/* roulang page: index */
:root{
      --ink:#07121d;
      --ink-soft:#0d1b2a;
      --surface:#102536;
      --surface-2:#142d40;
      --surface-3:#19374b;
      --line:rgba(166,223,235,.17);
      --line-strong:rgba(107,225,232,.42);
      --text:#edf8fa;
      --muted:#aabcc5;
      --dim:#718792;
      --cyan:#62e3e5;
      --cyan-deep:#1eaeb8;
      --coral:#ff8f75;
      --warm:#ffd8ab;
      --success:#98dca6;
      --danger:#ff8f75;
      --radius:8px;
      --shadow:0 18px 45px rgba(0,0,0,.23);
      --container:1220px;
      --nav-height:76px;
      --transition:180ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth;background:var(--ink)}
    body{
      margin:0;
      background:var(--ink);
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      overflow-x:hidden;
    }
    body::selection{background:rgba(98,227,229,.3);color:#fff}
    a{color:inherit;text-decoration:none;transition:color var(--transition),transform var(--transition),border-color var(--transition),background var(--transition)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(98,227,229,.8);outline-offset:3px}
    .grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
    .site-shell{overflow:hidden}

    .site-header{
      position:fixed;
      z-index:99;
      top:0;
      left:0;
      width:100%;
      min-height:var(--nav-height);
      border-bottom:1px solid transparent;
      background:rgba(7,18,29,.55);
      backdrop-filter:blur(14px);
      transition:background var(--transition),border-color var(--transition),box-shadow var(--transition);
    }
    .site-header.is-scrolled{
      background:rgba(7,18,29,.94);
      border-color:var(--line);
      box-shadow:0 10px 30px rgba(0,0,0,.18);
    }
    .nav-wrap{
      min-height:var(--nav-height);
      display:flex;
      align-items:center;
      gap:20px;
    }
    .brand{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--text);
      font-weight:800;
      font-size:18px;
      line-height:1.2;
      white-space:nowrap;
    }
    .brand-mark{
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      border:1px solid rgba(98,227,229,.65);
      border-radius:6px;
      color:var(--cyan);
      background:rgba(98,227,229,.08);
      box-shadow:inset 0 0 16px rgba(98,227,229,.08);
      font-size:16px;
    }
    .nav-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border:1px solid rgba(152,220,166,.3);
      background:rgba(152,220,166,.08);
      padding:3px 8px;
      color:#b9ebc3;
      font-size:11px;
      border-radius:3px;
      line-height:1.3;
    }
    .nav-badge i{font-size:9px}
    .desktop-menu{
      display:flex;
      align-items:center;
      gap:4px;
      margin:0 0 0 auto;
      list-style:none;
    }
    .desktop-menu a{
      position:relative;
      display:block;
      padding:10px 13px;
      color:var(--muted);
      font-size:14px;
      white-space:nowrap;
    }
    .desktop-menu a::after{
      position:absolute;
      left:13px;
      right:13px;
      bottom:4px;
      height:2px;
      background:var(--cyan);
      content:"";
      transform:scaleX(0);
      transform-origin:left;
      transition:transform var(--transition);
    }
    .desktop-menu a:hover,.desktop-menu a.active{color:var(--text)}
    .desktop-menu a:hover::after,.desktop-menu a.active::after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border:1px solid var(--line);
      border-radius:5px;
      background:transparent;
      color:var(--muted);
    }
    .nav-search:hover{border-color:var(--line-strong);color:var(--cyan);background:rgba(98,227,229,.07)}
    .menu-toggle{
      display:none;
      width:38px;
      height:38px;
      border:1px solid var(--line);
      border-radius:5px;
      background:rgba(255,255,255,.025);
      color:var(--text);
    }
    .mobile-panel{
      display:none;
      padding:10px 24px 20px;
      border-top:1px solid var(--line);
      background:rgba(7,18,29,.98);
    }
    .mobile-panel.is-open{display:block}
    .mobile-panel a{
      display:block;
      padding:12px 0;
      border-bottom:1px solid rgba(166,223,235,.1);
      color:var(--muted);
    }
    .mobile-panel a.active{color:var(--cyan)}
    .mobile-panel .button{width:100%;margin-top:15px}

    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      margin:0;
      border:1px solid transparent;
      border-radius:5px;
      padding:10px 17px;
      font-weight:700;
      font-size:14px;
      letter-spacing:0;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
    }
    .button.primary{
      background:var(--coral);
      color:#25120f;
      box-shadow:0 0 0 1px rgba(255,143,117,.28),0 8px 24px rgba(255,112,86,.2);
    }
    .button.primary:hover{
      background:#ffa188;
      color:#1d0d0b;
      transform:translateY(-2px);
      box-shadow:0 0 22px rgba(255,143,117,.26),0 12px 30px rgba(0,0,0,.24);
    }
    .button.primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(0,0,0,.28)}
    .button.ghost{
      border-color:var(--line-strong);
      background:rgba(98,227,229,.04);
      color:var(--text);
    }
    .button.ghost:hover{border-color:var(--cyan);background:rgba(98,227,229,.12);color:var(--cyan);transform:translateY(-2px)}
    .button.small{min-height:35px;padding:7px 12px;font-size:13px}
    .button[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}

