/* roulang page: index */
:root{
  --ink:#0B1F1C;
  --ink-2:#071613;
  --ink-3:#0F2A25;
  --card:#122E29;
  --card-soft:rgba(255,255,255,.04);
  --mint:#35D0BA;
  --mint-soft:rgba(53,208,186,.12);
  --mint-line:rgba(53,208,186,.38);
  --amber:#FF8A3D;
  --amber-soft:rgba(255,138,61,.14);
  --paper:#F7F4EE;
  --paper-ink:#1C1C1C;
  --text:#F2F7F5;
  --muted:rgba(242,247,245,.64);
  --muted-2:rgba(242,247,245,.42);
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.08);
  --line-light:#E5E0D6;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 16px 40px rgba(0,0,0,.28);
  --shadow-lg:0 26px 64px rgba(0,0,0,.42);
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-2);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}
::selection{background:rgba(53,208,186,.32)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,22,19,.62);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,22,19,.94);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:32px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(140deg,var(--mint) 0%,#1F8E7E 60%,var(--ink-3) 100%);
  box-shadow:0 6px 18px rgba(53,208,186,.28);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:50%;
  border:2px solid rgba(7,22,19,.72);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.2;display:flex;flex-direction:column}
.brand-sub{font-size:11px;font-weight:400;color:var(--muted-2);letter-spacing:.22em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.2;cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--mint);color:#06201C;box-shadow:0 10px 26px rgba(53,208,186,.26)}
.btn-primary:hover{background:var(--amber);color:#2A1102;box-shadow:0 14px 34px rgba(255,138,61,.3);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint-line);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:transparent;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;min-height:80vh;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.03);
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(7,22,19,.96) 0%,rgba(7,22,19,.86) 38%,rgba(11,31,28,.52) 68%,rgba(11,31,28,.18) 100%);
}
.hero-inner{padding:104px 24px 96px;max-width:820px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid var(--mint-line);
  background:var(--mint-soft);color:var(--mint);
  font-size:13px;letter-spacing:.06em;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(53,208,186,.16)}
.hero h1{
  margin-top:26px;font-size:clamp(34px,4.6vw,54px);line-height:1.16;font-weight:900;letter-spacing:.01em;
  text-shadow:0 4px 24px rgba(0,0,0,.4);
}
.hero-sub{margin-top:22px;font-size:18px;line-height:1.85;color:rgba(242,247,245,.82);max-width:660px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted)}
.hero-points li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);flex-shrink:0}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--ink-3)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3vw,34px);line-height:1.3;font-weight:800}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:660px}
.more-link{
  font-size:14px;color:var(--mint);white-space:nowrap;padding-bottom:2px;
  border-bottom:1px solid var(--mint-line);transition:color .22s var(--ease),border-color .22s var(--ease);
}
.more-link:hover{color:var(--amber);border-bottom-color:var(--amber)}

/* ---------- 横滑片库 ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.rail-title h2{font-size:clamp(26px,3vw,34px);line-height:1.3;font-weight:800}
.rail-title p{margin-top:12px;color:var(--muted);font-size:16px;max-width:620px}
.rail-nav{display:flex;gap:10px;flex-shrink:0}
.rail-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--text);font-size:18px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.rail-btn:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
.rail{
  display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:14px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:99px}
.rail::-webkit-scrollbar-track{background:transparent}
.rail-card{
  flex:0 0 316px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--mint-line);box-shadow:var(--shadow)}
.rail-figure{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.rail-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rail-card:hover .rail-figure img{transform:scale(1.05)}
.rail-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rail-body h3{font-size:18px;line-height:1.5;font-weight:700}
.rail-card:hover .rail-body h3{color:var(--mint)}
.rail-body p{font-size:14.5px;line-height:1.8;color:var(--muted);flex:1}
.rail-meta{font-size:13px;color:var(--muted-2);display:flex;gap:12px}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;font-size:12px;line-height:1.6;letter-spacing:.04em;
}
.badge-cat{background:var(--mint-soft);color:var(--mint);border:1px solid var(--mint-line)}
.badge-hot{background:var(--amber-soft);color:var(--amber);border:1px solid rgba(255,138,61,.36)}
.badge-soft{background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--line-soft)}

/* ---------- 热播推荐 8+4 ---------- */
.grid-8-4{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:24px}
.feature-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--card);
  min-height:420px;display:flex;align-items:flex-end;
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.feature-card:hover{border-color:var(--mint-line);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.feature-card:hover img{transform:scale(1.04)}
.feature-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,22,19,.1) 0%,rgba(7,22,19,.82) 62%,rgba(7,22,19,.96) 100%)}
.feature-body{position:relative;padding:32px;display:flex;flex-direction:column;gap:14px}
.feature-body h3{font-size:clamp(20px,2.1vw,26px);line-height:1.45;font-weight:800}
.feature-body p{color:rgba(242,247,245,.76);font-size:15px;line-height:1.85;max-width:560px}
.feature-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.side-stack{display:flex;flex-direction:column;gap:24px}
.side-card{
  display:flex;gap:16px;background:var(--card-soft);border:1px solid var(--line-soft);
  border-radius:var(--radius);padding:16px;flex:1;
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.side-card:hover{border-color:var(--mint-line);background:rgba(255,255,255,.06);transform:translateY(-3px)}
.side-thumb{flex:0 0 108px;aspect-ratio:1/1;border-radius:var(--radius-sm);overflow:hidden;background:var(--ink)}
.side-thumb img{width:100%;height:100%;object-fit:cover}
.side-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.side-body h3{font-size:16px;line-height:1.5;font-weight:700}
.side-card:hover .side-body h3{color:var(--mint)}
.side-body p{font-size:13.5px;color:var(--muted);line-height:1.75}
.side-body .rail-meta{margin-top:auto}

/* ---------- 片单分区 ---------- */
.playlist{border-top:1px solid var(--line-soft);padding:34px 0}
.playlist:first-child{border-top:0;padding-top:0}
.playlist-title{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.playlist-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(53,208,186,.12);flex-shrink:0}
.playlist-title h3{font-size:22px;font-weight:700;line-height:1.4}
.playlist-title .more-link{margin-left:auto}
.playlist-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 32px}
.playlist-item{
  display:flex;align-items:flex-start;gap:16px;padding:14px 14px 14px 0;
  border-bottom:1px solid var(--line-soft);transition:padding-left .25s var(--ease);
}
.playlist-item:hover{padding-left:6px}
.playlist-num{font-family:"Inter",sans-serif;font-size:15px;font-weight:600;color:var(--mint);width:26px;flex-shrink:0;line-height:1.7}
.playlist-item h4{font-size:16.5px;font-weight:600;line-height:1.6}
.playlist-item:hover h4{color:var(--mint)}
.playlist-item span{display:block;font-size:13px;color:var(--muted-2);margin-top:5px}

