/* roulang page: index */
:root{
    --brand:#6D3BFF;
    --brand-soft:rgba(109,59,255,.12);
    --brand-line:rgba(109,59,255,.32);
    --lime:#C8FF3D;
    --coral:#FF6A3D;
    --ink:#0C0B12;
    --ink-card:#16151F;
    --ink-line:#262538;
    --light-bg:#F6F6FB;
    --light-card:#FFFFFF;
    --light-line:#E8E8F2;
    --text:#1A1A24;
    --text-muted:#5C5C70;
    --text-inv:#F2F0FF;
    --text-inv-muted:#A9A6C4;
    --radius-card:16px;
    --radius-btn:11px;
    --shadow-brand:0 12px 32px rgba(109,59,255,.18);
    --shadow-soft:0 6px 20px rgba(26,26,36,.06);
    --container:1200px;
    --font:-apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--light-bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
  p{margin:0;}
  a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease;}
  img{display:block;max-width:100%;height:auto;}
  button,input{font:inherit;color:inherit;}
  button{cursor:pointer;border:none;background:none;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
  .num{font-variant-numeric:tabular-nums;}

  /* ============ header ============ */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(12,11,18,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--ink-line);
    transition:box-shadow .2s ease,background .2s ease;
  }
  .site-header.is-stuck{box-shadow:0 8px 28px rgba(0,0,0,.35);}
  .topbar-inner{
    display:flex;align-items:center;gap:22px;
    height:74px;
    transition:height .2s ease;
  }
  .site-header.is-stuck .topbar-inner{height:56px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand),#9A6BFF);
    box-shadow:0 6px 18px rgba(109,59,255,.45);
  }
  .brand-mark svg{width:19px;height:19px;}
  .brand-text{
    color:#fff;font-weight:800;font-size:16px;letter-spacing:-.01em;
    white-space:nowrap;
  }
  .main-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
  .nav-link{
    position:relative;padding:8px 12px;border-radius:9px;
    color:var(--text-inv-muted);font-size:15px;font-weight:600;white-space:nowrap;
    transition:color .18s ease,background .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--lime);transform:scaleX(0);transform-origin:left;
    transition:transform .18s ease;border-radius:2px;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
  .nav-link.is-active{color:#fff;}
  .topbar-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
  .search-box{
    display:flex;align-items:center;gap:6px;
    background:rgba(255,255,255,.06);
    border:1px solid var(--ink-line);
    border-radius:999px;padding:5px 6px 5px 14px;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,59,255,.22);}
  .search-box input{
    width:150px;background:transparent;border:none;outline:none;
    color:#fff;font-size:14px;
  }
  .search-box input::placeholder{color:var(--text-inv-muted);}
  .search-box button{
    width:30px;height:30px;border-radius:999px;display:grid;place-items:center;
    background:var(--brand);color:#fff;transition:filter .18s ease,transform .18s ease;
  }
  .search-box button:hover{filter:brightness(1.1);transform:translateY(-1px);}
  .search-box svg{width:15px;height:15px;}
  .nav-toggle{
    display:none;width:40px;height:40px;border-radius:10px;
    align-items:center;justify-content:center;
    border:1px solid var(--ink-line);color:#fff;background:rgba(255,255,255,.05);
  }
  .nav-toggle svg{width:20px;height:20px;}

  .hotbar{border-top:1px solid rgba(38,37,56,.7);}
  .hotbar-inner{display:flex;align-items:center;gap:14px;height:44px;}
  .site-header.is-stuck .hotbar{display:none;}
  .hotbar-label{
    flex-shrink:0;font-size:12px;font-weight:700;color:var(--ink);
    background:var(--lime);border-radius:999px;padding:2px 10px;
  }
  .hot-scroll{
    display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .hot-scroll::-webkit-scrollbar{display:none;}
  .hot-chip{
    flex-shrink:0;font-size:13px;color:var(--text-inv-muted);
    padding:3px 12px;border-radius:999px;border:1px solid var(--ink-line);
    transition:color .18s ease,border-color .18s ease,background .18s ease;
  }
  .hot-chip:hover{color:var(--lime);border-color:var(--brand-line);background:rgba(109,59,255,.14);}

  /* drawer */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(6,5,10,.6);z-index:60;
    opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:80%;max-width:340px;z-index:61;
    background:var(--ink-card);border-left:1px solid var(--ink-line);
    padding:24px 20px;overflow-y:auto;
    transform:translateX(105%);transition:transform .26s ease;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-title{color:var(--text-inv-muted);font-size:12px;font-weight:700;letter-spacing:.08em;margin:22px 0 10px;}
  .drawer-title:first-child{margin-top:0;}
  .drawer a{display:block;color:var(--text-inv);font-size:15px;font-weight:600;padding:11px 0;border-bottom:1px solid rgba(38,37,56,.8);}
  .drawer a:hover{color:var(--lime);}
  .drawer .search-box{margin-top:14px;width:100%;}
  .drawer .search-box input{width:100%;}
  .drawer-close{
    position:absolute;top:18px;right:18px;width:36px;height:36px;border-radius:10px;
    display:grid;place-items:center;color:#fff;border:1px solid var(--ink-line);
  }

  /* ============ buttons & badges ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);font-weight:700;font-size:15px;
    padding:12px 22px;line-height:1;white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,filter .18s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{background:var(--lime);color:#12110A;}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 26px rgba(200,255,61,.28);}
  .btn-ghost{background:transparent;color:#fff;border:1px solid var(--brand-line);}
  .btn-ghost:hover{background:rgba(109,59,255,.16);transform:translateY(-1px);}
  .btn-purple{background:var(--brand);color:#fff;}
  .btn-purple:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:var(--shadow-brand);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-block{width:100%;}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px;
  }
  .link-more svg{width:15px;height:15px;transition:transform .18s ease;}
  .link-more:hover svg{transform:translateX(3px);}
  .badge{
    display:inline-flex;align-items:center;gap:5px;
    font-size:12px;font-weight:700;border-radius:999px;padding:3px 10px;line-height:1.5;
  }
  .badge-cat{background:var(--brand-soft);color:var(--brand);}
  .badge-time{background:rgba(255,106,61,.13);color:var(--coral);}
  .badge-hot{background:var(--lime);color:#12110A;}
  .badge-dark{background:rgba(255,255,255,.08);color:var(--text-inv);}

  /* ============ hero ============ */
  .hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:72px 0 92px;}
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;opacity:.3;
  }
  .hero-glow{
    position:absolute;width:620px;height:620px;right:-160px;top:-200px;border-radius:50%;
    background:radial-gradient(circle,rgba(109,59,255,.55),rgba(109,59,255,0) 68%);
    pointer-events:none;
  }
  .hero-glow-2{
    position:absolute;width:420px;height:420px;left:-140px;bottom:-200px;border-radius:50%;
    background:radial-gradient(circle,rgba(200,255,61,.22),rgba(200,255,61,0) 70%);
    pointer-events:none;
  }
  .hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:rgba(255,255,255,.07);border:1px solid var(--ink-line);
    border-radius:999px;padding:5px 14px;font-size:13px;color:var(--text-inv-muted);margin-bottom:22px;
  }
  .hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px var(--lime);}
  .hero h1{
    font-size:clamp(28px,4.6vw,44px);
    font-weight:900;letter-spacing:-.02em;line-height:1.24;color:#fff;
  }
  .hero h1 .hl{
    color:var(--lime);
    box-shadow:inset 0 -.28em rgba(200,255,61,.16);
    border-radius:4px;
  }
  .hero-sub{margin-top:18px;font-size:17px;color:#CFCBEA;max-width:540px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-stats{
    display:flex;flex-wrap:wrap;gap:34px;margin-top:40px;
    padding-top:26px;border-top:1px solid var(--ink-line);
  }
  .hero-stat strong{
    display:block;font-size:24px;font-weight:900;color:var(--lime);line-height:1.2;
  }
  .hero-stat span{font-size:13px;color:var(--text-inv-muted);}
  .hero-visual{position:relative;display:flex;justify-content:center;}
  .hero-img{
    width:100%;max-width:420px;aspect-ratio:1/1;object-fit:cover;
    border-radius:50%;border:1px solid var(--brand-line);
    box-shadow:0 24px 70px rgba(109,59,255,.45);
  }
  .hero-float{
    position:absolute;left:0;bottom:14px;
    background:rgba(22,21,31,.94);border:1px solid var(--ink-line);border-radius:14px;
    padding:12px 16px;box-shadow:0 16px 40px rgba(0,0,0,.45);backdrop-filter:blur(8px);
  }
  .hero-float b{display:block;font-size:13px;color:#fff;}
  .hero-float span{font-size:12px;color:var(--text-inv-muted);}

  /* ============ section base ============ */
  .section{padding:96px 0;}
  .section-tight{padding:76px 0;}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
    margin-bottom:44px;flex-wrap:wrap;
  }
  .section-head h2{font-size:clamp(24px,3vw,28px);}
  .section-head p{margin-top:10px;color:var(--text-muted);font-size:15px;max-width:620px;}
  .eyebrow-purple{
    display:inline-block;font-size:12px;font-weight:800;letter-spacing:.1em;
    color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 12px;margin-bottom:14px;
  }

  /* ============ value ============ */
  .value-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;}
  .value-item{
    background:var(--light-card);border:1px solid var(--light-line);border-radius:var(--radius-card);
    padding:32px 30px;box-shadow:var(--shadow-soft);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .value-item:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-brand);}
  .value-num{
    font-size:34px;font-weight:900;color:var(--brand-soft);line-height:1;
    -webkit-text-stroke:1px var(--brand);margin-bottom:16px;letter-spacing:-.02em;
  }
  .value-item h3{font-size:19px;margin-bottom:12px;}
  .value-item p{color:var(--text-muted);font-size:15px;}
  .value-item .value-icon{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand);margin-bottom:18px;
  }
  .value-item .value-icon svg{width:22px;height:22px;}
  .value-wide{
    grid-column:1 / -1;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:26px;
    background:linear-gradient(120deg,#FFFFFF 0%,#F3EFFF 100%);
  }
  .value-wide .value-num{margin-bottom:0;}
  .value-wide .wide-text h3{margin-bottom:8px;}

  /* ============ steps ============ */
  .steps-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
  .step-list{position:relative;padding-left:34px;}
  .step-list::before{
    content:"";position:absolute;left:11px;top:12px;bottom:12px;width:2px;
    background:linear-gradient(180deg,var(--brand),rgba(109,59,255,.08));
  }
  .step{padding:18px 0;position:relative;}
  .step::before{
    content:"";position:absolute;left:-34px;top:26px;width:12px;height:12px;border-radius:50%;
    background:var(--light-bg);border:2px solid var(--light-line);
  }
  .step.is-current::before{background:var(--lime);border-color:var(--lime);box-shadow:0 0 0 5px rgba(200,255,61,.22);}
  .step h3{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
  .step h3 em{
    font-style:normal;font-size:12px;font-weight:800;color:var(--text-muted);
    background:var(--light-bg);border:1px solid var(--light-line);border-radius:8px;padding:2px 8px;
  }
  .step.is-current h3 em{color:#12110A;background:var(--lime);border-color:var(--lime);}
  .step p{color:var(--text-muted);font-size:15px;max-width:440px;}
  .device-frame{
    position:relative;border-radius:22px;padding:14px;
    background:linear-gradient(140deg,#1B1A26,#0C0B12);
    border:1px solid var(--ink-line);box-shadow:0 26px 60px rgba(26,26,36,.32);
  }
  .device-frame img{border-radius:14px;width:100%;border:1px solid rgba(255,255,255,.07);}
  .device-tag{
    position:absolute;right:24px;bottom:26px;
    background:rgba(200,255,61,.94);color:#12110A;font-size:12px;font-weight:800;
    border-radius:999px;padding:5px 12px;
  }

