/* roulang page: index */
:root{
      --bg:#0f0d0b;
      --bg-deep:#090806;
      --panel:#181411;
      --panel-2:#211a15;
      --panel-soft:#2a211a;
      --text:#fff7eb;
      --muted:#c8b9a7;
      --faint:#897c6d;
      --line:rgba(255,227,193,.16);
      --line-strong:rgba(255,137,46,.42);
      --orange:#ff8a2b;
      --orange-2:#ffb15f;
      --green:#b9ff67;
      --red:#ff4e42;
      --wood:#c9894e;
      --cream:#fff3df;
      --shadow:0 26px 80px rgba(0,0,0,.38);
      --glow:0 0 0 1px rgba(255,138,43,.18), 0 18px 48px rgba(255,113,24,.13);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1220px;
      --ease:220ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      background:
        radial-gradient(circle at 8% 4%, rgba(255,138,43,.20), transparent 27%),
        radial-gradient(circle at 92% 12%, rgba(185,255,103,.08), transparent 22%),
        linear-gradient(180deg,#100d0a 0%,#0c0b09 45%,#14100d 100%);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.16;
      background-image:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(to bottom, black 0%, transparent 75%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{
      outline:3px solid rgba(255,138,43,.75);
      outline-offset:3px;
      border-radius:12px;
    }
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .section{
      padding:96px 0;
      position:relative;
    }
    .section.compact{padding:70px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--orange-2);
      background:rgba(255,138,43,.08);
      font-size:14px;
      font-weight:700;
      letter-spacing:.03em;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 18px rgba(185,255,103,.55);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:26px;
      margin-bottom:34px;
    }
    .section-head h2{
      margin:12px 0 0;
      font-size:clamp(28px,4vw,44px);
      line-height:1.14;
      letter-spacing:-.04em;
    }
    .section-head p{
      max-width:560px;
      margin:0;
      color:var(--muted);
      font-size:17px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#190d05;
      background:linear-gradient(135deg,var(--orange),var(--orange-2));
      box-shadow:0 14px 34px rgba(255,138,43,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 48px rgba(255,138,43,.38)}
    .btn-ghost{
      color:var(--cream);
      border-color:var(--line);
      background:rgba(255,255,255,.04);
    }
    .btn-ghost:hover{
      transform:translateY(-2px);
      border-color:var(--line-strong);
      background:rgba(255,138,43,.10);
      box-shadow:var(--glow);
    }
    .btn-small{min-height:38px;padding:8px 14px;font-size:14px}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }

    .topbar{
      background:#080706;
      border-bottom:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:13px;
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .topbar-left,.topbar-right{display:flex;align-items:center;gap:14px;min-width:0}
    .domain-pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:4px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      color:var(--cream);
      border:1px solid rgba(255,255,255,.09);
      white-space:nowrap;
    }
    .domain-pill::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--orange);
    }
    .topbar a{
      color:var(--orange-2);
      border-bottom:1px solid transparent;
      transition:color var(--ease), border-color var(--ease);
    }
    .topbar a:hover{color:var(--cream);border-color:var(--orange)}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(15,13,11,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,227,193,.10);
    }
    .nav{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      letter-spacing:-.03em;
      font-size:21px;
    }
    .logo-mark{
      width:42px;height:42px;
      border-radius:14px;
      background:
        linear-gradient(135deg,rgba(255,138,43,.95),rgba(255,177,95,.72)),
        linear-gradient(180deg,#2b2118,#130f0c);
      display:grid;
      place-items:center;
      box-shadow:0 12px 28px rgba(255,138,43,.22);
      border:1px solid rgba(255,255,255,.16);
      position:relative;
      overflow:hidden;
    }
    .logo-mark::before{
      content:"";
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #180d06;
      margin-left:3px;
      z-index:1;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:8px;
      border:1px solid rgba(24,13,6,.35);
      border-radius:9px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      margin-left:auto;
    }
    .nav-links a{
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      font-weight:800;
      transition:background var(--ease), color var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{
      color:var(--cream);
      background:rgba(255,138,43,.12);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;
      width:46px;height:46px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.05);
      color:var(--cream);
    }
    .menu-toggle span{
      display:block;
      width:20px;height:2px;
      background:currentColor;
      margin:5px auto;
      border-radius:2px;
      transition:transform var(--ease), opacity var(--ease);
    }

    .hero{
      padding:62px 0 86px;
    }
    .hero-stage{
      min-height:610px;
      border:1px solid rgba(255,227,193,.16);
      border-radius:38px;
      overflow:hidden;
      position:relative;
      box-shadow:var(--shadow);
      background:
        linear-gradient(115deg, rgba(8,7,6,.94) 0%, rgba(20,15,11,.78) 42%, rgba(255,138,43,.10) 100%),
        radial-gradient(circle at 70% 24%, rgba(255,138,43,.24), transparent 32%),
        linear-gradient(90deg, rgba(201,137,78,.16) 1px, transparent 1px);
      background-size:auto,auto,34px 34px;
    }
    .hero-stage::before{
      content:"";
      position:absolute;
      inset:28px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      pointer-events:none;
    }
    .hero-stage::after{
      content:"";
      position:absolute;
      right:-90px;top:-130px;
      width:520px;height:520px;
      border:2px solid rgba(255,138,43,.24);