/* ---------- 最新信息（CMS 区） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.news-card{
  background:var(--card-soft);border:1px solid var(--line-soft);border-radius:var(--radius);
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.news-card:hover{border-color:var(--mint-line);background:rgba(255,255,255,.055);transform:translateY(-3px);box-shadow:var(--shadow)}
.news-link{display:block;padding:24px 26px 26px}
.news-title{margin-top:14px;font-size:19px;line-height:1.55;font-weight:700}
.news-card:hover .news-title{color:var(--mint)}
.news-excerpt{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--muted)}
.news-meta{margin-top:16px;display:flex;gap:14px;font-size:12.5px;color:var(--muted-2);font-family:"Inter",sans-serif}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius);
  color:var(--muted);font-size:15px;text-align:center;
}
.empty-state::before{
  content:"";width:36px;height:36px;border-radius:50%;
  border:1px solid var(--mint-line);background:var(--mint-soft);
}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.cta-band .cta-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.36;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(7,22,19,.95) 0%,rgba(7,22,19,.82) 45%,rgba(53,208,186,.24) 100%);
}
.cta-inner{position:relative;z-index:2;padding:82px 0;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(26px,3.2vw,36px);line-height:1.32;font-weight:800;max-width:620px}
.cta-inner p{margin-top:16px;color:rgba(242,247,245,.76);font-size:16px;max-width:600px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line-soft);max-width:900px}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:18px;
  padding:22px 4px;font-size:18px;font-weight:600;line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-family:"Inter",sans-serif;font-size:22px;font-weight:400;
  color:var(--muted);line-height:1;transition:color .22s var(--ease),transform .25s var(--ease);flex-shrink:0;
}
.faq-item[open] summary{color:var(--mint)}
.faq-item[open] summary::after{content:"–";color:var(--mint);transform:rotate(180deg)}
.faq-item summary:hover{color:var(--mint)}
.faq-answer{padding:0 4px 26px 0;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:800px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);border-top:1px solid var(--line-soft);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:var(--muted);max-width:360px}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--muted-2);font-weight:600;margin-bottom:20px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14.5px;color:var(--muted);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--mint)}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:26px 0 34px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-2);
}
.footer-bottom a{color:var(--muted);border-bottom:1px solid var(--line)}
.footer-bottom a:hover{color:var(--mint)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .header-inner{gap:16px;min-height:66px}
  .main-nav{
    position:fixed;left:0;right:0;top:66px;z-index:55;
    flex-direction:column;align-items:stretch;gap:2px;margin-left:0;
    padding:14px 24px 26px;background:rgba(7,22,19,.98);
    border-bottom:1px solid var(--line);box-shadow:0 24px 48px rgba(0,0,0,.4);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:14px 6px;border-radius:0;border-bottom:1px solid var(--line-soft);font-size:16px}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--mint)}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-actions .btn{display:none}
  .hero{min-height:76vh}
  .hero-inner{padding:76px 24px 72px}
  .section{padding:68px 0}
  .grid-8-4{grid-template-columns:minmax(0,1fr)}
  .feature-card{min-height:340px}
  .playlist-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:768px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{min-height:74vh}
  .hero-inner{padding:64px 18px 58px}
  .hero-sub{font-size:16.5px}
  .hero-cta .btn{flex:1 1 auto;justify-content:center}
  .hero-points{gap:10px 20px;margin-top:30px;padding-top:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .rail-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:24px}
  .rail-nav{display:none}
  .rail{gap:14px;margin:0 -18px;padding:0 18px 14px}
  .rail-card{flex:0 0 78vw}
  .news-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .cta-inner{padding:62px 0;gap:26px}
  .cta-inner .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .playlist-title h3{font-size:19px}
  .playlist-title .more-link{margin-left:0}
  .playlist-title{flex-wrap:wrap;gap:10px}
}
@media screen and (max-width:520px){
  .brand-text{font-size:15.5px}
  .brand-sub{display:none}
  .hero h1{font-size:30px}
  .feature-body{padding:22px}
  .news-link{padding:20px}
  .faq-item summary{font-size:16.5px;gap:12px}
}

/* roulang page: article */
:root{
  --ink:#071613;
  --ink-2:#0B1F1C;
  --ink-3:#122E29;
  --mint:#35D0BA;
  --mint-deep:#1F9E8C;
  --mint-soft:rgba(53,208,186,.12);
  --amber:#FF8A3D;
  --paper:#F7F4EE;
  --paper-2:#EFEAE0;
  --text:#F2F7F5;
  --text-dim:#9FB3AE;
  --ink-text:#1C1C1C;
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.08);
  --line-light:#E5E0D6;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 16px 40px rgba(0,0,0,.28);
  --shadow-lg:0 24px 60px rgba(0,0,0,.4);
  --container:1280px;
  --font:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:4px;}

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

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(7,22,19,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,22,19,.94);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--mint),var(--mint-deep));
  position:relative;
  box-shadow:0 6px 18px rgba(53,208,186,.32);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;background:var(--ink);opacity:.88;
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.1;
  font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);
}
.brand-sub{
  font-size:10px;font-weight:500;letter-spacing:.24em;
  color:var(--text-dim);margin-top:4px;font-family:var(--font-num);
}
.main-nav{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;
  padding:9px 2px;
  font-size:15px;
  color:var(--text);
  opacity:.84;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--mint);
  transform:scaleX(0);transform-origin:left;
  transition:transform .26s ease;
}
.nav-link:hover,.nav-link.is-active{color:var(--mint);opacity:1;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  padding:13px 26px;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--mint);color:#04211C;
  box-shadow:0 10px 26px rgba(53,208,186,.24);
}
.btn-primary:hover{background:var(--amber);color:#2A1103;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,138,61,.28);}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid var(--line);
}
.btn-ghost:hover{background:rgba(53,208,186,.1);border-color:var(--mint);color:var(--mint);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:16px;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:transform .24s ease,opacity .24s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ============ ARTICLE HERO ============ */
.article-hero{
  position:relative;
  padding:150px 0 58px;
  background-image:
    linear-gradient(160deg,rgba(7,22,19,.94) 0%,rgba(7,22,19,.82) 46%,rgba(7,22,19,.96) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(7,22,19,0) 0%,rgba(7,22,19,.9) 100%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:var(--text-dim);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#CFE3DE;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-title{
  font-size:44px;
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:860px;
  color:#FFFFFF;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:24px;font-size:14px;color:var(--text-dim);
}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  background:var(--mint-soft);color:var(--mint);
  font-size:13px;font-weight:600;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ============ LAYOUT ============ */
.page-main{padding:56px 0 88px;background:var(--ink);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 304px;
  gap:36px;
  align-items:start;
}