  /* ============ posts ============ */
  .posts-section{background:var(--light-bg);}
  .post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .post-card{
    background:var(--light-card);border:1px solid var(--light-line);border-radius:var(--radius-card);
    overflow:hidden;display:flex;flex-direction:column;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .post-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-brand);}
  .post-cover{display:block;overflow:hidden;background:linear-gradient(135deg,#6D3BFF,#2A1B5E);aspect-ratio:16/9;}
  .post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
  .post-card:hover .post-cover img{transform:scale(1.04);}
  .post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .post-card h3{font-size:17px;line-height:1.5;}
  .post-card h3 a{
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card h3 a:hover{color:var(--brand);}
  .post-excerpt{
    color:var(--text-muted);font-size:14px;line-height:1.7;flex:1;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--light-line);}
  .post-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted);}
  .post-date svg{width:14px;height:14px;}
  .empty-state{
    grid-column:1 / -1;background:var(--light-card);border:1px dashed var(--light-line);
    border-radius:var(--radius-card);padding:56px 24px;text-align:center;
  }
  .empty-state .empty-icon{
    width:64px;height:64px;border-radius:20px;margin:0 auto 18px;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand);
  }
  .empty-state .empty-icon svg{width:30px;height:30px;}
  .empty-state p{color:var(--text-muted);margin-bottom:20px;}

  /* ============ voices ============ */
  .voices{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
  .voices::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center;opacity:.14;
  }
  .voices .container{position:relative;}
  .voices .section-head h2{color:#fff;}
  .voices .section-head p{color:var(--text-inv-muted);}
  .voice-scroll{
    display:flex;gap:20px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;
    scrollbar-width:none;
  }
  .voice-scroll::-webkit-scrollbar{display:none;}
  .voice-card{
    flex:0 0 320px;scroll-snap-align:start;
    background:var(--ink-card);border:1px solid var(--ink-line);border-radius:var(--radius-card);
    padding:24px;transition:transform .2s ease,border-color .2s ease;
  }
  .voice-card:hover{transform:translateY(-4px);border-color:var(--brand-line);}
  .voice-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
  .voice-avatar{
    width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
    font-weight:800;font-size:15px;color:#fff;
    background:linear-gradient(135deg,var(--brand),#9A6BFF);
  }
  .voice-head b{font-size:15px;color:#fff;display:block;}
  .voice-head span{font-size:12px;color:var(--text-inv-muted);}
  .voice-card p{color:#CFCBEA;font-size:15px;line-height:1.8;}
  .stat-bar{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px;
    padding-top:34px;border-top:1px solid var(--ink-line);
  }
  .stat-bar div strong{display:block;font-size:26px;font-weight:900;color:var(--lime);}
  .stat-bar div span{font-size:13px;color:var(--text-inv-muted);}

  /* ============ faq ============ */
  .faq-list{max-width:880px;margin:0 auto;border-top:1px solid var(--light-line);}
  .faq-item{border-bottom:1px solid var(--light-line);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 8px;font-weight:700;font-size:17px;min-height:56px;
    transition:background .18s ease,color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:rgba(109,59,255,.05);color:var(--brand);}
  .faq-plus{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
    border:1px solid var(--light-line);color:var(--brand);font-size:16px;font-weight:800;
    transition:transform .2s ease,background .2s ease,border-color .2s ease;
  }
  .faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand);}
  .faq-answer{padding:0 8px 24px;color:var(--text-muted);font-size:15px;line-height:1.8;max-width:760px;}

  /* ============ cta ============ */
  .cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:88px 0;}
  .cta-band::after{
    content:"";position:absolute;width:560px;height:560px;right:-180px;bottom:-260px;border-radius:50%;
    background:radial-gradient(circle,rgba(109,59,255,.5),rgba(109,59,255,0) 70%);
  }
  .cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
  .cta-inner h2{font-size:clamp(24px,3.2vw,32px);max-width:600px;}
  .cta-inner p{color:var(--text-inv-muted);margin-top:14px;max-width:560px;font-size:15px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ============ footer ============ */
  .site-footer{background:#08070D;color:var(--text-inv-muted);padding:72px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
  .footer-brand .brand{margin-bottom:18px;}
  .footer-brand p{font-size:14px;line-height:1.8;max-width:330px;}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
  .footer-col li{margin-bottom:11px;}
  .footer-col a{font-size:14px;}
  .footer-col a:hover{color:var(--lime);}
  .footer-bottom{
    border-top:1px solid var(--ink-line);padding:22px 0 92px;
    font-size:13px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  }

  /* ============ sticky cta ============ */
  .sticky-cta{
    position:fixed;left:50%;bottom:22px;transform:translate(-50%,140%);
    z-index:45;display:flex;align-items:center;gap:18px;
    background:rgba(16,15,24,.96);border:1px solid var(--ink-line);
    border-radius:999px;padding:10px 12px 10px 24px;box-shadow:0 18px 44px rgba(0,0,0,.45);
    backdrop-filter:blur(10px);transition:transform .3s ease,opacity .3s ease;opacity:0;
  }
  .sticky-cta.is-visible{transform:translate(-50%,0);opacity:1;}
  .sticky-cta span{color:#fff;font-size:14px;font-weight:600;white-space:nowrap;}
  .sticky-close{
    width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
    color:var(--text-inv-muted);border:1px solid var(--ink-line);
  }
  .sticky-close:hover{color:#fff;border-color:var(--brand-line);}

  /* ============ responsive ============ */
  @media (max-width:1024px){
    .main-nav{display:none;}
    .nav-toggle{display:flex;}
    .hero-inner{grid-template-columns:1fr;gap:44px;}
    .hero-visual{order:-1;}
    .hero-img{max-width:320px;}
    .value-grid{grid-template-columns:1fr;}
    .value-wide{grid-template-columns:auto 1fr;row-gap:12px;}
    .value-wide .link-more{grid-column:2;}
    .steps-wrap{grid-template-columns:1fr;gap:40px;}
    .post-grid{grid-template-columns:repeat(2,1fr);}
    .stat-bar{grid-template-columns:repeat(2,1fr);gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:768px){
    .topbar-actions .search-box{display:none;}
    .section{padding:64px 0;}
    .section-tight{padding:56px 0;}
    .hero{padding:52px 0 68px;}
    .hero-stats{gap:24px;}
    .post-grid{grid-template-columns:1fr;}
    .voice-card{flex:0 0 84%;}
    .cta-band{padding:64px 0;}
    .footer-bottom{padding-bottom:104px;}
    .sticky-cta{left:0;right:0;bottom:0;transform:translateY(140%);border-radius:0;justify-content:space-between;padding:12px 16px;}
    .sticky-cta.is-visible{transform:translateY(0);}
    .sticky-cta .btn{flex:1;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .brand-text{font-size:15px;}
    .topbar-inner{height:64px;}
    .hero-img{max-width:260px;}
    .value-item{padding:26px 22px;}
    .stat-bar{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
  }

/* roulang page: category1 */
:root{
  --brand:#6D3BFF;
  --brand-soft:rgba(109,59,255,.12);
  --lime:#C8FF3D;
  --coral:#FF6A3D;
  --ink:#0C0B12;
  --ink-card:#16151F;
  --ink-line:#262538;
  --bg-light:#F6F6FB;
  --card-light:#FFFFFF;
  --line-light:#E8E8F2;
  --text:#1A1A24;
  --muted:#5C5C70;
  --muted-dark:#A9A8BC;
  --radius-card:16px;
  --radius-btn:11px;
  --shadow-brand:0 12px 32px rgba(109,59,255,.18);
  --shadow-soft:0 8px 24px rgba(26,26,36,.07);
  --container:1200px;
  --nav-h:68px;
  --nav-h-stuck:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(12,11,18,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--ink-line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(12,11,18,.45);}
.header-top{
  display:flex;align-items:center;gap:18px;
  height:var(--nav-h);
  transition:height .22s ease;
}
.site-header.is-stuck .header-top{height:var(--nav-h-stuck);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#9A6BFF);
  box-shadow:0 6px 18px rgba(109,59,255,.4);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{color:#fff;font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap;}
.nav-search{
  display:flex;align-items:center;flex:1 1 auto;max-width:420px;
  background:#1B1A26;border:1px solid var(--ink-line);border-radius:999px;
  padding:4px 4px 4px 16px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,59,255,.25);}
.nav-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  color:#EDEDF5;font-size:14px;
}
.nav-search input::placeholder{color:#7C7B90;}
.nav-search button{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;
  background:var(--lime);color:#12110F;font-size:13px;font-weight:700;
  transition:filter .18s ease,transform .18s ease;
}
.nav-search button:hover{filter:brightness(1.06);transform:translateY(-1px);}
.nav-cta{
  flex:0 0 auto;padding:10px 20px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 8px 20px rgba(109,59,255,.35);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:#7C4DFF;transform:translateY(-1px);box-shadow:0 12px 26px rgba(109,59,255,.45);}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--ink-line);background:#1B1A26;color:#fff;
  align-items:center;justify-content:center;
}
.header-channels{border-top:1px solid var(--ink-line);}
.channels-inner{
  display:flex;align-items:center;gap:20px;height:48px;
  overflow:hidden;
}
.main-nav{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.nav-link{
  position:relative;padding:6px 10px;border-radius:8px;
  color:#C6C5D6;font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;border-radius:2px;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:scaleX(1);}
.hot-words{
  display:flex;align-items:center;gap:10px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,#000 82%,transparent);
  mask-image:linear-gradient(90deg,#000 82%,transparent);
}
.hot-words::-webkit-scrollbar{display:none;}
.hot-label{color:#7C7B90;font-size:12.5px;white-space:nowrap;}
.hot-item{
  flex:0 0 auto;font-size:12.5px;padding:3px 10px;border-radius:999px;
  background:rgba(200,255,61,.14);color:var(--lime);white-space:nowrap;
  transition:background .18s ease;
}
.hot-item:hover{background:rgba(200,255,61,.26);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,7,14,.6);z-index:60;
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:80%;max-width:360px;
  background:#12111B;border-left:1px solid var(--ink-line);z-index:61;
  padding:22px 20px;transform:translateX(100%);
  transition:transform .26s ease;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{color:#fff;font-weight:800;font-size:15px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--ink-line);color:#fff;}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-link{
  padding:12px 14px;border-radius:12px;color:#C6C5D6;font-size:15px;font-weight:600;
  background:#171622;border:1px solid transparent;
}
.drawer-link:hover,.drawer-link.is-active{color:#fff;border-color:var(--brand);background:rgba(109,59,255,.16);}
.drawer-sub{color:#7C7B90;font-size:12.5px;margin:0 0 10px;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
.drawer-search{display:flex;gap:8px;}
.drawer-search input{
  flex:1;min-width:0;background:#1B1A26;border:1px solid var(--ink-line);
  border-radius:11px;padding:11px 14px;color:#EDEDF5;font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,59,255,.25);}
.drawer-search button{
  padding:11px 16px;border-radius:11px;background:var(--lime);color:#12110F;font-weight:700;font-size:13.5px;
}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#B9B8C8;}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--text);font-weight:600;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--lime);color:#12110F;box-shadow:0 10px 26px rgba(200,255,61,.22);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 30px rgba(200,255,61,.3);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1px solid var(--brand);color:var(--brand);background:transparent;}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark{background:var(--brand);color:#fff;box-shadow:var(--shadow-brand);}
.btn-dark:hover{background:#7C4DFF;transform:translateY(-1px);}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px;}
.btn-link span{transition:transform .18s ease;}
.btn-link:hover span{transform:translateX(3px);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;line-height:1.6;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-time{background:rgba(255,106,61,.13);color:var(--coral);}
.badge-lime{background:var(--lime);color:#12110F;}