    .hero{
      position:relative;
      min-height:760px;
      padding:150px 0 96px;
      display:flex;
      align-items:center;
      isolation:isolate;
      background-color:#102432;
      background-image:
        linear-gradient(90deg,rgba(7,18,29,.92) 0%,rgba(7,18,29,.7) 46%,rgba(7,18,29,.32) 100%),
        linear-gradient(0deg,rgba(7,18,29,.15),rgba(7,18,29,.15)),
        url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1900&q=85");
      background-size:cover;
      background-position:center;
    }
    .hero::after{
      position:absolute;
      z-index:-1;
      right:0;
      bottom:0;
      left:0;
      height:180px;
      content:"";
      background:linear-gradient(transparent,var(--ink));
    }
    .hero-content{position:relative;max-width:760px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:19px;
      color:var(--cyan);
      font-size:13px;
      font-weight:700;
    }
    .eyebrow::before{
      width:22px;
      height:1px;
      content:"";
      background:var(--cyan);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:760px;
      margin-bottom:23px;
      color:#f4fcfd;
      font-size:56px;
      font-weight:800;
      line-height:1.2;
      letter-spacing:0;
      text-wrap:balance;
    }
    .hero-lead{
      max-width:680px;
      margin-bottom:28px;
      color:#cfdee3;
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px}
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid rgba(200,233,239,.21);
      border-radius:4px;
      padding:7px 10px;
      background:rgba(5,15,24,.38);
      color:#d9e7e9;
      font-size:12px;
    }
    .meta-chip i{color:var(--cyan)}
    .hero-path{
      position:absolute;
      right:24px;
      bottom:43px;
      display:flex;
      align-items:center;
      gap:9px;
      color:#a8c3ca;
      font-size:12px;
    }
    .hero-path span{width:44px;height:1px;background:rgba(98,227,229,.5)}
    .hero-path strong{color:var(--cyan);font-weight:700}

    .section{position:relative;padding:94px 0}
    .section-dark{background:var(--ink-soft)}
    .section-heading{max-width:710px;margin-bottom:42px}
    .section-kicker{
      margin-bottom:9px;
      color:var(--coral);
      font-size:12px;
      font-weight:800;
      letter-spacing:1px;
    }
    h2{
      margin-bottom:13px;
      color:var(--text);
      font-size:34px;
      font-weight:800;
      line-height:1.33;
      letter-spacing:0;
    }
    .section-heading p{margin-bottom:0;color:var(--muted);font-size:16px;line-height:1.85}

    .friction-band{
      border-top:1px solid rgba(166,223,235,.11);
      border-bottom:1px solid rgba(166,223,235,.11);
      background:#0b1a27;
    }
    .friction-list{position:relative}
    .friction-item{
      position:relative;
      display:grid;
      grid-template-columns:56px minmax(0,1fr) minmax(220px,1.1fr);
      align-items:center;
      gap:28px;
      min-height:122px;
      padding:25px 0;
      border-bottom:1px solid rgba(166,223,235,.11);
    }
    .friction-item:last-child{border-bottom:0}
    .friction-no{color:rgba(98,227,229,.55);font-size:28px;font-weight:800}
    .friction-item h3{margin:0;color:var(--text);font-size:18px;line-height:1.45}
    .friction-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .friction-icon{
      position:absolute;
      right:0;
      top:50%;
      display:grid;
      width:34px;
      height:34px;
      place-items:center;
      border:1px solid var(--line);
      border-radius:50%;
      color:var(--cyan);
      transform:translateY(-50%);
    }

    .solution-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:stretch}
    .route-board{
      position:relative;
      overflow:hidden;
      min-height:500px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:
        linear-gradient(145deg,rgba(98,227,229,.08),transparent 48%),
        rgba(16,37,54,.78);
      padding:32px;
      box-shadow:var(--shadow);
    }
    .route-board::after{
      position:absolute;
      top:58px;
      bottom:45px;
      left:51px;
      width:1px;
      content:"";
      background:linear-gradient(var(--cyan),rgba(98,227,229,.05));
    }
    .route-title{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;margin-bottom:31px}
    .route-title h3{margin:0;font-size:21px}
    .state{display:inline-flex;align-items:center;gap:6px;border-radius:3px;padding:4px 7px;font-size:11px;font-weight:700}
    .state.live{color:#bdecc6;background:rgba(152,220,166,.11);border:1px solid rgba(152,220,166,.22)}
    .state.live i{font-size:8px}
    .route-step{position:relative;z-index:1;display:grid;grid-template-columns:38px 1fr;gap:16px;padding:0 0 29px}
    .route-step:last-child{padding-bottom:0}
    .route-dot{
      display:grid;
      place-items:center;
      width:38px;height:38px;
      border:1px solid rgba(98,227,229,.55);
      border-radius:50%;
      background:#12354a;
      color:var(--cyan);
      font-size:14px;
    }
    .route-step h4{margin:3px 0 5px;font-size:16px;line-height:1.4}
    .route-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}
    .solution-stack{display:grid;gap:22px}
    .feature-panel{
      min-height:239px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:28px;
      background:rgba(20,45,64,.7);
      box-shadow:0 12px 30px rgba(0,0,0,.12);
      transition:transform var(--transition),border-color var(--transition),background var(--transition);
    }
    .feature-panel:hover{border-color:var(--line-strong);background:rgba(25,55,75,.86);transform:translateY(-3px)}
    .panel-top{display:flex;justify-content:space-between;gap:15px;align-items:flex-start;margin-bottom:25px}
    .panel-icon{
      display:grid;
      width:42px;height:42px;
      place-items:center;
      border-radius:6px;
      color:var(--coral);
      background:rgba(255,143,117,.11);
      font-size:20px;
    }
    .feature-panel h3{margin-bottom:10px;font-size:20px}
    .feature-panel p{margin-bottom:18px;color:var(--muted);font-size:14px;line-height:1.8}
    .text-link{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:13px;font-weight:700}
    .text-link:hover{color:#b6ffff;transform:translateX(3px)}