.reading-panel{
  background:var(--paper);
  color:var(--ink-text);
  border-radius:var(--radius);
  padding:48px 50px 56px;
  box-shadow:var(--shadow-lg);
}
.article-body{
  font-size:17.5px;
  line-height:1.92;
  color:#1C1C1C;
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:29px;line-height:1.34;font-weight:800;
  color:#0B1F1C;margin:1.7em 0 .65em;
  padding-left:16px;border-left:4px solid var(--mint);border-radius:2px;
}
.article-body h3{font-size:23px;line-height:1.42;font-weight:700;color:#0B1F1C;margin:1.5em 0 .55em;}
.article-body h4{font-size:18px;line-height:1.5;font-weight:700;color:#12433B;margin:1.3em 0 .5em;}
.article-body ul{margin:0 0 1.15em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.55em;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;
  width:7px;height:7px;border-radius:50%;background:var(--mint-deep);
}
.article-body ol{margin:0 0 1.15em;padding-left:1.35em;list-style:decimal;}
.article-body ol li{margin-bottom:.55em;}
.article-body ol li::marker{color:var(--mint-deep);font-weight:700;}
.article-body blockquote{
  margin:1.5em 0;padding:18px 24px;
  border-left:3px solid var(--mint);
  background:rgba(53,208,186,.1);
  border-radius:0 12px 12px 0;
  color:#123A34;
  font-size:16.5px;
}
.article-body img{border-radius:14px;margin:1.5em auto;width:100%;height:auto;box-shadow:0 10px 26px rgba(0,0,0,.12);}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:13px;color:#6F6A60;text-align:center;margin-top:10px;}
.article-body a{color:#0E8C7C;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#0A6A5E;}
.article-body strong{color:#0B1F1C;font-weight:700;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15.5px;}
.article-body th,.article-body td{border:1px solid var(--line-light);padding:11px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--paper-2);font-weight:700;color:#0B1F1C;}
.article-body pre{
  background:#0B1F1C;color:#DFF3EF;padding:20px 22px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.5em 0;
}
.article-body code{font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--line-light);margin:2.2em 0;}

.empty-state{
  padding:56px 30px;text-align:center;
  border:1px dashed var(--line-light);border-radius:14px;
  background:#FCFAF6;
}
.empty-state i{font-size:26px;color:#B9B2A5;}
.empty-state h2{font-size:22px;margin:16px 0 8px;color:#0B1F1C;border:0;padding:0;}
.empty-state p{color:#6F6A60;font-size:15px;margin-bottom:22px;}
.empty-state .btn{border:1px solid var(--mint);color:#0A6A5E;background:var(--mint-soft);}
.empty-state .btn:hover{background:var(--mint);color:#04211C;}

/* ============ SIDEBAR ============ */
.side-col{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--ink-3);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);
  padding:22px 22px 24px;
  box-shadow:var(--shadow);
}
.side-card h3{
  font-size:16px;font-weight:700;color:#FFFFFF;
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px solid var(--line-soft);
  display:flex;align-items:center;gap:9px;
}
.side-card h3::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);
}
.side-list li + li{border-top:1px solid var(--line-soft);}
.side-list a{
  display:block;padding:11px 0;font-size:14.5px;color:#C9D8D4;line-height:1.6;
}
.side-list a:hover{color:var(--mint);}
.side-list .side-tag{
  display:inline-block;font-size:11.5px;color:var(--amber);
  margin-right:8px;font-family:var(--font-num);font-weight:700;
}
.side-note{font-size:13.5px;color:var(--text-dim);line-height:1.8;}
.side-note + .side-note{margin-top:10px;}
.side-btn{width:100%;justify-content:center;margin-top:16px;}

/* ============ SECTIONS ============ */
.section{padding:72px 0;}
.section-alt{background:var(--ink-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{margin-bottom:36px;max-width:720px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.2em;font-family:var(--font-num);
  color:var(--mint);text-transform:uppercase;margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--mint);}
.section-head h2{font-size:33px;line-height:1.3;font-weight:800;color:#FFFFFF;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--text-dim);font-size:16px;}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--ink-3);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(53,208,186,.5);box-shadow:0 26px 54px rgba(0,0,0,.42);}
.card-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#0E2622;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,22,19,0) 40%,rgba(7,22,19,.7) 100%);
}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:var(--mint-soft);color:var(--mint);
  border:1px solid rgba(53,208,186,.32);
  backdrop-filter:blur(6px);
}
.badge-amber{background:rgba(255,138,61,.16);color:var(--amber);border-color:rgba(255,138,61,.34);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;line-height:1.48;font-weight:700;color:#FFFFFF;margin-bottom:10px;}
.card:hover .card-body h3{color:var(--mint);}
.card-body p{font-size:14.5px;color:var(--text-dim);line-height:1.8;flex:1;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-dim);
}
.card-foot .more{color:var(--mint);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card-foot .more:hover{gap:10px;color:var(--amber);}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  font-size:13px;color:#C9D8D4;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-soft);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--mint);border-color:rgba(53,208,186,.4);background:var(--mint-soft);}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  margin:0 auto;
  border-radius:22px;
  overflow:hidden;
  padding:64px 56px;
  background-image:
    linear-gradient(120deg,rgba(7,22,19,.95) 0%,rgba(11,31,28,.86) 55%,rgba(23,74,66,.7) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);gap:36px;align-items:center;
}
.cta-band h2{font-size:32px;line-height:1.32;font-weight:800;color:#FFFFFF;letter-spacing:-.01em;}
.cta-band p{margin-top:14px;color:#C9D8D4;font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:30px;
}
.cta-stat{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-soft);
  border-radius:14px;padding:16px 18px;
}
.cta-stat strong{display:block;font-size:22px;font-family:var(--font-num);color:var(--mint);line-height:1.2;}
.cta-stat span{font-size:13px;color:var(--text-dim);}

/* ============ FAQ ============ */
.faq-list{max-width:900px;border-top:1px solid var(--line-soft);}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;
  font-size:19px;font-weight:600;color:#FFFFFF;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--mint);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--mint);transition:transform .26s ease,background .26s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--mint-soft);border-color:rgba(53,208,186,.5);}
.faq-item .faq-answer{
  padding:0 4px 26px;color:var(--text-dim);font-size:15.5px;line-height:1.9;max-width:800px;
}

/* ============ FOOTER ============ */
.site-footer{
  background:#06120F;
  border-top:1px solid var(--line-soft);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line-soft);
}
.footer-brand p{margin-top:20px;color:var(--text-dim);font-size:14.5px;line-height:1.9;max-width:380px;}
.footer-col h4{font-size:15px;font-weight:700;color:#FFFFFF;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a,.footer-col ul li span{font-size:14px;color:var(--text-dim);line-height:1.7;}
.footer-col ul li a:hover{color:var(--mint);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:26px;font-size:13px;color:#7C918C;
}
.footer-bottom a{color:#9FB3AE;}
.footer-bottom a:hover{color:var(--mint);}

