/* roulang page: index */
:root{
      --bg:#06111f;
      --bg2:#07182c;
      --panel:rgba(15,23,42,.66);
      --panel-strong:rgba(15,23,42,.86);
      --line:rgba(148,163,184,.22);
      --line-strong:rgba(34,211,238,.48);
      --text:#f8fafc;
      --muted:#cbd5e1;
      --subtle:#94a3b8;
      --cyan:#22d3ee;
      --sky:#38bdf8;
      --violet:#a78bfa;
      --magenta:#d946ef;
      --amber:#fbbf24;
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --shadow:0 24px 80px rgba(0,0,0,.38);
      --glow:0 0 42px rgba(34,211,238,.18);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(34,211,238,.18), transparent 32%),
        radial-gradient(circle at 82% 16%, rgba(167,139,250,.18), transparent 34%),
        radial-gradient(circle at 50% 85%, rgba(56,189,248,.10), transparent 38%),
        linear-gradient(180deg,#06111f 0%,#07182c 46%,#06111f 100%);
      min-height:100vh;
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(148,163,184,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.05) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.82),transparent 88%);
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(115deg, transparent 0 30%, rgba(34,211,238,.05) 38%, transparent 46% 100%),
        radial-gradient(circle at 70% 58%, rgba(217,70,239,.08), transparent 30%);
      z-index:-1;
      animation:ambientMove 12s ease-in-out infinite alternate;
    }
    @keyframes ambientMove{from{transform:translate3d(0,0,0)}to{transform:translate3d(-18px,14px,0)}}
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(34,211,238,.34);color:#fff}
    ::-webkit-scrollbar{width:10px;height:10px}
    ::-webkit-scrollbar-track{background:#07182c}
    ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(34,211,238,.7),rgba(167,139,250,.55));border-radius:999px}
    .site-container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .glass{
      background:linear-gradient(135deg,rgba(15,23,42,.76),rgba(15,23,42,.42));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      backdrop-filter:blur(20px);
      -webkit-backdrop-filter:blur(20px);
    }
    .glass-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-md);
      background:linear-gradient(145deg,rgba(15,23,42,.72),rgba(15,23,42,.44));
      border:1px solid var(--line);
      box-shadow:0 18px 55px rgba(0,0,0,.25);
      transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
    }
    .glass-card:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.08) 35%,transparent 55%);
      transform:translateX(-120%);
      transition:transform .65s ease;
      pointer-events:none;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.46);
      box-shadow:0 22px 70px rgba(0,0,0,.32),0 0 36px rgba(34,211,238,.12);
      background:linear-gradient(145deg,rgba(15,23,42,.82),rgba(15,23,42,.52));
    }
    .glass-card:hover:before{transform:translateX(120%)}
    .section{padding:92px 0}
    .section-tight{padding:70px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#bff4ff;
      font-size:13px;
      letter-spacing:.06em;
      border:1px solid rgba(34,211,238,.32);
      background:rgba(34,211,238,.08);
    }
    .eyebrow:before{
      content:"";
      width:7px;height:7px;border-radius:99px;
      background:var(--cyan);
      box-shadow:0 0 16px var(--cyan);
    }
    .gradient-text{
      background:linear-gradient(92deg,#fff 0%,#bff4ff 38%,#a78bfa 76%,#fff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease,background .24s ease,color .24s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#03111e;
      background:linear-gradient(135deg,#22d3ee,#38bdf8 52%,#a78bfa);
      box-shadow:0 14px 36px rgba(34,211,238,.28), inset 0 1px 0 rgba(255,255,255,.45);
    }
    .btn-secondary{
      color:#e2e8f0;
      background:rgba(15,23,42,.42);
      border-color:rgba(148,163,184,.28);
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary:hover{box-shadow:0 18px 46px rgba(34,211,238,.38),0 0 0 1px rgba(255,255,255,.12) inset}
    .btn-secondary:hover{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.09);color:#fff}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(34,211,238,.5);
      outline-offset:3px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      line-height:1;
      color:#dbeafe;
      background:rgba(148,163,184,.10);
      border:1px solid rgba(148,163,184,.18);
    }
    .nav-shell{
      position:sticky;
