/* roulang page: index */
:root{
      --bg:#0b1020;
      --bg-soft:#111936;
      --bg-card:#ffffff;
      --surface:#f6f7fb;
      --surface-2:#edf1f8;
      --text:#172033;
      --text-soft:#5f6b82;
      --muted:#8791a5;
      --white:#ffffff;
      --primary:#8b5cf6;
      --primary-dark:#6d3ee6;
      --primary-soft:#efe8ff;
      --accent:#ff6b8a;
      --accent-soft:#fff0f4;
      --cyan:#22d3ee;
      --success:#14b87a;
      --warning:#f59e0b;
      --border:#dfe5ef;
      --border-dark:rgba(255,255,255,.16);
      --shadow:0 20px 55px rgba(15,23,42,.12);
      --shadow-soft:0 12px 35px rgba(15,23,42,.08);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1180px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:linear-gradient(180deg,#fbfcff 0%,#f2f5fb 46%,#ffffff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--primary);color:var(--white)}

    .container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(223,229,239,.76);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--text);
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:
        radial-gradient(circle at 72% 22%,rgba(255,255,255,.55) 0 10%,transparent 11%),
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 28px rgba(139,92,246,.32);
    }
    .logo-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .logo-text strong{font-size:18px}
    .logo-text span{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--border);
      background:rgba(246,247,251,.74);
      border-radius:999px;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 18px;
      border-radius:999px;
      color:var(--text-soft);
      font-size:14px;
      font-weight:800;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--primary-dark);
      background:#fff;
      box-shadow:var(--shadow-soft);
      outline:none;
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 10px 24px rgba(139,92,246,.24);
    }
    .nav-action{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:var(--surface);
      color:var(--text);
      border:1px solid var(--border);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 22px;
      border-radius:999px;
      font-size:15px;
      font-weight:900;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 16px 35px rgba(139,92,246,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 45px rgba(139,92,246,.34)}
    .btn-secondary{
      color:var(--text);
      background:#fff;
      border-color:var(--border);
      box-shadow:var(--shadow-soft);
    }
    .btn-secondary:hover{border-color:rgba(139,92,246,.45);color:var(--primary-dark);transform:translateY(-2px)}
    .btn-dark{
      color:#fff;
      background:#111827;
      box-shadow:0 16px 35px rgba(17,24,39,.18);
    }
    .btn-dark:hover{background:#000;transform:translateY(-2px)}
    .btn:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(139,92,246,.26);
      outline-offset:3px;
    }

    .hero{
      position:relative;
      min-height:720px;
      overflow:hidden;
      color:#fff;
      background:
        linear-gradient(115deg,rgba(9,13,31,.94) 0%,rgba(19,18,54,.82) 50%,rgba(91,33,75,.70) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:auto -20% -36% -20%;
      height:420px;
      background:radial-gradient(circle,rgba(139,92,246,.45),transparent 64%);
      filter:blur(18px);
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:58px 58px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.18));
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:2;
      padding:118px 0 88px;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:54px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border-radius:999px;
      color:#f6efff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      backdrop-filter:blur(12px);
      font-size:13px;
      font-weight:900;
    }
    .eyebrow i{
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 6px rgba(34,211,238,.14);
    }
    .hero h1{
      margin-top:24px;
      font-size:clamp(42px,6vw,74px);
      line-height:1.03;
      letter-spacing:-.055em;
      max-width:820px;
    }
    .hero h1 span{
      color:transparent;
      background:linear-gradient(135deg,#ffffff 0%,#d8c7ff 38%,#ff9bb1 100%);
      -webkit-background-clip:text;
      background-clip:text;
    }
    .hero-subtitle{
      margin-top:24px;
      max-width:710px;
      color:rgba(255,255,255,.82);
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{
      margin-top:34px;
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:14px;
    }
    .hero-note{
      margin-top:20px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:rgba(255,255,255,.78);
      font-size:13px;
    }
    .hero-note span{
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.15);
      background:rgba(255,255,255,.08);
    }
    .hero-panel{
      padding:22px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 30px 90px rgba(0,0,0,.26);
      backdrop-filter:blur(18px);
    }
    .dashboard-card{
      overflow:hidden;
      border-radius:24px;
      background:#fff;
      color:var(--text);
      box-shadow:0 22px 70px rgba(0,0,0,.25);
    }
    .dash-cover{
      position:relative;
      height:230px;
      background:url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .dash-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 30%,rgba(10,14,30,.78) 100%);
    }
    .play-badge{
      position:absolute;
      left:22px;
      bottom:20px;
      z-index:2;
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
    }
    .play-badge em{
      width:48px;
      height:48px;
      border-radius:50%;
      display:grid;
      place-items:center;
      font-style:normal;
      background:rgba(255,255,255,.2);
      border:1px solid rgba(255,255,255,.26);
      backdrop-filter:blur(10px);
    }
    .dash-body{padding:22px}
    .status-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-bottom:18px;
    }
    .status{
      padding:14px;
      border-radius:18px;
      background:var(--surface);
      border:1px solid var(--border);
    }
    .status strong{display:block;font-size:22px;line-height:1;color:var(--text)}
    .status span{display:block;margin-top:8px;font-size:12px;color:var(--muted);font-weight:800}
    .secure-list{
      display:grid;
      gap:10px;
    }
    .secure-list li{
      list-style:none;
      display:flex;
      align-items:flex-start;
      gap:10px;
      padding:11px 12px;
      border-radius:14px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--text-soft);
      font-size:14px;
    }
    .secure-list li::before{
      content:"✓";
      display:grid;
      place-items:center;
      flex:0 0 22px;
      height:22px;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
    }

