/* roulang page: index */
:root{
  --bg:#070C14;
  --panel:#0C1622;
  --panel-2:#12202E;
  --primary:#35E0C8;
  --primary-hover:#57EFD9;
  --primary-active:#24BFA9;
  --accent:#FF7A59;
  --violet:#7C6BFF;
  --text:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6E8194;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.10);
  --glass:rgba(16,28,40,.55);
  --r-card:18px;
  --r-sm:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(53,224,200,.5), 0 12px 32px -10px rgba(53,224,200,.45);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(53,224,200,.10), transparent 62%),
    radial-gradient(900px 520px at -6% 18%, rgba(124,107,255,.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(53,224,200,.28);color:#fff;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-head .head-desc{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;white-space:nowrap;transition:color .2s var(--ease),gap .2s var(--ease);}
.text-link::after{content:"→";display:inline-block;transition:transform .2s var(--ease);}
.text-link:hover{color:var(--primary-hover);}
.text-link:hover::after{transform:translateX(4px);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:100;padding:0 24px;display:flex;justify-content:center;transition:top .3s var(--ease);}
.site-header.is-scrolled{top:8px;}
.nav-pill{
  width:100%;max-width:1120px;display:flex;align-items:center;gap:14px;
  padding:12px 14px 12px 20px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  transition:padding .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .nav-pill{padding:8px 12px 8px 18px;background:rgba(12,22,34,.88);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--violet));color:#04120f;font-weight:700;font-size:16px;letter-spacing:-.02em;}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.01em;}
.brand-text small{font-size:10px;letter-spacing:.18em;color:var(--text-3);}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{position:relative;display:inline-block;padding:8px 10px;border-radius:var(--r-pill);font-size:13.5px;color:var(--text-2);white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:active{transform:scale(.98);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--primary);}
.nav-cta{flex-shrink:0;}
.nav-toggle{display:none;position:relative;z-index:120;width:40px;height:40px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;flex-shrink:0;}
.nav-toggle span{display:block;width:16px;height:1.6px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .25s var(--ease);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* ---------- 按钮与徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);}
.btn-primary{background:linear-gradient(135deg,var(--primary),#22c3ad);color:#04120f;box-shadow:var(--shadow-glow);}
.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),var(--primary));transform:translateY(-2px);}
.btn-primary:active{transform:scale(.985);background:var(--primary-active);}
.btn-ghost{border-color:rgba(255,255,255,.18);color:var(--text);background:rgba(255,255,255,.03);}
.btn-ghost:hover{border-color:rgba(53,224,200,.55);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.985);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1;background:rgba(53,224,200,.12);color:var(--primary);}
.badge-accent{background:rgba(255,122,89,.12);color:var(--accent);}
.badge-violet{background:rgba(124,107,255,.14);color:#a99cff;}
.badge-muted{background:rgba(255,255,255,.06);color:var(--text-2);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 64px;overflow:hidden;min-height:560px;}
.hero-bg{position:absolute;inset:0;z-index:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.55;}
.hero-veil{position:absolute;inset:0;z-index:1;background:
  linear-gradient(100deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.90) 42%,rgba(7,12,20,.62) 74%,rgba(7,12,20,.88) 100%),
  radial-gradient(680px 380px at 78% 26%, rgba(53,224,200,.20), transparent 68%),
  radial-gradient(520px 320px at 90% 80%, rgba(124,107,255,.16), transparent 70%);}
.hero-grid{position:absolute;inset:0;z-index:1;opacity:.35;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(circle at 70% 40%,#000 10%,transparent 72%);-webkit-mask-image:radial-gradient(circle at 70% 40%,#000 10%,transparent 72%);}
.hero > .container{position:relative;z-index:2;}
.hero-copy{max-width:620px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);border:1px solid rgba(53,224,200,.3);background:rgba(53,224,200,.08);color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.02em;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.15;font-weight:700;letter-spacing:-.015em;margin-top:20px;text-wrap:balance;}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.6vw,18px);color:var(--text-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:60px;border:1px solid var(--line-strong);border-radius:var(--r-card);background:var(--glass);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);overflow:hidden;box-shadow:var(--shadow-card);}
.stats li{padding:22px 20px;border-left:1px solid var(--line);}
.stats li:first-child{border-left:0;}
.stats strong{display:block;font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.2;color:var(--primary);font-variant-numeric:tabular-nums;}
.stats span{display:block;margin-top:4px;font-size:13px;color:var(--text-3);}
.stats-note{margin-top:12px;font-size:12px;color:var(--text-3);}

/* ---------- 栏目导航卡片 ---------- */
.cols-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 22px 46px -22px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.08);}
.card:active{transform:scale(.995);}
.media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(53,224,200,.16),rgba(124,107,255,.16));}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.card:hover .media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.4;font-weight:600;}
.card-body p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-foot .arrow{color:var(--primary);transition:transform .2s var(--ease);}
.card:hover .card-foot .arrow{transform:translateX(4px);}

/* ---------- 步骤轴 ---------- */
.steps{display:grid;gap:40px;}
.step{position:relative;display:grid;grid-template-columns:118px 1fr;gap:28px;padding-bottom:40px;}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::before{content:"";position:absolute;left:58px;top:86px;bottom:8px;width:1px;background:linear-gradient(180deg,rgba(53,224,200,.55),rgba(53,224,200,0));}
.step-num{font-size:clamp(44px,5vw,60px);font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(53,224,200,.45);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.step-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:8px;}
.step-body p{font-size:15px;line-height:1.8;color:var(--text-2);max-width:640px;}
.step-body .text-link{margin-top:14px;}

/* ---------- 横滑卡片带 ---------- */
.rail-wrap{position:relative;}
.rail-wrap::before,.rail-wrap::after{content:"";position:absolute;top:0;bottom:0;width:64px;pointer-events:none;z-index:3;}
.rail-wrap::before{left:-24px;background:linear-gradient(90deg,var(--bg),transparent);}
.rail-wrap::after{right:-24px;background:linear-gradient(270deg,var(--bg),transparent);}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:thin;scrollbar-color:rgba(53,224,200,.4) transparent;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:rgba(53,224,200,.35);border-radius:999px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.rail-card{flex:0 0 320px;scroll-snap-align:start;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),border-color .2s var(--ease);}
.rail-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);}
.rail-card .media{aspect-ratio:16/10;}
.rail-card .card-body h3{font-size:17px;}
.rail-hint{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--text-3);}
.rail-hint .dots{display:flex;gap:6px;}
.rail-hint .dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.18);}
.rail-hint .dots i.on{background:var(--primary);}

/* ---------- 进度组件 ---------- */
.roadmap-panel{background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:44px 40px 38px;}
.roadmap{padding:0 44px;}
.roadmap-track{position:relative;height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);margin-top:56px;}
.roadmap-fill{position:absolute;left:0;top:0;bottom:0;width:62%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--primary-active),var(--primary));box-shadow:0 0 18px rgba(53,224,200,.45);}
.roadmap-node{position:absolute;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:12px;}
.node-dot{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;line-height:1;background:var(--panel-2);border:1px solid rgba(255,255,255,.16);color:var(--text-3);}
.node-done{background:var(--primary);border-color:var(--primary);color:#04120f;box-shadow:0 0 16px rgba(53,224,200,.5);}
.node-current{background:rgba(53,224,200,.16);border-color:var(--primary);color:var(--primary);animation:pulse 2s var(--ease) infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(53,224,200,.45);}50%{box-shadow:0 0 0 9px rgba(53,224,200,0);}}
.roadmap-node em{font-style:normal;font-size:13px;color:var(--text-2);white-space:nowrap;}
.roadmap-node.is-done em,.roadmap-node.is-current em{color:var(--text);}
.roadmap-copy{display:grid;grid-template-columns:1fr 1fr;gap:24px 40px;margin-top:52px;padding-top:28px;border-top:1px solid var(--line);}
.roadmap-copy p{font-size:14px;line-height:1.8;color:var(--text-2);}
.roadmap-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.roadmap-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;}

/* ---------- 最新信息（CMS 区） ---------- */
.news-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start;}
.news-main{background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),border-color .2s var(--ease);}
.news-main:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);}
.news-main-link{display:grid;grid-template-columns:1fr;height:100%;}
.news-main .media{aspect-ratio:16/9;}
.news-main-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.news-main-body h3{font-size:20px;line-height:1.4;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main-body p{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:auto;font-size:13px;color:var(--text-3);}
.news-side{display:grid;gap:16px;}
.news-item{display:grid;grid-template-columns:112px 1fr;gap:16px;padding:14px;background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-sm);transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.news-item:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);background:var(--panel-2);}
.news-item .thumb{aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:linear-gradient(135deg,rgba(53,224,200,.16),rgba(124,107,255,.16));}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h3{font-size:15px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:13px;line-height:1.7;color:var(--text-3);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .news-meta{margin-top:8px;font-size:12px;}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:64px 24px;background:var(--panel);border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);text-align:center;}
.empty-state .empty-icon{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(53,224,200,.3);background:rgba(53,224,200,.08);color:var(--primary);font-size:22px;}
.empty-state p{font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:880px;}
.faq-item{background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--r-img);overflow:hidden;transition:border-color .2s var(--ease),background .2s var(--ease);}
.faq-item[open]{border-color:rgba(53,224,200,.3);background:var(--panel-2);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:600;line-height:1.5;cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";flex-shrink:0;width:24px;height:24px;display:grid;place-items:center;border-radius:50%;border:1px solid rgba(255,255,255,.16);font-size:16px;font-weight:400;color:var(--primary);transition:transform .25s var(--ease),border-color .25s var(--ease);}
.faq-item[open] summary::after{transform:rotate(45deg);border-color:rgba(53,224,200,.5);}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:44px 44px;border-radius:var(--r-card);border:1px solid var(--line-strong);background:var(--glass);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);box-shadow:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-200px;border-radius:50%;background:radial-gradient(circle,rgba(53,224,200,.22),transparent 68%);pointer-events:none;}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.3;font-weight:700;position:relative;}
.cta-band p{margin-top:8px;font-size:15px;color:var(--text-2);position:relative;}
.cta-band .btn{position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:24px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(12,22,34,.4),rgba(7,12,20,.9));}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-3);max-width:280px;}
.footer-quick{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px;}
.footer-quick a{font-size:13px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-quick a:hover{color:var(--primary);}
.footer-col h4,.footer-note h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--primary);}
.footer-note p{font-size:13px;line-height:1.9;color:var(--text-3);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 34px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);transition:color .2s var(--ease),transform .2s var(--ease);}
.to-top:hover{color:var(--primary);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-pill{-webkit-backdrop-filter:blur(14px) saturate(120%);}
}
@media (max-width:1024px){
  :root{--space-section:64px;}
  .site-header{padding:0 18px;}
  .nav-pill{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(12,22,34,.95);}
  .nav-list{position:fixed;inset:0;z-index:110;display:flex;flex-direction:column;justify-content:center;align-items:stretch;gap:4px;margin:0;padding:96px 28px 48px;background:rgba(7,12,20,.95);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);}
  body.nav-open .nav-list{opacity:1;visibility:visible;transform:none;}
  .nav-link{font-size:19px;padding:15px 16px;color:var(--text);}
  .nav-link:hover{background:rgba(255,255,255,.06);}
  .nav-link.is-active::after{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .cols-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero{padding-top:132px;}
}
@media (max-width:768px){
  :root{--space-section:48px;}
  .container{padding:0 18px;}
  .hero{padding:120px 0 48px;min-height:0;}
  .hero h1{font-size:clamp(28px,7vw,38px);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stats li:nth-child(3){border-left:0;}
  .stats li:nth-child(n+3){border-top:1px solid var(--line);}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px;}
  .cols-grid{grid-template-columns:1fr;}
  .step{grid-template-columns:1fr;gap:12px;padding-bottom:32px;}
  .step:not(:last-child)::before{display:none;}
  .step-num{font-size:40px;}
  .roadmap-panel{padding:32px 22px 28px;}
  .roadmap{padding:0 20px;}
  .roadmap-copy{grid-template-columns:1fr;margin-top:38px;}
  .roadmap-node em{font-size:11px;}
  .rail-card{flex:0 0 82%;}
  .news-item{grid-template-columns:92px 1fr;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  body{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .stats strong{font-size:22px;}
  .roadmap-track{margin-top:44px;}
  .roadmap-node em{display:none;}
  .news-item{grid-template-columns:1fr;}
  .news-item .thumb{aspect-ratio:16/9;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;font-size:14px;}
  .rail-wrap::before,.rail-wrap::after{width:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#070C14;
  --bg-soft:#0C1622;
  --panel:#12202E;
  --panel-2:#16273A;
  --glass:rgba(16,28,40,.55);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.10);
  --text:#EAF2F8;
  --muted:#A9BACB;
  --dim:#6E8194;
  --primary:#35E0C8;
  --primary-hover:#57EFD9;
  --primary-press:#24BFA9;
  --coral:#FF7A59;
  --violet:#7C6BFF;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-lift:0 24px 50px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-glow:0 0 0 1px rgba(53,224,200,.5), 0 12px 32px -10px rgba(53,224,200,.45);
  --container:1200px;
  --pad:24px;
  --section-y:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(53,224,200,.10), transparent 62%),
    radial-gradient(760px 480px at 6% 4%, rgba(124,107,255,.10), transparent 60%),
    linear-gradient(180deg, #070C14 0%, #0A121D 48%, #070C14 100%);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary);}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(53,224,200,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
}
.section{padding-top:var(--section-y);padding-bottom:var(--section-y);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head p{color:var(--muted);font-size:15px;max-width:620px;margin-top:10px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(53,224,200,0));
}