    .index-band{background:#0c1e2d}
    .index-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
    .index-visual{
      position:relative;
      min-height:430px;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:
        linear-gradient(0deg,rgba(7,18,29,.78),rgba(7,18,29,.1)),
        url("https://images.unsplash.com/photo-1492619375914-88005aa9e8fb?auto=format&fit=crop&w=900&q=80") center/cover;
    }
    .index-caption{position:absolute;right:0;bottom:0;left:0;padding:25px;background:linear-gradient(transparent,rgba(7,18,29,.95))}
    .index-caption span{color:var(--cyan);font-size:12px;font-weight:700}
    .index-caption strong{display:block;margin-top:3px;font-size:19px}
    .index-copy h2{max-width:520px}
    .index-copy>p{max-width:580px;color:var(--muted);font-size:16px}
    .signal-list{margin:28px 0 0;padding:0;list-style:none}
    .signal-list li{
      display:flex;
      align-items:flex-start;
      gap:13px;
      padding:14px 0;
      border-bottom:1px solid rgba(166,223,235,.11);
      color:#d8e7ea;
      font-size:14px;
    }
    .signal-list i{margin-top:5px;color:var(--success);font-size:13px}
    .signal-list small{display:block;margin-top:2px;color:var(--dim);font-size:12px}

    .theme-section{background:var(--ink)}
    .theme-grid{display:grid;grid-template-columns:1.17fr .83fr;gap:22px}
    .theme-main,.theme-side{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:var(--surface);
      transition:transform var(--transition),border-color var(--transition);
    }
    .theme-main:hover,.theme-side:hover{transform:translateY(-3px);border-color:var(--line-strong)}
    .theme-main{min-height:420px}
    .theme-main .theme-image{height:100%;min-height:420px}
    .theme-side{min-height:420px;padding:28px}
    .theme-image{overflow:hidden;background:#163044}
    .theme-image img{width:100%;height:100%;object-fit:cover;transition:transform 500ms ease}
    .theme-main:hover img{transform:scale(1.04)}
    .theme-overlay{
      position:absolute;
      right:0;bottom:0;left:0;
      padding:35px;
      background:linear-gradient(transparent 0%,rgba(7,18,29,.95) 82%);
    }
    .theme-overlay h3{margin:11px 0 8px;font-size:27px}
    .theme-overlay p{max-width:590px;margin-bottom:19px;color:#c5d9de;font-size:14px}
    .theme-side::before{
      position:absolute;top:0;right:0;width:100%;height:4px;
      content:"";background:var(--coral);
    }
    .theme-side h3{margin:13px 0 10px;font-size:24px}
    .theme-side>p{color:var(--muted);font-size:14px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:23px 0}
    .tag{display:inline-flex;border:1px solid rgba(166,223,235,.19);border-radius:3px;padding:5px 8px;color:#b9ccd1;background:rgba(255,255,255,.025);font-size:12px;line-height:1.35}
    .tag.hot{border-color:rgba(255,143,117,.4);color:#ffc0b0;background:rgba(255,143,117,.08)}
    .side-divider{height:1px;margin:20px 0;background:var(--line)}
    .update-line{display:flex;justify-content:space-between;gap:10px;color:var(--dim);font-size:12px}
    .update-line strong{color:var(--success);font-weight:700}

    .news-section{background:var(--ink-soft)}
    .news-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:44px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{
      display:grid;
      grid-template-columns:88px 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px 0;
      border-bottom:1px solid var(--line);
    }
    .news-date{color:var(--cyan);font-size:13px;font-weight:800}
    .news-item h3{margin:0 0 3px;font-size:16px;line-height:1.45}
    .news-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .news-item .text-link{white-space:nowrap}
    .news-aside{
      align-self:start;
      border-left:1px solid var(--line);
      padding-left:32px;
    }
    .aside-label{display:block;margin-bottom:14px;color:var(--coral);font-size:12px;font-weight:800}
    .quote-short{margin:0 0 22px;color:#d9e9ec;font-size:21px;font-weight:700;line-height:1.6}
    .news-aside p{color:var(--muted);font-size:14px}
    .search-box{display:flex;gap:8px;margin-top:22px}
    .search-box label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
    .search-box input{
      min-width:0;
      flex:1;
      height:42px;
      border:1px solid var(--line);
      border-radius:5px;
      padding:0 12px;
      background:#0a1825;
      color:var(--text);
      font-size:13px;
    }
    .search-box input::placeholder{color:#69808b}
    .search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(98,227,229,.12);outline:0}
    .icon-button{
      display:grid;
      flex:0 0 42px;
      width:42px;height:42px;
      place-items:center;
      border:1px solid rgba(255,143,117,.5);
      border-radius:5px;
      background:var(--coral);
      color:#28110c;
      transition:transform var(--transition),background var(--transition);
    }
    .icon-button:hover{background:#ffa188;transform:translateY(-2px)}

    .voice-section{background:var(--ink)}
    .quote-rail{display:grid;grid-template-columns:1fr 1.1fr .9fr;gap:18px;align-items:start}
    .voice{
      min-height:210px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:25px;
      background:rgba(18,42,59,.62);
      transition:transform var(--transition),border-color var(--transition);
    }
    .voice:nth-child(2){margin-top:35px;background:rgba(23,51,69,.75)}
    .voice:nth-child(3){margin-top:16px}
    .voice:hover{border-color:var(--line-strong);transform:translateY(-3px)}
    .voice-mark{margin-bottom:13px;color:var(--coral);font-size:31px;line-height:1}
    .voice p{margin-bottom:22px;color:#d8e7e9;font-size:15px;line-height:1.85}
    .voice-footer{display:flex;align-items:center;gap:10px;color:var(--dim);font-size:12px}
    .avatar{display:grid;width:28px;height:28px;place-items:center;border-radius:50%;background:#25465c;color:var(--cyan);font-size:11px;font-weight:800}