      top:16px;
      z-index:50;
      padding:0 0;
    }
    .nav-panel{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:12px;
      border-radius:24px;
      background:rgba(6,17,31,.72);
      border:1px solid rgba(148,163,184,.22);
      box-shadow:0 18px 60px rgba(0,0,0,.35);
      backdrop-filter:blur(22px);
      -webkit-backdrop-filter:blur(22px);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      padding:8px 10px;
      border-radius:18px;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.9),transparent 16%),linear-gradient(135deg,#22d3ee,#1e40af 54%,#a78bfa);
      box-shadow:0 0 28px rgba(34,211,238,.34);
      color:#06111f;font-weight:900;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-text strong{font-size:15px;max-width:245px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .brand-text span{font-size:12px;color:var(--subtle)}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 13px;
      border-radius:16px;
      color:#cbd5e1;
      font-size:14px;
      border:1px solid transparent;
      background:rgba(15,23,42,.24);
      transition:background .24s ease,border-color .24s ease,color .24s ease,transform .24s ease;
    }
    .nav-link .dot{
      width:7px;height:7px;border-radius:999px;
      background:rgba(148,163,184,.55);
      transition:background .24s ease,box-shadow .24s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff;
      background:rgba(34,211,238,.10);
      border-color:rgba(34,211,238,.32);
      transform:translateY(-1px);
    }
    .nav-link:hover .dot,.nav-link.active .dot{background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
    .menu-toggle{display:none}
    .hero{
      position:relative;
      padding:78px 0 34px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.75fr);
      gap:34px;
      align-items:center;
    }
    .hero h1{
      font-size:clamp(36px,5.1vw,64px);
      line-height:1.08;
      letter-spacing:-.055em;
      margin:18px 0 22px;
    }
    .hero-sub{
      max-width:720px;
      color:#d6e4f4;
      font-size:18px;
      line-height:1.85;
    }
    .meta-pills{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 32px}
    .meta-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 12px;border-radius:999px;
      color:#dbeafe;background:rgba(15,23,42,.56);
      border:1px solid rgba(148,163,184,.22);
      font-size:14px;
    }
    .meta-pill b{color:#67e8f9;font-weight:800}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .panel-orbit{
      position:absolute;
      width:520px;height:520px;border:1px solid rgba(34,211,238,.12);
      border-radius:50%;
      right:-180px;top:100px;
      pointer-events:none;
    }
    .signup-panel{
      border-radius:32px;
      padding:22px;
      background:
        radial-gradient(circle at 30% 0%,rgba(34,211,238,.16),transparent 34%),
        linear-gradient(145deg,rgba(15,23,42,.82),rgba(15,23,42,.52));
      border:1px solid rgba(148,163,184,.22);
      box-shadow:0 28px 90px rgba(0,0,0,.42),0 0 80px rgba(34,211,238,.10);
      backdrop-filter:blur(24px);
    }
    .status-row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
    .status-badge{
      display:inline-flex;align-items:center;gap:8px;
      color:#ecfeff;background:rgba(34,211,238,.10);
      border:1px solid rgba(34,211,238,.28);
      padding:7px 10px;border-radius:999px;font-size:13px;
    }
    .progress{
      height:10px;border-radius:999px;background:rgba(148,163,184,.16);overflow:hidden;
      border:1px solid rgba(148,163,184,.14);
    }
    .progress span{display:block;height:100%;width:68%;border-radius:inherit;background:linear-gradient(90deg,#22d3ee,#a78bfa);box-shadow:0 0 18px rgba(34,211,238,.4)}
    .ticket{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:14px;border-radius:18px;background:rgba(2,6,23,.28);
      border:1px solid rgba(148,163,184,.18);
      margin-top:12px;
    }
    .ticket strong{display:block;font-size:16px}
    .ticket span{display:block;color:var(--subtle);font-size:13px;margin-top:2px}
    .visual-frame{
      min-height:190px;
      border-radius:24px;
      margin:18px 0;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 30% 22%,rgba(34,211,238,.34),transparent 22%),
        radial-gradient(circle at 78% 28%,rgba(167,139,250,.30),transparent 20%),
        linear-gradient(135deg,rgba(30,64,175,.32),rgba(2,6,23,.56));
