/* roulang page: index */
:root{
      --bg:#08101c;
      --bg-soft:#0d1728;
      --panel:rgba(13,23,40,.74);
      --panel-strong:rgba(8,16,28,.92);
      --line:rgba(184,209,255,.14);
      --line-strong:rgba(184,209,255,.22);
      --text:#edf4ff;
      --muted:#a6b8d6;
      --muted-2:#8092b1;
      --primary:#27d7ff;
      --primary-2:#6b63ff;
      --accent:#ff9a4d;
      --accent-2:#ff6f91;
      --success:#49e2ac;
      --shadow:0 24px 60px rgba(0,0,0,.34);
      --shadow-soft:0 14px 34px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:14px;
      --radius-xs:12px;
      --max:1180px;
      --gap:24px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--text);
      line-height:1.65;
      background:
        linear-gradient(180deg,#09111d 0%,#0b1424 36%,#08101c 100%);
      min-height:100vh;
      padding-bottom:110px;
      overflow-x:hidden;
      letter-spacing:0;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px),
        linear-gradient(180deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.4) 55%,transparent 100%);
      opacity:.18;
      z-index:0;
    }
    body::after{
      content:"";
      position:fixed;
      inset:-10% -6% auto -6%;
      height:38vh;
      pointer-events:none;
      background:
        linear-gradient(135deg,rgba(39,215,255,.14),transparent 38%),
        linear-gradient(225deg,rgba(107,99,255,.12),transparent 45%),
        linear-gradient(315deg,rgba(255,154,77,.08),transparent 42%);
      filter:blur(2px);
      z-index:0;
    }
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    img{max-width:100%;display:block}
    .container{
      width:min(var(--max),calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }
    .sr-only{
      position:absolute;
      width:1px;
      height:1px;
      padding:0;
      margin:-1px;
      overflow:hidden;
      clip:rect(0,0,0,0);
      white-space:nowrap;
      border:0;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:80;
      transition:background .25s ease,border-color .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
      border-bottom:1px solid transparent;
    }
    .site-header.is-scrolled{
      background:rgba(7,13,23,.88);
      backdrop-filter:blur(18px);
      border-bottom-color:rgba(184,209,255,.13);
      box-shadow:0 12px 36px rgba(0,0,0,.22);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:76px;
      padding:10px 0;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:0;
      color:var(--text);
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(39,215,255,.95),rgba(107,99,255,.92));
      color:#07111d;
      box-shadow:0 10px 24px rgba(39,215,255,.24);
      font-size:18px;
      flex:0 0 auto;
    }
    .brand span:last-child{
      font-size:1.02rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:8px;
      border:1px solid rgba(184,209,255,.13);
      background:rgba(7,13,23,.46);
      border-radius:999px;
      backdrop-filter:blur(16px);
      box-shadow:0 8px 22px rgba(0,0,0,.18);
    }
    .site-nav a{
      position:relative;
      padding:10px 15px;
      color:var(--muted);
      border-radius:999px;
      transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
      font-size:.95rem;
      white-space:nowrap;
    }
    .site-nav a:hover,
    .site-nav a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.06);
      transform:translateY(-1px);
      outline:none;
    }
    .site-nav a[aria-current="page"]{
      color:#07111d;
      background:linear-gradient(135deg,var(--primary),#9cf0ff);
      box-shadow:0 10px 22px rgba(39,215,255,.22);
      font-weight:700;
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .icon-btn,
    .nav-toggle,
    .btn{
      border:0;
      cursor:pointer;
      transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,opacity .18s ease;
    }
    .icon-btn{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:999px;
      color:var(--text);
      background:rgba(255,255,255,.05);
      border:1px solid rgba(184,209,255,.12);
    }
    .icon-btn:hover,
    .icon-btn:focus-visible{
      transform:translateY(-1px);
      background:rgba(255,255,255,.08);
      border-color:rgba(184,209,255,.22);
      outline:none;
    }
    .icon-btn svg,
    .nav-toggle svg,
    .btn svg,
    .feature-icon svg,
    .matrix-icon svg,
    .proof-avatar svg,
    .safety-icon svg,
    .faq-icon svg{
      width:18px;
      height:18px;
      stroke:currentColor;
      fill:none;
      stroke-width:1.9;
      stroke-linecap:round;
      stroke-linejoin:round;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      white-space:nowrap;
      letter-spacing:0;
    }
    .btn-primary{
      color:#06111a;
      background:linear-gradient(135deg,var(--primary),#9fe9ff);
      box-shadow:0 14px 28px rgba(39,215,255,.22);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 18px 34px rgba(39,215,255,.3);
      outline:none;
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(184,209,255,.16);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      background:rgba(255,255,255,.07);
      border-color:rgba(184,209,255,.24);
      transform:translateY(-1px);
      outline:none;
    }
    .btn-warm{
      color:#231206;
      background:linear-gradient(135deg,#ffb25f,#ffd19f);
      box-shadow:0 14px 28px rgba(255,154,77,.18);
    }
    .btn-warm:hover,
    .btn-warm:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 18px 34px rgba(255,154,77,.24);
      outline:none;
    }
    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(184,209,255,.12);
      color:var(--text);
      align-items:center;
      justify-content:center;
      gap:4px;
      flex-direction:column;
    }
    .nav-toggle span{
      width:18px;
      height:2px;
      border-radius:999px;
      background:currentColor;
      transition:transform .18s ease,opacity .18s ease;
    }
    .mobile-panel{
      display:none;
      background:rgba(7,13,23,.94);
      backdrop-filter:blur(16px);
      border-top:1px solid rgba(184,209,255,.12);
      border-bottom:1px solid rgba(184,209,255,.12);
      box-shadow:0 14px 36px rgba(0,0,0,.22);
    }
    .mobile-panel-inner{
      display:grid;
      gap:10px;
      padding:16px 0 18px;
    }
    .mobile-panel a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 16px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(184,209,255,.08);
      color:var(--text);
    }
    .mobile-panel a small{
      color:var(--muted);
    }
    .hero{
      position:relative;
      padding:34px 0 18px;
      overflow:hidden;
    }
    .hero-panel{
      position:relative;
      border:1px solid rgba(184,209,255,.13);
      border-radius:28px;
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(8,16,28,.92),rgba(10,20,36,.86)),
        linear-gradient(180deg,rgba(39,215,255,.06),transparent 46%);
      box-shadow:var(--shadow);
      min-height:640px;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg,rgba(39,215,255,.16),transparent 30%),
        linear-gradient(315deg,rgba(255,154,77,.12),transparent 38%),
        radial-gradient(circle at 85% 12%,rgba(107,99,255,.22),transparent 18%),
        radial-gradient(circle at 12% 88%,rgba(73,226,172,.12),transparent 16%);
      opacity:.9;
      pointer-events:none;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px),
        linear-gradient(180deg,rgba(255,255,255,.03) 1px,transparent 1px);
      background-size:88px 88px;
      opacity:.12;
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:28px;
      align-items:center;
      padding:42px;
      min-height:640px;
    }
    .hero-copy{
      max-width:640px;
      padding:12px 0 8px;
    }
    .eyebrow-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:18px;
    }
    .chip,
    .mini-chip,
    .badge,
    .status-pill,
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      font-size:.85rem;
      line-height:1;
      border:1px solid rgba(184,209,255,.14);
      background:rgba(255,255,255,.04);
      color:var(--text);
    }
    .chip-accent{
      background:linear-gradient(135deg,rgba(39,215,255,.18),rgba(107,99,255,.15));
      border-color:rgba(159,233,255,.18);
    }
    .chip-warm{
      background:linear-gradient(135deg,rgba(255,154,77,.18),rgba(255,111,145,.12));
      border-color:rgba(255,194,136,.18);
    }
    .hero h1{
      margin:0;
      font-size:3.4rem;
      line-height:1.06;
      letter-spacing:0;
      max-width:10ch;
    }
    .hero-lead{
      margin:18px 0 0;
      max-width:58ch;
      color:var(--muted);
      font-size:1.05rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:12px;
      margin-top:26px;
    }
    .search-form{
      margin-top:18px;
      display:flex;
      align-items:center;
      gap:10px;
      max-width:590px;
      padding:10px;
      border-radius:20px;
      background:rgba(7,13,23,.42);
      border:1px solid rgba(184,209,255,.12);
      backdrop-filter:blur(12px);
    }
    .search-field{
      flex:1 1 auto;
      min-width:0;
      display:flex;
      align-items:center;
      gap:10px;
      padding:0 8px;
    }
    .search-field svg{
      flex:0 0 auto;
      color:var(--muted);
    }
    .search-field input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      min-width:0;
    }
    .search-field input::placeholder{color:var(--muted-2)}
    .hero-stats{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .hero-stats .badge{
      padding:10px 14px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      color:var(--text);
      font-weight:600;
    }
    .hero-stats .badge strong{
      font-size:1.08rem;
      color:#fff;
    }
    .hero-visual{
      display:grid;
      gap:16px;
      align-self:stretch;
    }
    .ranking-card,
    .mini-board{
      border:1px solid rgba(184,209,255,.14);
      border-radius:24px;
      background:linear-gradient(180deg,rgba(12,21,37,.92),rgba(11,18,31,.78));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .ranking-card{
