/* roulang page: index */
:root{
      --bg:#08090f;
      --bg-soft:#10121c;
      --panel:#151824;
      --panel-2:#1b2030;
      --surface:#ffffff;
      --surface-soft:#f4f6fb;
      --text:#f7f9ff;
      --text-dark:#161923;
      --muted:#9aa4b7;
      --muted-dark:#5f6878;
      --line:rgba(255,255,255,.12);
      --line-dark:#e4e8f0;
      --cyan:#22e6c2;
      --cyan-2:#12b99f;
      --amber:#f0a43a;
      --red-soft:#fff3e5;
      --purple:#6e5cff;
      --shadow:0 18px 55px rgba(7,10,18,.22);
      --shadow-soft:0 12px 34px rgba(12,18,32,.10);
      --radius-lg:24px;
      --radius:18px;
      --radius-sm:12px;
      --container:1200px;
      --header-h:74px;
      --font:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:var(--font);
      color:var(--text-dark);
      background:var(--surface-soft);
      line-height:1.78;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    input,select,textarea{
      width:100%;
      border:1px solid var(--line-dark);
      border-radius:14px;
      padding:13px 14px;
      background:#fff;
      color:var(--text-dark);
      outline:none;
      transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{
      border-color:var(--cyan-2);
      box-shadow:0 0 0 4px rgba(34,230,194,.16);
    }
    textarea{resize:vertical;min-height:110px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      height:var(--header-h);
      background:rgba(8,9,15,.88);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(16px);
    }
    .nav-wrap{
      height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:#fff;
      font-weight:800;
      letter-spacing:.2px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#06100e;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),#8fffee 48%,var(--amber));
      box-shadow:0 0 28px rgba(34,230,194,.24);
      flex:none;
    }
    .brand-text{font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      color:#dfe6f3;
    }
    .nav-links a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      font-size:15px;
      transition:.2s ease;
    }
    .nav-links a:hover,.nav-links a:focus{
      color:#fff;
      background:rgba(255,255,255,.08);
      outline:none;
    }
    .nav-links a.active{
      color:#071210;
      background:var(--cyan);
      font-weight:700;
    }
    .nav-action{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:999px;
      font-weight:700;
      line-height:1.2;
      transition:.22s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#05100e;
      background:var(--cyan);
      box-shadow:0 10px 28px rgba(34,230,194,.22);
    }
    .btn-primary:hover,.btn-primary:focus{
      background:#5ff3db;
      transform:translateY(-2px);
      box-shadow:0 15px 36px rgba(34,230,194,.32);
      outline:none;
    }
    .btn-ghost{
      color:#fff;
      border-color:rgba(255,255,255,.26);
      background:rgba(255,255,255,.05);
    }
    .btn-ghost:hover,.btn-ghost:focus{
      border-color:var(--cyan);
      color:var(--cyan);
      transform:translateY(-2px);
      outline:none;
    }
    .btn-dark{
      color:#fff;
      background:#111521;
      border-color:#111521;
    }
    .btn-dark:hover,.btn-dark:focus{
      color:#06100e;
      background:var(--cyan);
      border-color:var(--cyan);
      transform:translateY(-2px);
      outline:none;
    }

    .hero{
      position:relative;
      min-height:760px;
      display:flex;
      align-items:center;
      color:#fff;
      background:
        radial-gradient(circle at 15% 18%,rgba(34,230,194,.18),transparent 30%),
        radial-gradient(circle at 80% 10%,rgba(110,92,255,.22),transparent 32%),
        linear-gradient(120deg,rgba(8,9,15,.88),rgba(8,9,15,.72)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      overflow:hidden;
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:auto -10% -160px -10%;
      height:280px;
      background:linear-gradient(180deg,transparent,var(--surface-soft) 72%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:52px;
      align-items:center;
      padding:88px 0 110px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 12px;
      border:1px solid rgba(34,230,194,.38);
      border-radius:999px;
      color:#bafcf0;
      background:rgba(34,230,194,.08);
      font-size:14px;
      font-weight:700;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 16px var(--cyan);