/* ============ RESPONSIVE ============ */
@media screen and (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:48px 36px;}
  .cta-actions{justify-content:flex-start;}
}
@media screen and (max-width:1024px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(7,22,19,.98);
    border-bottom:1px solid var(--line);
    padding:10px 24px 22px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{padding:15px 2px;font-size:16px;border-bottom:1px solid var(--line-soft);opacity:1;}
  .main-nav .nav-link::after{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .article-hero{padding:126px 0 46px;}
  .article-title{font-size:34px;}
  .reading-panel{padding:36px 28px 42px;}
}
@media screen and (max-width:768px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-text{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:27px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .article-title{font-size:29px;line-height:1.36;}
  .article-body{font-size:17px;}
  .article-body h2{font-size:24px;}
  .article-body h3{font-size:20px;}
  .cta-band{padding:40px 24px;}
  .cta-band h2{font-size:25px;}
  .cta-stats{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .faq-item summary{font-size:17px;padding:20px 2px;}
  .breadcrumb .current{max-width:240px;}
}
@media screen and (max-width:520px){
  .reading-panel{padding:28px 20px 34px;border-radius:14px;}
  .article-meta{font-size:13px;gap:9px;}
  .btn{padding:12px 22px;font-size:14.5px;}
  .btn-lg{padding:14px 26px;}
  .card-body{padding:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#0B1F1C;
  --ink-2:#122E29;
  --bg:#071613;
  --bg-soft:#0C211D;
  --mint:#35D0BA;
  --mint-soft:rgba(53,208,186,.12);
  --mint-line:rgba(53,208,186,.42);
  --amber:#FF8A3D;
  --amber-soft:rgba(255,138,61,.14);
  --text:#F2F7F5;
  --text-dim:#9DB3AD;
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.06);
  --warm:#F7F4EE;
  --warm-text:#1C1C1C;
  --warm-line:#E5E0D6;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:22px;
  --shadow:0 16px 40px rgba(0,0,0,.28);
  --shadow-hi:0 22px 54px rgba(0,0,0,.40);
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.2px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--mint);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.4px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--mint);color:#06201C;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:34px;
}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;text-transform:uppercase;
  color:var(--mint);margin-bottom:10px;font-weight:500;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:2px;background:var(--mint);border-radius:2px;
}
.section-title{font-size:34px;line-height:1.28;}
.section-desc{margin-top:12px;color:var(--text-dim);font-size:16px;max-width:720px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--text-dim);
  border-bottom:1px solid var(--line);
  padding-bottom:4px;white-space:nowrap;
}
.text-link:hover{color:var(--mint);border-color:var(--mint-line);}
.text-link i{font-size:12px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(7,22,19,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,22,19,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;min-height:76px;
}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--mint),#1E9C8B 70%);
  box-shadow:0 0 0 1px rgba(53,208,186,.35),0 8px 20px rgba(53,208,186,.25);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:rgba(7,22,19,.85);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.2;
  font-size:17px;font-weight:700;letter-spacing:.6px;
}
.brand-sub{
  font-family:"Inter",sans-serif;
  font-size:10px;letter-spacing:3px;color:var(--text-dim);font-weight:500;
}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;color:var(--text-dim);border-radius:999px;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;background:var(--mint);
}
.header-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:transparent;border:1px solid var(--line);
  cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{
  display:block;width:18px;height:1.5px;background:var(--text);
  margin:3px auto;transition:.28s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(4.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;
  padding:14px 26px;cursor:pointer;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(53,208,186,.35);}
.btn-primary{
  background:var(--mint);color:#052420;
  box-shadow:0 10px 26px rgba(53,208,186,.26);
}
.btn-primary:hover{background:var(--amber);color:#26120A;transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,138,61,.32);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint-line);color:var(--text);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,.015);}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:14px 0;font-size:13px;color:var(--text-dim);
}
.crumb a{color:var(--text-dim);}
.crumb a:hover{color:var(--mint);}
.crumb .sep{opacity:.42;}
.crumb .current{color:var(--text);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;
  padding:78px 0 68px;
  background-image:linear-gradient(105deg,rgba(7,22,19,.96) 0%,rgba(11,31,28,.88) 42%,rgba(11,31,28,.42) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:auto -10% -60% 40%;
  height:340px;background:radial-gradient(closest-side,rgba(53,208,186,.22),transparent);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  background:var(--mint-soft);border:1px solid var(--mint-line);
  color:var(--mint);font-size:13px;letter-spacing:1px;margin-bottom:22px;
}
.cat-hero h1{
  font-size:52px;line-height:1.16;max-width:900px;
}
.cat-hero h1 em{
  font-style:normal;color:var(--mint);
}
.hero-lead{
  margin-top:20px;max-width:720px;
  font-size:17.5px;color:#CFE0DB;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:46px;padding-top:28px;border-top:1px solid var(--line);
}
.hero-metrics .metric strong{
  display:block;font-family:"Inter",sans-serif;
  font-size:30px;color:var(--text);letter-spacing:.4px;
}
.hero-metrics .metric span{font-size:13.5px;color:var(--text-dim);}

/* ---------- filter bar (static) ---------- */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
  padding:18px 22px;margin-top:38px;
  background:rgba(18,46,41,.62);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(6px);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:8px 16px;border-radius:999px;font-size:13.5px;
  background:transparent;border:1px solid var(--line);
  color:var(--text-dim);cursor:pointer;
  transition:.22s ease;
}
.chip:hover{color:var(--text);border-color:var(--mint-line);}
.chip.is-active{background:var(--mint);border-color:var(--mint);color:#052420;font-weight:500;}
.sort-note{font-size:13px;color:var(--text-dim);display:inline-flex;align-items:center;gap:8px;}

/* ---------- rail（横滑片库） ---------- */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 2px 22px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail .rail-card{
  flex:0 0 auto;width:300px;scroll-snap-align:start;
}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:transparent;color:var(--text-dim);
  cursor:pointer;transition:.22s ease;
}
.rail-btn:hover{color:var(--mint);border-color:var(--mint-line);background:var(--mint-soft);}

/* ---------- cards ---------- */
.card{
  background:var(--ink-2);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--mint-line);box-shadow:var(--shadow-hi);}
.card-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,#123B34,#0B1F1C);
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(7,22,19,.72),transparent 62%);
}
.card-cover .badge{position:absolute;top:14px;left:14px;z-index:2;}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:20px;line-height:1.45;}
.card-body p{font-size:14.5px;color:var(--text-dim);line-height:1.8;}
.card-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-dim);
}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-dim);opacity:.6;}
.card-link{color:var(--mint);font-size:13.5px;display:inline-flex;align-items:center;gap:6px;}

.card-lg .card-cover{aspect-ratio:3/2;}
.card-lg .card-body h3{font-size:23px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:500;letter-spacing:.4px;
  background:var(--mint-soft);color:var(--mint);
  border:1px solid rgba(53,208,186,.28);
}
.badge-amber{background:var(--amber-soft);color:var(--amber);border-color:rgba(255,138,61,.32);}
.badge-plain{background:rgba(255,255,255,.06);color:var(--text-dim);border-color:var(--line);}