      border:1px solid rgba(148,163,184,.20);
    }
    .visual-frame:before{
      content:"";
      position:absolute;
      left:50%;bottom:-18px;
      width:168px;height:168px;
      transform:translateX(-50%);
      border-radius:48% 48% 18% 18%;
      background:linear-gradient(180deg,rgba(226,232,240,.24),rgba(34,211,238,.08));
      filter:blur(.1px);
      opacity:.82;
    }
    .visual-frame:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
      transform:skewX(-18deg) translateX(-130%);
      animation:scan 4.8s ease-in-out infinite;
    }
    @keyframes scan{0%,42%{transform:skewX(-18deg) translateX(-130%)}65%,100%{transform:skewX(-18deg) translateX(130%)}}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .section-head h2{font-size:clamp(28px,3.8vw,42px);line-height:1.2;letter-spacing:-.035em;margin:0}
    .section-head p{color:var(--muted);max-width:560px;margin:10px 0 0}
    .timeline{position:relative;display:grid;gap:18px}
    .timeline:before{
      content:"";
      position:absolute;left:50%;top:8px;bottom:8px;width:1px;
      background:linear-gradient(180deg,transparent,rgba(34,211,238,.55),rgba(167,139,250,.4),transparent);
    }
    .timeline-item{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
    .timeline-item:nth-child(even) .timeline-card{grid-column:2}
    .timeline-item:nth-child(even) .time-node{grid-column:1;grid-row:1;justify-self:end;text-align:right}
    .timeline-card{padding:22px}
    .time-node{color:#cbd5e1;position:relative}
    .time-node b{display:block;color:#67e8f9;font-size:28px;line-height:1}
    .time-node span{font-size:13px;color:var(--subtle)}
    .timeline-card h3,.highlight-card h3,.ticket-card h3{font-size:22px;margin:0 0 10px}
    .check-list{display:grid;gap:8px;margin:14px 0 0;padding:0;list-style:none;color:#cbd5e1}
    .check-list li{display:flex;gap:9px;align-items:flex-start}
    .check-list li:before{content:"";width:7px;height:7px;border-radius:999px;background:var(--cyan);box-shadow:0 0 12px var(--cyan);margin-top:10px;flex:0 0 auto}
    .highlight-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .highlight-stack{display:grid;gap:18px}
    .highlight-card{padding:24px;min-height:210px}
    .highlight-card.large{min-height:438px;display:flex;flex-direction:column;justify-content:space-between}
    .iconbox{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(167,139,250,.16));
      border:1px solid rgba(34,211,238,.24);
      color:#67e8f9;
      margin-bottom:18px;
    }
    .stat-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:20px;
    }
    .stat-card{padding:18px;border-radius:18px;background:rgba(15,23,42,.52);border:1px solid rgba(148,163,184,.18)}
    .stat-card b{display:block;font-size:28px;color:#67e8f9;line-height:1.15}
    .stat-card span{font-size:13px;color:var(--subtle)}
    .ticket-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .ticket-card{padding:24px;display:flex;flex-direction:column;min-height:390px}
    .ticket-card.recommend{
      border-color:rgba(34,211,238,.55);
      box-shadow:0 22px 70px rgba(0,0,0,.34),0 0 46px rgba(34,211,238,.17);
    }
    .ticket-card .topline{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:16px}
    .ticket-card p{color:var(--muted);margin:0 0 16px}
    .ticket-card .btn{margin-top:auto}
    .quote-panel{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:20px;
      align-items:stretch;
    }
    .quote-mark{
      padding:28px;
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(34,211,238,.13),rgba(167,139,250,.10));
      border:1px solid rgba(34,211,238,.24);
    }
    .quote-mark b{font-size:42px;color:#67e8f9;line-height:1}
    .quote-mark p{font-size:20px;color:#e2e8f0;margin:14px 0 0;line-height:1.7}
    .proof-list{display:grid;gap:14px}
    .proof-item{display:flex;gap:14px;padding:18px;border-radius:20px;background:rgba(15,23,42,.52);border:1px solid rgba(148,163,184,.18)}
    .proof-item .num{width:36px;height:36px;border-radius:13px;display:grid;place-items:center;background:rgba(34,211,238,.10);color:#67e8f9;font-weight:900;flex:0 0 auto}
    .cta-panel{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:28px;
      padding:30px;
      border-radius:32px;
      background:
        radial-gradient(circle at 10% 10%,rgba(34,211,238,.18),transparent 32%),
        radial-gradient(circle at 90% 25%,rgba(167,139,250,.16),transparent 34%),