/* ---------- Header / 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  padding:16px var(--pad);
  display:flex;
  justify-content:center;
  transition:padding .3s var(--ease);
}
.nav-pill{
  width:100%;
  max-width:1120px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:padding .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled{padding-top:8px;padding-bottom:8px;}
.site-header.is-scrolled .nav-pill{
  padding:6px 12px 6px 16px;
  background:rgba(10,18,28,.88);
  box-shadow:0 22px 44px -28px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.07);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#1C8E82 78%);
  color:#04211E;
  font-weight:700;
  font-size:17px;
  letter-spacing:.02em;
  box-shadow:0 10px 22px -12px rgba(53,224,200,.85), inset 0 1px 0 rgba(255,255,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.02em;}
.brand-text small{font-size:11px;color:var(--dim);letter-spacing:.14em;}
.brand:hover .brand-text strong{color:var(--primary);}

.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
  flex:1 1 auto;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 11px;
  font-size:13px;
  color:var(--muted);
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:4px;height:4px;
  border-radius:50%;
  background:var(--primary);
  transform:translate(-50%,4px) scale(0);
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:translate(-50%,0) scale(1);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn:active{transform:scale(.985);}
.btn-primary{
  background:linear-gradient(135deg,var(--primary-hover),var(--primary) 45%,var(--primary-press));
  color:#04211E;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#04211E;
  box-shadow:0 0 0 1px rgba(87,239,217,.7), 0 18px 38px -12px rgba(53,224,200,.6);
  transform:translateY(-2px);
}
.btn-ghost{
  border:1px solid rgba(53,224,200,.42);
  color:var(--primary);
  background:rgba(53,224,200,.05);
}
.btn-ghost:hover{
  color:var(--primary-hover);
  border-color:var(--primary-hover);
  background:rgba(53,224,200,.12);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:13px;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;border-radius:2px;
  background:var(--text);
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  overflow:hidden;
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.5;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg, #070C14 4%, rgba(7,12,20,.94) 40%, rgba(7,12,20,.55) 72%, rgba(7,12,20,.88) 100%),
    radial-gradient(620px 360px at 78% 22%, rgba(53,224,200,.16), transparent 66%);
  z-index:-1;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--dim);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span[aria-current]{color:var(--text);}
.crumbs .sep{color:rgba(255,255,255,.22);}

.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:.01em;
  max-width:820px;
}
.page-hero .lede{
  margin-top:16px;
  font-size:16px;
  color:var(--muted);
  max-width:660px;
}
.quick-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.tag-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  font-size:13px;
  color:var(--muted);
  transition:all .2s var(--ease);
}
.tag-link:hover{
  color:var(--primary);
  border-color:rgba(53,224,200,.45);
  background:rgba(53,224,200,.08);
  transform:translateY(-2px);
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:48px;
  padding-top:26px;
  border-top:1px solid var(--line);
  max-width:900px;
}
.hero-stats .stat b{
  display:block;
  font-size:26px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--primary);
  line-height:1.2;
}
.hero-stats .stat span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--dim);
}

/* ---------- 时间轴 ---------- */
.timeline-wrap{position:relative;}
.timeline{
  position:relative;
  padding-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:50%;
  top:12px;
  bottom:40px;
  width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg, rgba(53,224,200,.65), rgba(53,224,200,.20) 42%, rgba(255,255,255,.06) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  padding-bottom:52px;
}
.tl-item::after{
  content:"";
  position:absolute;
  left:50%;
  top:26px;
  width:14px;height:14px;
  transform:translate(-50%,0);
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--primary);
  box-shadow:0 0 0 5px rgba(53,224,200,.10), 0 0 16px rgba(53,224,200,.45);
}
.tl-item:last-child{padding-bottom:0;}
.tl-card{
  grid-column:1;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.tl-item:nth-child(even) .tl-card{grid-column:2;}
.tl-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.4);
  box-shadow:var(--shadow-lift);
}
.tl-thumb{
  border-radius:var(--radius-md);
  overflow:hidden;
  aspect-ratio:16/8.5;
  margin-bottom:18px;
  position:relative;
  background:linear-gradient(135deg,rgba(53,224,200,.16),rgba(124,107,255,.14));
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}
.tl-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,0) 45%,rgba(7,12,20,.55));
}
.tl-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:12px;
}
.tl-date{
  font-size:12px;
  font-weight:600;
  color:var(--dim);
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:5px 11px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1;
  background:rgba(53,224,200,.12);
  color:var(--primary);
  border:1px solid rgba(53,224,200,.22);
}
.badge-coral{
  background:rgba(255,122,89,.12);
  color:var(--coral);
  border-color:rgba(255,122,89,.24);
}
.badge-violet{
  background:rgba(124,107,255,.14);
  color:#A79BFF;
  border-color:rgba(124,107,255,.26);
}
.tl-card h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  margin-bottom:10px;
}
.tl-card p{
  font-size:15px;
  color:var(--muted);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.card-link .arrow{transition:transform .2s var(--ease);}
.card-link:hover .arrow{transform:translateX(4px);}

/* ---------- 查阅要点 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,320px) minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.split-intro h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
}
.split-intro p{color:var(--muted);font-size:15px;}
.point-list{display:grid;gap:16px;}
.point{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:18px;
  padding:22px;
  border-radius:var(--radius-lg);
  background:var(--bg-soft);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease), transform .2s var(--ease);
}
.point:hover{border-color:rgba(53,224,200,.34);transform:translateY(-2px);}
.point-idx{
  font-size:22px;
  font-weight:700;
  color:rgba(53,224,200,.55);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  border-right:1px solid var(--line);
  padding-right:12px;
}
.point h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:6px;}
.point p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- 进度示意 ---------- */
.progress-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(560px 260px at 12% 0%, rgba(53,224,200,.12), transparent 68%),
    var(--bg-soft);
  padding:36px;
  box-shadow:var(--shadow-card);
}
.progress-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:26px;
}
.progress-top h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;}
.progress-top span{font-size:13px;color:var(--dim);}
.bar{
  position:relative;
  height:10px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.bar-fill{
  position:absolute;
  inset:0 auto 0 0;
  width:68%;
  border-radius:var(--radius-pill);
  background:linear-gradient(90deg,rgba(53,224,200,.55),var(--primary));
  box-shadow:0 0 18px rgba(53,224,200,.55);
}
.milestones{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:28px;
}
.milestone{display:flex;gap:12px;align-items:flex-start;}
.dot{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  margin-top:2px;
}
.dot.done{background:var(--primary);color:#04211E;box-shadow:0 0 14px rgba(53,224,200,.55);}
.dot.now{border:2px solid var(--primary);color:var(--primary);position:relative;}
.dot.now::after{
  content:"";
  position:absolute;inset:-6px;
  border-radius:50%;
  border:1px solid rgba(53,224,200,.45);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%{transform:scale(.75);opacity:.9;}
  70%{transform:scale(1.25);opacity:0;}
  100%{opacity:0;}
}
.dot.todo{border:2px solid rgba(255,255,255,.18);color:var(--dim);}
.milestone b{display:block;font-size:14px;font-weight:600;}
.milestone span{display:block;font-size:12.5px;color:var(--dim);margin-top:2px;line-height:1.6;}
.progress-note{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin-top:30px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.progress-note p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--bg-soft);
  overflow:hidden;
  transition:border-color .2s var(--ease), background .2s var(--ease);
}
.faq-item[open]{
  border-color:rgba(53,224,200,.32);
  background:var(--panel);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  transition:transform .3s var(--ease), border-color .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--muted);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .3s var(--ease);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:rgba(53,224,200,.5);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--primary);}
.faq-item[open] .faq-icon::after{height:0;}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(620px 240px at 8% 0%, rgba(53,224,200,.16), transparent 66%),
    radial-gradient(460px 220px at 92% 100%, rgba(124,107,255,.14), transparent 70%),
    rgba(16,28,40,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  padding:34px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;}
.cta-band p{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:560px;}

/* ---------- 相关内容 ---------- */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.rel-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.4);
  box-shadow:var(--shadow-lift);
}
.rel-thumb{
  aspect-ratio:16/9;
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(53,224,200,.16),rgba(124,107,255,.14));
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.45;}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.rel-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:auto;
  padding-top:12px;
  font-size:12.5px;
  color:var(--dim);
}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:var(--section-y);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.4),rgba(7,12,20,.9));
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  max-width:300px;
}
.footer-quick{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-top:18px;
}
.footer-quick a{font-size:13px;color:var(--dim);}
.footer-quick a:hover{color:var(--primary);}
.footer-col h4,.footer-note h4{
  font-size:14px;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-note p{font-size:13px;color:var(--dim);line-height:1.85;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  padding-bottom:28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--dim);
}
.to-top{color:var(--muted);font-size:13px;}
.to-top:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  :root{--container:1120px;}
}
@media (max-width:1024px){
  :root{--section-y:64px;}
  .nav-list{gap:0;}
  .nav-link{padding:8px 8px;font-size:12.5px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tl-item{gap:40px;}
}
@media (max-width:860px){
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-list{
    position:fixed;
    inset:0;
    z-index:110;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:4px;
    padding:108px 26px 40px;
    background:rgba(7,12,20,.94);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
    overflow-y:auto;
    margin:0;
  }
  body.nav-open .nav-list{opacity:1;visibility:visible;transform:none;}
  .nav-link{font-size:19px;padding:14px 0;width:100%;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--primary);}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px;}
  .page-hero{padding-top:128px;padding-bottom:56px;}
  .timeline::before{left:9px;transform:none;bottom:24px;}
  .tl-item{grid-template-columns:1fr;gap:0;padding-left:40px;padding-bottom:36px;}
  .tl-item .tl-card,
  .tl-item:nth-child(even) .tl-card{grid-column:1;}
  .tl-item::after{left:9px;top:24px;transform:translate(-50%,0);}
  .milestones{grid-template-columns:repeat(2,1fr);gap:22px;}
  .progress-note{grid-template-columns:1fr;}
  .progress-panel{padding:26px;}
  .cta-band{padding:26px;}
}
@media (max-width:768px){
  :root{--pad:18px;--section-y:52px;}
  .section-head{margin-bottom:28px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{font-size:12.5px;}
  .page-hero h1{font-size:clamp(26px,6.4vw,34px);}
  .split-intro h2{font-size:22px;}
}
@media (max-width:560px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px 14px;margin-top:34px;}
  .hero-stats .stat b{font-size:22px;}
  .quick-tags .tag-link{font-size:12.5px;padding:7px 13px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .cta-band .btn{width:100%;}
  .milestones{grid-template-columns:1fr;}
  .point{grid-template-columns:1fr;gap:10px;}
  .point-idx{border-right:0;border-bottom:1px solid var(--line);padding:0 0 8px;font-size:18px;}
  .tl-card{padding:18px;}
  .progress-panel{padding:20px;}
  .cta-band{padding:22px;}
  .faq-item summary{font-size:15px;padding:16px 16px;}
  .faq-body{padding:0 16px 16px;}
}