/* ---------- hero (light) ---------- */
.page-hero{
  position:relative;background:var(--bg-light);overflow:hidden;
  padding:40px 0 84px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(109,59,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(109,59,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(circle at 78% 22%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 78% 22%,#000,transparent 72%);
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.06fr .94fr;
  gap:56px;align-items:center;
}
.hero-eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap;}
.hero-title{
  font-size:clamp(28px,4.6vw,44px);font-weight:900;line-height:1.24;
  letter-spacing:-.01em;color:var(--text);
}
.hero-title em{
  font-style:normal;color:var(--brand);
  background:linear-gradient(180deg,transparent 66%,rgba(200,255,61,.6) 66%);
  padding:0 2px;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:42px;padding-top:26px;border-top:1px solid var(--line-light);}
.hero-stat strong{display:block;font-size:24px;font-weight:900;color:var(--ink);letter-spacing:-.01em;}
.hero-stat span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual::after{
  content:"";position:absolute;inset:auto -8% -10% 22%;height:60%;
  background:radial-gradient(closest-side,rgba(109,59,255,.28),transparent);
  filter:blur(28px);z-index:0;
}
.hero-frame{
  position:relative;z-index:1;border-radius:24px;overflow:hidden;
  border:1px solid var(--line-light);background:#fff;
  box-shadow:0 26px 60px rgba(26,26,36,.14);
  aspect-ratio:4/3;
}
.hero-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.hero-frame:hover img{transform:scale(1.04);}
.hero-tag{
  position:absolute;z-index:2;left:-14px;bottom:34px;
  background:#fff;border:1px solid var(--line-light);border-radius:14px;
  padding:12px 16px;box-shadow:var(--shadow-soft);display:flex;align-items:center;gap:10px;
}
.hero-tag b{font-size:15px;color:var(--ink);}
.hero-tag small{display:block;font-size:12px;color:var(--muted);}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-light{background:var(--bg-light);}
.section-white{background:#fff;}
.section-dark{background:var(--ink);color:#EDEDF5;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
  color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;
}
.section-title{font-size:clamp(23px,2.6vw,28px);font-weight:800;letter-spacing:-.01em;line-height:1.35;}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;}
.section-dark .section-title{color:#fff;}
.section-dark .section-desc{color:var(--muted-dark);}
.section-dark .section-kicker{color:var(--lime);}

/* ---------- split blocks ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split+.split{margin-top:80px;}
.split.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--radius-card);overflow:hidden;position:relative;
  border:1px solid var(--line-light);box-shadow:var(--shadow-soft);
  aspect-ratio:16/11;background:#EDEBFA;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.split-media:hover img{transform:scale(1.04);}
.split-body h3{font-size:22px;font-weight:800;letter-spacing:-.01em;}
.split-body>p{margin-top:14px;color:var(--muted);}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;}
.check-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:2px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;
}
.check-list b{color:var(--text);}
.check-list span{color:var(--muted);}

/* ---------- scenario staggered grid ---------- */
.stagger{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;}
.stagger-col{display:flex;flex-direction:column;gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-brand);}
.scene-card.tall{padding:36px;display:flex;flex-direction:column;justify-content:space-between;gap:28px;}
.scene-num{
  font-size:13px;font-weight:900;color:var(--brand);letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.scene-card h3{margin-top:14px;font-size:19px;font-weight:800;}
.scene-card p{margin-top:10px;color:var(--muted);font-size:15px;}
.scene-card .scene-cover{
  margin-top:22px;border-radius:12px;overflow:hidden;border:1px solid var(--line-light);
  aspect-ratio:16/9;
}
.scene-card .scene-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;background:var(--ink-card);border:1px solid var(--ink-line);
  border-radius:var(--radius-card);padding:30px 26px 28px;
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--brand);transform:translateY(-4px);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:20px;right:22px;
  font-size:13px;font-weight:900;color:var(--lime);letter-spacing:.08em;
}
.step h3{color:#fff;font-size:18px;font-weight:800;margin-top:26px;}
.step p{color:var(--muted-dark);font-size:14.5px;margin-top:10px;}
.step-bar{height:4px;border-radius:99px;background:rgba(255,255,255,.12);margin-top:22px;overflow:hidden;}
.step-bar i{display:block;height:100%;border-radius:99px;background:var(--lime);width:34%;}
.step:nth-child(2) .step-bar i{width:67%;background:linear-gradient(90deg,var(--lime),#8CE0FF);}
.step:nth-child(3) .step-bar i{width:100%;background:linear-gradient(90deg,var(--lime),var(--brand));}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line-light);border-radius:14px;background:#fff;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D6D4E8;box-shadow:var(--shadow-soft);}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--shadow-brand);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:58px;padding:16px 22px;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-q:hover{background:rgba(109,59,255,.04);}
.faq-plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;line-height:1;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-plus{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 22px 20px;color:var(--muted);font-size:15px;}
.faq-a-inner p+p{margin-top:10px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#EDEDF5;
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(109,59,255,.35),transparent 46%),
                   linear-gradient(300deg,rgba(200,255,61,.16),transparent 44%);
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:#fff;letter-spacing:-.01em;}
.cta-inner p{margin-top:12px;color:var(--muted-dark);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:#0A0910;color:#B9B8C8;padding:64px 0 0;border-top:1px solid var(--ink-line);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:#8E8DA3;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li,.footer-col a{font-size:14px;color:#9C9BB0;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--ink-line);padding:22px 0;
  font-size:13px;color:#7C7B90;
}
.footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:0 20px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-search,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .main-nav{display:none;}
  .hot-words{flex:1 1 auto;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .stagger{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:64px 0;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .brand-text{font-size:14.5px;}
  .header-channels{display:none;}
  .hero-stats{gap:22px;}
  .hero-stat strong{font-size:21px;}
  .hero-tag{left:12px;bottom:12px;}
  .page-hero{padding:28px 0 56px;}
  .section{padding:56px 0;}
  .scene-card,.step{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a-inner{padding:0 16px 18px;}
}

/* roulang page: article */
:root{
  --brand:#6D3BFF;
  --brand-deep:#4A22C9;
  --brand-soft:rgba(109,59,255,.12);
  --lime:#C8FF3D;
  --coral:#FF6A3D;
  --ink:#0C0B12;
  --ink-card:#16151F;
  --ink-line:#262538;
  --paper:#F6F6FB;
  --paper-2:#EFEEF7;
  --paper-card:#FFFFFF;
  --paper-line:#E8E8F2;
  --text:#1A1A24;
  --muted:#5C5C70;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-purple:0 12px 32px rgba(109,59,255,.18);
  --shadow-soft:0 6px 20px rgba(12,11,18,.06);
  --maxw:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;padding:0}
html body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
svg{max-width:100%}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button{font:inherit;cursor:pointer;border:0;background:none}
input{font:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
body .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(12,11,18,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--ink-line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.35)}
.header-top{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:74px;transition:height .2s ease;
}
.site-header.is-stuck .header-top{height:56px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;min-width:0}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#3E1FA8);
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(109,59,255,.45);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#191824;border:1px solid var(--ink-line);
  border-radius:999px;padding:5px 5px 5px 16px;min-width:280px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input{background:transparent;border:0;outline:none;color:#fff;width:100%;font-size:14px;padding:6px 0}
.search-box input::placeholder{color:#8A8AA0}
.search-box .search-btn{
  width:32px;height:32px;flex:0 0 auto;border-radius:999px;
  background:var(--brand);display:grid;place-items:center;color:#fff;
  transition:background .18s ease,transform .18s ease;
}
.search-box .search-btn:hover{background:#8259FF}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,59,255,.28)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-weight:700;font-size:14.5px;
  padding:11px 22px;line-height:1.2;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--lime);color:#0C0B12;box-shadow:0 10px 24px rgba(200,255,61,.22)}
.btn-primary:hover{background:#D6FF6A;transform:translateY(-1px);box-shadow:0 14px 28px rgba(200,255,61,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(109,59,255,.65);color:#E7E1FF;background:rgba(109,59,255,.1)}
.btn-ghost:hover{background:rgba(109,59,255,.22);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--ink-line);color:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--lime)}
.header-bar{border-top:1px solid rgba(38,37,56,.75)}
.header-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:50px}
.main-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;color:#BEBECC;font-size:14.5px;
  padding:8px 12px;border-radius:8px;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.hot-strip{
  display:flex;align-items:center;gap:8px;
  overflow:hidden;flex:0 1 auto;
  mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
}
.hot-chip{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:rgba(200,255,61,.12);color:var(--lime);
  border:1px solid rgba(200,255,61,.28);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.hot-chip:hover{background:var(--lime);color:#0C0B12}

/* ============ drawer ============ */
.drawer{position:fixed;inset:0;z-index:80;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(6,5,12,.62);opacity:0;transition:opacity .2s ease}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;width:80%;max-width:340px;height:100%;
  background:#12111A;border-left:1px solid var(--ink-line);
  padding:20px 20px 40px;overflow-y:auto;
  transform:translateX(100%);transition:transform .24s ease;
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.drawer-title{color:#fff;font-weight:800;font-size:16px}
.drawer-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--ink-line);color:#D8D8E4;font-size:18px;line-height:1;display:grid;place-items:center}
.drawer-close:hover{border-color:var(--brand);color:var(--lime)}
.drawer-search{min-width:0;width:100%;margin-bottom:20px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--ink-line);padding-top:14px}
.drawer-nav .nav-link{display:block;padding:12px 12px}
.drawer-nav .nav-link::after{left:12px;right:auto;width:26px;bottom:6px}
.drawer-hot{margin-top:22px;border-top:1px solid var(--ink-line);padding-top:16px}
.drawer-hot h3{color:#fff;font-size:14px;margin-bottom:12px}
.drawer-hot .chips{display:flex;flex-wrap:wrap;gap:8px}

