/* roulang page: index */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.32);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-hover:0 28px 60px rgba(0,0,0,.5);
  --font-cn:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-deep);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(53,230,196,.12), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(124,140,255,.14), transparent 64%),
    url('/assets/images/backpic/back-2.webp') center top / cover no-repeat;
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(126,200,255,.05) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(126,200,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  pointer-events:none;
  z-index:0;
}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:#7CF3DE;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{font-weight:800;letter-spacing:0;margin:0;line-height:1.24;color:#fff;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(53,230,196,.3);color:#fff;}
.container{max-width:1320px;padding-left:24px;padding-right:24px;position:relative;z-index:2;}
.page-wrap{position:relative;z-index:2;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(5,14,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  height:74px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{
  width:34px;height:34px;border-radius:10px;
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
  padding:5px;background:rgba(53,230,196,.1);border:1px solid rgba(53,230,196,.35);
}
.brand-icon i{background:var(--primary);border-radius:2px;display:block;}
.brand-icon i:nth-child(2){background:var(--secondary);}
.brand-icon i:nth-child(3){background:var(--secondary);opacity:.75;}
.brand-icon i:nth-child(4){background:var(--primary);opacity:.75;}
.brand-name{font-size:19px;font-weight:800;color:#fff;letter-spacing:0;white-space:nowrap;}
.brand-name:hover{color:#fff;}
.nav-channels{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-link{
  position:relative;display:inline-block;padding:8px 10px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(126,200,255,.08);}
.nav-link.active{color:#fff;font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  box-shadow:0 0 10px rgba(53,230,196,.9);
}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{position:relative;width:216px;}
.nav-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:rgba(16,37,58,.7);color:var(--text);font-size:14px;
  padding:0 40px 0 16px;outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search input:focus{border-color:rgba(53,230,196,.7);box-shadow:0 0 0 3px rgba(53,230,196,.16);}
.nav-search button{
  position:absolute;right:5px;top:5px;width:30px;height:30px;border-radius:50%;
  border:0;background:rgba(53,230,196,.14);color:var(--primary);font-size:13px;cursor:pointer;
  display:grid;place-items:center;transition:background .18s ease;
}
.nav-search button:hover{background:rgba(53,230,196,.3);}
.nav-login{font-size:14.5px;color:var(--muted);white-space:nowrap;background:none;border:0;padding:6px 4px;}
.nav-login:hover{color:#fff;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:12px;border:1px solid var(--line-strong);
  background:transparent;color:var(--text);font-size:14.5px;font-weight:600;
  transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease;
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(53,230,196,.08);transform:translateY(-1px);}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:999px;border:0;cursor:pointer;
  background:linear-gradient(120deg,#35E6C4,#7C8CFF);color:#04121A;font-size:14.5px;font-weight:800;
  box-shadow:0 0 0 1px rgba(53,230,196,.5),0 10px 30px rgba(53,230,196,.3);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(53,230,196,.7),0 16px 38px rgba(53,230,196,.42);color:#04121A;}
.btn-glow:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(16,37,58,.7);color:var(--text);font-size:16px;
}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:rgba(5,14,28,.97);
  padding:16px 0 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel .nav-search{width:100%;margin-bottom:14px;}
.mobile-panel .m-links{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.mobile-panel .m-links a{padding:11px 12px;border-radius:12px;color:var(--muted);font-size:15.5px;}
.mobile-panel .m-links a:hover,.mobile-panel .m-links a.active{background:rgba(53,230,196,.1);color:#fff;}
.mobile-actions{display:flex;gap:10px;}
.mobile-actions .btn-glow,.mobile-actions .btn-ghost{flex:1;height:44px;}

/* ---------- hero ---------- */
.hero{padding:64px 0 40px;position:relative;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.32);
  color:var(--primary);font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(36px,5vw,62px);
  line-height:1.08;
  margin-bottom:20px;
}
.hero h1 .hl{color:var(--primary);position:relative;white-space:nowrap;}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;border-radius:4px;
  background:rgba(53,230,196,.22);z-index:-1;
}
.hero-sub{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:30px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 30px;border-radius:999px;border:0;cursor:pointer;
  background:linear-gradient(120deg,#35E6C4,#7C8CFF);color:#04121A;font-size:16px;font-weight:800;
  box-shadow:0 0 0 1px rgba(53,230,196,.55),0 16px 40px rgba(53,230,196,.3);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(53,230,196,.8),0 22px 50px rgba(53,230,196,.42);color:#04121A;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(16,37,58,.45);color:var(--text);font-size:16px;font-weight:700;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(53,230,196,.08);transform:translateY(-2px);}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2;}
.hero-stat span{font-size:13px;color:var(--weak);}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid var(--line);box-shadow:var(--shadow);
  filter:saturate(1.05);
}
.hero-visual::before{
  content:"";position:absolute;inset:-18px -10px auto auto;width:180px;height:180px;
  background:radial-gradient(circle,rgba(124,140,255,.4),transparent 70%);filter:blur(10px);z-index:-1;
}
.glass-card{
  position:absolute;left:-26px;bottom:-30px;width:min(320px,88%);
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line-strong);border-radius:18px;padding:16px;
  box-shadow:var(--shadow);
}
.glass-card .gc-top{display:flex;gap:12px;align-items:center;margin-bottom:12px;}
.glass-card .gc-top img{width:64px;height:44px;object-fit:cover;border-radius:10px;border:1px solid var(--line);}
.glass-card .gc-title{font-size:14.5px;font-weight:700;color:#fff;line-height:1.4;}
.glass-card .gc-meta{font-size:12px;color:var(--weak);}
.gc-rows{display:grid;gap:8px;font-size:13px;color:var(--muted);}
.gc-row{display:flex;justify-content:space-between;gap:12px;border-top:1px solid rgba(126,200,255,.1);padding-top:8px;}
.gc-row b{color:var(--primary);font-weight:700;}

/* ---------- section base ---------- */
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head .sub{font-size:15px;color:var(--muted);margin-top:8px;max-width:620px;}
.link-more{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:8px;color:var(--primary);}
.link-more:hover{gap:12px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.24);
  color:var(--primary);font-size:12.5px;font-weight:600;
}
.tag.purple{background:rgba(124,140,255,.14);border-color:rgba(124,140,255,.3);color:#A9B4FF;}
.tag.orange{background:rgba(255,122,89,.14);border-color:rgba(255,122,89,.3);color:#FFA48B;}

/* ---------- topic covers ---------- */
.topic-grid{display:grid;grid-template-columns:1fr 1fr 360px;gap:24px;}
.topic-card{
  display:flex;flex-direction:column;overflow:hidden;position:relative;
  background:linear-gradient(180deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.topic-card:hover{transform:translateY(-3px);border-color:rgba(53,230,196,.42);box-shadow:var(--shadow-hover);}
.topic-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.topic-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.topic-card:hover .topic-cover img{transform:scale(1.04);}
.topic-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(5,11,20,.82));}
.topic-cover .tag{position:absolute;top:14px;left:14px;z-index:2;}
.topic-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.topic-body h3{font-size:21px;line-height:1.38;}
.topic-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.7;}
.topic-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;}
.topic-meta{font-size:12.5px;color:var(--weak);display:flex;gap:14px;flex-wrap:wrap;}
.btn-collect{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(16,37,58,.6);color:var(--muted);
  font-size:13px;font-weight:600;cursor:pointer;transition:all .18s ease;
}
.btn-collect:hover{border-color:var(--primary);color:var(--primary);}
.btn-collect.on{border-color:var(--primary);color:var(--primary);background:rgba(53,230,196,.14);box-shadow:0 0 16px rgba(53,230,196,.28);}
.side-topics{display:grid;gap:24px;}
.mini-topic{
  display:flex;gap:14px;padding:16px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.mini-topic:hover{border-color:rgba(53,230,196,.4);transform:translateY(-2px);}
.mini-topic img{width:96px;height:72px;object-fit:cover;border-radius:10px;flex-shrink:0;border:1px solid var(--line);}
.mini-topic h4{font-size:15.5px;margin-bottom:6px;line-height:1.45;}
.mini-topic span{font-size:12.5px;color:var(--weak);}

/* ---------- catalog ---------- */
.catalog{
  display:grid;grid-template-columns:repeat(6,1fr);gap:14px;
  padding:22px;border-radius:var(--radius-lg);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
}
.catalog-item{
  display:flex;flex-direction:column;gap:8px;padding:14px 14px 14px 16px;border-radius:14px;
  background:rgba(11,26,43,.7);border:1px solid transparent;position:relative;
  transition:all .18s ease;
}
.catalog-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:transparent;transition:background .18s ease,box-shadow .18s ease;
}
.catalog-item:hover{background:rgba(16,37,58,.9);border-color:var(--line-strong);}
.catalog-item:hover::before,.catalog-item.active::before{background:var(--primary);box-shadow:0 0 12px rgba(53,230,196,.8);}
.catalog-num{
  font-size:12px;font-weight:800;color:var(--primary);letter-spacing:.06em;
  font-family:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
.catalog-item b{font-size:15px;color:#fff;font-weight:700;line-height:1.4;}
.catalog-item i{font-size:12.5px;color:var(--weak);font-style:normal;}

/* ---------- featured ---------- */
.featured{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;}
.featured-main{
  display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.featured-main:hover{border-color:rgba(53,230,196,.42);transform:translateY(-3px);}
.featured-main .fm-cover{position:relative;min-height:280px;}
.featured-main .fm-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.featured-main .fm-body{padding:26px 24px;display:flex;flex-direction:column;gap:12px;}
.featured-main h3{font-size:23px;line-height:1.35;}
.featured-main p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}
.meta-line{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--weak);align-items:center;}
.featured-side{display:grid;gap:20px;}
.item-card{
  display:flex;gap:16px;padding:16px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.item-card:hover{border-color:rgba(53,230,196,.42);transform:translateY(-3px);box-shadow:0 16px 36px rgba(0,0,0,.34);}
.item-card img{width:118px;height:88px;object-fit:cover;border-radius:12px;flex-shrink:0;border:1px solid var(--line);}
.item-card .ic-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.item-card h4{font-size:17px;line-height:1.4;}
.item-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.65;}
.item-card .meta-line{font-size:12px;}

/* ---------- latest cms ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.news-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:var(--radius-md);
  background:linear-gradient(150deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{border-color:rgba(53,230,196,.42);transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.36);}
.news-card h3{font-size:19px;line-height:1.45;}
.news-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75;}
.news-card .nc-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;}
.read-link{font-size:13.5px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;border-radius:var(--radius-lg);text-align:center;
  border:1px dashed rgba(126,200,255,.3);background:rgba(14,34,55,.4);
}
.empty-state i{font-size:30px;color:var(--weak);}
.empty-state b{font-size:16.5px;color:#fff;}
.empty-state span{font-size:14px;color:var(--muted);}

/* ---------- recommend ---------- */
.reco-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.reco-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.reco-card:hover{border-color:rgba(53,230,196,.42);transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.34);}
.reco-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.reco-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;}
.reco-body h4{font-size:15.5px;line-height:1.45;}
.reco-body .meta-line{font-size:12px;}

/* ---------- cta toolbar ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:28px 32px;border-radius:var(--radius-lg);
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-bar h2{font-size:24px;}
.cta-bar p{margin:6px 0 0;font-size:14.5px;color:var(--muted);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.toast-note{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  background:rgba(16,37,58,.96);color:#fff;border:1px solid rgba(53,230,196,.45);
  padding:12px 22px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;z-index:2000;box-shadow:var(--shadow);
}
.toast-note.show{opacity:1;transform:translate(-50%,0);}

/* ---------- 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:20px 4px;font-size:17px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;color:var(--primary);font-size:13px;
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);border-color:var(--primary);background:rgba(53,230,196,.14);}
.faq-item .faq-body{padding:0 4px 22px;font-size:14.8px;color:var(--muted);line-height:1.85;max-width:960px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:80px;border-top:1px solid var(--line);
  background:rgba(5,11,20,.86);position:relative;z-index:2;
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:60px 0 44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:300px;}
.footer-col h5{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:13.8px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;
  border:1px solid var(--line);border-radius:999px;padding:7px 16px;background:rgba(16,37,58,.6);
}
.back-top:hover{color:var(--primary);border-color:var(--primary);}

