/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-2:#081827;
      --panel:rgba(12,28,48,.66);
      --panel-strong:rgba(14,33,54,.88);
      --line:rgba(125,199,255,.16);
      --line-strong:rgba(39,215,255,.42);
      --text:#eef8ff;
      --muted:#afc4d8;
      --soft:#7e96ad;
      --cyan:#27d7ff;
      --mint:#35f2c2;
      --blue:#4f8cff;
      --violet:#7c5cff;
      --amber:#ffb86b;
      --danger:#ff758f;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-pill:999px;
      --shadow:0 20px 60px rgba(0,0,0,.34);
      --shadow-soft:0 14px 38px rgba(0,0,0,.24);
      --container:1240px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      --transition:.22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 8%,rgba(39,215,255,.18),transparent 34%),
        radial-gradient(circle at 86% 14%,rgba(124,92,255,.16),transparent 32%),
        radial-gradient(circle at 68% 68%,rgba(53,242,194,.08),transparent 30%),
        linear-gradient(180deg,#06101d 0%,#081827 42%,#050b14 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.12;
      background-image:
        linear-gradient(rgba(125,199,255,.12) 1px,transparent 1px),
        linear-gradient(90deg,rgba(125,199,255,.12) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 80%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(39,215,255,.28);color:#fff}
    .container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:10px;background:#fff;color:#07111f;padding:10px 14px;border-radius:10px;z-index:999}
    .skip-link:focus{left:10px}
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      background:rgba(6,16,29,.72);
      border-bottom:1px solid rgba(125,199,255,.12);
      backdrop-filter:blur(18px);
      transition:var(--transition);
    }
    .site-header.scrolled{background:rgba(5,11,20,.92);box-shadow:0 16px 44px rgba(0,0,0,.34)}
    .brand-row{
      min-height:56px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      border-bottom:1px solid rgba(125,199,255,.10);
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      letter-spacing:.2px;
    }
    .logo-mark{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--cyan),var(--blue) 52%,var(--violet));
      box-shadow:0 0 26px rgba(39,215,255,.26);
      position:relative;
      overflow:hidden;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:7px;
      border:1px solid rgba(255,255,255,.42);
      border-radius:10px;
      transform:rotate(10deg);
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.2}
    .logo-text strong{font-size:17px}
    .logo-text span{font-size:12px;color:var(--muted);font-weight:500;margin-top:3px}
    .brand-tools{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--muted);
      font-size:13px;
    }
    .search-pill{
      width:300px;
      height:38px;
      display:flex;
      align-items:center;
      gap:9px;
      padding:0 14px;
      border:1px solid rgba(148,190,255,.18);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.04);
      color:#8fa9c0;
      transition:var(--transition);
    }
    .search-pill:hover{border-color:rgba(39,215,255,.36);background:rgba(39,215,255,.07)}
    .top-cta{
      height:38px;
      padding:0 15px;
      border-radius:var(--radius-pill);
      background:rgba(39,215,255,.08);
      border:1px solid rgba(39,215,255,.24);
      color:#bdf6ff;
      display:inline-flex;
      align-items:center;
      gap:8px;
      transition:var(--transition);
    }
    .top-cta:hover{background:rgba(39,215,255,.14);transform:translateY(-1px)}
    .nav-row{
      min-height:48px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{
      position:relative;
      padding:9px 14px;
      border-radius:var(--radius-pill);
      color:#d8e9f7;
      font-size:14px;
      font-weight:600;
      transition:var(--transition);
    }
    .main-nav a::after{
      content:"";
      position:absolute;
      left:16px;right:16px;bottom:4px;height:2px;
      border-radius:2px;
      background:linear-gradient(90deg,var(--cyan),var(--violet));
      transform:scaleX(0);
      transform-origin:left;
      transition:var(--transition);
    }
    .main-nav a:hover{color:#7debff;background:rgba(39,215,255,.06)}
    .main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
    .main-nav a.active{
      color:#eaffff;
      background:rgba(39,215,255,.08);
      border:1px solid rgba(39,215,255,.22);
    }
    .trend-bar{
      display:flex;
      align-items:center;
      gap:8px;
      min-width:0;
      color:var(--soft);
      font-size:13px;
    }
    .trend-tags{display:flex;gap:7px;white-space:nowrap;overflow:hidden}
    .trend-tags span{
      padding:4px 9px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(125,199,255,.10);
      color:#b8cce0;
    }
    .menu-toggle{
      display:none;
      width:42px;height:42px;
      border-radius:14px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:#fff;
    }
    .menu-toggle span{display:block;width:18px;height:2px;background:#dff7ff;margin:4px auto;border-radius:2px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:50px;
      padding:0 22px;
      border-radius:var(--radius-pill);
      font-weight:700;
