/* roulang page: index */
:root{
      --blue-900:#172b46;
      --blue-800:#203b5d;
      --blue-700:#2d547f;
      --blue-600:#3b6d9b;
      --blue-100:#eaf2f8;
      --blue-50:#f5f9fc;
      --cyan:#4f9eb8;
      --gold:#d5a75d;
      --orange:#e5a35f;
      --text:#172333;
      --muted:#64758a;
      --weak:#8a98a8;
      --bg:#f7fafc;
      --white:#ffffff;
      --line:#dbe5ee;
      --line-soft:#edf3f7;
      --shadow-sm:0 8px 22px rgba(32,59,93,.08);
      --shadow-md:0 18px 44px rgba(32,59,93,.12);
      --shadow-lg:0 28px 80px rgba(32,59,93,.16);
      --radius-sm:10px;
      --radius:16px;
      --radius-lg:24px;
      --radius-xl:32px;
      --space:8px;
      --nav-h:68px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 88% 7%, rgba(79,158,184,.16), transparent 34%),
        linear-gradient(180deg,#fbfdff 0%, var(--bg) 54%, #f3f7fb 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover,a:focus{color:var(--blue-700)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    input:focus,button:focus,a:focus{
      outline:3px solid rgba(79,158,184,.25);
      outline-offset:3px;
    }
    .site-wrap{min-height:100vh}
    .container-narrow{max-width:1180px;margin:0 auto;padding:0 22px}
    .section{padding:82px 0}
    .section.compact{padding:56px 0}
    .section-tint{background:linear-gradient(180deg,rgba(234,242,248,.55),rgba(255,255,255,.35));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(59,109,155,.18);
      background:rgba(234,242,248,.72);
      color:var(--blue-700);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 5px rgba(79,158,184,.12);
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(150%) blur(18px);
      background:rgba(251,253,255,.84);
      border-bottom:1px solid rgba(219,229,238,.82);
    }
    .nav-shell{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:11px;
      min-width:0;
      font-weight:900;
      color:var(--blue-900);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--blue-700),var(--cyan));
      color:#fff;
      box-shadow:0 12px 26px rgba(45,84,127,.22);
      font-size:15px;
      flex:0 0 auto;
    }
    .brand-text{
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:330px;
      font-size:16px;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:6px;
      margin:0;
      list-style:none;
      flex:1;
    }
    .nav-menu a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:8px 13px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .nav-menu a:hover{
      background:rgba(234,242,248,.82);
      color:var(--blue-800);
    }
    .nav-menu a.active{
      color:var(--blue-800);
      background:#fff;
      box-shadow:inset 0 0 0 1px var(--line), 0 8px 18px rgba(32,59,93,.06);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .search-mini{
      width:184px;
      height:38px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#fff;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      color:var(--weak);
      font-size:13px;
      box-shadow:0 5px 16px rgba(32,59,93,.04);
    }
    .search-mini input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      font-size:13px;
      box-shadow:none;
      margin:0;
      height:auto;
      padding:0;
    }
    .search-mini input:focus{outline:0;box-shadow:none}
    .menu-toggle{
      display:none;
      width:42px;height:42px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      color:var(--blue-800);
      box-shadow:var(--shadow-sm);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:14px;
      font-weight:800;
      line-height:1;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--blue-700),var(--cyan));
      box-shadow:0 16px 34px rgba(45,84,127,.22);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 42px rgba(45,84,127,.26);
    }
    .btn-secondary{
      color:var(--blue-800);
      background:#fff;
      border-color:var(--line);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{
      color:var(--blue-900);
      border-color:rgba(59,109,155,.36);
      transform:translateY(-2px);
      box-shadow:var(--shadow-md);
    }
    .btn-soft{
      min-height:36px;
      padding:9px 13px;
      color:var(--blue-700);
      background:var(--blue-50);
      border-color:var(--line);
      font-size:13px;
    }
    .hero{
      position:relative;
      padding:72px 0 42px;
      overflow:hidden;
    }
    .hero::after{
      content:"";
      position:absolute;
      right:-12%;
      top:12%;
      width:520px;
      height:520px;
      background:radial-gradient(circle,rgba(79,158,184,.18),transparent 70%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      align-items:center;
    }
    .hero-copy{padding:36px 0 28px}
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      margin:18px 0 18px;
      color:var(--blue-900);
      font-size:clamp(32px,5vw,54px);
      line-height:1.14;
      letter-spacing:-.045em;
      font-weight:900;
      max-width:680px;
    }
    h2{
      margin-bottom:14px;
      color:var(--blue-900);
      font-size:clamp(24px,3vw,32px);
      line-height:1.22;
      letter-spacing:-.025em;
      font-weight:900;
    }
    h3{
      color:var(--blue-900);
      font-size:20px;
      line-height:1.35;
      font-weight:850;
      margin-bottom:10px;
    }
    .lead{
      max-width:650px;
      color:#4d5f73;
      font-size:17px;
      line-height:1.85;
      margin-bottom:26px;
    }
    .hero-cta{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      margin-bottom:24px;
    }
    .quick-stats{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:0;
      margin:0;
      list-style:none;
    }
    .quick-stats li{
      display:flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.76);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
      box-shadow:0 8px 18px rgba(32,59,93,.05);
    }
    .quick-stats strong{color:var(--blue-800)}
    .hero-visual{
      position:relative;
      min-height:520px;
      display:grid;
      align-items:center;
    }
    .cover-stage{
      position:relative;
      min-height:500px;
    }
    .cover-card{
      position:absolute;
      right:46px;
      top:22px;
      width:min(390px,88vw);
      min-height:460px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:
        linear-gradient(145deg,rgba(255,255,255,.18),rgba(255,255,255,.02)),
        linear-gradient(135deg,#e9f2f9 0%,#ffffff 46%,#dceaf4 100%);
      border:1px solid rgba(219,229,238,.95);
      box-shadow:var(--shadow-lg);
    }
    .cover-card::before{
      content:"";
      position:absolute;
      inset:24px;
      border-radius:26px;
      background:
        linear-gradient(135deg,rgba(45,84,127,.12),transparent 42%),
        radial-gradient(circle at 72% 20%,rgba(79,158,184,.28),transparent 28%),
        radial-gradient(circle at 22% 78%,rgba(213,167,93,.22),transparent 26%);
      border:1px solid rgba(255,255,255,.72);
    }
    .cover-card::after{
      content:"";
      position:absolute;
      left:44px;
      right:44px;
      bottom:112px;
      height:132px;
      border-radius:24px;
      background:
        linear-gradient(90deg,rgba(255,255,255,.72),rgba(255,255,255,.24)),
        repeating-linear-gradient(0deg,rgba(45,84,127,.14) 0,rgba(45,84,127,.14) 1px,transparent 1px,transparent 14px);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.5);
    }
    .cover-meta{
      position:absolute;
      z-index:2;
      inset:auto 26px 26px 26px;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(219,229,238,.92);
      backdrop-filter:blur(14px);