    main{position:relative}
    .section{
      padding:92px 0;
    }
    .section-sm{padding:72px 0}
    .section-head{
      max-width:760px;
      margin-bottom:34px;
    }
    .section-head.center{
      text-align:center;
      margin-left:auto;
      margin-right:auto;
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:9px;
      color:var(--primary-dark);
      font-size:13px;
      font-weight:900;
      padding:7px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      margin-bottom:14px;
    }
    .kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
    }
    .section-title{
      font-size:clamp(30px,4.2vw,48px);
      line-height:1.16;
      letter-spacing:-.035em;
      color:var(--text);
    }
    .section-desc{
      margin-top:16px;
      color:var(--text-soft);
      font-size:17px;
      line-height:1.9;
    }
    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }
    .grid-2{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:28px;
      align-items:center;
    }
    .card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
    }
    .card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow);
      border-color:rgba(139,92,246,.26);
    }
    .feature-card{
      padding:28px;
      min-height:260px;
    }
    .icon{
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      font-size:22px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 14px 30px rgba(139,92,246,.22);
      margin-bottom:18px;
    }
    .feature-card h3{
      font-size:21px;
      line-height:1.35;
      margin-bottom:10px;
      letter-spacing:-.02em;
    }
    .feature-card p{
      color:var(--text-soft);
      font-size:15px;
    }
    .feature-card .tagline{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      color:var(--primary-dark);
      background:var(--primary-soft);
      font-size:12px;
      font-weight:900;
    }

    .image-panel{
      position:relative;
      min-height:500px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      box-shadow:var(--shadow);
      background:#111827;
    }
    .image-panel img{
      width:100%;
      height:100%;
      min-height:500px;
      object-fit:cover;
    }
    .image-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(11,16,32,.05),rgba(11,16,32,.68));
    }
    .image-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      z-index:2;
      padding:20px;
      color:#fff;
      border-radius:20px;
      background:rgba(255,255,255,.13);
      border:1px solid rgba(255,255,255,.2);
      backdrop-filter:blur(16px);
    }
    .image-caption strong{display:block;font-size:22px;margin-bottom:6px}
    .image-caption span{color:rgba(255,255,255,.78);font-size:14px}
    .info-stack{
      display:grid;
      gap:16px;
    }
    .info-item{
      display:flex;
      gap:16px;
      padding:20px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
    }
    .info-num{
      flex:0 0 42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:#111827;
      font-weight:900;
    }
    .info-item h3{font-size:18px;margin-bottom:4px}
    .info-item p{color:var(--text-soft);font-size:15px}

    .scenario{
      background:
        radial-gradient(circle at 16% 0%,rgba(139,92,246,.12),transparent 34%),
        radial-gradient(circle at 84% 22%,rgba(255,107,138,.12),transparent 32%),
        var(--surface);
    }
    .scenario-card{
      min-height:340px;
    }
    .scenario-card img{
      width:100%;
      height:178px;
      object-fit:cover;
    }
    .scenario-body{
      padding:22px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      color:#9f1239;
      background:var(--accent-soft);
      font-size:12px;
      font-weight:900;
      margin-bottom:12px;
    }
    .scenario-body h3{
      font-size:20px;
      margin-bottom:9px;
    }
    .scenario-body p{
      color:var(--text-soft);
      font-size:15px;
    }

    .process{
      counter-reset:step;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step{
      counter-increment:step;
      position:relative;
      padding:24px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
    }
    .step::before{
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:44px;
      height:44px;
      border-radius:15px;
      margin-bottom:18px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      font-weight:900;
    }
    .step h3{font-size:18px;margin-bottom:8px}
    .step p{font-size:14px;color:var(--text-soft)}

    .latest{
      background:#0b1020;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .latest::before{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-180px;
      top:-180px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(139,92,246,.38),transparent 66%);
    }
    .latest .section-title{color:#fff}
    .latest .section-desc{color:rgba(255,255,255,.72)}
    .post-grid{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .post-card{
      display:flex;
      gap:16px;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(14px);
      transition:var(--ease);
    }
    .post-card:hover{
      transform:translateY(-4px);
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.26);
    }
    .post-date{
      flex:0 0 82px;
      min-height:82px;
      border-radius:18px;
      display:grid;
      place-items:center;
      text-align:center;
      color:#fff;
      background:linear-gradient(135deg,rgba(139,92,246,.9),rgba(255,107,138,.86));
      font-size:13px;
      font-weight:900;
      padding:10px;
    }
    .post-body h3{
      font-size:18px;
      line-height:1.45;
      margin-bottom:8px;
    }
    .post-body p{
      color:rgba(255,255,255,.72);
      font-size:14px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-meta{
      margin-top:12px;
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      color:rgba(255,255,255,.8);
      font-size:12px;
      font-weight:800;
    }
    .empty{
      grid-column:1/-1;
      padding:26px;
      border-radius:22px;
      color:rgba(255,255,255,.72);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }

    .proof-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:stretch;
    }
    .proof-card{
      padding:32px;
      border-radius:var(--radius-xl);
      color:#fff;
      background:
        linear-gradient(145deg,rgba(17,24,39,.88),rgba(91,33,182,.82)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .proof-card h2{
      font-size:34px;
      line-height:1.2;
      letter-spacing:-.03em;
      margin-bottom:16px;
    }
    .proof-card p{color:rgba(255,255,255,.78)}
    .metrics{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .metric{
      padding:18px;
      border-radius:18px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
    }
    .metric strong{display:block;font-size:32px;line-height:1}
    .metric span{display:block;margin-top:8px;color:rgba(255,255,255,.72);font-size:13px}
    .trust-list{
      display:grid;
      gap:14px;
    }
    .trust-item{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .trust-item i{
      flex:0 0 34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      font-style:normal;
      color:var(--success);
      background:rgba(20,184,122,.1);
      font-weight:900;
    }
    .trust-item h3{font-size:18px;margin-bottom:4px}
    .trust-item p{color:var(--text-soft);font-size:15px}

    .category-entry{
      padding:34px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(255,255,255,.78)),
        url('/assets/images/coverpic/cover-4.webp') center/cover no-repeat;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:center;
    }
    .category-entry h2{
      font-size:36px;
      line-height:1.2;
      letter-spacing:-.03em;
      margin-bottom:12px;
    }
    .category-entry p{
      color:var(--text-soft);
      margin-bottom:22px;
    }
    .category-points{
      display:grid;
      gap:10px;
    }
    .category-points li{
      list-style:none;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.76);
      border:1px solid rgba(223,229,239,.8);
      color:var(--text-soft);
      font-weight:700;
    }

    .faq{
      background:var(--surface);
    }
    .faq-list{
      display:grid;
      gap:14px;
      max-width:880px;
      margin:0 auto;
    }
    .faq-item{
      border-radius:20px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:20px 22px;
      text-align:left;
      color:var(--text);
      background:#fff;
      font-weight:900;
    }
    .faq-q span:last-child{
      flex:0 0 30px;
      height:30px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:var(--primary-dark);
      background:var(--primary-soft);
      transition:var(--ease);
    }
    .faq-a{
      display:none;
      padding:0 22px 22px;
      color:var(--text-soft);
      font-size:15px;
    }
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}

    .cta{
      padding:0 0 92px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      padding:52px;
      border-radius:32px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(17,24,39,.94),rgba(109,62,230,.84),rgba(255,107,138,.72)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-box::after{
      content:"";
      position:absolute;
      width:320px;
      height:320px;
      right:-80px;
      bottom:-120px;
      border-radius:50%;
      background:rgba(255,255,255,.18);
      filter:blur(4px);
    }
    .cta-content{
      position:relative;
      z-index:2;
      max-width:780px;
    }
    .cta h2{
      font-size:clamp(30px,4vw,48px);
      line-height:1.18;
      letter-spacing:-.035em;
      margin-bottom:14px;
    }
    .cta p{
      color:rgba(255,255,255,.82);
      margin-bottom:28px;
      font-size:17px;
    }
    .contact-form{
      margin-top:24px;
      display:grid;
      grid-template-columns:1fr 1fr auto;
      gap:12px;
      max-width:920px;
    }
    .contact-form input{
      min-height:50px;
      border-radius:999px;
      padding:0 18px;
      border:1px solid rgba(255,255,255,.22);
      background:rgba(255,255,255,.12);
      color:#fff;
      outline:none;
    }
    .contact-form input::placeholder{color:rgba(255,255,255,.64)}
    .contact-form button{min-height:50px}

    .site-footer{
      background:#080c19;
      color:#fff;
      padding:56px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand .logo{color:#fff;margin-bottom:16px}
    .footer-brand p{
      color:rgba(255,255,255,.66);
      max-width:520px;
      font-size:14px;
    }
    .footer-col h3{
      font-size:15px;
      margin-bottom:14px;
    }
    .footer-col a,
    .footer-col span{
      display:block;
      color:rgba(255,255,255,.64);
      font-size:14px;
      padding:6px 0;
      transition:var(--ease);
    }
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .copyright{
      padding-top:24px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }

    @media (max-width:1024px){
      .hero-inner,.grid-2,.proof-wrap,.category-entry{
        grid-template-columns:1fr;
      }
      .hero{min-height:auto}
      .hero-inner{padding:92px 0 74px}
      .grid-3{grid-template-columns:repeat(2,1fr)}
      .process{grid-template-columns:repeat(2,1fr)}
      .contact-form{grid-template-columns:1fr 1fr}
      .contact-form button{grid-column:1/-1}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav{height:68px}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:#fff;
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{justify-content:flex-start}
      .menu-toggle{display:grid;place-items:center}
      .nav-action .btn{display:none}
      .hero-inner{padding:76px 0 56px}
      .hero h1{font-size:42px}
      .hero-subtitle{font-size:16px}
      .section{padding:68px 0}
      .section-sm{padding:58px 0}
      .grid-3,.post-grid,.metrics,.footer-grid{
        grid-template-columns:1fr;
      }
      .status-row{grid-template-columns:1fr}
      .dash-cover{height:200px}
      .image-panel,.image-panel img{min-height:380px}
      .category-entry,.cta-box{padding:28px}
      .footer-grid{gap:22px}
      .copyright{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      .logo-text span{display:none}
      .hero-actions{align-items:stretch;flex-direction:column}
      .btn{width:100%}
      .process{grid-template-columns:1fr}
      .post-card{flex-direction:column}
      .post-date{
        flex:auto;
        min-height:auto;
        width:max-content;
      }
      .contact-form{grid-template-columns:1fr}
      .cta-box{border-radius:24px}
      .section-title,.category-entry h2{font-size:30px}
    }