/* ---------- steps ---------- */
.step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;padding:26px 22px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:.28s ease;
}
.step:hover{border-color:var(--mint-line);background:rgba(53,208,186,.06);transform:translateY(-3px);}
.step .num{
  font-family:"Inter",sans-serif;font-size:13px;letter-spacing:2px;
  color:var(--mint);font-weight:600;
}
.step h3{font-size:19px;margin:14px 0 10px;}
.step p{font-size:14.5px;color:var(--text-dim);line-height:1.85;}

/* ---------- scene list ---------- */
.scene-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;}
.scene-panel{
  background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:34px;
}
.scene-panel h3{font-size:24px;margin-bottom:16px;}
.scene-panel > p{color:var(--text-dim);font-size:15.5px;}
.scene-list{margin-top:24px;display:flex;flex-direction:column;}
.scene-item{
  display:flex;gap:16px;padding:18px 0;
  border-top:1px solid var(--line-soft);
}
.scene-item:first-child{border-top:none;}
.scene-item .idx{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--mint-soft);color:var(--mint);
  font-family:"Inter",sans-serif;font-size:13px;font-weight:600;
}
.scene-item h4{font-size:17px;margin-bottom:6px;}
.scene-item p{font-size:14px;color:var(--text-dim);line-height:1.8;}
.media-panel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);min-height:340px;
}
.media-panel img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.media-panel .overlay{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(7,22,19,.92),rgba(7,22,19,.18) 60%);
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:30px;
}
.media-panel .overlay h4{font-size:20px;}
.media-panel .overlay p{font-size:14px;color:#C6D8D3;margin-top:8px;}

/* ---------- notice strip ---------- */
.notice-strip{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 26px;border-radius:var(--radius);
  background:linear-gradient(100deg,rgba(53,208,186,.10),rgba(255,138,61,.07));
  border:1px solid var(--line);
}
.notice-strip i{color:var(--amber);font-size:20px;margin-top:5px;}
.notice-strip p{font-size:14.5px;color:#CFE0DB;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:19px;font-weight:500;color:var(--text);
  transition:color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--mint);}
.faq-item summary .icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--text-dim);font-size:12px;transition:.25s ease;
}
.faq-item[open] summary{color:var(--mint);}
.faq-item[open] summary .icon{background:var(--mint);border-color:var(--mint);color:#052420;transform:rotate(180deg);}
.faq-answer{padding:0 4px 26px;color:var(--text-dim);font-size:15.5px;line-height:1.9;max-width:900px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background-image:linear-gradient(100deg,rgba(7,22,19,.95),rgba(11,31,28,.78)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  padding:58px 54px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:32px;line-height:1.3;}
.cta-band p{margin-top:14px;color:#C6D8D3;font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;
  background:#051210;
  border-top:1px solid var(--line);
  padding:66px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand p{margin-top:18px;font-size:14.5px;color:var(--text-dim);line-height:1.9;max-width:340px;}
.footer-col h4{font-size:15px;letter-spacing:.6px;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;color:var(--text-dim);}
.footer-col a{color:var(--text-dim);}
.footer-col a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--mint);}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .cat-hero h1{font-size:42px;}
  .step-list{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .main-nav{gap:0;}
  .nav-link{padding:10px 10px;font-size:14px;}
}
@media screen and (max-width:900px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(7,22,19,.98);
    border-bottom:1px solid var(--line);
    padding:12px 24px 20px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 4px;border-radius:0;border-bottom:1px solid var(--line-soft);font-size:15.5px;}
  .nav-link.is-active::after{left:4px;right:auto;width:26px;bottom:8px;}
  .nav-toggle{display:block;}
  .header-actions .btn{display:none;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .section{padding:54px 0;}
  .container{padding:0 20px;}
  .cat-hero{padding:54px 0 48px;}
  .cat-hero h1{font-size:33px;}
  .hero-lead{font-size:16px;}
  .hero-metrics{gap:26px;margin-top:34px;}
  .hero-metrics .metric strong{font-size:24px;}
  .section-title{font-size:26px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px;}
  .rail .rail-card{width:78vw;}
  .rail-nav{display:none;}
  .cta-band{padding:38px 26px;}
  .cta-band h2{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .step-list{grid-template-columns:1fr;}
  .faq-item summary{font-size:17px;padding:20px 2px;}
  .scene-panel{padding:26px 22px;}
  .filter-bar{padding:16px;}
}
@media screen and (max-width:520px){
  .brand-text{font-size:15.5px;}
  .brand-sub{letter-spacing:2px;}
  .cat-hero h1{font-size:28px;}
  .btn{padding:13px 20px;font-size:14.5px;}
  .card-body{padding:18px;}
}

/* roulang page: category2 */
:root{
  --ink:#0B1F1C;
  --ink-2:#122E29;
  --bg:#071613;
  --bg-soft:#0A1D19;
  --mint:#35D0BA;
  --mint-dim:rgba(53,208,186,.12);
  --amber:#FF8A3D;
  --paper:#F7F4EE;
  --text:#F2F7F5;
  --text-weak:rgba(242,247,245,.68);
  --text-mute:rgba(242,247,245,.46);
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.08);
  --radius-s:10px;
  --radius:14px;
  --radius-l:18px;
  --radius-pill:999px;
  --shadow:0 16px 40px rgba(0,0,0,.28);
  --shadow-lg:0 26px 60px rgba(0,0,0,.42);
  --pad-x:22px;
  --max:1280px;
  --font:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Noto Sans SC",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--mint);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#5ee4d0;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;color:var(--text);}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.16;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.26;}
h3{font-size:clamp(19px,2vw,24px);line-height:1.38;}
h4{font-size:18px;line-height:1.5;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:800;
  padding:18px 0;
  background:linear-gradient(180deg,rgba(7,22,19,.92) 0%,rgba(7,22,19,.42) 70%,rgba(7,22,19,0) 100%);
  transition:background .3s ease,padding .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  padding:12px 0;
  background:rgba(7,22,19,.92);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line-soft);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:700;
  letter-spacing:.3px;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--mint) 0%,#1c8d7e 55%,var(--amber) 140%);
  box-shadow:0 0 0 1px rgba(53,208,186,.35),0 8px 22px rgba(53,208,186,.22);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:3px;
  background:rgba(7,22,19,.85);
}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:16px;
  line-height:1.18;
}
.brand-sub{
  font-family:var(--font-num);
  font-size:10px;
  letter-spacing:2.4px;
  font-weight:500;
  color:var(--mint);
  opacity:.8;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 15px;
  font-size:15px;
  color:var(--text-weak);
  border-radius:var(--radius-pill);
  transition:color .22s ease,background .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--text);background:var(--mint-dim);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--mint);
}
.header-actions{display:flex;align-items:center;gap:12px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.3px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  cursor:pointer;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{
  background:var(--mint);
  color:#04201B;
  box-shadow:0 10px 26px rgba(53,208,186,.24);
}
.btn-primary:hover{
  background:var(--amber);
  color:#2a1405;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(255,138,61,.3);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.24);
  color:var(--text);
}
.btn-ghost:hover{
  background:var(--mint-dim);
  border-color:var(--mint);
  color:var(--text);
  transform:translateY(-2px);
}
.btn:active{transform:translateY(0);}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid rgba(255,255,255,.2);
  border-radius:12px;
  background:transparent;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:17px;height:1.6px;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:170px 0 72px;
  background-image:linear-gradient(105deg,rgba(7,22,19,.94) 0%,rgba(7,22,19,.82) 46%,rgba(11,31,28,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(53,208,186,.22) 0%,rgba(53,208,186,0) 68%);
  pointer-events:none;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--text-mute);
  margin-bottom:26px;
}
.crumb a{color:var(--text-mute);}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{opacity:.5;}
.crumb .now{color:var(--mint);}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:52px;
  align-items:end;
  position:relative;
  z-index:2;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12.5px;
  letter-spacing:2.4px;
  text-transform:uppercase;
  color:var(--mint);
  margin-bottom:20px;
  font-family:var(--font-num);
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;background:var(--mint);opacity:.7;
}
.hero-lead{
  margin-top:22px;
  font-size:17px;
  line-height:1.9;
  color:var(--text-weak);
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-facts{
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(8px);
  padding:26px 26px 22px;
  box-shadow:var(--shadow);
}
.hero-facts h4{
  font-size:14px;
  letter-spacing:1.6px;
  color:var(--text-mute);
  font-weight:600;
  text-transform:uppercase;
  margin-bottom:18px;
  font-family:var(--font-num);
}
.fact-row{
  display:flex;
  align-items:flex-start;
  gap:13px;
  padding:13px 0;
  border-top:1px solid var(--line-soft);
}
.fact-row:first-of-type{border-top:none;padding-top:0;}
.fact-row i{color:var(--mint);font-size:15px;margin-top:5px;}
.fact-row p{margin:0;font-size:14.5px;line-height:1.75;color:var(--text-weak);}
.fact-row strong{color:var(--text);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  display:block;
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:2.4px;
  text-transform:uppercase;
  color:var(--mint);
  margin-bottom:14px;
}
.section-head p{
  margin-top:16px;
  color:var(--text-weak);
  font-size:16px;
  line-height:1.9;
}