      box-shadow:var(--shadow-sm);
    }
    .cover-meta .status{
      display:inline-flex;
      padding:6px 10px;
      margin-bottom:12px;
      border-radius:999px;
      color:var(--blue-800);
      background:var(--blue-100);
      font-size:12px;
      font-weight:800;
    }
    .cover-title{
      color:var(--blue-900);
      font-size:22px;
      font-weight:900;
      line-height:1.28;
      margin-bottom:8px;
    }
    .cover-desc{
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
      margin:0;
    }
    .float-card{
      position:absolute;
      z-index:4;
      border-radius:22px;
      background:rgba(255,255,255,.92);
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      backdrop-filter:blur(16px);
    }
    .count-card{
      left:0;
      top:82px;
      width:210px;
      padding:18px;
    }
    .count-label{
      color:var(--weak);
      font-size:12px;
      font-weight:800;
      margin-bottom:10px;
    }
    .count-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:8px;
    }
    .count-box{
      padding:10px 6px;
      text-align:center;
      border-radius:14px;
      background:var(--blue-50);
      border:1px solid var(--line-soft);
    }
    .count-box strong{
      display:block;
      color:var(--blue-800);
      font-size:22px;
      line-height:1;
      font-weight:900;
    }
    .count-box span{
      color:var(--weak);
      font-size:11px;
    }
    .entry-card{
      right:0;
      bottom:38px;
      width:245px;
      padding:18px;
    }
    .entry-card h3{font-size:17px;margin-bottom:7px}
    .entry-card p{font-size:13px;color:var(--muted);line-height:1.65;margin-bottom:13px}
    .trust-bar{
      padding:18px 0 30px;
    }
    .trust-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:16px 18px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-sm);
    }
    .trust-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag,.badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      background:var(--blue-50);
      color:var(--blue-700);
      border:1px solid rgba(219,229,238,.92);
      font-size:12px;
      font-weight:800;
      line-height:1;
    }
    .badge.hot{background:rgba(229,163,95,.12);color:#9b6831;border-color:rgba(229,163,95,.24)}
    .badge.live{background:rgba(79,158,184,.13);color:#2f7183;border-color:rgba(79,158,184,.22)}
    .badge.replay{background:rgba(59,109,155,.12);color:var(--blue-700);border-color:rgba(59,109,155,.22)}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-head p{
      max-width:620px;
      color:var(--muted);
      margin:0;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
    }
    .card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      overflow:hidden;
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(59,109,155,.28);
      box-shadow:var(--shadow-md);
    }
    .main-feature{
      padding:28px;
      min-height:360px;
      background:
        linear-gradient(135deg,rgba(234,242,248,.88),rgba(255,255,255,.92)),
        radial-gradient(circle at 90% 10%,rgba(79,158,184,.22),transparent 30%);
    }
    .main-feature .visual-strip{
      height:150px;
      margin:18px 0 22px;
      border-radius:22px;
      background:
        linear-gradient(135deg,rgba(23,43,70,.08),rgba(79,158,184,.16)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.64) 0,rgba(255,255,255,.64) 1px,transparent 1px,transparent 28px);
      border:1px solid rgba(255,255,255,.8);
      position:relative;
      overflow:hidden;
    }
    .main-feature .visual-strip::after{
      content:"";
      position:absolute;
      width:170px;height:170px;border-radius:50%;
      right:34px;top:-34px;
      background:rgba(213,167,93,.2);
      filter:blur(2px);
    }
    .main-feature p,.small-feature p,.timeline-card p,.preview-card p{color:var(--muted)}
    .small-stack{
      display:grid;
      gap:18px;
    }
    .small-feature{
      padding:22px;
      min-height:170px;
    }
    .meta-line{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin:12px 0 0;
      color:var(--weak);
      font-size:13px;
      font-weight:700;
    }
    .look-list{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .look-item{
      grid-column:span 4;
      padding:22px;
      min-height:210px;
    }
    .look-item.large{grid-column:span 8}
    .look-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:16px;
    }
    .num{
      color:rgba(45,84,127,.16);
      font-size:42px;
      font-weight:950;
      line-height:1;
      letter-spacing:-.06em;
    }
    .look-item p{color:var(--muted);margin-bottom:0}
    .preview-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .preview-card{
      position:relative;
      padding:22px;
      min-height:248px;
    }
    .preview-card.featured{
      grid-column:span 2;
      background:
        linear-gradient(135deg,#fff 0%,#edf5fa 100%);
    }
    .thumb{
      height:116px;
      border-radius:18px;
      margin-bottom:18px;
      background:
        linear-gradient(135deg,rgba(59,109,155,.15),rgba(79,158,184,.18)),
        linear-gradient(90deg,#f8fbfd,#e9f2f8);
      border:1px solid var(--line-soft);
      position:relative;
      overflow:hidden;
    }
    .thumb::before{
      content:"";
      position:absolute;
      inset:16px 22px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.72);
      background:rgba(255,255,255,.32);
    }
    .thumb::after{
      content:"";
      position:absolute;
      width:90px;height:90px;border-radius:50%;
      right:22px;top:14px;
      background:rgba(213,167,93,.18);
    }
    .timeline{
      position:relative;
      display:grid;
      gap:14px;
      padding-left:20px;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:6px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(var(--cyan),rgba(219,229,238,.6));
      border-radius:2px;
    }
    .timeline-card{
      position:relative;
      padding:20px 22px;
    }
    .timeline-card::before{
      content:"";
      position:absolute;
      left:-19px;
      top:26px;
      width:12px;height:12px;border-radius:50%;
      background:#fff;
      border:3px solid var(--cyan);
      box-shadow:0 0 0 5px rgba(79,158,184,.12);
    }
    .subscribe-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      padding:30px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,var(--blue-900),var(--blue-700));
      color:#fff;
      box-shadow:var(--shadow-lg);
      overflow:hidden;
      position:relative;
    }
    .subscribe-card::after{
      content:"";
      position:absolute;
      width:280px;height:280px;border-radius:50%;
      right:-90px;top:-90px;
      background:rgba(255,255,255,.12);
    }
    .subscribe-card h2{color:#fff;margin-bottom:8px}
    .subscribe-card p{color:rgba(255,255,255,.78);margin-bottom:0}
    .notify-form{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:10px;
      min-width:430px;
      padding:8px;
      border-radius:999px;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.22);
    }
    .notify-form input{
      flex:1;
      height:44px;
      margin:0;
      border:0;
      border-radius:999px;
      background:#fff;
      color:var(--text);
      padding:0 16px;
      box-shadow:none;
    }
    .notify-form input:focus{outline:0;box-shadow:0 0 0 3px rgba(255,255,255,.28)}
    .notify-form .btn{
      min-height:44px;
      background:var(--orange);
      color:#fff;
      box-shadow:none;
    }
    .notify-form .btn:hover{background:#d79048;color:#fff;transform:translateY(-1px)}