/* roulang page: article */
:root {
    --bg: #070C14;
    --bg-soft: #0A121D;
    --panel: #0C1622;
    --panel-2: #12202E;
    --panel-3: #16283A;
    --primary: #35E0C8;
    --primary-hover: #57EFD9;
    --primary-press: #24BFA9;
    --coral: #FF7A59;
    --violet: #7C6BFF;
    --text: #EAF2F8;
    --text-soft: #A9BACB;
    --text-dim: #6E8194;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .14);
    --glass: rgba(16, 28, 40, .55);
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 12px;
    --pill: 999px;
    --shadow-card: 0 18px 40px -24px rgba(0, 0, 0, .8), inset 0 1px 0 rgba(255, 255, 255, .06);
    --shadow-glow: 0 0 0 1px rgba(53, 224, 200, .5), 0 12px 32px -10px rgba(53, 224, 200, .45);
    --container: 1200px;
    --ease: cubic-bezier(.2, .7, .3, 1);
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text);
    background:
        radial-gradient(880px 520px at 88% -8%, rgba(53, 224, 200, .10), transparent 62%),
        radial-gradient(760px 500px at -8% 28%, rgba(124, 107, 255, .09), transparent 66%),
        linear-gradient(180deg, #070C14 0%, #08101A 46%, #070C14 100%);
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
body.nav-open {
    overflow: hidden;
}
img {
    display: block;
    max-width: 100%;
}
a {
    color: inherit;
    text-decoration: none;
}
button,
input,
textarea,
select {
    font: inherit;
}
button {
    color: inherit;
}
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote {
    margin: 0;
}
ul,
ol {
    padding: 0;
    list-style: none;
}
::selection {
    color: #04120F;
    background: var(--primary);
}
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}
.container {
    width: min(calc(100% - 48px), var(--container));
    margin: 0 auto;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: var(--pill);
    background: transparent;
    color: var(--text);
    font-size: 14.5px;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease), color .2s var(--ease);
}
.btn:hover {
    transform: translateY(-2px);
}
.btn:active {
    transform: scale(.985);
}
.btn-primary {
    color: #04120F;
    background: linear-gradient(135deg, var(--primary-hover), var(--primary) 55%, var(--primary-press));
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
    color: #04120F;
    box-shadow: 0 0 0 1px rgba(87, 239, 217, .65), 0 16px 38px -12px rgba(53, 224, 200, .58);
}
.btn-ghost {
    color: var(--text);
    background: rgba(255, 255, 255, .035);
    border-color: rgba(255, 255, 255, .18);
}
.btn-ghost:hover {
    color: var(--primary-hover);
    border-color: rgba(53, 224, 200, .46);
    background: rgba(53, 224, 200, .06);
}
.btn-sm {
    min-height: 38px;
    padding: 0 16px;
    font-size: 13px;
}
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 24px;
    padding: 0 10px;
    border-radius: var(--pill);
    color: var(--primary-hover);
    background: rgba(53, 224, 200, .12);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .02em;
    line-height: 1;
    white-space: nowrap;
}
.badge-muted {
    color: var(--text-soft);
    background: rgba(255, 255, 255, .06);
}
.badge-coral {
    color: #FFB39F;
    background: rgba(255, 122, 89, .14);
}
.site-header {
    position: fixed;
    top: 16px;
    left: 0;
    right: 0;
    z-index: 60;
    padding: 0 24px;
    transition: top .25s var(--ease);
}
.nav-pill {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 10px 14px 10px 16px;
    border-radius: var(--pill);
    transition: padding .25s var(--ease);
}
.nav-pill::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    border: 1px solid var(--line-strong);
    border-radius: inherit;
    background: rgba(16, 28, 40, .55);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .24), inset 0 1px 0 rgba(255, 255, 255, .06);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
    pointer-events: none;
    transition: background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.nav-pill > * {
    position: relative;
    z-index: 1;
}
.site-header.is-scrolled {
    top: 10px;
}
.site-header.is-scrolled .nav-pill {
    padding-top: 7px;
    padding-bottom: 7px;
}
.site-header.is-scrolled .nav-pill::before {
    background: rgba(7, 12, 20, .86);
    border-color: rgba(53, 224, 200, .17);
    box-shadow: 0 18px 44px -24px rgba(0, 0, 0, .92), inset 0 1px 0 rgba(255, 255, 255, .06);
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
    min-width: max-content;
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    color: #04120F;
    background: linear-gradient(145deg, var(--primary-hover), var(--primary) 48%, var(--primary-press));
    box-shadow: 0 8px 22px -10px rgba(53, 224, 200, .75), inset 0 1px 0 rgba(255, 255, 255, .35);
    font-size: 18px;
    font-weight: 800;
    line-height: 1;
}
.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.brand-text strong {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .01em;
}
.brand-text small {
    margin-top: 4px;
    color: var(--text-dim);
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: .12em;
}
.nav-list {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
}
.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 11px;
    border-radius: var(--pill);
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.2;
    transition: color .2s var(--ease), background .2s var(--ease);
}
.nav-link:hover {
    color: var(--text);
    background: rgba(255, 255, 255, .04);
}
.nav-link.is-active {
    color: var(--primary-hover);
    background: rgba(53, 224, 200, .08);
}
.nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 3px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(53, 224, 200, .9);
}
.nav-cta {
    flex: 0 0 auto;
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background: rgba(255, 255, 255, .04);
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    width: 17px;
    height: 1.5px;
    margin: 4px auto;
    border-radius: 2px;
    background: var(--text);
    transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle.is-open span:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
}
.article-hero {
    position: relative;
    overflow: hidden;
    padding: 150px 0 68px;
    background-image:
        linear-gradient(90deg, rgba(7, 12, 20, .98) 0%, rgba(7, 12, 20, .91) 46%, rgba(7, 12, 20, .62) 100%),
        radial-gradient(700px 360px at 78% 25%, rgba(53, 224, 200, .16), transparent 68%),
        url('/assets/images/backpic/back-3.webp');
    background-position: center;
    background-size: cover;
    border-bottom: 1px solid var(--line);
}
.article-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(90deg, rgba(0, 0, 0, .7), transparent 74%);
    pointer-events: none;
}
.article-hero .container {
    position: relative;
    z-index: 1;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 26px;
    color: var(--text-dim);
    font-size: 13px;
    line-height: 1.6;
}
.breadcrumb a {
    transition: color .2s var(--ease);
}
.breadcrumb a:hover {
    color: var(--primary-hover);
}
.breadcrumb .sep {
    color: rgba(169, 186, 203, .46);
}
.breadcrumb .current {
    max-width: min(560px, 70vw);
    overflow: hidden;
    color: var(--text-soft);
    text-overflow: ellipsis;
    white-space: nowrap;
}
.article-head {
    max-width: 940px;
}
.article-kicker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}
.article-kicker .tag {
    display: inline-flex;
    align-items: center;
    min-height: 27px;
    padding: 0 11px;
    border: 1px solid rgba(53, 224, 200, .20);
    border-radius: var(--pill);
    color: var(--primary-hover);
    background: rgba(53, 224, 200, .08);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .02em;
}
.article-kicker .tag.is-coral {
    color: #FFB39F;
    border-color: rgba(255, 122, 89, .24);
    background: rgba(255, 122, 89, .10);
}
.article-head h1 {
    max-width: 980px;
    color: #F4FAFE;
    font-size: clamp(30px, 4.4vw, 52px);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -.02em;
    text-wrap: balance;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 22px;
    margin-top: 26px;
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.6;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.article-meta span::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgba(53, 224, 200, .72);
    box-shadow: 0 0 10px rgba(53, 224, 200, .45);
}
.article-main {
    position: relative;
    padding: 66px 0 82px;
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 800px) 260px;
    gap: 54px;
    align-items: start;
    justify-content: center;
}
.article-paper {
    min-width: 0;
    padding: 44px 50px 50px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(18, 32, 46, .96), rgba(12, 22, 34, .98));
    box-shadow: var(--shadow-card);
}
.article-body {
    color: #D9E5EE;
    font-size: 16px;
    line-height: 1.85;
    overflow-wrap: break-word;
}
.article-body > *:first-child {
    margin-top: 0;
}
.article-body > *:last-child {
    margin-bottom: 0;
}
.article-body p {
    margin: 0 0 18px;
}
.article-body h2 {
    margin: 44px 0 18px;
    padding-left: 14px;
    border-left: 3px solid var(--primary);
    color: #F2FAFE;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: -.01em;
}
.article-body h3 {
    margin: 32px 0 14px;
    color: #ECF6FC;
    font-size: 19px;
    font-weight: 650;
    line-height: 1.5;
}
.article-body h4 {
    margin: 26px 0 12px;
    color: var(--text);
    font-size: 17px;
    font-weight: 650;
}
.article-body ul,
.article-body ol {
    margin: 0 0 20px;
    padding-left: 23px;
}
.article-body ul {
    list-style: disc;
}
.article-body ol {
    list-style: decimal;
}
.article-body li {
    margin: 7px 0;
    padding-left: 2px;
}
.article-body li::marker {
    color: var(--primary);
}
.article-body a {
    color: var(--primary-hover);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    transition: color .2s var(--ease);
}
.article-body a:hover {
    color: #9BFFEF;
}
.article-body strong {
    color: #F5FAFE;
    font-weight: 650;
}
.article-body blockquote {
    position: relative;
    margin: 26px 0;
    padding: 18px 20px 18px 22px;
    border-left: 3px solid rgba(53, 224, 200, .78);
    border-radius: 0 14px 14px 0;
    color: #C8D7E3;
    background: rgba(255, 255, 255, .035);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .04), 0 12px 30px -28px rgba(53, 224, 200, .8);
}
.article-body blockquote p:last-child {
    margin-bottom: 0;
}
.article-body table {
    width: 100%;
    margin: 24px 0;
    border-collapse: collapse;
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.7;
}
.article-body th,
.article-body td {
    padding: 11px 13px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
.article-body th {
    color: var(--primary-hover);
    background: rgba(53, 224, 200, .07);
    font-weight: 600;
}
.article-body tr:last-child td {
    border-bottom: 0;
}
.article-body pre {
    margin: 24px 0;
    padding: 18px;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #060B12;
    color: #C9F7EE;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 13.5px;
    line-height: 1.75;
}
.article-body code {
    padding: 2px 6px;
    border-radius: 6px;
    background: rgba(255, 255, 255, .07);
    color: #BDF8EC;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: .9em;
}
.article-body pre code {
    padding: 0;
    background: transparent;
    color: inherit;
    font-size: inherit;
}
.article-body img {
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 24px auto;
    border: 1px solid var(--line);
    border-radius: 14px;
}
.article-body hr {
    height: 1px;
    margin: 34px 0;
    border: 0;
    background: var(--line);
}
.article-aside {
    position: sticky;
    top: 108px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.aside-box {
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: rgba(12, 22, 34, .76);
    box-shadow: var(--shadow-card);
}
.aside-title {
    margin-bottom: 14px;
    color: var(--text);
    font-size: 15px;
    font-weight: 650;
    line-height: 1.4;
}
.toc-list {
    display: flex;
    flex-direction: column;
    gap: 3px;
    max-height: 50vh;
    overflow: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(53, 224, 200, .34) transparent;
}
.toc-list a {
    display: block;
    padding: 8px 10px 8px 13px;
    border-left: 2px solid var(--line);
    border-radius: 0 8px 8px 0;
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.55;
    transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.toc-list a:hover,
.toc-list a.is-current {
    color: var(--primary-hover);
    border-left-color: var(--primary);
    background: rgba(53, 224, 200, .06);
}
.toc-list a.toc-sub {
    padding-left: 24px;
    font-size: 12.5px;
    color: var(--text-dim);
}
.aside-cta {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(220px 150px at 100% 0%, rgba(53, 224, 200, .16), transparent 66%),
        linear-gradient(180deg, rgba(18, 32, 46, .94), rgba(12, 22, 34, .94));
}
.aside-cta h2 {
    margin: 13px 0 9px;
    color: var(--text);
    font-size: 18px;
    line-height: 1.4;
}
.aside-cta p {
    margin-bottom: 17px;
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.75;
}
.aside-cta .btn {
    width: 100%;
}
.empty-state {
    padding: 30px 0 18px;
    text-align: center;
}
.empty-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    margin-bottom: 18px;
    border: 1px solid rgba(53, 224, 200, .24);
    border-radius: 18px;
    color: var(--primary);
    background: rgba(53, 224, 200, .08);
    font-size: 24px;
    font-weight: 700;
    box-shadow: 0 14px 34px -25px rgba(53, 224, 200, .9);
}
.empty-state h2 {
    margin-bottom: 10px;
    color: var(--text);
    font-size: 24px;
}
.empty-state p {
    max-width: 430px;
    margin: 0 auto 22px;
    color: var(--text-soft);
    font-size: 14.5px;
}
.related-section {
    padding: 0 0 78px;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}
.section-head h2 {
    color: var(--text);
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.25;
    letter-spacing: -.01em;
}
.section-head .text-link {
    color: var(--text-soft);
    font-size: 13.5px;
    white-space: nowrap;
    transition: color .2s var(--ease);
}
.section-head .text-link:hover {
    color: var(--primary-hover);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}
.related-card {
    display: grid;
    grid-template-columns: 94px minmax(0, 1fr);
    gap: 14px;
    min-width: 0;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(18, 32, 46, .82), rgba(12, 22, 34, .92));
    box-shadow: var(--shadow-card);
    transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.related-card:hover {
    transform: translateY(-3px);
    border-color: rgba(53, 224, 200, .28);
    box-shadow: 0 22px 42px -28px rgba(0, 0, 0, .95), 0 0 0 1px rgba(53, 224, 200, .08);
}
.related-thumb {
    position: relative;
    overflow: hidden;
    width: 94px;
    height: 94px;
    border-radius: 12px;
    background: linear-gradient(145deg, rgba(53, 224, 200, .18), rgba(124, 107, 255, .14));
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s var(--ease);
}
.related-card:hover .related-thumb img {
    transform: scale(1.05);
}
.related-content {
    min-width: 0;
}
.related-content h3 {
    display: -webkit-box;
    overflow: hidden;
    color: var(--text);
    font-size: 15px;
    font-weight: 650;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.related-content p {
    display: -webkit-box;
    margin-top: 7px;
    overflow: hidden;
    color: var(--text-soft);
    font-size: 12.5px;
    line-height: 1.6;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.related-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 7px;
    margin-top: 10px;
    color: var(--text-dim);
    font-size: 11.5px;
}
.article-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 30px;
}
.post-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(12, 22, 34, .72);
    transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}
.post-nav:hover {
    transform: translateY(-2px);
    border-color: rgba(53, 224, 200, .28);
    background: rgba(18, 32, 46, .8);
}
.post-nav span {
    color: var(--text-dim);
    font-size: 12px;
}
.post-nav strong {
    overflow: hidden;
    color: var(--text);
    font-size: 15px;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.post-nav.next {
    text-align: right;
}
.back-row {
    display: flex;
    justify-content: center;
    margin-top: 26px;
}
.page-cta {
    padding: 0 0 88px;
}
.cta-strip {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    overflow: hidden;
    padding: 34px 38px;
    border: 1px solid rgba(53, 224, 200, .18);
    border-radius: 22px;
    background:
        radial-gradient(460px 210px at 90% -30%, rgba(53, 224, 200, .20), transparent 64%),
        linear-gradient(120deg, rgba(18, 32, 46, .92), rgba(10, 18, 29, .94));
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
}
.cta-strip::after {
    content: "";
    position: absolute;
    right: -70px;
    bottom: -100px;
    width: 270px;
    height: 270px;
    border: 1px solid rgba(53, 224, 200, .12);
    border-radius: 50%;
    pointer-events: none;
}
.cta-strip > * {
    position: relative;
    z-index: 1;
}
.cta-strip h2 {
    margin: 12px 0 6px;
    color: var(--text);
    font-size: clamp(22px, 2.6vw, 30px);
    line-height: 1.3;
}
.cta-strip p {
    color: var(--text-soft);
    font-size: 14px;
}
.site-footer {
    position: relative;
    border-top: 1px solid var(--line);
    background:
        radial-gradient(700px 260px at 50% 0%, rgba(53, 224, 200, .055), transparent 72%),
        linear-gradient(180deg, rgba(8, 15, 24, .9), #060B12);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr .75fr .75fr 1.2fr;
    gap: 46px;
    padding-top: 58px;
    padding-bottom: 44px;
}
.footer-brand .brand {
    margin-bottom: 18px;
}
.footer-brand p {
    max-width: 310px;
    margin-bottom: 18px;
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.8;
}
.footer-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
}
.footer-quick a {
    color: var(--text-dim);
    font-size: 12.5px;
    transition: color .2s var(--ease);
}
.footer-quick a:hover {
    color: var(--primary-hover);
}
.footer-col h4,
.footer-note h4 {
    margin-bottom: 15px;
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
}
.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col a {
    color: var(--text-dim);
    font-size: 13.5px;
    line-height: 1.6;
    transition: color .2s var(--ease);
}
.footer-col a:hover {
    color: var(--primary-hover);
}
.footer-note p {
    color: var(--text-dim);
    font-size: 12.5px;
    line-height: 1.85;
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 18px;
    padding-bottom: 24px;
    border-top: 1px solid var(--line);
}
.footer-bottom p {
    color: var(--text-dim);
    font-size: 12px;
}
.to-top {
    color: var(--text-soft);
    font-size: 12.5px;
    transition: color .2s var(--ease);
}
.to-top:hover {
    color: var(--primary-hover);
}
@media (max-width: 1280px) {
    .container {
        width: min(calc(100% - 44px), 1160px);
    }
    .article-layout {
        gap: 38px;
        grid-template-columns: minmax(0, 760px) 248px;
    }
}
@media (max-width: 1080px) {
    .nav-link {
        padding: 0 8px;
        font-size: 13px;
    }
    .nav-pill {
        gap: 14px;
    }
    .article-layout {
        grid-template-columns: minmax(0, 1fr);
        max-width: 840px;
    }
    .article-aside {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1.2fr .8fr .8fr;
    }
    .footer-note {
        grid-column: 1 / -1;
    }
}
@media (max-width: 900px) {
    .nav-list {
        display: none;
    }
    .nav-toggle {
        display: block;
        margin-left: auto;
    }
    .nav-cta {
        margin-left: 0;
    }
    .nav-pill {
        padding-right: 10px;
    }
    .nav-list.is-open {
        position: fixed;
        top: 88px;
        left: 14px;
        right: 14px;
        bottom: 14px;
        z-index: 5;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        margin: 0;
        padding: 20px;
        overflow-y: auto;
        border: 1px solid var(--line-strong);
        border-radius: 24px;
        background: rgba(7, 12, 20, .97);
        box-shadow: 0 34px 90px rgba(0, 0, 0, .65);
        backdrop-filter: blur(18px) saturate(120%);
        -webkit-backdrop-filter: blur(18px) saturate(120%);
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    .nav-list {
        position: fixed;
        top: 88px;
        left: 14px;
        right: 14px;
        bottom: 14px;
        z-index: 5;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        margin: 0;
        padding: 20px;
        overflow-y: auto;
        border: 1px solid var(--line-strong);
        border-radius: 24px;
        background: rgba(7, 12, 20, .97);
        box-shadow: 0 34px 90px rgba(0, 0, 0, .65);
        backdrop-filter: blur(18px) saturate(120%);
        -webkit-backdrop-filter: blur(18px) saturate(120%);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s var(--ease);
    }
    .nav-list .nav-link {
        min-height: 52px;
        padding: 0 16px;
        border: 1px solid transparent;
        border-radius: 14px;
        background: rgba(255, 255, 255, .035);
        font-size: 16px;
    }
    .nav-list .nav-link.is-active {
        border-color: rgba(53, 224, 200, .2);
        background: rgba(53, 224, 200, .09);
    }
    .nav-list .nav-link.is-active::after {
        display: none;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .related-card {
        grid-template-columns: 108px minmax(0, 1fr);
    }
    .related-thumb {
        width: 108px;
        height: 108px;
    }
}
@media (max-width: 768px) {
    .container {
        width: calc(100% - 36px);
    }
    .site-header {
        top: 10px;
        padding: 0 14px;
    }
    .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 11px;
        font-size: 17px;
    }
    .brand-text strong {
        font-size: 14px;
    }
    .brand-text small {
        font-size: 9.5px;
    }
    .nav-cta {
        display: none;
    }
    .article-hero {
        padding: 128px 0 52px;
        background-position: 62% center;
    }
    .breadcrumb {
        margin-bottom: 20px;
        font-size: 12.5px;
    }
    .article-head h1 {
        font-size: clamp(27px, 7.6vw, 40px);
    }
    .article-meta {
        gap: 8px 16px;
        margin-top: 20px;
        font-size: 12.5px;
    }
    .article-main {
        padding: 44px 0 62px;
    }
    .article-paper {
        padding: 30px 22px 34px;
        border-radius: 18px;
    }
    .article-body {
        font-size: 15.5px;
        line-height: 1.85;
    }
    .article-body h2 {
        margin-top: 36px;
        font-size: 20px;
    }
    .article-body h3 {
        font-size: 18px;
    }
    .article-body table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        white-space: nowrap;
    }
    .related-section {
        padding-bottom: 60px;
    }
    .section-head {
        align-items: center;
    }
    .article-nav {
        grid-template-columns: 1fr;
    }
    .post-nav.next {
        text-align: left;
    }
    .page-cta {
        padding-bottom: 64px;
    }
    .cta-strip {
        flex-direction: column;
        align-items: flex-start;
        padding: 26px 22px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
        padding-top: 42px;
        padding-bottom: 32px;
    }
    .footer-brand,
    .footer-note {
        grid-column: 1 / -1;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}
@media (max-width: 520px) {
    .nav-pill {
        gap: 8px;
    }
    .brand-text small {
        letter-spacing: .08em;
    }
    .nav-list,
    .nav-list.is-open {
        top: 80px;
        left: 10px;
        right: 10px;
        bottom: 10px;
        padding: 16px;
    }
    .article-hero {
        padding-top: 116px;
    }
    .breadcrumb .current {
        max-width: 54vw;
    }
    .article-paper {
        padding: 26px 18px 30px;
    }
    .article-body {
        font-size: 15px;
    }
    .article-body blockquote {
        padding: 15px 15px 15px 17px;
    }
    .related-card {
        grid-template-columns: 88px minmax(0, 1fr);
        gap: 12px;
    }
    .related-thumb {
        width: 88px;
        height: 88px;
    }
    .cta-strip .btn,
    .back-row .btn {
        width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-brand,
    .footer-note {
        grid-column: auto;
    }
}
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