:focus-visible{outline:2px solid rgba(53,230,196,.7);outline-offset:2px;}

@media (max-width:1199.98px){
  .topic-grid{grid-template-columns:1fr 1fr;}
  .side-topics{grid-column:1/-1;grid-template-columns:1fr 1fr;}
  .catalog{grid-template-columns:repeat(3,1fr);}
  .reco-grid{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .nav-channels,.nav-search,.nav-login,.nav-right .btn-ghost,.nav-right .btn-glow{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-inner{justify-content:space-between;}
  .hero{padding:44px 0 30px;}
  .hero-grid{grid-template-columns:1fr;gap:56px;}
  .hero-visual{max-width:560px;}
  .glass-card{position:relative;left:0;bottom:0;width:100%;margin-top:-34px;margin-left:18px;margin-right:18px;}
  .featured{grid-template-columns:1fr;}
  .featured-main{grid-template-columns:1fr;}
  .featured-main .fm-cover{min-height:220px;position:relative;aspect-ratio:16/9;}
  .featured-main .fm-cover img{position:absolute;inset:0;height:100%;}
  .news-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
}
@media (max-width:767.98px){
  .topic-grid{grid-template-columns:1fr;}
  .side-topics{grid-template-columns:1fr;}
  .catalog{grid-template-columns:repeat(2,1fr);padding:16px;}
  .reco-grid{grid-template-columns:1fr;}
  .item-card{flex-direction:column;}
  .item-card img{width:100%;height:170px;}
  .hero-stats{gap:22px;}
  .cta-bar{padding:24px 20px;}
  .footer-top{grid-template-columns:1fr;padding:44px 0 34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  body::after{display:none;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .hero h1{font-size:clamp(30px,8.4vw,38px);}
  .hero-sub{font-size:16px;}
  .btn-main,.btn-outline{width:100%;}
  .hero-actions{gap:12px;}
  .catalog{grid-template-columns:1fr;}
  .news-card{padding:20px;}
  .featured-main h3{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.32);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-soft:0 12px 28px rgba(0,0,0,.28);
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg-deep);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(53,230,196,.13), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(124,140,255,.13), transparent 66%),
    linear-gradient(180deg,#071321 0%,#050B14 60%,#04090F 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(126,200,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  z-index:-1;
  pointer-events:none;
  mask-image:radial-gradient(circle at 50% 20%, #000 30%, transparent 88%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 30%, transparent 88%);
}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:#68f5da;}
img{max-width:100%;display:block;}
h1,h2,h3,h4,h5{letter-spacing:0;margin:0;font-weight:800;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(53,230,196,.6);outline-offset:3px;border-radius:6px;}
.container{max-width:1320px;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1050;
  background:rgba(5,14,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-icon{
  width:30px;height:30px;
  display:grid;
  grid-template-columns:repeat(2,1fr);
  grid-template-rows:repeat(2,1fr);
  gap:4px;
  transform:rotate(45deg);
}
.brand-icon i{
  display:block;
  border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(53,230,196,.55);
}
.brand-icon i:nth-child(2){background:var(--secondary);box-shadow:0 0 10px rgba(124,140,255,.5);}
.brand-icon i:nth-child(3){background:var(--secondary);opacity:.72;box-shadow:none;}
.brand-icon i:nth-child(4){background:var(--primary);opacity:.72;box-shadow:none;}
.brand-name{
  font-size:20px;
  font-weight:800;
  letter-spacing:0;
  white-space:nowrap;
}
.nav-channels{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
  box-shadow:0 0 12px rgba(53,230,196,.7);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  background:rgba(12,28,45,.72);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{font-size:13px;color:var(--weak);}
.nav-search input{
  width:150px;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search:focus-within{
  border-color:rgba(53,230,196,.55);
  box-shadow:0 0 0 3px rgba(53,230,196,.14);
}
.btn-ghost-link{
  font-size:14px;
  color:var(--muted);
  padding:0 4px;
  white-space:nowrap;
}
.btn-ghost-link:hover{color:var(--primary);}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:14px;
  font-weight:600;
  background:rgba(16,37,58,.45);
  transition:all .18s ease;
  white-space:nowrap;
}
.btn-outline:hover{
  border-color:rgba(53,230,196,.55);
  color:var(--primary);
  transform:translateY(-1px);
}
.btn-primary-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border-radius:999px;
  border:0;
  font-size:14px;
  font-weight:700;
  color:#04231D;
  background:linear-gradient(135deg,#35E6C4,#7C8CFF);
  box-shadow:0 8px 24px rgba(53,230,196,.32);
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary-glow:hover{
  color:#04231D;
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(53,230,196,.46);
}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(16,37,58,.6);
  color:var(--text);
  font-size:16px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  padding:20px 24px 32px;
  border-top:1px solid var(--line);
  background:rgba(5,14,28,.97);
  backdrop-filter:blur(18px);
  max-height:calc(100vh - var(--header-h));
  overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-search{width:100%;height:48px;}
.mobile-drawer .nav-search input{width:100%;font-size:15px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin:18px 0;}
.drawer-links a{
  padding:12px 4px;
  font-size:16px;
  color:var(--muted);
  border-bottom:1px solid rgba(126,200,255,.09);
}
.drawer-links a.active{color:var(--primary);font-weight:700;}
.drawer-actions{display:flex;gap:12px;flex-wrap:wrap;}
.drawer-actions .btn-outline,.drawer-actions .btn-primary-glow{flex:1;min-width:130px;}

/* ============ article head ============ */
.article-hero{
  position:relative;
  padding:38px 0 40px;
  background-image:linear-gradient(180deg,rgba(7,19,33,.86),rgba(5,11,20,.96)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:22px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{color:rgba(126,200,255,.3);}
.breadcrumb-line .current{color:var(--weak);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  background:rgba(53,230,196,.12);
  border:1px solid rgba(53,230,196,.26);
}
.tag-pill.violet{color:var(--secondary);background:rgba(124,140,255,.13);border-color:rgba(124,140,255,.3);}
.article-title{
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.24;
  font-weight:800;
  margin:18px 0 18px;
  max-width:960px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:13.5px;
  color:var(--weak);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary);font-size:12px;}

/* ============ article body layout ============ */
.article-main{padding:56px 0 24px;}
.article-card{
  background:rgba(11,26,43,.78);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:clamp(22px,3vw,46px);
}
.article-body{
  max-width:820px;
  font-size:17px;
  line-height:1.92;
  color:#DCEBF9;
  word-wrap:break-word;
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(24px,2.4vw,30px);
  line-height:1.4;
  margin:2em 0 .8em;
  padding-left:16px;
  border-left:4px solid var(--primary);
  border-radius:2px;
}
.article-body h3{
  font-size:clamp(19px,1.9vw,23px);
  line-height:1.5;
  margin:1.7em 0 .6em;
  color:#F2FAFF;
}
.article-body h4{font-size:18px;margin:1.4em 0 .5em;}
.article-body p{margin:0 0 1.05em;color:#D2E4F4;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.15em;}
.article-body li{margin-bottom:.5em;color:#D2E4F4;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(53,230,196,.35);}
.article-body a:hover{color:#68f5da;border-bottom-color:#68f5da;}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:rgba(53,230,196,.07);
  color:#C6DCEE;
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius-sm);
  margin:1.4em auto;
  box-shadow:var(--shadow-soft);
  border:1px solid var(--line);
}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--weak);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-body thead th{
  background:rgba(53,230,196,.1);
  color:var(--text);
  font-weight:700;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line-strong);
}
.article-body tbody td{
  padding:12px 14px;
  border-bottom:1px solid rgba(126,200,255,.09);
  color:#C9DDEE;
}
.article-body tbody tr:nth-child(even){background:rgba(126,200,255,.04);}
.article-body code{
  background:rgba(124,140,255,.15);
  color:#C9D2FF;
  padding:2px 7px;
  border-radius:6px;
  font-size:14px;
}
.article-body pre{
  background:#04101C;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:18px;
  overflow-x:auto;
  margin:1.4em 0;
}
.article-body pre code{background:transparent;padding:0;color:#B9D7EE;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.empty-state{
  border:1px dashed rgba(126,200,255,.32);
  border-radius:var(--radius-md);
  background:rgba(16,37,58,.42);
  padding:52px 24px;
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--primary);opacity:.85;}
.empty-state h3{font-size:20px;margin:16px 0 8px;}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:22px;}

/* ============ sidebar ============ */
.side-sticky{
  position:sticky;
  top:calc(var(--header-h) + 20px);
  display:flex;
  flex-direction:column;
  gap:18px;
}
.side-card{
  background:rgba(12,28,45,.72);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px;
  box-shadow:var(--shadow-soft);
}
.side-card h4{
  font-size:15px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:8px;
  padding-bottom:14px;
  margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.side-card h4 i{color:var(--primary);font-size:13px;}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto;}
.toc-list li a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  transition:all .16s ease;
  line-height:1.5;
}
.toc-list li a:hover{color:var(--text);background:rgba(126,200,255,.07);border-left-color:var(--primary);}
.toc-list li.lv-3 a{padding-left:24px;font-size:13.5px;color:var(--weak);}
.meta-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.meta-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:var(--weak);
}
.meta-list li strong{color:var(--text);font-weight:600;text-align:right;word-break:break-all;}
.side-chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--muted);
  background:rgba(126,200,255,.07);
  border:1px solid var(--line);
  transition:all .16s ease;
}
.chip:hover{color:var(--primary);border-color:rgba(53,230,196,.45);background:rgba(53,230,196,.1);}

/* ============ action bar ============ */
.action-bar{
  margin:30px 0 0;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  padding:18px 22px;
  border-radius:var(--radius-md);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
}
.action-bar .bar-label{
  font-size:14px;
  color:var(--muted);
  margin-right:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.action-bar .bar-label i{color:var(--primary);}
.btn-bookmark,.btn-share{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease;
  border:1px solid var(--line-strong);
  background:rgba(16,37,58,.6);
  color:var(--text);
}
.btn-bookmark:hover{border-color:rgba(53,230,196,.55);color:var(--primary);}
.btn-bookmark.active{
  background:rgba(53,230,196,.16);
  border-color:rgba(53,230,196,.6);
  color:var(--primary);
  box-shadow:0 0 22px rgba(53,230,196,.3);
}
.btn-share:hover{border-color:rgba(124,140,255,.6);color:var(--secondary);}

/* ============ related ============ */
.related-section{padding:64px 0 24px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  display:flex;
  align-items:center;
  gap:12px;
}
.section-head h2::before{
  content:"";
  width:6px;height:26px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  box-shadow:0 0 14px rgba(53,230,196,.5);
}
.section-head p{font-size:14px;color:var(--weak);}
.rel-card{
  display:flex;
  flex-direction:column;
  height:100%;
  border-radius:var(--radius-md);
  overflow:hidden;
  background:rgba(12,28,45,.72);
  border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,230,196,.38);
  box-shadow:0 24px 46px rgba(0,0,0,.45);
}
.rel-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.rel-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.rel-card:hover .rel-cover img{transform:scale(1.05);}
.rel-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 45%,rgba(5,11,20,.72) 100%);
}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.5;}
.rel-body h3 a{color:var(--text);}
.rel-body h3 a:hover{color:var(--primary);}
.rel-body p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.rel-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--weak);
  padding-top:10px;
  border-top:1px solid rgba(126,200,255,.1);
}
.rel-foot .more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ============ back entry ============ */
.back-entry{
  padding:12px 0 72px;
}
.back-entry-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:26px 28px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(16,37,58,.75),rgba(11,26,43,.55));
  box-shadow:var(--shadow-soft);
}
.back-entry-inner h3{font-size:19px;margin-bottom:6px;}
.back-entry-inner p{font-size:14px;color:var(--muted);}
.btn-back-home{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:44px;
  padding:0 24px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:14.5px;
  font-weight:600;
  background:rgba(16,37,58,.55);
  transition:all .18s ease;
  white-space:nowrap;
}
.btn-back-home:hover{
  border-color:rgba(53,230,196,.55);
  color:var(--primary);
  transform:translateY(-2px);
}