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag-cloud a{
      display:inline-flex;
      padding:10px 13px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--muted);
      font-size:13px;
      font-weight:750;
      box-shadow:0 6px 16px rgba(32,59,93,.04);
    }
    .tag-cloud a:hover{
      color:var(--blue-800);
      border-color:rgba(59,109,155,.32);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .replay-panel{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .replay-cover{
      min-height:330px;
      padding:26px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,255,255,.58),rgba(234,242,248,.9)),
        radial-gradient(circle at 25% 20%,rgba(79,158,184,.18),transparent 30%);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .replay-cover .thumb{height:178px;margin-top:20px}
    .replay-list{
      display:grid;
      gap:14px;
    }
    .replay-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 18px rgba(32,59,93,.05);
      transition:var(--ease);
    }
    .replay-row:hover{
      transform:translateX(4px);
      border-color:rgba(59,109,155,.3);
      box-shadow:var(--shadow-sm);
    }
    .replay-row h3{font-size:17px;margin:0 0 4px}
    .replay-row p{color:var(--muted);font-size:13px;margin:0}
    .faq-wrap{
      max-width:900px;
      margin:0 auto;
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--line);
      border-radius:18px;
      overflow:hidden;
      background:#fff;
      box-shadow:0 8px 20px rgba(32,59,93,.05);
    }
    .accordion-title{
      border:0;
      padding:18px 52px 18px 20px;
      color:var(--blue-900);
      font-size:16px;
      font-weight:850;
      background:#fff;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:var(--blue-50);
      color:var(--blue-800);
    }
    .accordion-title::before{
      right:20px;
      margin-top:-10px;
      color:var(--blue-700);
      font-size:20px;
    }
    .accordion-content{
      border:0;
      border-top:1px solid var(--line-soft);
      padding:18px 20px 20px;
      color:var(--muted);
      line-height:1.8;
      background:#fff;
    }
    .final-cta{
      padding:34px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,#ffffff 0%,#eff6fb 100%);
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:24px;
    }
    .final-cta p{color:var(--muted);margin:0}
    .site-footer{
      padding:56px 0 24px;
      background:#eef5f9;
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .85fr .85fr .95fr;
      gap:28px;
      margin-bottom:30px;
    }
    .footer-title{
      color:var(--blue-900);
      font-size:17px;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--blue-900);
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-grid p{
      color:var(--muted);
      font-size:14px;
      margin-bottom:0;
    }
    .footer-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a:hover{color:var(--blue-800)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:20px;
      border-top:1px solid rgba(219,229,238,.9);
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1023px){
      .nav-shell{gap:14px}
      .search-mini{display:none}
      .brand-text{max-width:260px}
      .hero{padding-top:48px}
      .hero-visual{min-height:470px}
      .cover-card{right:20px}
      .count-card{left:8px}
      .entry-card{right:8px}
      .feature-grid,.replay-panel{grid-template-columns:1fr}
      .look-item,.look-item.large{grid-column:span 6}
      .preview-grid{grid-template-columns:1fr 1fr}
      .preview-card.featured{grid-column:span 2}
      .subscribe-card,.final-cta{grid-template-columns:1fr}
      .notify-form{min-width:0;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:767px){
      :root{--nav-h:62px}
      .container-narrow{padding:0 16px}
      .section{padding:54px 0}
      .section.compact{padding:40px 0}
      .nav-shell{min-height:62px}
      .brand-mark{width:34px;height:34px;border-radius:12px;font-size:13px}
      .brand-text{max-width:180px;font-size:14px}
      .menu-toggle{display:grid;place-items:center}
      .nav-menu{
        position:absolute;
        left:16px;
        right:16px;
        top:72px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:rgba(255,255,255,.96);
        border:1px solid var(--line);
        box-shadow:var(--shadow-lg);
      }
      .site-header.menu-open .nav-menu{display:flex}
      .nav-menu a{justify-content:center}
      .nav-actions .btn{display:none}
      .hero-copy{padding:22px 0 8px}
      .lead{font-size:15px;line-height:1.78}
      .hero-cta .btn{width:100%}
      .quick-stats li{width:calc(50% - 5px);justify-content:center}
      .hero-visual{min-height:520px;margin-top:12px}
      .cover-stage{min-height:510px}
      .cover-card{
        width:100%;
        right:0;
        top:38px;
        min-height:410px;
        border-radius:26px;
      }
      .count-card{
        top:0;
        left:12px;
        width:192px;
      }
      .entry-card{
        right:12px;
        bottom:8px;
        width:220px;
      }
      .trust-inner{align-items:flex-start;flex-direction:column}
      .section-head{display:block}
      .section-head .btn{margin-top:16px}
      .look-list{grid-template-columns:1fr}
      .look-item,.look-item.large{grid-column:auto}
      .preview-grid{grid-template-columns:1fr}
      .preview-card.featured{grid-column:auto}
      .subscribe-card{padding:24px}
      .notify-form{
        flex-direction:column;
        border-radius:22px;
        align-items:stretch;
      }
      .notify-form .btn{width:100%}
      .replay-row{align-items:flex-start;flex-direction:column}
      .final-cta{padding:24px}
      .final-cta .hero-cta{margin-bottom:0}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      h1{font-size:30px}
      h2{font-size:24px}
      .quick-stats li{width:100%}
      .hero-visual{min-height:500px}
      .cover-card{min-height:390px}
      .cover-meta{inset:auto 18px 18px}
      .count-card{transform:scale(.92);transform-origin:left top}
      .entry-card{width:205px;padding:16px}
      .main-feature,.small-feature,.preview-card,.timeline-card{padding:20px}
    }

/* roulang page: category2 */
:root{
      --color-primary:#2f5f87;
      --color-primary-dark:#234968;
      --color-primary-soft:#e7f0f7;
      --color-accent:#d99b5f;
      --color-accent-soft:#fff3e7;
      --color-bg:#f6f9fc;
      --color-bg-strong:#edf4f9;
      --color-card:#ffffff;
      --color-text:#152b3d;
      --color-muted:#667789;
      --color-light:#91a1b0;
      --color-border:#dce6ee;
      --shadow-soft:0 14px 35px rgba(35,73,104,.09);
      --shadow-hover:0 20px 46px rgba(35,73,104,.14);
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --radius-xl:32px;
      --space-1:8px;
      --space-2:16px;
      --space-3:24px;
      --space-4:32px;
      --space-5:48px;
      --space-6:72px;
      --space-7:96px;
      --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-cn);
      color:var(--color-text);
      background:
        radial-gradient(circle at 86% 6%, rgba(47,95,135,.12), transparent 34%),
        linear-gradient(180deg,#fbfdff 0%,var(--color-bg) 52%,#ffffff 100%);
      line-height:1.72;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease}
    a:hover,a:focus{color:var(--color-primary)}
    img{max-width:100%;display:block}
    button,input{font-family:inherit}
    button{cursor:pointer}
    input:focus,button:focus,a:focus{outline:3px solid rgba(47,95,135,.18);outline-offset:3px}
    .container-narrow{
      width:min(1200px,calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:12px 0;