/* roulang page: category2 */
:root{
  --c-bg:#070C14;
  --c-panel:#0C1622;
  --c-panel-up:#12202E;
  --c-primary:#35E0C8;
  --c-primary-hover:#57EFD9;
  --c-primary-active:#24BFA9;
  --c-coral:#FF7A59;
  --c-violet:#7C6BFF;
  --c-text:#EAF2F8;
  --c-text-2:#A9BACB;
  --c-text-3:#6E8194;
  --c-line:rgba(255,255,255,.08);
  --c-line-2:rgba(255,255,255,.10);
  --c-glass:rgba(16,28,40,.55);
  --r-card:18px;
  --r-sm:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  --sh-glow:0 0 0 1px rgba(53,224,200,.5), 0 12px 32px -10px rgba(53,224,200,.45);
  --sp-section:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(53,224,200,.10), transparent 62%),
    radial-gradient(760px 480px at 4% 22%, rgba(124,107,255,.10), transparent 66%),
    linear-gradient(180deg,#070C14 0%,#08111B 46%,#070C14 100%);
  background-color:var(--c-bg);
  min-height:100vh;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--c-primary);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:rgba(53,224,200,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head .sub{color:var(--c-text-2);font-size:15px;margin-top:8px;max-width:620px;}
.link-more{
  font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:2px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.link-more:hover{border-bottom-color:var(--c-primary);color:var(--c-primary-hover);}
.link-more .arw{transition:transform .2s var(--ease);}
.link-more:hover .arw{transform:translateX(4px);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:120;
  padding:0 24px;
  transition:top .25s var(--ease);
}
.nav-pill{
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:var(--c-glass);
  border:1px solid var(--c-line-2);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.07);
  transition:background .25s var(--ease),padding .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{top:8px;}
.site-header.is-scrolled .nav-pill{
  background:rgba(12,22,34,.86);
  padding-top:7px;padding-bottom:7px;
  box-shadow:0 22px 44px -26px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;color:#04120F;
  background:linear-gradient(140deg,var(--c-primary),#1FA894);
  box-shadow:0 0 0 1px rgba(53,224,200,.45), 0 10px 22px -12px rgba(53,224,200,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-size:15px;letter-spacing:.02em;color:var(--c-text);}
.brand-text small{font-size:11px;color:var(--c-text-3);letter-spacing:.16em;margin-top:2px;}
.nav-list{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
}
.nav-link{
  position:relative;display:block;
  padding:8px 11px;border-radius:var(--r-pill);
  font-size:14px;color:var(--c-text-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.06);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;
  width:4px;height:4px;border-radius:50%;
  background:var(--c-primary);transform:translateX(-50%);
  box-shadow:0 0 10px rgba(53,224,200,.9);
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line-2);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{
  display:block;width:16px;height:2px;border-radius:2px;
  background:var(--c-text);margin:3px auto;transition:transform .25s var(--ease),opacity .25s var(--ease);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:scale(.985);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{
  color:#04120F;
  background:linear-gradient(135deg,var(--c-primary),#28C6B2);
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{background:linear-gradient(135deg,var(--c-primary-hover),var(--c-primary));color:#04120F;box-shadow:0 0 0 1px rgba(87,239,217,.6),0 16px 36px -10px rgba(53,224,200,.55);}
.btn-ghost{
  color:var(--c-text);background:transparent;border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{border-color:rgba(53,224,200,.55);color:var(--c-primary);background:rgba(53,224,200,.06);}
.btn-block{width:100%;}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding-top:150px;padding-bottom:72px;
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(100deg, rgba(7,12,20,.96) 6%, rgba(7,12,20,.86) 40%, rgba(7,12,20,.42) 72%, rgba(7,12,20,.72) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;
  opacity:.9;
  z-index:0;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 12% 20%, rgba(53,224,200,.16), transparent 68%),
    radial-gradient(420px 260px at 88% 4%, rgba(124,107,255,.16), transparent 70%);
  pointer-events:none;z-index:1;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.crumbs a{color:var(--c-text-2);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:var(--c-text-3);}
.crumbs .now{color:var(--c-text-2);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.28);
  margin-bottom:18px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(53,224,200,.9);}
.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.2;max-width:760px;
}
.page-hero .lede{
  margin-top:16px;max-width:640px;
  font-size:16px;color:var(--c-text-2);
}
.hero-meta{
  display:flex;gap:10px;flex-wrap:wrap;margin-top:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
a.chip:hover{color:var(--c-primary);border-color:rgba(53,224,200,.45);background:rgba(53,224,200,.08);}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
  padding:34px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--c-line);}
.feature-row.is-flip .feature-media{order:2;}
.feature-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line-2);
  box-shadow:var(--sh-card);
  aspect-ratio:16/11;
}
.feature-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,.06) 0%,rgba(7,12,20,.62) 100%);
}
.feature-row:hover .feature-media img{transform:scale(1.04);}
.media-label{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--c-text);
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(7,12,20,.62);
  border:1px solid var(--c-line-2);
  backdrop-filter:blur(8px);
}
.feature-body .badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--c-coral);background:rgba(255,122,89,.12);
  margin-bottom:14px;
}
.feature-body .badge.is-violet{color:var(--c-violet);background:rgba(124,107,255,.14);}
.feature-body h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;}
.feature-body p{
  margin-top:14px;font-size:15px;color:var(--c-text-2);line-height:1.85;
}
.tick-list{margin-top:18px;display:grid;gap:9px;}
.tick-list li{
  position:relative;padding-left:22px;
  font-size:14px;color:var(--c-text-2);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;
  background:rgba(53,224,200,.16);
  box-shadow:inset 0 0 0 1px rgba(53,224,200,.7);
}

