/* roulang page: index */
:root{
      --bg:#07111F;
      --bg-2:#081425;
      --bg-3:#0D1B2E;
      --panel:#10233A;
      --glass:rgba(255,255,255,.07);
      --glass-strong:rgba(14,32,54,.78);
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(79,140,255,.42);
      --text:#F5F8FF;
      --muted:#A7B4C8;
      --weak:#748197;
      --primary:#4F8CFF;
      --primary-2:#7C5CFF;
      --cyan:#27D6D1;
      --success:#27D6A1;
      --hot:#FFB45C;
      --hot-2:#FF7A59;
      --shadow:0 22px 70px rgba(0,0,0,.34);
      --glow:0 0 36px rgba(79,140,255,.35);
      --glow-purple:0 0 42px rgba(124,92,255,.28);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 6%, rgba(79,140,255,.22), transparent 34%),
        radial-gradient(circle at 80% 10%, rgba(124,92,255,.20), transparent 32%),
        radial-gradient(circle at 74% 50%, rgba(255,180,92,.08), transparent 28%),
        linear-gradient(180deg, var(--bg), #06101D 46%, #091522 100%);
      line-height:1.8;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.34;
      background-image:
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
      background-size:56px 56px;
      mask-image:linear-gradient(to bottom, #000 0%, transparent 78%);
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:auto -120px 8% auto;
      width:380px;
      height:380px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(39,214,209,.13), transparent 68%);
      filter:blur(4px);
      pointer-events:none;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(79,140,255,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(79,140,255,.45);outline-offset:3px;border-radius:12px}

    .container{width:min(calc(100% - 40px), var(--container));margin-inline:auto}
    .section{padding:96px 0;position:relative}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#DCE7FF;
      font-size:13px;
      font-weight:650;
      padding:8px 13px;
      border:1px solid rgba(79,140,255,.28);
      border-radius:999px;
      background:linear-gradient(135deg, rgba(79,140,255,.16), rgba(124,92,255,.12));
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--hot);
      box-shadow:0 0 16px rgba(255,180,92,.9);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{color:var(--primary);font-size:14px;font-weight:700;margin:0 0 8px}
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px, 5vw, 56px);
      line-height:1.13;
      letter-spacing:-.04em;
      margin:18px 0 20px;
      font-weight:850;
    }
    h2{
      font-size:clamp(28px, 3.2vw, 38px);
      line-height:1.25;
      letter-spacing:-.03em;
      margin:0 0 14px;
      font-weight:800;
    }
    h3{font-size:21px;line-height:1.35;margin:0 0 10px;font-weight:760}
    p{color:var(--muted);font-size:16px}
    .lead{font-size:18px;color:#C6D2E6;max-width:720px}
    .text-gradient{
      background:linear-gradient(135deg, #FFFFFF 0%, #BFD5FF 42%, #D9D2FF 72%, #FFE0B8 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:16px 0;
      transition:.25s ease;
    }
    .site-header.is-scrolled{padding:10px 0}
    .nav-shell{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:12px 14px;
      border:1px solid rgba(255,255,255,.10);
      border-radius:999px;
      background:rgba(7,17,31,.72);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 54px rgba(0,0,0,.28);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:246px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 72% 24%, rgba(255,180,92,.95) 0 4px, transparent 5px),
        linear-gradient(135deg, rgba(79,140,255,.95), rgba(124,92,255,.92));
      box-shadow:0 0 26px rgba(79,140,255,.32);
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      inset:9px;
      background:
        linear-gradient(90deg, rgba(255,255,255,.72) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.72) 1px, transparent 1px);
      background-size:10px 10px;
      opacity:.6;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-title{font-size:15px;font-weight:850;color:#fff;white-space:nowrap}
    .brand-sub{font-size:12px;color:var(--weak);margin-top:3px}
    .nav-tabs{
      display:flex;
      align-items:center;
      gap:6px;
      padding:5px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:999px;
      background:rgba(255,255,255,.045);
    }
    .nav-tabs a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:9px 13px;
      color:var(--muted);
      font-size:14px;
      border-radius:999px;
      border:1px solid transparent;
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-tabs a:hover,.nav-tabs a.active{
      color:#fff;
      background:rgba(79,140,255,.16);
      border-color:rgba(79,140,255,.36);
      transform:translateY(-1px);
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:750;