      transition:var(--transition);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,#22d3ee,#4f8cff 52%,#7c5cff);
      box-shadow:0 0 24px rgba(39,215,255,.28),0 16px 34px rgba(79,140,255,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(39,215,255,.38),0 18px 44px rgba(79,140,255,.22)}
    .btn-secondary{
      color:#cff7ff;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(39,215,255,.30);
    }
    .btn-secondary:hover{background:rgba(39,215,255,.10);border-color:rgba(39,215,255,.55);transform:translateY(-2px)}
    .text-link{color:#7debff;font-weight:700;display:inline-flex;align-items:center;gap:6px}
    .text-link span{transition:var(--transition)}
    .text-link:hover span{transform:translateX(4px)}
    .hero{
      position:relative;
      min-height:720px;
      padding:86px 0 78px;
      overflow:hidden;
      background:
        linear-gradient(90deg,rgba(5,11,20,.94),rgba(7,17,31,.82) 48%,rgba(7,17,31,.72)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }
    .hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 72% 24%,rgba(39,215,255,.18),transparent 28%),
        radial-gradient(circle at 28% 74%,rgba(124,92,255,.18),transparent 32%),
        linear-gradient(180deg,transparent 0%,#081827 98%);
      pointer-events:none;
    }
    .hero .container{position:relative;z-index:1}
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);
      gap:34px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 12px;
      border-radius:var(--radius-pill);
      color:#bff9ff;
      border:1px solid rgba(39,215,255,.25);
      background:rgba(39,215,255,.08);
      font-size:14px;
      font-weight:700;
      margin-bottom:20px;
    }
    .eyebrow i{
      width:8px;height:8px;border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 16px rgba(53,242,194,.72);
    }
    h1,h2,h3,p{margin-top:0}
    .hero h1{
      font-size:clamp(38px,5vw,66px);
      line-height:1.08;
      letter-spacing:-1.8px;
      margin-bottom:22px;
      font-weight:800;
    }
    .gradient-text{
      color:transparent;
      background:linear-gradient(90deg,#7debff,#35f2c2 42%,#8da5ff);
      -webkit-background-clip:text;
      background-clip:text;
    }
    .hero-desc{
      max-width:710px;
      color:#c4d7e8;
      font-size:19px;
      line-height:1.9;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
    .hero-kpis{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      max-width:720px;
    }
    .kpi{
      padding:15px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(125,199,255,.13);
    }
    .kpi strong{display:block;color:#7debff;font-size:22px;line-height:1.2}
    .kpi span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .radar-stack{display:grid;gap:16px}
    .glass-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      backdrop-filter:blur(14px);
      box-shadow:var(--shadow-soft);
      transition:var(--transition);
    }
    .glass-card:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
    .radar-card{padding:22px}
    .card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
    .card-head h3{margin:0;font-size:19px}
    .badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:var(--radius-pill);
      padding:5px 10px;
      font-size:12px;
      font-weight:700;
      color:#bdf7ff;
      background:rgba(39,215,255,.09);
      border:1px solid rgba(39,215,255,.22);
    }
    .badge.hot{color:#ffe2bd;background:rgba(255,184,107,.10);border-color:rgba(255,184,107,.28)}
    .news-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .news-list li{
      display:flex;gap:10px;align-items:flex-start;
      color:#d7e8f5;
      font-size:14px;
      padding-bottom:12px;
      border-bottom:1px solid rgba(125,199,255,.10);
    }
    .news-list li:last-child{border-bottom:0;padding-bottom:0}
    .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px rgba(39,215,255,.6);margin-top:9px;flex:0 0 auto}
    .quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .quick-grid a{
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(125,199,255,.12);
      color:#d9efff;
      font-weight:700;
      transition:var(--transition);
    }
    .quick-grid a:hover{background:rgba(39,215,255,.10);border-color:rgba(39,215,255,.36)}
    main{position:relative}
    .section{padding:96px 0}
    .section.compact{padding-top:70px}
    .section-title{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-title h2{
      font-size:clamp(28px,3.2vw,42px);
      line-height:1.22;
      letter-spacing:-.8px;
      margin:0;
    }
    .section-title p{
      color:var(--muted);
      max-width:620px;
      margin:10px 0 0;
      font-size:16px;
    }
    .asym-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .65fr;
      grid-template-rows:auto auto;
      gap:18px;
    }
    .feature-card{padding:26px;position:relative;overflow:hidden;min-height:210px}
    .feature-card.large{grid-row:span 2;min-height:440px}
    .feature-card.wide{grid-column:span 2}
    .feature-card::before{
      content:"";
      position:absolute;right:-34px;top:-34px;width:120px;height:120px;border-radius:50%;
      background:radial-gradient(circle,rgba(39,215,255,.20),transparent 70%);
    }