      background:rgba(247,250,253,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(220,230,238,.76);
    }
    .nav-shell{
      min-height:62px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:8px 10px 8px 14px;
      border:1px solid rgba(220,230,238,.88);
      border-radius:22px;
      background:rgba(255,255,255,.82);
      box-shadow:0 8px 24px rgba(35,73,104,.06);
    }
    .brand,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      font-weight:800;
      color:var(--color-text);
      letter-spacing:-.01em;
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:30px;
      border-radius:999px;
      color:#fff;
      font-size:13px;
      font-weight:800;
      background:linear-gradient(135deg,var(--color-primary),#5d89ab);
      box-shadow:0 8px 18px rgba(47,95,135,.18);
    }
    .brand-text{font-size:16px}
    .nav-menu{
      display:flex;
      align-items:center;
      justify-content:flex-start;
      gap:4px;
      margin:0;
      list-style:none;
      flex:1;
      padding-left:22px;
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      color:var(--color-muted);
      font-size:14px;
      font-weight:700;
      position:relative;
    }
    .nav-menu a:hover{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
    }
    .nav-menu a.active{
      color:var(--color-primary-dark);
      background:#eef6fb;
      box-shadow:inset 0 0 0 1px rgba(47,95,135,.12);
    }
    .nav-menu a.active:after{
      content:"";
      position:absolute;
      left:50%;
      bottom:5px;
      width:5px;
      height:5px;
      border-radius:50%;
      transform:translateX(-50%);
      background:var(--color-accent);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
    }
    .search-mini{
      height:40px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      border:1px solid var(--color-border);
      border-radius:999px;
      background:#fff;
      color:var(--color-light);
      font-size:13px;
      margin:0;
    }
    .search-mini span{
      width:22px;
      height:22px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-weight:800;
    }
    .search-mini input{
      width:136px;
      border:0;
      box-shadow:none;
      margin:0;
      padding:0;
      height:26px;
      color:var(--color-text);
      font-size:13px;
      background:transparent;
    }
    .search-mini input:focus{outline:none;box-shadow:none}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      font-size:14px;
      line-height:1;
      white-space:nowrap;
      transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),#4c7fa4);
      box-shadow:0 12px 24px rgba(47,95,135,.2);
    }
    .btn-primary:hover,.btn-primary:focus{
      color:#fff;
      box-shadow:0 18px 32px rgba(47,95,135,.27);
    }
    .btn-secondary{
      color:var(--color-primary-dark);
      background:#fff;
      border-color:var(--color-border);
      box-shadow:0 8px 20px rgba(35,73,104,.06);
    }
    .btn-secondary:hover{
      border-color:rgba(47,95,135,.32);
      background:#f8fbfe;
    }
    .btn-soft{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border-color:rgba(47,95,135,.12);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--color-border);
      border-radius:14px;
      background:#fff;
      color:var(--color-primary-dark);
      font-size:20px;
      line-height:1;
    }

    .page-hero{
      padding:56px 0 38px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      margin:0 0 18px;
      color:var(--color-muted);
      font-size:13px;
      font-weight:700;
    }
    .breadcrumb a{color:var(--color-primary)}
    .breadcrumb span{color:var(--color-light)}
    .hero-panel{
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(220,230,238,.9);
      background:
        linear-gradient(135deg,rgba(255,255,255,.94),rgba(239,247,252,.94)),
        radial-gradient(circle at 78% 22%, rgba(217,155,95,.18), transparent 25%);
      box-shadow:var(--shadow-soft);
    }
    .hero-copy{
      padding:54px 24px 54px 54px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--color-primary-dark);
      background:#fff;
      border:1px solid var(--color-border);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(217,155,95,.16);
    }
    h1{
      margin:0;
      font-size:48px;
      line-height:1.16;
      letter-spacing:-.04em;
      color:#10283a;
      max-width:760px;
    }
    .hero-subtitle{
      margin:18px 0 0;
      max-width:650px;
      color:var(--color-muted);
      font-size:16px;
      line-height:1.86;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:30px;
    }
    .hero-meta{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .meta-chip,.tag,.badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      line-height:1;
      white-space:nowrap;
    }
    .meta-chip{
      padding:9px 12px;
      color:var(--color-muted);
      background:rgba(255,255,255,.72);
      border:1px solid var(--color-border);
    }
    .hero-visual{
      position:relative;
      min-height:440px;
      height:100%;
      padding:28px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:
        linear-gradient(160deg,rgba(47,95,135,.09),rgba(255,255,255,.12)),
        radial-gradient(circle at 60% 14%, rgba(47,95,135,.18), transparent 28%);
    }
    .cover-stack{
      position:relative;
      width:min(430px,100%);
      min-height:348px;
    }
    .cover-card{
      position:absolute;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.72);
      box-shadow:0 24px 60px rgba(35,73,104,.18);
      overflow:hidden;
      background:#fff;
    }
    .cover-card.main{
      inset:28px 36px 0 0;
      padding:24px;
      background:
        linear-gradient(145deg,rgba(20,44,63,.86),rgba(47,95,135,.72)),
        linear-gradient(45deg,#eaf2f7,#fff);
      color:#fff;
      z-index:3;
    }
    .cover-card.back{
      width:62%;
      height:210px;
      right:0;
      top:0;
      background:linear-gradient(135deg,#ffffff,#e9f2f8);
      transform:rotate(5deg);
      z-index:1;
    }
    .cover-card.note{
      width:190px;
      right:10px;
      bottom:22px;
      z-index:4;
      padding:16px;
      background:#fff;
    }
    .cover-label{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.16);
      font-size:12px;
      font-weight:800;
      margin-bottom:90px;
    }
    .cover-title{
      font-size:26px;
      line-height:1.25;
      font-weight:900;
      letter-spacing:-.03em;
      margin-bottom:12px;
    }
    .cover-desc{
      color:rgba(255,255,255,.78);
      font-size:13px;
      line-height:1.7;
    }
    .note-time{
      color:var(--color-light);
      font-size:12px;
      font-weight:800;
      margin-bottom:6px;
    }
    .note-title{
      color:var(--color-text);
      font-size:16px;
      font-weight:900;
      line-height:1.35;
    }

    .section{
      padding:72px 0;
    }
    .section.tight{padding-top:32px}
    .section.soft{
      background:linear-gradient(180deg,rgba(237,244,249,.72),rgba(255,255,255,.86));
      border-top:1px solid rgba(220,230,238,.65);
      border-bottom:1px solid rgba(220,230,238,.65);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:var(--color-primary);
      font-size:13px;
      font-weight:900;
      margin-bottom:8px;
    }
    h2{
      margin:0;
      font-size:30px;
      line-height:1.24;
      letter-spacing:-.03em;
      color:#112b3e;
    }
    .section-desc{
      margin:10px 0 0;
      max-width:680px;
      color:var(--color-muted);
      font-size:15px;