/* ============ toast ============ */
.toast-tip{
  position:fixed;
  left:50%;
  bottom:38px;
  transform:translate(-50%,20px);
  padding:12px 24px;
  border-radius:999px;
  background:rgba(4,16,28,.95);
  border:1px solid rgba(53,230,196,.45);
  color:var(--text);
  font-size:14px;
  box-shadow:0 18px 40px rgba(0,0,0,.55);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
  z-index:2000;
}
.toast-tip.show{opacity:1;transform:translate(-50%,0);}

/* ============ footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(4,10,18,.85);
  padding:64px 0 28px;
  margin-top:20px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(126,200,255,.1);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px;}
.footer-col h5{
  font-size:14.5px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;}
.footer-col li a,.footer-col li span{font-size:13.5px;color:var(--muted);line-height:1.6;}
.footer-col li a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:var(--weak);
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--muted);
  font-size:13px;
}
.back-top:hover{color:var(--primary);}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .nav-search input{width:120px;}
  .nav-channels{gap:16px;}
}
@media (max-width:991.98px){
  .nav-channels,.header-actions .nav-search,.header-actions .btn-ghost-link,.header-actions .btn-outline{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .side-sticky{position:static;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .article-main{padding:40px 0 16px;}
  .related-section{padding:48px 0 16px;}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px;}
  .article-hero{padding:26px 0 30px;}
  .article-card{padding:20px 18px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:22px;padding-left:12px;}
  .article-body h3{font-size:19px;}
  .action-bar{padding:16px;gap:10px;}
  .action-bar .bar-label{width:100%;margin-right:0;}
  .btn-bookmark,.btn-share{flex:1;justify-content:center;padding:0 14px;}
  .back-entry{padding-bottom:52px;}
  .back-entry-inner{padding:22px 20px;}
  .back-entry-inner .btn-back-home{width:100%;justify-content:center;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:30px;}
  .site-footer{padding:48px 0 24px;}
  body::after{background-size:48px 48px;opacity:.6;}
}
@media (max-width:575.98px){
  .brand-name{font-size:18px;}
  .article-meta{gap:8px 14px;font-size:12.5px;}
  .article-title{font-size:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .toc-list{max-height:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.34);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --dur:.2s;
  --font:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-deep);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -10%, rgba(53,230,196,.10), transparent 62%),
    radial-gradient(760px 480px at 4% 10%, rgba(124,140,255,.10), transparent 60%),
    linear-gradient(180deg,#050B14 0%,#071321 46%,#050B14 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.34;
  background-image:
    linear-gradient(rgba(126,200,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 74%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 74%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) ease,border-color var(--dur) ease}
a:hover{color:var(--primary)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.26;letter-spacing:0;color:var(--text)}
p{margin:0}
button{font-family:inherit}
::selection{background:rgba(53,230,196,.28);color:#fff}

.container{max-width:1320px;padding-left:24px;padding-right:24px;position:relative;z-index:1}

/* ========== 顶部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(5,14,28,.82);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:19px;font-weight:800;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-icon{display:grid;grid-template-columns:7px 7px;grid-template-rows:7px 7px;gap:3px;width:20px;height:20px}
.brand-icon i{display:block;background:var(--primary);border-radius:2px;box-shadow:0 0 10px rgba(53,230,196,.55)}
.brand-icon i:nth-child(2){background:var(--secondary);box-shadow:0 0 10px rgba(124,140,255,.55)}
.brand-icon i:nth-child(3){opacity:.75}
.brand-icon i:nth-child(4){opacity:.5}
.brand-name{white-space:nowrap}

.nav-channels{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) ease;
  box-shadow:0 0 10px rgba(53,230,196,.6);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:#fff;font-weight:700}
.nav-link:focus-visible{outline:2px solid rgba(53,230,196,.6);outline-offset:4px;border-radius:4px}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 6px 0 16px;
  border-radius:999px;background:rgba(15,34,54,.72);border:1px solid var(--line);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.nav-search:focus-within{border-color:rgba(53,230,196,.55);box-shadow:0 0 0 3px rgba(53,230,196,.14)}
.nav-search input{width:144px;background:transparent;border:0;outline:none;color:var(--text);font-size:14px;font-family:inherit}
.nav-search input::placeholder{color:var(--weak)}
.nav-search button{
  width:30px;height:30px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(53,230,196,.12);color:var(--primary);
  display:grid;place-items:center;transition:background var(--dur) ease;
}
.nav-search button:hover{background:rgba(53,230,196,.26)}
.login-link{font-size:14px;font-weight:500;color:var(--muted);padding:8px 4px;white-space:nowrap}
.login-link:hover{color:var(--primary)}

.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border:0;border-radius:999px;cursor:pointer;
  background:linear-gradient(120deg,var(--primary),#28C9D8);
  color:#04211C;font-size:14px;font-weight:800;white-space:nowrap;
  box-shadow:0 8px 24px rgba(53,230,196,.28),inset 0 1px 0 rgba(255,255,255,.42);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,filter var(--dur) ease;
}
.btn-glow:hover{color:#04211C;transform:translateY(-1px);box-shadow:0 12px 30px rgba(53,230,196,.42),inset 0 1px 0 rgba(255,255,255,.5)}
.btn-glow:active{transform:translateY(0)}
.btn-glow:focus-visible{outline:2px solid rgba(53,230,196,.65);outline-offset:3px}

.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 18px;border-radius:12px;cursor:pointer;
  background:rgba(16,37,58,.66);border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;font-weight:600;white-space:nowrap;
  transition:transform var(--dur) ease,border-color var(--dur) ease,background var(--dur) ease,box-shadow var(--dur) ease;
}
.btn-line:hover{color:var(--text);transform:translateY(-1px);border-color:rgba(53,230,196,.5);background:rgba(20,46,70,.8);box-shadow:0 10px 26px rgba(0,0,0,.34)}
.btn-line:focus-visible{outline:2px solid rgba(53,230,196,.6);outline-offset:3px}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;cursor:pointer;
  border:1px solid var(--line);background:rgba(16,37,58,.7);color:var(--text);
  place-items:center;font-size:16px;
  transition:border-color var(--dur) ease,color var(--dur) ease;
}
.nav-toggle:hover{border-color:rgba(53,230,196,.5);color:var(--primary)}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:1100;display:none;flex-direction:column;
  padding:20px 22px 34px;overflow-y:auto;
  background:rgba(5,14,28,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
}
.mobile-drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(16,37,58,.7);color:var(--text);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(53,230,196,.5)}
.drawer-search{display:flex;align-items:center;gap:8px;height:48px;margin-top:18px;padding:0 8px 0 16px;border-radius:12px;background:rgba(15,34,54,.9);border:1px solid var(--line)}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:15px;font-family:inherit}
.drawer-search input::placeholder{color:var(--weak)}
.drawer-search button{width:34px;height:34px;border-radius:10px;border:0;background:rgba(53,230,196,.14);color:var(--primary);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:20px 0 24px}
.drawer-nav a{padding:14px 14px;border-radius:12px;font-size:16px;color:var(--muted);border:1px solid transparent;transition:all var(--dur) ease}
.drawer-nav a.active,.drawer-nav a:hover{color:var(--text);background:rgba(53,230,196,.08);border-color:rgba(53,230,196,.24)}
.drawer-actions{display:flex;gap:12px;margin-top:auto;padding-top:18px}
.drawer-actions .btn-glow,.drawer-actions .btn-line{flex:1}

/* ========== 通用板块 ========== */
.section{padding:64px 0;position:relative;z-index:1}
.section-tight{padding:48px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.sec-title{font-size:clamp(23px,2.9vw,31px);display:flex;align-items:center;gap:12px}
.sec-title::before{
  content:"";width:5px;height:24px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  box-shadow:0 0 14px rgba(53,230,196,.5);
}
.sec-desc{color:var(--muted);font-size:15px;margin-top:8px;max-width:600px}
.sec-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-more:hover{gap:10px}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);padding:22px 0 0;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb span{color:rgba(111,138,163,.6)}
.crumb em{font-style:normal;color:var(--text)}

/* ========== Hero ========== */
.page-hero{position:relative;z-index:1;padding:26px 0 12px}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-60px;width:520px;height:420px;pointer-events:none;
  background:radial-gradient(circle,rgba(53,230,196,.16),transparent 68%);
  filter:blur(10px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--primary);background:rgba(53,230,196,.10);
  border:1px solid rgba(53,230,196,.26);margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
h1.hero-title{font-size:clamp(32px,4.6vw,54px);line-height:1.14;font-weight:800}
h1.hero-title .hl{
  color:var(--primary);
  background-image:linear-gradient(90deg,rgba(53,230,196,.55),rgba(124,140,255,.45));
  background-repeat:no-repeat;background-position:0 100%;background-size:100% 6px;
  padding-bottom:4px;
}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:var(--muted);margin-top:18px;max-width:600px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.stat-chip{
  padding:12px 18px;border-radius:14px;background:rgba(16,37,58,.62);
  border:1px solid var(--line);min-width:118px;
}
.stat-chip b{display:block;font-size:20px;font-weight:800;color:var(--text);line-height:1.3}
.stat-chip span{font-size:12.5px;color:var(--weak)}

.hero-visual{position:relative}
.hero-visual > img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--shadow);opacity:.92;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);pointer-events:none;
  background:linear-gradient(180deg,rgba(5,11,20,.06),rgba(5,11,20,.74));
}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:18px;
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:0 18px 42px rgba(0,0,0,.36);
}
.hero-info{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;padding:18px 20px}
.hero-info-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--primary);margin-bottom:12px}
.hero-info ul{display:flex;flex-direction:column;gap:9px}
.hero-info li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.hero-info li b{color:var(--text);font-weight:700;font-size:13.5px}
.link-arrow{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--primary)}
.link-arrow:hover{gap:11px}

/* 锚点目录条 */
.anchor-bar{
  display:flex;align-items:center;gap:16px;margin-top:34px;padding:14px 18px;
  border-radius:16px;background:rgba(16,37,58,.55);border:1px solid var(--line);
  flex-wrap:wrap;
}
.anchor-label{font-size:12.5px;font-weight:700;color:var(--weak);letter-spacing:0;white-space:nowrap}
.anchor-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-item{
  display:inline-flex;align-items:center;gap:9px;padding:8px 15px 8px 10px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);white-space:nowrap;
  background:rgba(11,26,43,.8);border:1px solid var(--line);
  transition:all var(--dur) ease;
}
.anchor-item:hover{color:var(--text);border-color:rgba(53,230,196,.45);background:rgba(53,230,196,.08)}
.badge-num{
  display:inline-grid;place-items:center;width:22px;height:22px;border-radius:7px;
  font-size:11px;font-weight:800;font-style:normal;
  background:rgba(53,230,196,.16);color:var(--primary);
}