/* roulang page: article */
:root{
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --secondary:#06b6d4;
      --accent:#f97316;
      --ink:#12111f;
      --text:#302f3d;
      --muted:#686779;
      --light:#f7f7fb;
      --white:#ffffff;
      --line:#e7e5ef;
      --line-strong:#d8d3e6;
      --danger:#ef4444;
      --success:#10b981;
      --radius-xs:10px;
      --radius-sm:14px;
      --radius-md:20px;
      --radius-lg:28px;
      --shadow-sm:0 10px 30px rgba(31,27,54,.08);
      --shadow-md:0 18px 55px rgba(31,27,54,.12);
      --shadow-lg:0 26px 80px rgba(31,27,54,.18);
      --container:1160px;
      --header-h:78px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 5%,rgba(124,58,237,.13),transparent 32%),
        radial-gradient(circle at 92% 0%,rgba(6,182,212,.12),transparent 28%),
        linear-gradient(180deg,#fbfbff 0%,#f7f7fb 45%,#ffffff 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{border:0;background:none;cursor:pointer}
    ::selection{background:rgba(124,58,237,.18);color:var(--primary-dark)}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      height:var(--header-h);
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(231,229,239,.78);
    }
    .nav{
      height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      transition:var(--ease);
    }
    .logo:hover{transform:translateY(-1px)}
    .logo-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      letter-spacing:.02em;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 30px rgba(124,58,237,.28);
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.16}
    .logo-text strong{font-size:17px;color:var(--ink);font-weight:900}
    .logo-text span{font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:8px;
      border:1px solid rgba(231,229,239,.9);
      border-radius:999px;
      background:rgba(255,255,255,.68);
      box-shadow:0 8px 22px rgba(31,27,54,.04);
    }
    .nav-links a{
      position:relative;
      padding:10px 16px;
      border-radius:999px;
      color:#514f62;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 10px 24px rgba(124,58,237,.24);
    }
    .nav-action{display:flex;align-items:center;gap:12px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:800;
      font-size:14px;
      transition:var(--ease);
      border:1px solid transparent;
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus-visible,.nav-links a:focus-visible,.logo:focus-visible,.menu-toggle:focus-visible{
      outline:3px solid rgba(124,58,237,.24);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 12px 30px rgba(124,58,237,.25);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(124,58,237,.34)}
    .btn-secondary{
      color:var(--primary-dark);
      background:#fff;
      border-color:rgba(124,58,237,.22);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(124,58,237,.42);box-shadow:var(--shadow-md)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      color:var(--ink);
      background:var(--light);
      border:1px solid var(--line);
      font-size:20px;
      transition:var(--ease);
    }
    .menu-toggle:hover{background:var(--primary-soft);color:var(--primary-dark)}
    main{overflow:hidden}
    .article-hero{
      position:relative;
      padding:72px 0 46px;
      isolation:isolate;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-2;
      background:
        linear-gradient(90deg,rgba(18,17,31,.82),rgba(18,17,31,.58)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      inset:auto 0 -1px;
      height:90px;
      z-index:-1;
      background:linear-gradient(180deg,transparent,#f7f7fb);
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:rgba(255,255,255,.82);
      font-size:14px;
      margin-bottom:24px;
    }
    .crumbs a{transition:var(--ease);font-weight:700}
    .crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
    .crumbs span{color:rgba(255,255,255,.62)}
    .hero-card{
      max-width:900px;
      padding:34px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.09);
      backdrop-filter:blur(18px);
      box-shadow:0 28px 90px rgba(0,0,0,.22);
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#fff;
      font-size:13px;
      font-weight:800;
      background:rgba(124,58,237,.58);
      border:1px solid rgba(255,255,255,.2);
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--secondary);
      box-shadow:0 0 0 6px rgba(6,182,212,.18);
    }
    h1{
      color:#fff;
      font-size:clamp(32px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:950;
      max-width:840px;
      margin-bottom:18px;
    }
    .hero-desc{
      color:rgba(255,255,255,.84);
      font-size:18px;
      max-width:800px;
      line-height:1.85;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 13px;
      border-radius:999px;
      color:rgba(255,255,255,.88);
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      font-size:13px;
      font-weight:700;
    }
    .section{padding:74px 0}
    .section-tight{padding:56px 0}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .article-panel,.side-card,.info-card,.faq-item,.cta-panel{
      border:1px solid var(--line);
      background:rgba(255,255,255,.86);
      box-shadow:var(--shadow-sm);
    }
    .article-panel{
      border-radius:var(--radius-lg);
      padding:42px;
      overflow:hidden;
    }
    .article-cover{
      margin:-10px -10px 32px;
      border-radius:24px;
      overflow:hidden;
      position:relative;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .article-cover img{
      width:100%;
      aspect-ratio:16/7;
      object-fit:cover;
    }
    .article-cover::after{
      content:"操逼视频软件 · 内容运营说明";
      position:absolute;
      left:18px;
      bottom:18px;
      padding:8px 12px;
      border-radius:999px;
      color:#fff;
      background:rgba(18,17,31,.62);
      backdrop-filter:blur(12px);
      font-size:13px;
      font-weight:800;
    }
    .article-content{
      color:#302f3d;
      font-size:17px;
      line-height:1.95;
    }
    .article-content h2,.article-content h3,.article-content h4{
      color:var(--ink);
      line-height:1.28;
      letter-spacing:-.02em;
      margin:34px 0 14px;
      font-weight:950;
    }
    .article-content h2{
      font-size:28px;
      padding-left:14px;
      border-left:5px solid var(--primary);
    }
    .article-content h3{font-size:23px}
    .article-content h4{font-size:19px}
    .article-content p{margin:16px 0}
    .article-content a{
      color:var(--primary-dark);
      font-weight:800;
      border-bottom:1px solid rgba(124,58,237,.28);
      transition:var(--ease);
    }
    .article-content a:hover{color:var(--primary);border-bottom-color:var(--primary)}
    .article-content ul,.article-content ol{
      margin:18px 0 18px 22px;
      padding-left:12px;
    }
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:26px 0;
      padding:20px 22px;
      border-radius:18px;
      background:linear-gradient(135deg,rgba(124,58,237,.08),rgba(6,182,212,.08));
      border:1px solid rgba(124,58,237,.16);
      color:#454257;
      font-weight:700;
    }
    .article-content img{
      border-radius:20px;
      margin:26px 0;
      box-shadow:var(--shadow-sm);
      border:1px solid var(--line);
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:26px 0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:18px;
      font-size:15px;
    }
    .article-content th,.article-content td{
      padding:14px 16px;
      border-bottom:1px solid var(--line);
      text-align:left;
    }
    .article-content th{
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
    }
    .article-content tr:last-child td{border-bottom:0}
    .not-found{
      text-align:center;
      padding:54px 22px;
      border-radius:24px;
      background:linear-gradient(135deg,rgba(124,58,237,.08),rgba(6,182,212,.08));
      border:1px dashed rgba(124,58,237,.32);
    }
    .not-found h2{
      color:var(--ink);
      font-size:30px;
      margin-bottom:12px;
    }
    .not-found p{color:var(--muted);margin-bottom:22px}
    .sidebar{
      position:sticky;
      top:104px;
      display:grid;
      gap:18px;
    }
    .side-card{
      border-radius:var(--radius-md);
      padding:22px;
    }
    .side-card h2,.side-card h3{
      color:var(--ink);
      font-size:20px;
      line-height:1.3;
      margin-bottom:12px;
      font-weight:950;
    }
    .side-card p{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      margin-bottom:14px;
    }
    .side-list{display:grid;gap:12px;list-style:none}
    .side-list li{
      display:flex;
      gap:10px;
      color:#454257;
      font-size:14px;
      line-height:1.6;
    }
    .side-list li::before{
      content:"";
      flex:0 0 9px;
      width:9px;
      height:9px;
      margin-top:8px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 0 0 5px rgba(124,58,237,.1);
    }
    .side-media{
      border-radius:20px;
      overflow:hidden;
      margin-bottom:16px;
      border:1px solid var(--line);
    }
    .side-media img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-top:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      color:var(--primary-dark);
      background:var(--primary-soft);
      font-size:12px;
      font-weight:800;
      border:1px solid rgba(124,58,237,.12);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary-dark);
      font-size:13px;
      font-weight:950;
      letter-spacing:.02em;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:24px;
      height:3px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--secondary));
    }
    .section-title{
      color:var(--ink);
      font-size:clamp(26px,3.6vw,42px);
      line-height:1.18;
      letter-spacing:-.035em;
      font-weight:950;
      max-width:720px;
    }
    .section-note{
      max-width:430px;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
    }
    .info-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .info-card{
      border-radius:var(--radius-md);
      padding:24px;
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .info-card::after{
      content:"";
      position:absolute;
      width:110px;
      height:110px;
      border-radius:50%;
      right:-48px;
      top:-48px;
      background:rgba(124,58,237,.08);
      transition:var(--ease);
    }
    .info-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.22);
    }
    .info-card:hover::after{transform:scale(1.2);background:rgba(6,182,212,.1)}
    .icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 26px rgba(124,58,237,.22);
      font-weight:950;
      margin-bottom:16px;
    }
    .info-card h3{
      color:var(--ink);
      font-size:19px;
      line-height:1.35;
      margin-bottom:10px;
      font-weight:950;
    }
    .info-card p{color:var(--muted);font-size:15px;line-height:1.75}
    .faq-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:start;
    }
    .faq-image{
      position:relative;
      border-radius:var(--radius-lg);
      overflow:hidden;
      min-height:420px;
      box-shadow:var(--shadow-md);
      border:1px solid var(--line);
      background:url("/assets/images/coverpic/cover-5.webp") center/cover no-repeat;
    }
    .faq-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(18,17,31,.05),rgba(18,17,31,.72));
    }
    .faq-caption{
      position:absolute;
      z-index:1;
      left:24px;
      right:24px;
      bottom:24px;
      color:#fff;
    }
    .faq-caption strong{
      display:block;
      font-size:24px;
      line-height:1.25;
      margin-bottom:8px;
      font-weight:950;
    }
    .faq-caption span{
      color:rgba(255,255,255,.82);
      font-size:14px;
      line-height:1.7;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border-radius:20px;
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      color:var(--ink);
      font-weight:950;
      text-align:left;
      background:#fff;
    }
    .faq-question span:last-child{
      flex:0 0 28px;
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:var(--primary-dark);
      background:var(--primary-soft);
      transition:var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
      background:#fff;
    }
    .faq-item.open{
      border-color:rgba(124,58,237,.24);
      box-shadow:var(--shadow-md);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--primary);color:#fff}
    .cta-section{padding:62px 0 84px}
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      padding:42px;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:center;
      background:
        linear-gradient(135deg,rgba(124,58,237,.96),rgba(6,182,212,.86)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color:#fff;
      box-shadow:var(--shadow-lg);
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      border-radius:50%;
      right:-70px;
      top:-90px;
      background:rgba(255,255,255,.16);
    }
    .cta-panel h2{
      font-size:clamp(28px,4vw,44px);
      line-height:1.16;
      letter-spacing:-.035em;
      font-weight:950;
      margin-bottom:14px;
      position:relative;
      z-index:1;
    }
    .cta-panel p{
      color:rgba(255,255,255,.86);
      font-size:16px;
      line-height:1.85;
      max-width:720px;
      position:relative;
      z-index:1;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .cta-actions .btn-secondary{
      background:rgba(255,255,255,.94);
      color:var(--primary-dark);
      border-color:rgba(255,255,255,.4);
    }
    .site-footer{
      background:#12111f;
      color:rgba(255,255,255,.78);
      padding:56px 0 28px;
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 0%,rgba(124,58,237,.22),transparent 30%),
        radial-gradient(circle at 90% 20%,rgba(6,182,212,.16),transparent 26%);
      pointer-events:none;
    }
    .footer-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.4fr .7fr 1fr;
      gap:38px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand .logo{margin-bottom:18px}
    .site-footer .logo-text strong{color:#fff}
    .site-footer .logo-text span{color:rgba(255,255,255,.58)}
    .footer-brand p{
      max-width:520px;
      color:rgba(255,255,255,.68);
      font-size:14px;
      line-height:1.85;
    }
    .footer-col{
      display:flex;
      flex-direction:column;
      gap:10px;
      font-size:14px;
    }
    .footer-col h3{
      color:#fff;
      font-size:16px;
      margin-bottom:6px;
      font-weight:950;
    }
    .footer-col a,.footer-col span{
      color:rgba(255,255,255,.66);
      transition:var(--ease);
    }
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .copyright{
      position:relative;
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:rgba(255,255,255,.52);
      font-size:13px;
      line-height:1.7;
    }
    @media (max-width:1024px){
      .article-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .info-grid{grid-template-columns:repeat(2,1fr)}
      .faq-wrap{grid-template-columns:1fr}
      .faq-image{min-height:330px}
      .cta-panel{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:768px){
      :root{--header-h:72px}
      .container{width:min(100% - 28px,var(--container))}
      .menu-toggle{display:grid;place-items:center}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--header-h) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:rgba(255,255,255,.96);
        box-shadow:var(--shadow-lg);
      }
      .nav-links.open{display:flex}
      .nav-links a{text-align:center}
      .nav-action .btn-primary{display:none}
      .article-hero{padding:46px 0 34px}
      .hero-card{padding:24px;border-radius:24px}
      .hero-desc{font-size:16px}
      .article-panel{padding:24px;border-radius:24px}
      .article-cover{margin:0 0 26px}
      .article-cover img{aspect-ratio:16/10}
      .article-content{font-size:16px}
      .article-content h2{font-size:24px}
      .sidebar{grid-template-columns:1fr}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-note{margin-top:12px}
      .info-grid{grid-template-columns:1fr}
      .cta-panel{padding:28px;border-radius:24px}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .logo-text span{display:none}
      .logo-mark{width:40px;height:40px;border-radius:14px}
      .article-meta{gap:8px}
      .meta-pill{font-size:12px;padding:8px 10px}
      .crumbs{font-size:13px}
      .hero-card{padding:20px}
      .article-panel{padding:18px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .faq-question{padding:16px}
      .faq-answer{padding:0 16px 16px}
      .cta-actions{flex-direction:column}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --bg:#f7f3ee;
      --bg-soft:#fffaf4;
      --bg-deep:#17110d;
      --card:#ffffff;
      --text:#241b16;
      --muted:#6f6259;
      --muted-2:#95877d;
      --primary:#a4472d;
      --primary-dark:#7e311e;
      --primary-soft:#fff0e8;
      --accent:#d9a35f;
      --accent-soft:#fff5df;
      --green:#476b4b;
      --border:rgba(36,27,22,.12);
      --border-strong:rgba(36,27,22,.22);
      --shadow:0 22px 60px rgba(64,38,24,.12);
      --shadow-soft:0 12px 32px rgba(64,38,24,.08);
      --radius-lg:28px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1180px;
      --ease:cubic-bezier(.2,.75,.25,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 0%, rgba(217,163,95,.22), transparent 36%),
        radial-gradient(circle at 92% 14%, rgba(164,71,45,.14), transparent 34%),
        var(--bg);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:none;cursor:pointer}
    ::selection{background:rgba(164,71,45,.22)}
    :focus-visible{outline:3px solid rgba(217,163,95,.65);outline-offset:4px;border-radius:10px}