    .icon-line{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;
      margin-bottom:18px;
      background:linear-gradient(135deg,rgba(39,215,255,.16),rgba(124,92,255,.12));
      border:1px solid rgba(39,215,255,.20);
      color:#7debff;
      font-weight:900;
    }
    .feature-card h3{font-size:22px;margin-bottom:12px}
    .feature-card p{color:var(--muted);margin-bottom:0}
    .feature-list{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:12px}
    .feature-list li{display:flex;gap:10px;color:#d7e8f5}
    .check{color:var(--mint);font-weight:900}
    .channel-strip{
      padding:22px;
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(39,215,255,.08),rgba(124,92,255,.08));
      border:1px solid rgba(125,199,255,.15);
      display:grid;
      grid-template-columns:1fr auto;
      gap:20px;
      align-items:center;
      margin-top:24px;
    }
    .channel-strip h3{margin:0 0 6px;font-size:22px}
    .channel-strip p{margin:0;color:var(--muted)}
    .masonry{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      grid-auto-rows:72px;
      gap:18px;
    }
    .topic-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:linear-gradient(135deg,rgba(14,33,54,.92),rgba(12,28,48,.66));
      box-shadow:var(--shadow-soft);
      transition:var(--transition);
    }
    .topic-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
    .topic-card img{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.56;
      filter:saturate(1.05) brightness(.82);
      transition:transform .45s ease,opacity .25s ease;
    }
    .topic-card:hover img{transform:scale(1.05);opacity:.68}
    .topic-card::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(5,11,20,.15),rgba(5,11,20,.84));
    }
    .topic-content{
      position:absolute;
      inset:auto 0 0 0;
      padding:24px;
      z-index:1;
    }
    .topic-content h3{font-size:23px;line-height:1.35;margin:10px 0 8px}
    .topic-content p{color:#c2d5e6;margin:0 0 14px;font-size:14px}
    .topic-card.big{grid-column:span 5;grid-row:span 5}
    .topic-card.tall{grid-column:span 4;grid-row:span 5}
    .topic-card.wide{grid-column:span 7;grid-row:span 3}
    .topic-card.small{grid-column:span 3;grid-row:span 3}
    .plans-section{
      background:
        linear-gradient(180deg,rgba(5,11,20,.2),rgba(5,11,20,.72)),
        radial-gradient(circle at 50% 20%,rgba(39,215,255,.10),transparent 34%);
      border-block:1px solid rgba(125,199,255,.10);
    }
    .plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .plan-card{padding:28px;position:relative}
    .plan-card.recommended{
      background:linear-gradient(180deg,rgba(39,215,255,.12),rgba(12,28,48,.70));
      border-color:rgba(39,215,255,.36);
      transform:translateY(-8px);
    }
    .plan-card h3{font-size:24px;margin:12px 0 8px}
    .plan-card p{color:var(--muted)}
    .plan-card ul{padding:0;margin:22px 0;list-style:none;display:grid;gap:12px;color:#d7e8f5}
    .plan-card li{display:flex;gap:10px}
    .price-note{color:#7debff;font-size:14px;font-weight:700}
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      counter-reset:step;
    }
    .step{
      padding:24px;
      position:relative;
      min-height:240px;
    }
    .step::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      width:46px;height:46px;
      align-items:center;justify-content:center;
      border-radius:15px;
      color:#07111f;
      font-weight:900;
      background:linear-gradient(135deg,var(--mint),var(--cyan));
      margin-bottom:20px;
    }
    .step h3{font-size:21px;margin-bottom:10px}
    .step p{color:var(--muted);margin-bottom:0}
    .insight{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:24px;
      align-items:center;
    }
    .insight-image{
      min-height:430px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line);
      position:relative;
      background:linear-gradient(135deg,#102a43,#081827);
      box-shadow:var(--shadow);
    }
    .insight-image img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.72}
    .insight-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.08),rgba(5,11,20,.62))}
    .insight-panel{padding:32px}
    .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .metric{padding:16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(125,199,255,.12)}
    .metric strong{display:block;color:var(--mint);font-size:26px}
    .metric span{font-size:13px;color:var(--muted)}
    .faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
    .faq-item{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(12,28,48,.58);
      overflow:hidden;
      transition:var(--transition);
    }
    .faq-question{
      width:100%;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      background:transparent;
      color:#eaf8ff;
      text-align:left;
      font-weight:700;
      font-size:17px;
    }
    .faq-question::after{
      content:"+";
      color:#7debff;
      font-size:24px;
      transition:var(--transition);
      flex:0 0 auto;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      color:var(--muted);
      padding:0 20px;
      transition:max-height .28s ease,padding .28s ease;
    }
    .faq-item.open{border-color:rgba(39,215,255,.42);background:rgba(39,215,255,.06)}