    }
    h1{
      margin-top:24px;
      font-size:clamp(32px,4.2vw,52px);
      line-height:1.14;
      letter-spacing:-.5px;
      max-width:760px;
    }
    .hero-lead{
      margin-top:22px;
      max-width:710px;
      color:#d4dceb;
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
    .keyword-strip{
      margin-top:34px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      color:#2a3444;
      background:#eef3f8;
      border:1px solid #dfe6f0;
    }
    .tag.dark{
      color:#dffdf7;
      background:rgba(255,255,255,.07);
      border-color:rgba(255,255,255,.15);
    }
    .hero-board{
      position:relative;
      border:1px solid rgba(255,255,255,.14);
      border-radius:30px;
      background:linear-gradient(180deg,rgba(21,24,36,.86),rgba(15,18,28,.76));
      box-shadow:0 30px 80px rgba(0,0,0,.38);
      overflow:hidden;
    }
    .hero-board:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(34,230,194,.08) 1px,transparent 1px),linear-gradient(0deg,rgba(255,255,255,.05) 1px,transparent 1px);
      background-size:34px 34px;
      opacity:.35;
      pointer-events:none;
    }
    .board-head,.board-body,.board-foot{position:relative;z-index:1}
    .board-head{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:22px 24px;
      border-bottom:1px solid var(--line);
    }
    .board-title{font-weight:800;font-size:18px}
    .status{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:#bafcf0;
      font-size:13px;
    }
    .status i{
      width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);
    }
    .board-body{padding:22px 24px 10px}
    .score-row{
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:16px;
      padding:18px 0;
      border-bottom:1px solid rgba(255,255,255,.09);
    }
    .team{
      display:flex;
      flex-direction:column;
      gap:4px;
    }
    .team:last-child{text-align:right}
    .team b{font-size:19px}
    .team span{font-size:13px;color:var(--muted)}
    .score{
      min-width:92px;
      text-align:center;
      padding:10px 14px;
      border-radius:16px;
      color:#081210;
      background:linear-gradient(135deg,var(--cyan),#eafffa);
      font-size:24px;
      font-weight:900;
      line-height:1;
    }
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:18px;
    }
    .metric{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
    }
    .metric strong{
      display:block;
      font-size:25px;
      line-height:1.1;
      color:#fff;
    }
    .metric span{display:block;margin-top:7px;color:var(--muted);font-size:13px}
    .board-foot{
      margin:12px 24px 24px;
      padding:16px;
      border-radius:18px;
      background:rgba(240,164,58,.1);
      border:1px solid rgba(240,164,58,.26);
      color:#ffe0b4;
      font-size:14px;
    }

    main{background:var(--surface-soft)}
    .section{padding:86px 0}
    .section.compact{padding:64px 0}
    .section.dark{
      color:#fff;
      background:
        radial-gradient(circle at 12% 10%,rgba(34,230,194,.12),transparent 32%),
        linear-gradient(180deg,#0b0d15,#111522);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:30px;
      align-items:end;
      margin-bottom:34px;
    }
    .section-kicker{
      display:inline-block;
      margin-bottom:10px;
      color:var(--cyan-2);
      font-weight:800;
      font-size:14px;
    }
    .dark .section-kicker{color:var(--cyan)}
    h2{
      font-size:clamp(24px,3vw,36px);
      line-height:1.25;
      letter-spacing:-.2px;
    }
    .section-desc{
      max-width:610px;
      color:var(--muted-dark);
      font-size:16px;
    }
    .dark .section-desc{color:#b8c2d3}
    .card{
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line-dark);
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
      overflow:hidden;
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:rgba(18,185,159,.45);
      box-shadow:0 18px 42px rgba(12,18,32,.14);
    }
    .dark-card{
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.13);
      box-shadow:none;
    }
    .dark-card:hover{border-color:rgba(34,230,194,.45);box-shadow:0 20px 50px rgba(0,0,0,.2)}
    .insight-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:26px;
      align-items:stretch;
    }
    .feature-panel{
      padding:30px;