/* ---------- 查看顺序 ---------- */
.steps-panel{
  border-radius:var(--r-card);
  background:linear-gradient(180deg,var(--c-panel-up),var(--c-panel));
  border:1px solid var(--c-line-2);
  box-shadow:var(--sh-card);
  padding:38px 34px;
}
.steps{display:grid;gap:0;margin-top:8px;}
.step{
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:18px;padding:22px 0;
  border-bottom:1px dashed var(--c-line);
}
.step:last-child{border-bottom:none;padding-bottom:4px;}
.step-num{
  font-size:26px;font-weight:700;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(53,224,200,.55);
  letter-spacing:.02em;
}
.step h3{font-size:17px;font-weight:600;}
.step p{margin-top:6px;font-size:14px;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--r-img);
  background:var(--c-panel);
  border:1px solid var(--c-line-2);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(53,224,200,.32);background:var(--c-panel-up);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  font-size:16px;font-weight:600;line-height:1;
  color:var(--c-primary);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.3);
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{
  padding:0 20px 20px;
  font-size:15px;color:var(--c-text-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:var(--r-card);
  padding:40px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(16,28,40,.72),rgba(18,32,46,.5));
  border:1px solid var(--c-line-2);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-card);
}
.cta-bar::before{
  content:"";position:absolute;right:-90px;top:-120px;
  width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,200,.20),transparent 66%);
  pointer-events:none;
}
.cta-bar h2{font-size:clamp(20px,2.4vw,28px);position:relative;}
.cta-bar p{margin-top:10px;font-size:15px;color:var(--c-text-2);position:relative;max-width:560px;}
.cta-bar .btn{position:relative;}

/* ---------- 相关内容 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rel-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);overflow:hidden;
  background:var(--c-panel);
  border:1px solid var(--c-line-2);
  box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 24px 48px -26px rgba(0,0,0,.95),0 0 0 1px rgba(53,224,200,.18);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:16px;line-height:1.45;}
.rel-body p{font-size:13.5px;color:var(--c-text-2);line-height:1.75;}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--c-text-3);}
.rel-foot .arw{color:var(--c-primary);transition:transform .2s var(--ease);}
.rel-card:hover .rel-foot .arw{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp-section);
  border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(12,22,34,.6),rgba(7,12,20,.9));
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--c-text-2);max-width:280px;}
.footer-quick{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:16px;}
.footer-quick a{font-size:13.5px;color:var(--c-text-3);transition:color .2s var(--ease);}
.footer-quick a:hover{color:var(--c-primary);}
.footer-col h4,.footer-note h4{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:14px;color:var(--c-text-2);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--c-primary);}
.footer-note p{font-size:13px;color:var(--c-text-3);line-height:1.85;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 24px 26px;
  border-top:1px solid var(--c-line);
}
.footer-bottom p{font-size:13px;color:var(--c-text-3);}
.to-top{
  font-size:13px;color:var(--c-text-2);
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.to-top:hover{color:var(--c-primary);border-color:rgba(53,224,200,.45);background:rgba(53,224,200,.08);}