      padding:18px;
      position:relative;
    }
    .ranking-head,
    .mini-board-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding-bottom:14px;
      margin-bottom:14px;
      border-bottom:1px solid rgba(184,209,255,.12);
    }
    .ranking-head h2,
    .mini-board-head h3{
      margin:0;
      font-size:1rem;
    }
    .ranking-note{
      color:var(--muted);
      font-size:.88rem;
    }
    .rank-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .rank-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:12px;
      align-items:center;
      padding:14px 0;
      border-bottom:1px solid rgba(184,209,255,.09);
    }
    .rank-item:last-child{border-bottom:0;padding-bottom:0}
    .rank-num{
      width:38px;
      height:38px;
      border-radius:12px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(184,209,255,.12);
      color:var(--text);
      font-weight:700;
      font-size:.92rem;
    }
    .rank-main{
      min-width:0;
    }
    .rank-main strong{
      display:block;
      font-size:1rem;
      margin-bottom:4px;
    }
    .rank-main small{
      display:block;
      color:var(--muted);
      font-size:.87rem;
    }
    .rank-score{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:6px;
      min-width:72px;
    }
    .rank-score b{
      font-size:1rem;
      color:#fff;
    }
    .meter{
      width:72px;
      height:7px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      overflow:hidden;
    }
    .meter span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--primary),#9ef1ff);
    }
    .mini-board{
      padding:16px;
    }
    .mini-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .mini-stat{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(184,209,255,.1);
    }
    .mini-stat strong{
      display:block;
      font-size:1.35rem;
      margin-bottom:6px;
    }
    .mini-stat span{
      display:block;
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-foot{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      margin-top:14px;
      padding:0 8px;
      color:var(--muted);
      font-size:.92rem;
    }
    .hero-foot .hint{
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .section{
      position:relative;
      padding:68px 0 0;
      z-index:1;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:24px;
    }
    .section-title-wrap{
      max-width:760px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:10px;
      color:#99eaff;
      font-weight:700;
      font-size:.88rem;
      text-transform:none;
    }
    .section-kicker::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 0 6px rgba(39,215,255,.08);
    }
    .section h2{
      margin:0;
      font-size:2rem;
      line-height:1.16;
      letter-spacing:0;
    }
    .section-desc{
      margin:10px 0 0;
      color:var(--muted);
      max-width:68ch;
    }
    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .feature-card,
    .matrix-card,
    .proof-card,
    .safety-card,
    .cta-panel,
    .latest-rail,
    .latest-shell,
    .demo-shell{
      border:1px solid rgba(184,209,255,.12);
      background:rgba(12,20,35,.7);
      border-radius:24px;
      box-shadow:var(--shadow-soft);
    }
    .feature-card{
      padding:22px;
      min-height:230px;
      transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease;
      position:relative;
      overflow:hidden;
    }
    .feature-card::before{
      content:"";
      position:absolute;
      inset:auto -12% -12% auto;
      width:130px;
      height:130px;
      border-radius:32px;
      background:linear-gradient(135deg,rgba(39,215,255,.12),rgba(107,99,255,.1));
      transform:rotate(18deg);
      pointer-events:none;
    }
    .feature-card:hover,
    .feature-card:focus-within{
      transform:translateY(-3px);
      border-color:rgba(184,209,255,.24);
      box-shadow:0 22px 44px rgba(0,0,0,.28);
    }
    .feature-icon,
    .matrix-icon,
    .safety-icon{
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
      color:#0b1323;
      background:linear-gradient(135deg,var(--primary),#9cecff);
      box-shadow:0 12px 26px rgba(39,215,255,.18);
    }
    .feature-card.alt .feature-icon{
      background:linear-gradient(135deg,var(--accent),#ffd2a0);
      box-shadow:0 12px 26px rgba(255,154,77,.18);
    }
    .feature-card.alt-2 .feature-icon{
      background:linear-gradient(135deg,#7e77ff,#be98ff);
      box-shadow:0 12px 26px rgba(107,99,255,.18);
    }
    .feature-card h3,
    .matrix-card h3,
    .proof-card h3,
    .safety-card h3{
      margin:0 0 10px;
      font-size:1.15rem;
      line-height:1.35;
    }
    .feature-card p,
    .matrix-card p,
    .proof-card p,
    .safety-card p{
      margin:0;
      color:var(--muted);
      font-size:.96rem;
    }
    .feature-card .tag,
    .matrix-card .tag,
    .proof-card .tag,
    .safety-card .tag{
      margin-top:16px;
      color:#dff8ff;
      background:rgba(255,255,255,.05);
    }
    .feature-card .tag.tag-warm{color:#ffe5ca}
    .feature-card .tag.tag-success{color:#c8ffea}
    .demo-shell{
      padding:18px;
      overflow:hidden;
    }
    .demo-tabs{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      padding-bottom:16px;
      border-bottom:1px solid rgba(184,209,255,.11);
    }
    .demo-tab{
      border:1px solid rgba(184,209,255,.13);
      background:rgba(255,255,255,.04);
      color:var(--muted);
      padding:11px 15px;
      border-radius:999px;
      cursor:pointer;
      transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
    }
    .demo-tab:hover,
    .demo-tab:focus-visible{
      transform:translateY(-1px);
      color:var(--text);
      border-color:rgba(184,209,255,.2);
      outline:none;
    }
    .demo-tab.is-active{
      color:#06111a;
      background:linear-gradient(135deg,var(--primary),#b2f4ff);
      border-color:transparent;
      box-shadow:0 12px 24px rgba(39,215,255,.16);
      font-weight:700;
    }
    .demo-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:18px;
      padding-top:18px;
    }
    .demo-panel{
      display:none;
      gap:18px;
    }
    .demo-panel.is-active{
      display:grid;
      grid-template-columns:1fr 240px;
      align-items:stretch;
    }
    .demo-screen,
    .demo-side{
      border:1px solid rgba(184,209,255,.11);
      border-radius:22px;
      background:rgba(8,14,25,.78);
    }
    .demo-screen{
      padding:18px;
      min-height:320px;
    }
    .screen-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:14px;
    }
    .screen-head strong{
      font-size:1.02rem;
    }
    .screen-head span{
      color:var(--muted);
      font-size:.9rem;
    }
    .screen-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .screen-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:12px;
      align-items:center;
      padding:14px 0;
      border-bottom:1px solid rgba(184,209,255,.09);
    }
    .screen-item:last-child{border-bottom:0}
    .screen-dot{
      width:12px;
      height:12px;
      border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 0 6px rgba(39,215,255,.08);
    }
    .screen-copy{
      min-width:0;
    }
    .screen-copy strong{
      display:block;
      font-size:1rem;
      margin-bottom:5px;
    }
    .screen-copy small{
      display:block;
      color:var(--muted);
      font-size:.88rem;
    }
    .screen-badges{
      display:flex;
      flex-wrap:wrap;
      gap:6px;
      justify-content:flex-end;
    }
    .status-pill{
      padding:7px 10px;
      font-size:.78rem;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      color:#dff8ff;
    }
    .status-pill.hot{
      background:rgba(255,154,77,.16);
      color:#ffdcb9;
      border-color:rgba(255,194,136,.2);
    }
    .status-pill.ok{
      background:rgba(73,226,172,.16);
      color:#cafbe8;
      border-color:rgba(156,255,220,.2);
    }
    .demo-side{
      padding:18px;
      display:grid;
      gap:14px;
      align-content:start;
    }
    .side-step{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(184,209,255,.09);
    }
    .side-step strong{
      display:block;
      margin-bottom:6px;
      font-size:.98rem;
    }
    .side-step p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .side-meter{
      display:grid;
      gap:10px;
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(184,209,255,.09);
      background:linear-gradient(135deg,rgba(39,215,255,.08),rgba(107,99,255,.06));
    }
    .side-meter strong{
      font-size:1.2rem;
    }
    .side-meter small{
      color:var(--muted);
    }
    .matrix-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .matrix-card{
      padding:18px;
      min-height:188px;
      transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
    }
    .matrix-card:hover,
    .matrix-card:focus-within{
      transform:translateY(-3px);
      border-color:rgba(184,209,255,.24);
      box-shadow:0 22px 44px rgba(0,0,0,.28);
    }
    .matrix-card .matrix-icon{
      margin-bottom:14px;
    }
    .matrix-card.primary{
      background:linear-gradient(180deg,rgba(14,24,42,.84),rgba(11,18,31,.74));
    }
    .matrix-card.strong{
      background:linear-gradient(180deg,rgba(22,28,52,.86),rgba(11,18,31,.78));
    }
    .matrix-card .matrix-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:16px;
      color:#e5fbff;
      font-weight:700;
      font-size:.92rem;
    }
    .matrix-card .matrix-link svg{
      width:15px;
      height:15px;
    }
    .latest-grid{
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:18px;
    }
    .latest-shell{
      padding:18px;
      background:rgba(11,18,31,.72);
    }
    .latest-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .latest-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:start;
      padding:16px 0;
      border-bottom:1px solid rgba(184,209,255,.09);
    }
    .latest-item:last-child{border-bottom:0;padding-bottom:0}
    .latest-time{