    .container{width:min(var(--container), calc(100% - 40px));margin:0 auto}
    .section{padding:92px 0}
    .section-tight{padding:68px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(164,71,45,.18);
      border-radius:999px;
      background:rgba(255,250,244,.72);
      color:var(--primary-dark);
      font-size:14px;
      font-weight:700;
      letter-spacing:.03em;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(217,163,95,.16);
    }
    .section-head{
      max-width:780px;
      margin-bottom:36px;
    }
    .section-head.center{text-align:center;margin-left:auto;margin-right:auto}
    .section-head h2{
      margin-top:16px;
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.04em;
      color:var(--text);
    }
    .section-head p{
      margin-top:16px;
      color:var(--muted);
      font-size:17px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,243,238,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(36,27,22,.08);
    }
    .nav{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .logo-mark{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),#402016);
      box-shadow:0 14px 30px rgba(164,71,45,.28);
    }
    .logo-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .logo-text strong{
      font-size:18px;
      letter-spacing:-.02em;
      color:var(--text);
    }
    .logo-text span{
      margin-top:4px;
      color:var(--muted);
      font-size:12px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-links a{
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      font-size:15px;
      transition:background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
    }
    .nav-links a:hover{
      color:var(--primary-dark);
      background:rgba(164,71,45,.08);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:var(--primary-dark);
      background:var(--primary-soft);
      box-shadow:inset 0 0 0 1px rgba(164,71,45,.12);
    }
    .nav-action{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 14px 28px rgba(164,71,45,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(164,71,45,.32)}
    .btn-secondary{
      color:var(--primary-dark);
      background:#fff;
      border:1px solid rgba(164,71,45,.16);
      box-shadow:var(--shadow-soft);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(164,71,45,.28)}
    .btn-ghost{
      color:var(--text);
      border:1px solid var(--border);
      background:rgba(255,255,255,.55);
    }
    .btn-ghost:hover{background:#fff;transform:translateY(-2px)}
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:16px;
      background:#fff;
      color:var(--text);
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
      font-size:22px;
    }