/* ---------- 断点 ---------- */
@media (max-width:1024px){
  :root{--sp-section:64px;}
  .feature-row{gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-note{grid-column:1 / -1;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  :root{--sp-section:48px;}
  .container{padding-left:18px;padding-right:18px;}
  .site-header{padding:0 14px;top:10px;}
  .nav-pill{padding:9px 12px;}
  .nav-toggle{display:grid;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-list{
    position:fixed;left:0;right:0;top:0;
    height:100vh;height:100dvh;
    flex-direction:column;align-items:stretch;justify-content:center;
    gap:6px;padding:88px 28px 40px;
    background:rgba(7,12,20,.94);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    border-bottom:1px solid var(--c-line);
    transform:translateY(-102%);
    transition:transform .32s var(--ease);
    z-index:-1;
    overflow-y:auto;
  }
  .nav-list.is-open{transform:translateY(0);}
  .nav-link{font-size:19px;padding:14px 8px;border-radius:var(--r-sm);}
  .nav-link.is-active::after{left:8px;bottom:12px;transform:none;}
  .page-hero{padding-top:118px;padding-bottom:52px;}
  .feature-row{grid-template-columns:1fr;gap:22px;padding:26px 0;}
  .feature-row.is-flip .feature-media{order:0;}
  .feature-media{aspect-ratio:16/9;}
  .steps-panel{padding:26px 20px;}
  .step{grid-template-columns:48px minmax(0,1fr);gap:14px;}
  .cta-bar{padding:28px 24px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:560px){
  body{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .feature-body h2{font-size:19px;}
  .btn{padding:12px 20px;font-size:14px;}
  .btn-block-sm{width:100%;}
  .crumbs{font-size:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --bg:#070C14;
  --bg-soft:#08111b;
  --panel:#0C1622;
  --panel-up:#12202E;
  --primary:#35E0C8;
  --primary-hover:#57EFD9;
  --primary-active:#24BFA9;
  --coral:#FF7A59;
  --violet:#7C6BFF;
  --text:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6E8194;
  --line:rgba(255,255,255,.08);
  --card-border:rgba(255,255,255,.10);
  --glass:rgba(16,28,40,.55);
  --glass-strong:rgba(10,18,28,.86);
  --r-card:18px;
  --r-sm:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-inner:inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(53,224,200,.5),0 12px 32px -10px rgba(53,224,200,.45);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sp-7:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(620px 420px at 10% -6%,rgba(53,224,200,.11),transparent 70%),
    radial-gradient(720px 520px at 94% 6%,rgba(124,107,255,.10),transparent 72%),
    linear-gradient(180deg,#070C14 0%,#08111b 55%,#070C14 100%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0}
h1{font-size:clamp(28px,3.6vw,40px);line-height:1.2}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:20px;line-height:1.4;font-weight:600}
::selection{background:rgba(53,224,200,.3);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:8px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
/* ============ header / nav ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  display:flex;
  justify-content:center;
  padding:16px 24px;
  transition:padding .28s var(--ease);
}
.site-header.is-scrolled{padding:8px 24px}
.nav-pill{
  width:100%;
  max-width:1120px;
  display:flex;
  align-items:center;
  gap:var(--sp-2);
  padding:10px 12px 10px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--card-border);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9),var(--shadow-inner);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled .nav-pill{
  background:var(--glass-strong);
  box-shadow:0 20px 44px -24px rgba(0,0,0,.95),var(--shadow-inner);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  font-weight:700;
  font-size:16px;
  color:#04211d;
  background:linear-gradient(135deg,var(--primary),#22c3b0);
  box-shadow:0 0 0 1px rgba(53,224,200,.45),0 10px 24px -12px rgba(53,224,200,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.16em;margin-top:3px}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 11px;
  border-radius:var(--r-pill);
  font-size:13.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:1px;
  width:4px;height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(53,224,200,.9);
}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  margin-left:auto;
  border-radius:50%;
  border:1px solid var(--card-border);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  padding:0;
  place-items:center;
  gap:4px;
  grid-auto-flow:row;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#22c3b0);
  color:#04211d;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#04211d;
  background:linear-gradient(135deg,var(--primary-hover),#2fd4bf);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(87,239,217,.6),0 16px 36px -12px rgba(53,224,200,.55);
}
.btn-primary:active{
  transform:scale(.985);
  background:linear-gradient(135deg,var(--primary-active),#1fa896);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(53,224,200,.45);
  color:var(--primary);
}
.btn-ghost:hover{
  background:rgba(53,224,200,.10);
  border-color:var(--primary);
  color:var(--primary-hover);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:scale(.985)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
/* ============ badges / chips ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1;
  background:rgba(53,224,200,.12);
  color:var(--primary);
  border:1px solid rgba(53,224,200,.22);
}
.badge.is-coral{
  background:rgba(255,122,89,.12);
  color:var(--coral);
  border-color:rgba(255,122,89,.24);
}
.badge.is-violet{
  background:rgba(124,107,255,.14);
  color:#A99BFF;
  border-color:rgba(124,107,255,.26);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--primary);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--card-border);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  font-size:13px;
  font-weight:500;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(53,224,200,.4)}
.chip.is-active{
  background:rgba(53,224,200,.12);
  border-color:rgba(53,224,200,.5);
  color:var(--primary);
}
.chip:active{transform:scale(.98)}
/* ============ page hero ============ */
.page-hero{
  position:relative;
  padding:152px 0 76px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.36;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    linear-gradient(90deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.88) 46%,rgba(7,12,20,.60) 100%),
    linear-gradient(180deg,rgba(7,12,20,.55) 0%,rgba(7,12,20,.30) 45%,rgba(7,12,20,.96) 100%);
}
.page-hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{margin-bottom:26px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--text-3);font-size:13px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"]{color:var(--text-2)}
.page-hero h1{margin:14px 0 0;font-size:clamp(28px,3.6vw,40px)}
.page-hero-lead{
  margin-top:16px;
  max-width:600px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:34px;
}
/* ============ sections ============ */
.section{padding:var(--sp-7) 0;position:relative;z-index:1}
.section.is-tight{padding:var(--sp-6) 0}
.section-divider{border-top:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:var(--sp-5)}
.sec-head h2{margin-top:12px}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}
/* ============ compare table ============ */
.compare-toolbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
.table-hint{font-size:13.5px;color:var(--text-3)}
.view-switch{display:flex;gap:8px}
.cmp-wrap{
  border:1px solid var(--card-border);
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(18,32,46,.92) 0%,rgba(12,22,34,.92) 100%);
  box-shadow:var(--shadow-card),var(--shadow-inner);
  overflow:hidden;
}
.cmp{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  font-variant-numeric:tabular-nums;
}
.cmp caption{text-align:left}
.cmp thead th{
  background:rgba(53,224,200,.08);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid rgba(53,224,200,.30);
  white-space:nowrap;
}
.cmp tbody td{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  vertical-align:top;
  line-height:1.75;
}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody tr{transition:background .2s var(--ease)}
.cmp tbody tr:hover{background:rgba(53,224,200,.045)}
.cmp .mod-name{
  display:block;
  color:var(--text);
  font-weight:600;
  font-size:15.5px;
}
.cmp .mod-sub{
  display:block;
  margin-top:6px;
  font-size:12.5px;
  color:var(--text-3);
}
.cmp .mod-sub .badge{margin-top:8px}
.cmp td[data-label]::before{display:none}
/* card view (desktop toggle) */
.cmp-wrap.is-cards .cmp thead{display:none}
.cmp-wrap.is-cards .cmp,
.cmp-wrap.is-cards .cmp tbody,
.cmp-wrap.is-cards .cmp tr,
.cmp-wrap.is-cards .cmp td{display:block;width:100%}
.cmp-wrap.is-cards .cmp tr{
  border:1px solid var(--card-border);
  border-radius:var(--r-img);
  background:rgba(18,32,46,.85);
  margin:16px;
  padding:6px 0 14px;
  box-shadow:var(--shadow-inner);
}
.cmp-wrap.is-cards .cmp tr:hover{background:rgba(24,42,60,.9)}
.cmp-wrap.is-cards .cmp td{
  border:0;
  padding:6px 18px;
}
.cmp-wrap.is-cards .cmp td[data-label]::before{
  content:attr(data-label);
  display:block;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--text-3);
  margin-bottom:2px;
}
.cmp-wrap.is-cards .cmp td:first-child{padding-top:16px}
/* ============ cards ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-3)}
.card{
  border:1px solid var(--card-border);
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(18,32,46,.9),rgba(12,22,34,.94));
  padding:28px 26px;
  box-shadow:var(--shadow-card),var(--shadow-inner);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.4);
  box-shadow:0 24px 48px -26px rgba(0,0,0,.9),var(--shadow-inner);
}
.card h3{margin-bottom:10px}
.card p{color:var(--text-2);font-size:15px;line-height:1.8}
.card-icon{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  margin-bottom:18px;
  font-size:15px;
  font-weight:700;
  color:var(--primary);
  background:rgba(53,224,200,.10);
  border:1px solid rgba(53,224,200,.24);
  font-variant-numeric:tabular-nums;
}
/* ============ steps ============ */
.steps{display:grid;gap:var(--sp-3);max-width:900px}
.step{
  display:grid;
  grid-template-columns:96px minmax(0,1fr);
  gap:var(--sp-3);
  padding:24px 26px;
  border:1px solid var(--card-border);
  border-radius:var(--r-card);
  background:rgba(12,22,34,.72);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.step:hover{border-color:rgba(53,224,200,.36);background:rgba(16,28,40,.85)}
.step-num{
  font-size:40px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.4px rgba(53,224,200,.55);
  font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:18px;margin-bottom:8px}
.step-body p{color:var(--text-2);font-size:15px}
/* ============ split block ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:var(--sp-5);
  align-items:center;
}
.split-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--card-border);
  box-shadow:var(--shadow-card),var(--shadow-inner);
  position:relative;
}
.split-media img{
  width:100%;
  height:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  display:block;
}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(7,12,20,.10),rgba(7,12,20,.55));
  pointer-events:none;
}
.split-body h2{margin-top:12px}
.split-body p{margin-top:16px;color:var(--text-2);font-size:15.5px}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-2);
}
.check-list li::before{
  content:"✓";
  flex:0 0 auto;
  width:22px;height:22px;
  display:grid;place-items:center;
  margin-top:3px;
  border-radius:50%;
  font-size:12px;
  font-weight:700;
  color:#04211d;
  background:linear-gradient(135deg,var(--primary),#22c3b0);
}
/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--card-border);
  border-radius:var(--r-img);
  background:rgba(12,22,34,.82);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{
  border-color:rgba(53,224,200,.32);
  background:rgba(16,28,40,.9);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  font-size:17px;
  font-weight:600;
  color:var(--primary);
  background:rgba(53,224,200,.10);
  border:1px solid rgba(53,224,200,.26);
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
/* ============ CTA ============ */
.cta-panel{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--sp-5);
  align-items:center;
  padding:44px;
  border-radius:26px;
  border:1px solid rgba(53,224,200,.22);
  background:
    radial-gradient(520px 260px at 6% 0%,rgba(53,224,200,.14),transparent 70%),
    radial-gradient(420px 240px at 96% 100%,rgba(124,107,255,.14),transparent 72%),
    rgba(16,28,40,.62);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card),var(--shadow-inner);
}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px)}
.cta-copy p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:13.5px;color:var(--text-2)}
.cta-form input{
  width:100%;
  padding:13px 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--card-border);
  background:rgba(7,12,20,.72);
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 6px rgba(53,224,200,.12);
}
.cta-form .btn{justify-self:start;margin-top:6px}
.form-msg{font-size:13.5px;color:var(--primary);min-height:20px}
/* ============ related ============ */
.rel-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--card-border);
  border-radius:var(--r-card);
  overflow:hidden;
  background:linear-gradient(180deg,rgba(18,32,46,.9),rgba(12,22,34,.94));
  box-shadow:var(--shadow-card),var(--shadow-inner);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.4);
  box-shadow:0 24px 48px -26px rgba(0,0,0,.9),var(--shadow-inner);
}
.rel-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(53,224,200,.18),rgba(124,107,255,.18));
}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-media img{transform:scale(1.04)}
.rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17.5px}
.rel-body p{font-size:14.5px;color:var(--text-2);line-height:1.75}
.rel-link{
  margin-top:auto;
  font-size:13.5px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.rel-card:hover .rel-link{gap:10px}
.rel-link::after{content:"→";transition:transform .2s var(--ease)}
/* ============ footer ============ */
.site-footer{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  padding:var(--sp-6) 0 0;
  background:linear-gradient(180deg,rgba(8,13,21,0) 0%,rgba(6,10,17,.9) 40%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--sp-4);
  padding-bottom:var(--sp-5);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:280px;line-height:1.8}
.footer-quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-quick a{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--card-border);
  background:rgba(255,255,255,.03);
  font-size:12.5px;
  color:var(--text-2);
  transition:all .2s var(--ease);
}
.footer-quick a:hover{border-color:rgba(53,224,200,.45);color:var(--primary);background:rgba(53,224,200,.08)}
.footer-col h4,.footer-note h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--text-3);
  margin-bottom:16px;
  text-transform:uppercase;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-note p{font-size:13px;line-height:1.85;color:var(--text-3)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:22px 24px 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.to-top{font-size:13px;color:var(--text-2)}
.to-top:hover{color:var(--primary)}
/* ============ responsive ============ */
@media (max-width:1280px){
  .nav-link{padding:8px 9px;font-size:13px}
}
@media (max-width:1080px){
  .nav-list{gap:0}
  .nav-link{font-size:12.5px;padding:8px 8px}
  .nav-cta{padding:8px 14px;font-size:12.5px}
  .split{grid-template-columns:1fr;gap:var(--sp-4)}
  .split-media{order:-1}
  .cta-panel{grid-template-columns:1fr;padding:34px}
}
@media (max-width:1024px){
  .section{padding:var(--sp-6) 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4)}
}
@media (max-width:960px){
  .site-header{padding:12px 18px}
  .nav-pill{padding:10px 12px 10px 16px}
  .nav-cta{display:none}
  .nav-toggle{display:grid}
  .nav-list{
    position:fixed;
    top:84px;
    left:18px;
    right:18px;
    z-index:130;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:18px;
    border-radius:24px;
    border:1px solid var(--card-border);
    background:rgba(8,15,24,.94);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    backdrop-filter:blur(18px) saturate(120%);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
    display:none;
    max-height:calc(100vh - 110px);
    overflow-y:auto;
  }
  .nav-list.is-open{display:flex}
  .nav-link{
    display:block;
    padding:14px 16px;
    font-size:16px;
    border-radius:14px;
    color:var(--text);
  }
  .nav-link.is-active{background:rgba(53,224,200,.10)}
  .nav-link.is-active::after{display:none}
  .page-hero{padding:132px 0 60px}
}
@media (max-width:820px){
  .cmp thead{display:none}
  .cmp,.cmp tbody,.cmp tr,.cmp td{display:block;width:100%}
  .cmp tbody tr{
    border:1px solid var(--card-border);
    border-radius:var(--r-img);
    background:rgba(18,32,46,.85);
    margin:16px;
    padding:6px 0 14px;
  }
  .cmp tbody td{border:0;padding:6px 18px}
  .cmp td[data-label]::before{
    content:attr(data-label);
    display:block;
    font-size:11.5px;
    font-weight:600;
    letter-spacing:.06em;
    color:var(--text-3);
    margin-bottom:2px;
  }
  .cmp tbody td:first-child{padding-top:16px}
  .cmp-wrap{border:0;background:transparent;box-shadow:none;overflow:visible}
  .cmp-wrap.is-cards .cmp tr{margin:16px 0}
  .cmp tbody tr{margin:16px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:var(--sp-5) 0}
  .sec-head{margin-bottom:var(--sp-4)}
  .grid-3{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;gap:12px;padding:22px}
  .step-num{font-size:32px}
  .cta-panel{padding:26px 22px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-4)}
  .hero-actions .btn{flex:1 1 100%}
  .compare-toolbar{gap:12px}
  .page-hero{padding:124px 0 52px}
  .page-hero-lead{font-size:15px}
}
@media (max-width:560px){
  h2{font-size:22px}
  .card{padding:22px 20px}
  .rel-body{padding:18px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
  .footer-bottom{padding:18px 18px 24px}
  .btn{padding:12px 20px;font-size:14.5px}
  .hero-meta{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg:#070C14;
  --panel:#0C1622;
  --panel-2:#12202E;
  --panel-3:#16283a;
  --text:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6E8194;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --primary:#35E0C8;
  --primary-hover:#57EFD9;
  --primary-active:#24BFA9;
  --primary-soft:rgba(53,224,200,.12);
  --coral:#FF7A59;
  --coral-soft:rgba(255,122,89,.12);
  --violet:#7C6BFF;
  --violet-soft:rgba(124,107,255,.14);
  --glass:rgba(16,28,40,.55);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-card-hover:0 24px 50px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.09);
  --shadow-glow:0 0 0 1px rgba(53,224,200,.5), 0 12px 32px -10px rgba(53,224,200,.45);
  --shadow-glow-hover:0 0 0 1px rgba(87,239,217,.7), 0 16px 38px -10px rgba(53,224,200,.55);
  --container:1200px;
  --gutter:24px;
  --section-y:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1100px 560px at 10% -8%, rgba(53,224,200,.10), transparent 62%),
    radial-gradient(900px 520px at 92% -4%, rgba(124,107,255,.12), transparent 60%),
    linear-gradient(180deg,#070C14 0%,#08111b 42%,#070C14 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section-y) 0}
.section-alt{padding:var(--section-y) 0;background:linear-gradient(180deg,rgba(12,22,34,0) 0%,rgba(12,22,34,.72) 18%,rgba(12,22,34,.72) 82%,rgba(12,22,34,0) 100%)}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:80;padding:16px 0;transition:padding .3s var(--ease)}
.nav-pill{
  width:calc(100% - 48px);max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:14px;
  padding:12px 18px;border-radius:var(--radius-pill);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  box-shadow:var(--shadow-card);
  transition:padding .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{padding:8px 0}
.site-header.is-scrolled .nav-pill{padding:7px 16px;background:rgba(9,16,24,.86);box-shadow:0 20px 44px -28px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.07)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  font-weight:700;font-size:17px;color:#04120f;
  background:linear-gradient(140deg,var(--primary-hover),var(--primary-active));
  box-shadow:0 8px 20px -10px rgba(53,224,200,.8), inset 0 1px 0 rgba(255,255,255,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.16em}
.nav-list{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  position:relative;display:inline-block;white-space:nowrap;
  padding:8px 10px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:4px;height:4px;border-radius:50%;
  background:var(--primary);transform:translate(-50%,6px);opacity:0;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:translate(-50%,0)}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;flex:0 0 auto;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--card-line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  cursor:pointer;
}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-primary{
  color:#04120f;
  background:linear-gradient(135deg,var(--primary-hover),var(--primary-active));
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{box-shadow:var(--shadow-glow-hover);transform:translateY(-2px)}
.btn-primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(36,191,169,.6),0 8px 20px -12px rgba(53,224,200,.5)}
.btn-ghost{
  color:var(--text);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:rgba(53,224,200,.55);color:var(--primary-hover);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.985)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1;
  background:var(--primary-soft);color:var(--primary);
}
.badge-coral{background:var(--coral-soft);color:var(--coral)}
.badge-violet{background:var(--violet-soft);color:#a89dff}
.badge-muted{background:rgba(255,255,255,.06);color:var(--text-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--radius-pill);
  font-size:13.5px;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--card-line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{color:var(--primary);border-color:rgba(53,224,200,.45);background:rgba(53,224,200,.08);transform:translateY(-2px)}
.tag:active{transform:scale(.985)}

/* ===== 页面首屏 ===== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center right;
  opacity:.42;
}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.9) 46%,rgba(7,12,20,.55) 78%,rgba(7,12,20,.78) 100%);
}
.page-hero .hero-inner{position:relative;padding:76px 0 84px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.24)}
.breadcrumb .current{color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.14em;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(53,224,200,.24);
}
.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);line-height:1.24;font-weight:700;
  max-width:760px;
  background:linear-gradient(120deg,#ffffff 0%,#d7ecf5 46%,var(--primary) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{max-width:640px;margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--text-2)}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;max-width:820px}
.hero-stat{
  flex:1 1 200px;min-width:170px;
  padding:16px 20px;border-radius:var(--radius-md);
  background:rgba(16,28,40,.55);
  border:1px solid var(--card-line);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.hero-stat strong{display:block;font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text)}
.hero-stat span{display:block;margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.6}

/* ===== 板块标题 ===== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
.section-head .head-desc{max-width:560px;margin:12px 0 0;color:var(--text-2);font-size:15.5px}
.section-head .head-link{font-size:14px;color:var(--primary);border-bottom:1px solid rgba(53,224,200,.35);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.section-head .head-link:hover{color:var(--primary-hover);border-color:var(--primary-hover)}

/* ===== 卡片网格（不等高） ===== */
.module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.mod-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(170deg,var(--panel-2),var(--panel));
  border:1px solid var(--card-line);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.mod-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:var(--shadow-card-hover)}
.mod-card:active{transform:scale(.995)}
.mod-card.is-wide{grid-column:span 2}
.mod-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(53,224,200,.16),rgba(124,107,255,.16))}
.mod-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.mod-card:hover .mod-media img{transform:scale(1.04)}
.mod-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,20,0) 40%,rgba(7,12,20,.72) 100%)}
.mod-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.mod-body h3{font-size:19px;line-height:1.45;font-weight:600;margin-top:14px}
.mod-body p{margin:12px 0 0;font-size:14.5px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mod-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.mod-link{font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.mod-link span{transition:transform .2s var(--ease)}
.mod-card:hover .mod-link span,.mod-link:hover span{transform:translateX(4px)}
.mod-link:hover{color:var(--primary-hover)}
.mod-meta{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ===== 支持范围 ===== */
.scope-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start}
.scope-list{display:flex;flex-direction:column;gap:16px}
.scope-item{
  display:flex;gap:18px;padding:20px 22px;border-radius:var(--radius-md);
  background:rgba(18,32,46,.7);border:1px solid var(--card-line);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.scope-item:hover{border-color:rgba(53,224,200,.35);transform:translateY(-2px);background:rgba(22,40,58,.8)}
.scope-num{
  flex:0 0 auto;font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1px rgba(53,224,200,.6);line-height:1.2;
}
.scope-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scope-item p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.78}
.scope-panel{
  padding:30px 28px;border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(22,40,58,.9),rgba(12,22,34,.9));
  border:1px solid var(--card-line);box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.scope-panel::before{content:"";position:absolute;width:240px;height:240px;right:-90px;top:-90px;border-radius:50%;background:radial-gradient(circle,rgba(53,224,200,.22),transparent 68%)}
.scope-panel h3{font-size:19px;margin-bottom:14px;position:relative}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:8px;position:relative}
.check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.check-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:6px;border-radius:50%;
  background:var(--primary-soft);
  box-shadow:inset 0 0 0 1px rgba(53,224,200,.5);
  -webkit-mask:radial-gradient(circle at 50% 50%,transparent 0 3px,#000 3px);
          mask:radial-gradient(circle at 50% 50%,transparent 0 3px,#000 3px);
}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--radius-md);overflow:hidden;
  background:rgba(12,22,34,.85);border:1px solid var(--card-line);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(53,224,200,.3);background:rgba(18,32,46,.9)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--primary-soft);transition:transform .28s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .25s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-body p:last-child{margin-bottom:0}