      min-width:82px;
      color:#c7d7f0;
      font-size:.84rem;
      padding-top:2px;
    }
    .latest-title{
      display:block;
      font-weight:700;
      line-height:1.42;
      margin-bottom:5px;
    }
    .latest-title:hover,
    .latest-title:focus-visible{
      color:#dff8ff;
      outline:none;
    }
    .latest-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--muted);
      font-size:.88rem;
    }
    .latest-rail{
      padding:20px;
      display:grid;
      gap:14px;
      align-content:start;
      background:linear-gradient(180deg,rgba(14,24,42,.9),rgba(9,15,25,.76));
    }
    .rail-card{
      padding:15px;
      border-radius:18px;
      border:1px solid rgba(184,209,255,.09);
      background:rgba(255,255,255,.04);
    }
    .rail-card strong{
      display:block;
      margin-bottom:8px;
      font-size:1rem;
    }
    .rail-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .rail-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .rail-stats .mini-stat{
      background:rgba(255,255,255,.04);
    }
    .proof-strip{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-bottom:18px;
    }
    .proof-strip .mini-stat{
      padding:16px 18px;
      border-radius:18px;
      border:1px solid rgba(184,209,255,.1);
      background:rgba(255,255,255,.04);
    }
    .proof-strip strong{
      font-size:1.35rem;
      display:block;
      margin-bottom:4px;
    }
    .proof-strip span{
      color:var(--muted);
      font-size:.9rem;
    }
    .proof-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
    }
    .proof-card{
      padding:20px;
      min-height:200px;
      background:linear-gradient(180deg,rgba(13,22,39,.78),rgba(8,14,25,.76));
    }
    .proof-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:16px;
    }
    .proof-stars{
      color:#ffd59c;
      letter-spacing:1px;
      font-size:.92rem;
    }
    .proof-card .proof-name{
      color:#dff8ff;
      font-weight:700;
      font-size:.92rem;
    }
    .proof-card p{
      font-size:.95rem;
      line-height:1.8;
    }
    .safety-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .safety-card{
      padding:18px;
      background:rgba(12,20,35,.66);
      min-height:176px;
      transition:transform .18s ease,border-color .18s ease;
    }
    .safety-card:hover,
    .safety-card:focus-within{
      transform:translateY(-2px);
      border-color:rgba(184,209,255,.22);
    }
    .safety-card .safety-icon{
      margin-bottom:14px;
      background:linear-gradient(135deg,var(--success),#b0ffe6);
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid rgba(184,209,255,.12);
      border-radius:20px;
      background:rgba(11,18,31,.76);
      overflow:hidden;
    }
    .faq-trigger{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 18px;
      background:transparent;
      color:var(--text);
      border:0;
      cursor:pointer;
      text-align:left;
    }
    .faq-trigger span{
      font-size:1rem;
      font-weight:700;
    }
    .faq-icon{
      width:34px;
      height:34px;
      border-radius:999px;
      display:grid;
      place-items:center;
      color:var(--text);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(184,209,255,.12);
      flex:0 0 auto;
      transition:transform .18s ease,background .18s ease;
    }
    .faq-item.is-open .faq-icon{
      transform:rotate(180deg);
      background:rgba(39,215,255,.14);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .24s ease;
      border-top:1px solid rgba(184,209,255,.09);
    }
    .faq-answer div{
      padding:0 18px 18px;
      color:var(--muted);
    }
    .faq-item.is-open .faq-answer{
      max-height:240px;
    }
    .cta-band{
      padding:72px 0 0;
    }
    .cta-panel{
      padding:24px;
      background:
        linear-gradient(135deg,rgba(39,215,255,.12),rgba(107,99,255,.1)),
        linear-gradient(180deg,rgba(11,18,31,.84),rgba(8,14,25,.78));
    }
    .cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .cta-copy{
      max-width:680px;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:1.85rem;
    }
    .cta-copy p{
      margin:0;
      color:var(--muted);
      max-width:60ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      flex:0 0 auto;
    }
    .footer{
      position:relative;
      z-index:1;
      padding:28px 0 80px;
    }
    .footer-inner{
      border-top:1px solid rgba(184,209,255,.12);
      padding-top:24px;
      display:grid;
      gap:18px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:18px;
    }
    .footer-brand{
      display:grid;
      gap:12px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      max-width:48ch;
    }
    .footer-links{
      display:grid;
      gap:10px;
      align-content:start;
    }
    .footer-links h3{
      margin:0 0 4px;
      font-size:1rem;
    }
    .footer-links a{
      color:var(--muted);
      transition:color .18s ease,transform .18s ease;
      display:inline-flex;
      width:fit-content;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:var(--text);
      transform:translateX(2px);
      outline:none;
    }
    .footer-meta{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
      padding-top:8px;
      border-top:1px solid rgba(184,209,255,.09);
      color:var(--muted-2);
      font-size:.9rem;
    }
    .sticky-cta{
      position:fixed;
      left:50%;
      transform:translateX(-50%);
      bottom:16px;
      width:min(1120px,calc(100% - 24px));
      z-index:90;
      background:rgba(9,15,25,.88);
      backdrop-filter:blur(18px);
      border:1px solid rgba(184,209,255,.14);
      border-radius:22px;
      box-shadow:0 18px 44px rgba(0,0,0,.3);
    }
    .sticky-cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:14px 16px;
    }
    .sticky-copy{
      min-width:0;
    }
    .sticky-copy strong{
      display:block;
      margin-bottom:3px;
      font-size:1rem;
    }
    .sticky-copy span{
      color:var(--muted);
      font-size:.88rem;
    }
    .sticky-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      flex:0 0 auto;
    }
    .empty-state{
      display:none;
      padding:16px;
      border-radius:18px;
      margin-top:12px;
      background:rgba(255,255,255,.04);
      border:1px dashed rgba(184,209,255,.16);
      color:var(--muted);
      text-align:center;
    }
    .skeleton{
      background:linear-gradient(90deg,rgba(255,255,255,.04),rgba(255,255,255,.09),rgba(255,255,255,.04));
      background-size:200% 100%;
      animation:sweep 1.4s infinite linear;
    }
    .skeleton-line{
      height:12px;
      border-radius:999px;
    }
    .skeleton-card{
      height:86px;
      border-radius:18px;
    }
    @keyframes sweep{
      0%{background-position:200% 0}
      100%{background-position:-200% 0}
    }
    @media (max-width: 1120px){
      .hero-grid{
        grid-template-columns:1fr;
        min-height:auto;
      }
      .hero h1{max-width:12ch}
      .demo-grid,
      .latest-grid{
        grid-template-columns:1fr;
      }
      .matrix-grid,
      .proof-grid,
      .safety-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
    }
    @media (max-width: 900px){
      .site-nav,
      .nav-actions .btn-primary{
        display:none;
      }
      .nav-toggle{
        display:inline-flex;
      }
      .mobile-panel.is-open{
        display:block;
      }
      .section-head,
      .cta-inner,
      .sticky-cta-inner{
        flex-direction:column;
        align-items:flex-start;
      }
      .hero-panel{
        min-height:auto;
      }
      .hero-grid{
        padding:28px 20px 20px;
      }
      .hero h1{
        font-size:2.75rem;
      }
      .mini-row,
      .proof-strip{
        grid-template-columns:1fr;
      }
      .demo-panel.is-active{
        grid-template-columns:1fr;
      }
      .demo-panel{
        gap:12px;
      }
    }
    @media (max-width: 720px){
      .container{
        width:min(var(--max),calc(100% - 24px));
      }
      .nav-wrap{
        min-height:70px;
      }
      .hero{
        padding-top:18px;
      }
      .hero-panel{
        border-radius:24px;
      }
      .hero-grid{
        gap:20px;
        padding:22px 16px 18px;
      }
      .hero h1{
        font-size:2.18rem;
        max-width:none;
      }
      .hero-lead{
        font-size:.98rem;
      }
      .search-form{
        flex-direction:column;
        align-items:stretch;
      }
      .search-field{
        padding:2px 4px;
      }
      .btn{
        width:100%;
      }
      .hero-actions{
        width:100%;
      }
      .grid-3,
      .matrix-grid,
      .proof-grid,
      .safety-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .feature-card,
      .matrix-card,
      .proof-card,
      .safety-card{
        min-height:auto;
      }
      .rank-item,
      .screen-item,
      .latest-item{
        grid-template-columns:1fr;
      }
      .rank-score,
      .screen-badges{
        align-items:flex-start;
        justify-content:flex-start;
      }
      .sticky-cta{
        width:calc(100% - 16px);
        bottom:8px;
        border-radius:18px;
      }
      .sticky-actions{
        width:100%;
      }
      .sticky-actions .btn{
        width:auto;
        flex:1 1 160px;
      }
      .sticky-copy strong{
        line-height:1.3;
      }
    }
    @media (max-width: 520px){
      .brand span:last-child{
        font-size:.98rem;
      }
      .hero h1{
        font-size:1.98rem;
      }
      .section h2{
        font-size:1.55rem;
      }
      .section-desc,
      .cta-copy p{
        font-size:.96rem;
      }
      .hero-stats{
        gap:8px;
      }
      .hero-stats .badge{
        width:100%;
        justify-content:space-between;
      }
      .cta-panel,
      .latest-shell,
      .latest-rail,
      .demo-shell{
        border-radius:20px;
      }
      .faq-trigger{
        padding:16px;
      }
      .faq-trigger span{
        font-size:.96rem;
      }
    }