        rgba(15,23,42,.66);
      border:1px solid rgba(148,163,184,.24);
      box-shadow:var(--shadow);
      backdrop-filter:blur(22px);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:14px;color:#dbeafe;font-weight:700}
    .field input,.field select,.field textarea{
      width:100%;
      color:#fff;
      background:rgba(2,6,23,.30);
      border:1px solid rgba(148,163,184,.26);
      border-radius:16px;
      padding:13px 14px;
      transition:border-color .24s ease,box-shadow .24s ease,background .24s ease;
      outline:none;
    }
    .field textarea{min-height:104px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#64748b}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:rgba(34,211,238,.66);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
      background:rgba(2,6,23,.42);
    }
    .notice{
      display:flex;gap:10px;align-items:flex-start;
      padding:12px 14px;border-radius:18px;
      color:#fde68a;background:rgba(251,191,36,.08);
      border:1px solid rgba(251,191,36,.22);
      font-size:13px;line-height:1.6;
    }
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    details.faq{
      border-radius:20px;
      background:rgba(15,23,42,.54);
      border:1px solid rgba(148,163,184,.18);
      overflow:hidden;
      transition:border-color .24s ease,background .24s ease;
    }
    details.faq:hover,details.faq[open]{border-color:rgba(34,211,238,.38);background:rgba(15,23,42,.68)}
    details.faq summary{
      list-style:none;
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      font-weight:800;
      cursor:pointer;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary:after{
      content:"+";
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      color:#67e8f9;background:rgba(34,211,238,.10);
      flex:0 0 auto;
    }
    details.faq[open] summary:after{content:"−"}
    details.faq p{margin:0;padding:0 20px 20px;color:#cbd5e1;border-top:1px solid rgba(148,163,184,.14);padding-top:16px}
    .footer{
      position:relative;
      padding:54px 0 28px;
      background:rgba(2,6,23,.38);
      border-top:1px solid rgba(148,163,184,.16);
      margin-top:70px;
    }
    .footer:before{
      content:"";
      position:absolute;left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,rgba(34,211,238,.75),rgba(167,139,250,.55),transparent);
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .7fr .8fr .9fr;gap:28px}
    .footer h3{font-size:15px;margin:0 0 14px;color:#e2e8f0}
    .footer p,.footer li,.footer a{color:#94a3b8;font-size:14px}
    .footer a:hover{color:#67e8f9}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(148,163,184,.14);
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      color:#64748b;font-size:13px;
    }
    .mobile-menu{
      display:none;
      margin-top:10px;
      padding:10px;
      border-radius:20px;
      background:rgba(6,17,31,.86);
      border:1px solid rgba(148,163,184,.20);
      backdrop-filter:blur(20px);
    }
    @media (max-width:1024px){
      .site-container{width:min(100% - 32px,var(--container))}
      .nav-links,.nav-panel>.btn{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-menu.open{display:grid;gap:8px}
      .mobile-menu .nav-link{justify-content:flex-start;width:100%}
      .hero-grid,.cta-panel,.quote-panel{grid-template-columns:1fr}
      .hero{padding-top:58px}
      .signup-panel{max-width:680px}
      .timeline:before{left:13px}
      .timeline-item,.timeline-item:nth-child(even){grid-template-columns:1fr;gap:12px;padding-left:34px}
      .timeline-item .timeline-card,.timeline-item:nth-child(even) .timeline-card{grid-column:auto}
      .timeline-item .time-node,.timeline-item:nth-child(even) .time-node{grid-column:auto;grid-row:auto;justify-self:start;text-align:left}
      .time-node:before{content:"";position:absolute;left:-28px;top:8px;width:13px;height:13px;border-radius:99px;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}
      .highlight-grid,.footer-grid{grid-template-columns:1fr 1fr}
      .ticket-grid{grid-template-columns:1fr}
      .ticket-card{min-height:auto}
    }
    @media (max-width:768px){
      .section{padding:64px 0}
      .section-tight{padding:54px 0}
      .nav-shell{top:10px}
      .nav-panel{border-radius:20px;padding:9px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text strong{max-width:178px;font-size:14px}