    .faq-item.open .faq-question{color:#7debff}
    .faq-item.open .faq-question::after{transform:rotate(45deg)}
    .faq-item.open .faq-answer{max-height:220px;padding:0 20px 18px}
    .cta-panel{
      display:grid;
      grid-template-columns:1fr .9fr;
      gap:28px;
      align-items:stretch;
      padding:34px;
      border-radius:32px;
      border:1px solid rgba(39,215,255,.22);
      background:
        radial-gradient(circle at 18% 0%,rgba(39,215,255,.16),transparent 36%),
        radial-gradient(circle at 84% 100%,rgba(124,92,255,.16),transparent 34%),
        rgba(12,28,48,.72);
      box-shadow:var(--shadow);
    }
    .cta-panel h2{font-size:clamp(28px,3.2vw,44px);line-height:1.22;margin-bottom:14px}
    .cta-panel p{color:#c7d9e8;margin-bottom:24px}
    .form-card{padding:24px;border-radius:24px;background:rgba(5,11,20,.40);border:1px solid rgba(125,199,255,.13)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    label{color:#d8e9f7;font-size:14px;font-weight:700}
    input,select,textarea{
      width:100%;
      border:1px solid rgba(148,190,255,.18);
      background:rgba(255,255,255,.055);
      color:#eef8ff;
      border-radius:15px;
      padding:12px 14px;
      outline:none;
      transition:var(--transition);
    }
    textarea{min-height:104px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#7f98ad}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(39,215,255,.58);
      box-shadow:0 0 0 4px rgba(39,215,255,.10);
      background:rgba(39,215,255,.06);
    }
    select option{background:#07111f;color:#eef8ff}
    .form-hint{font-size:12px;color:var(--soft);margin:10px 0 0}
    .site-footer{
      background:#050b14;
      border-top:1px solid rgba(125,199,255,.12);
      padding:58px 0 28px;
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr .9fr;gap:28px}
    .footer-brand p{color:var(--muted);margin:16px 0 0}
    .footer-col h3{font-size:16px;margin:0 0 14px;color:#eaf8ff}
    .footer-links{display:grid;gap:10px}
    .footer-links a,.footer-links span{color:#a9c0d4;font-size:14px;transition:var(--transition)}
    .footer-links a:hover{color:#7debff;transform:translateX(3px)}
    .copyright{
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(125,199,255,.10);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#8197aa;
      font-size:13px;
    }
    @media (max-width:1100px){
      .search-pill{width:230px}
      .hero-grid,.insight,.cta-panel{grid-template-columns:1fr}
      .hero{min-height:auto}
      .asym-grid{grid-template-columns:1fr 1fr}
      .feature-card.large{grid-row:auto}
      .feature-card.wide{grid-column:span 2}
      .topic-card.big,.topic-card.tall{grid-column:span 6}
      .topic-card.wide{grid-column:span 12}
      .topic-card.small{grid-column:span 6}
      .plan-grid,.timeline{grid-template-columns:repeat(2,1fr)}
      .plan-card.recommended{transform:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .brand-row{min-height:64px;border-bottom:0}
      .brand-tools,.trend-bar{display:none}
      .menu-toggle{display:block}
      .nav-row{
        display:none;
        padding:0 0 14px;
      }
      .site-header.menu-open .nav-row{display:block}
      .main-nav{display:grid;grid-template-columns:1fr;gap:8px}
      .main-nav a{border:1px solid rgba(125,199,255,.12);background:rgba(255,255,255,.04)}
      .hero{padding:54px 0 64px}
      .hero-kpis{grid-template-columns:repeat(2,1fr)}
      .section{padding:70px 0}
      .section-title{display:block}
      .asym-grid,.plan-grid,.timeline,.footer-grid,.form-grid{grid-template-columns:1fr}
      .feature-card.wide{grid-column:auto}
      .masonry{grid-auto-rows:auto;display:grid;grid-template-columns:1fr}
      .topic-card,.topic-card.big,.topic-card.tall,.topic-card.wide,.topic-card.small{
        grid-column:auto;grid-row:auto;min-height:320px;
      }
      .metric-row{grid-template-columns:1fr}
      .channel-strip{grid-template-columns:1fr}
      .cta-panel{padding:24px}
      .field.full{grid-column:auto}
    }
    @media (max-width:520px){
      .logo-text span{display:none}
      .logo-mark{width:36px;height:36px}
      .hero h1{letter-spacing:-.8px}
      .hero-actions .btn{width:100%}
      .quick-grid,.hero-kpis{grid-template-columns:1fr}
      .feature-card,.radar-card,.insight-panel{padding:20px}
      .topic-content{padding:20px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root{
      --bg:#07111f;
      --bg-2:#081827;
      --bg-3:#0b1220;
      --panel:rgba(12,28,48,.66);
      --panel-strong:rgba(15,38,64,.82);
      --panel-soft:rgba(20,52,82,.42);
      --line:rgba(125,199,255,.16);
      --line-strong:rgba(39,215,255,.42);
      --text:#eef7ff;
      --muted:#afc4d8;
      --weak:#7e96ad;
      --cyan:#27d7ff;
      -- mint:#35f2c2;
      --mint:#35f2c2;
      --blue:#4f8cff;
      --purple:#7c5cff;
      --amber:#ffb86b;
      --danger:#ff6d8d;
      --shadow:0 20px 60px rgba(0,0,0,.34);
      --shadow-soft:0 14px 38px rgba(0,0,0,.22);
      --radius-lg:28px;
      --radius-md:22px;
      --radius-sm:14px;
      --radius-pill:999px;
      --container:1200px;