    .category-hero{
      position:relative;
      min-height:620px;
      display:flex;
      align-items:center;
      overflow:hidden;
      background:
        linear-gradient(90deg, rgba(23,17,13,.94) 0%, rgba(23,17,13,.78) 48%, rgba(23,17,13,.36) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;
    }
    .category-hero::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:180px;
      background:linear-gradient(0deg,var(--bg),transparent);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:minmax(0,1fr) 390px;
      gap:44px;
      align-items:end;
      padding:94px 0 120px;
    }
    .hero-copy{max-width:760px}
    .hero-copy .eyebrow{
      background:rgba(255,255,255,.12);
      color:#ffe2bf;
      border-color:rgba(255,255,255,.18);
      backdrop-filter:blur(12px);
    }
    h1{
      margin-top:24px;
      font-size:clamp(42px,6.6vw,76px);
      line-height:1.02;
      letter-spacing:-.065em;
      max-width:830px;
    }
    .hero-copy p{
      margin-top:24px;
      color:rgba(255,255,255,.82);
      font-size:18px;
      max-width:680px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .hero-note{
      margin-top:22px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .hero-note span{
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.16);
      color:rgba(255,255,255,.82);
      font-size:13px;
    }
    .hero-panel{
      background:rgba(255,250,244,.92);
      color:var(--text);
      border:1px solid rgba(255,255,255,.45);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:0 28px 80px rgba(0,0,0,.24);
      backdrop-filter:blur(18px);
    }
    .panel-title{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding-bottom:18px;
      border-bottom:1px solid var(--border);
    }
    .panel-title strong{font-size:18px}
    .status-pill{
      color:var(--green);
      background:rgba(71,107,75,.1);
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
    }
    .control-list{
      display:grid;
      gap:14px;
      margin-top:20px;
    }
    .control-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      align-items:start;
      padding:14px;
      border:1px solid rgba(36,27,22,.08);
      border-radius:18px;
      background:#fff;
    }
    .control-icon{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:var(--accent-soft);
      color:var(--primary-dark);
      font-weight:900;
    }
    .control-item h3{font-size:15px;line-height:1.25}
    .control-item p{margin-top:4px;color:var(--muted);font-size:13px;line-height:1.55}