      border-radius:50%;
      box-shadow:inset 0 0 0 28px rgba(255,138,43,.035);
    }
    .hero-content{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:34px;
      padding:58px;
      min-height:610px;
      align-items:center;
    }
    .hero-copy{
      max-width:700px;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:20px;
    }
    .hero h1{
      margin:0;
      font-size:clamp(38px,6.4vw,72px);
      line-height:1.06;
      letter-spacing:-.065em;
      max-width:820px;
    }
    .hero h1 .accent{
      color:var(--orange-2);
      text-shadow:0 0 34px rgba(255,138,43,.30);
    }
    .hero-intro{
      margin:24px 0 0;
      color:#e4d2bd;
      font-size:18px;
      max-width:690px;
    }
    .hero-cta{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:32px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:36px;
      max-width:680px;
    }
    .metric-tile{
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(0,0,0,.26);
      backdrop-filter:blur(10px);
    }
    .metric-tile strong{
      display:block;
      color:var(--orange-2);
      font-size:26px;
      line-height:1.1;
      letter-spacing:-.04em;
    }
    .metric-tile span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:13px;
    }
    .poster-wall{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
      align-items:stretch;
      transform:rotate(-1deg);
    }
    .poster-card{
      min-height:210px;
      border-radius:26px;
      border:1px solid rgba(255,227,193,.16);
      background:
        linear-gradient(145deg, rgba(255,138,43,.25), rgba(255,255,255,.05)),
        radial-gradient(circle at 40% 18%, rgba(255,255,255,.20), transparent 28%),
        #17120f;
      box-shadow:0 24px 58px rgba(0,0,0,.35);
      padding:18px;
      position:relative;
      overflow:hidden;
      transition:transform var(--ease), border-color var(--ease);
    }
    .poster-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
    .poster-card.tall{grid-row:span 2;min-height:438px}
    .poster-card::after{
      content:"";
      position:absolute;
      left:18px;right:18px;bottom:18px;height:3px;
      border-radius:99px;
      background:linear-gradient(90deg,var(--orange),transparent);
    }
    .poster-card .label{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(0,0,0,.34);
      color:var(--cream);
      font-size:13px;
      font-weight:800;
      border:1px solid rgba(255,255,255,.12);
    }
    .poster-card h3{
      position:absolute;
      left:18px;right:18px;bottom:30px;
      margin:0;
      font-size:22px;
      line-height:1.25;
    }
    .poster-card p{
      position:absolute;
      left:18px;right:18px;bottom:72px;
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .deal-ladder{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .deal-hero-card,.deal-list-card,.compare-card,.guarantee-strip,.case-card,.step-card,.topic-card,.news-card,.faq-item,.cta-panel{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.025));
      border-radius:var(--radius-lg);
      box-shadow:0 18px 48px rgba(0,0,0,.22);
      transition:transform var(--ease), border-color var(--ease), background var(--ease), box-shadow var(--ease);
    }
    .deal-hero-card:hover,.deal-list-card:hover,.compare-card:hover,.case-card:hover,.step-card:hover,.topic-card:hover,.news-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:var(--glow);
    }
    .deal-hero-card{
      padding:34px;
      min-height:420px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 78% 18%, rgba(255,138,43,.24), transparent 28%),
        linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
    }
    .deal-hero-card::after{
      content:"BD";
      position:absolute;
      right:18px;
      bottom:-20px;
      font-size:142px;
      line-height:1;
      color:rgba(255,255,255,.045);
      font-weight:950;
      letter-spacing:-.08em;
    }
    .deal-hero-card h3,.deal-list-card h3,.compare-card h3,.case-card h3,.step-card h3,.topic-card h3,.cta-panel h2{
      margin:0;
      line-height:1.25;
      letter-spacing:-.03em;
    }
    .deal-hero-card h3{font-size:32px;max-width:360px}
    .deal-hero-card p{color:var(--muted);margin:16px 0 26px;font-size:17px}
    .benefit-stack{display:grid;gap:12px;position:relative;z-index:1}
    .benefit-row{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:15px 16px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(0,0,0,.24);
      color:var(--muted);
    }
    .benefit-row strong{color:var(--cream)}
    .deal-list-card{
      padding:22px;
      display:grid;
      gap:14px;
    }
    .deal-mini{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:18px;
      background:rgba(0,0,0,.22);
      border:1px solid rgba(255,255,255,.10);
    }
    .deal-no{
      width:46px;height:46px;border-radius:15px;
      display:grid;place-items:center;
      color:#1a0c05;
      background:var(--orange);
      font-weight:950;
      letter-spacing:-.04em;
    }
    .deal-mini h3{font-size:20px}
    .deal-mini p{margin:4px 0 0;color:var(--muted);font-size:14px}
    .deal-mini a{
      color:var(--orange-2);
      font-weight:800;
    }
    .deal-mini a:hover{text-decoration:underline;text-underline-offset:5px}

    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .compare-card{
      padding:26px;
      position:relative;
      overflow:hidden;
    }
    .compare-card.featured{
      background:
        radial-gradient(circle at 88% 8%, rgba(255,138,43,.26), transparent 30%),
        linear-gradient(180deg,rgba(255,138,43,.12),rgba(255,255,255,.035));
      border-color:rgba(255,138,43,.38);
    }
    .compare-card .price{
      display:flex;
      align-items:baseline;
      gap:8px;
      margin:18px 0;
      color:var(--orange-2);
    }
    .compare-card .price strong{
      font-size:42px;
      letter-spacing:-.06em;
      line-height:1;
    }
    .compare-card ul{
      list-style:none;
      padding:0;
      margin:20px 0 26px;
      display:grid;
      gap:12px;
      color:var(--muted);
    }
    .compare-card li{