/* roulang page: category2 */
:root{
  --bg: #f4f8ff;
  --bg-2: #eef3fb;
  --surface: rgba(255,255,255,.78);
  --surface-strong: rgba(255,255,255,.94);
  --surface-dark: rgba(10, 22, 36, .78);
  --text: #102033;
  --muted: #5d6b80;
  --soft: #7f8ca2;
  --line: rgba(20, 44, 72, .10);
  --line-strong: rgba(20, 44, 72, .16);
  --brand: #18c1cc;
  --brand-2: #5b6cff;
  --brand-3: #f59e0b;
  --accent: #ff6a59;
  --success: #23b26d;
  --shadow: 0 18px 45px rgba(20, 44, 72, .10);
  --shadow-strong: 0 22px 58px rgba(20, 44, 72, .18);
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --container: 1180px;
  --nav-h: 78px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 20px;
  --space-5: 28px;
  --space-6: 36px;
  --space-7: 48px;
  --space-8: 72px;
}

*,
*::before,
*::after{
  box-sizing: border-box;
}

html{
  scroll-behavior: smooth;
}

body{
  margin: 0;
  font-family: "Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(24, 193, 204, .16), transparent 24%),
    radial-gradient(circle at 84% 14%, rgba(91, 108, 255, .14), transparent 22%),
    radial-gradient(circle at 68% 82%, rgba(245, 158, 11, .08), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, #f8fbff 28%, #eef4ff 100%);
  line-height: 1.65;
  letter-spacing: 0;
  overflow-x: hidden;
  padding-bottom: 110px;
}

body::before{
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255,255,255,.26) 0%, rgba(255,255,255,0) 34%),
    repeating-linear-gradient(90deg, rgba(16,32,51,.024) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(0deg, rgba(16,32,51,.02) 0 1px, transparent 1px 40px);
  opacity: .55;
  mix-blend-mode: multiply;
}

img{
  max-width: 100%;
  display: block;
}

a{
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea{
  font: inherit;
}

button{
  border: 0;
  background: none;
  cursor: pointer;
  color: inherit;
}

:focus-visible{
  outline: 3px solid rgba(24, 193, 204, .35);
  outline-offset: 3px;
}

::selection{
  background: rgba(24, 193, 204, .22);
}

.container{
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.site-header{
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: min(var(--container), calc(100% - 24px));
  z-index: 80;
  border: 1px solid rgba(255,255,255,.42);
  border-radius: 999px;
  background: rgba(248, 250, 255, .42);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 34px rgba(10, 18, 32, .10);
  transition: background .22s ease, box-shadow .22s ease, border-color .22s ease, transform .22s ease;
}

.site-header.scrolled{
  background: rgba(255,255,255,.86);
  border-color: rgba(20,44,72,.10);
  box-shadow: 0 16px 40px rgba(10, 18, 32, .14);
}

.header-inner{
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 16px;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 800;
  color: var(--text);
}

.brand-mark{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 50%, var(--brand-3) 100%);
  color: #fff;
  box-shadow: 0 10px 24px rgba(91, 108, 255, .24);
  flex: 0 0 auto;
}

.brand span:last-child{
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 1.02rem;
}

.nav-wrap{
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-nav{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,.34);
  border: 1px solid rgba(255,255,255,.54);
}

.site-nav a{
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  transition: background .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.site-nav a:hover{
  color: var(--text);
  background: rgba(24, 193, 204, .10);
}

.site-nav a.active,
.site-nav a[aria-current="page"]{
  color: #072b31;
  background: linear-gradient(135deg, rgba(24,193,204,.18), rgba(91,108,255,.16));
  box-shadow: inset 0 0 0 1px rgba(24,193,204,.24);
}

.header-actions{
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.icon-btn,
.ghost-btn,
.primary-btn,
.secondary-btn,
.load-more-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease, opacity .18s ease;
}

.icon-btn{
  width: 42px;
  height: 42px;
  border: 1px solid rgba(20,44,72,.10);
  background: rgba(255,255,255,.75);
  box-shadow: 0 8px 18px rgba(10, 18, 32, .06);
}

.icon-btn:hover{
  transform: translateY(-1px);
  border-color: rgba(24,193,204,.25);
  box-shadow: 0 12px 24px rgba(10, 18, 32, .10);
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.load-more-btn{
  padding: 13px 18px;
  border: 1px solid transparent;
}

.primary-btn{
  color: #fff;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 55%, #7658ff 100%);
  box-shadow: 0 16px 30px rgba(91, 108, 255, .22);
}

.primary-btn:hover{
  transform: translateY(-2px);
  box-shadow: 0 20px 42px rgba(91, 108, 255, .30);
}

.secondary-btn{
  color: #103245;
  background: rgba(255,255,255,.72);
  border-color: rgba(20,44,72,.12);
}

.secondary-btn:hover,
.ghost-btn:hover,
.load-more-btn:hover{
  transform: translateY(-2px);
  border-color: rgba(24,193,204,.26);
  box-shadow: 0 16px 34px rgba(10, 18, 32, .10);
}

.ghost-btn{
  color: #103245;
  background: rgba(255,255,255,.52);
  border-color: rgba(20,44,72,.10);
}

.nav-toggle{
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(255,255,255,.8);
  border: 1px solid rgba(20,44,72,.10);
}

.nav-toggle span{
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after{
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: transform .18s ease, top .18s ease, opacity .18s ease;
}

.nav-toggle span::before{ top: -6px; }
.nav-toggle span::after{ top: 6px; }

.nav-toggle.is-open span{
  background: transparent;
}

.nav-toggle.is-open span::before{
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle.is-open span::after{
  top: 0;
  transform: rotate(-45deg);
}

.hero{
  position: relative;
  padding: 118px 0 34px;
  overflow: hidden;
}

.hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(24,193,204,.26), transparent 23%),
    radial-gradient(circle at 80% 12%, rgba(91,108,255,.18), transparent 23%),
    linear-gradient(135deg, rgba(5, 24, 40, .84), rgba(9, 28, 53, .76) 48%, rgba(19, 46, 77, .88) 100%);
  z-index: 0;
}

.hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(255,255,255,.10) 0%, rgba(255,255,255,0) 30%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 42px);
  opacity: .32;
  z-index: 0;
}

.hero-inner{
  position: relative;
  z-index: 1;
  color: #f6fbff;
}

.hero-breadcrumb{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(246,251,255,.84);
  font-size: .92rem;
  margin-bottom: 16px;
}

.hero-breadcrumb span{
  opacity: .72;
}

.hero-title{
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.2rem, 4.4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-subtitle{
  max-width: 56ch;
  margin: 18px 0 0;
  color: rgba(246,251,255,.82);
  font-size: 1.03rem;
}

.hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-actions .primary-btn{
  min-width: 150px;
}

.hero-actions .secondary-btn{
  min-width: 150px;
  background: rgba(255,255,255,.10);
  color: #fff;
  border-color: rgba(255,255,255,.16);
}

.hero-actions .secondary-btn:hover{
  background: rgba(255,255,255,.16);
  border-color: rgba(255,255,255,.22);
}

.hero-stats{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.stat-badge{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(8px);
  font-size: .95rem;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04);
}

.hero-visual{
  margin-top: 28px;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.14), rgba(255,255,255,.08)),
    rgba(12, 26, 44, .42);
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: var(--shadow-strong);
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.visual-top{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.visual-title{
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.visual-title strong{
  font-size: 1.05rem;
}

.visual-title span{
  color: rgba(246,251,255,.74);
  font-size: .92rem;
}

.visual-kpis{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
}

.kpi{
  padding: 14px 14px 13px;
  border-radius: 18px;
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.12);
}

.kpi .label{
  display: block;
  font-size: .84rem;
  color: rgba(246,251,255,.72);
}

.kpi .value{
  display: block;
  margin-top: 8px;
  font-size: 1.45rem;
  line-height: 1.1;
  font-weight: 800;
}

.stream-list{
  padding: 0 18px 18px;
  display: grid;
  gap: 10px;
}

.stream-item{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.10);
}

.stream-index{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, rgba(24,193,204,.95), rgba(91,108,255,.95));
}

.stream-item h3{
  margin: 0;
  font-size: 1rem;
}

.stream-item p{
  margin: 4px 0 0;
  color: rgba(246,251,255,.72);
  font-size: .92rem;
}

.stream-tag{
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(245,158,11,.16);
  color: #ffe8bd;
  border: 1px solid rgba(245,158,11,.22);
  font-size: .85rem;
  white-space: nowrap;
}

.panel-note{
  padding: 0 18px 18px;
  color: rgba(246,251,255,.72);
  font-size: .94rem;
}

.section{
  padding: var(--space-8) 0;
  position: relative;
}

.section-head{
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.section-head h2{
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.3rem);
  line-height: 1.12;
}