/* ========== 主题大卡 ========== */
.topic-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,37,58,.92),rgba(11,26,43,.94));
  box-shadow:var(--shadow);
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.topic-card:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.38);box-shadow:0 28px 62px rgba(0,0,0,.46)}
.topic-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden}
.topic-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.topic-card:hover .topic-cover img{transform:scale(1.04)}
.topic-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.06),rgba(5,11,20,.72))}
.topic-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:#04211C;background:rgba(53,230,196,.92);
  box-shadow:0 6px 18px rgba(53,230,196,.28);
}
.topic-tag.alt{background:rgba(124,140,255,.92);color:#0A0F2B;box-shadow:0 6px 18px rgba(124,140,255,.3)}
.topic-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.topic-body h3{font-size:clamp(19px,2vw,22px)}
.topic-body h3 a:hover{color:var(--primary)}
.topic-body p{font-size:14.5px;color:var(--muted);line-height:1.8}
.topic-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:auto;padding-top:8px;font-size:13px;color:var(--weak)}
.topic-meta i{margin-right:6px;color:var(--secondary)}
.save-btn{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;cursor:pointer;font-size:12.5px;font-weight:600;
  background:rgba(126,200,255,.08);border:1px solid var(--line);color:var(--muted);
  transition:all var(--dur) ease;
}
.save-btn:hover{color:var(--primary);border-color:rgba(53,230,196,.45)}
.save-btn.is-saved{color:var(--primary);background:rgba(53,230,196,.14);border-color:rgba(53,230,196,.5);box-shadow:0 0 16px rgba(53,230,196,.22)}

/* ========== 条目 ========== */
.entry-feature{
  display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:24px;
  padding:22px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(16,37,58,.9),rgba(11,26,43,.94));
  box-shadow:var(--shadow);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
  margin-bottom:20px;
}
.entry-feature:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.35)}
.entry-feature-media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3}
.entry-feature-media img{width:100%;height:100%;object-fit:cover}
.entry-feature-body{display:flex;flex-direction:column;gap:12px;justify-content:center}
.entry-feature-body h3{font-size:clamp(20px,2.2vw,25px)}
.entry-feature-body p{color:var(--muted);font-size:15px;line-height:1.85}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.entry-card{
  display:flex;flex-direction:column;gap:11px;padding:22px 22px 20px;
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.35);background:var(--surface-2);box-shadow:0 16px 38px rgba(0,0,0,.32)}
.entry-card h3{font-size:18px;line-height:1.5}
.entry-card h3 a:hover{color:var(--primary)}
.entry-card p{font-size:14px;color:var(--muted);line-height:1.8}
.entry-foot{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:auto;padding-top:10px;font-size:12.5px;color:var(--weak)}
.entry-foot .tag{
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--primary);background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.22);
}
.entry-foot .tag.purple{color:var(--secondary);background:rgba(124,140,255,.12);border-color:rgba(124,140,255,.24)}
.entry-foot .tag.orange{color:var(--accent);background:rgba(255,122,89,.12);border-color:rgba(255,122,89,.24)}
.entry-foot .time{margin-left:auto;font-variant-numeric:tabular-nums}

/* ========== FAQ ========== */
.faq-wrap{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 4px;background:transparent;border:0;cursor:pointer;
  font-size:16.5px;font-weight:700;color:var(--text);line-height:1.5;
}
.faq-q:hover{color:var(--primary)}
.faq-q .sign{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;color:var(--primary);
  background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.24);
  transition:transform var(--dur) ease;
}
.faq-q[aria-expanded="true"] .sign{transform:rotate(45deg)}
.faq-a{display:none;padding:0 4px 22px;font-size:14.5px;line-height:1.85;color:var(--muted);max-width:820px}
.faq-a.open{display:block}

/* ========== 相关推荐 ========== */
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--surface);
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.35);box-shadow:0 16px 36px rgba(0,0,0,.32)}
.rel-thumb{display:block;aspect-ratio:16/9;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:8px}
.rel-body h4{font-size:15.5px;line-height:1.55}
.rel-body h4 a:hover{color:var(--primary)}
.rel-body span{font-size:12.5px;color:var(--weak)}

/* ========== CTA 工具条 ========== */
.cta-bar{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:26px 28px;border-radius:var(--r-lg);
}
.cta-bar .cta-text{flex:1;min-width:240px}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-bar p{font-size:14.5px;color:var(--muted)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* toast */
.toast-tip{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,18px);
  z-index:2000;padding:12px 22px;border-radius:999px;
  background:rgba(5,14,28,.96);border:1px solid rgba(53,230,196,.4);
  color:var(--text);font-size:14px;font-weight:600;
  box-shadow:0 18px 40px rgba(0,0,0,.5);
  opacity:0;pointer-events:none;transition:opacity var(--dur) ease,transform var(--dur) ease;
}
.toast-tip.show{opacity:1;transform:translate(-50%,0)}

/* ========== 页脚 ========== */
.site-footer{
  position:relative;z-index:1;margin-top:48px;padding:56px 0 26px;
  background:rgba(5,11,20,.72);border-top:1px solid var(--line);
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h5{font-size:14.5px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--weak);
}
.back-top{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}
.back-top:hover{color:var(--primary)}

/* ========== 响应式 ========== */
@media (max-width:1199.98px){
  .nav-search input{width:112px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1080px){
  .nav-channels{display:none}
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .header-inner{gap:12px}
}
@media (max-width:991.98px){
  .section{padding:52px 0}
  .hero-visual{margin-top:6px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .entry-feature{grid-template-columns:1fr}
  .entry-feature-media{aspect-ratio:16/9}
}
@media (max-width:767.98px){
  body::after{display:none}
  .container{padding-left:18px;padding-right:18px}
  .header-inner{height:64px}
  .brand{font-size:17px}
  .entry-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:20px}
  .anchor-bar{padding:12px 14px;gap:10px}
  .anchor-label{display:none}
  .cta-bar{padding:22px}
  .hero-stats{gap:10px}
  .stat-chip{flex:1 1 40%;min-width:0;padding:10px 14px}
  .stat-chip b{font-size:18px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:44px}
}
@media (max-width:575.98px){
  h1.hero-title{font-size:clamp(28px,8vw,34px)}
  .hero-sub{font-size:15.5px;margin-top:14px}
  .hero-actions{gap:10px}
  .hero-actions .btn-glow,.hero-actions .btn-line{width:100%}
  .rel-grid{grid-template-columns:1fr}
  .btn-ghost-hide{display:none}
  .topic-body{padding:18px 18px 20px}
  .entry-card{padding:18px}
  .entry-feature{padding:16px}
  .cta-actions .btn-glow,.cta-actions .btn-line{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.34);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-hover:0 28px 60px rgba(0,0,0,.5);
  --t:180ms ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    radial-gradient(circle at 82% 4%,rgba(53,230,196,.10),transparent 46%),
    radial-gradient(circle at 8% 22%,rgba(124,140,255,.10),transparent 42%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-deep) 62%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(126,200,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(126,200,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  z-index:-1;
  pointer-events:none;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary);}
button{font-family:inherit;}
.container{max-width:1320px;padding-left:24px;padding-right:24px;margin:0 auto;}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:0;line-height:1.24;margin:0;color:var(--text);}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid rgba(53,230,196,.7);outline-offset:3px;border-radius:6px;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(5,14,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:22px;height:22px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  transform:rotate(45deg);
}
.brand-icon i{
  display:block;
  background:var(--primary);
  border-radius:2px;
  box-shadow:0 0 8px rgba(53,230,196,.4);
}
.brand-icon i:nth-child(2){background:var(--secondary);}
.brand-icon i:nth-child(3){background:var(--secondary);opacity:.75;}
.brand-icon i:nth-child(4){opacity:.55;}
.brand-name{
  font-size:19px;
  font-weight:800;
  color:var(--text);
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--primary);}
.nav-channels{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
  transition:color var(--t);
}
.nav-link:hover{color:var(--text);}
.nav-link.active{color:var(--text);font-weight:500;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px var(--primary);
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{position:relative;}
.nav-search i{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--weak);
  pointer-events:none;
}
.nav-search input{
  width:190px;
  height:40px;
  border-radius:999px;
  background:rgba(14,34,55,.7);
  border:1px solid var(--line);
  color:var(--text);
  font-size:14px;
  padding:0 16px 0 36px;
  transition:border-color var(--t),box-shadow var(--t),width var(--t),background var(--t);
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search input:focus{
  outline:none;
  width:220px;
  border-color:rgba(53,230,196,.6);
  background:rgba(16,37,58,.9);
  box-shadow:0 0 0 3px rgba(53,230,196,.14);
}
.btn-login{
  background:none;
  border:0;
  color:var(--muted);
  font-size:14px;
  padding:6px 4px;
  cursor:pointer;
  transition:color var(--t);
}
.btn-login:hover{color:var(--text);}
.btn-outline-soft{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:40px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(16,37,58,.5);
  color:var(--text);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:border-color var(--t),background var(--t),transform var(--t),color var(--t);
}
.btn-outline-soft:hover{
  border-color:rgba(53,230,196,.6);
  color:var(--primary);
  background:rgba(53,230,196,.08);
  transform:translateY(-1px);
}
.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border:0;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),#2FBEE6);
  color:#04121C;
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  box-shadow:0 0 0 1px rgba(53,230,196,.4),0 10px 26px rgba(53,230,196,.28);
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.btn-glow:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,230,196,.6),0 16px 36px rgba(53,230,196,.4);
  color:#04121C;
  filter:brightness(1.05);
}
.btn-glow:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(16,37,58,.7);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
  transition:border-color var(--t),color var(--t);
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--primary);}
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:1050;
  background:rgba(5,14,28,.97);
  backdrop-filter:blur(22px);
  -webkit-backdrop-filter:blur(22px);
  padding:20px 22px 34px;
  overflow-y:auto;
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mobile-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.mobile-close{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(16,37,58,.7);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
}
.mobile-search{
  position:relative;
  margin-bottom:20px;
}
.mobile-search i{
  position:absolute;
  left:16px;top:50%;
  transform:translateY(-50%);
  color:var(--weak);
  font-size:14px;
}
.mobile-search input{
  width:100%;
  height:48px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text);
  padding:0 16px 0 42px;
  font-size:15px;
}
.mobile-search input:focus{
  outline:none;
  border-color:rgba(53,230,196,.6);
  box-shadow:0 0 0 3px rgba(53,230,196,.14);
}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.mobile-nav a{
  padding:14px 4px;
  font-size:16px;
  color:var(--muted);
  border-bottom:1px solid rgba(126,200,255,.1);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.mobile-nav a.active{color:var(--primary);}
.mobile-nav a i{font-size:12px;color:var(--weak);}
.mobile-actions{display:flex;flex-direction:column;gap:12px;}
.mobile-actions .btn-glow{height:48px;font-size:15px;}
.mobile-actions .btn-outline-soft{height:48px;justify-content:center;font-size:15px;}

/* ============ breadcrumb ============ */
.crumb-bar{padding:22px 0 0;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--weak);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{opacity:.5;}
.crumb span.current{color:var(--text);}

/* ============ page hero ============ */
.page-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow);
  background-image:linear-gradient(105deg,rgba(7,19,33,.96) 0%,rgba(7,19,33,.86) 48%,rgba(7,19,33,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:1.4fr .6fr;
  gap:32px;
  align-items:center;
  padding:48px 44px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(53,230,196,.12);
  border:1px solid rgba(53,230,196,.28);
  color:var(--primary);
  font-size:13px;
  font-weight:500;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(32px,4vw,50px);
  line-height:1.12;
  margin-bottom:16px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
  position:relative;
}
.page-hero h1 em::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:3px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  opacity:.7;
}
.hero-lead{
  max-width:640px;
  font-size:15.5px;
  color:var(--muted);
  line-height:1.85;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.stat-box{
  min-width:130px;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  background:rgba(11,26,43,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.stat-box strong{
  display:block;
  font-size:22px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
}
.stat-box span{font-size:12.5px;color:var(--weak);}
.hero-cover{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  aspect-ratio:16/10;
}
.hero-cover img{width:100%;height:100%;object-fit:cover;}
.hero-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 40%,rgba(5,11,20,.82) 100%);
}
.hero-cover-cap{
  position:absolute;
  left:16px;right:16px;bottom:14px;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--muted);
}
.hero-cover-cap b{color:var(--text);font-size:14px;font-weight:700;}