/* ---------- 左锚点 + 右双列列表 ---------- */
.catalog-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.anchor-panel{
  position:sticky;
  top:104px;
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  background:rgba(255,255,255,.035);
  padding:24px 22px;
  box-shadow:var(--shadow);
}
.anchor-panel h4{
  font-size:13px;
  letter-spacing:1.8px;
  text-transform:uppercase;
  font-family:var(--font-num);
  color:var(--text-mute);
  font-weight:600;
  margin-bottom:16px;
}
.anchor-list li + li{margin-top:4px;}
.anchor-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--radius-s);
  color:var(--text-weak);
  font-size:14.5px;
  transition:background .22s ease,color .22s ease,padding-left .22s ease;
}
.anchor-list a::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--mint);
  opacity:.45;
  flex:0 0 5px;
  transition:opacity .22s ease,transform .22s ease;
}
.anchor-list a:hover{
  background:var(--mint-dim);
  color:var(--text);
  padding-left:16px;
}
.anchor-list a:hover::before{opacity:1;transform:scale(1.3);}
.anchor-note{
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:13.5px;
  line-height:1.8;
  color:var(--text-mute);
}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  margin-bottom:32px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;}
.chip{
  display:inline-flex;
  align-items:center;
  padding:7px 15px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  font-size:13.5px;
  color:var(--text-weak);
  background:transparent;
  transition:all .2s ease;
}
.chip.is-on,.chip:hover{
  background:var(--mint-dim);
  border-color:rgba(53,208,186,.5);
  color:var(--mint);
}
.sort-hint{font-size:13.5px;color:var(--text-mute);}

.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.doc-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  background:var(--ink-2);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.doc-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,208,186,.55);
  box-shadow:var(--shadow-lg);
}
.doc-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--ink);
}
.doc-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease,opacity .3s ease;
  opacity:.86;
}
.doc-card:hover .doc-thumb img{transform:scale(1.05);opacity:1;}
.doc-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,22,19,0) 40%,rgba(7,22,19,.72) 100%);
}
.badge{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  font-size:12px;
  border-radius:var(--radius-pill);
  background:rgba(53,208,186,.16);
  border:1px solid rgba(53,208,186,.42);
  color:#a9f2e7;
  backdrop-filter:blur(6px);
}
.badge-amber{
  background:rgba(255,138,61,.16);
  border-color:rgba(255,138,61,.45);
  color:#ffc79c;
}
.badge-slot{
  position:absolute;left:auto;right:14px;top:14px;
}
.doc-body{
  padding:22px 22px 20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.doc-body h3{
  font-size:19px;
  line-height:1.45;
  margin-bottom:12px;
}
.doc-body h3 a{color:var(--text);}
.doc-body h3 a:hover{color:var(--mint);}
.doc-body p{
  font-size:14.6px;
  line-height:1.85;
  color:var(--text-weak);
  margin-bottom:18px;
}
.doc-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:16px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-mute);
  font-family:var(--font-num);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  font-size:12.5px;
  border-radius:6px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-soft);
  color:var(--text-weak);
  font-family:var(--font);
}
.more-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  color:var(--mint);
  white-space:nowrap;
}
.more-link:hover{gap:10px;}

/* ---------- 流程时间线 ---------- */
.flow-list{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  background:rgba(255,255,255,.035);
  padding:26px 22px;
  transition:border-color .24s ease,transform .24s ease;
}
.flow-item:hover{border-color:rgba(53,208,186,.5);transform:translateY(-3px);}
.flow-num{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:1.6px;
  color:var(--amber);
  display:block;
  margin-bottom:14px;
}
.flow-item h3{font-size:18px;margin-bottom:10px;}
.flow-item p{font-size:14.5px;color:var(--text-weak);line-height:1.85;margin:0;}

/* ---------- 场景双栏 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px;
}
.scene-card{
  border-left:2px solid var(--mint);
  border-radius:0 var(--radius) var(--radius) 0;
  background:rgba(255,255,255,.035);
  padding:26px 26px 24px;
  transition:background .24s ease,border-color .24s ease;
}
.scene-card:hover{background:rgba(53,208,186,.07);border-left-color:var(--amber);}
.scene-card h3{font-size:19px;margin-bottom:12px;}
.scene-card p{font-size:15px;color:var(--text-weak);line-height:1.9;margin-bottom:14px;}
.scene-card ul li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text-weak);
  line-height:1.85;
}
.scene-card ul li + li{margin-top:8px;}
.scene-card ul li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:7px;height:7px;
  border-radius:50%;
  border:1.5px solid var(--mint);
  opacity:.8;
}