    .faq-section{background:#0b1a27}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:62px}
    .faq-intro p{color:var(--muted);font-size:15px}
    .faq-note{display:flex;align-items:flex-start;gap:10px;margin-top:25px;border-left:2px solid var(--coral);padding:5px 0 5px 13px;color:#bdcdd1;font-size:13px;line-height:1.75}
    .faq-note i{margin-top:5px;color:var(--coral)}
    .accordion{margin:0;background:transparent}
    .accordion-item{border:0;background:transparent}
    .accordion-title{
      position:relative;
      border:0;
      border-bottom:1px solid var(--line);
      padding:19px 44px 19px 0;
      background:transparent;
      color:var(--text);
      font-size:16px;
      font-weight:700;
      line-height:1.55;
    }
    .accordion-title:hover,.accordion-title:focus{background:transparent;color:var(--cyan)}
    .accordion-title::before{right:10px;margin-top:-14px;color:var(--cyan);font-size:23px;font-weight:400}
    .accordion-content{
      border:0;
      border-bottom:1px solid var(--line);
      padding:0 38px 20px 0;
      background:transparent;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .accordion-item.is-active>.accordion-title{border-bottom-color:transparent;color:var(--cyan)}

    .cta-section{
      position:relative;
      overflow:hidden;
      padding:82px 0;
      background:
        linear-gradient(100deg,rgba(15,45,61,.99),rgba(20,61,73,.88)),
        url("https://images.unsplash.com/photo-1517604931442-7e0c8ed2963c?auto=format&fit=crop&w=1600&q=80") center/cover;
    }
    .cta-section::after{
      position:absolute;right:-40px;bottom:-70px;
      width:280px;height:280px;
      border:1px solid rgba(98,227,229,.23);
      border-radius:50%;
      content:"";
    }
    .cta-inner{position:relative;z-index:1;display:flex;justify-content:space-between;gap:32px;align-items:center}
    .cta-copy{max-width:720px}
    .cta-copy h2{margin-bottom:13px;font-size:37px}
    .cta-copy p{margin:0;color:#c6e0e3;font-size:16px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:11px;flex:0 0 auto}

    .site-footer{border-top:1px solid var(--line);background:#08131e}
    .footer-main{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:40px;padding:59px 0 36px}
    .footer-brand .brand{margin-bottom:15px}
    .footer-brand p{max-width:420px;margin:0;color:var(--dim);font-size:13px;line-height:1.8}
    .footer-column h3{margin:0 0 13px;color:#dcebed;font-size:14px}
    .footer-column a{display:block;margin:8px 0;color:var(--dim);font-size:13px}
    .footer-column a:hover{color:var(--cyan);transform:translateX(2px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      border-top:1px solid rgba(166,223,235,.11);
      padding:18px 0 23px;
      color:#647a84;
      font-size:12px;
    }
    .footer-bottom a:hover{color:var(--cyan)}

    @media (max-width:1024px){
      h1{font-size:46px}
      .hero{min-height:700px}
      .solution-layout,.index-layout{gap:28px}
      .faq-layout{gap:38px}
      .news-layout{gap:30px}
    }
    @media (max-width:768px){
      :root{--nav-height:66px}
      .grid-container{padding-right:20px;padding-left:20px}
      .nav-wrap{gap:10px}
      .brand{font-size:15px}
      .brand-mark{width:28px;height:28px}
      .nav-badge,.desktop-menu,.nav-search{display:none}
      .nav-actions{margin-left:auto}
      .nav-actions .button{min-height:36px;padding:8px 11px;font-size:12px}
      .menu-toggle{display:grid;place-items:center}
      .hero{min-height:680px;padding:130px 0 85px;background-position:57% center}
      h1{font-size:40px}
      .hero-lead{font-size:16px}
      .hero-path{display:none}
      .section{padding:72px 0}
      h2{font-size:29px}
      .friction-item{grid-template-columns:44px 1fr;padding-right:43px;gap:16px}
      .friction-item p{grid-column:2}
      .solution-layout,.index-layout,.theme-grid,.news-layout,.faq-layout{grid-template-columns:1fr}
      .solution-stack{grid-template-columns:1fr 1fr}
      .index-visual{min-height:350px}
      .theme-side{min-height:0}
      .theme-main,.theme-main .theme-image{min-height:370px}
      .news-aside{border-top:1px solid var(--line);border-left:0;padding-top:28px;padding-left:0}
      .quote-rail{grid-template-columns:1fr 1fr}
      .voice:nth-child(2){margin-top:25px}
      .voice:nth-child(3){margin-top:0}
      .cta-inner{display:block}
      .cta-actions{margin-top:23px}
      .footer-main{grid-template-columns:1.3fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:520px){
      .brand{max-width:174px;white-space:normal}
      .nav-actions .button{display:none}
      .hero{min-height:650px;padding-top:116px;background-position:63% center}
      h1{font-size:34px;line-height:1.27}
      .hero-lead{font-size:15px;line-height:1.82}
      .hero-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .button{width:100%}
      .hero-meta{gap:7px}
      .meta-chip{font-size:11px}
      .section{padding:61px 0}
      .section-heading{margin-bottom:30px}
      h2{font-size:26px}
      .friction-item{grid-template-columns:35px 1fr;gap:11px}
      .friction-no{font-size:22px}
      .friction-item h3{font-size:16px}
      .friction-icon{right:0;width:29px;height:29px}
      .route-board{min-height:0;padding:23px}
      .route-board::after{left:41px}
      .solution-stack{grid-template-columns:1fr}
      .feature-panel{min-height:0;padding:23px}
      .index-visual{min-height:290px}
      .theme-main,.theme-main .theme-image{min-height:355px}
      .theme-overlay{padding:23px}
      .theme-overlay h3{font-size:23px}
      .theme-side{padding:23px}
      .news-item{grid-template-columns:1fr;gap:7px}
      .news-item .text-link{margin-top:4px}
      .quote-rail{grid-template-columns:1fr}
      .voice,.voice:nth-child(2),.voice:nth-child(3){min-height:0;margin-top:0}
      .faq-layout{gap:28px}
      .cta-section{padding:62px 0}
      .cta-copy h2{font-size:29px}
      .cta-actions{display:grid;grid-template-columns:1fr}
      .cta-actions .button{width:100%}
      .footer-main{grid-template-columns:1fr;gap:23px;padding-top:45px}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block;line-height:1.8}
      .footer-bottom span{display:block}
    }