/* ============ section title ============ */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-bottom:24px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);}
.sec-head .sec-desc{font-size:14px;color:var(--muted);margin-top:8px;}
.sec-link{
  font-size:14px;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid rgba(53,230,196,.28);
  background:rgba(53,230,196,.08);
  transition:background var(--t),transform var(--t),border-color var(--t);
}
.sec-link:hover{background:rgba(53,230,196,.16);transform:translateY(-1px);border-color:rgba(53,230,196,.5);color:var(--primary);}

/* ============ main two column ============ */
.main-block{padding:56px 0 0;}
.entry-list{display:flex;flex-direction:column;gap:20px;}
.entry-row{
  display:flex;
  gap:18px;
  padding:18px;
  border-radius:var(--radius-md);
  background:rgba(11,26,43,.72);
  border:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.26);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t);
}
.entry-row:hover{
  transform:translateY(-2px);
  border-color:rgba(53,230,196,.35);
  box-shadow:var(--shadow-hover);
  background:rgba(16,37,58,.82);
}
.entry-thumb{
  flex:0 0 220px;
  aspect-ratio:4/3;
  border-radius:12px;
  overflow:hidden;
  position:relative;
  background:var(--surface-2);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.entry-row:hover .entry-thumb img{transform:scale(1.05);}
.entry-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 45%,rgba(5,11,20,.55) 100%);
}
.entry-body{flex:1;min-width:0;display:flex;flex-direction:column;}
.entry-top{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:rgba(53,230,196,.12);
  color:var(--primary);
  border:1px solid rgba(53,230,196,.2);
  white-space:nowrap;
}
.tag.tag-purple{background:rgba(124,140,255,.14);color:#B7C0FF;border-color:rgba(124,140,255,.26);}
.tag.tag-orange{background:rgba(255,122,89,.13);color:#FFAD97;border-color:rgba(255,122,89,.28);}
.entry-title{
  font-size:19px;
  font-weight:700;
  line-height:1.42;
  color:var(--text);
  margin-bottom:8px;
  display:block;
}
.entry-title:hover{color:var(--primary);}
.entry-desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.78;
  margin-bottom:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--weak);
}
.entry-meta i{font-size:11.5px;margin-right:5px;opacity:.8;}
.entry-meta .go{
  margin-left:auto;
  color:var(--primary);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
}
.entry-meta .go i{margin:0;font-size:11px;}

/* ============ sidebar ============ */
.side-col{position:relative;}
.side-sticky{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.panel{
  border-radius:var(--radius-md);
  background:rgba(11,26,43,.78);
  border:1px solid var(--line);
  padding:20px;
  box-shadow:0 14px 34px rgba(0,0,0,.26);
}
.panel-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:15.5px;
  font-weight:700;
  margin-bottom:16px;
}
.panel-title i{color:var(--primary);font-size:13px;margin-right:7px;}
.panel-title small{font-size:12px;color:var(--weak);font-weight:400;}
.filter-group{margin-bottom:18px;}
.filter-group:last-of-type{margin-bottom:16px;}
.filter-group h4{
  font-size:12.5px;
  font-weight:500;
  color:var(--weak);
  margin-bottom:10px;
  letter-spacing:0;
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:6px 13px;
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background:rgba(16,37,58,.7);
  border:1px solid var(--line);
  cursor:pointer;
  transition:all var(--t);
}
.chip:hover{border-color:var(--line-strong);color:var(--text);}
.chip.active{
  background:rgba(53,230,196,.16);
  border-color:rgba(53,230,196,.5);
  color:var(--primary);
  font-weight:500;
}
.panel-btn{
  width:100%;
  height:42px;
  border-radius:12px;
  border:1px solid rgba(53,230,196,.4);
  background:rgba(53,230,196,.1);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all var(--t);
}
.panel-btn:hover{background:rgba(53,230,196,.2);transform:translateY(-1px);}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;}
.hot-tags a{
  padding:5px 11px;
  border-radius:8px;
  font-size:12.5px;
  color:var(--muted);
  background:rgba(16,37,58,.6);
  border:1px solid var(--line);
  transition:all var(--t);
}
.hot-tags a:hover{border-color:rgba(53,230,196,.45);color:var(--primary);background:rgba(53,230,196,.1);}
.side-item{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid rgba(126,200,255,.1);
}
.side-item:last-child{border-bottom:0;padding-bottom:0;}
.side-item:first-of-type{padding-top:0;}
.side-thumb{
  flex:0 0 76px;
  aspect-ratio:4/3;
  border-radius:9px;
  overflow:hidden;
  background:var(--surface-2);
}
.side-thumb img{width:100%;height:100%;object-fit:cover;}
.side-item h5{
  font-size:14px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:5px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.side-item h5 a:hover{color:var(--primary);}
.side-item span{font-size:12px;color:var(--weak);}
.note-card{
  border-radius:var(--radius-md);
  padding:18px 20px;
  border:1px dashed rgba(126,200,255,.28);
  background:rgba(16,37,58,.42);
  font-size:13px;
  color:var(--muted);
  line-height:1.8;
}
.note-card strong{color:var(--text);display:block;margin-bottom:6px;font-size:14px;}
.note-card i{color:var(--secondary);margin-right:6px;}

/* ============ faq ============ */
.faq-block{padding:72px 0 0;}
.faq-wrap{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 24px;
}
.faq-item{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(11,26,43,.7);
  padding:0 20px;
  transition:border-color var(--t),background var(--t);
}
.faq-item.open{border-color:rgba(53,230,196,.35);background:rgba(16,37,58,.8);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:18px 0;
  background:none;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  line-height:1.5;
}
.faq-q i{
  flex-shrink:0;
  font-size:13px;
  color:var(--primary);
  transition:transform var(--t);
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms ease,padding var(--t);
}
.faq-item.open .faq-a{max-height:320px;padding-bottom:18px;}
.faq-a p{font-size:14px;color:var(--muted);line-height:1.85;}

/* ============ cta ============ */
.cta-block{padding:64px 0 0;}
.cta-bar{
  border-radius:var(--radius-lg);
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  background:linear-gradient(112deg,rgba(14,34,55,.88),rgba(16,37,58,.62));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.cta-bar h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px;}
.cta-bar p{font-size:14px;color:var(--muted);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-glow{height:46px;padding:0 24px;font-size:15px;}
.cta-actions .btn-outline-soft{height:46px;padding:0 22px;font-size:15px;}

/* ============ toast ============ */
.toast-msg{
  position:fixed;
  left:50%;
  bottom:34px;
  transform:translate(-50%,20px);
  z-index:1200;
  padding:12px 22px;
  border-radius:999px;
  background:rgba(5,14,28,.94);
  border:1px solid rgba(53,230,196,.4);
  color:var(--primary);
  font-size:14px;
  box-shadow:0 16px 40px rgba(0,0,0,.55);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.toast-msg.show{opacity:1;visibility:visible;transform:translate(-50%,0);}

/* ============ footer ============ */
.site-footer{
  margin-top:88px;
  border-top:1px solid var(--line);
  background:rgba(5,14,28,.74);
  padding:56px 0 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(126,200,255,.12);
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{
  font-size:13.5px;
  color:var(--weak);
  line-height:1.85;
  max-width:320px;
}
.footer-col h5{
  font-size:14.5px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li a,
.footer-col li span{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.6;
}
.footer-col li a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:12.5px;
  color:var(--weak);
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--muted);
  font-size:12.5px;
}
.back-top:hover{color:var(--primary);}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .nav-search input{width:150px;}
  .nav-search input:focus{width:170px;}
  .nav-channels{gap:16px;}
  .entry-thumb{flex:0 0 190px;}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:1/-1;}
}
@media (max-width:991.98px){
  .nav-channels,.nav-search,.btn-login,.nav-actions .btn-outline-soft,.nav-actions .btn-glow{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .header-inner{height:66px;gap:14px;}
  .page-hero-inner{grid-template-columns:1fr;padding:34px 26px;gap:24px;}
  .hero-cover{max-width:520px;}
  .side-sticky{position:static;top:auto;}
  .side-col{margin-top:4px;}
  .faq-wrap{grid-template-columns:1fr;}
  .entry-thumb{flex:0 0 170px;}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px;}
  .main-block{padding-top:40px;}
  .page-hero{margin-top:14px;}
  .page-hero-inner{padding:28px 20px;}
  .hero-stats{gap:10px;}
  .stat-box{flex:1 1 130px;min-width:0;padding:12px 14px;}
  .entry-row{flex-direction:column;padding:14px;}
  .entry-thumb{flex:none;width:100%;aspect-ratio:16/9;}
  .entry-title{font-size:17.5px;}
  .entry-meta .go{margin-left:0;width:100%;padding-top:4px;}
  .cta-bar{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-outline-soft{flex:1 1 46%;justify-content:center;}
  .faq-block{padding-top:52px;}
  .cta-block{padding-top:48px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1/-1;}
  .site-footer{margin-top:60px;padding-top:42px;}
  .sec-head{margin-bottom:18px;}
}
@media (max-width:519.98px){
  .entry-desc{-webkit-line-clamp:3;}
  .footer-top{grid-template-columns:1fr;}
  .footer-col:last-child{grid-column:auto;}
  .hero-cover-cap{font-size:11.5px;}
  .footer-bottom{font-size:12px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-glow,.cta-actions .btn-outline-soft{flex:1 1 auto;width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.34);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-soft:0 12px 30px rgba(0,0,0,.26);
  --ease:180ms cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    linear-gradient(180deg,rgba(5,11,20,.84) 0%,rgba(7,19,33,.92) 42%,rgba(5,11,20,.97) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center top;
  background-attachment:fixed;
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(760px 460px at 82% -6%,rgba(53,230,196,.12),transparent 66%),
    radial-gradient(700px 420px at 6% 12%,rgba(124,140,255,.12),transparent 68%),
    linear-gradient(rgba(126,200,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(126,200,255,.045) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  opacity:.85;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--text);}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:0;line-height:1.25;margin:0;color:var(--text);}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(53,230,196,.6);outline-offset:3px;border-radius:6px;}

.container{max-width:1320px;padding-left:24px;padding-right:24px;position:relative;z-index:1;}
.page-main{position:relative;z-index:1;}
.section{padding:76px 0;}
.section-sm{padding:52px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px;}
.section-link{font-size:14px;color:var(--muted);display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.section-link:hover{color:var(--primary);}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(5,14,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  min-height:72px;
  display:flex;align-items:center;gap:22px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-icon{
  width:30px;height:30px;display:grid;grid-template-columns:1fr 1fr;gap:3px;flex:0 0 auto;
}
.brand-icon i{
  display:block;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),rgba(53,230,196,.25));
  box-shadow:0 0 10px rgba(53,230,196,.35);
}
.brand-icon i:nth-child(2){background:linear-gradient(135deg,rgba(53,230,196,.9),rgba(124,140,255,.6));}
.brand-icon i:nth-child(3){background:linear-gradient(135deg,rgba(124,140,255,.75),rgba(53,230,196,.5));}
.brand-icon i:nth-child(4){background:linear-gradient(135deg,rgba(53,230,196,.45),rgba(124,140,255,.85));}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:12px;flex:1 1 auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;white-space:nowrap;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(53,230,196,0));
  opacity:0;transform:scaleX(.4);transform-origin:left;
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,.nav-link.active::after{opacity:1;transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:190px;height:40px;border-radius:999px;
  background:rgba(11,26,43,.78);
  border:1px solid var(--line);
  color:var(--text);font-size:14px;padding:0 42px 0 16px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search input:focus{
  outline:none;border-color:rgba(53,230,196,.62);
  background:rgba(11,26,43,.95);
  box-shadow:0 0 0 3px rgba(53,230,196,.16),0 0 22px rgba(53,230,196,.2);
}
.nav-search button{
  position:absolute;right:5px;width:32px;height:32px;border-radius:50%;
  border:0;background:transparent;color:var(--muted);
  display:grid;place-items:center;font-size:13px;cursor:pointer;transition:color var(--ease);
}
.nav-search button:hover{color:var(--primary);}
.login-link{font-size:14px;color:var(--muted);white-space:nowrap;}
.login-link:hover{color:var(--primary);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);color:var(--text);font-size:14px;
  background:rgba(16,37,58,.45);
  transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.btn-ghost:hover{border-color:rgba(53,230,196,.6);color:var(--text);background:rgba(16,37,58,.85);transform:translateY(-1px);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 20px;border-radius:999px;border:0;
  background:linear-gradient(120deg,var(--primary),#2BC7E0);
  color:#04121A;font-size:14px;font-weight:700;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(53,230,196,.4),0 10px 26px rgba(53,230,196,.28);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-glow:hover{
  color:#04121A;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,230,196,.6),0 16px 34px rgba(53,230,196,.36);
  filter:brightness(1.04);
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(16,37,58,.6);color:var(--text);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.mobile-drawer{
  display:none;
  position:fixed;inset:0;z-index:1050;
  background:rgba(5,11,20,.92);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:22px 20px 40px;
  overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:rgba(16,37,58,.7);color:var(--text);font-size:16px;cursor:pointer;
}
.drawer-search{margin-bottom:22px;}
.drawer-search input{
  width:100%;height:48px;border-radius:var(--radius-sm);
  background:rgba(11,26,43,.9);border:1px solid var(--line);
  color:var(--text);font-size:15px;padding:0 16px;
}
.drawer-search input:focus{outline:none;border-color:rgba(53,230,196,.62);box-shadow:0 0 0 3px rgba(53,230,196,.16);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px;}
.drawer-nav a{
  padding:14px 6px;font-size:16px;color:var(--muted);
  border-bottom:1px solid rgba(126,200,255,.1);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}
.drawer-actions .btn-glow,.drawer-actions .btn-ghost{height:48px;justify-content:center;width:100%;}