      font-size:15px;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 12px 32px rgba(79,140,255,.32), inset 0 1px 0 rgba(255,255,255,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(79,140,255,.45), 0 0 34px rgba(124,92,255,.25)}
    .btn-primary:active{transform:translateY(0);box-shadow:0 8px 24px rgba(79,140,255,.28)}
    .btn-secondary{
      color:#E8F0FF;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.13);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(79,140,255,.45);background:rgba(79,140,255,.12)}
    .text-btn{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#BBD0FF;
      font-weight:750;
      transition:.22s ease;
    }
    .text-btn:hover{color:#fff;gap:12px;text-shadow:0 0 20px rgba(79,140,255,.4)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:50%;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:#fff;
      margin:4px auto;
      border-radius:2px;
    }

    .hero{
      padding:72px 0 44px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"分区 · 热度 · 精品";
      position:absolute;
      right:6%;
      top:84px;
      color:rgba(255,255,255,.035);
      font-size:70px;
      font-weight:900;
      letter-spacing:.08em;
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);
      gap:48px;
      align-items:center;
    }
    .hero-copy{position:relative;z-index:2}
    .hero-copy .lead{margin-bottom:28px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 28px}
    .hero-notes{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:13px;
    }
    .mini-chip,.badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.055);
      color:#DDE7FA;
      font-size:13px;
      font-weight:650;
    }
    .badge-hot{background:rgba(255,180,92,.13);border-color:rgba(255,180,92,.28);color:#FFE0B8}
    .badge-ok{background:rgba(39,214,161,.12);border-color:rgba(39,214,161,.25);color:#C7FFED}
    .badge-blue{background:rgba(79,140,255,.13);border-color:rgba(79,140,255,.28);color:#D8E5FF}

    .console{
      position:relative;
      padding:18px;
      border-radius:32px;
      border:1px solid rgba(255,255,255,.13);
      background:linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
      box-shadow:var(--shadow), var(--glow);
      backdrop-filter:blur(18px);
    }
    .console::before{
      content:"";
      position:absolute;
      inset:-1px;
      border-radius:32px;
      padding:1px;
      background:linear-gradient(135deg, rgba(79,140,255,.62), transparent 32%, rgba(255,180,92,.38), transparent 70%, rgba(124,92,255,.6));
      -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
      -webkit-mask-composite:xor;
      mask-composite:exclude;
      pointer-events:none;
    }
    .console-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .window-dots{display:flex;gap:7px}
    .window-dots i{width:10px;height:10px;border-radius:50%;display:block;background:rgba(255,255,255,.22)}
    .window-dots i:nth-child(1){background:#FF7A59}.window-dots i:nth-child(2){background:#FFB45C}.window-dots i:nth-child(3){background:#27D6A1}
    .console-title{font-size:13px;color:var(--muted)}
    .console-body{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .panel-card{
      border-radius:22px;
      border:1px solid rgba(255,255,255,.11);
      background:rgba(8,20,37,.72);
      padding:18px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
    }
    .panel-card.wide{grid-column:span 2}
    .heat-line{
      height:118px;
      border-radius:18px;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(79,140,255,.13), rgba(124,92,255,.05)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.06) 0 1px, transparent 1px 36px);
    }
    .heat-line svg{position:absolute;inset:0;width:100%;height:100%}
    .content-queue{display:grid;gap:10px}
    .queue-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:10px;
      border-radius:14px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
    }
    .queue-title{display:flex;flex-direction:column;gap:3px}
    .queue-title b{font-size:13px;color:#fff}.queue-title span{font-size:12px;color:var(--weak)}
    .score{font-size:13px;font-weight:800;color:var(--hot)}
    .zone-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .zone-tag{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(79,140,255,.12);
      color:#DCE8FF;
      border:1px solid rgba(79,140,255,.22);
      font-size:12px;
    }
    .pulse{
      width:10px;height:10px;border-radius:50%;background:var(--success);
      box-shadow:0 0 0 0 rgba(39,214,161,.6);
      animation:pulse 1.8s infinite;
    }
    @keyframes pulse{
      0%{box-shadow:0 0 0 0 rgba(39,214,161,.55)}
      70%{box-shadow:0 0 0 12px rgba(39,214,161,0)}