    }
    .card{
      border:1px solid var(--color-border);
      border-radius:var(--radius-md);
      background:var(--color-card);
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(47,95,135,.28);
      box-shadow:var(--shadow-hover);
    }
    .feature-strip{
      display:grid;
      grid-template-columns:1.15fr .85fr .85fr;
      gap:16px;
    }
    .strip-item{
      padding:22px;
      min-height:128px;
    }
    .strip-item strong{
      display:block;
      margin-bottom:8px;
      color:#10283a;
      font-size:18px;
      line-height:1.35;
    }
    .strip-item p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }
    .badge{
      padding:7px 10px;
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border:1px solid rgba(47,95,135,.12);
    }
    .badge.orange{
      color:#8b5527;
      background:var(--color-accent-soft);
      border-color:rgba(217,155,95,.24);
    }

    .mosaic-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:20px;
      align-items:stretch;
    }
    .replay-large{
      min-height:420px;
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,255,255,.96)),
        radial-gradient(circle at 78% 22%, rgba(47,95,135,.18), transparent 32%);
    }
    .art-cover{
      min-height:210px;
      border-radius:22px;
      margin-bottom:22px;
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(47,95,135,.92),rgba(121,157,184,.7)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 1px,transparent 1px 22px);
      position:relative;
    }
    .art-cover:before,.art-cover:after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:rgba(255,255,255,.18);
    }
    .art-cover:before{
      width:180px;height:180px;right:36px;top:28px;
    }
    .art-cover:after{
      width:86px;height:86px;left:40px;bottom:34px;
      background:rgba(217,155,95,.32);
    }
    .replay-large h3{
      margin:0 0 10px;
      font-size:26px;
      line-height:1.25;
      letter-spacing:-.03em;
    }
    .replay-large p,.small-card p,.timeline-card p,.recommend-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.75;
    }
    .card-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      margin-top:22px;
    }
    .small-stack{
      display:grid;
      gap:20px;
    }
    .small-card{
      padding:22px;
      min-height:200px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .small-card h3{
      margin:14px 0 8px;
      font-size:20px;
      line-height:1.34;
    }
    .mini-art{
      height:92px;
      border-radius:18px;
      background:linear-gradient(135deg,#e6f0f7,#ffffff);
      border:1px solid rgba(220,230,238,.86);
      position:relative;
      overflow:hidden;
    }
    .mini-art:after{
      content:"";
      position:absolute;
      width:110px;
      height:110px;
      right:18px;
      top:-28px;
      border-radius:50%;
      background:rgba(47,95,135,.12);
    }

    .timeline-layout{
      display:grid;
      grid-template-columns:.36fr .64fr;
      gap:28px;
      align-items:start;
    }
    .timeline-side{
      position:sticky;
      top:112px;
      padding:28px;
      background:linear-gradient(180deg,#ffffff,#f4f9fc);
    }
    .timeline-side .number{
      display:block;
      margin:4px 0 10px;
      color:var(--color-primary-dark);
      font-size:46px;
      line-height:1;
      font-weight:900;
      letter-spacing:-.05em;
    }
    .timeline-list{
      position:relative;
      display:grid;
      gap:18px;
      padding-left:22px;
    }
    .timeline-list:before{
      content:"";
      position:absolute;
      left:8px;
      top:10px;
      bottom:10px;
      width:2px;
      background:linear-gradient(180deg,var(--color-primary-soft),rgba(47,95,135,.34),var(--color-primary-soft));
    }
    .timeline-card{
      position:relative;
      padding:22px;
    }
    .timeline-card:before{
      content:"";
      position:absolute;
      left:-21px;
      top:28px;
      width:12px;
      height:12px;
      border-radius:50%;
      background:#fff;
      border:3px solid var(--color-primary);
      box-shadow:0 0 0 5px var(--color-primary-soft);
    }
    .timeline-card h3{
      margin:10px 0 8px;
      font-size:20px;
      line-height:1.35;
    }
    .timeline-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:var(--color-light);
      font-size:13px;
      font-weight:800;
    }

    .entry-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .entry-card{
      padding:22px;
      min-height:190px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .entry-icon{
      width:46px;
      height:46px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:16px;
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      font-weight:900;
      font-size:18px;
    }
    .entry-card h3{
      margin:16px 0 8px;
      font-size:18px;
      line-height:1.34;
    }
    .entry-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }

    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      padding:10px 13px;
      color:var(--color-muted);
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:0 8px 18px rgba(35,73,104,.04);
    }
    .tag:hover{
      color:var(--color-primary-dark);
      border-color:rgba(47,95,135,.3);
      transform:translateY(-2px);
    }

    .recommend-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1.18fr;
      grid-auto-rows:minmax(186px,auto);
      gap:18px;
    }
    .recommend-card{
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .recommend-card.wide{
      grid-column:span 2;
      background:
        linear-gradient(135deg,#ffffff,#f1f7fb),
        radial-gradient(circle at 86% 20%,rgba(217,155,95,.14),transparent 30%);
    }
    .recommend-card.tall{
      grid-row:span 2;
      background:linear-gradient(180deg,#fff,#edf5fa);
    }
    .recommend-card h3{
      margin:12px 0 8px;
      font-size:20px;
      line-height:1.34;
    }
    .recommend-card.tall h3{font-size:24px}
    .recommend-card:after{
      content:"";
      position:absolute;
      right:-30px;
      bottom:-42px;
      width:145px;
      height:145px;
      border-radius:50%;
      background:rgba(47,95,135,.06);
      pointer-events:none;
    }

    .faq-wrap{
      max-width:900px;
      margin:0 auto;
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--color-border);
      border-radius:18px;
      background:#fff;
      box-shadow:0 10px 26px rgba(35,73,104,.05);
      overflow:hidden;
    }
    .accordion-title{
      border:0;
      padding:20px 54px 20px 22px;
      color:var(--color-text);
      font-size:16px;
      font-weight:900;
      line-height:1.4;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:#f7fbfe;
      color:var(--color-primary-dark);
    }
    .accordion-title:before{
      right:22px;
      margin-top:-10px;
      color:var(--color-primary);
      font-size:22px;
    }
    .accordion-content{
      border:0;
      padding:0 22px 22px;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.8;
    }

    .cta-panel{
      padding:34px;
      border-radius:28px;
      border:1px solid rgba(220,230,238,.86);
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(234,243,249,.92)),
        radial-gradient(circle at 92% 18%,rgba(217,155,95,.18),transparent 28%);
      box-shadow:var(--shadow-soft);
    }
    .cta-panel .grid-x{align-items:center}
    .subscribe-box{
      display:flex;
      gap:10px;
      padding:8px;
      border:1px solid var(--color-border);
      border-radius:999px;
      background:#fff;
      box-shadow:0 10px 22px rgba(35,73,104,.06);
    }