      min-height:330px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.90),rgba(255,255,255,.96)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .feature-panel h3{font-size:25px;line-height:1.3;margin-bottom:14px}
    .feature-panel p{color:var(--muted-dark);max-width:670px}
    .feature-list{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-top:24px;
    }
    .mini-item{
      padding:14px;
      border-radius:16px;
      background:rgba(244,246,251,.84);
      border:1px solid #e3e9f2;
    }
    .mini-item b{display:block;margin-bottom:3px}
    .mini-item span{color:var(--muted-dark);font-size:14px}
    .rank-panel{
      padding:26px;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .rank-item{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:14px;
      border-radius:16px;
      background:#f7f9fc;
      border:1px solid #e8edf5;
    }
    .rank-no{
      width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
      background:#111521;color:var(--cyan);font-weight:900;flex:none;
    }
    .rank-item p{color:var(--muted-dark);font-size:14px;margin-top:2px}

    .timeline{
      position:relative;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:18px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      top:38px;
      left:7%;
      right:7%;
      height:2px;
      background:linear-gradient(90deg,transparent,var(--cyan),rgba(34,230,194,.45),transparent);
    }
    .time-node{
      position:relative;
      padding:62px 18px 20px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line-dark);
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
    }
    .time-node:hover{transform:translateY(-3px);border-color:rgba(18,185,159,.5)}
    .dot{
      position:absolute;
      top:26px;
      left:18px;
      width:25px;
      height:25px;
      border-radius:50%;
      background:var(--cyan);
      border:5px solid #dffcf7;
      box-shadow:0 0 0 5px rgba(34,230,194,.12);
    }
    .time-node.highlight .dot{background:var(--amber);border-color:#fff0d5;box-shadow:0 0 0 5px rgba(240,164,58,.15)}
    .time-node h3{font-size:18px;margin-bottom:8px}
    .time-node p{font-size:14px;color:var(--muted-dark)}
    .time-label{
      display:inline-flex;
      margin-top:12px;
      padding:5px 9px;
      border-radius:999px;
      color:#0b3d36;
      background:#dcfbf5;
      font-size:12px;
      font-weight:800;
    }

    .score-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:26px;
      align-items:start;
    }
    .score-note{
      padding:30px;
      color:#fff;
      background:
        linear-gradient(150deg,rgba(17,21,33,.94),rgba(21,30,45,.86)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .score-note h3{font-size:25px;line-height:1.3;margin-bottom:14px}
    .score-note p{color:#cbd5e5}
    .notice{
      margin-top:22px;
      padding:16px;
      border-radius:16px;
      color:#ffe2b8;
      background:rgba(240,164,58,.11);
      border:1px solid rgba(240,164,58,.28);
      font-size:14px;
    }
    .score-table{
      padding:8px;
      background:#fff;
    }
    .table-row{
      display:grid;
      grid-template-columns:1.1fr 1.1fr .9fr 1.1fr;
      gap:12px;
      padding:16px 18px;
      border-bottom:1px solid #edf1f6;
      align-items:center;
    }
    .table-row:last-child{border-bottom:0}
    .table-row.head{
      color:#606b7a;
      font-size:13px;
      font-weight:800;
      background:#f6f8fc;
      border-radius:14px;
      border-bottom:0;
    }
    .score-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:72px;
      padding:6px 10px;
      border-radius:999px;
      color:#06100e;
      background:#dffcf7;
      font-weight:900;
    }

    .manual{
      display:grid;
      grid-template-columns:300px 1fr;
      gap:26px;
    }
    .manual-nav{
      padding:20px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line-dark);
      box-shadow:var(--shadow-soft);
      align-self:start;
      position:sticky;
      top:96px;
    }
    .manual-nav a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:13px 14px;
      border-radius:14px;
      color:#334155;
      font-weight:700;
      transition:.2s ease;
    }
    .manual-nav a:hover{background:#effaf8;color:#087667}
    .manual-nav a.active{background:#111521;color:#fff}
    .manual-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .manual-card{padding:24px}
    .manual-card .num{