.section-head p{
  margin: 0;
  color: var(--muted);
  max-width: 56ch;
}

.section-eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: #0f5964;
  font-size: .92rem;
  font-weight: 700;
}

.grid-3{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.stat-card,
.review-card,
.faq-item,
.showcase-panel,
.filter-shell,
.load-shell,
.cta-band{
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.feature-card{
  padding: 24px;
  min-height: 220px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.feature-card:hover{
  transform: translateY(-4px);
  border-color: rgba(24,193,204,.24);
  box-shadow: var(--shadow-strong);
}

.feature-icon{
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(24,193,204,.18), rgba(91,108,255,.16));
  color: #155661;
  border: 1px solid rgba(24,193,204,.16);
}

.feature-card h3{
  margin: 16px 0 10px;
  font-size: 1.12rem;
}

.feature-card p{
  margin: 0;
  color: var(--muted);
}

.mini-tag{
  display: inline-flex;
  margin-top: 18px;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(24,193,204,.10);
  color: #0b6670;
  font-size: .84rem;
  font-weight: 700;
}

.showcase{
  padding-top: 0;
}

.showcase-grid{
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: 20px;
  align-items: stretch;
}

.showcase-panel{
  padding: 22px;
  overflow: hidden;
}

.segmented{
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(16,32,51,.04);
  border: 1px solid rgba(20,44,72,.08);
}

.segmented button{
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}

.segmented button:hover{
  color: var(--text);
  background: rgba(24,193,204,.10);
}

.segmented button.is-active{
  color: #05363d;
  background: linear-gradient(135deg, rgba(24,193,204,.20), rgba(91,108,255,.15));
  box-shadow: inset 0 0 0 1px rgba(24,193,204,.20);
}

.mock-screen{
  margin-top: 18px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(244,247,255,.94));
  border: 1px solid rgba(20,44,72,.10);
  overflow: hidden;
}

.mock-top{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(24,193,204,.10), rgba(91,108,255,.08));
  border-bottom: 1px solid rgba(20,44,72,.08);
}

.mock-top strong{
  font-size: 1.02rem;
}

.mock-top span{
  color: var(--muted);
  font-size: .9rem;
}

.mock-rows{
  padding: 16px 18px 18px;
  display: grid;
  gap: 10px;
}

.mock-row{
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 12px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(20,44,72,.08);
}

.mock-dot{
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 6px rgba(24,193,204,.10);
}

.mock-row h4{
  margin: 0;
  font-size: 1rem;
}

.mock-row p{
  margin: 5px 0 0;
  color: var(--muted);
  font-size: .9rem;
}

.mock-status{
  display: inline-flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(35,178,109,.10);
  color: #1c8252;
  border: 1px solid rgba(35,178,109,.18);
  white-space: nowrap;
  font-size: .84rem;
  font-weight: 700;
}

.mock-chart{
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.bar{
  height: 12px;
  border-radius: 999px;
  background: rgba(20,44,72,.07);
  overflow: hidden;
}

.bar > span{
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--brand-2), var(--brand-3));
}

.step-list{
  display: grid;
  gap: 14px;
}

.step-card{
  padding: 20px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow);
}

.step-card strong{
  display: block;
  font-size: 1.04rem;
  margin-bottom: 8px;
}

.step-card p{
  margin: 0;
  color: var(--muted);
}

.step-rail{
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.rail-item{
  display: grid;
  grid-template-columns: auto minmax(0,1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(20,44,72,.08);
}

.rail-bullet{
  width: 28px;
  height: 28px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(24,193,204,.15), rgba(91,108,255,.12));
  color: #0f5964;
  font-weight: 800;
}

.rail-item h4{
  margin: 0 0 4px;
  font-size: 1rem;
}

.rail-item p{
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}

.filter-shell{
  padding: 20px;
}

.filter-bar{
  display: grid;
  grid-template-columns: minmax(0,1.2fr) auto;
  gap: 14px;
  align-items: center;
}

.search-box{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  min-height: 54px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(20,44,72,.10);
  box-shadow: 0 8px 18px rgba(10,18,32,.05);
}

.search-box svg{
  flex: 0 0 auto;
  color: var(--soft);
}

.search-box input{
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
}

.search-box input::placeholder{
  color: #7a879a;
}

.chip-row{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(20,44,72,.10);
  color: var(--muted);
  transition: background .18s ease, color .18s ease, transform .18s ease, border-color .18s ease;
}

.chip:hover{
  transform: translateY(-1px);
  color: var(--text);
  border-color: rgba(24,193,204,.18);
}

.chip.is-active{
  color: #06343b;
  background: linear-gradient(135deg, rgba(24,193,204,.18), rgba(91,108,255,.14));
  border-color: rgba(24,193,204,.24);
}

.card-grid{
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.resource-card{
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border-radius: var(--radius-xl);
  background: var(--surface-strong);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.resource-card:hover{
  transform: translateY(-4px);
  border-color: rgba(24,193,204,.22);
  box-shadow: var(--shadow-strong);
}

.thumb{
  aspect-ratio: 16 / 10;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(24,193,204,.92), rgba(91,108,255,.82) 52%, rgba(245,158,11,.78));
}

.thumb::before{
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 30%, rgba(255,255,255,.20), transparent 22%),
    radial-gradient(circle at 72% 20%, rgba(255,255,255,.14), transparent 20%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 14px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.08) 0 1px, transparent 1px 14px);
  opacity: .8;
}

.thumb-label{
  position: absolute;
  inset: 14px 14px auto auto;
  z-index: 1;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.16);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(10px);
  font-size: .82rem;
  font-weight: 700;
}

.thumb-tag{
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 1;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(9, 22, 36, .42);
  color: #fff;
  border: 1px solid rgba(255,255,255,.12);
  font-size: .84rem;
}

.card-body{
  padding: 18px;
  display: grid;
  gap: 12px;
}

.card-top{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

.state-badge{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(35,178,109,.10);
  color: #1d8c57;
  border: 1px solid rgba(35,178,109,.18);
  font-size: .82rem;
  font-weight: 700;
  white-space: nowrap;
}

.meta-line{
  color: var(--soft);
  font-size: .86rem;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.resource-card h3{
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.28;
}

.resource-card p{
  margin: 0;
  color: var(--muted);
  font-size: .94rem;
}

.card-actions{
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 2px;
}

.card-actions .primary-btn,
.card-actions .secondary-btn{
  padding: 11px 14px;
  font-size: .92rem;
}

.load-shell{
  margin-top: 18px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.load-more-btn{
  color: #0f3440;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(20,44,72,.10);
}

.load-hint{
  color: var(--muted);
  font-size: .94rem;
}

.trust-grid{
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
}

.stat-card{
  padding: 22px;
}

.stat-card .num{
  display: block;
  font-size: clamp(1.75rem, 2.8vw, 2.4rem);
  line-height: 1;
  font-weight: 900;
  background: linear-gradient(135deg, var(--brand), var(--brand-2), var(--brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-card .desc{
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.review-strip{
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 18px;
}

.review-card{
  padding: 20px;
  display: grid;
  gap: 14px;
}

.avatar{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(24,193,204,.18), rgba(91,108,255,.16));
  color: #0b5963;
  font-weight: 800;
}

.review-card p{
  margin: 0;
  color: var(--text);
}

.review-card .who{
  color: var(--muted);
  font-size: .9rem;
}

.stars{
  color: var(--brand-3);
  letter-spacing: 2px;
}

.faq-list{
  display: grid;
  gap: 14px;
}

.faq-item{
  padding: 0;
  overflow: hidden;
}

.faq-item summary{
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 22px;
  font-weight: 800;
  color: var(--text);
}

.faq-item summary::-webkit-details-marker{
  display: none;
}

.faq-item summary::after{
  content: "+";
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(24,193,204,.10);
  color: #0f5964;
  flex: 0 0 auto;
}

.faq-item[open] summary::after{
  content: "–";
  background: rgba(91,108,255,.10);
}

.faq-body{
  padding: 0 22px 20px;
  color: var(--muted);
}

.cta-band{
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(24,193,204,.14), rgba(91,108,255,.12), rgba(245,158,11,.10)),
    rgba(255,255,255,.92);
}

.cta-band-inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.cta-band h2{
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
}

.cta-band p{
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 58ch;
}

.cta-band .actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer{
  padding: 40px 0 32px;
}

.footer-inner{
  padding-top: 18px;
  border-top: 1px solid rgba(20,44,72,.10);
}

.footer-grid{
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 24px;
}

.footer-brand p{
  margin: 16px 0 0;
  color: var(--muted);
  max-width: 34ch;
}

.footer-links{
  display: grid;
  gap: 10px;
}

.footer-links h3{
  margin: 0 0 6px;
  font-size: 1rem;
}

.footer-links a{
  color: var(--muted);
  transition: color .18s ease, transform .18s ease;
}

.footer-links a:hover{
  color: var(--text);
  transform: translateX(2px);
}

.footer-meta{
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid rgba(20,44,72,.10);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--soft);
  font-size: .92rem;
}