      .brand-text span{display:none}
      .hero h1{letter-spacing:-.035em}
      .hero-sub{font-size:16px}
      .hero-actions .btn{width:100%}
      .meta-pills{gap:8px}
      .meta-pill{font-size:13px}
      .section-head{display:block}
      .highlight-grid,.stat-strip,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .highlight-card.large{min-height:300px}
      .form-grid{grid-template-columns:1fr}
      .cta-panel{padding:22px;border-radius:26px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 24px,var(--container))}
      .hero{padding-top:42px}
      .signup-panel{padding:16px;border-radius:26px}
      .ticket{align-items:flex-start;flex-direction:column}
      .status-row{align-items:flex-start;flex-direction:column}
      .panel-orbit{display:none}
    }

/* roulang page: category1 */
:root{
      --bg:#06111f;
      --bg-2:#07182c;
      --panel:rgba(15,23,42,.68);
      --panel-2:rgba(8,18,35,.78);
      --line:rgba(148,163,184,.22);
      --line-strong:rgba(34,211,238,.46);
      --text:#f8fafc;
      --muted:#cbd5e1;
      --weak:#94a3b8;
      --cyan:#22d3ee;
      --sky:#38bdf8;
      --violet:#a78bfa;
      --pink:#d946ef;
      --amber:#fbbf24;
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --shadow:0 24px 80px rgba(0,0,0,.38);
      --glow:0 0 34px rgba(34,211,238,.26);
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%,rgba(56,189,248,.28),transparent 32%),
        radial-gradient(circle at 78% 12%,rgba(167,139,250,.22),transparent 34%),
        radial-gradient(circle at 52% 82%,rgba(217,70,239,.12),transparent 32%),
        linear-gradient(180deg,#04101f 0%,#06111f 38%,#081527 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(148,163,184,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(148,163,184,.08) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.18));
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:radial-gradient(circle at center,transparent 0,rgba(2,6,23,.22) 56%,rgba(2,6,23,.7) 100%);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(34,211,238,.35);color:#fff}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
    .site-container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
    .section{padding:92px 0}
    .section-tight{padding:64px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(34,211,238,.28);
      background:rgba(34,211,238,.08);
      border-radius:999px;
      color:#cffafe;
      font-size:13px;
      letter-spacing:.08em;
      font-weight:700;
    }
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 16px var(--cyan)}
    h1,h2,h3,p{margin:0}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.08;letter-spacing:-.045em}
    h2{font-size:clamp(28px,3.4vw,42px);line-height:1.18;letter-spacing:-.035em}
    h3{font-size:clamp(19px,2vw,24px);line-height:1.28}
    p{color:var(--muted)}
    .gradient-text{background:linear-gradient(90deg,#f8fafc 0%,#67e8f9 48%,#c4b5fd 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .nav-shell{
      position:sticky;
      top:0;
      z-index:50;
      padding:16px 0;
      transition:.25s ease;
    }
    .nav-panel{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:10px;
      border:1px solid rgba(148,163,184,.22);
      border-radius:24px;
      background:rgba(6,17,31,.76);
      backdrop-filter:blur(22px);
      box-shadow:0 18px 60px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.06);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:260px;
      padding:8px 10px;
      border-radius:18px;
      transition:.22s ease;
    }
    .brand:hover{background:rgba(255,255,255,.05)}
    .brand-mark{
      display:grid;
      place-items:center;
      width:42px;
      height:42px;
      border-radius:15px;
      color:#00111a;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 28px rgba(34,211,238,.36);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{font-size:15px;letter-spacing:-.02em}
    .brand-text span{font-size:12px;color:var(--weak);margin-top:3px}
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      padding:5px;
      border:1px solid rgba(148,163,184,.14);
      border-radius:18px;
      background:rgba(15,23,42,.38);
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:40px;
      padding:9px 14px;
      border:1px solid transparent;
      border-radius:14px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-link .dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:rgba(148,163,184,.5);