/* ===== 支持表单 ===== */
.support-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start}
.support-intro h2{font-size:clamp(24px,3vw,32px)}
.support-intro p{margin-top:16px;color:var(--text-2);font-size:15.5px}
.mini-list{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.mini-list li{font-size:14.5px;color:var(--text-3);display:flex;gap:10px;align-items:flex-start}
.mini-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:10px}
.support-form{
  padding:30px 28px;border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(18,32,46,.92),rgba(12,22,34,.92));
  border:1px solid var(--card-line);box-shadow:var(--shadow-card);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.is-full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(7,12,20,.85);border:1px solid var(--card-line);
  color:var(--text);font-size:14.5px;line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:118px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 6px rgba(53,224,200,.12);
  background:rgba(9,16,24,.95);
}
.field.is-error input,.field.is-error textarea{border-color:var(--coral);box-shadow:0 0 0 6px rgba(255,122,89,.1)}
.field .err-msg{display:none;font-size:13px;color:var(--coral)}
.field.is-error .err-msg{display:block}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px;flex-wrap:wrap}
.form-hint{font-size:13px;color:var(--text-3);line-height:1.7;max-width:330px}
.form-status{
  margin-top:16px;padding:12px 16px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--primary);background:var(--primary-soft);
  border:1px solid rgba(53,224,200,.3);display:none;
}
.form-status.is-show{display:block}

/* ===== CTA 条 ===== */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 38px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(22,40,58,.92),rgba(12,22,34,.9));
  border:1px solid var(--card-line);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 220px at 12% 120%,rgba(53,224,200,.2),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.6vw,27px);position:relative}
.cta-band p{margin:10px 0 0;color:var(--text-2);font-size:15px;position:relative}
.cta-band .btn{position:relative}

/* ===== 相关内容 ===== */
.rel-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-item{
  display:flex;gap:14px;align-items:center;padding:16px;
  border-radius:var(--radius-md);
  background:rgba(12,22,34,.8);border:1px solid var(--card-line);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.rel-item:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.38);background:rgba(18,32,46,.9)}
.rel-thumb{flex:0 0 auto;width:64px;height:64px;border-radius:var(--radius-sm);overflow:hidden;background:linear-gradient(135deg,rgba(53,224,200,.18),rgba(124,107,255,.18))}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-item h3{font-size:15px;font-weight:600;line-height:1.5}
.rel-item span{display:block;margin-top:4px;font-size:12.5px;color:var(--text-3)}

/* ===== 页脚 ===== */
.site-footer{margin-top:56px;padding-top:64px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(9,16,24,0),rgba(9,16,24,.9) 40%)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:280px}
.footer-quick{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:18px}
.footer-quick a{font-size:13.5px;color:var(--text-3);transition:color .2s var(--ease)}
.footer-quick a:hover{color:var(--primary)}
.footer-col h4,.footer-note h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-note p{font-size:13px;line-height:1.85;color:var(--text-3);margin:0}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid var(--line);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}
.to-top{font-size:13px;color:var(--text-2);transition:color .2s var(--ease)}
.to-top:hover{color:var(--primary)}

/* ===== 响应式 ===== */
@media (max-width:1120px){
  .nav-link{font-size:13px;padding:8px 8px}
  .nav-pill{gap:10px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-note{grid-column:1 / -1}
}
@media (max-width:1024px){
  :root{--section-y:64px}
  .module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mod-card.is-wide{grid-column:span 2}
  .scope-wrap{grid-template-columns:1fr}
  .support-wrap{grid-template-columns:1fr;gap:30px}
  .rel-list{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--section-y:48px;--gutter:18px}
  .site-header{padding:12px 0}
  .nav-pill{width:calc(100% - 24px);padding:10px 14px;gap:10px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-list{
    position:fixed;left:12px;right:12px;top:78px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;border-radius:22px;
    background:rgba(10,18,26,.96);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    border:1px solid var(--card-line);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
    max-height:calc(100vh - 110px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
  }
  .nav-list.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{display:block;padding:13px 14px;font-size:15.5px;border-radius:14px}
  .nav-link.is-active{background:rgba(53,224,200,.1)}
  .nav-link::after{display:none}
  .page-hero .hero-inner{padding:52px 0 60px}
  .hero-lead{font-size:15.5px}
  .hero-stats{gap:12px}
  .hero-stat{flex:1 1 calc(50% - 6px);min-width:0}
  .section-head{margin-bottom:30px}
  .module-grid{grid-template-columns:1fr}
  .mod-card.is-wide{grid-column:span 1}
  .cta-band{padding:26px 22px}
  .cta-band .btn{width:100%}
  .rel-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .footer-note{grid-column:1 / -1}
  .form-grid{grid-template-columns:1fr}
  .support-form{padding:24px 20px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .brand-text strong{font-size:15px}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px}
  .hero-stat strong{font-size:15.5px}
  .mod-body{padding:18px 18px 16px}
  .faq-item summary{padding:15px 16px;font-size:15px}
  .faq-body{padding:0 16px 16px}
  .btn{width:100%;padding:12px 20px}
  .btn-sm{width:auto}
  .form-foot .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category5 */
:root{
  --primary:#35E0C8;
  --primary-hover:#57EFD9;
  --primary-active:#24BFA9;
  --accent:#FF7A59;
  --accent-2:#7C6BFF;
  --bg:#070C14;
  --panel:#0C1622;
  --panel-2:#12202E;
  --text:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6E8194;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.10);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(53,224,200,.5),0 12px 32px -10px rgba(53,224,200,.45);
  --container:1200px;
  --pad-x:24px;
  --section-y:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad-x)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);font-weight:600;font-size:15px;padding:13px 26px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:scale(.985)}
.btn-primary{background:linear-gradient(135deg,var(--primary),#1FB6C4);color:#04120F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),#25C6D2);box-shadow:0 0 0 1px rgba(87,239,217,.6),0 16px 36px -10px rgba(53,224,200,.55)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(53,224,200,.45);color:var(--primary);background:rgba(53,224,200,.06)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.badge{display:inline-flex;align-items:center;padding:5px 11px;border-radius:var(--pill);font-size:12px;font-weight:600;letter-spacing:.02em;background:rgba(53,224,200,.12);color:var(--primary)}
.badge-warm{background:rgba(255,122,89,.12);color:var(--accent)}
.link-more{font-size:14px;font-weight:600;color:var(--primary);transition:color .2s var(--ease)}
.link-more:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;padding:16px var(--pad-x)}
.nav-pill{
  max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  background:rgba(16,28,40,.55);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line-strong);
  border-radius:var(--pill);
  transition:padding .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease),border-radius .25s var(--ease);
}
.site-header.is-scrolled .nav-pill{
  padding:6px 10px 6px 16px;
  background:rgba(9,17,27,.9);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-size:16px;font-weight:700;color:#04120F;
  background:linear-gradient(135deg,var(--primary),#1FA9C9);
  box-shadow:0 0 18px rgba(53,224,200,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:15px;letter-spacing:.02em;color:var(--text)}
.brand-text small{font-size:10px;letter-spacing:.16em;color:var(--text-3)}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 11px;border-radius:var(--pill);
  font-size:13.5px;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;text-decoration-color:var(--primary)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;width:4px;height:4px;border-radius:50%;
  background:var(--primary);transform:translateX(-50%);box-shadow:0 0 8px var(--primary);
}
.nav-cta{flex-shrink:0}
.nav-toggle{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line-strong);
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(53,224,200,.45)}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .2s var(--ease)}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 页面顶部 ---------- */
.page-hero{position:relative;padding:150px 0 64px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(680px 340px at 18% 22%,#000,transparent 82%);
  mask-image:radial-gradient(680px 340px at 18% 22%,#000,transparent 82%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(900px 420px at 12% 0%,rgba(53,224,200,.16),transparent 68%),
             radial-gradient(700px 380px at 88% 18%,rgba(124,107,255,.14),transparent 72%),
             linear-gradient(180deg,rgba(7,12,20,.62),rgba(7,12,20,.94) 88%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--primary);font-weight:600}
.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);line-height:1.22;font-weight:700;letter-spacing:.01em;
  max-width:760px;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.page-lead{margin-top:16px;font-size:16px;color:var(--text-2);max-width:640px}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-tag{
  display:inline-flex;align-items:center;gap:8px;padding:9px 17px;border-radius:var(--pill);
  border:1px solid var(--line-strong);background:rgba(16,28,40,.55);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  font-size:14px;color:var(--text-2);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.anchor-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(53,224,200,.8)}
.anchor-tag:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.45);color:var(--primary);background:rgba(53,224,200,.07)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:44px;
  background:var(--line);border:1px solid var(--line-strong);border-radius:var(--radius-md);overflow:hidden;
}
.stat{background:rgba(10,19,29,.72);padding:18px 20px}
.stat b{display:block;font-size:22px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.3}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}
.stat-note{margin-top:12px;font-size:12.5px;color:var(--text-3)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(12,22,34,.55),rgba(7,12,20,0) 78%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.25;font-weight:700}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}

/* ---------- 流程速览 ---------- */
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-step{
  position:relative;padding:24px 22px 26px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.flow-step:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 26px 48px -28px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.06)}
.flow-step .num{
  display:block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:10px;font-size:17px;font-weight:600;line-height:1.4;color:var(--text)}
.flow-step p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.75}
.flow-step .tie{position:absolute;left:22px;bottom:14px;width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent);opacity:.6}

/* ---------- FAQ ---------- */
.faq-block{display:grid;grid-template-columns:260px 1fr;gap:44px;align-items:start;padding-top:12px}
.faq-block + .faq-block{margin-top:52px;padding-top:44px;border-top:1px solid var(--line)}
.faq-side{position:sticky;top:112px}
.faq-side h3{font-size:20px;font-weight:600;color:var(--text)}
.faq-side h3::after{content:"";display:block;width:34px;height:3px;border-radius:3px;margin-top:12px;background:linear-gradient(90deg,var(--primary),rgba(53,224,200,0))}
.faq-side p{margin-top:14px;font-size:14px;color:var(--text-3);line-height:1.75}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(53,224,200,.28)}
.faq-item[open]{border-color:rgba(53,224,200,.32);background:var(--panel-2);box-shadow:var(--shadow-card)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-icon{
  flex:0 0 auto;position:relative;width:24px;height:24px;border-radius:var(--pill);
  border:1px solid var(--line-strong);
  transition:transform .25s var(--ease),border-color .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;border-radius:2px;background:var(--primary);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s var(--ease)}
.faq-item[open] .faq-icon{border-color:rgba(53,224,200,.5);transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-body p + p{margin-top:10px}

/* ---------- CTA 条 ---------- */
.cta-strip{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:32px 36px;border-radius:var(--radius-lg);border:1px solid var(--line-strong);
  background:rgba(16,28,40,.6);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.cta-strip::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,200,.18),transparent 68%);pointer-events:none;
}
.cta-strip h2{position:relative;font-size:clamp(20px,2.4vw,26px);line-height:1.3;font-weight:700}
.cta-strip p{position:relative;margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:520px}
.cta-strip .btn{position:relative}

/* ---------- 相关内容 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 26px 50px -28px rgba(0,0,0,.95)}
.rel-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(53,224,200,.18),rgba(124,107,255,.16))}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rel-card:hover .rel-media img{transform:scale(1.04)}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.4;color:var(--text)}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.rel-more{margin-top:auto;padding-top:6px;font-size:13.5px;font-weight:600;color:var(--primary);transition:transform .2s var(--ease)}
.rel-card:hover .rel-more{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:64px 0 0;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.65),rgba(7,12,20,1));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:280px}
.footer-quick{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:16px}
.footer-quick a{font-size:13.5px;color:var(--text-3);transition:color .2s var(--ease)}
.footer-quick a:hover{color:var(--primary)}
.footer-col h4,.footer-note h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.footer-note p{font-size:13px;line-height:1.85;color:var(--text-3) 	;max-width:320px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding:22px 0 28px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{font-size:13px;color:var(--text-2);transition:color .2s var(--ease)}
.to-top:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  :root{--container:1120px}
}
@media (max-width:1024px){
  :root{--section-y:64px}
  .faq-block{grid-template-columns:1fr;gap:22px}
  .faq-side{position:static}
  .faq-side p{max-width:560px}
  .flow-steps{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:960px){
  .nav-pill{flex-wrap:wrap;border-radius:22px;padding:10px 12px;gap:10px}
  .brand{flex:1 1 auto}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:inline-flex;padding:8px 15px;font-size:13px}
  .nav-list{
    display:none;flex-basis:100%;flex-direction:column;align-items:stretch;gap:2px;
    margin-left:0;padding:6px 0 2px;border-top:1px solid var(--line);
  }
  .site-header.nav-open .nav-list{display:flex}
  .nav-link{display:block;padding:12px 10px;border-radius:12px;font-size:15px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(53,224,200,.08)}
}
@media (max-width:768px){
  :root{--section-y:48px;--pad-x:18px}
  .page-hero{padding:132px 0 48px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .flow-steps{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-strip{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-note p{max-width:none}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .page-hero h1{font-size:26px}
  .page-lead{font-size:15px}
  .btn{width:100%}
  .nav-cta{width:auto}
  .cta-strip .btn{width:100%}
  .stat{padding:16px}
  .stat b{font-size:19px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-body{padding:0 16px 18px}
  .section-head{margin-bottom:26px}
}