      100%{box-shadow:0 0 0 0 rgba(39,214,161,0)}
    }

    .trust-strip{
      margin-top:44px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      border:1px solid rgba(255,255,255,.11);
      border-radius:26px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(16px);
      overflow:hidden;
      box-shadow:0 18px 54px rgba(0,0,0,.22);
    }
    .trust-item{padding:22px 24px;border-right:1px solid rgba(255,255,255,.09)}
    .trust-item:last-child{border-right:0}
    .trust-item strong{display:block;color:#fff;font-size:24px;line-height:1.2;margin-bottom:6px}
    .trust-item span{color:var(--muted);font-size:14px}

    .glass-card{
      position:relative;
      border:1px solid rgba(255,255,255,.11);
      background:var(--glass);
      border-radius:var(--radius-lg);
      padding:26px;
      backdrop-filter:blur(16px);
      box-shadow:0 18px 58px rgba(0,0,0,.25);
      transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
      overflow:hidden;
    }
    .glass-card::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg, transparent, rgba(79,140,255,.75), rgba(255,180,92,.42), transparent);
      opacity:.75;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(79,140,255,.42);
      box-shadow:0 24px 72px rgba(0,0,0,.3), 0 0 34px rgba(79,140,255,.16);
    }
    .value-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:20px;
    }
    .value-stack{display:grid;gap:20px}
    .big-value{min-height:340px;display:flex;flex-direction:column;justify-content:space-between}
    .icon-orb{
      width:50px;height:50px;border-radius:18px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg, rgba(79,140,255,.95), rgba(124,92,255,.9));
      box-shadow:0 0 28px rgba(79,140,255,.25);
      font-weight:900;
    }
    .flow-card{
      grid-column:span 2;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:22px;
      align-items:center;
    }
    .flow-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .flow-step{
      padding:13px 10px;
      text-align:center;
      border-radius:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.09);
      color:#DCE6F9;
      font-size:14px;
      font-weight:700;
    }

    .feature-tabs{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:20px;
    }
    .feature-tab{
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.055);
      color:var(--muted);
      transition:.22s ease;
    }
    .feature-tab:hover,.feature-tab.active{
      color:#fff;
      border-color:rgba(79,140,255,.42);
      background:rgba(79,140,255,.16);
      transform:translateY(-1px);
    }
    .feature-panel{
      display:grid;
      grid-template-columns:1fr .78fr;
      gap:20px;
      align-items:stretch;
    }
    .feature-main{padding:32px;min-height:320px}
    .feature-list{display:grid;gap:14px}
    .feature-row{
      display:grid;
      grid-template-columns:42px 1fr auto;
      align-items:center;
      gap:14px;
      padding:16px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.05);
      border-radius:18px;
    }
    .feature-row .num{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      color:#fff;
      background:rgba(79,140,255,.16);
      border:1px solid rgba(79,140,255,.25);
      font-weight:850;
    }

    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      counter-reset:scenario;
    }
    .scenario-card{min-height:280px}
    .scenario-card::after{
      counter-increment:scenario;
      content:"0" counter(scenario);
      position:absolute;
      right:22px;
      top:18px;
      color:rgba(255,255,255,.08);
      font-size:42px;
      font-weight:900;
      line-height:1;
    }
    .scenario-meta{color:var(--weak);font-size:14px;margin-bottom:14px}
    .scenario-result{
      margin:16px 0 18px;
      padding:14px;
      border-radius:16px;
      background:rgba(79,140,255,.09);
      border:1px solid rgba(79,140,255,.15);
      color:#C9D8F2;
      font-size:14px;
    }

    .case-layout{
      display:grid;
      grid-template-columns:1fr .72fr;
      gap:22px;
      align-items:stretch;
    }
    .case-card{
      min-height:420px;
      background:
        radial-gradient(circle at 84% 18%, rgba(255,180,92,.14), transparent 28%),
        radial-gradient(circle at 14% 84%, rgba(79,140,255,.18), transparent 30%),
        rgba(255,255,255,.06);
    }
    .case-tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
    .metric-list{display:grid;gap:14px}
    .metric{
      padding:18px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.045);
    }
    .metric-top{display:flex;justify-content:space-between;gap:12px;color:#fff;font-weight:760;margin-bottom:10px}
    .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