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff;
      border-color:rgba(34,211,238,.34);
      background:rgba(34,211,238,.1);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .nav-link:hover .dot,.nav-link.active .dot{background:var(--cyan);box-shadow:0 0 16px var(--cyan)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.25);
      font-weight:800;
      font-size:14px;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#031520;
      border-color:rgba(34,211,238,.64);
      background:linear-gradient(135deg,#22d3ee,#38bdf8 52%,#a78bfa);
      box-shadow:0 14px 34px rgba(34,211,238,.28);
    }
    .btn-primary:hover{box-shadow:0 18px 44px rgba(34,211,238,.4)}
    .btn-secondary{
      color:#e2e8f0;
      background:rgba(15,23,42,.48);
      border-color:rgba(148,163,184,.28);
    }
    .btn-secondary:hover{background:rgba(30,41,59,.72);border-color:rgba(34,211,238,.36);box-shadow:var(--glow)}
    .menu-toggle{display:none}
    .mobile-menu{
      display:none;
      margin-top:10px;
      padding:12px;
      border-radius:22px;
      border:1px solid rgba(148,163,184,.22);
      background:rgba(6,17,31,.88);
      backdrop-filter:blur(20px);
      box-shadow:var(--shadow);
    }
    .mobile-menu.open{display:grid;gap:10px}
    .hero{
      position:relative;
      padding:74px 0 54px;
    }
    .hero:before{
      content:"";
      position:absolute;
      left:50%;
      top:30px;
      width:min(960px,90vw);
      height:360px;
      transform:translateX(-50%);
      background:linear-gradient(90deg,rgba(34,211,238,.16),rgba(167,139,250,.14),rgba(217,70,239,.08));
      filter:blur(44px);
      opacity:.8;
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:34px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:var(--weak);
      font-size:14px;
      margin:18px 0;
    }
    .breadcrumb a{color:#cffafe}
    .breadcrumb span{color:#64748b}
    .hero-copy{
      padding:30px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(148,163,184,.18);
      background:linear-gradient(135deg,rgba(15,23,42,.54),rgba(8,18,35,.35));
      backdrop-filter:blur(16px);
      box-shadow:var(--shadow);
    }
    .hero-copy .lead{font-size:18px;max-width:760px;margin-top:20px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .tag,.filter-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid rgba(148,163,184,.22);
      background:rgba(15,23,42,.52);
      border-radius:999px;
      color:#dbeafe;
      padding:8px 12px;
      font-size:13px;
      font-weight:700;
      transition:.22s ease;
    }
    .tag strong{color:#67e8f9}
    .tag:hover,.filter-chip:hover{border-color:rgba(34,211,238,.48);background:rgba(34,211,238,.1)}
    .filter-chip.active{
      color:#031520;
      background:linear-gradient(135deg,#67e8f9,#a78bfa);
      border-color:transparent;
      box-shadow:0 12px 30px rgba(34,211,238,.24);
    }
    .glass-card{
      border:1px solid rgba(148,163,184,.2);
      background:linear-gradient(145deg,rgba(15,23,42,.66),rgba(15,23,42,.36));
      backdrop-filter:blur(18px);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
      transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease;
      overflow:hidden;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.42);
      box-shadow:0 28px 90px rgba(0,0,0,.44),0 0 40px rgba(34,211,238,.13);
      background:linear-gradient(145deg,rgba(15,23,42,.76),rgba(15,23,42,.44));
    }
    .stat-panel{padding:24px;position:relative}
    .stat-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 74% 8%,rgba(34,211,238,.18),transparent 34%),linear-gradient(135deg,rgba(167,139,250,.08),transparent 55%);
      pointer-events:none;
    }
    .stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}
    .stat-box{
      position:relative;
      padding:18px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(2,6,23,.28);
      overflow:hidden;
    }
    .stat-box b{display:block;font-size:28px;line-height:1;color:#67e8f9;margin-bottom:8px}
    .stat-box span{font-size:13px;color:var(--weak)}
    .cover-card{
      min-height:168px;
      margin-top:18px;
      border-radius:22px;
      border:1px solid rgba(34,211,238,.24);
      background:
        linear-gradient(135deg,rgba(34,211,238,.18),rgba(167,139,250,.16)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 18px);