    .subscribe-box input{
      flex:1;
      min-width:0;
      height:44px;
      border:0;
      box-shadow:none;
      margin:0;
      padding:0 14px;
      color:var(--color-text);
      border-radius:999px;
      background:transparent;
    }
    .subscribe-box input:focus{box-shadow:none;outline:none}
    .form-note{
      margin:10px 8px 0;
      color:var(--color-light);
      font-size:12px;
    }

    .site-footer{
      padding:58px 0 28px;
      background:#eef5fa;
      border-top:1px solid rgba(220,230,238,.9);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr 1fr;
      gap:34px;
    }
    .footer-brand{
      margin-bottom:14px;
      font-size:16px;
    }
    .site-footer p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.8;
    }
    .footer-title{
      margin-bottom:12px;
      color:#10283a;
      font-size:14px;
      font-weight:900;
    }
    .footer-links{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--color-muted);
      font-size:14px;
    }
    .footer-links a:hover{
      color:var(--color-primary-dark);
      padding-left:3px;
    }
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(220,230,238,.9);
      color:var(--color-light);
      font-size:13px;
    }

    @media (max-width:1024px){
      .container-narrow{width:min(100% - 32px,920px)}
      h1{font-size:40px}
      .hero-copy{padding:42px 30px}
      .hero-visual{min-height:360px}
      .feature-strip{grid-template-columns:1fr 1fr}
      .feature-strip .strip-item:first-child{grid-column:span 2}
      .mosaic-grid,.timeline-layout{grid-template-columns:1fr}
      .timeline-side{position:relative;top:auto}
      .entry-grid{grid-template-columns:repeat(2,1fr)}
      .recommend-grid{grid-template-columns:1fr 1fr}
      .recommend-card.tall{grid-row:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
      .search-mini input{width:96px}
    }
    @media (max-width:768px){
      .site-header{padding:8px 0}
      .nav-shell{border-radius:18px;flex-wrap:wrap}
      .brand-text{font-size:14px}
      .nav-menu{
        order:3;
        width:100%;
        flex:none;
        display:none;
        padding:10px 0 4px;
        border-top:1px solid var(--color-border);
        overflow-x:auto;
      }
      .nav-menu.is-open{display:flex}
      .nav-menu a{min-height:36px;padding:0 12px}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .search-mini{display:none}
      .page-hero{padding:34px 0 24px}
      h1{font-size:34px}
      h2{font-size:25px}
      .hero-copy{padding:34px 24px}
      .hero-visual{padding:20px;min-height:320px}
      .cover-stack{min-height:300px}
      .cover-card.main{inset:24px 22px 0 0}
      .cover-card.note{right:0;width:170px}
      .section{padding:54px 0}
      .section-head{display:block}
      .section-head .btn{margin-top:16px}
      .mosaic-grid,.small-stack{gap:16px}
      .replay-large{min-height:auto}
      .recommend-grid{grid-template-columns:1fr}
      .recommend-card.wide{grid-column:auto}
      .cta-panel{padding:26px}
      .subscribe-box{border-radius:20px;flex-direction:column}
      .subscribe-box .btn{width:100%}
    }
    @media (max-width:520px){
      .container-narrow{width:min(100% - 24px,100%)}
      .brand-mark{width:38px;height:28px;font-size:12px}
      .nav-actions .btn-primary{display:none}
      h1{font-size:30px}
      .hero-subtitle{font-size:14px}
      .hero-actions .btn{width:100%}
      .hero-meta{gap:8px}
      .feature-strip,.entry-grid,.footer-grid{grid-template-columns:1fr}
      .feature-strip .strip-item:first-child{grid-column:auto}
      .cover-label{margin-bottom:64px}
      .cover-title{font-size:22px}
      .timeline-list{padding-left:18px}
      .timeline-card:before{left:-19px}
      .copyright{display:grid;gap:8px}
    }

/* roulang page: category1 */
:root{
      --color-primary:#355f86;
      --color-primary-2:#244965;
      --color-primary-soft:#e9f1f8;
      --color-accent:#d99a52;
      --color-accent-soft:#fff4e7;
      --color-bg:#f7faff;
      --color-surface:#ffffff;
      --color-surface-2:#f2f6fb;
      --color-text:#172b3d;
      --color-muted:#66798b;
      --color-light:#8a9aaa;
      --color-border:#dbe5ee;
      --shadow-sm:0 8px 24px rgba(35,73,101,.08);
      --shadow-md:0 18px 44px rgba(35,73,101,.12);
      --radius-lg:18px;
      --radius-md:14px;
      --radius-sm:10px;
      --space-section:76px;
      --nav-height:68px;
      --transition:220ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 85% 12%, rgba(217,154,82,.13), transparent 28%),
        linear-gradient(180deg,#f8fbff 0%,#f4f8fc 42%,#fff 100%);
      line-height:1.72;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
    a:hover,a:focus{color:var(--color-primary)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    input,button,a{outline:none}
    input:focus-visible,button:focus-visible,a:focus-visible{
      box-shadow:0 0 0 4px rgba(53,95,134,.16);
      border-color:var(--color-primary)!important;
    }
    .container-narrow{
      width:min(1180px,calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(248,251,255,.88);
      border-bottom:1px solid rgba(219,229,238,.8);
    }
    .nav-shell{
      min-height:var(--nav-height);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      color:var(--color-text);
      font-weight:800;
      letter-spacing:-.01em;
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:42px;
      height:28px;
      padding:0 10px;
      border-radius:999px;
      color:#fff;
      font-size:13px;
      font-weight:700;
      background:linear-gradient(135deg,var(--color-primary),#6f91ad);
      box-shadow:0 8px 18px rgba(53,95,134,.18);
    }
    .brand-text{font-size:16px;white-space:nowrap}
    .nav-menu{
      display:flex;
      align-items:center;
      gap:6px;
      list-style:none;
      padding:0;
      margin:0 auto 0 18px;
    }
    .nav-menu a{
      position:relative;
      display:inline-flex;
      align-items:center;
      height:38px;
      padding:0 13px;
      border-radius:999px;
      color:var(--color-muted);
      font-size:14px;
      font-weight:700;
    }
    .nav-menu a:hover{background:var(--color-primary-soft);color:var(--color-primary-2)}
    .nav-menu a.active{
      color:var(--color-primary-2);
      background:#fff;
      box-shadow:var(--shadow-sm);
      border:1px solid rgba(219,229,238,.78);
    }
    .nav-menu a.active::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:4px;
      width:5px;
      height:5px;
      border-radius:50%;
      transform:translateX(-50%);
      background:var(--color-accent);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .search-mini{
      width:194px;
      height:40px;
      display:flex;
      align-items:center;
      gap:8px;
      border:1px solid var(--color-border);
      background:#fff;
      border-radius:999px;
      padding:0 12px;
      color:var(--color-light);
      box-shadow:0 6px 18px rgba(23,43,61,.04);
    }
    .search-mini span{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:22px;
      height:22px;
      border-radius:50%;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-size:12px;
      font-weight:800;
    }
    .search-mini input{
      min-width:0;
      width:100%;
      border:0;
      box-shadow:none;
      margin:0;
      padding:0;
      height:36px;
      background:transparent;
      color:var(--color-text);
      font-size:13px;
    }
    .search-mini input::placeholder{color:#9aa8b5}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      font-weight:800;