    .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg, var(--primary), var(--primary-2), var(--hot))}

    .news-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .news-intro{
      position:sticky;
      top:110px;
    }
    .news-list{display:grid;gap:14px}
    .news-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:18px;
      padding:20px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.055);
      transition:.22s ease;
    }
    .news-card:hover{
      transform:translateX(4px) translateY(-2px);
      border-color:rgba(79,140,255,.42);
      background:rgba(79,140,255,.09);
      box-shadow:0 18px 48px rgba(0,0,0,.22);
    }
    .news-card:hover h3{color:#BFD5FF}
    .news-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
    .news-card h3{font-size:19px;margin-bottom:8px;transition:.22s ease}
    .news-card p{font-size:14px;margin:0;color:var(--muted)}
    .news-date{
      color:var(--weak);
      font-size:13px;
      white-space:nowrap;
      padding-top:4px;
    }
    .empty-state{
      min-height:190px;
      display:grid;
      place-items:center;
      text-align:center;
      border:1px dashed rgba(79,140,255,.38);
      border-radius:24px;
      background:rgba(79,140,255,.055);
      color:var(--muted);
      padding:28px;
    }
    .empty-state .empty-icon{
      width:54px;height:54px;border-radius:20px;
      display:grid;place-items:center;
      margin:0 auto 12px;
      background:rgba(79,140,255,.15);
      color:#fff;
      box-shadow:0 0 30px rgba(79,140,255,.22);
      font-size:22px;
    }

    .plan-wrap{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      align-items:stretch;
    }
    .plan-card{display:flex;flex-direction:column}
    .plan-card.recommend{
      border-color:rgba(79,140,255,.5);
      box-shadow:0 24px 72px rgba(0,0,0,.3), 0 0 42px rgba(79,140,255,.22);
      transform:translateY(-8px);
    }
    .plan-price{
      margin:16px 0 18px;
      padding-bottom:18px;
      border-bottom:1px solid rgba(255,255,255,.1);
      color:#fff;
      font-size:26px;
      font-weight:850;
    }
    .plan-price span{font-size:14px;color:var(--weak);font-weight:500}
    .check-list{padding:0;margin:0 0 22px;list-style:none;display:grid;gap:11px}
    .check-list li{display:flex;gap:10px;color:#C6D2E6;font-size:14px}
    .check-list li::before{content:"✓";color:var(--success);font-weight:900}
    .plan-card .btn{margin-top:auto}

    .faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto}
    .faq-item{
      border:1px solid rgba(255,255,255,.11);
      border-radius:22px;
      background:rgba(255,255,255,.055);
      overflow:hidden;
      transition:.22s ease;
    }
    .faq-item.active{
      border-color:rgba(79,140,255,.42);
      background:rgba(79,140,255,.08);
    }
    .faq-q{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      text-align:left;
      padding:20px 22px;
      background:transparent;
      color:#fff;
      font-weight:780;
      font-size:16px;
    }
    .faq-q i{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(255,255,255,.08);
      font-style:normal;
      transition:.22s ease;
    }
    .faq-item.active .faq-q i{transform:rotate(45deg);background:rgba(79,140,255,.22)}
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-a p{padding:0 22px 22px;margin:0;color:#B8C7DE}

    .final-cta{
      border:1px solid rgba(255,255,255,.12);
      border-radius:34px;
      padding:42px;
      overflow:hidden;
      position:relative;
      background:
        radial-gradient(circle at 18% 18%, rgba(79,140,255,.28), transparent 30%),
        radial-gradient(circle at 82% 24%, rgba(255,180,92,.14), transparent 28%),
        linear-gradient(135deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
      box-shadow:0 26px 82px rgba(0,0,0,.32);
      backdrop-filter:blur(16px);
    }
    .final-cta::after{
      content:"";
      position:absolute;
      right:34px;
      bottom:28px;
      width:220px;height:130px;
      opacity:.3;
      background:
        linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px);
      background-size:22px 22px;
      transform:rotate(-8deg);
      border-radius:26px;
    }
    .final-cta-inner{
      position:relative;
      z-index:2;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px;
    }
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

    .site-footer{
      padding:62px 0 28px;
      background:linear-gradient(180deg, rgba(8,20,37,.35), rgba(4,10,18,.9));
      border-top:1px solid rgba(255,255,255,.09);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:32px;
      padding-bottom:34px;
    }
    .footer-title{font-weight:850;color:#fff;margin-bottom:10px}