.sticky-cta{
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  width: min(1040px, calc(100% - 20px));
  z-index: 90;
  border-radius: 20px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(20,44,72,.10);
  box-shadow: 0 18px 42px rgba(10,18,32,.18);
}

.sticky-cta-inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
}

.sticky-cta strong{
  display: block;
  font-size: 1rem;
}

.sticky-cta span{
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .92rem;
}

.sticky-cta .actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.empty-state{
  display: none;
  margin-top: 18px;
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px dashed rgba(20,44,72,.16);
  background: rgba(255,255,255,.74);
  text-align: center;
  color: var(--muted);
}

.mobile-panel{
  display: none;
}

@media (max-width: 1120px){
  .card-grid{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
  .trust-grid{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .footer-grid{
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 920px){
  .nav-wrap{
    justify-content: flex-end;
  }
  .site-nav{
    display: none;
  }
  .nav-toggle{
    display: inline-flex;
  }
  .header-actions .ghost-btn,
  .header-actions .secondary-btn{
    display: none;
  }
  .mobile-panel{
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 14px;
    right: 14px;
    padding: 12px;
    border-radius: 22px;
    background: rgba(255,255,255,.95);
    border: 1px solid rgba(20,44,72,.10);
    box-shadow: 0 18px 40px rgba(10,18,32,.16);
  }
  .mobile-panel.is-open{
    display: grid;
    gap: 10px;
  }
  .mobile-panel .site-nav{
    display: grid;
    grid-template-columns: 1fr;
    padding: 0;
    background: transparent;
    border: 0;
  }
  .mobile-panel .site-nav a{
    justify-content: center;
    background: rgba(16,32,51,.04);
  }
  .mobile-panel .mobile-actions{
    display: grid;
    gap: 10px;
    margin-top: 4px;
  }
  .showcase-grid{
    grid-template-columns: 1fr;
  }
  .filter-bar{
    grid-template-columns: 1fr;
  }
  .card-grid{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .review-strip{
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px){
  body{
    padding-bottom: 140px;
  }
  .hero{
    padding-top: 104px;
  }
  .hero-title{
    max-width: 100%;
    font-size: clamp(2rem, 9vw, 3rem);
  }
  .visual-kpis{
    grid-template-columns: 1fr;
  }
  .stream-item{
    grid-template-columns: auto minmax(0,1fr);
  }
  .stream-tag{
    grid-column: 1 / -1;
    justify-self: start;
  }
  .grid-3,
  .trust-grid,
  .card-grid,
  .footer-grid{
    grid-template-columns: 1fr;
  }
  .header-inner{
    padding-inline: 12px;
  }
  .brand span:last-child{
    font-size: .98rem;
  }
  .site-header{
    width: calc(100% - 14px);
  }
  .sticky-cta{
    width: calc(100% - 12px);
    bottom: 10px;
  }
  .sticky-cta-inner{
    padding: 12px 12px 14px;
  }
}

@media (max-width: 520px){
  .container{
    width: min(var(--container), calc(100% - 24px));
  }
  .hero{
    padding-bottom: 26px;
  }
  .hero-actions,
  .sticky-cta .actions,
  .cta-band .actions{
    width: 100%;
  }
  .hero-actions .primary-btn,
  .hero-actions .secondary-btn,
  .sticky-cta .primary-btn,
  .sticky-cta .secondary-btn,
  .cta-band .primary-btn,
  .cta-band .secondary-btn{
    width: 100%;
  }
  .section{
    padding: 60px 0;
  }
  .section-head{
    margin-bottom: 18px;
  }
  .feature-card,
  .stat-card,
  .review-card,
  .step-card,
  .filter-shell,
  .showcase-panel,
  .cta-band{
    border-radius: 18px;
  }
  .mock-row{
    grid-template-columns: auto minmax(0,1fr);
  }
  .mock-status{
    grid-column: 1 / -1;
    justify-self: start;
  }
  .search-box{
    min-height: 50px;
  }
}

@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after{
    animation: none !important;
    transition: none !important;
  }
}

/* roulang page: category1 */
:root{
      --bg: #07101d;
      --bg-2: #0b1527;
      --panel: rgba(12, 21, 38, 0.78);
      --panel-2: rgba(16, 29, 50, 0.9);
      --card: rgba(255,255,255,0.06);
      --card-strong: rgba(255,255,255,0.09);
      --line: rgba(165, 185, 214, 0.18);
      --text: #edf4ff;
      --muted: #9fb2cc;
      --muted-2: #7f93af;
      --primary: #43d7ff;
      --primary-2: #6d7cff;
      --accent: #ffb347;
      --accent-2: #ff7f62;
      --success: #3ddc97;
      --danger: #ff6d7a;
      --shadow: 0 24px 60px rgba(3, 10, 22, 0.42);
      --shadow-soft: 0 16px 34px rgba(3, 10, 22, 0.24);
      --radius: 18px;
      --radius-lg: 24px;
      --radius-sm: 12px;
      --space: 24px;
      --space-lg: 34px;
      --container: 1180px;
      --header-h: 76px;
      --ring: 0 0 0 3px rgba(67, 215, 255, 0.22);
      --grad: linear-gradient(135deg, #43d7ff 0%, #6d7cff 46%, #ffb347 100%);
      --grad-soft: linear-gradient(135deg, rgba(67,215,255,0.20), rgba(109,124,255,0.15) 44%, rgba(255,179,71,0.12));
      --noise: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.05) 0 1px, transparent 1.2px) 0 0 / 20px 20px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background:
        linear-gradient(180deg, rgba(7,16,29,0.92) 0%, rgba(8,14,25,0.98) 34%, rgba(8,14,25,1) 100%),
        radial-gradient(1200px 600px at 18% 10%, rgba(67, 215, 255, 0.16), transparent 55%),
        radial-gradient(900px 520px at 82% 6%, rgba(255, 179, 71, 0.12), transparent 52%),
        radial-gradient(1100px 760px at 50% 45%, rgba(109, 124, 255, 0.14), transparent 55%);
      min-height: 100vh;
      line-height: 1.6;
      letter-spacing: 0;
      overflow-x: hidden;
    }

    body::before{
      content:"";
      position: fixed;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.02), transparent 20%, transparent 80%, rgba(255,255,255,0.02)),
        var(--noise);
      opacity: 0.35;
      pointer-events: none;
      z-index: 0;
    }

    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, textarea, select { font: inherit; }
    button { cursor: pointer; border: 0; }
    :focus-visible { outline: none; box-shadow: var(--ring); border-radius: 12px; }

    .container {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      padding: 14px 0;
      transition: background .25s ease, box-shadow .25s ease, backdrop-filter .25s ease, border-color .25s ease;
    }

    .site-header.is-scrolled {
      background: rgba(8, 14, 25, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(160, 182, 214, 0.16);
      box-shadow: 0 10px 34px rgba(2, 8, 17, 0.28);
    }

    .header-bar {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 12px 16px;
      background: rgba(7, 16, 29, 0.56);
      backdrop-filter: blur(18px);
      border: 1px solid rgba(165, 185, 214, 0.16);
      border-radius: 20px;
      box-shadow: var(--shadow-soft);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
      flex: 0 0 auto;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: var(--grad);
      color: #07101d;
      box-shadow: 0 12px 26px rgba(67, 215, 255, 0.24);
      font-weight: 900;
    }

    .brand span:last-child {
      font-size: 1rem;
      line-height: 1;
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
      flex: 1;
      min-width: 0;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      min-width: 0;
    }

    .site-nav a {
      position: relative;
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--muted);
      border: 1px solid transparent;
      transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
      white-space: nowrap;
      font-size: .95rem;
    }

    .site-nav a:hover {
      color: var(--text);
      border-color: rgba(67, 215, 255, 0.28);
      background: rgba(67, 215, 255, 0.08);
      transform: translateY(-1px);
    }

    .site-nav a[aria-current="page"] {
      color: var(--text);
      background: linear-gradient(135deg, rgba(67,215,255,0.18), rgba(109,124,255,0.18));
      border-color: rgba(67, 215, 255, 0.28);
      box-shadow: 0 10px 24px rgba(67, 215, 255, 0.12);
    }

    .header-tools {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-left: auto;
      flex: 0 0 auto;
    }

    .search-mini {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 280px;
      max-width: 380px;
      flex: 1;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.16);
      border-radius: 999px;
      padding: 8px 12px;
    }

    .search-mini svg { flex: 0 0 auto; color: var(--muted); }
    .search-mini input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--text);
      min-width: 0;
    }
    .search-mini input::placeholder { color: var(--muted-2); }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 16px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 700;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease, opacity .2s ease;
      white-space: nowrap;
      min-height: 44px;
    }

    .btn:hover { transform: translateY(-1px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      background: var(--grad);
      color: #07101d;
      box-shadow: 0 14px 30px rgba(67, 215, 255, 0.18);
    }
    .btn-primary:hover { box-shadow: 0 18px 34px rgba(67, 215, 255, 0.22); }
    .btn-secondary {
      background: rgba(255,255,255,0.04);
      color: var(--text);
      border-color: rgba(165,185,214,0.18);
    }
    .btn-secondary:hover { background: rgba(255,255,255,0.07); border-color: rgba(67,215,255,0.28); }
    .btn-ghost {
      background: transparent;
      color: var(--muted);
      border-color: rgba(165,185,214,0.15);
    }
    .btn-ghost:hover { color: var(--text); border-color: rgba(67,215,255,0.26); background: rgba(67,215,255,0.05); }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(165,185,214,0.16);
      color: var(--text);
    }