/* roulang page: category1 */
:root{
      --ink:#07121d;--ink-soft:#0d1b2a;--surface:#102536;--surface-2:#142d40;
      --surface-3:#19374b;--line:rgba(166,223,235,.17);--line-strong:rgba(107,225,232,.42);
      --text:#edf8fa;--muted:#aabcc5;--dim:#718792;--cyan:#62e3e5;--cyan-deep:#1eaeb8;
      --coral:#ff8f75;--warm:#ffd8ab;--success:#98dca6;--danger:#ff8f75;
      --radius:8px;--shadow:0 18px 45px rgba(0,0,0,.23);--container:1220px;
      --nav-height:76px;--transition:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;background:var(--ink)}
    body{margin:0;background:var(--ink);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
    ::selection{background:rgba(98,227,229,.3);color:#fff}
    a{color:inherit;text-decoration:none;transition:color var(--transition),transform var(--transition),border-color var(--transition),background var(--transition)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}button{cursor:pointer}
    .grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
    .site-header{position:fixed;z-index:99;top:0;left:0;width:100%;min-height:var(--nav-height);border-bottom:1px solid transparent;background:rgba(7,18,29,.62);backdrop-filter:blur(14px);transition:background var(--transition),border-color var(--transition),box-shadow var(--transition)}
    .site-header.is-scrolled{background:rgba(7,18,29,.95);border-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.18)}
    .nav-wrap{min-height:var(--nav-height);display:flex;align-items:center;gap:20px}
    .brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;line-height:1.2;white-space:nowrap}
    .brand-mark{width:30px;height:30px;display:grid;place-items:center;border:1px solid rgba(98,227,229,.65);border-radius:6px;color:var(--cyan);background:rgba(98,227,229,.08);box-shadow:inset 0 0 16px rgba(98,227,229,.08);font-size:16px}
    .nav-badge{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(152,220,166,.3);background:rgba(152,220,166,.08);padding:3px 8px;color:#b9ebc3;font-size:11px;border-radius:3px;line-height:1.3}
    .desktop-menu{display:flex;align-items:center;gap:4px;margin:0 0 0 auto;list-style:none}
    .desktop-menu a{position:relative;display:block;padding:10px 13px;color:var(--muted);font-size:14px;white-space:nowrap}
    .desktop-menu a:after{position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:var(--cyan);content:"";transform:scaleX(0);transform-origin:left;transition:transform var(--transition)}
    .desktop-menu a:hover,.desktop-menu a.active{color:var(--text)}
    .desktop-menu a:hover:after,.desktop-menu a.active:after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search,.menu-toggle{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:5px;background:transparent;color:var(--muted)}
    .nav-search:hover,.menu-toggle:hover{border-color:var(--line-strong);color:var(--cyan);background:rgba(98,227,229,.07)}
    .menu-toggle{display:none}
    .mobile-panel{display:none;padding:10px 24px 20px;border-top:1px solid var(--line);background:rgba(7,18,29,.98)}
    .mobile-panel.is-open{display:block}.mobile-panel a{display:block;padding:12px 0;border-bottom:1px solid rgba(166,223,235,.1);color:var(--muted)}
    .mobile-panel a.active{color:var(--cyan)}.mobile-panel .button{width:100%;margin-top:15px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;margin:0;border:1px solid transparent;border-radius:5px;padding:10px 17px;font-weight:700;font-size:14px;letter-spacing:0;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition)}
    .button.primary{background:var(--coral);color:#25120f;box-shadow:0 0 0 1px rgba(255,143,117,.28),0 8px 24px rgba(255,112,86,.2)}
    .button.primary:hover{background:#ffa188;color:#1d0d0b;transform:translateY(-2px);box-shadow:0 0 22px rgba(255,143,117,.26),0 12px 30px rgba(0,0,0,.24)}
    .button.primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(0,0,0,.28)}
    .button.ghost{border-color:var(--line-strong);background:rgba(98,227,229,.04);color:var(--text)}
    .button.ghost:hover{border-color:var(--cyan);background:rgba(98,227,229,.12);color:var(--cyan);transform:translateY(-2px)}
    .button.small{min-height:35px;padding:7px 12px;font-size:13px}
    .button:focus,.nav-search:focus,.menu-toggle:focus,input:focus,.accordion-title:focus{outline:3px solid rgba(98,227,229,.34);outline-offset:3px}
    .page-hero{position:relative;padding:145px 0 75px;min-height:470px;background-color:#102432;background-image:linear-gradient(90deg,rgba(7,18,29,.94),rgba(7,18,29,.62) 56%,rgba(7,18,29,.35)),url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1900&q=85");background-size:cover;background-position:center}
    .hero-copy{max-width:760px}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:1px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:1px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}h1{margin:18px 0 16px;font-size:clamp(2.5rem,5vw,4.8rem);line-height:1.13;letter-spacing:0;font-weight:800}
    h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.25;letter-spacing:0;margin-bottom:15px}h3{font-size:1.1rem;line-height:1.4}
    .hero-copy p{max-width:690px;color:#d4e1e5;font-size:18px}.hero-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
    .tag,.status{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border:1px solid var(--line);border-radius:4px;background:rgba(13,27,42,.7);color:var(--muted);font-size:12px}
    .tag.active,.status.live{color:var(--cyan);border-color:var(--line-strong);background:rgba(98,227,229,.09)}
    .status.new{color:var(--warm);border-color:rgba(255,216,171,.32)}
    .section{padding:82px 0}.section.alt{background:var(--ink-soft);border-top:1px solid rgba(166,223,235,.08);border-bottom:1px solid rgba(166,223,235,.08)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}.section-head p{max-width:560px;color:var(--muted);margin-bottom:0}
    .index-strip{margin-top:-1px;padding:18px 0;background:#0b1e2d;border-bottom:1px solid var(--line);border-top:1px solid var(--line)}
    .index-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.index-label{color:var(--dim);font-size:13px}.index-links{display:flex;gap:9px;flex-wrap:wrap}