    .footer-desc{color:var(--muted);font-size:14px;max-width:420px}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-small{color:var(--weak);font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:var(--primary)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1080px){
      .nav-tabs{display:none}
      .menu-toggle{display:block}
      .nav-shell{border-radius:26px;align-items:flex-start;flex-wrap:wrap}
      .brand{min-width:auto}
      .header-actions .btn{display:none}
      .site-header.nav-open .nav-tabs{
        display:flex;
        order:3;
        width:100%;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        margin-top:10px;
      }
      .site-header.nav-open .nav-tabs a{justify-content:flex-start}
      .hero-grid,.value-layout,.feature-panel,.case-layout,.news-layout{grid-template-columns:1fr}
      .news-intro{position:relative;top:auto}
      .scenario-grid,.plan-wrap{grid-template-columns:repeat(2,1fr)}
      .trust-strip{grid-template-columns:repeat(2,1fr)}
      .trust-item:nth-child(2){border-right:0}
      .trust-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.09)}
      .flow-card{grid-column:auto;grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px), var(--container))}
      .section{padding:68px 0}
      .hero{padding:42px 0 34px}
      .hero-grid{gap:28px}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .console{padding:12px;border-radius:24px}
      .console-body{grid-template-columns:1fr}
      .panel-card.wide{grid-column:auto}
      .scenario-grid,.plan-wrap,.trust-strip{grid-template-columns:1fr}
      .trust-item{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.09)}
      .trust-item:last-child{border-bottom:0}
      .flow-steps{grid-template-columns:1fr 1fr}
      .feature-row{grid-template-columns:42px 1fr}
      .feature-row .badge{grid-column:2}
      .news-card{grid-template-columns:1fr}
      .plan-card.recommend{transform:none}
      .final-cta{padding:28px;border-radius:26px}
      .final-cta-inner{flex-direction:column;align-items:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .brand-title{font-size:14px}
      .brand-sub{display:none}
    }
    @media (max-width:520px){
      h1{font-size:32px}
      h2{font-size:26px}
      .nav-shell{padding:10px;border-radius:22px}
      .brand-mark{width:38px;height:38px}
      .glass-card{padding:20px;border-radius:20px}
      .flow-steps{grid-template-columns:1fr}
      .section-head{display:block}
      .hero::before{display:none}
    }

/* roulang page: article */
:root{
      --bg:#07111F;
      --bg-2:#081425;
      --panel:#0D1B2E;
      --panel-2:#10233A;
      --glass:rgba(255,255,255,.07);
      --glass-strong:rgba(14,32,54,.78);
      --text:#F5F8FF;
      --muted:#A7B4C8;
      --weak:#748197;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(79,140,255,.42);
      --primary:#4F8CFF;
      --primary-2:#7C5CFF;
      --cyan:#27D6A1;
      --hot:#FFB45C;
      --hot-2:#FF7A59;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow:0 22px 70px rgba(0,0,0,.32);
      --glow:0 0 40px rgba(79,140,255,.28),0 0 76px rgba(124,92,255,.18);
      --container:1180px;
      --header-h:82px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      line-height:1.8;
      background:
        radial-gradient(circle at 15% 4%,rgba(79,140,255,.26),transparent 30%),
        radial-gradient(circle at 86% 10%,rgba(124,92,255,.20),transparent 32%),
        radial-gradient(circle at 70% 76%,rgba(255,180,92,.10),transparent 34%),
        linear-gradient(180deg,var(--bg),#081323 45%,#050B15 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:54px 54px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.95),rgba(0,0,0,.42),transparent 92%);
    }
    body::after{
      content:"";
      position:fixed;
      width:480px;
      height:480px;
      right:-240px;
      top:240px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(39,214,161,.12),transparent 68%);
      pointer-events:none;
      z-index:-1;
      filter:blur(4px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(79,140,255,.45);outline-offset:3px}
    .container{
      width:min(var(--container),calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:14px 0;
      background:linear-gradient(180deg,rgba(7,17,31,.88),rgba(7,17,31,.62));
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-shell{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:10px 12px 10px 16px;
      border:1px solid rgba(255,255,255,.10);
      border-radius:999px;
      background:rgba(7,17,31,.72);
      box-shadow:0 18px 54px rgba(0,0,0,.22);
      backdrop-filter:blur(18px);
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 72% 28%,var(--hot) 0 7%,transparent 8%),