/* ============ breadcrumb ============ */
.page-main{background:var(--paper)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);padding:22px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B9B9CC}
.breadcrumb .current{color:var(--text);max-width:min(60vw,340px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ article hero ============ */
.article-hero{padding:20px 0 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;font-size:12px;font-weight:700;
  padding:4px 12px;line-height:1.6;
}
.badge-cat{background:var(--brand-soft);color:var(--brand-deep)}
.badge-time{background:rgba(255,106,61,.14);color:#D9451A}
.badge-lime{background:var(--lime);color:#0C0B12}
.article-title{
  font-size:clamp(27px,3.6vw,42px);line-height:1.3;font-weight:800;
  letter-spacing:-.015em;color:var(--text);margin:16px 0 14px;max-width:940px;
}
.article-lead{font-size:16.5px;color:var(--muted);max-width:820px;margin-bottom:18px}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13.5px;color:var(--muted);
  padding:16px 0 22px;border-bottom:1px solid var(--paper-line);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.article-meta .meta-item svg{width:15px;height:15px;color:#9A9AB0}
.article-cover{
  margin:26px 0 40px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--paper-line);box-shadow:var(--shadow-soft);
  aspect-ratio:21/9;background:linear-gradient(135deg,#2A1B5E,#0C0B12);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ============ layout ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 260px;
  gap:48px;justify-content:center;padding-bottom:24px;align-items:start;
}
.article-layout.no-toc{grid-template-columns:minmax(0,760px)}
.article-main{min-width:0}

/* ============ article body ============ */
.article-body{font-size:16px;line-height:1.85;color:#2A2A38;max-width:760px}
.article-body > * + *{margin-top:1.25em}
.article-body h2{
  position:relative;font-size:clamp(21px,2.3vw,25px);font-weight:800;
  color:var(--text);line-height:1.45;letter-spacing:-.01em;
  margin-top:2.1em;padding-left:15px;scroll-margin-top:130px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:var(--brand);
}
.article-body h3{font-size:19px;font-weight:800;color:var(--text);margin-top:1.7em;scroll-margin-top:130px}
.article-body h4{font-size:17px;font-weight:700;color:var(--text);margin-top:1.5em}
.article-body p{color:#2A2A38}
.article-body strong{color:var(--text)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-deep)}
.article-body ul{list-style:disc;padding-left:1.45em}
.article-body ol{list-style:decimal;padding-left:1.45em}
.article-body li{margin-top:.55em}
.article-body li::marker{color:var(--brand)}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--shadow-soft)}
.article-body figure{margin:1.7em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body blockquote{
  margin:1.7em 0;padding:16px 20px;border-left:4px solid var(--brand);
  background:rgba(109,59,255,.06);border-radius:0 var(--r-md) var(--r-md) 0;
  color:#3B3B4E;font-size:15.5px;
}
.article-body blockquote p{margin:0;color:inherit}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14.5px;
  display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.article-body th,.article-body td{border:1px solid var(--paper-line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#F0EFFA;color:var(--text);font-weight:700}
.article-body code{background:#EFEEF8;color:#4A22C9;padding:2px 6px;border-radius:6px;font-size:.92em}
.article-body pre{
  background:#12111A;color:#E8E8F2;padding:18px;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--paper-line);margin:2.2em 0}

/* ============ toc ============ */
.article-side{min-width:0}
.toc-panel{
  position:sticky;top:126px;background:var(--paper-card);
  border:1px solid var(--paper-line);border-radius:var(--r-lg);
  padding:18px 18px 14px;box-shadow:var(--shadow-soft);
}
.toc-title{font-size:15px;font-weight:800;color:var(--text);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.toc-title span{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
.toc-list{max-height:56vh;overflow-y:auto;scrollbar-width:thin}
.toc-link{
  display:block;font-size:13.5px;color:var(--muted);line-height:1.55;
  padding:7px 0 7px 13px;border-left:2px solid var(--paper-line);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.toc-link:hover{color:var(--brand);border-color:var(--brand);background:rgba(109,59,255,.05)}
.toc-link.is-current{color:var(--brand);border-color:var(--brand);font-weight:700}
.toc-mobile{
  display:none;background:var(--paper-card);border:1px solid var(--paper-line);
  border-radius:var(--r-md);padding:14px 18px;margin-bottom:26px;
}
.toc-mobile summary{
  cursor:pointer;font-weight:800;font-size:15px;color:var(--text);
  list-style:none;display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--brand);font-weight:700;font-size:18px}
.toc-mobile[open] summary::after{content:"−"}
.toc-mobile .toc-list{margin-top:10px}

/* ============ article foot ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:38px}
.tag{
  font-size:13px;padding:5px 13px;border-radius:999px;
  border:1px solid var(--paper-line);background:#fff;color:var(--muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:rgba(109,59,255,.05)}
.article-foot{
  margin-top:28px;padding-top:20px;border-top:1px solid var(--paper-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.foot-note{font-size:13.5px;color:var(--muted)}
.btn-copy{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  padding:9px 18px;border-radius:999px;border:1px solid var(--paper-line);
  background:#fff;color:var(--text);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.btn-copy:hover{border-color:var(--brand);color:var(--brand)}
.btn-copy.is-done{border-color:var(--lime);background:var(--lime);color:#0C0B12}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px}
.post-nav a{
  display:block;padding:16px 18px;border:1px solid var(--paper-line);
  border-radius:var(--r-md);background:#fff;font-size:13px;color:var(--muted);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.post-nav a:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.post-nav a strong{display:block;margin-top:6px;font-size:15px;color:var(--text);font-weight:700}
.quick-card{
  margin-top:32px;border-radius:var(--r-lg);padding:26px;
  background:linear-gradient(135deg,#16151F 0%,#2A1B5E 100%);
  color:#fff;box-shadow:var(--shadow-purple);
}
.quick-card h3{font-size:19px;font-weight:800;margin-bottom:8px}
.quick-card p{color:#C2C2D6;font-size:14px}
.quick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:18px}
.quick-item{
  display:block;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);
  padding:14px 16px;transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.quick-item:hover{background:rgba(200,255,61,.14);border-color:rgba(200,255,61,.5);transform:translateY(-2px)}
.quick-item b{display:block;font-size:14.5px;color:#fff;margin-bottom:4px}
.quick-item small{font-size:12.5px;color:#B9B9D0}
.article-empty{
  background:var(--paper-card);border:1px solid var(--paper-line);
  border-radius:var(--r-lg);padding:56px 28px;text-align:center;box-shadow:var(--shadow-soft);
}
.article-empty .empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:linear-gradient(135deg,var(--brand),#3E1FA8);display:grid;place-items:center;
}
.article-empty h2{font-size:22px;font-weight:800;color:var(--text);margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;max-width:520px;margin:0 auto 22px}

/* ============ related ============ */
.related{background:var(--paper-2);padding:64px 0 76px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}
.section-title{font-size:clamp(22px,2.6vw,27px);font-weight:800;color:var(--text);letter-spacing:-.01em}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px}
.more-link{font-size:14.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.more-link span{transition:transform .18s ease}
.more-link:hover{color:var(--brand-deep)}
.more-link:hover span{transform:translateX(3px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:block;background:#fff;border:1px solid var(--paper-line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-purple)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#3B2A7A,#12111A)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:18px 20px 20px}
.card-title{
  font-size:17px;font-weight:800;color:var(--text);line-height:1.5;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.card-foot .read{color:var(--brand);font-weight:700}

/* ============ cta ============ */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:66px 0}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:560px;height:560px;
  background:radial-gradient(circle,rgba(109,59,255,.55),transparent 62%);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:-8%;bottom:-60%;width:420px;height:420px;
  background:radial-gradient(circle,rgba(200,255,61,.22),transparent 64%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-inner h2{font-size:clamp(23px,2.8vw,32px);font-weight:800;letter-spacing:-.012em;margin-bottom:10px}
.cta-inner p{color:#C6C6DA;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#B9B9CC;padding-top:58px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand{color:#fff;font-size:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:#8E8EA4;margin-top:14px;max-width:330px}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:14px}
.footer-col li{margin-bottom:10px;font-size:14px;color:#9A9AB0}
.footer-col a{color:#9A9AB0}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid var(--ink-line);padding:18px 0}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7A7A90}

/* ============ responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,760px);justify-content:center}
  .article-side{display:none}
  .toc-mobile{display:block}
}
@media (max-width:1023px){
  .main-nav,.hot-strip{display:none}
  .header-bar{display:none}
  .nav-toggle{display:flex}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .search-box{display:none}
  .article-cover{aspect-ratio:16/9;margin:22px 0 32px}
}
@media (max-width:767px){
  body .container{padding:0 16px}
  .header-top{height:64px}
  .brand-text{font-size:15px;max-width:170px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;padding-bottom:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .related{padding:52px 0 60px}
  .article-title{margin-top:12px}
}
@media (max-width:519px){
  .article-meta{gap:8px 14px;font-size:13px}
  .quick-card{padding:20px}
  .article-empty{padding:40px 20px}
  .btn{padding:11px 18px}
}

/* roulang page: category2 */
:root{
    --violet:#6D3BFF;
    --violet-deep:#4E22D6;
    --lime:#C8FF3D;
    --coral:#FF6A3D;
    --ink:#0C0B12;
    --dark-card:#16151F;
    --dark-line:#262538;
    --light-bg:#F6F6FB;
    --light-card:#FFFFFF;
    --light-line:#E8E8F2;
    --text:#1A1A24;
    --muted:#5C5C70;
    --radius-card:16px;
    --radius-btn:11px;
    --shadow-purple:0 12px 32px rgba(109,59,255,.18);
    --shadow-soft:0 10px 26px rgba(26,26,36,.08);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    overflow-x:hidden;
    background:var(--light-bg);
    color:var(--text);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none;transition:color .18s ease}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  .tnum{font-variant-numeric:tabular-nums}

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 20px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(12,11,18,.94);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--dark-line);
    color:#fff;
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:0 12px 30px rgba(0,0,0,.34)}
  .header-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    height:68px;
    transition:height .2s ease;
  }
  .site-header.is-scrolled .header-top{height:56px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    background:linear-gradient(135deg,var(--violet),#9B78FF);
    display:grid;place-items:center;
    box-shadow:0 8px 20px rgba(109,59,255,.35);
  }
  .brand-mark svg{width:19px;height:19px}
  .brand-text{
    font-size:16px;
    font-weight:800;
    letter-spacing:-.01em;
    color:#fff;
    white-space:nowrap;
  }
  .header-actions{display:flex;align-items:center;gap:12px}
  .search-box{position:relative;display:flex;align-items:center}
  .search-box svg{
    position:absolute;left:12px;width:16px;height:16px;
    stroke:#8A8A9C;fill:none;pointer-events:none;
  }
  .search-box input{
    width:236px;height:38px;
    padding:0 14px 0 38px;
    border-radius:var(--radius-btn);
    background:#1B1A24;
    border:1px solid var(--dark-line);
    color:#fff;font-size:14px;outline:none;
    transition:border-color .18s,box-shadow .18s,background .18s;
  }
  .search-box input::placeholder{color:#8A8A9C}
  .search-box input:focus{
    border-color:var(--violet);
    background:#201E2C;
    box-shadow:0 0 0 3px rgba(109,59,255,.28);
  }
  .hamburger{
    display:none;
    position:relative;
    width:40px;height:40px;
    padding:0;
    border-radius:10px;
    border:1px solid var(--dark-line);
    background:#1B1A24;
    cursor:pointer;
  }
  .hamburger span{
    position:absolute;left:11px;right:11px;height:2px;
    background:#fff;border-radius:2px;
    transition:transform .2s,opacity .2s;
  }
  .hamburger span:nth-child(1){top:14px}
  .hamburger span:nth-child(2){top:19px}
  .hamburger span:nth-child(3){top:24px}