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .compare-card li::before{
      content:"";
      flex:0 0 9px;
      width:9px;height:9px;
      margin-top:9px;
      border-radius:50%;
      background:var(--green);
      box-shadow:0 0 12px rgba(185,255,103,.35);
    }

    .guarantee-strip{
      padding:22px;
      background:
        linear-gradient(90deg,rgba(255,138,43,.13),rgba(255,255,255,.04),rgba(185,255,103,.05));
    }
    .guarantee-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
    }
    .guarantee-item{
      padding:20px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(0,0,0,.20);
    }
    .guarantee-item b{
      display:block;
      font-size:24px;
      color:var(--orange-2);
      line-height:1.1;
      letter-spacing:-.04em;
    }
    .guarantee-item span{
      display:block;
      margin-top:8px;
      color:var(--muted);
      font-size:14px;
    }

    .case-layout{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .case-card{
      padding:28px;
      position:relative;
      overflow:hidden;
      min-height:280px;
    }
    .case-card.large{
      min-height:420px;
      background:
        radial-gradient(circle at 78% 20%, rgba(255,138,43,.22), transparent 28%),
        linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
    }
    .case-card h3{font-size:28px;max-width:520px}
    .case-card p{color:var(--muted);max-width:560px}
    .case-stack{display:grid;gap:18px}
    .case-visual{
      position:absolute;
      right:24px;
      bottom:24px;
      width:210px;height:138px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.14);
      background:
        linear-gradient(135deg,rgba(255,138,43,.28),rgba(255,255,255,.04)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 6px, transparent 6px 14px);
      box-shadow:0 20px 44px rgba(0,0,0,.28);
      opacity:.82;
    }
    .case-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
      position:relative;
      z-index:2;
    }

    .steps-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:22px;
      align-items:start;
    }
    .steps-intro{
      position:sticky;
      top:120px;
      padding:30px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 15% 20%, rgba(255,138,43,.18), transparent 30%),
        rgba(255,255,255,.045);
    }
    .steps-intro h2{
      margin:12px 0;
      font-size:clamp(28px,4vw,42px);
      line-height:1.12;
      letter-spacing:-.04em;
    }
    .steps-intro p{color:var(--muted);margin:0}
    .step-list{
      display:grid;
      gap:14px;
    }
    .step-card{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      padding:24px;
      align-items:start;
    }
    .step-num{
      width:58px;height:58px;border-radius:18px;
      display:grid;place-items:center;
      color:#180d06;
      background:linear-gradient(135deg,var(--orange),var(--orange-2));
      font-size:25px;
      font-weight:950;
      box-shadow:0 18px 34px rgba(255,138,43,.20);
    }
    .step-card h3{font-size:22px}
    .step-card p{margin:8px 0 0;color:var(--muted)}

    .topic-cloud{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:16px;
    }
    .topic-card{
      padding:24px;
      min-height:190px;
      position:relative;
      overflow:hidden;
    }
    .topic-card::after{
      content:"";
      position:absolute;
      width:120px;height:120px;
      right:-48px;bottom:-48px;
      border:1px solid rgba(255,138,43,.22);
      border-radius:50%;
    }
    .topic-card h3{font-size:22px}
    .topic-card p{color:var(--muted);margin:10px 0 18px}
    .topic-tags{display:flex;flex-wrap:wrap;gap:8px}

    .news-layout{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
      align-items:start;
    }
    .news-feature{
      position:sticky;
      top:120px;
      padding:30px;
      min-height:470px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,138,43,.24);
      background:
        radial-gradient(circle at 72% 18%, rgba(255,138,43,.26), transparent 32%),
        linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .news-feature::after{
      content:"";
      position:absolute;
      left:30px;right:30px;bottom:30px;height:120px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.11);
      background:
        linear-gradient(90deg, rgba(255,138,43,.18), transparent),
        repeating-linear-gradient(90deg, rgba(255,255,255,.07) 0 8px, transparent 8px 18px);
      opacity:.7;
    }
    .news-feature h3{
      margin:18px 0 12px;
      font-size:32px;
      line-height:1.2;
      letter-spacing:-.04em;
      position:relative;
      z-index:2;
    }
    .news-feature p{
      color:var(--muted);
      margin:0 0 24px;
      position:relative;
      z-index:2;
    }
    .news-feature .btn{position:relative;z-index:2}
    .news-list{
      display:grid;
      gap:13px;
    }
    .news-card{
      padding:18px;
      display:grid;
      grid-template-columns:94px 1fr;
      gap:16px;
      align-items:start;
    }
    .news-date{
      border-radius:16px;
      padding:14px 10px;
      text-align:center;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(0,0,0,.24);
      color:var(--orange-2);
      font-weight:950;
      line-height:1.15;
      letter-spacing:-.03em;
    }
    .news-date small{
      display:block;
      color:var(--faint);
      font-weight:700;
      margin-top:6px;
      letter-spacing:0;
    }
    .news-body h3{
      margin:0;
      font-size:19px;
      line-height:1.35;
    }
    .news-body p{
      margin:8px 0 12px;
      color:var(--muted);
      font-size:14px;
      line-height:1.6;
    }
    .news-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
    }
    .read-link{
      color:var(--orange-2);
      font-weight:850;
      display:inline-flex;
      align-items:center;
      gap:6px;
      transition:gap var(--ease), color var(--ease);
    }
    .read-link:hover{
      gap:10px;
      color:var(--cream);
      text-decoration:underline;
      text-decoration-color:var(--orange);
      text-underline-offset:5px;
    }
    .empty-state{
      padding:34px;