        linear-gradient(135deg,rgba(79,140,255,.98),rgba(124,92,255,.92));
      box-shadow:0 0 28px rgba(79,140,255,.34);
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      inset:8px;
      border-radius:8px;
      background:
        linear-gradient(90deg,rgba(255,255,255,.26) 1px,transparent 1px),
        linear-gradient(rgba(255,255,255,.26) 1px,transparent 1px);
      background-size:10px 10px;
      opacity:.82;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:8px;
      height:8px;
      right:8px;
      top:8px;
      border-radius:50%;
      background:var(--hot);
      box-shadow:0 0 18px rgba(255,180,92,.9);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.12;
    }
    .brand-title{
      font-size:15px;
      font-weight:800;
      letter-spacing:.01em;
      color:#fff;
      white-space:nowrap;
    }
    .brand-sub{
      margin-top:4px;
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }
    .nav-tabs{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:5px;
      border-radius:999px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
    }
    .nav-tabs a{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      color:var(--muted);
      transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .nav-tabs a:hover{
      color:var(--text);
      background:rgba(79,140,255,.12);
      transform:translateY(-1px);
    }
    .nav-tabs a.active{
      color:#fff;
      border-color:rgba(79,140,255,.55);
      background:rgba(79,140,255,.18);
      box-shadow:inset 0 0 18px rgba(79,140,255,.10);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:12px 18px;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      border:1px solid transparent;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 34px rgba(79,140,255,.32),inset 0 1px 0 rgba(255,255,255,.28);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 46px rgba(79,140,255,.42),0 0 34px rgba(124,92,255,.24);
    }
    .btn-primary:active{transform:translateY(0);box-shadow:0 8px 20px rgba(79,140,255,.26)}
    .btn-secondary{
      color:var(--text);
      border-color:rgba(255,255,255,.14);
      background:rgba(255,255,255,.06);
      backdrop-filter:blur(14px);
    }
    .btn-secondary:hover{
      border-color:rgba(79,140,255,.5);
      background:rgba(79,140,255,.13);
      transform:translateY(-2px);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:50%;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      position:relative;
    }
    .menu-toggle span{
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      border-radius:999px;
      background:#fff;
      transition:transform .22s ease,top .22s ease;
    }
    .menu-toggle span:first-child{top:15px}
    .menu-toggle span:last-child{top:24px}
    .site-header.nav-open .menu-toggle span:first-child{top:20px;transform:rotate(45deg)}
    .site-header.nav-open .menu-toggle span:last-child{top:20px;transform:rotate(-45deg)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
      color:#DCE8FF;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
    }
    .badge::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(39,214,161,.75);
    }
    .badge.hot{
      color:#FFE4C5;
      background:rgba(255,180,92,.10);
      border-color:rgba(255,180,92,.26);
    }
    .badge.hot::before{background:var(--hot);box-shadow:0 0 14px rgba(255,180,92,.8)}
    .article-hero{
      position:relative;
      padding:70px 0 46px;
      overflow:hidden;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-1;
      background:
        radial-gradient(circle at 24% 18%,rgba(79,140,255,.24),transparent 34%),
        radial-gradient(circle at 78% 16%,rgba(124,92,255,.19),transparent 34%),
        linear-gradient(180deg,rgba(13,27,46,.28),transparent);
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      align-items:center;
      color:var(--muted);
      font-size:14px;
      margin-bottom:24px;
    }
    .crumbs a{color:#CFE0FF;transition:color .2s ease}
    .crumbs a:hover{color:#fff}
    .crumbs .sep{color:var(--weak)}
    .article-title-wrap{
      max-width:900px;
    }
    .article-kicker{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
    }
    .article-title{
      margin:0;
      font-size:clamp(32px,5vw,54px);
      line-height:1.16;
      letter-spacing:-.03em;
      font-weight:850;
      color:#fff;
      text-wrap:balance;
    }
    .article-summary{
      margin:18px 0 0;
      max-width:780px;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .meta-row{
      margin-top:24px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#DDE8FA;
      font-size:13px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.11);
    }