      display:inline-grid;
      place-items:center;
      width:36px;height:36px;
      border-radius:12px;
      background:#111521;
      color:var(--cyan);
      font-weight:900;
      margin-bottom:14px;
    }
    .manual-card h3{font-size:20px;margin-bottom:8px}
    .manual-card p{color:var(--muted-dark)}

    .check-layout{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
    }
    .check-card{
      padding:28px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.13);
    }
    .check-card.warn{border-color:rgba(240,164,58,.33);background:rgba(240,164,58,.08)}
    .check-card h3{font-size:22px;margin-bottom:18px}
    .check-list{list-style:none;display:grid;gap:13px}
    .check-list li{
      display:flex;
      gap:11px;
      color:#d7dfeb;
    }
    .check-list li:before{
      content:"✓";
      width:24px;height:24px;border-radius:8px;display:grid;place-items:center;flex:none;
      color:#06100e;background:var(--cyan);font-weight:900;font-size:13px;
      margin-top:2px;
    }
    .warn .check-list li:before{
      content:"!";
      background:var(--amber);
    }

    .articles{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
    }
    .article-main{
      min-height:470px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      color:#fff;
      background:
        linear-gradient(180deg,rgba(8,9,15,.05),rgba(8,9,15,.86)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      padding:28px;
    }
    .article-main h3{font-size:28px;line-height:1.3;margin:12px 0}
    .article-main p{color:#d7dfeb}
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
      color:#bac5d6;
      font-size:13px;
    }
    .article-side{
      display:grid;
      gap:18px;
    }
    .article-item{
      display:grid;
      grid-template-columns:160px 1fr;
      gap:18px;
      padding:14px;
      align-items:center;
    }
    .article-item img{
      width:160px;
      height:110px;
      object-fit:cover;
      border-radius:14px;
    }
    .article-item h3{font-size:18px;line-height:1.35;margin:7px 0}
    .article-item p{font-size:14px;color:var(--muted-dark)}
    .read-link{
      display:inline-flex;
      margin-top:10px;
      color:#087667;
      font-weight:800;
      font-size:14px;
    }
    .read-link:hover{color:var(--cyan-2)}

    .proof-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .proof-card{
      padding:24px;
      text-align:center;
    }
    .proof-card strong{
      display:block;
      font-size:34px;
      line-height:1.1;
      color:#111521;
    }
    .proof-card span{display:block;margin-top:8px;color:var(--muted-dark);font-size:14px}

    .faq-list{
      display:grid;
      gap:14px;
      max-width:920px;
      margin:0 auto;
    }
    .faq-item{
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line-dark);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:20px;
      text-align:left;
      padding:20px 22px;
      color:var(--text-dark);
      background:#fff;
      font-weight:800;
    }
    .faq-q span:last-child{
      width:26px;height:26px;border-radius:50%;
      display:grid;place-items:center;
      background:#eef3f8;color:#111521;flex:none;
      transition:.2s ease;
    }
    .faq-a{
      display:none;
      padding:0 22px 20px;
      color:var(--muted-dark);
    }
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{background:var(--cyan);transform:rotate(45deg)}

    .subscribe{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:stretch;
      padding:34px;
      border-radius:30px;
      background:
        radial-gradient(circle at 10% 20%,rgba(34,230,194,.15),transparent 32%),
        linear-gradient(135deg,#111521,#1b2132);
      color:#fff;
      box-shadow:var(--shadow);
    }
    .subscribe h2{margin-bottom:14px}
    .subscribe p{color:#c8d2e1}
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .form-grid .full{grid-column:1/-1}
    .form-card{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.13);
    }
    .form-card label{
      display:block;
      margin-bottom:7px;
      color:#e8eef8;
      font-size:14px;
      font-weight:700;
    }
    .privacy{
      margin-top:13px;
      color:#aeb9ca;
      font-size:13px;
      line-height:1.65;
    }
    .site-footer{
      color:#cbd5e5;
      background:#08090f;
      padding:54px 0 28px;
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:34px;