      --transition:.22s ease;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 6%,rgba(39,215,255,.18),transparent 28%),
        radial-gradient(circle at 88% 10%,rgba(124,92,255,.18),transparent 30%),
        radial-gradient(circle at 42% 78%,rgba(53,242,194,.08),transparent 30%),
        linear-gradient(180deg,var(--bg),var(--bg-3) 48%,#050b14);
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      background-image:
        linear-gradient(rgba(125,199,255,.04) 1px,transparent 1px),
        linear-gradient(90deg,rgba(125,199,255,.04) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.18));
      pointer-events:none;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(39,215,255,.28);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:80;
      backdrop-filter:blur(18px);
      background:rgba(5,13,25,.72);
      border-bottom:1px solid rgba(125,199,255,.12);
      transition:var(--transition);
    }
    .site-header.is-scrolled{
      background:rgba(5,11,20,.92);
      box-shadow:0 16px 40px rgba(0,0,0,.35);
      border-bottom-color:rgba(39,215,255,.22);
    }
    .topbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      min-height:58px;
      border-bottom:1px solid rgba(125,199,255,.08);
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:800;
      letter-spacing:.02em;
      background:linear-gradient(135deg,var(--cyan),var(--blue) 52%,var(--purple));
      box-shadow:0 0 26px rgba(39,215,255,.32),inset 0 1px 0 rgba(255,255,255,.32);
      position:relative;
      overflow:hidden;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:7px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:11px;
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.22}
    .logo-text strong{font-size:17px;letter-spacing:.01em}
    .logo-text span{font-size:12px;color:var(--muted);white-space:nowrap}
    .top-actions{display:flex;align-items:center;gap:12px}
    .search-pill{
      min-width:285px;
      height:38px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      border:1px solid rgba(148,190,255,.18);
      border-radius:var(--radius-pill);
      color:var(--weak);
      background:rgba(255,255,255,.04);
      transition:var(--transition);
    }
    .search-pill:hover{border-color:var(--line-strong);background:rgba(39,215,255,.08);color:var(--muted)}
    .mini-contact{
      height:38px;
      display:inline-flex;
      align-items:center;
      padding:0 14px;
      border-radius:var(--radius-pill);
      color:var(--text);
      font-size:13px;
      background:linear-gradient(135deg,rgba(39,215,255,.12),rgba(124,92,255,.12));
      border:1px solid rgba(39,215,255,.2);
    }
    .nav-row{
      min-height:48px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{
      position:relative;
      padding:9px 15px;
      border-radius:var(--radius-pill);
      color:var(--muted);
      font-size:14px;
      font-weight:600;
      border:1px solid transparent;
      transition:var(--transition);
    }
    .main-nav a::after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:4px;
      height:2px;
      transform:scaleX(0);
      transform-origin:center;
      border-radius:2px;
      background:linear-gradient(90deg,var(--cyan),var(--mint));
      transition:var(--transition);
    }
    .main-nav a:hover{color:#fff;background:rgba(39,215,255,.06)}
    .main-nav a:hover::after{transform:scaleX(1)}
    .main-nav a.active{
      color:#dffbff;
      background:rgba(39,215,255,.08);
      border-color:rgba(39,215,255,.22);
    }
    .trend-links{display:flex;align-items:center;gap:8px;min-width:0}
    .trend-label{font-size:12px;color:var(--weak)}
    .hotword{
      padding:5px 10px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(125,199,255,.1);
      color:var(--muted);
      font-size:12px;
      white-space:nowrap;
    }
    .hotword.hot{color:#ffe0b7;border-color:rgba(255,184,107,.3);background:rgba(255,184,107,.08)}
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(125,199,255,.16);
      color:#fff;
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      margin:4px auto;
      border-radius:4px;
      background:#dffbff;
      transition:var(--transition);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 20px;
      border-radius:var(--radius-pill);
      font-weight:700;
      color:#fff;
      transition:var(--transition);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,#22d3ee,var(--blue) 55%,var(--purple));
      box-shadow:0 0 24px rgba(39,215,255,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(39,215,255,.38)}
    .btn-secondary{
      background:rgba(255,255,255,.04);
      border-color:rgba(39,215,255,.26);
      color:#dffbff;
    }
    .btn-secondary:hover{background:rgba(39,215,255,.1);border-color:rgba(39,215,255,.52);transform:translateY(-2px)}
    .text-link{
      color:#7deeff;
      font-weight:700;
      display:inline-flex;
      align-items:center;
      gap:6px;
      transition:var(--transition);
    }
    .text-link span{transition:var(--transition)}
    .text-link:hover{color:#fff}
    .text-link:hover span{transform:translateX(4px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:var(--radius-pill);
      color:#bdf9ff;
      background:rgba(39,215,255,.09);