  .nav-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding-bottom:10px;
    border-top:1px solid rgba(255,255,255,.06);
    padding-top:6px;
  }
  .main-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
  .main-nav::-webkit-scrollbar{display:none}
  .nav-link{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    color:#C9C7D6;
    border-radius:8px;
    white-space:nowrap;
    transition:color .18s,background .18s;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
  .nav-link.is-active{color:#fff;font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;
    height:2px;border-radius:2px;background:var(--lime);
  }
  .nav-link:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
  .hot-links{
    display:flex;align-items:center;gap:8px;
    overflow-x:auto;scrollbar-width:none;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
  }
  .hot-links::-webkit-scrollbar{display:none}
  .hot-link{
    white-space:nowrap;
    font-size:13px;
    padding:5px 12px;
    border-radius:999px;
    background:rgba(255,255,255,.06);
    color:#CFCDDC;
    border:1px solid transparent;
    transition:background .18s,color .18s,border-color .18s;
  }
  .hot-link:hover{background:rgba(200,255,61,.14);color:var(--lime);border-color:rgba(200,255,61,.32)}

  /* ============ 移动抽屉 ============ */
  .drawer-mask{
    position:fixed;inset:0;z-index:70;
    background:rgba(6,6,10,.62);
    opacity:0;pointer-events:none;
    transition:opacity .26s ease;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:80;
    width:80%;max-width:360px;
    padding:22px 20px 40px;
    background:#111019;
    border-left:1px solid var(--dark-line);
    transform:translateX(101%);
    transition:transform .26s ease;
    overflow-y:auto;
    color:#fff;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;
    border:1px solid var(--dark-line);background:#1B1A24;
    color:#fff;cursor:pointer;font-size:18px;line-height:1;
  }
  .drawer-close:hover{border-color:var(--violet)}
  .drawer-title{font-size:13px;color:#8A8A9C;letter-spacing:.08em;margin:20px 0 10px}
  .drawer-links{display:grid;gap:6px}
  .drawer-links a{
    display:block;padding:11px 14px;border-radius:12px;
    background:#181724;border:1px solid var(--dark-line);
    font-size:15px;color:#DAD8E6;
  }
  .drawer-links a:hover{border-color:rgba(200,255,61,.4);color:var(--lime)}
  .drawer-links a.is-active{color:#12131A;background:var(--lime);font-weight:700;border-color:var(--lime)}
  .drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
  .drawer-tags a{font-size:13px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.07);color:#CFCDDC}
  .drawer-tags a:hover{color:var(--lime)}

  /* ============ 按钮 / 徽章 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border:1px solid transparent;border-radius:var(--radius-btn);
    font-weight:600;font-size:15px;
    padding:12px 22px;
    cursor:pointer;
    transition:transform .18s,background .18s,box-shadow .18s,border-color .18s,color .18s;
  }
  .btn-sm{padding:9px 16px;font-size:14px}
  .btn-primary{background:var(--lime);color:#12131A}
  .btn-primary:hover{background:#D5FF66;transform:translateY(-1px);box-shadow:0 12px 26px rgba(200,255,61,.28)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(109,59,255,.65)}
  .btn-ghost:hover{background:rgba(109,59,255,.18);border-color:var(--violet)}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.26)}
  .btn-outline-light:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}
  .btn-outline-dark{background:transparent;color:var(--violet);border-color:rgba(109,59,255,.45)}
  .btn-outline-dark:hover{background:rgba(109,59,255,.09);border-color:var(--violet)}
  .btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1.6;
  }
  .badge-lime{background:var(--lime);color:#12131A}
  .badge-violet{background:rgba(109,59,255,.14);color:var(--violet)}
  .badge-coral{background:rgba(255,106,61,.15);color:var(--coral)}

  /* ============ Hero ============ */
  .hero{
    position:relative;
    overflow:hidden;
    background:var(--ink);
    color:#fff;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity:.3;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:46px 46px;
    -webkit-mask-image:radial-gradient(120% 90% at 75% 10%,#000 10%,transparent 72%);
    mask-image:radial-gradient(120% 90% at 75% 10%,#000 10%,transparent 72%);
    pointer-events:none;
  }
  .hero > .container{position:relative;z-index:2}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    padding:22px 0 0;
    font-size:13px;color:#8A88A0;
  }
  .breadcrumb a:hover{color:var(--lime)}
  .breadcrumb .current{color:#D6D4E4}
  .hero-inner{
    display:grid;
    grid-template-columns:1.06fr .94fr;
    gap:52px;
    align-items:center;
    padding:52px 0 84px;
  }
  .hero h1{
    margin-top:18px;
    font-size:clamp(28px,4.6vw,44px);
    font-weight:850;
    line-height:1.18;
    letter-spacing:-.01em;
  }
  .hero-sub{
    margin-top:18px;
    max-width:540px;
    font-size:17px;
    line-height:1.8;
    color:#C6C4D4;
  }
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:38px;margin-top:42px}
  .hero-stat strong{
    display:block;
    font-size:26px;
    font-weight:800;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .hero-stat span{font-size:13px;color:#9A98AC}
  .hero-media{
    position:relative;
    border-radius:20px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.14);
    box-shadow:0 30px 70px rgba(109,59,255,.3);
  }
  .hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(12,11,18,0) 45%,rgba(12,11,18,.5));
    pointer-events:none;
  }

  /* ============ 板块 ============ */
  .section{padding:96px 0}
  .section-light{background:var(--light-bg)}
  .section-white{background:#fff}
  .section-dark{background:var(--ink);color:#fff;position:relative;overflow:hidden}
  .section-dark::before{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:52px 52px;
    -webkit-mask-image:radial-gradient(70% 70% at 20% 0%,#000,transparent 78%);
    mask-image:radial-gradient(70% 70% at 20% 0%,#000,transparent 78%);
    pointer-events:none;
  }
  .section-dark > .container{position:relative;z-index:2}
  .section-head{max-width:760px;margin-bottom:44px}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center}
  .section-title{
    font-size:clamp(22px,2.7vw,28px);
    font-weight:800;
    letter-spacing:-.01em;
    line-height:1.35;
  }
  .section-desc{margin-top:12px;font-size:15.5px;color:var(--muted)}
  .section-dark .section-desc{color:#A9A7B8}

  /* ============ 编号时间轴 ============ */
  .timeline{position:relative;margin-top:6px}
  .timeline::before{
    content:"";position:absolute;left:29px;top:16px;bottom:34px;width:2px;
    background:linear-gradient(180deg,var(--violet),rgba(109,59,255,.06));
  }
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:60px 1fr;
    gap:26px;
    padding-bottom:34px;
  }
  .tl-item:last-child{padding-bottom:0}
  .tl-num{
    position:relative;z-index:2;
    width:60px;height:60px;
    border-radius:16px;
    background:#fff;
    border:1px solid var(--light-line);
    display:grid;place-items:center;
    font-weight:800;font-size:18px;color:var(--violet);
    font-variant-numeric:tabular-nums;
    box-shadow:0 8px 20px rgba(109,59,255,.1);
    transition:border-color .2s,transform .2s;
  }
  .tl-item:hover .tl-num{border-color:rgba(109,59,255,.5);transform:translateY(-2px)}
  .tl-body h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
  .tl-body p{margin-top:8px;color:var(--muted);font-size:15px;max-width:760px}

  /* ============ 场景卡 ============ */
  .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .scene-card{
    background:#fff;
    border:1px solid var(--light-line);
    border-radius:var(--radius-card);
    padding:26px 24px;
    transition:transform .2s,border-color .2s,box-shadow .2s;
  }
  .scene-card:hover{transform:translateY(-4px);border-color:rgba(109,59,255,.45);box-shadow:var(--shadow-purple)}
  .scene-icon{
    width:42px;height:42px;border-radius:12px;
    background:rgba(109,59,255,.1);
    display:grid;place-items:center;
    margin-bottom:16px;
  }
  .scene-icon svg{width:20px;height:20px;stroke:var(--violet);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
  .scene-card h3{font-size:17px;font-weight:700}
  .scene-card p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.75}

  /* ============ 准备清单 ============ */
  .check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 20px}
  .check-item{
    display:flex;gap:12px;align-items:flex-start;
    background:#fff;
    border:1px solid var(--light-line);
    border-radius:14px;
    padding:16px 18px;
    transition:border-color .18s,box-shadow .18s;
  }
  .check-item:hover{border-color:rgba(109,59,255,.4);box-shadow:0 10px 24px rgba(109,59,255,.1)}
  .check-item .tick{
    flex:0 0 auto;
    width:22px;height:22px;margin-top:3px;
    border-radius:7px;
    background:rgba(109,59,255,.12);
    display:grid;place-items:center;
  }
  .check-item .tick svg{width:13px;height:13px;stroke:var(--violet);fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
  .check-item p{font-size:14.5px;color:#33333F}
  .check-note{
    margin-top:22px;
    display:flex;align-items:center;gap:10px;
    font-size:13.5px;color:var(--muted);
  }
  .check-note span.dot{width:6px;height:6px;border-radius:50%;background:var(--coral);flex:0 0 auto}

  /* ============ 步骤 ============ */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .step-card{
    background:var(--dark-card);
    border:1px solid var(--dark-line);
    border-radius:var(--radius-card);
    padding:28px 26px;
    transition:transform .2s,border-color .2s,box-shadow .2s;
  }
  .step-card:hover{transform:translateY(-4px);border-color:rgba(200,255,61,.45);box-shadow:0 18px 40px rgba(109,59,255,.24)}
  .step-idx{
    font-size:13px;font-weight:800;letter-spacing:.14em;
    color:var(--lime);font-variant-numeric:tabular-nums;
  }
  .step-card h3{margin-top:14px;font-size:18px;font-weight:700;color:#fff}
  .step-card p{margin-top:10px;font-size:14.5px;color:#A9A7B8;line-height:1.75}
  .step-tip{
    margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;
  }
  .step-tip .badge-violet{background:rgba(109,59,255,.2);color:#C6B4FF}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px;max-width:900px}
  .faq-item{
    background:#fff;
    border:1px solid var(--light-line);
    border-radius:14px;
    overflow:hidden;
    transition:border-color .18s,box-shadow .18s;
  }
  .faq-item[open]{border-color:rgba(109,59,255,.42);box-shadow:0 12px 28px rgba(109,59,255,.1)}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;
    min-height:56px;
    font-size:16px;font-weight:600;
    transition:background .18s;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:rgba(109,59,255,.05)}
  .faq-item summary:focus-visible{outline:2px solid var(--violet);outline-offset:-2px}
  .faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--violet);border-radius:2px;
  }
  .faq-icon::before{left:0;right:0;top:8px;height:2px}
  .faq-icon::after{top:0;bottom:0;left:8px;width:2px;transition:transform .2s ease}
  .faq-item[open] .faq-icon::after{transform:scaleY(0)}
  .faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted)}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:linear-gradient(118deg,#1B1038 0%,#0C0B12 62%);
    color:#fff;
  }
  .cta-band::after{
    content:"";position:absolute;right:-120px;top:-120px;
    width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(109,59,255,.55),transparent 66%);
    pointer-events:none;
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;
    gap:28px;flex-wrap:wrap;
    padding:60px 0;
  }
  .cta-inner h2{font-size:clamp(21px,2.5vw,27px);font-weight:800;letter-spacing:-.01em}
  .cta-inner p{margin-top:12px;max-width:560px;font-size:15.5px;color:#B4B2C4}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}