      align-items:start;
      padding-bottom:32px;
      border-bottom:1px solid var(--line);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
      font-size:20px;
      margin-bottom:14px;
    }
    .footer-text{max-width:720px;color:#9da8ba;font-size:14px}
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.1);
      color:#d9e2ef;
      font-size:14px;
      transition:.2s ease;
    }
    .footer-links a:hover,.footer-links a:focus{
      color:var(--cyan);
      border-color:rgba(34,230,194,.4);
      outline:none;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      padding-top:22px;
      color:#7f8898;
      font-size:13px;
    }

    @media (max-width:1024px){
      .hero{min-height:auto}
      .hero-grid,.insight-grid,.score-layout,.manual,.articles,.subscribe{
        grid-template-columns:1fr;
      }
      .manual-nav{position:static}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .timeline:before{display:none}
      .proof-grid{grid-template-columns:repeat(2,1fr)}
      .nav-links{
        position:absolute;
        left:20px;
        right:20px;
        top:calc(var(--header-h) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        background:rgba(8,9,15,.96);
        border:1px solid var(--line);
        border-radius:20px;
        box-shadow:var(--shadow);
      }
      .nav-links.show{display:flex}
      .nav-links a{text-align:center}
      .menu-toggle{display:grid;place-items:center}
      .nav-action .btn{display:none}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .site-header,.nav-wrap{height:66px}
      :root{--header-h:66px}
      .brand-text{font-size:16px;max-width:210px}
      .hero-grid{padding:60px 0 92px;gap:30px}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .feature-list,.manual-grid,.check-layout,.form-grid{grid-template-columns:1fr}
      .timeline{grid-template-columns:1fr}
      .metric-grid{grid-template-columns:1fr}
      .table-row{
        grid-template-columns:1fr;
        gap:6px;
        padding:16px;
      }
      .table-row.head{display:none}
      .table-row > div:before{
        content:attr(data-label);
        display:block;
        color:#7a8493;
        font-size:12px;
        font-weight:800;
        margin-bottom:3px;
      }
      .article-item{grid-template-columns:1fr}
      .article-item img{width:100%;height:190px}
      .article-main{min-height:360px}
      .proof-grid{grid-template-columns:1fr}
      .subscribe{padding:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .score-row{grid-template-columns:1fr;text-align:left}
      .team:last-child{text-align:left}
      .score{width:max-content}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .board-head{align-items:flex-start;flex-direction:column;gap:10px}
      .hero-board{border-radius:22px}
      .board-body{padding:18px}
      .board-foot{margin:10px 18px 18px}
      .feature-panel,.rank-panel,.score-note,.check-card{padding:22px}
      .article-main{padding:22px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }

/* roulang page: category1 */
:root{
  --ink:#11131b;
  --ink-2:#191c28;
  --panel:#202431;
  --paper:#f4f6f7;
  --white:#ffffff;
  --text:#202532;
  --muted:#6d7480;
  --line:#dfe4e7;
  --cyan:#35d8c1;
  --cyan-dark:#13a994;
  --amber:#d89b4a;
  --amber-soft:#fff4e3;
  --radius:16px;
  --shadow:0 16px 42px rgba(20,28,38,.08);
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--text);background:var(--paper);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{height:76px;background:rgba(17,19,27,.96);color:#eef5f4;display:flex;align-items:center;position:relative;z-index:10;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{width:min(1180px,calc(100% - 48px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-mark{width:38px;height:32px;display:grid;place-items:center;color:var(--ink);background:var(--cyan);border-radius:9px;font-size:13px;font-weight:900}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{position:relative;padding:9px 15px;color:#b9c2c8;font-size:14px;border-radius:9px}
.nav-links a:hover,.nav-links a:focus{color:#fff;background:rgba(53,216,193,.09)}
.nav-links a.active{color:var(--cyan)}
.nav-links a.active:after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--cyan);border-radius:2px}
.header-cta{border:1px solid rgba(53,216,193,.55);color:var(--cyan);padding:9px 16px;border-radius:9px;font-size:14px}