      border:1px solid rgba(39,215,255,.22);
      font-size:13px;
      font-weight:700;
    }
    .badge.amber{color:#ffe0b7;background:rgba(255,184,107,.1);border-color:rgba(255,184,107,.28)}
    .badge.mint{color:#cafff0;background:rgba(53,242,194,.08);border-color:rgba(53,242,194,.24)}
    .page-hero{
      position:relative;
      padding:82px 0 54px;
      overflow:hidden;
      border-bottom:1px solid rgba(125,199,255,.1);
    }
    .page-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(7,17,31,.94),rgba(7,17,31,.72),rgba(7,17,31,.96)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      z-index:-2;
    }
    .page-hero::after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-160px;
      top:-210px;
      background:radial-gradient(circle,rgba(39,215,255,.24),transparent 62%);
      filter:blur(4px);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) 390px;
      gap:34px;
      align-items:end;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb a{color:#aeefff}
    .breadcrumb span:last-child{color:var(--weak)}
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px,5vw,58px);
      line-height:1.08;
      margin-bottom:18px;
      letter-spacing:-.02em;
    }
    .gradient-text{
      background:linear-gradient(90deg,#fff,var(--cyan) 45%,var(--mint));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
      margin-bottom:26px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .glass-card{
      background:var(--panel);
      border:1px solid var(--line);
      backdrop-filter:blur(14px);
      box-shadow:var(--shadow-soft);
      border-radius:var(--radius-md);
      transition:var(--transition);
      position:relative;
      overflow:hidden;
    }
    .glass-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg,rgba(255,255,255,.08),transparent 34%,rgba(39,215,255,.04));
      opacity:.7;
      pointer-events:none;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow);
    }
    .keyword-panel{padding:24px}
    .keyword-panel h2{font-size:20px;margin-bottom:14px}
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
    .metric-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      border-top:1px solid rgba(125,199,255,.12);
      padding-top:18px;
    }
    .metric{
      padding:12px 10px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(125,199,255,.1);
    }
    .metric strong{display:block;color:#8df6ff;font-size:22px;line-height:1.1}
    .metric span{display:block;color:var(--weak);font-size:12px;margin-top:5px}
    .section{padding:84px 0}
    .section.tight{padding-top:52px}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:#7deeff;
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
      text-transform:uppercase;
      margin-bottom:8px;
    }
    .section h2{
      font-size:clamp(28px,3.4vw,42px);
      line-height:1.18;
      margin-bottom:0;
      letter-spacing:-.01em;
    }
    .section-desc{
      max-width:540px;
      color:var(--muted);
      margin:0;
    }
    .filter-bar{
      display:flex;
      gap:10px;
      overflow-x:auto;
      padding:6px 0 4px;
      scrollbar-width:none;
      margin-bottom:30px;
    }
    .filter-bar::-webkit-scrollbar{display:none}
    .filter-chip{
      flex:0 0 auto;
      padding:10px 16px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(125,199,255,.14);
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      transition:var(--transition);
    }
    .filter-chip:hover{border-color:rgba(39,215,255,.38);color:#fff;background:rgba(39,215,255,.08)}
    .filter-chip.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(34,211,238,.9),rgba(79,140,255,.85));
      border-color:transparent;
      box-shadow:0 0 24px rgba(39,215,255,.22);
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:28px;
      align-items:start;
    }
    .feature-card{
      display:grid;
      grid-template-columns:.92fr 1fr;
      gap:0;
      margin-bottom:24px;
      min-height:310px;
    }
    .cover-wrap{
      position:relative;
      min-height:280px;
      overflow:hidden;
      background:linear-gradient(135deg,rgba(39,215,255,.18),rgba(124,92,255,.18));
    }
    .cover-wrap img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:100%;
      opacity:.86;
      transition:var(--transition);
    }
    .cover-wrap::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(5,11,20,.06),rgba(5,11,20,.72));
    }
    .feature-card:hover .cover-wrap img{transform:scale(1.04);filter:brightness(1.12)}
    .feature-body{padding:30px}
    .feature-body h2{font-size:31px;margin:12px 0 14px}
    .feature-body p{color:var(--muted);margin-bottom:20px}
    .meta-line{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--weak);
      font-size:13px;
      margin-top:18px;
    }
    .guide-list{display:grid;gap:16px}
    .guide-item{
      display:grid;
      grid-template-columns:188px minmax(0,1fr);
      gap:18px;
      padding:18px;
      border-radius:var(--radius-md);
      background:rgba(12,28,48,.58);
      border:1px solid rgba(125,199,255,.14);
      backdrop-filter:blur(12px);
      transition:var(--transition);
      overflow:hidden;
    }