      border:1px dashed rgba(255,138,43,.40);
      border-radius:var(--radius-lg);
      background:rgba(255,138,43,.06);
      text-align:center;
      color:var(--muted);
    }
    .empty-icon{
      width:62px;height:62px;
      margin:0 auto 14px;
      border-radius:20px;
      display:grid;place-items:center;
      background:rgba(255,138,43,.13);
      color:var(--orange-2);
      font-size:26px;
      border:1px solid rgba(255,138,43,.24);
    }

    .faq-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:start;
    }
    .faq-panel{
      padding:30px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
    }
    .faq-panel h2{
      margin:12px 0;
      font-size:clamp(28px,4vw,42px);
      line-height:1.12;
      letter-spacing:-.04em;
    }
    .faq-panel p{color:var(--muted);margin:0}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      padding:0;
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      padding:20px 22px;
      border:0;
      background:transparent;
      color:var(--cream);
      text-align:left;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-weight:900;
      font-size:17px;
    }
    .faq-question .plus{
      flex:0 0 32px;
      width:32px;height:32px;border-radius:50%;
      display:grid;place-items:center;
      color:#1a0d05;
      background:var(--orange);
      transition:transform var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .plus{transform:rotate(45deg)}

    .limit-entry{
      padding:34px;
      border-radius:34px;
      border:1px solid rgba(255,138,43,.30);
      background:
        linear-gradient(120deg, rgba(255,138,43,.20), rgba(255,255,255,.04) 42%, rgba(185,255,103,.07)),
        #15110e;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:26px;
      align-items:center;
      position:relative;
      overflow:hidden;
    }
    .limit-entry::after{
      content:"";
      position:absolute;
      inset:auto -80px -130px auto;
      width:360px;height:360px;
      border-radius:50%;
      border:2px solid rgba(255,138,43,.20);
    }
    .limit-entry h2{
      margin:12px 0;
      font-size:clamp(30px,4.7vw,52px);
      line-height:1.08;
      letter-spacing:-.055em;
    }
    .limit-entry p{color:#ead7bf;margin:0;max-width:680px}
    .count-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      position:relative;
      z-index:1;
    }
    .count-box{
      padding:20px 14px;
      border-radius:20px;
      text-align:center;
      background:rgba(0,0,0,.28);
      border:1px solid rgba(255,255,255,.12);
    }
    .count-box strong{
      display:block;
      color:var(--orange-2);
      font-size:34px;
      line-height:1;
      letter-spacing:-.05em;
    }
    .count-box span{
      display:block;
      margin-top:8px;
      color:var(--muted);
      font-size:13px;
    }
    .limit-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }

    .contact-form{
      display:grid;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .form-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .field label{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin:0 0 7px 2px;
      font-weight:800;
    }
    .field input,.field textarea{
      width:100%;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(0,0,0,.28);
      color:var(--cream);
      border-radius:16px;
      padding:13px 14px;
      outline:0;
      transition:border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#766a5c}
    .field input:focus,.field textarea:focus{
      border-color:rgba(255,138,43,.74);
      box-shadow:0 0 0 4px rgba(255,138,43,.12);
      background:rgba(0,0,0,.36);
    }

    .site-footer{
      padding:58px 0 28px;
      background:#080706;
      border-top:1px solid rgba(255,138,43,.25);
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      top:0;left:0;right:0;height:2px;
      background:linear-gradient(90deg,transparent,var(--orange),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .7fr .7fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand p{
      color:var(--muted);
      max-width:520px;
      margin:16px 0 0;
    }
    .footer-col h3{
      margin:0 0 14px;
      font-size:16px;
      color:var(--cream);
    }
    .footer-col a,.footer-col span{
      display:block;
      color:var(--muted);
      margin:9px 0;
      transition:color var(--ease), transform var(--ease);
    }
    .footer-col a:hover{
      color:var(--orange-2);
      transform:translateX(3px);
    }
    .copyright{
      margin-top:38px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--faint);
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      font-size:14px;
    }

    @media (max-width:1024px){
      .section{padding:76px 0}
      .hero-content{
        grid-template-columns:1fr;
        padding:44px;
      }
      .poster-wall{
        transform:none;
        max-width:720px;
      }
      .deal-ladder,.steps-wrap,.news-layout,.faq-grid,.limit-entry,.case-layout{
        grid-template-columns:1fr;
      }
      .steps-intro,.news-feature{position:relative;top:auto}
      .compare-grid{grid-template-columns:1fr}
      .guarantee-grid{grid-template-columns:1fr 1fr}
      .topic-cloud{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .nav-links{
        position:absolute;
        left:20px;right:20px;top:116px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border-radius:22px;
        border:1px solid var(--line);
        background:rgba(12,10,8,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{padding:14px 16px}
      .menu-toggle{display:block}
      .nav-actions .btn{display:none}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .topbar-inner{min-height:34px}
      .topbar-left span:not(.domain-pill),.topbar-right span{display:none}
      .nav{min-height:68px}
      .logo{font-size:18px}
      .logo-mark{width:38px;height:38px}
      .hero{padding:36px 0 58px}
      .hero-stage{border-radius:26px;min-height:auto}
      .hero-stage::before{inset:14px;border-radius:20px}
      .hero-content{padding:30px 22px}
      .hero-intro{font-size:16px}