    .hero {
      position: relative;
      padding: 26px 0 18px;
    }

    .hero-shell {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(165,185,214,0.16);
      border-radius: 30px;
      background:
        linear-gradient(135deg, rgba(10,17,31,0.88), rgba(8,14,25,0.92)),
        radial-gradient(1000px 520px at 18% 15%, rgba(67,215,255,0.18), transparent 55%),
        radial-gradient(860px 520px at 84% 18%, rgba(255,179,71,0.13), transparent 55%);
      box-shadow: var(--shadow);
      padding: 34px;
    }

    .hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(255,255,255,0.06), transparent 30%),
        linear-gradient(180deg, transparent, rgba(255,255,255,0.03));
      pointer-events:none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
      gap: 28px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(67, 215, 255, 0.10);
      color: #cdefff;
      border: 1px solid rgba(67, 215, 255, 0.18);
      font-size: .92rem;
      margin-bottom: 18px;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(2.2rem, 3.6vw, 4.2rem);
      line-height: 1.08;
      letter-spacing: 0;
      max-width: 11ch;
    }

    .hero p.lead {
      margin: 16px 0 0;
      color: var(--muted);
      font-size: 1.05rem;
      max-width: 62ch;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.14);
      color: #dce8fb;
      font-size: .92rem;
      white-space: nowrap;
    }
    .badge strong {
      color: #fff;
      font-weight: 800;
    }

    .hero-panel {
      position: relative;
      min-height: 100%;
      background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.03));
      border: 1px solid rgba(165,185,214,0.16);
      border-radius: 24px;
      padding: 20px;
      overflow: hidden;
    }

    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(380px 260px at 72% 18%, rgba(67,215,255,0.15), transparent 58%),
        radial-gradient(300px 220px at 18% 82%, rgba(255,179,71,0.12), transparent 58%);
      pointer-events:none;
    }

    .panel-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      position: relative;
      z-index: 1;
      margin-bottom: 16px;
    }

    .panel-top h2 {
      margin: 0;
      font-size: 1.02rem;
    }

    .panel-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(67,215,255,0.12);
      border: 1px solid rgba(67,215,255,0.18);
      color: #d8f6ff;
      font-size: .88rem;
      white-space: nowrap;
    }

    .rank-list {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 12px;
    }

    .rank-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.13);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .rank-item:hover {
      transform: translateY(-2px);
      background: rgba(255,255,255,0.07);
      border-color: rgba(67,215,255,0.22);
    }

    .rank-index {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: rgba(67,215,255,0.14);
      color: #dff8ff;
      font-weight: 900;
      flex: 0 0 auto;
    }

    .rank-text strong {
      display: block;
      font-size: .98rem;
      margin-bottom: 2px;
    }
    .rank-text span {
      display: block;
      color: var(--muted);
      font-size: .9rem;
    }

    .rank-meta {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .mini-pill {
      padding: 7px 9px;
      border-radius: 999px;
      background: rgba(255,255,255,0.05);
      color: #dfe9f8;
      border: 1px solid rgba(165,185,214,0.14);
      font-size: .84rem;
    }

    .mini-pill.good { background: rgba(61,220,151,0.12); border-color: rgba(61,220,151,0.18); color: #d7ffe9; }
    .mini-pill.warn { background: rgba(255,179,71,0.12); border-color: rgba(255,179,71,0.2); color: #ffe5bf; }
    .mini-pill.info { background: rgba(67,215,255,0.12); border-color: rgba(67,215,255,0.18); color: #d7f8ff; }

    .hero-footline {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 18px;
      color: var(--muted);
      font-size: .92rem;
      position: relative;
      z-index: 1;
    }

    .section {
      padding: 24px 0;
      position: relative;
      z-index: 1;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 18px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(1.45rem, 2vw, 2rem);
      line-height: 1.18;
    }
    .section-head p {
      margin: 0;
      color: var(--muted);
      max-width: 58ch;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 18px;
    }

    .feature-card {
      padding: 22px;
      background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
      border: 1px solid rgba(165,185,214,0.14);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
      min-height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-3px);
      border-color: rgba(67,215,255,0.24);
      box-shadow: 0 24px 50px rgba(2, 8, 17, 0.24);
      background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.05));
    }

    .feature-card .icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      background: rgba(67,215,255,0.12);
      color: #d9f6ff;
      border: 1px solid rgba(67,215,255,0.18);
    }

    .feature-card:nth-child(2) .icon {
      background: rgba(109,124,255,0.12);
      border-color: rgba(109,124,255,0.18);
    }

    .feature-card:nth-child(3) .icon {
      background: rgba(255,179,71,0.12);
      border-color: rgba(255,179,71,0.18);
    }

    .feature-card h3 {
      margin: 0 0 8px;
      font-size: 1.1rem;
    }

    .feature-card p {
      margin: 0;
      color: var(--muted);
    }

    .feature-tag {
      display: inline-flex;
      align-items: center;
      margin-top: 16px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,0.05);
      color: #e7f1ff;
      border: 1px solid rgba(165,185,214,0.14);
      font-size: .84rem;
    }

    .demo-layout {
      display: grid;
      grid-template-columns: minmax(0,1.05fr) minmax(300px, .95fr);
      gap: 18px;
      align-items: stretch;
    }

    .demo-screen, .demo-side {
      background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
      border: 1px solid rgba(165,185,214,0.14);
      border-radius: 24px;
      padding: 20px;
      box-shadow: var(--shadow-soft);
    }

    .demo-screen {
      display: grid;
      gap: 14px;
    }

    .demo-screen-head {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      flex-wrap: wrap;
    }

    .segmented {
      display: inline-flex;
      gap: 8px;
      flex-wrap: wrap;
      background: rgba(255,255,255,0.04);
      padding: 6px;
      border-radius: 999px;
      border: 1px solid rgba(165,185,214,0.12);
    }

    .segmented .chip {
      padding: 9px 12px;
      border-radius: 999px;
      color: var(--muted);
      border: 1px solid transparent;
      background: transparent;
      transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
      font-size: .9rem;
    }

    .segmented .chip.active,
    .segmented .chip:hover {
      background: rgba(67,215,255,0.12);
      color: var(--text);
      border-color: rgba(67,215,255,0.18);
      transform: translateY(-1px);
    }

    .preview-list {
      display: grid;
      gap: 12px;
    }

    .preview-item {
      display: grid;
      grid-template-columns: 140px minmax(0,1fr) auto;
      gap: 14px;
      align-items: center;
      padding: 14px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.13);
      border-radius: 18px;
    }

    .preview-thumb {
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(67,215,255,0.22), rgba(109,124,255,0.14)),
        linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.04));
      border: 1px solid rgba(67,215,255,0.18);
      height: 80px;
      position: relative;
      overflow: hidden;
    }

    .preview-thumb::before,
    .preview-thumb::after{
      content:"";
      position:absolute;
      left: 12px;
      right: 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.65);
    }
    .preview-thumb::before {
      top: 16px;
      height: 10px;
      width: 72%;
    }
    .preview-thumb::after {
      top: 38px;
      height: 8px;
      width: 54%;
      opacity: 0.68;
    }

    .preview-title {
      display: grid;
      gap: 6px;
    }
    .preview-title strong { font-size: 1.02rem; }
    .preview-title span { color: var(--muted); font-size: .92rem; }

    .preview-meta {
      display: grid;
      gap: 10px;
      justify-items: end;
      text-align: right;
    }

    .status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(61,220,151,0.12);
      color: #d5ffe8;
      border: 1px solid rgba(61,220,151,0.18);
      font-size: .84rem;
      white-space: nowrap;
    }

    .status.warn { background: rgba(255,179,71,0.12); color: #ffe6c0; border-color: rgba(255,179,71,0.18); }
    .status.info { background: rgba(67,215,255,0.12); color: #dff8ff; border-color: rgba(67,215,255,0.18); }

    .demo-side {
      display: grid;
      gap: 16px;
    }

    .side-block {
      padding: 16px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(165,185,214,0.12);
      border-radius: 18px;
    }

    .side-block h3 {
      margin: 0 0 10px;
      font-size: 1.02rem;
    }

    .side-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .side-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,0.04);
      color: var(--muted);
      border: 1px solid transparent;
    }
    .side-list li strong { color: var(--text); }
    .dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      flex: 0 0 auto;
      box-shadow: 0 0 0 4px rgba(255,255,255,0.04);
    }
    .dot.cyan { background: var(--primary); }
    .dot.indigo { background: var(--primary-2); }
    .dot.amber { background: var(--accent); }
    .dot.green { background: var(--success); }

    .filters {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      margin-bottom: 16px;
    }

    .filter-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex: 1 1 540px;
    }

    .filter {
      padding: 9px 12px;
      border-radius: 999px;
      border: 1px solid rgba(165,185,214,0.14);
      background: rgba(255,255,255,0.04);
      color: var(--muted);
      transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
      white-space: nowrap;
      font-size: .9rem;
    }