    .guide-item:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      background:rgba(15,38,64,.78);
      box-shadow:var(--shadow-soft);
    }
    .guide-thumb{
      position:relative;
      border-radius:18px;
      overflow:hidden;
      min-height:128px;
      background:linear-gradient(135deg,rgba(39,215,255,.18),rgba(124,92,255,.18));
    }
    .guide-thumb img{width:100%;height:100%;object-fit:cover;transition:var(--transition);filter:saturate(1.08) brightness(.9)}
    .guide-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(5,11,20,.62))}
    .guide-item:hover .guide-thumb img{transform:scale(1.05);filter:saturate(1.14) brightness(1.04)}
    .guide-copy h3{
      font-size:21px;
      line-height:1.35;
      margin:8px 0 8px;
      transition:var(--transition);
    }
    .guide-item:hover .guide-copy h3{color:#8df6ff}
    .guide-copy p{color:var(--muted);font-size:15px;margin-bottom:12px}
    .side-stack{display:grid;gap:16px;position:sticky;top:126px}
    .side-card{padding:20px}
    .side-card h2,.side-card h3{font-size:19px;margin-bottom:14px}
    .side-search{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid rgba(148,190,255,.18);
      background:rgba(255,255,255,.04);
      color:var(--weak);
    }
    .topic-list{display:grid;gap:10px}
    .topic-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 13px;
      border-radius:16px;
      background:rgba(255,255,255,.035);
      border:1px solid rgba(125,199,255,.1);
      color:var(--muted);
      transition:var(--transition);
    }
    .topic-item:hover{color:#fff;border-color:rgba(39,215,255,.34);background:rgba(39,215,255,.07)}
    .topic-item em{font-style:normal;color:var(--cyan);font-size:12px}
    .quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .quick-box{
      min-height:76px;
      padding:13px;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(39,215,255,.08),rgba(124,92,255,.07));
      border:1px solid rgba(125,199,255,.12);
      color:#dffbff;
      font-weight:700;
      transition:var(--transition);
    }
    .quick-box span{display:block;color:var(--weak);font-size:12px;font-weight:500;margin-top:4px}
    .quick-box:hover{transform:translateY(-2px);border-color:rgba(53,242,194,.3)}
    .scenario-grid{
      display:grid;
      grid-template-columns:1.2fr .9fr .9fr;
      gap:18px;
    }
    .scenario-card{padding:24px;min-height:220px}
    .scenario-card.large{
      grid-row:span 2;
      min-height:458px;
      background:
        linear-gradient(180deg,rgba(5,11,20,.2),rgba(5,11,20,.76)),
        url("/assets/images/coverpic/cover-3.webp") center/cover no-repeat;
    }
    .icon-line{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:rgba(39,215,255,.08);
      border:1px solid rgba(39,215,255,.22);
      color:#8df6ff;
      font-weight:900;
      margin-bottom:16px;
    }
    .scenario-card h3{font-size:22px;margin-bottom:10px}
    .scenario-card p{color:var(--muted);margin-bottom:0}
    .process-wrap{
      position:relative;
      padding:30px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(14,33,54,.88),rgba(8,24,39,.72)),
        radial-gradient(circle at 10% 20%,rgba(39,215,255,.14),transparent 28%);
      border:1px solid rgba(125,199,255,.14);
      overflow:hidden;
    }
    .process-wrap::before{
      content:"";
      position:absolute;
      left:48px;
      right:48px;
      top:76px;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--cyan),var(--purple),transparent);
      opacity:.42;
    }
    .process-grid{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step{
      padding:22px;
      border-radius:22px;
      background:rgba(5,11,20,.42);
      border:1px solid rgba(125,199,255,.12);
      min-height:180px;
    }
    .step-num{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:linear-gradient(135deg,var(--cyan),var(--purple));
      box-shadow:0 0 22px rgba(39,215,255,.24);
      font-weight:900;
      margin-bottom:18px;
    }
    .step h3{font-size:20px;margin-bottom:8px}
    .step p{color:var(--muted);font-size:15px;margin:0}
    .faq-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:26px;
      align-items:start;
    }
    .faq-intro{padding:28px}
    .faq-intro p{color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border-radius:20px;
      background:rgba(12,28,48,.6);
      border:1px solid rgba(125,199,255,.14);
      overflow:hidden;
      transition:var(--transition);
    }
    .faq-item.active{border-color:rgba(39,215,255,.38);background:rgba(15,38,64,.76)}
    .faq-question{
      width:100%;
      min-height:62px;
      padding:0 20px;
      background:transparent;
      color:var(--text);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      text-align:left;
      font-weight:800;
    }
    .faq-question i{
      width:26px;
      height:26px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:rgba(39,215,255,.08);
      color:#7deeff;
      font-style:normal;
      transition:var(--transition);
    }
    .faq-item.active .faq-question{color:#7deeff}
    .faq-item.active .faq-question i{transform:rotate(45deg)}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.active .faq-answer{display:block}
    .cta-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) 410px;