.header-cta:hover{background:var(--cyan);color:var(--ink)}
.menu-toggle{display:none;background:none;border:1px solid #48505c;color:#fff;border-radius:8px;padding:5px 9px}
.banner{position:relative;min-height:350px;background:linear-gradient(90deg,rgba(15,18,27,.96),rgba(15,18,27,.78)),url("/assets/images/backpic/back-2.webp") center/cover;color:#fff;display:flex;align-items:center;overflow:hidden}
.banner:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(53,216,193,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(53,216,193,.06) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent)}
.banner-content{position:relative;z-index:1;padding:66px 0 58px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;letter-spacing:.08em;margin-bottom:18px}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--cyan)}
.banner h1{font-size:clamp(32px,4vw,48px);line-height:1.24;max-width:720px;letter-spacing:-.03em;margin-bottom:18px}
.banner p{max-width:760px;color:#c8d0d4;font-size:17px;line-height:1.9}
.topic-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.topic-tabs a{padding:7px 14px;border:1px solid rgba(255,255,255,.2);border-radius:30px;color:#d4dddd;font-size:13px}
.topic-tabs a:hover,.topic-tabs a.active{border-color:var(--cyan);color:var(--cyan);background:rgba(53,216,193,.08)}
.section{padding:78px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:30px}
.section-head h2{font-size:30px;line-height:1.35;color:var(--ink)}
.section-head p{max-width:560px;color:var(--muted);font-size:15px}
.section-kicker{font-size:12px;color:var(--cyan-dark);letter-spacing:.13em;margin-bottom:8px;font-weight:700}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:36px;align-items:start}
.article-stream{display:grid;gap:18px}
.article-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--ease);display:grid;grid-template-columns:210px 1fr}
.article-card:first-child{display:block}
.article-card:first-child .article-image{height:245px}
.article-card:hover{transform:translateY(-3px);border-color:rgba(19,169,148,.55);box-shadow:var(--shadow)}
.article-image{height:150px;overflow:hidden;background:#dce5e5}
.article-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.article-card:hover .article-image img{transform:scale(1.035)}
.article-body{padding:21px 23px}
.article-card:first-child .article-body{padding:25px 27px}
.tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:#e7f8f5;color:#087f72;font-size:12px;font-weight:700;margin-bottom:11px}
.article-body h3{font-size:20px;line-height:1.45;color:var(--ink);margin-bottom:9px}
.article-card:not(:first-child) h3{font-size:17px}
.article-body p{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.article-meta{display:flex;gap:15px;color:#8a9299;font-size:12px;margin-top:14px;flex-wrap:wrap}
.read-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--cyan-dark);font-weight:700;font-size:14px}
.read-link:after{content:"›";font-size:18px;line-height:1}
.side-stack{display:grid;gap:18px;position:sticky;top:22px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 10px 26px rgba(20,28,38,.05)}
.side-card.dark{background:var(--ink-2);color:#eef5f4;border-color:rgba(255,255,255,.08)}
.side-card.alert{background:var(--amber-soft);border-color:#f1d19c}
.side-card h3{font-size:18px;line-height:1.4;margin-bottom:14px;color:inherit}
.topic-list{display:grid;gap:10px}
.topic-list a{display:flex;justify-content:space-between;align-items:center;padding:11px 12px;border-radius:10px;background:#f3f6f7;color:#303846;font-size:14px}
.topic-list a:hover{background:#e5fbf8;color:#087f72;transform:translateX(2px)}
.check-list{display:grid;gap:10px;list-style:none}
.check-list li{position:relative;padding-left:24px;color:#4d5662;font-size:14px;line-height:1.65}
.check-list li:before{content:"";position:absolute;left:0;top:.55em;width:13px;height:13px;border-radius:50%;background:rgba(53,216,193,.17);border:1px solid var(--cyan-dark)}
.dark .check-list li{color:#cbd4d8}
.alert p{color:#7a5420;font-size:14px;line-height:1.75}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{padding:6px 10px;border:1px solid #dde5e7;border-radius:30px;background:#fafafa;color:#5a646d;font-size:12px}
.pagination{display:flex;gap:8px;align-items:center;margin-top:28px;flex-wrap:wrap}