    .filter:hover,
    .filter.active {
      background: rgba(67,215,255,0.12);
      color: var(--text);
      border-color: rgba(67,215,255,0.18);
      transform: translateY(-1px);
    }

    .search-bar {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 1 1 320px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.14);
      border-radius: 18px;
      padding: 12px 14px;
    }

    .search-bar svg { color: var(--muted); flex: 0 0 auto; }
    .search-bar input {
      flex: 1;
      min-width: 0;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--text);
    }
    .search-bar input::placeholder { color: var(--muted-2); }

    .resource-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 16px;
    }

    .resource-card {
      display: grid;
      gap: 14px;
      padding: 18px;
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
      border: 1px solid rgba(165,185,214,0.14);
      box-shadow: var(--shadow-soft);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
      min-height: 100%;
    }

    .resource-card:hover {
      transform: translateY(-3px);
      border-color: rgba(67,215,255,0.24);
      box-shadow: 0 24px 48px rgba(2, 8, 17, 0.26);
    }

    .resource-image {
      height: 168px;
      border-radius: 18px;
      overflow: hidden;
      position: relative;
      background:
        linear-gradient(135deg, rgba(67,215,255,0.24), rgba(109,124,255,0.18)),
        linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05));
      border: 1px solid rgba(67,215,255,0.16);
    }

    .resource-image::before{
      content:"";
      position:absolute;
      inset: 16px;
      border-radius: 14px;
      background:
        linear-gradient(180deg, rgba(7,16,29,0.92), rgba(7,16,29,0.68)),
        linear-gradient(135deg, transparent, rgba(255,255,255,0.05));
      border: 1px solid rgba(255,255,255,0.08);
    }

    .resource-image::after{
      content:"字幕 · 编码 · 状态";
      position:absolute;
      left: 28px;
      top: 28px;
      color: rgba(231,242,255,0.84);
      font-weight: 800;
      letter-spacing: 0;
      z-index: 1;
    }

    .resource-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: start;
    }

    .resource-top h3 {
      margin: 0;
      font-size: 1.08rem;
      line-height: 1.35;
    }

    .resource-top .mini-pill { align-self: start; }

    .resource-card p {
      margin: 0;
      color: var(--muted);
      font-size: .96rem;
    }

    .resource-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .resource-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: auto;
    }

    .resource-actions .btn {
      flex: 1 1 120px;
      justify-content: center;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap: 14px;
    }

    .stat {
      padding: 18px;
      border-radius: 20px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.14);
      box-shadow: var(--shadow-soft);
    }

    .stat strong {
      display: block;
      font-size: 1.6rem;
      line-height: 1;
      margin-bottom: 8px;
      background: var(--grad);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      font-weight: 900;
    }
    .stat span {
      display: block;
      color: var(--muted);
      font-size: .92rem;
    }

    .quotes {
      display: grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 16px;
      margin-top: 16px;
    }

    .quote {
      padding: 18px;
      border-radius: 18px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(165,185,214,0.12);
    }
    .quote .person {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }
    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(67,215,255,0.24), rgba(255,179,71,0.18));
      border: 1px solid rgba(67,215,255,0.18);
    }
    .quote strong { display: block; }
    .quote span { color: var(--muted); font-size: .9rem; }
    .quote p { margin: 0; color: #dbe7f8; }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border-radius: 18px;
      border: 1px solid rgba(165,185,214,0.14);
      background: rgba(255,255,255,0.05);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      padding: 18px 18px;
      background: transparent;
      color: var(--text);
      text-align: left;
      font-weight: 700;
    }

    .faq-question svg {
      color: var(--muted);
      flex: 0 0 auto;
      transition: transform .2s ease;
    }

    .faq-item[aria-expanded="true"] .faq-question svg {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
    }

    .faq-item[aria-expanded="true"] .faq-answer {
      display: block;
    }

    .cta-strip {
      margin: 24px 0 26px;
    }

    .cta-box {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      flex-wrap: wrap;
      padding: 22px;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(67,215,255,0.14), rgba(109,124,255,0.12), rgba(255,179,71,0.10));
      border: 1px solid rgba(165,185,214,0.16);
      box-shadow: var(--shadow);
    }

    .cta-box h2 {
      margin: 0 0 8px;
      font-size: 1.35rem;
    }
    .cta-box p {
      margin: 0;
      color: var(--muted);
      max-width: 60ch;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .footer {
      padding: 18px 0 96px;
      position: relative;
      z-index: 1;
    }

    .footer-inner {
      padding-top: 8px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 18px;
      padding: 24px 0 18px;
      border-top: 1px solid rgba(165,185,214,0.14);
    }

    .footer-brand p {
      color: var(--muted);
      margin: 14px 0 0;
      max-width: 42ch;
    }

    .footer-links h3 {
      margin: 0 0 14px;
      font-size: 1rem;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      align-content: start;
    }

    .footer-links a {
      color: var(--muted);
      width: fit-content;
      transition: color .2s ease, transform .2s ease;
    }
    .footer-links a:hover {
      color: var(--text);
      transform: translateX(2px);
    }

    .footer-meta {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      padding-top: 16px;
      border-top: 1px solid rgba(165,185,214,0.14);
      color: var(--muted-2);
      font-size: .92rem;
    }

    .bottom-cta {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 18px;
      z-index: 55;
      pointer-events: none;
    }

    .bottom-cta .bar {
      width: min(100% - 24px, 1180px);
      margin: 0 auto;
      pointer-events: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 12px 14px;
      border-radius: 22px;
      background: rgba(8, 14, 25, 0.86);
      border: 1px solid rgba(165,185,214,0.18);
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow);
    }

    .bottom-cta .bar p {
      margin: 0;
      color: var(--muted);
    }

    .bottom-cta .bar strong {
      color: var(--text);
    }

    .bottom-cta .bar .actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .backdrop {
      position: fixed;
      inset: 0;
      background: rgba(4, 9, 16, 0.48);
      opacity: 0;
      visibility: hidden;
      transition: opacity .22s ease, visibility .22s ease;
      z-index: 40;
    }

    .backdrop.show {
      opacity: 1;
      visibility: visible;
    }

    .mobile-panel {
      display: none;
    }

    @media (max-width: 1100px) {
      .hero-grid,
      .demo-layout {
        grid-template-columns: 1fr;
      }
      .feature-grid,
      .resource-grid,
      .stats-grid,
      .quotes,
      .footer-grid {
        grid-template-columns: repeat(2, minmax(0,1fr));
      }
      .search-mini { min-width: 220px; }
    }

    @media (max-width: 820px) {
      .header-bar {
        flex-wrap: wrap;
      }
      .nav-wrap {
        width: 100%;
        order: 3;
      }
      .search-mini {
        min-width: 0;
        flex: 1 1 100%;
      }
      .feature-grid,
      .resource-grid,
      .stats-grid,
      .quotes,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .preview-item {
        grid-template-columns: 1fr;
      }
      .preview-meta {
        justify-items: start;
        text-align: left;
      }
      .section-head,
      .cta-box {
        align-items: start;
      }
      .bottom-cta .bar {
        flex-direction: column;
        align-items: stretch;
      }
      .bottom-cta .bar .actions {
        justify-content: stretch;
      }
      .bottom-cta .bar .actions .btn {
        flex: 1 1 0;
      }
    }

    @media (max-width: 640px) {
      .site-header {
        padding: 10px 0;
      }
      .header-bar {
        padding: 10px 12px;
        border-radius: 18px;
      }
      .brand span:last-child {
        font-size: .96rem;
      }
      .site-nav {
        display: none;
      }
      .menu-btn {
        display: inline-grid;
        place-items: center;
      }
      .search-mini {
        min-width: 0;
        padding: 8px 12px;
      }
      .hero-shell {
        padding: 22px;
        border-radius: 24px;
      }
      .hero h1 {
        max-width: none;
        font-size: 2rem;
      }
      .hero p.lead,
      .section-head p,
      .cta-box p {
        font-size: .98rem;
      }
      .resource-image {
        height: 144px;
      }
      .cta-actions,
      .hero-actions {
        width: 100%;
      }
      .btn {
        width: 100%;
      }
      .bottom-cta {
        bottom: 12px;
      }
      .bottom-cta .bar {
        width: min(100% - 16px, 1180px);
      }
      .footer {
        padding-bottom: 148px;
      }
    }

    body.menu-open {
      overflow: hidden;
    }

    .mobile-panel {
      position: fixed;
      inset: 78px 12px auto 12px;
      z-index: 60;
      padding: 14px;
      border-radius: 22px;
      background: rgba(8, 14, 25, 0.95);
      border: 1px solid rgba(165,185,214,0.16);
      box-shadow: var(--shadow);
      display: none;
    }

    .mobile-panel.show {
      display: grid;
      gap: 10px;
    }

    .mobile-panel a,
    .mobile-panel .m-btn {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px 14px;
      border-radius: 16px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(165,185,214,0.12);
      color: var(--text);
      font-weight: 700;
    }

    .mobile-panel .m-btn {
      background: var(--grad);
      color: #07101d;
    }