      position:relative;
      overflow:hidden;
    }
    .cover-card:before{
      content:"";
      position:absolute;
      width:170px;
      height:170px;
      right:22px;
      top:22px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 0 42px rgba(34,211,238,.24),inset 0 0 28px rgba(167,139,250,.16);
    }
    .cover-card:after{
      content:"精选内容面板";
      position:absolute;
      left:22px;
      bottom:20px;
      color:#fff;
      font-size:18px;
      font-weight:900;
      letter-spacing:.04em;
    }
    .filter-bar{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px;
      border-radius:24px;
      border:1px solid rgba(148,163,184,.2);
      background:rgba(15,23,42,.48);
      backdrop-filter:blur(18px);
      overflow-x:auto;
      scrollbar-width:none;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .filter-bar::-webkit-scrollbar{display:none}
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:26px;
      align-items:start;
      margin-top:28px;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:18px;
    }
    .article-card{
      position:relative;
      min-height:100%;
      padding:20px;
      border-radius:24px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.54);
      overflow:hidden;
      transition:.24s ease;
    }
    .article-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.42);
      box-shadow:0 22px 60px rgba(0,0,0,.32),0 0 34px rgba(34,211,238,.12);
    }
    .thumb{
      position:relative;
      min-height:210px;
      border-radius:20px;
      overflow:hidden;
      margin-bottom:18px;
      border:1px solid rgba(148,163,184,.16);
      background:
        radial-gradient(circle at 20% 20%,rgba(34,211,238,.42),transparent 30%),
        radial-gradient(circle at 80% 34%,rgba(167,139,250,.34),transparent 34%),
        linear-gradient(135deg,#0b1f3a,#08111f);
    }
    .thumb.small{min-height:126px}
    .thumb:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:18px;
      background:linear-gradient(135deg,rgba(255,255,255,.08),transparent 58%);
    }
    .thumb:after{
      content:"";
      position:absolute;
      right:22px;
      bottom:18px;
      width:90px;
      height:118px;
      border-radius:52px 52px 18px 18px;
      background:linear-gradient(180deg,rgba(226,232,240,.18),rgba(34,211,238,.08));
      filter:blur(.1px);
      opacity:.72;
    }
    .article-card:hover .thumb{box-shadow:inset 0 0 30px rgba(34,211,238,.16)}
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:12px;
      color:var(--weak);
      font-size:13px;
    }
    .article-title{font-size:22px;font-weight:900;line-height:1.32;letter-spacing:-.02em;margin-bottom:10px}
    .article-card.large .article-title{font-size:28px}
    .article-summary{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .article-action{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:16px;
      color:#67e8f9;
      font-weight:900;
      font-size:14px;
    }
    .article-action:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px var(--cyan);
    }
    .stack-list{display:grid;gap:18px}
    .list-panel{
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .list-item{
      display:grid;
      grid-template-columns:156px minmax(0,1fr);
      gap:18px;
      padding:16px;
      border-radius:22px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.5);
      transition:.22s ease;
    }
    .list-item:hover{border-color:rgba(34,211,238,.38);background:rgba(15,23,42,.68);transform:translateY(-2px)}
    .list-item .thumb{min-height:118px;margin:0;border-radius:18px}
    .sidebar{
      position:sticky;
      top:110px;
      display:grid;
      gap:18px;
    }
    .side-card{padding:22px;border-radius:24px}
    .side-card h3{margin-bottom:12px}
    .side-card p{font-size:15px}
    .mini-list{display:grid;gap:10px;margin-top:16px}
    .mini-list li{
      list-style:none;
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:10px 0;
      border-bottom:1px solid rgba(148,163,184,.14);
      color:var(--muted);
      font-size:14px;
    }
    .mini-list li:last-child{border-bottom:0}
    .mini-list b{color:#e0f2fe}
    .hot-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
    .notice{
      border-color:rgba(251,191,36,.28);
      background:linear-gradient(145deg,rgba(251,191,36,.12),rgba(15,23,42,.56));
    }
    .notice .eyebrow{