/* ---------- 数据条 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  overflow:hidden;
}
.stat-cell{
  background:var(--bg-soft);
  padding:30px 24px;
}
.stat-cell strong{
  display:block;
  font-family:var(--font-num);
  font-size:34px;
  line-height:1.1;
  color:var(--mint);
  margin-bottom:10px;
  letter-spacing:-.5px;
}
.stat-cell span{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.75;
  display:block;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;border-top:1px solid var(--line-soft);}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px;
  background:transparent;
  border:none;
  color:var(--text);
  font-size:18px;
  font-weight:600;
  text-align:left;
  line-height:1.6;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--mint);}
.faq-icon{
  flex:0 0 26px;
  width:26px;height:26px;
  border:1px solid var(--line);
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  color:var(--mint);
  transition:transform .25s ease,background .25s ease,border-color .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--mint-dim);border-color:rgba(53,208,186,.6);}
.faq-item.is-open .faq-q{color:var(--mint);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s ease,padding .34s ease;
}
.faq-item.is-open .faq-a{max-height:420px;padding-bottom:24px;}
.faq-a p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-weak);
  margin:0;
  padding-right:46px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  padding:64px 56px;
  background-image:linear-gradient(120deg,rgba(7,22,19,.94) 0%,rgba(11,31,28,.86) 50%,rgba(53,208,186,.28) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border:1px solid var(--line);
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);}
.cta-band p{margin-top:16px;color:var(--text-weak);font-size:16px;line-height:1.9;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  border-top:1px solid var(--line-soft);
  padding:72px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.7fr) repeat(3,minmax(0,1fr));
  gap:44px;
  padding-bottom:52px;
  border-bottom:1px solid var(--line-soft);
}
.footer-brand p{
  margin-top:20px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--text-weak);
  max-width:360px;
}
.footer-col h4{
  font-size:15px;
  margin-bottom:20px;
  color:var(--text);
}
.footer-col ul li + li{margin-top:12px;}
.footer-col a,.footer-col span{
  font-size:14.5px;
  color:var(--text-weak);
  line-height:1.7;
}
.footer-col a:hover{color:var(--mint);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:26px;
  font-size:13.5px;
  color:var(--text-mute);
}
.footer-bottom a{color:var(--text-mute);}
.footer-bottom a:hover{color:var(--mint);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;align-items:start;}
  .catalog-layout{grid-template-columns:1fr;gap:30px;}
  .anchor-panel{position:static;}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-list li + li{margin-top:0;}
  .anchor-list a{padding:8px 14px;border:1px solid var(--line);}
  .flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:48px 34px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:60px 0;}
  .page-hero{padding:136px 0 56px;}
  .main-nav{
    position:fixed;
    top:66px;left:14px;right:14px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    background:rgba(9,26,22,.97);
    backdrop-filter:blur(16px);
    box-shadow:var(--shadow-lg);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:13px 16px;font-size:15.5px;}
  .nav-link.is-active::after{left:16px;right:16px;bottom:7px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .flow-list{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .faq-q{font-size:16.5px;padding:20px 2px;}
  .faq-a p{padding-right:0;}
  .cta-band{padding:40px 24px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:520px){
  :root{--pad-x:18px;}
  h1{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .brand-text{font-size:15px;}
  .doc-body{padding:18px 16px 16px;}
}

/* roulang page: category3 */
:root{
  --ink:#071613;
  --ink-2:#0B1F1C;
  --surface:#122E29;
  --surface-2:rgba(255,255,255,0.04);
  --mint:#35D0BA;
  --mint-soft:rgba(53,208,186,0.12);
  --amber:#FF8A3D;
  --paper:#F7F4EE;
  --text:#F2F7F5;
  --text-weak:rgba(242,247,245,0.66);
  --text-faint:rgba(242,247,245,0.44);
  --line:rgba(255,255,255,0.12);
  --line-soft:rgba(255,255,255,0.08);
  --line-light:#E5E0D6;
  --radius-s:10px;
  --radius:14px;
  --radius-l:18px;
  --shadow:0 16px 40px rgba(0,0,0,0.28);
  --shadow-soft:0 10px 26px rgba(0,0,0,0.18);
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.foundation body{font-family:"Noto Sans SC","PingFang SC",sans-serif;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.01em;}
p{margin:0;}
a{color:var(--mint);text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease);}
a:hover{color:var(--amber);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--mint);color:var(--ink);}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

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

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(7,22,19,0.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,22,19,0.96);
  box-shadow:0 8px 30px rgba(0,0,0,0.4);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  flex:0 0 auto;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:12px;height:12px;border-radius:50%;
  background:linear-gradient(140deg,var(--mint),var(--amber));
  box-shadow:0 0 0 5px var(--mint-soft);
  flex:0 0 auto;
}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:18px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.02em;
}
.brand-sub{
  font-family:"Inter",sans-serif;
  font-size:9px;
  font-weight:500;
  letter-spacing:.28em;
  color:var(--text-faint);
  margin-top:2px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-weak);
  border-radius:999px;
  white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  background:var(--mint);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,0.04);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{width:22px;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:transparent;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:var(--text);
  border-radius:2px;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--mint);background:var(--mint-soft);}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:15px;
  font-weight:500;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .28s var(--ease);
  white-space:nowrap;
  line-height:1.4;
}
.btn-primary{
  background:var(--mint);
  color:#06231E;
  box-shadow:0 10px 24px rgba(53,208,186,0.22);
}
.btn-primary:hover{
  background:var(--amber);
  color:#251004;
  box-shadow:0 14px 30px rgba(255,138,61,0.3);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{
  background:var(--mint-soft);
  border-color:var(--mint);
  color:var(--mint);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 34px;font-size:16px;}

/* ============ SECTION BASICS ============ */
main{display:block;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%);}
.section-line{border-top:1px solid var(--line-soft);}
.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:34px;
  line-height:1.25;
}
.section-head p{
  color:var(--text-weak);
  font-size:16px;
  max-width:640px;
  margin-top:12px;
}
.eyebrow{
  display:inline-block;
  font-family:"Inter",sans-serif;
  font-size:11px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--mint);
  margin-bottom:14px;
}
.link-more{
  font-size:14px;
  color:var(--text-weak);
  border-bottom:1px solid var(--line);
  padding-bottom:3px;
}
.link-more:hover{color:var(--mint);border-color:var(--mint);}

/* ============ HERO ============ */
.page-hero{
  position:relative;
  min-height:60vh;
  display:flex;
  align-items:flex-end;
  padding:120px 0 64px;
  overflow:hidden;
  background-image:linear-gradient(160deg,rgba(7,22,19,0.94) 0%,rgba(11,31,28,0.82) 48%,rgba(7,22,19,0.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:140px;
  background:linear-gradient(180deg,rgba(7,22,19,0) 0%,var(--ink) 100%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-faint);
  margin-bottom:22px;
}
.crumb a{color:var(--text-faint);}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{opacity:.5;}
.page-hero h1{
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.16;
  max-width:900px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--mint);
}
.hero-lead{
  margin-top:22px;
  max-width:720px;
  font-size:17px;
  color:var(--text-weak);
  line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:40px;
  margin-top:46px;
  padding-top:28px;
  border-top:1px solid var(--line-soft);
}
.hero-stats div{min-width:120px;}
.hero-stats strong{
  display:block;
  font-family:"Inter",sans-serif;
  font-size:26px;
  color:var(--mint);
  font-weight:600;
  letter-spacing:.02em;
}
.hero-stats span{font-size:13px;color:var(--text-faint);}