      .hero-cta .btn{width:100%}
      .hero-metrics{grid-template-columns:1fr}
      .poster-wall{grid-template-columns:1fr}
      .poster-card,.poster-card.tall{min-height:210px}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .deal-mini{grid-template-columns:auto 1fr}
      .deal-mini a{grid-column:2}
      .guarantee-grid,.topic-cloud,.footer-grid,.form-row,.count-row{grid-template-columns:1fr}
      .news-card{grid-template-columns:1fr}
      .news-date{text-align:left}
      .case-visual{display:none}
      .copyright{display:block}
    }
    @media (max-width:520px){
      .section{padding:58px 0}
      .hero h1{font-size:38px}
      .hero-content{padding:26px 18px}
      .deal-hero-card,.deal-list-card,.compare-card,.case-card,.steps-intro,.faq-panel,.limit-entry{padding:22px}
      .step-card{grid-template-columns:1fr}
      .btn{width:100%}
      .limit-actions{width:100%}
    }

/* roulang page: article */
:root{
      --bg:#0f0d0b;
      --bg-deep:#090806;
      --panel:#181411;
      --panel-2:#211a15;
      --panel-soft:#2a211a;
      --text:#fff7eb;
      --muted:#c8b9a7;
      --faint:#897c6d;
      --line:rgba(255,227,193,.16);
      --line-strong:rgba(255,137,46,.42);
      --orange:#ff8a2b;
      --orange-2:#ffb15f;
      --green:#b9ff67;
      --red:#ff4e42;
      --wood:#c9894e;
      --cream:#fff3df;
      --shadow:0 26px 80px rgba(0,0,0,.38);
      --glow:0 0 0 1px rgba(255,138,43,.18), 0 18px 48px rgba(255,113,24,.13);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1220px;
      --ease:220ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      background:
        radial-gradient(circle at 8% 4%, rgba(255,138,43,.20), transparent 27%),
        radial-gradient(circle at 92% 12%, rgba(185,255,103,.08), transparent 22%),
        linear-gradient(180deg,#100d0a 0%,#0c0b09 45%,#14100d 100%);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.16;
      background-image:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(to bottom, black 0%, transparent 75%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .section{padding:96px 0;position:relative}
    .section.compact{padding:70px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border:1px solid var(--line);border-radius:999px;
      color:var(--orange-2);background:rgba(255,138,43,.08);
      font-size:14px;font-weight:700;letter-spacing:.03em;
    }
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 18px rgba(185,255,103,.55)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:26px;margin-bottom:34px}
    .section-head h2{margin:12px 0 0;font-size:clamp(28px,4vw,44px);line-height:1.14;letter-spacing:-.04em}
    .section-head p{max-width:560px;margin:0;color:var(--muted);font-size:17px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:13px 20px;
      border-radius:999px;border:1px solid transparent;font-weight:800;
      transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space:nowrap;
    }
    .btn-primary{color:#190d05;background:linear-gradient(135deg,var(--orange),var(--orange-2));box-shadow:0 14px 34px rgba(255,138,43,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 48px rgba(255,138,43,.38)}
    .btn-ghost{color:var(--cream);border-color:var(--line);background:rgba(255,255,255,.04)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(255,138,43,.10);box-shadow:var(--glow)}
    .btn-small{min-height:38px;padding:8px 14px;font-size:14px}
    .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:var(--muted);font-size:13px;font-weight:700}
    .topbar{background:#080706;border-bottom:1px solid rgba(255,255,255,.08);color:var(--muted);font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar-left,.topbar-right{display:flex;align-items:center;gap:14px;min-width:0}
    .domain-pill{display:inline-flex;align-items:center;gap:7px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.06);color:var(--cream);border:1px solid rgba(255,255,255,.09);white-space:nowrap}
    .domain-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
    .topbar a{color:var(--orange-2);border-bottom:1px solid transparent;transition:color var(--ease), border-color var(--ease)}
    .topbar a:hover{color:var(--cream);border-color:var(--orange)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(15,13,11,.78);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,227,193,.10)}
    .nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:950;letter-spacing:-.03em;font-size:21px}
    .logo-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,rgba(255,138,43,.95),rgba(255,177,95,.72)),linear-gradient(180deg,#2b2118,#130f0c);display:grid;place-items:center;box-shadow:0 12px 28px rgba(255,138,43,.22);border:1px solid rgba(255,255,255,.16);position:relative;overflow:hidden}
    .logo-mark::before{content:"";width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;border-left:13px solid #180d06;margin-left:3px;z-index:1}
    .logo-mark::after{content:"";position:absolute;inset:8px;border:1px solid rgba(24,13,6,.35);border-radius:10px}
    .nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center}
    .nav-links a{padding:10px 14px;border-radius:999px;color:var(--muted);border:1px solid transparent;transition:background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease)}
    .nav-links a:hover,.nav-links a.active{color:var(--cream);background:rgba(255,255,255,.05);border-color:var(--line-strong)}
    .nav-cta{display:flex;align-items:center;gap:12px}
    .nav-toggle{display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--cream)}
    .nav-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:0 auto;box-shadow:0 6px 0 currentColor,0 -6px 0 currentColor}
    .hero{padding:34px 0 56px}
    .hero-shell{
      display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:28px;align-items:stretch;
      border:1px solid var(--line);border-radius:var(--radius-xl);background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));box-shadow:var(--shadow);overflow:hidden;position:relative
    }