    .meta-pill svg{width:15px;height:15px;color:var(--primary)}
    .page-main{
      padding:34px 0 96px;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(280px,1fr);
      gap:34px;
      align-items:start;
    }
    .reading-card{
      position:relative;
      border:1px solid rgba(255,255,255,.12);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.045));
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      overflow:hidden;
    }
    .reading-card::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:2px;
      background:linear-gradient(90deg,transparent,var(--primary),var(--primary-2),var(--hot),transparent);
      opacity:.82;
    }
    .article-content{
      padding:38px;
      color:#EAF0FA;
      font-size:16.5px;
      line-height:1.9;
    }
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:#fff;
      line-height:1.32;
      letter-spacing:-.015em;
    }
    .article-content h2{
      margin:2em 0 .75em;
      font-size:30px;
      padding-top:.15em;
    }
    .article-content h3{
      margin:1.7em 0 .65em;
      font-size:23px;
    }
    .article-content h4{
      margin:1.4em 0 .5em;
      font-size:19px;
    }
    .article-content p{
      margin:0 0 1.25em;
    }
    .article-content a{
      color:#9FC2FF;
      border-bottom:1px solid rgba(79,140,255,.34);
      transition:color .2s ease,border-color .2s ease;
    }
    .article-content a:hover{
      color:#fff;
      border-color:rgba(255,255,255,.72);
    }
    .article-content ul,
    .article-content ol{
      margin:1.1em 0 1.35em;
      padding-left:1.45em;
    }
    .article-content li{margin:.45em 0}
    .article-content blockquote{
      margin:1.7em 0;
      padding:20px 22px;
      border-left:4px solid var(--primary);
      border-radius:18px;
      color:#DCE8F8;
      background:rgba(79,140,255,.10);
      box-shadow:inset 0 0 0 1px rgba(79,140,255,.13);
    }
    .article-content img{
      max-width:100%;
      height:auto;
      margin:1.6em auto;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 18px 54px rgba(0,0,0,.25);
    }
    .article-content table{
      width:100%;
      border-collapse:collapse;
      margin:1.6em 0;
      overflow:hidden;
      border-radius:16px;
      background:rgba(10,24,42,.72);
      border:1px solid rgba(255,255,255,.12);
      display:block;
      overflow-x:auto;
    }
    .article-content th,
    .article-content td{
      padding:13px 15px;
      border-bottom:1px solid rgba(255,255,255,.10);
      min-width:150px;
    }
    .article-content th{
      color:#fff;
      background:rgba(79,140,255,.14);
      text-align:left;
    }
    .article-content code{
      padding:.18em .42em;
      border-radius:8px;
      color:#CFE0FF;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:.92em;
    }
    .article-content pre{
      margin:1.6em 0;
      padding:18px;
      overflow:auto;
      border-radius:18px;
      background:#07101E;
      border:1px solid rgba(255,255,255,.11);
    }
    .article-content pre code{
      padding:0;
      border:0;
      background:transparent;
    }
    .not-found{
      padding:42px 34px;
      text-align:center;
    }
    .not-found h2{
      margin:0 0 12px;
      font-size:30px;
      color:#fff;
    }
    .not-found p{
      margin:0 auto 22px;
      max-width:520px;
      color:var(--muted);
    }
    .side-stack{
      position:sticky;
      top:112px;
      display:grid;
      gap:18px;
    }
    .side-card,
    .related-card,
    .cta-strip{
      border:1px solid rgba(255,255,255,.11);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.06);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 58px rgba(0,0,0,.24);
    }
    .side-card{
      padding:22px;
      overflow:hidden;
      position:relative;
    }
    .side-card::before{
      content:"";
      position:absolute;
      inset:0 0 auto;
      height:2px;
      background:linear-gradient(90deg,var(--primary),var(--primary-2),transparent);
      opacity:.7;
    }
    .side-title{
      margin:0 0 14px;
      font-size:17px;
      color:#fff;
      font-weight:800;
    }
    .info-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .info-list li{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-bottom:12px;
      border-bottom:1px solid rgba(255,255,255,.09);
      color:var(--muted);
      font-size:14px;
    }
    .info-list li:last-child{border-bottom:0;padding-bottom:0}
    .info-list strong{
      color:#fff;
      font-weight:700;
      text-align:right;
    }
    .topic-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .topic-tags span{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      color:#CFE0FF;
      background:rgba(79,140,255,.10);