      gap:28px;
      padding:34px;
      border-radius:var(--radius-lg);
      background:
        radial-gradient(circle at 16% 16%,rgba(39,215,255,.16),transparent 32%),
        linear-gradient(135deg,rgba(12,28,48,.82),rgba(10,22,38,.72));
      border:1px solid rgba(39,215,255,.18);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      width:280px;
      height:280px;
      right:-110px;
      bottom:-120px;
      background:radial-gradient(circle,rgba(124,92,255,.24),transparent 65%);
      pointer-events:none;
    }
    .cta-panel h2{font-size:36px;line-height:1.2;margin-bottom:14px}
    .cta-panel p{color:var(--muted);max-width:680px}
    .consult-form{
      position:relative;
      z-index:1;
      display:grid;
      gap:12px;
      padding:20px;
      border-radius:24px;
      background:rgba(5,11,20,.38);
      border:1px solid rgba(125,199,255,.14);
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{
      width:100%;
      min-height:46px;
      padding:12px 14px;
      color:#fff;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,190,255,.18);
      border-radius:15px;
      outline:none;
      transition:var(--transition);
    }
    textarea.field{min-height:94px;resize:vertical}
    .field::placeholder{color:#7690a8}
    .field:focus{
      border-color:rgba(39,215,255,.62);
      box-shadow:0 0 0 4px rgba(39,215,255,.1);
      background:rgba(39,215,255,.055);
    }
    .form-note{font-size:12px;color:var(--weak);margin:0}
    .pager{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      justify-content:center;
      margin-top:28px;
    }
    .pager a,.pager span{
      min-width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(125,199,255,.12);
      color:var(--muted);
      font-weight:800;
      transition:var(--transition);
    }
    .pager span{
      color:#fff;
      background:linear-gradient(135deg,var(--cyan),var(--blue));
      border-color:transparent;
      box-shadow:0 0 22px rgba(39,215,255,.24);
    }
    .pager a:hover{color:#fff;border-color:rgba(39,215,255,.38);background:rgba(39,215,255,.08)}
    .site-footer{
      background:#050b14;
      border-top:1px solid rgba(125,199,255,.12);
      padding:58px 0 28px;
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--cyan),var(--purple),transparent);
      opacity:.55;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr .75fr 1fr;
      gap:28px;
      margin-bottom:34px;
    }
    .footer-brand p{
      color:var(--muted);
      margin:18px 0 0;
      max-width:420px;
      font-size:14px;
    }
    .footer-col h3{font-size:16px;margin:0 0 14px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-links span{
      color:var(--muted);
      font-size:14px;
      transition:var(--transition);
    }
    .footer-links a:hover{color:#7deeff;transform:translateX(3px)}
    .copyright{
      padding-top:22px;
      border-top:1px solid rgba(125,199,255,.1);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1080px){
      .search-pill{min-width:220px}
      .trend-links{display:none}
      .hero-grid,.content-layout,.faq-grid,.cta-panel{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,1fr)}
      .scenario-grid{grid-template-columns:1fr 1fr}
      .scenario-card.large{grid-row:auto;grid-column:span 2;min-height:340px}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .process-wrap::before{display:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      .container{width:min(100% - 28px,var(--container))}
      .topbar{min-height:64px;border-bottom:0}
      .top-actions,.nav-row{display:none}
      .menu-toggle{display:block}
      .site-header.menu-open .nav-row{
        display:flex;
        flex-direction:column;
        align-items:stretch;
        padding:0 0 14px;
      }
      .site-header.menu-open .main-nav{
        display:grid;
        grid-template-columns:1fr;
        gap:8px;
        padding-top:8px;
      }
      .site-header.menu-open .trend-links{
        display:flex;
        overflow-x:auto;
        padding-bottom:4px;
      }
      .site-header.menu-open .top-actions{
        display:flex;
        flex-direction:column;
        align-items:stretch;
        padding-bottom:12px;
      }
      .site-header.menu-open .search-pill{min-width:0;width:100%}
      .page-hero{padding:58px 0 42px}
      .hero-actions .btn{width:100%}
      .feature-card,.guide-item{grid-template-columns:1fr}
      .cover-wrap,.guide-thumb{min-height:210px}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .side-stack{grid-template-columns:1fr}
      .scenario-grid,.process-grid{grid-template-columns:1fr}
      .scenario-card.large{grid-column:auto}
      .form-row{grid-template-columns:1fr}
      .cta-panel{padding:24px}
      .cta-panel h2{font-size:29px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .logo-text span{display:none}
      .logo-mark{width:39px;height:39px}
      .keyword-panel{padding:20px}
      .metric-row{grid-template-columns:1fr}
      .feature-body{padding:22px}
      .feature-body h2{font-size:25px}
      .guide-item{padding:14px}
      .quick-grid{grid-template-columns:1fr}
      .pager a,.pager span{min-width:38px;height:38px}
    }