    .hero-shell::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg, rgba(255,138,43,.14), transparent 34%, transparent 70%, rgba(185,255,103,.06));pointer-events:none}
    .hero-copy{padding:46px 44px 42px;position:relative;z-index:1}
    .hero-copy h1{margin:18px 0 16px;font-size:clamp(36px,6vw,68px);line-height:1.06;letter-spacing:-.05em;max-width:10ch}
    .hero-copy p{margin:0;color:var(--muted);font-size:18px;max-width:46ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .hero-trust .tag{background:rgba(255,255,255,.04)}
    .hero-side{padding:22px;border-left:1px solid var(--line);background:linear-gradient(180deg,rgba(24,20,17,.98),rgba(16,13,10,.98));position:relative}
    .screen{border-radius:24px;border:1px solid rgba(255,255,255,.09);background:linear-gradient(180deg,#140f0b,#0c0907);padding:18px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.03)}
    .screen-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
    .screen-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--orange-2);font-weight:700}
    .screen-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 14px rgba(185,255,103,.55)}
    .scoreboard{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .score-item{padding:18px;border-radius:18px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08)}
    .score-item strong{display:block;font-size:28px;line-height:1;color:var(--cream);margin-bottom:8px}
    .score-item span{display:block;font-size:13px;color:var(--muted)}
    .preview-card{margin-top:14px;padding:18px;border-radius:20px;border:1px solid rgba(255,138,43,.18);background:linear-gradient(145deg,rgba(255,138,43,.10),rgba(255,255,255,.03))}
    .preview-card h3{margin:0 0 10px;font-size:20px}
    .preview-card p{margin:0;color:var(--muted);font-size:15px}
    .preview-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .preview-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px}
    .mini-box{padding:14px 12px;border-radius:16px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);text-align:center}
    .mini-box strong{display:block;font-size:18px;color:var(--orange-2);margin-bottom:4px}
    .mini-box span{display:block;font-size:12px;color:var(--muted)}
    .panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.02));box-shadow:var(--shadow)}
    .section-kicker{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}
    .section-kicker h2{margin:0;font-size:clamp(28px,4vw,40px);line-height:1.1}
    .section-kicker p{margin:8px 0 0;color:var(--muted);max-width:720px}
    .services-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:18px}
    .feature-large{padding:28px;border-radius:28px;background:linear-gradient(135deg,rgba(255,138,43,.10),rgba(255,255,255,.03));border:1px solid rgba(255,138,43,.18);position:relative;overflow:hidden}
    .feature-large::after{content:"";position:absolute;inset:auto -10% 10% auto;width:280px;height:280px;background:radial-gradient(circle, rgba(255,138,43,.18), transparent 70%);pointer-events:none}
    .feature-large h3{margin:16px 0 10px;font-size:30px;line-height:1.15}
    .feature-large p{margin:0;color:var(--muted);max-width:40ch;font-size:16px}
    .feature-large .feature-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
    .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .feature-card{padding:18px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);transition:transform var(--ease), border-color var(--ease), background var(--ease), box-shadow var(--ease)}
    .feature-card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(255,138,43,.07);box-shadow:var(--glow)}
    .feature-card h4{margin:14px 0 8px;font-size:18px}
    .feature-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .icon-badge{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:14px;background:rgba(255,138,43,.12);color:var(--orange-2);border:1px solid rgba(255,138,43,.18);font-size:18px}
    .metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .metric-card{padding:22px;border-radius:22px;background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);position:relative;overflow:hidden}
    .metric-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--orange),transparent)}
    .metric-card strong{display:block;font-size:32px;line-height:1;color:var(--cream);margin-bottom:10px}
    .metric-card span{display:block;color:var(--muted);font-size:14px}
    .cases-grid{display:grid;grid-template-columns:1.35fr .65fr .65fr;gap:16px;align-items:stretch}
    .case-card{padding:24px;border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:16px;min-height:280px}
    .case-card.featured{background:linear-gradient(145deg,rgba(255,138,43,.12),rgba(255,255,255,.03));border-color:rgba(255,138,43,.20)}
    .poster{aspect-ratio:16/10;border-radius:18px;background:
      linear-gradient(135deg, rgba(255,138,43,.24), rgba(255,177,95,.06)),
      repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 2px, transparent 2px 14px),
      linear-gradient(180deg,#1b1511,#0e0b09);
      border:1px solid rgba(255,255,255,.10);position:relative;overflow:hidden}
    .poster::before{content:"高清";position:absolute;left:18px;top:18px;padding:6px 10px;border-radius:999px;background:rgba(9,8,6,.72);color:var(--cream);font-size:12px;font-weight:800;letter-spacing:.08em}
    .poster::after{content:"";position:absolute;inset:18px;border:1px solid rgba(255,255,255,.10);border-radius:14px}
    .case-card h3{margin:0;font-size:22px}
    .case-card p{margin:0;color:var(--muted);font-size:15px}
    .link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange-2);font-weight:800;margin-top:auto;width:max-content}
    .link-arrow::after{content:"→";transition:transform var(--ease)}
    .link-arrow:hover::after{transform:translateX(4px)}
    .steps-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step-card{padding:22px;border-radius:22px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);position:relative}
    .step-card .step-num{display:inline-flex;align-items:center;justify-content:center;min-width:46px;height:46px;padding:0 14px;border-radius:14px;background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#1b1007;font-weight:900;font-size:20px;box-shadow:0 14px 24px rgba(255,138,43,.18)}