.pagination a,.pagination span{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--white);color:#52606c;font-weight:700;font-size:14px}
.pagination .current,.pagination a:hover{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.guide-panel{background:var(--ink);color:#fff;border-radius:24px;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;box-shadow:var(--shadow)}
.guide-copy{padding:36px}
.guide-copy h2{font-size:28px;line-height:1.35;margin-bottom:14px}
.guide-copy p{color:#c9d1d6}
.guide-points{display:grid;gap:13px;margin-top:24px}
.guide-point{padding:14px 15px;border:1px solid rgba(255,255,255,.11);border-radius:12px;background:rgba(255,255,255,.04)}
.guide-point strong{display:block;color:var(--cyan);margin-bottom:3px}
.guide-media{position:relative;min-height:330px}
.guide-media img{width:100%;height:100%;object-fit:cover}
.guide-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(17,19,27,.45),transparent)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.process-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:var(--ease)}
.process-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(53,216,193,.45)}
.step-num{width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--cyan);display:grid;place-items:center;font-weight:900;margin-bottom:16px}
.process-card h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.process-card p{font-size:14px;color:var(--muted);line-height:1.75}
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:var(--ease)}
.faq-item:hover{border-color:rgba(53,216,193,.5);box-shadow:0 12px 30px rgba(20,28,38,.06)}
.faq-item h3{font-size:17px;line-height:1.55;color:var(--ink);margin-bottom:9px}
.faq-item p{color:var(--muted);font-size:14px;line-height:1.8}
.cta-band{padding:58px 0;background:linear-gradient(135deg,var(--ink),#252b36);color:#fff}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-box h2{font-size:28px;line-height:1.35;margin-bottom:10px}
.cta-box p{color:#c7d1d5;max-width:720px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:11px;border:1px solid transparent;font-weight:700;cursor:pointer;transition:var(--ease)}
.btn-primary{background:var(--cyan);color:var(--ink)}
.btn-primary:hover{background:#58ead7;transform:translateY(-2px)}
.btn-secondary{border-color:rgba(255,255,255,.25);color:#fff;background:transparent}
.btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.site-footer{background:#10131a;color:#d8e0e3;padding:50px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:11px;font-weight:800;margin-bottom:13px}
.footer-text{color:#aeb8bd;font-size:14px;line-height:1.8;max-width:640px}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;align-content:start}
.footer-links a{color:#aeb8bd;font-size:14px}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#889197;font-size:12px;padding-top:20px}
@media (max-width:1024px){
  .content-layout{grid-template-columns:1fr}
  .side-stack{position:static;grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .guide-panel{grid-template-columns:1fr}
  .guide-media{min-height:260px;order:-1}
}
@media (max-width:768px){
  .container,.header-inner{width:min(100% - 32px,1180px)}
  .site-header{height:auto;min-height:68px;padding:14px 0}
  .header-inner{flex-wrap:wrap}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .nav-links{display:none;width:100%;flex-direction:column;align-items:stretch;padding-top:12px}
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 13px}
  .header-cta{display:none}
  .banner{min-height:auto}
  .banner-content{padding:48px 0}
  .topic-tabs{gap:8px}
  .section{padding:56px 0}
  .section-head{display:block}
  .section-head h2{font-size:25px;margin-bottom:10px}
  .article-card,.article-card:first-child{display:block}
  .article-image,.article-card:first-child .article-image{height:210px}
  .side-stack{grid-template-columns:1fr}
  .guide-copy{padding:26px}
  .process-grid,.faq-wrap{grid-template-columns:1fr}
  .cta-box{display:block}
  .btn-row{margin-top:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr}
}
@media (max-width:520px){
  body{font-size:15px}
  .brand span:last-child{max-width:210px;overflow:hidden;text-overflow:ellipsis}
  .banner h1{font-size:29px}
  .banner p{font-size:15px}
  .article-body,.article-card:first-child .article-body{padding:19px}
  .side-card{padding:19px}
  .cta-box h2,.guide-copy h2{font-size:23px}
}