/* ============ Breadcrumb ============ */
.crumb-bar{padding:20px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(111,138,163,.6);}
.crumb .current{color:var(--primary);}

/* ============ Hero ============ */
.cat-hero{padding:26px 0 0;}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;
  background:rgba(53,230,196,.12);color:var(--primary);
  border:1px solid rgba(53,230,196,.28);margin-bottom:18px;
}
.hero-title{font-size:clamp(32px,4.2vw,52px);line-height:1.14;font-weight:800;}
.hero-title .hl{
  color:var(--primary);
  box-shadow:inset 0 -10px 0 rgba(53,230,196,.16);
}
.hero-sub{margin-top:18px;color:var(--muted);font-size:16.5px;max-width:620px;line-height:1.85;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;
  padding:12px 18px;border-radius:var(--radius-sm);
  background:rgba(11,26,43,.7);border:1px solid var(--line);
}
.stat-pill b{font-size:20px;color:var(--primary);font-weight:800;}
.stat-pill span{font-size:13px;color:var(--weak);}
.hero-visual{position:relative;}
.hero-visual figure{
  margin:0;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  position:relative;aspect-ratio:16/11;
}
.hero-visual figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.05) 30%,rgba(5,11,20,.72) 100%);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-glass{
  position:absolute;left:-18px;bottom:-18px;width:min(78%,300px);
  background:var(--glass);border:1px solid var(--line-strong);
  border-radius:var(--radius);padding:16px 18px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
}
.hero-glass .g-label{font-size:12px;color:var(--weak);margin-bottom:6px;}
.hero-glass .g-title{font-size:15px;font-weight:700;color:var(--text);}
.hero-glass .g-meta{display:flex;gap:14px;margin-top:10px;font-size:12.5px;color:var(--muted);}
.hero-glass .g-meta i{color:var(--primary);margin-right:5px;}

/* ============ Filter chips ============ */
.filter-panel{
  margin-top:44px;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:18px 20px;border-radius:var(--radius-lg);
  background:rgba(11,26,43,.62);border:1px solid var(--line);
}
.filter-label{font-size:13px;color:var(--weak);margin-right:6px;letter-spacing:.5px;}
.chip{
  height:38px;padding:0 18px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line);background:rgba(16,37,58,.55);
  color:var(--muted);font-size:14px;
  transition:all var(--ease);
}
.chip:hover{border-color:rgba(53,230,196,.5);color:var(--text);transform:translateY(-1px);}
.chip.is-active{
  background:rgba(53,230,196,.16);border-color:rgba(53,230,196,.6);
  color:var(--primary);font-weight:600;
  box-shadow:0 0 18px rgba(53,230,196,.2);
}

/* ============ Card matrix ============ */
.matrix-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;margin-top:30px;
}
.schedule-card{
  display:flex;flex-direction:column;height:100%;
  background:linear-gradient(180deg,rgba(16,37,58,.86),rgba(11,26,43,.92));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.schedule-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,230,196,.42);
  box-shadow:0 26px 54px rgba(0,0,0,.45),0 0 0 1px rgba(53,230,196,.2);
}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;flex:0 0 auto;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.schedule-card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 34%,rgba(5,11,20,.82) 100%);
}
.cover-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(5,11,20,.72);color:var(--primary);
  border:1px solid rgba(53,230,196,.4);
  backdrop-filter:blur(8px);
}
.cover-badge.hot{color:var(--accent);border-color:rgba(255,122,89,.5);background:rgba(40,14,10,.66);}
.cover-time{
  position:absolute;left:14px;bottom:12px;z-index:2;
  font-size:12.5px;color:var(--muted);
}
.cover-time i{color:var(--primary);margin-right:6px;}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1 1 auto;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;}
.card-title a{color:var(--text);}
.card-title a:hover{color:var(--primary);}
.card-desc{font-size:14px;color:var(--muted);line-height:1.75;flex:1 1 auto;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid rgba(126,200,255,.1);
}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;font-size:12px;
  background:rgba(124,140,255,.14);color:#AAB4FF;
  border:1px solid rgba(124,140,255,.26);
}
.card-enter{font-size:13px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.card-enter:hover{gap:9px;}
.empty-block{
  display:none;margin-top:30px;padding:52px 24px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  background:rgba(11,26,43,.48);
}
.empty-block.show{display:block;}
.empty-block i{font-size:28px;color:var(--weak);margin-bottom:12px;display:block;}
.empty-block p{color:var(--muted);font-size:14.5px;}

/* ============ Related ============ */
.related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.related-card{
  display:flex;flex-direction:column;
  background:rgba(11,26,43,.8);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(53,230,196,.4);box-shadow:var(--shadow-soft);}
.related-card .thumb{aspect-ratio:4/3;overflow:hidden;}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;}
.related-card .r-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.related-card h3{font-size:15.5px;line-height:1.5;}
.related-card h3 a{color:var(--text);}
.related-card h3 a:hover{color:var(--primary);}
.related-card .r-meta{font-size:12.5px;color:var(--weak);margin-top:auto;}
.related-card .r-meta span{margin-right:10px;}

/* ============ CTA bar ============ */
.cta-bar{
  display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
  padding:32px 36px;border-radius:var(--radius-xl);
  background:
    radial-gradient(420px 200px at 88% 0%,rgba(53,230,196,.22),transparent 70%),
    linear-gradient(120deg,rgba(16,37,58,.94),rgba(11,26,43,.9));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:clamp(21px,2.4vw,27px);}
.cta-bar p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-primary-lg{
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;border:0;
  background:linear-gradient(120deg,var(--primary),#2BC7E0);
  color:#04121A;font-size:15px;font-weight:700;cursor:pointer;
  box-shadow:0 0 0 1px rgba(53,230,196,.35),0 12px 30px rgba(53,230,196,.26);
  transition:transform var(--ease),box-shadow var(--ease);
}
.btn-primary-lg:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,230,196,.55),0 18px 40px rgba(53,230,196,.34);}
.btn-outline-lg{
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);color:var(--text);font-size:15px;
  background:rgba(11,26,43,.6);cursor:pointer;
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.btn-outline-lg:hover{border-color:rgba(53,230,196,.6);color:var(--text);transform:translateY(-2px);background:rgba(16,37,58,.9);}

/* ============ Footer ============ */
.site-footer{
  margin-top:20px;position:relative;z-index:1;
  background:rgba(5,11,20,.92);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(126,200,255,.1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--weak);
}
.back-top{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;}
.back-top:hover{color:var(--primary);}

/* ============ Toast ============ */
.toast-note{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);
  background:rgba(8,20,34,.96);border:1px solid rgba(53,230,196,.5);
  color:var(--text);font-size:14px;padding:12px 22px;border-radius:999px;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;z-index:1200;
  transition:opacity var(--ease),transform var(--ease);
}
.toast-note.show{opacity:1;transform:translate(-50%,0);}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .nav-channels{gap:16px;}
  .nav-search input{width:150px;}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .nav-channels,.header-actions .nav-search,.header-actions .login-link,.header-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;gap:12px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-glass{left:auto;right:14px;bottom:-14px;}
  .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{grid-template-columns:1fr;padding:28px 24px;}
  .section{padding:56px 0;}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px;}
  .hero-title{font-size:clamp(28px,7vw,36px);}
  .hero-sub{font-size:15px;}
  .matrix-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .section{padding:46px 0;}
  .filter-panel{padding:14px;gap:10px;margin-top:30px;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  body{background-attachment:scroll;}
}
@media (max-width:519.98px){
  .brand-name{font-size:17px;}
  .header-actions .btn-glow{height:38px;padding:0 14px;font-size:13px;}
  .stat-pill{padding:10px 14px;}
  .cta-actions .btn-primary-lg,.cta-actions .btn-outline-lg{width:100%;justify-content:center;}
  .hero-glass{position:static;width:100%;margin-top:14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.34);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-soft:0 10px 28px rgba(0,0,0,.28);
  --ease:180ms cubic-bezier(.4,.2,.2,1);
  --font-cn:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--bg-deep);
  color:var(--text);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(53,230,196,.10), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(124,140,255,.12), transparent 60%),
    linear-gradient(rgba(7,19,33,.96), rgba(5,11,20,1));
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:0;margin:0;line-height:1.25;}
p{margin:0 0 1em;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid rgba(53,230,196,.6);outline-offset:3px;border-radius:6px;}

.container{max-width:1320px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,14,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-icon{
  width:26px;height:26px;display:grid;grid-template-columns:1fr 1fr;gap:4px;
  transform:rotate(45deg);
  transition:transform var(--ease);
}
.brand-icon i{display:block;background:var(--primary);border-radius:2px;opacity:.9;}
.brand-icon i:nth-child(2){opacity:.7;background:var(--secondary);}
.brand-icon i:nth-child(3){opacity:.7;background:var(--secondary);}
.brand-icon i:nth-child(4){opacity:.95;}
.brand:hover .brand-icon{transform:rotate(135deg);}
.brand-name{font-size:20px;font-weight:800;color:var(--text);white-space:nowrap;}
.brand-name::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-left:6px;vertical-align:middle;}
.nav-channels{display:flex;align-items:center;gap:22px;margin:0 auto;flex-wrap:nowrap;}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);font-weight:500;padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
  box-shadow:0 0 12px rgba(53,230,196,.55);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search i{font-size:13px;color:var(--weak);}
.nav-search input{
  background:transparent;border:0;outline:none;color:var(--text);
  font-size:13.5px;width:132px;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search:focus-within{
  border-color:rgba(53,230,196,.55);
  background:rgba(53,230,196,.07);
  box-shadow:0 0 0 3px rgba(53,230,196,.14);
}
.nav-login{font-size:14.5px;color:var(--muted);padding:6px 2px;}
.nav-login:hover{color:var(--primary);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);color:var(--text);font-size:14px;font-weight:500;
  transition:all var(--ease);
}
.btn-ghost:hover{border-color:rgba(53,230,196,.6);background:rgba(53,230,196,.08);color:var(--primary);}
.btn-glow{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 18px;border-radius:999px;
  background:linear-gradient(120deg,var(--primary),#3fd0ff);
  color:#04211C;font-size:14px;font-weight:700;border:0;
  box-shadow:0 8px 22px rgba(53,230,196,.30);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-glow:hover{transform:translateY(-1px);color:#04211C;filter:brightness(1.06);box-shadow:0 12px 28px rgba(53,230,196,.42);}
.btn-glow:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  align-items:center;justify-content:center;
}
.mobile-drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:1029;
  background:rgba(6,16,28,.97);
  backdrop-filter:blur(18px);
  padding:22px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;
  border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);margin-bottom:22px;
}
.drawer-search input{background:transparent;border:0;outline:none;color:var(--text);width:100%;font-size:15px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-links a{
  padding:13px 14px;border-radius:var(--radius-sm);font-size:16px;color:var(--muted);
  border:1px solid transparent;
}
.drawer-links a.active,.drawer-links a:hover{
  color:var(--text);background:rgba(53,230,196,.09);border-color:rgba(53,230,196,.22);
}
.drawer-actions{display:flex;gap:12px;flex-wrap:wrap;}
.drawer-actions .btn-ghost,.drawer-actions .btn-glow{height:46px;padding:0 22px;flex:1 1 auto;justify-content:center;}