/* ============ FILTER BAR ============ */
.filter-bar{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:34px;
  padding:14px 16px;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  background:rgba(255,255,255,0.03);
  backdrop-filter:blur(8px);
}
.filter-bar .fb-label{
  font-size:13px;
  color:var(--text-faint);
  margin-right:4px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  font-size:13.5px;
  color:var(--text-weak);
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
  cursor:pointer;
  transition:all .25s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--mint);}
.chip.is-on{
  background:var(--mint-soft);
  border-color:var(--mint);
  color:var(--mint);
}
.filter-bar .fb-sort{
  margin-left:auto;
  font-size:13px;
  color:var(--text-faint);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.filter-bar .fb-sort select{
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text-weak);
  font-size:13px;
  padding:7px 12px;
}
.filter-bar .fb-sort select:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px var(--mint-soft);}

/* ============ TIMELINE / FLOW ============ */
.flow-wrap{
  position:relative;
  padding-left:26px;
}
.flow-wrap::before{
  content:"";
  position:absolute;
  left:5px;
  top:8px;
  bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(53,208,186,0.5) 0%,rgba(255,255,255,0.08) 12%,rgba(255,255,255,0.08) 88%,rgba(53,208,186,0.3) 100%);
}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
  align-items:start;
}
.flow-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  padding:26px 26px 24px;
  box-shadow:var(--shadow-soft);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.flow-item::before{
  content:"";
  position:absolute;
  left:-27px;
  top:32px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 5px rgba(53,208,186,0.14);
}
.flow-item:hover{
  transform:translateY(-4px);
  border-color:var(--mint);
  box-shadow:var(--shadow);
}
.flow-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
  flex-wrap:wrap;
}
.flow-date{
  font-family:"Inter",sans-serif;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--text-faint);
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  font-size:12px;
  border-radius:999px;
  line-height:1.6;
}
.badge-mint{background:var(--mint-soft);color:var(--mint);}
.badge-amber{background:rgba(255,138,61,0.14);color:var(--amber);}
.badge-line{border:1px solid var(--line);color:var(--text-faint);}
.flow-item h3{
  font-size:20px;
  line-height:1.45;
  margin-bottom:10px;
}
.flow-item:hover h3{color:var(--mint);}
.flow-item p{
  font-size:15.5px;
  color:var(--text-weak);
  line-height:1.85;
}
.flow-thumb{
  margin-top:18px;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line-soft);
}
.flow-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.flow-item:hover .flow-thumb img{transform:scale(1.04);}
.flow-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ============ CHANNEL CARDS ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card{
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  padding:28px 26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,208,186,0.5);
  background:rgba(53,208,186,0.06);
}
.card-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--mint-soft);
  color:var(--mint);
  font-size:18px;
  margin-bottom:18px;
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--text-weak);line-height:1.85;}

/* ============ STEPS ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:26px 22px;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-l);
  background:linear-gradient(180deg,rgba(255,255,255,0.045) 0%,rgba(255,255,255,0.015) 100%);
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.step:hover{border-color:var(--mint);transform:translateY(-3px);}
.step-num{
  font-family:"Inter",sans-serif;
  font-size:13px;
  color:var(--amber);
  letter-spacing:.18em;
  margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-weak);line-height:1.8;}

/* ============ SPLIT PANEL ============ */
.split{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow);
  aspect-ratio:3/2;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split h2{font-size:32px;line-height:1.28;margin-bottom:18px;}
.split p{color:var(--text-weak);font-size:16px;line-height:1.9;}
.check-list{margin-top:24px;display:grid;gap:12px;}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15.5px;
  color:var(--text-weak);
}
.check-list li i{color:var(--mint);font-size:14px;margin-top:6px;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line-soft);}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px;
  font-size:18px;
  font-weight:500;
  color:var(--text);
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--mint);}
.faq-item summary .fx{
  flex:0 0 auto;
  width:26px;height:26px;
  border:1px solid var(--line);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  color:var(--text-weak);
  transition:all .25s var(--ease);
}
.faq-item[open] summary{color:var(--mint);}
.faq-item[open] summary .fx{
  background:var(--mint-soft);
  border-color:var(--mint);
  color:var(--mint);
  transform:rotate(45deg);
}
.faq-body{
  padding:0 4px 26px;
  font-size:16px;
  color:var(--text-weak);
  line-height:1.9;
  max-width:900px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  padding:64px 56px;
  background-image:linear-gradient(120deg,rgba(7,22,19,0.94) 0%,rgba(11,31,28,0.78) 55%,rgba(53,208,186,0.28) 100%),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border:1px solid var(--line-soft);
}
.cta-band h2{font-size:34px;line-height:1.25;max-width:640px;}
.cta-band p{
  margin-top:16px;
  max-width:600px;
  color:var(--text-weak);
  font-size:16px;
}
.cta-band .hero-actions{margin-top:30px;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink-2);
  border-top:1px solid var(--line-soft);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:48px;
  border-bottom:1px solid var(--line-soft);
}
.footer-brand p{
  margin-top:20px;
  font-size:14.5px;
  color:var(--text-faint);
  line-height:1.9;
  max-width:360px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  color:var(--text);
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col li a,.footer-col li span{
  font-size:14.5px;
  color:var(--text-faint);
  line-height:1.7;
}
.footer-col li a:hover{color:var(--mint);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding-top:26px;
  font-size:13.5px;
  color:var(--text-faint);
}
.footer-bottom a{color:var(--text-faint);}
.footer-bottom a:hover{color:var(--mint);}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .main-nav{
    position:fixed;
    top:76px;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:18px 24px 26px;
    background:rgba(7,22,19,0.98);
    border-bottom:1px solid var(--line-soft);
    backdrop-filter:blur(16px);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .28s var(--ease),transform .28s var(--ease);
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{padding:14px 16px;font-size:16px;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--mint-soft);color:var(--mint);}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .section{padding:70px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-hero{padding:96px 0 52px;min-height:auto;}
  .page-hero h1{font-size:30px;}
  .hero-stats{gap:26px;}
  .filter-bar .fb-sort{margin-left:0;width:100%;justify-content:space-between;}
  .flow-wrap{padding-left:20px;}
  .flow-wrap::before{left:3px;}
  .flow-item::before{left:-21px;top:28px;}
  .flow-grid{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section-head h2{font-size:26px;}
  .cta-band{padding:44px 26px;border-radius:20px;}
  .cta-band h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .brand-sub{letter-spacing:.2em;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:16.5px;padding:20px 2px;}
  .flow-item{padding:22px 20px;}
}