    .step-card h3{margin:14px 0 8px;font-size:20px}
    .step-card p{margin:0;color:var(--muted);font-size:14px}
    .step-card .tag{margin-top:14px}
    .updates-wrap{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:18px;align-items:stretch}
    .lead-article{padding:26px;border-radius:26px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:14px;min-height:100%}
    .lead-article .cover{aspect-ratio:16/9;border-radius:20px;background:
      linear-gradient(135deg,rgba(255,138,43,.22),rgba(185,255,103,.05)),
      linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.10);position:relative;overflow:hidden}
    .lead-article .cover::before{content:"最新动态";position:absolute;left:18px;bottom:18px;padding:8px 12px;border-radius:999px;background:rgba(9,8,6,.75);color:var(--cream);font-size:12px;font-weight:800}
    .lead-article h3{margin:0;font-size:24px;line-height:1.25}
    .lead-article p{margin:0;color:var(--muted)}
    .article-list{display:flex;flex-direction:column;gap:12px}
    .article-item{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:start;padding:18px 18px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);transition:transform var(--ease), border-color var(--ease), background var(--ease)}
    .article-item:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(255,138,43,.06)}
    .article-time{min-width:76px;padding:10px 12px;border-radius:16px;background:rgba(255,138,43,.10);border:1px solid rgba(255,138,43,.16);text-align:center}
    .article-time strong{display:block;font-size:18px;line-height:1;color:var(--cream)}
    .article-time span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .article-item h3{margin:0 0 8px;font-size:18px;line-height:1.35}
    .article-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
    .article-meta .tag{background:rgba(255,255,255,.04)}
    .faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    details.faq-item{padding:18px 20px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);transition:border-color var(--ease), background var(--ease), box-shadow var(--ease)}
    details.faq-item[open]{border-color:var(--line-strong);background:rgba(255,138,43,.06);box-shadow:var(--glow)}
    details.faq-item summary{list-style:none;cursor:pointer;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary::after{content:"＋";color:var(--orange-2);font-size:20px;transition:transform var(--ease)}
    details.faq-item[open] summary::after{content:"－"}
    details.faq-item p{margin:14px 0 0;color:var(--muted);font-size:15px;line-height:1.8}
    .contact-shell{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:18px;align-items:stretch}
    .contact-copy{padding:30px;border-radius:28px;background:linear-gradient(145deg,rgba(255,138,43,.14),rgba(255,255,255,.03));border:1px solid rgba(255,138,43,.18);position:relative;overflow:hidden}
    .contact-copy::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(255,138,43,.18),transparent 70%)}
    .contact-copy h2{margin:14px 0 12px;font-size:clamp(28px,4vw,42px);line-height:1.12}
    .contact-copy p{margin:0;color:var(--muted);max-width:44ch}
    .contact-points{display:grid;gap:10px;margin-top:20px}
    .contact-point{display:flex;align-items:center;gap:10px;color:var(--cream)}
    .contact-point::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(255,138,43,.10)}
    .contact-form{padding:26px;border-radius:28px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08)}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    .field label{font-size:14px;color:var(--muted);font-weight:700}
    .field input,.field textarea{
      width:100%;border-radius:16px;border:1px solid rgba(255,255,255,.10);background:rgba(8,7,6,.65);color:var(--text);
      padding:14px 15px;outline:none;transition:border-color var(--ease), box-shadow var(--ease), background var(--ease)
    }
    .field input::placeholder,.field textarea::placeholder{color:#8c7b6b}
    .field input:focus,.field textarea:focus{border-color:var(--line-strong);box-shadow:0 0 0 4px rgba(255,138,43,.14);background:rgba(20,15,11,.88)}
    .field textarea{min-height:126px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px}
    .site-footer{padding:42px 0 28px;background:linear-gradient(180deg,#0a0806,#070605);border-top:1px solid rgba(255,227,193,.10);margin-top:30px}
    .footer-grid{display:grid;grid-template-columns:minmax(0,1.2fr) repeat(2,minmax(0,.9fr));gap:20px;padding-bottom:22px}
    .footer-brand p{margin:14px 0 0;color:var(--muted);max-width:36ch}
    .footer-col{display:grid;gap:10px;align-content:start}
    .footer-col h3{margin:0 0 6px;font-size:16px;color:var(--cream)}
    .footer-col a,.footer-col span{color:var(--muted);font-size:14px}
    .footer-col a:hover{color:var(--orange-2)}
    .copyright{padding-top:18px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--faint);font-size:13px}
    .content-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
    .article-rail{position:sticky;top:102px;display:grid;gap:14px}
    .rail-card{padding:18px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08)}
    .rail-card h3{margin:0 0 12px;font-size:18px}
    .rail-card ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
    .rail-card li{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px}
    .article-card{
      padding:30px;border-radius:28px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow)
    }
    .breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted);font-size:14px}
    .breadcrumbs a{color:var(--orange-2)}
    .breadcrumbs span.sep{color:var(--faint)}
    .article-head{padding:22px 0 24px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:24px}
    .article-head h1{margin:12px 0 12px;font-size:clamp(32px,5vw,54px);line-height:1.12;letter-spacing:-.04em}
    .article-summary{margin:0;color:var(--muted);font-size:17px;max-width:60ch}
    .article-meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .article-meta-row .tag{background:rgba(255,255,255,.04)}