/* ============ 通用块 ============ */
main{padding-bottom:0;}
.section{padding:76px 0;}
.section-sm{padding:52px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:0;color:var(--primary);
  padding:5px 12px;border-radius:999px;
  background:rgba(53,230,196,.10);border:1px solid rgba(53,230,196,.24);
  margin-bottom:14px;font-weight:600;
}
.section-title{font-size:clamp(24px,2.6vw,34px);color:var(--text);}
.section-desc{color:var(--muted);font-size:15px;margin:10px 0 0;max-width:660px;}
.breadcrumb-bar{padding:18px 0 0;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--weak);flex-wrap:wrap;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span{color:var(--primary);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.22);
  padding:4px 11px;border-radius:999px;
}
.tag.accent{color:#FFD7CC;background:rgba(255,122,89,.16);border-color:rgba(255,122,89,.32);}
.tag.purple{color:#D6DBFF;background:rgba(124,140,255,.16);border-color:rgba(124,140,255,.30);}
.meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--weak);flex-wrap:wrap;}

/* ============ hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(6,18,32,.96) 42%, rgba(8,24,41,.72) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--shadow);
  margin-top:20px;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(126,200,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(126,200,255,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(560px 300px at 78% 30%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(560px 300px at 78% 30%, #000 20%, transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);
  gap:44px;align-items:center;
  padding:52px 48px;
}
.hero-title{font-size:clamp(32px,4.2vw,54px);line-height:1.12;font-weight:800;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-lead{margin-top:18px;color:var(--muted);font-size:17px;max-width:620px;line-height:1.8;}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}
.btn-primary-lg{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 28px;border-radius:999px;
  background:linear-gradient(120deg,var(--primary),#48d9ff);color:#04211C;font-weight:700;font-size:16px;
  box-shadow:0 14px 34px rgba(53,230,196,.32);transition:all var(--ease);
}
.btn-primary-lg:hover{transform:translateY(-2px);color:#04211C;box-shadow:0 18px 42px rgba(53,230,196,.44);}
.btn-outline-lg{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 26px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);color:var(--text);font-weight:600;font-size:15.5px;background:rgba(255,255,255,.03);
  transition:all var(--ease);
}
.btn-outline-lg:hover{border-color:rgba(53,230,196,.6);background:rgba(53,230,196,.09);color:var(--primary);transform:translateY(-2px);}
.hero-panel{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:20px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:18px;box-shadow:var(--shadow-soft);
}
.hero-panel-cover{border-radius:14px;overflow:hidden;aspect-ratio:16/9;position:relative;}
.hero-panel-cover img{width:100%;height:100%;object-fit:cover;}
.hero-panel-cover span{
  position:absolute;left:12px;top:12px;
  font-size:12px;font-weight:700;color:#04211C;background:var(--primary);
  padding:3px 10px;border-radius:999px;
}
.hero-panel-body{padding:16px 4px 4px;}
.hero-panel-body h3{font-size:17px;margin-bottom:8px;}
.hero-panel-body p{font-size:13.5px;color:var(--muted);margin:0 0 14px;}
.panel-stats{display:flex;gap:18px;border-top:1px solid var(--line);padding-top:14px;}
.panel-stats div{font-size:12.5px;color:var(--weak);}
.panel-stats strong{display:block;font-size:19px;color:var(--primary);font-weight:800;line-height:1.3;}

/* ============ 精选条目 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.entry-card{
  background:linear-gradient(180deg,rgba(16,37,58,.92),rgba(11,26,43,.92));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-soft);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.35);box-shadow:0 26px 54px rgba(0,0,0,.44);}
.entry-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.entry-card:hover .entry-cover img{transform:scale(1.04);}
.entry-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,0) 40%,rgba(5,11,20,.78) 100%);
}
.entry-cover .tag{position:absolute;left:14px;bottom:14px;z-index:2;}
.entry-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:19px;line-height:1.45;}
.entry-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.7;}
.entry-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--weak);gap:10px;
}
.entry-foot .go{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.entry-card:hover .entry-foot .go{color:#7bf5de;}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
}
.faq-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center; justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);
  font-size:16.5px;font-weight:600;text-align:left;
  padding:20px 0;cursor:pointer;transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-plus{
  position:relative;width:18px;height:18px;flex:0 0 18px;border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-plus::before{width:9px;height:1.6px;}
.faq-plus::after{width:1.6px;height:9px;}
.faq-q[aria-expanded="true"] .faq-plus{transform:rotate(45deg);background:rgba(53,230,196,.14);border-color:rgba(53,230,196,.5);}
.faq-a{padding:0 0 20px;font-size:14.8px;line-height:1.85;color:var(--muted);max-width:96%;}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.rec-card{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(16,37,58,.66);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(53,230,196,.35);background:rgba(20,45,69,.8);}
.rec-thumb{width:74px;height:60px;flex:0 0 74px;border-radius:10px;overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body h4{font-size:15px;line-height:1.5;margin-bottom:6px;}
.rec-body span{font-size:12.5px;color:var(--weak);}

/* ============ 工具条 ============ */
.toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:24px 28px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
}
.toolbar-text h3{font-size:19px;margin-bottom:6px;}
.toolbar-text p{margin:0;font-size:14px;color:var(--muted);}
.toolbar-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-fav{
  display:inline-flex;align-items:center;gap:9px;height:46px;padding:0 24px;border-radius:999px;
  background:rgba(53,230,196,.12);border:1px solid rgba(53,230,196,.38);color:var(--primary);
  font-weight:700;font-size:15px;cursor:pointer;transition:all var(--ease);
}
.btn-fav:hover{background:rgba(53,230,196,.2);box-shadow:0 0 0 3px rgba(53,230,196,.12);}
.btn-fav.on{background:linear-gradient(120deg,var(--primary),#48d9ff);color:#04211C;border-color:transparent;box-shadow:0 0 22px rgba(53,230,196,.4);}
.btn-share{
  display:inline-flex;align-items:center;gap:9px;height:46px;padding:0 22px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);color:var(--text);
  font-weight:600;font-size:15px;cursor:pointer;transition:all var(--ease);
}
.btn-share:hover{border-color:rgba(53,230,196,.55);color:var(--primary);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(110deg,rgba(9,26,44,.96),rgba(12,35,58,.9)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--muted);margin:0;font-size:15px;max-width:600px;}

/* ============ toast ============ */
.toast-note{
  position:fixed;left:50%;bottom:38px;transform:translate(-50%,20px);
  background:rgba(8,22,38,.96);border:1px solid rgba(53,230,196,.4);color:var(--text);
  padding:12px 22px;border-radius:999px;font-size:14px;z-index:2000;
  opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);
  box-shadow:0 18px 40px rgba(0,0,0,.5);
}
.toast-note.show{opacity:1;transform:translate(-50%,0);}

/* ============ footer ============ */
.site-footer{
  margin-top:80px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,19,33,.6),rgba(5,11,20,1));
  padding:60px 0 28px;
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14.5px;line-height:1.8;max-width:340px;}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:11px;font-size:14px;color:var(--muted);}
.footer-col ul li a{color:var(--muted);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--weak);
}
.back-top{display:inline-flex;align-items:center;gap:7px;color:var(--muted);}
.back-top:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-search input{width:104px;}
  .nav-channels{gap:16px;}
  .nav-link{font-size:14.5px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .nav-channels,.nav-search,.nav-login,.btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:40px 30px;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-cols{grid-template-columns:1fr;gap:0;}
  .faq-wrap{padding:26px 22px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
  .cta-band{padding:34px 28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:18px;padding-right:18px;}
  .hero-grid{padding:32px 22px;gap:26px;}
  .hero-lead{font-size:15.5px;}
  .entry-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .cat-hero{border-radius:18px;}
  .faq-q{font-size:15.5px;padding:17px 0;}
  .toolbar{padding:20px;flex-direction:column;align-items:flex-start;}
  .toolbar-actions{width:100%;}
  .toolbar-actions .btn-fav,.toolbar-actions .btn-share{flex:1 1 auto;justify-content:center;}
  .cta-band{padding:28px 22px;}
  .site-footer{padding:44px 0 22px;margin-top:56px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .section{padding:46px 0;}
  .section-sm{padding:36px 0;}
  .btn-primary-lg,.btn-outline-lg{height:46px;padding:0 22px;font-size:15px;}
  body{background-image:
    radial-gradient(620px 380px at 20% 0%, rgba(53,230,196,.10), transparent 65%),
    linear-gradient(rgba(7,19,33,.98), rgba(5,11,20,1));}
}
@media (max-width:400px){
  .brand-name{font-size:18px;}
  .hero-title{font-size:30px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category5 */
:root{
  --bg-deep:#050B14;
  --bg:#071321;
  --surface:#0B1A2B;
  --surface-2:#10253A;
  --glass:rgba(14,34,55,.62);
  --line:rgba(126,200,255,.16);
  --line-strong:rgba(126,200,255,.3);
  --primary:#35E6C4;
  --secondary:#7C8CFF;
  --accent:#FF7A59;
  --text:#EAF4FF;
  --muted:#A9BED3;
  --weak:#6F8AA3;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 22px 50px rgba(0,0,0,.38);
  --shadow-hover:0 26px 60px rgba(0,0,0,.5);
  --maxw:1320px;
  --header-h:72px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--text);
  background-color:var(--bg-deep);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(1000px 600px at 82% -12%, rgba(124,140,255,.2), transparent 62%),
    radial-gradient(820px 520px at 4% 2%, rgba(53,230,196,.13), transparent 66%),
    linear-gradient(180deg,#050B14 0%,#071321 48%,#050B14 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.55;
  background-image:
    linear-gradient(rgba(126,200,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,255,.055) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
}
h1,h2,h3,h4,h5{letter-spacing:0;line-height:1.25;margin:0;font-weight:800;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,opacity .18s ease;}
img{display:block;max-width:100%;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
input,button,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid rgba(53,230,196,.62);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px;--bs-gutter-x:24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(5,14,28,.84);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:26px;
  height:26px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  transform:rotate(45deg);
}
.brand-icon i{
  display:block;
  border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  transition:opacity .2s ease;
}
.brand-icon i:nth-child(2),
.brand-icon i:nth-child(3){opacity:.5;}
.brand:hover .brand-icon i{opacity:1;}
.brand-name{
  font-size:19px;
  font-weight:800;
  color:var(--text);
  letter-spacing:0;
}
.nav-channels{
  display:flex;
  align-items:center;
  gap:22px;
  margin-inline:auto;
}
.nav-link{
  position:relative;
  padding:6px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after,
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--weak);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{font-size:13px;}
.search-box input{
  width:146px;
  background:none;
  border:0;
  outline:none;
  color:var(--text);
  font-size:14px;
}
.search-box input::placeholder{color:var(--weak);}
.search-box:focus-within{
  border-color:rgba(53,230,196,.6);
  box-shadow:0 0 0 3px rgba(53,230,196,.14);
}
.link-login{font-size:14px;color:var(--muted);}
.link-login:hover{color:var(--primary);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text);
  font-size:14px;
  font-weight:600;
  transition:transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-ghost:hover{
  border-color:rgba(53,230,196,.45);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-glow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border:0;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),#2ACBB0);
  color:#04120F;
  font-size:14px;
  font-weight:800;
  box-shadow:0 10px 26px rgba(53,230,196,.28);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-glow:hover,
.btn-glow:focus-visible{
  color:#04120F;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(53,230,196,.42);
}
.btn-glow:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-size:16px;
}
.mobile-drawer{
  display:none;
  position:fixed;
  top:var(--header-h);
  left:0;
  right:0;
  bottom:0;
  z-index:110;
  padding:22px 24px 40px;
  background:rgba(5,14,28,.97);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block;}
.mobile-drawer .search-box{width:100%;margin-bottom:18px;}
.mobile-drawer .search-box input{width:100%;}
.drawer-nav{display:grid;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  padding:12px 4px;
  font-size:16px;
  color:var(--muted);
  border-bottom:1px solid rgba(126,200,255,.1);
}
.drawer-nav a.active{color:var(--primary);font-weight:700;}
.drawer-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 面包屑 / 徽章 / 按钮 ============ */
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:22px;
}
.breadcrumb-line a{color:var(--weak);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--text);}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  background:rgba(53,230,196,.12);
  border:1px solid rgba(53,230,196,.24);
  color:var(--primary);
  font-size:12.5px;
  font-weight:700;
}
.badge-pill.violet{
  background:rgba(124,140,255,.14);
  border-color:rgba(124,140,255,.3);
  color:#B6C0FF;
}
.tag-mini{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(124,140,255,.12);
  border:1px solid rgba(124,140,255,.24);
  color:#B6C0FF;
  font-size:12px;
  font-weight:600;
  white-space:nowrap;
}
.tag-mini.teal{
  background:rgba(53,230,196,.11);
  border-color:rgba(53,230,196,.24);
  color:var(--primary);
}
.tag-mini.orange{
  background:rgba(255,122,89,.13);
  border-color:rgba(255,122,89,.28);
  color:#FFB49F;
}