    .index-links a{padding:7px 11px;color:var(--muted);border:1px solid var(--line);border-radius:4px;font-size:13px}.index-links a:hover,.index-links a.active{color:var(--cyan);border-color:var(--line-strong);background:rgba(98,227,229,.08)}
    .topic-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr);gap:24px;align-items:start}
    .feature-panel,.topic-item,.filter-panel,.note-panel,.quote-panel{border:1px solid var(--line);background:linear-gradient(135deg,rgba(20,45,64,.86),rgba(13,27,42,.9));border-radius:var(--radius);box-shadow:var(--shadow)}
    .feature-panel{overflow:hidden}.feature-image{aspect-ratio:16/8;object-fit:cover;width:100%;filter:saturate(.9)}
    .feature-body{padding:25px 27px}.feature-body p,.topic-item p,.note-panel p{color:var(--muted);font-size:14px}
    .feature-foot,.topic-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px}.topic-side{display:grid;gap:14px}
    .topic-item{display:grid;grid-template-columns:110px 1fr;min-height:132px;overflow:hidden}.topic-item img{width:110px;height:100%;min-height:132px;object-fit:cover}.topic-item-body{padding:16px 17px}.topic-item h3{margin:4px 0 6px}.topic-item p{margin-bottom:0;line-height:1.6}.topic-meta{margin-top:10px;font-size:12px;color:var(--dim)}
    .filter-panel{padding:19px;margin-bottom:25px}.filter-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.filter-row label{font-size:13px;color:var(--muted);margin-right:5px}.filter-chip{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:4px;padding:7px 12px;font-size:13px}.filter-chip:hover,.filter-chip.active{color:var(--cyan);border-color:var(--cyan);background:rgba(98,227,229,.08)}
    .browse-list{display:grid;gap:14px}.browse-item{display:grid;grid-template-columns:210px minmax(0,1fr) auto;gap:21px;align-items:center;padding:15px;border:1px solid var(--line);background:rgba(16,37,54,.72);border-radius:var(--radius);transition:transform var(--transition),border-color var(--transition),background var(--transition)}
    .browse-item:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(25,55,75,.88)}.browse-item img{width:210px;height:125px;object-fit:cover;border-radius:5px}.browse-item h3{margin:8px 0 6px}.browse-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}.item-actions{white-space:nowrap}
    .topic-labels{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.topic-labels .tag{font-size:11px;min-height:24px;padding:3px 8px}
    .note-panel{padding:24px;position:sticky;top:100px}.note-panel h3{margin-bottom:12px}.note-list{margin:22px 0 0;padding:0;list-style:none}.note-list li{display:flex;gap:10px;padding:11px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.note-list i{color:var(--cyan);margin-top:4px}
    .split-section{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}.quote-panel{padding:27px}.quote-panel blockquote{margin:0;color:#e5f2f4;font-size:21px;line-height:1.65}.quote-panel cite{display:block;margin-top:20px;color:var(--dim);font-size:13px;font-style:normal}
    .accordion{margin:0;background:transparent}.accordion-item{border:1px solid var(--line);background:rgba(16,37,54,.6);margin-bottom:10px;border-radius:var(--radius);overflow:hidden}.accordion-title{display:block;padding:17px 20px;color:var(--text);font-weight:700}.accordion-title:hover{background:rgba(98,227,229,.06);color:var(--cyan)}.accordion-content{padding:0 20px 18px;background:rgba(7,18,29,.22);color:var(--muted);font-size:14px}
    .cta-band{padding:58px 0;background:#183748;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong)}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}.cta-inner p{color:var(--muted);max-width:620px;margin-bottom:0}
    .site-footer{padding:56px 0 22px;background:#050e17;border-top:1px solid rgba(166,223,235,.12)}.footer-main{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:55px}.footer-brand p{max-width:420px;color:var(--dim);font-size:13px;margin:18px 0 0}.footer-column{display:flex;flex-direction:column;gap:8px}.footer-column h3{font-size:14px;color:var(--text);margin-bottom:8px}.footer-column a{color:var(--dim);font-size:13px}.footer-column a:hover{color:var(--cyan);transform:translateX(3px)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid var(--line);color:var(--dim);font-size:12px}
    .search-drawer{position:fixed;z-index:120;inset:0;background:rgba(4,12,19,.86);display:none;align-items:flex-start;justify-content:center;padding:130px 24px}.search-drawer.is-open{display:flex}.search-box{width:min(620px,100%);padding:24px;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.search-box label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.search-line{display:flex;gap:10px}.search-line input{min-width:0;flex:1;border:1px solid var(--line);background:var(--ink-soft);color:var(--text);border-radius:5px;padding:9px 12px}.close-search{float:right;border:0;background:transparent;color:var(--muted);font-size:22px}
    @media(max-width:1024px){.nav-badge{display:none}.topic-layout,.split-section{grid-template-columns:1fr}.note-panel{position:static}.footer-main{gap:30px}}
    @media(max-width:768px){:root{--nav-height:66px}.grid-container{padding-left:18px;padding-right:18px}.desktop-menu,.nav-actions .nav-search{display:none}.nav-wrap{gap:12px}.nav-actions{margin-left:auto}.menu-toggle{display:grid}.page-hero{padding:125px 0 60px;min-height:430px}.section{padding:60px 0}.section-head,.cta-inner,.index-inner{display:block}.section-head p{margin-top:12px}.index-links{margin-top:12px}.browse-item{grid-template-columns:145px minmax(0,1fr);gap:15px}.browse-item img{width:145px;height:105px}.item-actions{grid-column:2}.footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}
    @media(max-width:520px){h1{font-size:2.45rem}.hero-copy p{font-size:16px}.hero-meta{margin-top:20px}.feature-body{padding:20px}.topic-item{grid-template-columns:92px 1fr}.topic-item img{width:92px;min-height:122px}.topic-item-body{padding:12px}.browse-item{grid-template-columns:1fr;gap:12px}.browse-item img{width:100%;height:auto;aspect-ratio:16/8}.item-actions{grid-column:auto}.item-actions .button{width:100%}.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}.cta-inner .button{width:100%;margin-top:20px}.search-line{display:block}.search-line .button{width:100%;margin-top:10px}}