      border:1px solid rgba(79,140,255,.22);
    }
    .side-note{
      color:var(--muted);
      font-size:14px;
      margin:0;
    }
    .progress-box{
      display:grid;
      gap:11px;
    }
    .progress-line{
      height:8px;
      border-radius:999px;
      overflow:hidden;
      background:rgba(255,255,255,.08);
    }
    .progress-line span{
      display:block;
      width:72%;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--primary),var(--primary-2),var(--hot));
      box-shadow:0 0 20px rgba(79,140,255,.32);
    }
    .related-section{
      margin-top:34px;
      display:grid;
      gap:18px;
    }
    .section-heading{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-top:4px;
    }
    .section-heading h2{
      margin:0;
      font-size:28px;
      line-height:1.25;
      color:#fff;
    }
    .section-heading p{
      margin:8px 0 0;
      color:var(--muted);
      max-width:620px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .related-card{
      padding:22px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .related-card:hover{
      transform:translateY(-4px);
      border-color:rgba(79,140,255,.42);
      box-shadow:0 22px 64px rgba(79,140,255,.14),0 18px 58px rgba(0,0,0,.26);
      background:rgba(79,140,255,.08);
    }
    .related-card h3{
      margin:13px 0 8px;
      font-size:20px;
      line-height:1.35;
      color:#fff;
      transition:color .2s ease;
    }
    .related-card:hover h3{color:#BFD5FF}
    .related-card p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:14px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#9FC2FF;
      font-weight:750;
      font-size:14px;
      transition:gap .2s ease,color .2s ease;
    }
    .text-link:hover{gap:10px;color:#fff}
    .cta-strip{
      margin-top:34px;
      padding:28px;
      position:relative;
      overflow:hidden;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-strip::before{
      content:"";
      position:absolute;
      width:300px;
      height:300px;
      right:-120px;
      top:-140px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(79,140,255,.26),transparent 68%);
      pointer-events:none;
    }
    .cta-strip h2{
      position:relative;
      margin:0 0 8px;
      color:#fff;
      font-size:25px;
      line-height:1.25;
    }
    .cta-strip p{
      position:relative;
      margin:0;
      color:var(--muted);
      max-width:650px;
    }
    .cta-actions{
      position:relative;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex-shrink:0;
    }
    .site-footer{
      padding:70px 0 28px;
      background:linear-gradient(180deg,rgba(5,11,21,.45),#050B15);
      border-top:1px solid rgba(255,255,255,.09);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr 1fr;
      gap:34px;
      padding-bottom:34px;
    }
    .footer-desc,
    .footer-small{
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .footer-title{
      color:#fff;
      font-weight:800;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(4px);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.09);
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1100px){
      .nav-tabs{
        position:absolute;
        left:20px;
        right:20px;
        top:82px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:24px;
        background:rgba(7,17,31,.96);
        box-shadow:var(--shadow);
      }
      .site-header.nav-open .nav-tabs{display:flex}
      .nav-tabs a{justify-content:center}
      .menu-toggle{display:inline-flex}
      .article-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(3,minmax(0,1fr))}
    }
    @media (max-width:860px){
      .container{width:min(100% - 28px,var(--container))}
      .site-header{padding:10px 0}
      .nav-shell{border-radius:24px}
      .header-actions .btn-primary{display:none}
      .brand-title{font-size:14px}
      .brand-sub{font-size:11px}
      .article-hero{padding:48px 0 34px}
      .article-summary{font-size:16px}
      .article-content{padding:28px 22px}
      .article-content h2{font-size:25px}
      .side-stack{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .cta-strip{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 22px,var(--container))}
      .nav-shell{padding:9px 10px}
      .brand-mark{width:34px;height:34px;border-radius:12px}
      .brand-title{max-width:176px;overflow:hidden;text-overflow:ellipsis}
      .article-title{font-size:31px}
      .meta-row{gap:8px}
      .meta-pill{width:100%;justify-content:center}
      .article-content{font-size:16px;padding:24px 18px}
      .not-found{padding:34px 18px}
      .section-heading{display:block}
      .cta-actions,.cta-actions .btn{width:100%}
      .copyright{display:grid}
    }