    .article-meta-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:20px}
    .meta-box{padding:16px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08)}
    .meta-box span{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}
    .meta-box strong{display:block;font-size:16px;color:var(--cream)}
    .article-body{max-width:820px;font-size:17px;line-height:1.85;color:var(--text)}
    .article-body h2,.article-body h3{line-height:1.22;letter-spacing:-.03em;margin:28px 0 14px}
    .article-body h2{font-size:28px}
    .article-body h3{font-size:22px}
    .article-body p{margin:0 0 18px;color:var(--text)}
    .article-body ul,.article-body ol{margin:0 0 18px 22px;padding:0;color:var(--text)}
    .article-body li{margin:0 0 10px}
    .article-body blockquote{margin:0 0 18px;padding:18px 20px;border-left:4px solid var(--orange);border-radius:0 18px 18px 0;background:rgba(255,138,43,.08);color:var(--cream)}
    .article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:0 0 20px;border:1px solid rgba(255,255,255,.10);border-radius:18px;overflow:hidden}
    .article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}
    .article-body th{background:rgba(255,255,255,.04);color:var(--cream)}
    .article-body code{padding:2px 6px;border-radius:8px;background:rgba(255,255,255,.08);color:#ffd9b1}
    .article-body pre{overflow:auto;padding:18px;border-radius:18px;background:#0b0907;border:1px solid rgba(255,255,255,.08);color:#ffd9b1}
    .article-body hr{border:none;border-top:1px solid rgba(255,255,255,.08);margin:28px 0}
    .inline-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0 0 22px}
    .inline-image{border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.03)}
    .inline-image .img{aspect-ratio:16/9;background:linear-gradient(135deg,rgba(255,138,43,.22),rgba(255,255,255,.03))}
    .inline-image figcaption{padding:12px 14px;color:var(--muted);font-size:13px}
    .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .related-card{padding:18px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);display:grid;gap:10px}
    .related-card h3{margin:0;font-size:18px;line-height:1.4}
    .related-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .empty-state{padding:26px;border-radius:22px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);text-align:center;color:var(--muted)}
    .empty-state h3{margin:0 0 10px;color:var(--cream)}
    .empty-state p{margin:0 0 18px}
    .section-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);margin:0}
    .note-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);margin-bottom:18px}
    .note-bar strong{color:var(--cream)}
    .note-bar span{color:var(--muted);font-size:14px}
    .sticky-summary{display:grid;gap:14px}
    .summary-card{padding:18px;border-radius:20px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08)}
    .summary-card h3{margin:0 0 10px;font-size:18px}
    .summary-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .focus-link:focus-visible,.btn:focus-visible,.nav-links a:focus-visible,.topbar a:focus-visible,.logo:focus-visible{outline:3px solid rgba(255,138,43,.55);outline-offset:3px}
    @media (max-width: 1199px){
      .hero-shell,.services-grid,.updates-wrap,.contact-shell,.content-shell,.footer-grid{grid-template-columns:1fr}
      .hero-side{border-left:none;border-top:1px solid var(--line)}
      .article-rail{position:static}
      .metric-grid,.cases-grid,.steps-grid,.related-grid,.article-meta-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width: 991px){
      .nav-toggle{display:inline-grid;place-items:center}
      .nav-links{display:none;position:absolute;left:0;right:0;top:100%;padding:14px 20px 20px;background:rgba(9,8,6,.98);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 24px 46px rgba(0,0,0,.34)}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch;gap:8px}
      .nav-links a{padding:13px 14px;border-radius:16px}
      .nav{position:relative;flex-wrap:wrap}
      .nav-cta{margin-left:auto}
      .content-shell{grid-template-columns:1fr}
      .article-rail{order:2}
      .article-card{order:1}
      .faq-list{grid-template-columns:1fr}
      .metric-grid,.cases-grid,.steps-grid,.related-grid,.article-meta-grid,.preview-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
      .scoreboard{grid-template-columns:1fr}
      .article-item{grid-template-columns:1fr;gap:10px}
      .article-time{width:max-content}
    }
    @media (max-width: 767px){
      .section{padding:72px 0}
      .section.compact{padding:56px 0}
      .topbar-inner{flex-direction:column;align-items:flex-start;padding:10px 0}
      .nav{min-height:68px}
      .logo{font-size:18px}
      .logo-mark{width:38px;height:38px}
      .hero{padding:22px 0 42px}
      .hero-copy{padding:30px 22px 26px}
      .hero-copy h1{max-width:none;font-size:clamp(32px,10vw,48px)}
      .hero-copy p{font-size:16px}
      .screen{padding:14px}
      .feature-list,.form-grid,.inline-gallery{grid-template-columns:1fr}
      .metric-grid,.cases-grid,.steps-grid,.related-grid,.article-meta-grid,.preview-strip,.article-meta-grid,.footer-grid{grid-template-columns:1fr}
      .section-head,.section-kicker{flex-direction:column;align-items:flex-start}
      .services-grid,.contact-shell,.updates-wrap{gap:14px}
      .contact-copy,.contact-form,.article-card{padding:22px}
      .case-card,.feature-large,.lead-article{padding:20px}
      .article-head h1{font-size:clamp(30px,8vw,42px)}
      .article-body{font-size:16px}
      .copyright{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 28px))}
      .hero-actions,.form-actions{flex-direction:column;align-items:stretch}
      .btn,.btn-small{width:100%}
      .nav-cta .btn{display:none}
      .nav-links.open{padding-inline:16px}
      .preview-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
      .article-item{padding:14px}
      .article-time{width:100%}
      .article-time strong{font-size:16px}
      .note-bar{flex-direction:column;align-items:flex-start}
    }