/* roulang page: category6 */
:root{
  --c-bg:#070C14;
  --c-panel:#0C1622;
  --c-panel-2:#12202E;
  --c-primary:#35E0C8;
  --c-primary-hover:#57EFD9;
  --c-primary-active:#24BFA9;
  --c-coral:#FF7A59;
  --c-violet:#7C6BFF;
  --t-main:#EAF2F8;
  --t-sub:#A9BACB;
  --t-mute:#6E8194;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.10);
  --r-card:18px;
  --r-sm:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(53,224,200,.5),0 12px 32px -10px rgba(53,224,200,.45);
  --container:1200px;
  --section-y:88px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t-main);
  background:
    radial-gradient(900px 520px at 88% -10%,rgba(124,107,255,.14),transparent 60%),
    radial-gradient(760px 460px at 4% 8%,rgba(53,224,200,.10),transparent 62%),
    var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(53,224,200,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:120;
  display:flex;justify-content:center;padding:0 16px;
  transition:top .25s ease;
}
.nav-pill{
  width:100%;max-width:1120px;
  display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(16,28,40,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),var(--shadow-inset);
  transition:padding .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled .nav-pill{
  padding:6px 12px 6px 16px;
  background:rgba(9,17,27,.9);
  border-color:rgba(255,255,255,.14);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;position:relative;z-index:3}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:700;font-size:16px;color:#04120f;
  background:linear-gradient(140deg,var(--c-primary),#1ea7c9);
  box-shadow:0 8px 20px -10px rgba(53,224,200,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:15px;letter-spacing:.02em;font-weight:700}
.brand-text small{font-size:10.5px;letter-spacing:.18em;color:var(--t-mute)}
.nav-list{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
}
.nav-link{
  display:inline-block;position:relative;
  padding:8px 10px;border-radius:var(--r-pill);
  font-size:13px;color:var(--t-sub);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--t-main);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--c-primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;
  width:4px;height:4px;border-radius:50%;
  transform:translateX(-50%);
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(53,224,200,.95);
}
.nav-cta{margin-left:6px;flex:0 0 auto}
.nav-toggle{
  display:none;position:relative;z-index:3;
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;flex:0 0 auto;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--t-main);transition:transform .25s ease,opacity .25s ease}
.nav-pill.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-pill.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-pill.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:scale(.985)}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary),#25c6d6);
  color:#04120f;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--c-primary-hover),#3ad6e4);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(87,239,217,.6),0 18px 38px -14px rgba(53,224,200,.6);
}
.btn-ghost{
  border-color:rgba(255,255,255,.22);
  color:var(--t-main);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:rgba(53,224,200,.55);color:var(--c-primary);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-block{width:100%}

/* ============ 首屏 ============ */
.hero{position:relative;padding:154px 0 72px;overflow:hidden;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.5;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(100deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.9) 42%,rgba(7,12,20,.62) 100%),
    radial-gradient(circle at 82% 18%,rgba(53,224,200,.2),transparent 56%);
}
.hero-inner{max-width:780px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-mute);margin-bottom:22px}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{opacity:.45}
.breadcrumb [aria-current]{color:var(--t-sub)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--c-primary);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.24);
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px var(--c-primary)}
.hero h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.24;font-weight:700;letter-spacing:.01em;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{font-size:16px;color:var(--t-sub);max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px}

/* 数据条 */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border-radius:var(--r-card);
  background:rgba(16,28,40,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),var(--shadow-inset);
  overflow:hidden;
}
.stat{padding:22px 20px}
.stat + .stat{border-left:1px solid var(--line)}
.stat-num{display:block;font-size:26px;font-weight:700;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--t-mute)}

/* ============ 区块基础 ============ */
.section{padding:var(--section-y) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(12,22,34,.65),rgba(7,12,20,0) 78%)}
.section-head{max-width:720px;margin-bottom:44px}
.section-kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--c-primary);margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:700;
  margin-bottom:12px;
}
.section-head p{font-size:15.5px;color:var(--t-sub)}

/* ============ 流程步骤条 ============ */
.flow-wrap{
  padding:34px 28px 30px;
  border-radius:var(--r-card);
  background:var(--c-panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),var(--shadow-inset);
}
.flow-nodes{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.flow-node{position:relative;padding-top:44px;text-align:center}
.flow-node::before{
  content:attr(data-step);
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;
  background:var(--c-panel-2);
  border:1px solid var(--line-strong);
  color:var(--t-sub);
  z-index:1;
}
.flow-node::after{
  content:"";position:absolute;top:16px;left:calc(50% + 24px);
  width:calc(100% - 48px);height:1px;
  background:linear-gradient(90deg,rgba(53,224,200,.45),rgba(53,224,200,.08));
}
.flow-node:last-child::after{display:none}
.flow-node.is-done::before{
  background:linear-gradient(140deg,var(--c-primary),#1ea7c9);
  color:#04120f;border-color:transparent;
  box-shadow:0 6px 16px -8px rgba(53,224,200,.9);
}
.flow-node.is-current::before{
  border-color:var(--c-primary);color:var(--c-primary);
  box-shadow:0 0 0 6px rgba(53,224,200,.1);
}
.flow-node .node-title{display:block;font-size:14px;font-weight:600;color:var(--t-main)}
.flow-node .node-sub{display:block;margin-top:4px;font-size:12.5px;color:var(--t-mute);line-height:1.6}

/* ============ 步骤详情 ============ */
.step-list{margin-top:8px}
.step-detail{
  display:grid;grid-template-columns:78px 1fr;gap:26px;
  padding:32px 0;
  border-top:1px solid var(--line);
}
.step-detail:first-child{border-top:none}
.step-num{
  font-size:34px;font-weight:700;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(53,224,200,.6);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.step-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.step-body > p{font-size:15.5px;color:var(--t-sub);margin-bottom:16px;max-width:760px}
.check-list{display:grid;gap:8px;max-width:760px}
.check-list li{
  position:relative;padding-left:20px;
  font-size:14.5px;color:var(--t-sub);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(53,224,200,.7);
}

/* ============ 通道卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  padding:26px 24px;
  border-radius:var(--r-card);
  background:var(--c-panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),var(--shadow-inset);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),border-color .2s ease,box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.4);
  box-shadow:0 26px 50px -26px rgba(0,0,0,.9),0 0 0 1px rgba(53,224,200,.16);
}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1;
  color:var(--c-primary);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.2);
}
.badge-warn{
  color:var(--c-coral);
  background:rgba(255,122,89,.12);
  border-color:rgba(255,122,89,.22);
}
.badge-soft{
  color:#B9AFFF;
  background:rgba(124,107,255,.14);
  border-color:rgba(124,107,255,.24);
}
.card-icon{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-size:15px;font-weight:700;color:var(--c-primary);
  background:rgba(53,224,200,.1);
  border:1px solid rgba(53,224,200,.18);
}
.card h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--t-sub);margin-bottom:12px}
.card .mini-list{display:grid;gap:6px;margin-bottom:18px}
.card .mini-list li{font-size:13.5px;color:var(--t-mute);padding-left:14px;position:relative;line-height:1.7}
.card .mini-list li::before{content:"";position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:rgba(169,186,203,.6)}
.card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  transition:gap .2s ease,color .2s ease;
}
.link-arrow .arw{transition:transform .2s ease}
.link-arrow:hover{color:var(--c-primary-hover)}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ============ 图文 / 材料核验 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,.05) 40%,rgba(7,12,20,.72) 100%);
  pointer-events:none;
}
.split-media .media-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  font-size:12.5px;color:var(--t-main);
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(16,28,40,.72);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);
}
.split-body h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;margin-bottom:14px}
.split-body > p{font-size:15.5px;color:var(--t-sub);margin-bottom:24px}
.check-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.check-col h4{
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--t-mute);margin-bottom:12px;
}
.check-col ul{display:grid;gap:9px}
.check-col li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--t-sub);line-height:1.7;
}
.check-col li::before{
  content:"";position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;
  background:var(--c-primary);
}
.check-col.muted li::before{background:rgba(110,129,148,.85)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border-radius:14px;
  background:var(--c-panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-inset);
  transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{
  border-color:rgba(53,224,200,.3);
  background:var(--c-panel-2);
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--t-main);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:20px;height:20px;border-radius:50%;
  border:1px solid rgba(53,224,200,.4);
  transition:transform .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;
  background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:9px;height:1.5px}
.faq-icon::after{width:1.5px;height:9px;transition:opacity .25s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:rgba(53,224,200,.75)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--t-sub);line-height:1.85;max-width:760px}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:34px 36px;
  border-radius:var(--r-card);
  background:
    radial-gradient(560px 220px at 8% 0%,rgba(53,224,200,.16),transparent 68%),
    rgba(16,28,40,.6);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid rgba(53,224,200,.22);
  box-shadow:var(--shadow-card),var(--shadow-inset);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;margin-bottom:8px}
.cta-bar p{font-size:14.5px;color:var(--t-sub)}
.cta-bar .btn{flex:0 0 auto}

/* ============ 相关内容 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--c-panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-inset);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),border-color .2s ease;
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4)}
.related-thumb{
  flex:0 0 64px;width:64px;height:64px;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid var(--line-strong);
}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body h3{font-size:15.5px;font-weight:600;line-height:1.45;margin-bottom:6px}
.related-body p{font-size:13.5px;color:var(--t-mute);line-height:1.65}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;
  padding:64px 0 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.7),rgba(7,12,20,.95));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand > p{font-size:14px;color:var(--t-sub);max-width:280px;margin-bottom:18px;line-height:1.75}
.footer-quick{display:flex;flex-wrap:wrap;gap:16px}
.footer-quick a{font-size:13.5px;color:var(--t-mute);transition:color .2s ease}
.footer-quick a:hover{color:var(--c-primary)}
.footer-col h4,.footer-note h4{
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--t-main);margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--t-sub);transition:color .2s ease}
.footer-col a:hover{color:var(--c-primary)}
.footer-note p{font-size:13px;color:var(--t-mute);line-height:1.8}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 26px;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--t-mute)}
.to-top{font-size:13px;color:var(--t-sub);transition:color .2s ease}
.to-top:hover{color:var(--c-primary)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{max-width:1080px}
}
@media (max-width:1024px){
  :root{--section-y:64px}
  .nav-list{
    position:fixed;inset:0;z-index:1;
    flex-direction:column;justify-content:center;align-items:center;gap:6px;
    margin:0;padding:88px 24px;
    background:rgba(7,12,20,.95);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s ease,visibility .25s ease;
  }
  .nav-pill.nav-open .nav-list{opacity:1;visibility:visible;pointer-events:auto}
  .nav-link{font-size:19px;padding:12px 20px}
  .nav-link.is-active::after{width:5px;height:5px;bottom:4px}
  .nav-toggle{display:inline-flex}
  .nav-cta{margin-left:auto}
  .hero{padding:132px 0 60px}
  .split{grid-template-columns:1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:22px}
  .cta-bar .btn{width:100%}
  .flow-nodes{grid-template-columns:repeat(5,1fr);gap:8px}
  .flow-node .node-sub{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .step-detail{grid-template-columns:1fr;gap:12px;padding:26px 0}
  .step-num{font-size:26px}
  .check-cols{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand > p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .flow-wrap{padding:26px 18px 22px}
  .flow-nodes{grid-template-columns:1fr;gap:0}
  .flow-node{padding:0 0 0 46px;text-align:left;min-height:52px}
  .flow-node::before{left:0;top:0;transform:none}
  .flow-node::after{
    content:"";position:absolute;top:38px;left:16px;
    width:1px;height:calc(100% - 30px);
    background:linear-gradient(180deg,rgba(53,224,200,.45),rgba(53,224,200,.08));
  }
  .flow-node .node-title{font-size:15px;padding-top:5px}
  .flow-node .node-sub{display:block}
  .cta-bar{padding:28px 22px}
}
@media (max-width:560px){
  body{font-size:15px}
  .hero{padding:118px 0 48px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .nav-cta{display:none}
  .section-head{margin-bottom:32px}
  .step-body h3{font-size:18px}
  .related-card{flex-direction:column}
  .related-thumb{width:100%;height:120px;flex:none}
  .footer-quick{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}