  /* ============ 页脚 ============ */
  .site-footer{background:#08070C;color:#B9B7C7;border-top:1px solid var(--dark-line)}
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:36px;
    padding:56px 20px;
  }
  .footer-brand .brand-text{font-size:16px}
  .footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#8E8C9E;max-width:330px}
  .footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
  .footer-col ul{display:grid;gap:10px;font-size:14px}
  .footer-col li{color:#8E8C9E}
  .footer-col a:hover{color:var(--lime)}
  .footer-bottom{border-top:1px solid var(--dark-line);padding:18px 0;font-size:13px;color:#77758A}
  .footer-bottom .container{padding:0 20px !important}

  /* ============ 响应式 ============ */
  @media (max-width:1280px){
    .hero-inner{gap:40px}
  }
  @media (max-width:1023px){
    .search-box{display:none}
    .hamburger{display:block}
    .nav-row{display:none}
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:34px 0 64px}
    .hero-media{order:2}
    .scene-grid{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:1fr;gap:16px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    .section{padding:72px 0}
  }
  @media (max-width:767px){
    .container{padding:0 16px}
    .brand-text{font-size:15px}
    .check-grid{grid-template-columns:1fr}
    .scene-grid{grid-template-columns:1fr;gap:14px}
    .section{padding:56px 0}
    .section-head{margin-bottom:32px}
    .timeline::before{left:23px}
    .tl-item{grid-template-columns:48px 1fr;gap:18px}
    .tl-num{width:48px;height:48px;border-radius:13px;font-size:16px}
    .hero-stats{gap:26px;margin-top:32px}
    .hero-stat strong{font-size:22px}
    .cta-inner{padding:44px 0;flex-direction:column;align-items:flex-start}
    .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 16px}
    .footer-bottom{padding:16px 0}
    .footer-bottom .container{padding:0 16px !important}
  }
  @media (max-width:520px){
    .btn{width:100%}
    .hero-cta .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .header-actions .btn-sm{width:auto}
    .footer-bottom .container{flex-direction:column;gap:6px}
  }

/* roulang page: category3 */
:root{
  --brand:#6D3BFF;
  --brand-soft:rgba(109,59,255,.12);
  --lime:#C8FF3D;
  --coral:#FF6A3D;
  --deep:#0C0B12;
  --deep-2:#16151F;
  --deep-line:#262538;
  --light-bg:#F6F6FB;
  --light-card:#FFFFFF;
  --light-line:#E8E8F2;
  --text:#1A1A24;
  --muted:#5C5C70;
  --on-deep-muted:#A7A4BC;
  --radius-card:16px;
  --radius-btn:11px;
  --shadow-card:0 12px 32px rgba(109,59,255,.12);
  --shadow-pop:0 16px 40px rgba(109,59,255,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--text);font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul{list-style:none;margin:0;padding:0}
p{margin:0}
[hidden]{display:none !important}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-weight:800;font-size:15px;padding:13px 24px;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,filter .18s ease;white-space:nowrap}
.btn-primary{background:var(--lime);color:#0C0B12;box-shadow:0 10px 26px rgba(200,255,61,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 32px rgba(200,255,61,.38);color:#0C0B12}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(109,59,255,.45);color:var(--brand)}
.btn-ghost:hover{background:rgba(109,59,255,.08);color:var(--brand);transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.btn-ghost:focus-visible{outline-color:var(--brand)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:700;padding:4px 12px;letter-spacing:.02em}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-time{background:rgba(255,106,61,.14);color:#D9481F}
.badge-hot{background:var(--lime);color:#0C0B12}
.badge-line{border:1px solid var(--deep-line);color:var(--on-deep-muted)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(12,11,18,.93);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--deep-line);color:#fff;transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.35)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;height:66px;transition:height .22s ease}
.site-header.is-stuck .header-top{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,var(--brand),#3A1E9E);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(109,59,255,.4)}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:900;letter-spacing:-.01em;color:#fff}
.header-tools{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.06);border:1px solid var(--deep-line);border-radius:999px;padding:3px 4px 3px 14px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(109,59,255,.25)}
.search-box input{background:transparent;border:0;outline:none;color:#fff;font-size:14px;width:190px}
.search-box input::placeholder{color:#7A7791}
.search-box button{width:30px;height:30px;border-radius:999px;background:rgba(109,59,255,.22);color:#fff;display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s ease}
.search-box button:hover{background:var(--brand)}
.search-box svg{width:15px;height:15px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--deep-line);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:17px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-bar{border-top:1px solid var(--deep-line)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:50px}
.main-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.nav-link{position:relative;padding:14px 12px;font-size:14.5px;color:#CFCBDE;white-space:nowrap;font-weight:600}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;font-weight:800}
.nav-link.is-active::after{transform:scaleX(1)}
.hot-links{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:#8E8AA8;overflow:hidden;position:relative;padding-left:24px}
.hot-links::before{content:"";position:absolute;left:0;top:0;bottom:0;width:24px;background:linear-gradient(90deg,rgba(12,11,18,.95),transparent);pointer-events:none}
.hot-links::after{content:"";position:absolute;right:0;top:0;bottom:0;width:24px;background:linear-gradient(270deg,rgba(12,11,18,.95),transparent);pointer-events:none}
.hot-label{color:var(--lime);font-weight:800;font-size:12px;letter-spacing:.04em}
.hot-links a{color:#B9B5CC;white-space:nowrap}
.hot-links a:hover{color:var(--lime)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(6,5,10,.6);backdrop-filter:blur(2px);z-index:60}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:80%;max-width:360px;background:var(--deep);border-left:1px solid var(--deep-line);z-index:61;padding:22px 20px 32px;transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);overflow-y:auto;color:#fff}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:800;color:#fff}
.drawer-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--deep-line);color:#fff;font-size:20px;line-height:1;display:inline-flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--brand);color:var(--lime)}
.search-box-mobile{width:100%;margin-bottom:18px}
.search-box-mobile input{width:100%;flex:1}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.drawer-link{padding:13px 14px;border-radius:12px;border:1px solid transparent;font-size:15px;color:#CFCBDE;font-weight:600}
.drawer-link:hover{background:rgba(109,59,255,.14);color:#fff}
.drawer-link.is-active{background:rgba(109,59,255,.2);border-color:rgba(109,59,255,.5);color:#fff;font-weight:800}
.drawer-hot{margin-bottom:22px}
.drawer-hot h5{font-size:12px;letter-spacing:.06em;color:var(--lime);font-weight:800;margin:0 0 10px}
.drawer-hot .tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-hot .tags a{font-size:12.5px;border:1px solid var(--deep-line);border-radius:999px;padding:5px 12px;color:#B9B5CC}
.drawer-hot .tags a:hover{border-color:var(--lime);color:var(--lime)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--light-bg);border-bottom:1px solid var(--light-line);padding:60px 0 68px}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(109,59,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(109,59,255,.055) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 78%);mask-image:linear-gradient(180deg,#000,transparent 78%);pointer-events:none}
.hero::after{content:"";position:absolute;top:-160px;right:-150px;width:560px;height:560px;background:radial-gradient(circle,rgba(109,59,255,.18),transparent 68%);pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero-badge{margin-bottom:18px}
.hero-title{font-size:clamp(28px,4.6vw,44px);font-weight:900;letter-spacing:-.01em;line-height:1.2;color:var(--text);margin:0 0 16px}
.hero-sub{font-size:18px;font-weight:700;color:var(--brand);margin:0 0 12px;line-height:1.7}
.hero-text{font-size:15.5px;color:var(--muted);max-width:600px;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:32px;padding-top:26px;border-top:1px dashed var(--light-line)}
.hero-stat-num{font-size:21px;font-weight:900;color:var(--brand);letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.hero-stat-label{font-size:13px;color:var(--muted);margin-top:2px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;border:1px solid var(--light-line);box-shadow:0 26px 56px rgba(109,59,255,.2)}
.hero-visual::after{content:"";position:absolute;inset:-14px -14px auto auto;width:120px;height:120px;border-radius:26px;background:linear-gradient(140deg,var(--lime),rgba(200,255,61,0));opacity:.5;filter:blur(18px);z-index:-1}

/* ---------- 面包屑 ---------- */
.breadcrumbs{padding:18px 0;font-size:13.5px;color:var(--muted)}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--brand)}
.crumb-sep{margin:0 8px;color:#B9B7C9}
.crumb-current{color:var(--text);font-weight:700}

/* ---------- 板块 ---------- */
.section{padding:76px 0}
.section-alt{background:var(--light-bg)}
.section-dark{background:var(--deep);color:#fff}
.section-head{margin-bottom:32px}
.section-title{font-size:clamp(23px,3vw,28px);font-weight:900;letter-spacing:-.01em;margin:0 0 10px}
.section-desc{font-size:15.5px;color:var(--muted);max-width:760px;margin:0}
.section-dark .section-desc{color:var(--on-deep-muted)}
.section-dark .section-title{color:#fff}

/* ---------- 更新速览卡 ---------- */
.stat-card{position:relative;background:var(--light-card);border:1px solid var(--light-line);border-radius:var(--radius-card);padding:26px 22px 24px;height:100%;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(109,59,255,.5);box-shadow:var(--shadow-card)}
.stat-num{display:inline-block;font-size:12.5px;font-weight:900;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:2px 10px;font-variant-numeric:tabular-nums}
.stat-title{font-size:17px;font-weight:800;margin:14px 0 8px}
.stat-text{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0}
.stat-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,rgba(109,59,255,.16),rgba(200,255,61,.2));display:inline-flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:14px}
.stat-icon svg{width:20px;height:20px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--light-card);border:1px solid var(--light-line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:rgba(109,59,255,.35)}
.faq-item.is-open{border-color:rgba(109,59,255,.55);box-shadow:var(--shadow-card)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:17px 20px;min-height:56px;text-align:left;font-weight:800;font-size:16.5px;line-height:1.55;color:var(--text);transition:background-color .2s ease}
.faq-q:hover{background:rgba(109,59,255,.045)}
.faq-index{flex:0 0 auto;font-size:13px;font-weight:900;color:var(--brand);font-variant-numeric:tabular-nums}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;margin-left:auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{padding:0 22px 20px 56px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-a p{margin:0}
.faq-note{margin-top:26px;font-size:14px;color:var(--muted);text-align:center}
.faq-note a{color:var(--brand);font-weight:700}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{position:relative;background:var(--light-card);border:1px solid var(--light-line);border-radius:14px;padding:24px 22px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-card)}
.step.is-current{border-color:rgba(109,59,255,.55);background:linear-gradient(160deg,rgba(200,255,61,.16),rgba(255,255,255,1) 62%)}
.step-no{font-size:12.5px;font-weight:900;letter-spacing:.1em;color:var(--brand);font-variant-numeric:tabular-nums}
.step.is-current .step-no{color:#4C7C00}
.step-title{font-size:17px;font-weight:800;margin:12px 0 8px}
.step-text{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0}