/* ============ Hero ============ */
.page-hero{padding:44px 0 30px;}
.hero-title{
  font-size:clamp(32px,4.4vw,54px);
  line-height:1.12;
  font-weight:800;
  margin:16px 0 16px;
}
.hero-title .hl{
  color:var(--primary);
  position:relative;
  white-space:nowrap;
}
.hero-title .hl::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:6px;
  border-radius:4px;
  background:linear-gradient(90deg,rgba(53,230,196,.42),rgba(124,140,255,.18));
  z-index:-1;
}
.hero-lead{
  font-size:17px;
  color:var(--muted);
  max-width:640px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-stats li{display:grid;gap:2px;}
.hero-stats .num{
  font-size:24px;
  font-weight:800;
  color:var(--text);
}
.hero-stats .lb{font-size:13px;color:var(--weak);}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--surface);
}
.hero-visual img{
  width:100%;
  height:360px;
  object-fit:cover;
  opacity:.92;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.1) 0%,rgba(5,11,20,.62) 62%,rgba(5,11,20,.9) 100%);
  pointer-events:none;
}
.glass-card{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  z-index:2;
  padding:16px 18px;
  border-radius:18px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
}
.glass-card .gc-title{
  font-size:15px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text);
}
.glass-card .gc-title i{color:var(--primary);font-size:13px;}
.glass-card .gc-meta{
  margin-top:8px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  font-size:12.5px;
  color:var(--muted);
}
.glass-card .gc-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ============ 板块通用 ============ */
.section{padding:56px 0;}
.section-tight{padding:40px 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
}
.section-head .sub{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  max-width:640px;
}
.section-head .head-link{
  font-size:14px;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.section-head .head-link:hover{color:#5CF2D6;}

/* ============ 筛选 chips ============ */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-size:13.5px;
  font-weight:600;
  transition:transform .16s ease,border-color .16s ease,color .16s ease,background .16s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px);}
.chip.active{
  background:rgba(53,230,196,.13);
  border-color:rgba(53,230,196,.42);
  color:var(--primary);
}

/* ============ 时间线 ============ */
.timeline{position:relative;padding:6px 0 0;}
.timeline::before{
  content:"";
  position:absolute;
  top:10px;
  bottom:26px;
  left:110px;
  width:1px;
  background:linear-gradient(180deg,rgba(53,230,196,.55),rgba(124,140,255,.3) 55%,rgba(126,200,255,.06));
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:110px 1fr;
  gap:28px;
  padding-bottom:22px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:105px;
  top:22px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(53,230,196,.14);
}
.tl-item.is-muted::before{
  background:var(--secondary);
  box-shadow:0 0 0 4px rgba(124,140,255,.14);
}
.tl-mark{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:4px;
  padding-right:0;
  padding-top:12px;
}
.tl-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:38px;
  height:26px;
  padding:0 8px;
  border-radius:8px;
  background:rgba(53,230,196,.12);
  border:1px solid rgba(53,230,196,.26);
  color:var(--primary);
  font-size:12.5px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.tl-item.is-muted .tl-num{
  background:rgba(124,140,255,.13);
  border-color:rgba(124,140,255,.28);
  color:#B6C0FF;
}
.tl-stage{
  font-size:12.5px;
  color:var(--weak);
  text-align:right;
}
.tl-card{
  display:grid;
  grid-template-columns:1fr 128px;
  gap:18px;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.26);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.tl-card:hover{
  transform:translateY(-2px);
  border-color:rgba(53,230,196,.35);
  box-shadow:var(--shadow-hover);
}
.tl-card h3{font-size:19px;font-weight:700;}
.tl-card h3 a:hover{color:var(--primary);}
.tl-card .desc{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:14px;
  font-size:12.5px;
  color:var(--weak);
}
.tl-meta .dot{opacity:.4;}
.tl-thumb{
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
  align-self:start;
}
.tl-thumb img{
  width:100%;
  height:86px;
  object-fit:cover;
  transition:transform .3s ease;
}
.tl-card:hover .tl-thumb img{transform:scale(1.05);}

/* ============ 合集入口 ============ */
.entry-card{
  display:flex;
  gap:16px;
  height:100%;
  padding:16px;
  border-radius:18px;
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.24);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.entry-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,230,196,.35);
  box-shadow:var(--shadow-hover);
}
.entry-card .thumb{
  flex:0 0 118px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
}
.entry-card .thumb img{
  width:100%;
  height:100%;
  min-height:96px;
  object-fit:cover;
}
.entry-card h3{font-size:17px;font-weight:700;line-height:1.45;}
.entry-card p{
  margin-top:6px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
.entry-card .meta{
  margin-top:10px;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  color:var(--weak);
}
.entry-card .go{
  margin-left:auto;
  color:var(--primary);
  font-weight:700;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:5px;
}

/* ============ 相关推荐小卡 ============ */
.mini-card{
  height:100%;
  display:flex;
  flex-direction:column;
  border-radius:var(--r-md);
  overflow:hidden;
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.mini-card:hover{
  transform:translateY(-2px);
  border-color:rgba(124,140,255,.4);
  box-shadow:var(--shadow-hover);
}
.mini-card .cover{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.mini-card .cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .32s ease;
}
.mini-card:hover .cover img{transform:scale(1.06);}
.mini-card .cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,11,20,.78) 100%);
}
.mini-card .body{
  padding:14px 16px 16px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}
.mini-card h3{font-size:16px;font-weight:700;line-height:1.5;}
.mini-card h3 a:hover{color:var(--primary);}
.mini-card .meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--weak);
}

/* ============ FAQ ============ */
.faq-panel{
  padding:8px 26px;
  border-radius:var(--r-lg);
  background:rgba(14,34,55,.5);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  border:0;
  background:none;
  color:var(--text);
  font-size:17px;
  font-weight:700;
  text-align:left;
  line-height:1.6;
}
.faq-icon{
  flex:0 0 26px;
  width:26px;
  height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:12px;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-q:hover .faq-icon{background:rgba(53,230,196,.12);}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:rgba(53,230,196,.16);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .26s ease;
}
.faq-a p{
  padding:0 40px 20px 0;
  font-size:14.8px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ CTA 工具条 ============ */
.cta-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  padding:26px 28px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(14,34,55,.86),rgba(16,37,58,.72));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cta-strip .cta-copy{flex:1 1 320px;min-width:260px;}
.cta-strip h2{font-size:22px;font-weight:800;}
.cta-strip p{margin-top:8px;font-size:14.5px;color:var(--muted);}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.btn-bookmark{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),#2ACBB0);
  color:#04120F;
  font-weight:800;
  font-size:14.5px;
  box-shadow:0 12px 30px rgba(53,230,196,.28);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-bookmark:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(53,230,196,.42);}
.btn-bookmark.is-on{background:linear-gradient(135deg,#2ACBB0,#35E6C4);}
.btn-share{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 20px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-weight:600;
  font-size:14.5px;
  transition:transform .18s ease,border-color .18s ease,color .18s ease;
}
.btn-share:hover{
  transform:translateY(-2px);
  border-color:rgba(53,230,196,.5);
  color:var(--primary);
}

/* ============ toast ============ */
.toast-note{
  position:fixed;
  left:50%;
  bottom:32px;
  transform:translate(-50%,20px);
  z-index:200;
  padding:12px 22px;
  border-radius:999px;
  background:rgba(8,20,34,.96);
  border:1px solid rgba(53,230,196,.4);
  color:var(--text);
  font-size:14px;
  box-shadow:0 18px 40px rgba(0,0,0,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.toast-note.show{opacity:1;transform:translate(-50%,0);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:80px;
  padding:56px 0 24px;
  background:rgba(7,19,33,.92);
  border-top:1px solid var(--line);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:32px;
}
.footer-brand p{
  margin-top:14px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  max-width:330px;
}
.footer-col h5{
  font-size:14.5px;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
}
.footer-col ul{display:grid;gap:9px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:38px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--weak);
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--muted);
}
.back-top:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .search-box input{width:118px;}
  .nav-channels{gap:16px;}
}
@media (max-width:991.98px){
  .nav-channels,
  .header-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .hero-visual{margin-top:8px;}
  .hero-visual img{height:300px;}
  .timeline::before{left:92px;}
  .tl-item{grid-template-columns:92px 1fr;gap:22px;}
  .tl-item::before{left:87px;}
  .tl-card{grid-template-columns:1fr;}
  .tl-thumb{order:-1;}
  .tl-thumb img{height:150px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:46px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-inline:18px;}
  .page-hero{padding:32px 0 18px;}
  .hero-title{font-size:clamp(30px,7vw,38px);}
  .hero-lead{font-size:15.5px;}
  .hero-stats{gap:20px;margin-top:24px;}
  .hero-stats .num{font-size:20px;}
  .hero-visual img{height:236px;}
  .glass-card{left:12px;right:12px;bottom:12px;padding:13px 14px;}
  .timeline::before{left:6px;}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-left:26px;padding-bottom:18px;}
  .tl-item::before{left:1px;top:18px;}
  .tl-mark{
    flex-direction:row;
    align-items:center;
    gap:10px;
    padding-top:0;
    justify-content:flex-start;
  }
  .tl-stage{text-align:left;}
  .tl-card{padding:16px;}
  .faq-panel{padding:4px 18px;}
  .faq-q{font-size:16px;padding:17px 0;}
  .faq-a p{padding-right:8px;}
  .cta-strip{padding:22px 20px;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .footer-brand p{max-width:none;}
  .site-footer{margin-top:56px;padding-top:40px;}
  .section{padding:38px 0;}
  .entry-card{flex-direction:column;}
  .entry-card .thumb{flex:none;}
  .entry-card .thumb img{height:150px;min-height:0;}
}
@media (max-width:520px){
  .hero-actions .btn-glow,
  .hero-actions .btn-ghost{width:100%;justify-content:center;}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .cta-actions{width:100%;}
  .btn-bookmark,
  .btn-share{flex:1 1 100%;justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}