/* roulang page: category2 */
:root{
      --ink:#07121d;--ink-soft:#0d1b2a;--surface:#102536;--surface-2:#142d40;
      --surface-3:#19374b;--line:rgba(166,223,235,.17);--line-strong:rgba(107,225,232,.42);
      --text:#edf8fa;--muted:#aabcc5;--dim:#718792;--cyan:#62e3e5;--cyan-deep:#1eaeb8;
      --coral:#ff8f75;--warm:#ffd8ab;--success:#98dca6;--danger:#ff8f75;
      --radius:8px;--shadow:0 18px 45px rgba(0,0,0,.23);--container:1220px;
      --nav-height:66px;--transition:180ms ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth;background:var(--ink)}
    body{margin:0;background:var(--ink);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
    ::selection{background:rgba(98,227,229,.3);color:#fff}
    a{color:inherit;text-decoration:none;transition:color var(--transition),transform var(--transition),border-color var(--transition),background var(--transition)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}button{cursor:pointer}
    .grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
    .site-header{position:fixed;z-index:99;top:0;left:0;width:100%;min-height:var(--nav-height);border-bottom:1px solid transparent;background:rgba(7,18,29,.58);backdrop-filter:blur(14px);transition:background var(--transition),border-color var(--transition),box-shadow var(--transition)}
    .site-header.is-scrolled{background:rgba(7,18,29,.94);border-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.18)}
    .nav-wrap{min-height:var(--nav-height);display:flex;align-items:center;gap:20px}
    .brand{flex:0 0 auto;display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;line-height:1.2;white-space:nowrap}
    .brand-mark{width:30px;height:30px;display:grid;place-items:center;border:1px solid rgba(98,227,229,.65);border-radius:6px;color:var(--cyan);background:rgba(98,227,229,.08);box-shadow:inset 0 0 16px rgba(98,227,229,.08);font-size:16px}
    .nav-badge{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(152,220,166,.3);background:rgba(152,220,166,.08);padding:3px 8px;color:#b9ebc3;font-size:11px;border-radius:3px;line-height:1.3}
    .desktop-menu{display:flex;align-items:center;gap:4px;margin:0 0 0 auto;list-style:none}
    .desktop-menu a{position:relative;display:block;padding:10px 13px;color:var(--muted);font-size:14px;white-space:nowrap}
    .desktop-menu a::after{position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:var(--cyan);content:"";transform:scaleX(0);transform-origin:left;transition:transform var(--transition)}
    .desktop-menu a:hover,.desktop-menu a.active{color:var(--text)}.desktop-menu a:hover::after,.desktop-menu a.active::after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}.nav-search,.menu-toggle{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:5px;background:transparent;color:var(--muted)}
    .nav-search:hover,.menu-toggle:hover{border-color:var(--line-strong);color:var(--cyan);background:rgba(98,227,229,.07)}
    .menu-toggle{display:none;width:38px;height:38px}
    .mobile-panel{display:none;padding:10px 24px 20px;border-top:1px solid var(--line);background:rgba(7,18,29,.98)}
    .mobile-panel.is-open{display:block}.mobile-panel a{display:block;padding:12px 0;border-bottom:1px solid rgba(166,223,235,.1);color:var(--muted)}.mobile-panel a.active{color:var(--cyan)}.mobile-panel .button{width:100%;margin-top:15px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;margin:0;border:1px solid transparent;border-radius:5px;padding:10px 17px;font-weight:700;font-size:14px;letter-spacing:0;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition)}
    .button.primary{background:var(--coral);color:#25120f;box-shadow:0 0 0 1px rgba(255,143,117,.28),0 8px 24px rgba(255,112,86,.2)}
    .button.primary:hover{background:#ffa188;color:#1d0d0b;transform:translateY(-2px);box-shadow:0 0 22px rgba(255,143,117,.26),0 12px 30px rgba(0,0,0,.24)}
    .button.primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(0,0,0,.28)}
    .button.ghost{border-color:var(--line-strong);background:rgba(98,227,229,.04);color:var(--text)}.button.ghost:hover{border-color:var(--cyan);background:rgba(98,227,229,.12);color:var(--cyan);transform:translateY(-2px)}
    .button.small{min-height:35px;padding:7px 12px;font-size:13px}
    .button:focus-visible,.nav-search:focus-visible,.menu-toggle:focus-visible,.accordion-title:focus-visible,input:focus-visible{outline:3px solid rgba(255,216,171,.8);outline-offset:3px}
    .hero-inner{padding-top:66px}.sub-hero{padding:128px 0 72px;position:relative;background:linear-gradient(105deg,rgba(7,18,29,.98),rgba(13,43,57,.82)),url("https://images.unsplash.com/photo-1524666041070-9f7d2e7b0a6a?auto=format&fit=crop&w=1900&q=85") center/cover}
    .sub-hero::after{content:"";position:absolute;inset:auto 0 0;height:1px;background:var(--line-strong)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:none}.eyebrow::before{content:"";width:24px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}h1{max-width:780px;margin:18px 0 18px;font-size:clamp(38px,5vw,68px);line-height:1.16;letter-spacing:0;font-weight:800}h2{font-size:34px;line-height:1.25;margin-bottom:14px}h3{font-size:19px;line-height:1.4;margin-bottom:8px}
    .hero-copy{max-width:700px;color:var(--muted);font-size:18px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .section{padding:86px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-head p{max-width:600px;color:var(--muted);margin-bottom:0}