/* ---------- 频道卡（深色） ---------- */
.channel-card{display:block;height:100%;background:var(--deep-2);border:1px solid var(--deep-line);border-radius:var(--radius-card);padding:22px 20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.channel-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 18px 40px rgba(109,59,255,.3);color:#fff}
.channel-name{font-size:17px;font-weight:800;color:#fff;margin:0 0 8px}
.channel-desc{font-size:14px;color:var(--on-deep-muted);line-height:1.75;margin:0 0 14px}
.channel-more{font-size:13.5px;font-weight:800;color:var(--lime);display:inline-flex;align-items:center;gap:6px}
.channel-more span{transition:transform .2s ease;display:inline-block}
.channel-card:hover .channel-more span{transform:translateX(3px)}
.channel-card.is-current{border-color:rgba(200,255,61,.6)}
.channel-flag{font-size:12px;font-weight:800;color:#0C0B12;background:var(--lime);border-radius:999px;padding:2px 10px;display:inline-block;margin-bottom:12px}

/* ---------- CTA ---------- */
.cta-band{position:relative;padding:78px 0;color:#fff;background:linear-gradient(115deg,rgba(12,11,18,.94),rgba(22,21,31,.82)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-title{font-size:clamp(23px,3.2vw,30px);font-weight:900;letter-spacing:-.01em;color:#fff;margin:0 0 10px}
.cta-text{font-size:15.5px;color:var(--on-deep-muted);max-width:560px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 底部固定条 ---------- */
.sticky-cta{position:fixed;left:50%;bottom:20px;transform:translateX(-50%) translateY(14px);z-index:45;display:flex;align-items:center;gap:14px;background:rgba(12,11,18,.95);border:1px solid var(--deep-line);border-radius:999px;padding:9px 10px 9px 22px;box-shadow:0 18px 44px rgba(0,0,0,.42);opacity:0;transition:opacity .3s ease,transform .3s ease;backdrop-filter:blur(10px)}
.sticky-cta.is-visible{opacity:1;transform:translateX(-50%) translateY(0)}
.sticky-cta-text{font-size:14px;color:#E6E3F2;font-weight:700;white-space:nowrap}
.sticky-cta-close{width:28px;height:28px;border-radius:999px;border:1px solid var(--deep-line);color:#B9B5CC;font-size:16px;line-height:1;display:inline-flex;align-items:center;justify-content:center}
.sticky-cta-close:hover{color:#fff;border-color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#C6C2D8;padding:64px 0 0;border-top:1px solid var(--deep-line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--on-deep-muted);line-height:1.85;margin:0;max-width:360px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--on-deep-muted);line-height:1.7}
.footer-col a{color:var(--on-deep-muted);font-size:14px}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid var(--deep-line);padding:20px 0 90px;font-size:13px;color:#8E8AA8}
.footer-bottom a{color:#8E8AA8}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-bar{display:none}
  .nav-toggle{display:inline-flex}
  .hot-links{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .search-box{display:none}
  .brand-text{font-size:15.5px}
  .section{padding:58px 0}
  .hero{padding:40px 0 52px}
  .hero-text{font-size:15px}
  .hero-stats{gap:22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band{padding:58px 0}
  .faq-q{font-size:15.5px;padding:15px 16px;gap:10px}
  .faq-a{padding:0 18px 18px 40px;font-size:14.5px}
  .sticky-cta{left:0;right:0;bottom:0;width:100%;transform:translateY(100%);border-radius:16px 16px 0 0;padding:12px 14px;justify-content:space-between}
  .sticky-cta.is-visible{transform:translateY(0)}
  .sticky-cta-text{font-size:13.5px}
  .footer-bottom{padding-bottom:100px}
}
@media (max-width:520px){
  .hero-title{font-size:26px}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:14.5px;letter-spacing:0}
}

/* roulang page: category4 */
:root{
    --violet:#6D3BFF;
    --violet-soft:rgba(109,59,255,.12);
    --violet-line:rgba(109,59,255,.32);
    --lime:#C8FF3D;
    --coral:#FF6A3D;
    --ink:#0C0B12;
    --ink-card:#16151F;
    --ink-line:#262538;
    --bg:#F6F6FB;
    --card:#FFFFFF;
    --line:#E8E8F2;
    --text:#1A1A24;
    --muted:#5C5C70;
    --text-dark:#F3F2F8;
    --muted-dark:#A9A7BF;
    --r-card:16px;
    --r-btn:12px;
    --r-pill:999px;
    --shadow:0 12px 32px rgba(109,59,255,.18);
    --shadow-hover:0 18px 44px rgba(109,59,255,.26);
    --container:1200px;
    --gap:24px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
  img{max-width:100%;display:block;border-radius:12px}
  button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
  input{font:inherit}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--lime);
    outline-offset:2px;
    border-radius:6px;
  }
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  .num{font-variant-numeric:tabular-nums}

  /* ============ Header ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(12,11,18,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--ink-line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 10px 28px rgba(0,0,0,.42)}
  .header-top{
    display:flex;
    align-items:center;
    gap:16px;
    height:72px;
    transition:height .22s ease;
  }
  .site-header.is-scrolled .header-top{height:56px}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:36px;height:36px;border-radius:11px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--violet),#8E5BFF);
    box-shadow:0 8px 20px rgba(109,59,255,.42);
    flex-shrink:0;
  }
  .brand-mark svg{width:20px;height:20px}
  .brand-text{
    color:#fff;
    font-weight:800;
    font-size:17px;
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .header-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:12px;
  }
  .search-form{
    position:relative;
    display:flex;
    align-items:center;
  }
  .search-form input{
    width:230px;
    height:40px;
    border-radius:var(--r-pill);
    border:1px solid var(--ink-line);
    background:#1A1925;
    color:#fff;
    padding:0 84px 0 16px;
    font-size:14px;
    outline:none;
    transition:border-color .18s ease,box-shadow .18s ease,width .22s ease;
  }
  .search-form input::placeholder{color:#7C7A92}
  .search-form input:focus{
    border-color:var(--violet);
    box-shadow:0 0 0 3px rgba(109,59,255,.28);
  }
  .search-form button{
    position:absolute;
    right:4px;
    height:32px;
    padding:0 14px;
    border-radius:var(--r-pill);
    background:var(--lime);
    color:#101018;
    font-size:13px;
    font-weight:700;
    transition:transform .18s ease,filter .18s ease;
  }
  .search-form button:hover{filter:brightness(1.06);transform:translateY(-1px)}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-weight:700;
    font-size:15px;
    white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--lime);color:#101018;box-shadow:0 8px 22px rgba(200,255,61,.22)}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 30px rgba(200,255,61,.3)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{
    background:transparent;
    color:#fff;
    border:1px solid var(--violet-line);
  }
  .btn-ghost:hover{background:rgba(109,59,255,.16);border-color:var(--violet);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .nav-toggle{
    display:none;
    width:42px;height:42px;
    border-radius:11px;
    border:1px solid var(--ink-line);
    color:#fff;
    place-items:center;
  }
  .header-channels{
    border-top:1px solid rgba(38,37,56,.9);
  }
  .main-nav{
    display:flex;
    align-items:center;
    gap:6px;
    overflow-x:auto;
    scrollbar-width:none;
    height:52px;
  }
  .main-nav::-webkit-scrollbar{display:none}
  .nav-link{
    position:relative;
    padding:6px 14px;
    color:#B6B4C8;
    font-size:15px;
    font-weight:600;
    white-space:nowrap;
    border-radius:var(--r-pill);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:0;
    height:2px;
    background:var(--lime);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .18s ease;
    border-radius:2px;
  }
  .nav-link:hover{color:#fff}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{transform:scaleX(1)}

  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(6,5,10,.6);
    opacity:0;visibility:hidden;
    transition:opacity .22s ease,visibility .22s ease;
    z-index:60;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}
  .mobile-drawer{
    position:fixed;
    top:0;right:0;
    width:80%;
    max-width:340px;
    height:100%;
    background:var(--ink-card);
    border-left:1px solid var(--ink-line);
    transform:translateX(102%);
    transition:transform .26s ease;
    z-index:61;
    padding:24px 20px;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
  .drawer-head span{color:#fff;font-weight:800;font-size:16px}
  .drawer-close{
    width:38px;height:38px;border-radius:10px;
    border:1px solid var(--ink-line);color:#fff;
    display:grid;place-items:center;
  }
  .drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
  .drawer-nav a{
    padding:12px 14px;border-radius:12px;color:#CFCDE0;font-weight:600;
    border:1px solid transparent;
  }
  .drawer-nav a:hover{background:rgba(109,59,255,.14);color:#fff}
  .drawer-nav a.is-active{border-color:var(--violet-line);color:#fff;background:rgba(109,59,255,.14)}
  .drawer-search{display:flex;flex-direction:column;gap:10px}
  .drawer-search input{
    height:44px;border-radius:12px;border:1px solid var(--ink-line);
    background:#1A1925;color:#fff;padding:0 14px;outline:none;
  }
  .drawer-search input:focus{border-color:var(--violet);box-shadow:0 0 0 3px rgba(109,59,255,.28)}

  /* ============ Breadcrumb ============ */
  .breadcrumb{
    background:var(--card);
    border-bottom:1px solid var(--line);
  }
  .breadcrumb ol{
    display:flex;align-items:center;gap:8px;
    height:52px;font-size:13.5px;color:var(--muted);
    overflow:hidden;white-space:nowrap;
  }
  .breadcrumb a{color:var(--muted)}
  .breadcrumb a:hover{color:var(--violet)}
  .breadcrumb .sep{color:#B9B8C8}
  .breadcrumb .current{color:var(--text);font-weight:700}

  /* ============ Hero (dark) ============ */
  .cat-hero{
    position:relative;
    background:
      radial-gradient(900px 420px at 82% 12%, rgba(109,59,255,.42), transparent 62%),
      linear-gradient(180deg, rgba(12,11,18,.94), rgba(12,11,18,.98)),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    color:var(--text-dark);
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
    background-size:44px 44px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
    pointer-events:none;
  }
  .cat-hero .container{position:relative;z-index:2}
  .hero-grid{
    display:grid;
    grid-template-columns:1.08fr .92fr;
    gap:56px;
    align-items:center;
    padding:78px 0 84px;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;
    border-radius:var(--r-pill);
    background:rgba(200,255,61,.14);
    color:var(--lime);
    font-size:12.5px;
    font-weight:700;
    letter-spacing:.04em;
    margin-bottom:20px;
  }
  .cat-hero h1{
    font-size:clamp(28px,4.6vw,44px);
    font-weight:900;
    color:#fff;
    margin-bottom:18px;
  }
  .cat-hero h1 em{font-style:normal;color:var(--lime)}
  .hero-sub{
    font-size:17px;
    color:var(--muted-dark);
    max-width:560px;
    margin-bottom:30px;
  }
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
  .hero-stats{
    display:flex;flex-wrap:wrap;gap:34px;
    padding-top:24px;
    border-top:1px solid var(--ink-line);
  }
  .hero-stats .stat b{
    display:block;
    font-size:26px;
    font-weight:900;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .hero-stats .stat span{font-size:13px;color:var(--muted-dark)}
  .hero-visual{position:relative}
  .hero-visual .glow{
    position:absolute;inset:-16% -10% -14% -12%;
    background:radial-gradient(circle at 55% 45%, rgba(109,59,255,.55), transparent 66%);
    filter:blur(6px);
    z-index:0;
  }
  .hero-visual img{
    position:relative;z-index:1;
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:20px;
    border:1px solid rgba(109,59,255,.4);
    box-shadow:0 26px 60px rgba(0,0,0,.5);
  }
  .hero-visual .float-tag{
    position:absolute;
    z-index:2;
    left:-14px;bottom:22px;
    background:rgba(22,21,31,.94);
    border:1px solid var(--ink-line);
    border-radius:14px;
    padding:12px 16px;
    box-shadow:0 16px 36px rgba(0,0,0,.5);
  }
  .hero-visual .float-tag strong{display:block;color:#fff;font-size:14px;font-weight:800}
  .hero-visual .float-tag small{color:var(--muted-dark);font-size:12px}