      font-size:14px;
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
      line-height:1;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),#5f83a2);
      box-shadow:0 12px 28px rgba(53,95,134,.22);
    }
    .btn-primary:hover,.btn-primary:focus{color:#fff;box-shadow:0 16px 34px rgba(53,95,134,.28)}
    .btn-secondary{
      color:var(--color-primary-2);
      background:#fff;
      border-color:var(--color-border);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{background:var(--color-primary-soft);color:var(--color-primary-2)}
    .btn-soft{
      color:var(--color-primary);
      background:var(--color-primary-soft);
      border-color:#d5e4f1;
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:999px;
      border:1px solid var(--color-border);
      background:#fff;
      color:var(--color-primary-2);
      font-weight:900;
      cursor:pointer;
    }
    .page-hero{
      padding:54px 0 34px;
      border-bottom:1px solid rgba(219,229,238,.72);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin:0 0 22px;
      color:var(--color-muted);
      font-size:13px;
    }
    .breadcrumb a{font-weight:700;color:var(--color-primary)}
    .breadcrumb span{color:var(--color-light)}
    .hero-panel{
      border:1px solid var(--color-border);
      border-radius:26px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(241,247,252,.9)),
        radial-gradient(circle at 80% 18%,rgba(217,154,82,.16),transparent 24%);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .hero-copy{padding:42px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:16px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--color-primary-2);
      background:var(--color-primary-soft);
      font-size:13px;
      font-weight:800;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(217,154,82,.13);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:760px;
      margin-bottom:18px;
      font-size:clamp(30px,4.8vw,50px);
      line-height:1.16;
      letter-spacing:-.035em;
      color:#102638;
    }
    .hero-lead{
      max-width:760px;
      margin-bottom:26px;
      font-size:16px;
      color:var(--color-muted);
    }
    .filter-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:22px 0 0;
    }
    .filter-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:34px;
      padding:0 13px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--color-border);
      color:var(--color-muted);
      font-size:13px;
      font-weight:800;
      cursor:pointer;
    }
    .filter-chip:hover,.filter-chip.active{
      color:var(--color-primary-2);
      border-color:#bfd4e6;
      background:var(--color-primary-soft);
    }
    .sort-box{
      display:flex;
      justify-content:flex-end;
      align-items:flex-end;
      height:100%;
      padding:42px;
    }
    .sort-card{
      width:100%;
      max-width:320px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
      padding:20px;
    }
    .sort-title{
      margin-bottom:12px;
      font-size:14px;
      font-weight:900;
      color:var(--color-primary-2);
    }
    .sort-options{display:flex;gap:8px;flex-wrap:wrap}
    .sort-options a{
      display:inline-flex;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid var(--color-border);
      color:var(--color-muted);
      font-size:12px;
      font-weight:800;
      background:#fff;
    }
    .sort-options a.active,.sort-options a:hover{
      color:var(--color-primary);
      background:var(--color-primary-soft);
      border-color:#c9dceb;
    }
    main{overflow:hidden}
    .section{
      padding:var(--space-section) 0;
    }
    .section-muted{
      background:linear-gradient(180deg,rgba(242,246,251,.62),rgba(255,255,255,.9));
      border-top:1px solid rgba(219,229,238,.65);
      border-bottom:1px solid rgba(219,229,238,.65);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-title{
      margin-bottom:8px;
      color:#142b3e;
      font-size:clamp(24px,3vw,32px);
      line-height:1.25;
      letter-spacing:-.025em;
    }
    .section-desc{
      max-width:670px;
      margin:0;
      color:var(--color-muted);
      font-size:15px;
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .stream-list{
      display:flex;
      flex-direction:column;
      gap:16px;
    }
    .stream-card{
      display:grid;
      grid-template-columns:190px minmax(0,1fr);
      gap:18px;
      padding:14px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.92);
      box-shadow:var(--shadow-sm);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .stream-card:hover{
      transform:translateY(-5px);
      border-color:#bdd3e5;
      box-shadow:var(--shadow-md);
    }
    .thumb{
      position:relative;
      min-height:138px;
      overflow:hidden;
      border-radius:15px;
      background:
        linear-gradient(135deg,rgba(53,95,134,.86),rgba(141,166,188,.72)),
        radial-gradient(circle at 30% 20%,rgba(255,255,255,.42),transparent 24%);
    }
    .thumb::before{
      content:"";
      position:absolute;
      inset:16px 18px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.45);
      background:linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.04));
    }
    .thumb::after{
      content:attr(data-cover);
      position:absolute;
      left:18px;
      right:18px;
      bottom:16px;
      color:#fff;
      font-size:13px;
      font-weight:900;
      letter-spacing:.04em;
    }
    .stream-body{
      min-width:0;
      padding:4px 4px 2px 0;
      display:flex;
      flex-direction:column;
    }
    .meta-line{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:8px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:24px;
      padding:0 9px;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      border:1px solid #d1e2ef;
    }
    .badge.hot{background:var(--color-accent-soft);color:#9a6325;border-color:#f1d5b0}
    .badge.live{background:#e7f7f3;color:#23705f;border-color:#bee7dc}
    .time{
      color:var(--color-light);
      font-size:12px;
      font-weight:700;
    }
    .stream-card h2,.stream-card h3{
      margin-bottom:8px;
      font-size:20px;
      line-height:1.35;
      color:#142d42;
      letter-spacing:-.015em;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .stream-card p{
      margin-bottom:14px;
      color:var(--color-muted);
      font-size:14px;
      display:-webkit-box;
      -webkit-line-clamp:1;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .card-actions{
      margin-top:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .light-link{
      color:var(--color-primary);
      font-size:13px;
      font-weight:900;
    }
    .light-link:hover{color:var(--color-primary-2)}
    .side-rail{
      position:sticky;
      top:calc(var(--nav-height) + 18px);
      display:flex;
      flex-direction:column;
      gap:16px;
    }
    .side-card{
      padding:20px;
      border-radius:var(--radius-lg);
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .side-card h2,.side-card h3{
      margin-bottom:14px;
      font-size:18px;
      color:#142d42;
    }
    .rank-list,.update-list{
      list-style:none;
      padding:0;
      margin:0;
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .rank-list li{
      display:grid;
      grid-template-columns:28px 1fr auto;
      gap:10px;
      align-items:center;
      padding-bottom:12px;
      border-bottom:1px dashed var(--color-border);
      color:var(--color-muted);
      font-size:13px;
    }
    .rank-list li:last-child{border-bottom:0;padding-bottom:0}