      color:#fde68a;
      border-color:rgba(251,191,36,.28);
      background:rgba(251,191,36,.1);
    }
    .notice .eyebrow:before{background:var(--amber);box-shadow:0 0 14px var(--amber)}
    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:28px;
    }
    .process-card{padding:22px;border-radius:24px}
    .step-no{
      display:inline-grid;
      place-items:center;
      width:36px;
      height:36px;
      border-radius:14px;
      margin-bottom:18px;
      background:rgba(34,211,238,.12);
      border:1px solid rgba(34,211,238,.32);
      color:#67e8f9;
      font-weight:900;
    }
    .process-card p{font-size:15px;margin-top:10px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
    details{
      border:1px solid rgba(148,163,184,.18);
      border-radius:22px;
      background:rgba(15,23,42,.5);
      overflow:hidden;
      transition:.22s ease;
    }
    details:hover{border-color:rgba(34,211,238,.34)}
    summary{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      color:#f8fafc;
      font-weight:900;
      cursor:pointer;
      list-style:none;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:#67e8f9;font-size:22px}
    details[open] summary:after{content:"−"}
    details p{padding:0 20px 20px;border-top:1px solid rgba(148,163,184,.12);padding-top:16px;font-size:15px}
    .cta-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      align-items:center;
      gap:24px;
      padding:30px;
      border-radius:30px;
      border:1px solid rgba(34,211,238,.28);
      background:
        radial-gradient(circle at 8% 12%,rgba(34,211,238,.22),transparent 34%),
        linear-gradient(135deg,rgba(15,23,42,.72),rgba(8,18,35,.62));
      box-shadow:var(--shadow),0 0 46px rgba(34,211,238,.12);
    }
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
    .signup-mini{
      margin-top:16px;
      display:grid;
      gap:10px;
    }
    .field{
      width:100%;
      min-height:44px;
      border-radius:14px;
      border:1px solid rgba(148,163,184,.24);
      background:rgba(2,6,23,.34);
      color:#fff;
      padding:11px 13px;
      transition:.22s ease;
    }
    .field::placeholder{color:#64748b}
    .field:focus{border-color:rgba(34,211,238,.7);box-shadow:0 0 0 4px rgba(34,211,238,.12);outline:none}
    .footer{
      position:relative;
      padding:66px 0 26px;
      background:linear-gradient(180deg,rgba(2,6,23,.28),rgba(2,6,23,.84));
      border-top:1px solid rgba(148,163,184,.16);
    }
    .footer:before{
      content:"";
      position:absolute;
      inset:0 0 auto;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(34,211,238,.55),rgba(167,139,250,.45),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .75fr .85fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer h3{font-size:16px;margin-bottom:14px;color:#e0f2fe}
    .footer ul{margin:0;padding:0;display:grid;gap:10px}
    .footer li{list-style:none;color:var(--weak);font-size:14px}
    .footer a{color:var(--weak);transition:.2s ease}
    .footer a:hover{color:#67e8f9}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      margin-top:42px;
      padding-top:20px;
      border-top:1px solid rgba(148,163,184,.14);
      color:#7890a8;
      font-size:13px;
    }
    @media (max-width:1024px){
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .brand{min-width:auto}
      .hero-grid,.content-layout,.feature-grid{grid-template-columns:1fr}
      .sidebar{position:static}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,1180px)}
      .section{padding:66px 0}
      .section-head{display:grid;gap:14px}
      .nav-panel{border-radius:20px}
      .nav-panel>.btn-primary{display:none}
      .brand-text strong{font-size:13px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .hero{padding:42px 0 34px}
      .hero-copy{padding:22px}
      .hero-copy .lead{font-size:16px}
      .stat-row,.faq-grid,.cta-panel{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .list-item{grid-template-columns:1fr}
      .list-item .thumb{min-height:150px}
      .process-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .menu-toggle{padding-inline:14px}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .filter-bar{margin-inline:-4px}
      .article-card.large .article-title{font-size:23px}
      .article-title{font-size:20px}
      .thumb{min-height:170px}
      .cta-panel{padding:22px}
    }