  /* ============ Sections ============ */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-dark{background:var(--ink);color:var(--text-dark)}
  .section-head{margin-bottom:44px;max-width:720px}
  .section-head .kicker{
    display:inline-block;
    font-size:12.5px;
    font-weight:800;
    letter-spacing:.14em;
    color:var(--violet);
    margin-bottom:12px;
    text-transform:uppercase;
  }
  .section-dark .section-head .kicker{color:var(--lime)}
  .section-head h2{font-size:clamp(24px,3vw,28px);color:var(--text)}
  .section-dark .section-head h2{color:#fff}
  .section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
  .section-dark .section-head p{color:var(--muted-dark)}

  /* ============ Compare table ============ */
  .table-shell{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow);
    overflow:hidden;
  }
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.compare{
    width:100%;
    min-width:760px;
    border-collapse:collapse;
    font-size:15px;
  }
  table.compare thead th{
    text-align:left;
    padding:18px 22px;
    background:#F1F0F9;
    color:var(--text);
    font-size:13.5px;
    font-weight:800;
    letter-spacing:.02em;
    border-bottom:1px solid var(--line);
  }
  table.compare thead th:nth-child(2){color:var(--violet);background:rgba(109,59,255,.09)}
  table.compare tbody td{
    padding:18px 22px;
    border-bottom:1px solid var(--line);
    color:var(--muted);
    vertical-align:top;
  }
  table.compare tbody td:first-child{color:var(--text);font-weight:700;width:22%}
  table.compare tbody td:nth-child(2){background:rgba(109,59,255,.045);color:var(--text)}
  table.compare tbody tr:last-child td{border-bottom:none}
  .table-hint{
    display:flex;align-items:center;gap:8px;
    margin-top:14px;font-size:13px;color:var(--muted);
  }
  .table-hint::before{
    content:"";
    width:22px;height:2px;border-radius:2px;background:var(--coral);
    flex-shrink:0;
  }

  /* ============ Cards mixed grid ============ */
  .mix-grid{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    gap:var(--gap);
  }
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:26px;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    display:flex;
    flex-direction:column;
    gap:12px;
  }
  .card:hover{transform:translateY(-4px);border-color:var(--violet-line);box-shadow:var(--shadow-hover)}
  .card h3{font-size:17px;color:var(--text)}
  .card p{color:var(--muted);font-size:14.5px;line-height:1.75}
  .span-6{grid-column:span 6}
  .span-4{grid-column:span 4}
  .span-3{grid-column:span 3}
  .card-wide{
    padding:0;
    overflow:hidden;
    flex-direction:row;
    align-items:stretch;
  }
  .card-wide .thumb{
    width:44%;
    flex-shrink:0;
    overflow:hidden;
    border-radius:0;
  }
  .card-wide .thumb img{
    width:100%;height:100%;
    object-fit:cover;
    border-radius:0;
    transition:transform .35s ease;
  }
  .card-wide:hover .thumb img{transform:scale(1.04)}
  .card-wide .body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;
    border-radius:var(--r-pill);
    font-size:12px;
    font-weight:700;
    line-height:1.6;
    align-self:flex-start;
  }
  .badge-violet{background:var(--violet-soft);color:var(--violet)}
  .badge-coral{background:rgba(255,106,61,.14);color:var(--coral)}
  .badge-lime{background:var(--lime);color:#101018}
  .icon-box{
    width:40px;height:40px;
    border-radius:12px;
    display:grid;place-items:center;
    background:var(--violet-soft);
    color:var(--violet);
    flex-shrink:0;
  }
  .icon-box svg{width:20px;height:20px}
  .card-darkmode{
    background:linear-gradient(160deg,#1B1A27,#141320);
    border-color:var(--ink-line);
  }
  .card-darkmode h3{color:#fff}
  .card-darkmode p{color:var(--muted-dark)}
  .card-darkmode .icon-box{background:rgba(200,255,61,.14);color:var(--lime)}

  /* ============ Steps ============ */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:var(--gap);
    counter-reset:step;
  }
  .step{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:28px 24px 26px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .step:hover{transform:translateY(-4px);border-color:var(--violet-line);box-shadow:var(--shadow)}
  .step .idx{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;
    border-radius:11px;
    background:var(--violet);
    color:#fff;
    font-weight:900;
    font-size:15px;
    font-variant-numeric:tabular-nums;
    margin-bottom:16px;
    box-shadow:0 10px 22px rgba(109,59,255,.32);
  }
  .step.is-current .idx{background:var(--lime);color:#101018;box-shadow:0 10px 22px rgba(200,255,61,.32)}
  .step h3{font-size:17px;margin-bottom:10px}
  .step p{font-size:14.5px;color:var(--muted)}
  .step .line{
    position:absolute;top:47px;right:-24px;
    width:24px;height:2px;background:var(--line);
  }
  .step:last-child .line{display:none}

  /* ============ Split content ============ */
  .split{
    display:grid;
    grid-template-columns:1.02fr .98fr;
    gap:56px;
    align-items:center;
  }
  .check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
  .check-list li{
    display:flex;gap:12px;
    align-items:flex-start;
    font-size:15px;
    color:var(--muted);
  }
  .check-list li b{color:var(--text);font-weight:700}
  .check-list .dot{
    width:22px;height:22px;flex-shrink:0;
    border-radius:7px;
    background:var(--violet-soft);
    color:var(--violet);
    display:grid;place-items:center;
    font-size:12px;font-weight:900;
    margin-top:4px;
  }
  .split-visual img{
    width:100%;
    aspect-ratio:16/11;
    object-fit:cover;
    border-radius:20px;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .mini-stats{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:16px;
    margin-top:22px;
  }
  .mini-stats div{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:14px;
    padding:16px;
  }
  .mini-stats b{
    display:block;font-size:20px;font-weight:900;color:var(--violet);
    font-variant-numeric:tabular-nums;
  }
  .mini-stats span{font-size:12.5px;color:var(--muted)}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:880px;margin:0 auto}
  .faq-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:14px;
    margin-bottom:14px;
    overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:var(--violet-line);box-shadow:0 10px 26px rgba(109,59,255,.1)}
  .faq-item[open]{border-color:var(--violet-line);box-shadow:var(--shadow)}
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:56px;
    padding:18px 22px;
    font-size:16px;
    font-weight:700;
    color:var(--text);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:rgba(109,59,255,.04)}
  .faq-item .plus{
    width:26px;height:26px;
    flex-shrink:0;
    border-radius:8px;
    background:var(--violet-soft);
    color:var(--violet);
    display:grid;place-items:center;
    font-size:16px;font-weight:900;
    transition:transform .2s ease;
    line-height:1;
  }
  .faq-item[open] .plus{transform:rotate(45deg)}
  .faq-item .answer{
    padding:0 22px 22px;
    color:var(--muted);
    font-size:15px;
    border-top:1px solid var(--line);
    padding-top:18px;
  }

  /* ============ CTA ============ */
  .cta-band{
    position:relative;
    background:
      radial-gradient(700px 320px at 20% 20%, rgba(109,59,255,.5), transparent 65%),
      linear-gradient(120deg,#141320,#0C0B12);
    border:1px solid var(--violet-line);
    border-radius:24px;
    padding:56px;
    color:#fff;
    display:grid;
    grid-template-columns:1.4fr auto;
    gap:32px;
    align-items:center;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;top:-60px;
    width:260px;height:260px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(200,255,61,.24),transparent 68%);
  }
  .cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:12px}
  .cta-band p{color:var(--muted-dark);font-size:15.5px;max-width:560px}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

  /* ============ Footer ============ */
  .site-footer{
    background:#0A0910;
    color:var(--muted-dark);
    border-top:1px solid var(--ink-line);
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:40px;
    padding:68px 20px 48px;
  }
  .footer-brand .brand{margin-bottom:18px}
  .footer-brand p{font-size:14.5px;line-height:1.8;max-width:340px}
  .footer-col h4{
    color:#fff;
    font-size:15px;
    margin-bottom:18px;
    font-weight:800;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:12px}
  .footer-col li{font-size:14.5px}
  .footer-col a{color:var(--muted-dark)}
  .footer-col a:hover{color:var(--lime)}
  .footer-bottom{
    border-top:1px solid var(--ink-line);
    padding:22px 0;
    font-size:13.5px;
    color:#7F7D93;
  }
  .footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

  /* ============ Responsive ============ */
  @media (max-width:1280px){
    .search-form input{width:190px}
  }
  @media (max-width:1024px){
    .section{padding:76px 0}
    .section-tight{padding:60px 0}
    .hero-grid{grid-template-columns:1fr;gap:40px;padding:60px 0 68px}
    .hero-visual{max-width:560px}
    .steps{grid-template-columns:repeat(2,1fr)}
    .step .line{display:none}
    .split{grid-template-columns:1fr;gap:36px}
    .span-6,.span-4,.span-3{grid-column:span 6}
    .card-wide{flex-direction:column}
    .card-wide .thumb{width:100%;height:200px}
    .search-form{display:none}
    .nav-toggle{display:grid}
    .header-channels{display:none}
    .cta-band{grid-template-columns:1fr;padding:44px 32px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 20px 40px}
  }
  @media (max-width:768px){
    .brand-text{font-size:15px;white-space:normal;line-height:1.3;max-width:180px}
    .header-top{height:auto;padding:12px 0;gap:12px}
    .site-header.is-scrolled .header-top{height:auto}
    .hero-stats{gap:24px}
    .hero-visual .float-tag{left:8px;bottom:12px}
    .mix-grid{grid-template-columns:repeat(6,1fr)}
    .span-6,.span-4,.span-3{grid-column:span 6}
    .steps{grid-template-columns:1fr}
    .mini-stats{grid-template-columns:1fr}
    .section{padding:60px 0}
    .section-tight{padding:52px 0}
    .card{padding:22px}
    .cta-band{padding:34px 22px;border-radius:20px}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    .cat-hero h1{font-size:26px}
    .hero-sub{font-size:15.5px}
    .hero-cta .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom .container{flex-direction:column;gap:8px}
    .breadcrumb ol{font-size:13px}
  }