    .rank-no{
      display:inline-flex;
      width:26px;
      height:26px;
      align-items:center;
      justify-content:center;
      border-radius:9px;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-weight:900;
    }
    .rank-name{font-weight:800;color:#22394d}
    .rank-heat{color:var(--color-light);font-size:12px}
    .update-list li{
      padding-left:14px;
      border-left:3px solid #d6e5f0;
      color:var(--color-muted);
      font-size:13px;
    }
    .update-list strong{display:block;color:#22394d;margin-bottom:2px}
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag-cloud a{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      background:var(--color-surface-2);
      color:var(--color-muted);
      font-size:12px;
      font-weight:800;
      border:1px solid transparent;
    }
    .tag-cloud a:hover{background:#fff;border-color:var(--color-border);color:var(--color-primary)}
    .subscribe-card{
      background:
        linear-gradient(135deg,#fff,rgba(233,241,248,.9)),
        radial-gradient(circle at 100% 0,rgba(217,154,82,.16),transparent 30%);
    }
    .subscribe-form{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-top:14px;
    }
    .subscribe-form input{
      height:44px;
      margin:0;
      padding:0 14px;
      border-radius:999px;
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:none;
      font-size:14px;
    }
    .subscribe-note{
      margin:10px 0 0;
      color:var(--color-light);
      font-size:12px;
      line-height:1.6;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
    }
    .feature-card{
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:transform var(--transition),box-shadow var(--transition);
    }
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .feature-card.large{
      min-height:258px;
      background:
        linear-gradient(135deg,#fff 0%,#f2f7fc 100%);
    }
    .feature-card h3{
      margin-bottom:10px;
      color:#142d42;
      font-size:21px;
    }
    .feature-card p{color:var(--color-muted);font-size:14px;margin-bottom:16px}
    .mini-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:20px;
    }
    .mini-stat{
      padding:16px;
      border-radius:15px;
      background:#fff;
      border:1px solid var(--color-border);
    }
    .mini-stat strong{
      display:block;
      font-size:24px;
      color:var(--color-primary-2);
      line-height:1.1;
    }
    .mini-stat span{font-size:12px;color:var(--color-muted);font-weight:800}
    .steps{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      counter-reset:step;
    }
    .step{
      position:relative;
      padding:24px 20px;
      border-radius:var(--radius-lg);
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:var(--shadow-sm);
      counter-increment:step;
    }
    .step::before{
      content:counter(step,decimal-leading-zero);
      display:inline-flex;
      margin-bottom:18px;
      color:var(--color-primary);
      font-weight:900;
      font-size:13px;
      letter-spacing:.08em;
    }
    .step h3{font-size:18px;margin-bottom:8px;color:#142d42}
    .step p{margin:0;color:var(--color-muted);font-size:14px}
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-md);
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .accordion-title{
      border:0!important;
      padding:18px 52px 18px 20px;
      color:#173149;
      font-size:16px;
      font-weight:900;
      line-height:1.45;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:var(--color-primary-soft);
      color:var(--color-primary-2);
    }
    .accordion-title::before{
      right:20px;
      margin-top:-11px;
      color:var(--color-primary);
      font-size:22px;
    }
    .accordion-content{
      border:0!important;
      padding:0 20px 20px;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.75;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      padding:36px;
      color:#fff;
      background:
        radial-gradient(circle at 88% 20%,rgba(255,255,255,.22),transparent 28%),
        linear-gradient(135deg,var(--color-primary-2),#4e7696);
      box-shadow:0 26px 60px rgba(36,73,101,.22);
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-110px;
      width:260px;
      height:260px;
      border-radius:50%;
      border:34px solid rgba(255,255,255,.12);
    }
    .cta-panel h2{
      position:relative;
      z-index:1;
      margin-bottom:10px;
      font-size:30px;
      color:#fff;
    }
    .cta-panel p{
      position:relative;
      z-index:1;
      max-width:710px;
      color:rgba(255,255,255,.82);
      margin-bottom:22px;
    }
    .cta-actions{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .cta-panel .btn-secondary{
      color:#173149;
      background:#fff;
      border-color:rgba(255,255,255,.45);
    }
    .site-footer{
      padding:54px 0 26px;
      background:#eef4fa;
      border-top:1px solid var(--color-border);
      color:var(--color-muted);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .8fr 1fr;
      gap:32px;
      margin-bottom:32px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:10px;
      margin-bottom:14px;
      color:#142d42;
      font-weight:900;
    }
    .footer-grid p{font-size:14px;margin:0;max-width:360px}
    .footer-title{
      margin-bottom:12px;
      color:#142d42;
      font-weight:900;
      font-size:14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .footer-links a{
      color:var(--color-muted);
      font-size:14px;
      font-weight:700;
    }
    .footer-links a:hover{color:var(--color-primary)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      border-top:1px solid #d6e2ec;
      color:#7b8c9b;
      font-size:13px;
    }
    @media (max-width:1024px){
      .search-mini{display:none}
      .content-layout{grid-template-columns:1fr}
      .side-rail{position:static;grid-template-columns:repeat(2,1fr);display:grid}
      .feature-grid,.steps{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:760px){
      :root{--space-section:52px}
      .container-narrow{width:min(100% - 28px,1180px)}
      .nav-shell{min-height:62px;gap:12px}
      .brand-text{font-size:14px;max-width:188px;overflow:hidden;text-overflow:ellipsis}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .nav-menu{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(100% + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        margin:0;
        padding:10px;
        border:1px solid var(--color-border);
        border-radius:18px;
        background:#fff;
        box-shadow:var(--shadow-md);
      }
      .nav-menu.is-open{display:flex}
      .nav-menu a{width:100%;justify-content:center}
      .nav-actions .btn-primary{display:none}
      .page-hero{padding:34px 0 24px}
      .hero-copy,.sort-box{padding:24px}
      .sort-box{justify-content:flex-start}
      .stream-card{grid-template-columns:1fr}
      .thumb{min-height:160px}
      .side-rail,.feature-grid,.steps,.mini-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
      .cta-panel{padding:28px 22px}
      .cta-panel h2{font-size:24px}
      .cta-actions .btn{width:100%}
    }
    @media (max-width:520px){
      .brand-mark{min-width:38px;height:26px;font-size:12px}
      h1{font-size:29px}
      .hero-lead{font-size:14px}
      .filter-row{gap:8px}
      .filter-chip{font-size:12px;padding:0 10px}
      .stream-card h2,.stream-card h3{font-size:18px}
      .card-actions{align-items:flex-start;flex-direction:column}
      .card-actions .btn{width:100%}
    }