    .index-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}.tag{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border:1px solid var(--line);border-radius:3px;color:var(--muted);font-size:12px;background:rgba(255,255,255,.025)}.tag.active{border-color:var(--line-strong);color:var(--cyan);background:rgba(98,227,229,.07)}
    .browse-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:26px;align-items:start}.feature-panel,.side-panel,.topic-row,.timeline-item,.faq-wrap{border:1px solid var(--line);background:rgba(16,37,54,.74);box-shadow:var(--shadow);border-radius:var(--radius)}
    .feature-panel{overflow:hidden}.feature-image{aspect-ratio:16/8;object-fit:cover;width:100%;filter:saturate(.9)}.feature-content{padding:26px}.feature-content p,.topic-row p,.timeline-item p{color:var(--muted);margin-bottom:14px}.meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--dim);font-size:12px}.meta .tag{color:var(--cyan)}
    .side-panel{padding:24px}.side-panel h3{padding-bottom:14px;border-bottom:1px solid var(--line)}.filter-list{list-style:none;margin:0;padding:0}.filter-list li{border-bottom:1px solid rgba(166,223,235,.1)}.filter-list a{display:flex;justify-content:space-between;gap:15px;padding:13px 0;color:var(--muted)}.filter-list a:hover{color:var(--cyan);padding-left:4px}.filter-list span{color:var(--dim);font-size:12px}
    .topic-flow{display:grid;gap:12px}.topic-row{display:grid;grid-template-columns:145px 1fr auto;gap:22px;align-items:center;padding:20px}.topic-row:nth-child(2){margin-left:7%;background:rgba(25,55,75,.72)}.topic-row:nth-child(3){margin-left:14%}.topic-label{color:var(--coral);font-weight:700;font-size:13px}.topic-row p{margin:0;font-size:14px}
    .timeline{border-left:1px solid var(--line-strong);margin-left:14px;padding-left:28px;display:grid;gap:18px}.timeline-item{position:relative;padding:22px}.timeline-item::before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;left:-34px;top:30px;background:var(--cyan);box-shadow:0 0 0 5px var(--ink),0 0 14px var(--cyan)}.timeline-item p{font-size:14px;margin-bottom:8px}
    .stats-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.stat{padding:26px 0}.stat strong{display:block;color:var(--cyan);font-size:25px;margin-bottom:4px}.stat span{color:var(--muted);font-size:14px}
    .faq-wrap{padding:10px 24px}.accordion{background:transparent;margin:0}.accordion-item{border-bottom:1px solid var(--line)}.accordion-item:last-child{border-bottom:0}.accordion-title{display:block;padding:20px 34px 20px 0;color:var(--text);font-weight:700;position:relative}.accordion-title::after{content:"+";position:absolute;right:2px;color:var(--cyan);font-size:22px}.is-active>.accordion-title::after{content:"−"}.accordion-content{background:transparent!important;border:0!important;padding:0 35px 20px 0;color:var(--muted);font-size:14px}
    .cta{padding:68px 0;background:linear-gradient(100deg,var(--surface-3),#18333d);border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}.cta p{color:var(--muted);margin:0;max-width:650px}
    .site-footer{padding:62px 0 22px;background:#050e17;border-top:1px solid var(--line)}.footer-main{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer-brand p{max-width:450px;color:var(--dim);font-size:14px;margin:18px 0 0}.footer-column{display:flex;flex-direction:column;gap:9px}.footer-column h3{color:var(--text);font-size:14px;margin-bottom:8px}.footer-column a{color:var(--dim);font-size:14px}.footer-column a:hover{color:var(--cyan);transform:translateX(3px)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:46px;padding-top:18px;border-top:1px solid rgba(166,223,235,.1);color:var(--dim);font-size:12px}
    .search-dialog{display:none;position:fixed;z-index:120;inset:0;background:rgba(3,9,15,.86);padding:120px 24px}.search-dialog.is-open{display:block}.search-box{max-width:620px;margin:auto;padding:26px;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.search-box label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.search-box input{width:100%;height:48px;border:1px solid var(--line);border-radius:4px;background:var(--ink-soft);color:var(--text);padding:0 14px}.search-note{color:var(--dim);font-size:13px;margin:12px 0 0}.close-search{float:right;border:0;background:none;color:var(--muted);font-size:22px}
    @media(max-width:1024px){.nav-badge{display:none}.browse-layout{grid-template-columns:1fr 300px}.topic-row:nth-child(2){margin-left:4%}.topic-row:nth-child(3){margin-left:8%}}
    @media(max-width:768px){.desktop-menu,.nav-actions .button{display:none}.menu-toggle{display:grid}.nav-actions{margin-left:auto}.sub-hero{padding:114px 0 58px}h1{font-size:44px}.hero-copy{font-size:16px}.section{padding:64px 0}.section-head,.cta-inner{display:block}.section-head .button,.cta-inner .button{margin-top:18px}.browse-layout{grid-template-columns:1fr}.side-panel{order:2}.topic-row,.topic-row:nth-child(2),.topic-row:nth-child(3){margin-left:0;grid-template-columns:1fr;gap:8px}.topic-row .button{justify-self:start}.stats{grid-template-columns:1fr}.stat{padding:16px 0}.footer-main{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
    @media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.brand{font-size:16px}.brand-mark{width:28px;height:28px}.hero-actions .button{width:100%}h1{font-size:37px}.sub-hero{padding-top:106px}.section-head h2,h2{font-size:28px}.feature-content{padding:20px}.timeline{margin-left:8px;padding-left:22px}.timeline-item::before{left:-29px}.faq-wrap{padding:8px 18px}.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}}