    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
    .card{
      background:rgba(255,255,255,.82);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
    }
    .card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow);
      border-color:rgba(164,71,45,.22);
    }
    .feature-card{
      padding:26px;
      min-height:250px;
    }
    .card-icon{
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:linear-gradient(135deg,var(--primary-soft),#fff);
      color:var(--primary-dark);
      font-size:24px;
      font-weight:900;
      border:1px solid rgba(164,71,45,.12);
    }
    .feature-card h3{
      margin-top:22px;
      font-size:21px;
      line-height:1.3;
      letter-spacing:-.02em;
    }
    .feature-card p{
      margin-top:12px;
      color:var(--muted);
      font-size:15px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      color:var(--primary-dark);
      background:var(--primary-soft);
      border:1px solid rgba(164,71,45,.12);
    }

    .image-split{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:34px;
      align-items:center;
    }
    .media-card{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      min-height:460px;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.65);
      background:var(--bg-deep);
    }
    .media-card img{
      width:100%;
      height:100%;
      min-height:460px;
      object-fit:cover;
      opacity:.78;
    }
    .media-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      padding:22px;
      color:#fff;
      border-radius:22px;
      background:rgba(23,17,13,.72);
      backdrop-filter:blur(16px);
      border:1px solid rgba(255,255,255,.16);
    }
    .media-caption strong{display:block;font-size:22px;line-height:1.3}
    .media-caption span{display:block;margin-top:8px;color:rgba(255,255,255,.74)}
    .check-list{
      display:grid;
      gap:14px;
      margin-top:24px;
    }
    .check-list li{
      list-style:none;
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 8px 22px rgba(64,38,24,.05);
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 26px;
      width:26px;
      height:26px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#fff;
      background:var(--green);
      font-weight:900;
      margin-top:2px;
    }
    .check-list strong{display:block;color:var(--text)}
    .check-list span{display:block;color:var(--muted);font-size:14px;margin-top:3px}

    .process{
      position:relative;
      background:linear-gradient(180deg,rgba(255,250,244,.72),rgba(255,255,255,.56));
      border-top:1px solid rgba(36,27,22,.08);
      border-bottom:1px solid rgba(36,27,22,.08);
    }
    .step-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      counter-reset:step;
    }
    .step-card{
      position:relative;
      padding:24px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      counter-increment:step;
    }
    .step-card::before{
      content:"0" counter(step);
      display:inline-flex;
      width:46px;
      height:46px;
      align-items:center;
      justify-content:center;
      border-radius:16px;
      background:var(--bg-deep);
      color:#ffe1ba;
      font-weight:900;
      margin-bottom:22px;
    }
    .step-card h3{font-size:19px;line-height:1.28}
    .step-card p{margin-top:10px;color:var(--muted);font-size:14px}

    .scenario-card{
      display:flex;
      gap:18px;
      padding:22px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
    }
    .scenario-card:hover{border-color:rgba(164,71,45,.22)}
    .scenario-num{
      flex:0 0 48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:17px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
    }
    .scenario-card h3{font-size:20px}
    .scenario-card p{margin-top:8px;color:var(--muted);font-size:15px}

    .security-band{
      background:var(--bg-deep);
      color:#fff;
      border-radius:36px;
      padding:38px;
      overflow:hidden;
      position:relative;
      box-shadow:0 30px 80px rgba(23,17,13,.22);
    }
    .security-band::before{
      content:"";
      position:absolute;
      inset:-80px -120px auto auto;
      width:360px;
      height:360px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(217,163,95,.26), transparent 64%);
    }
    .security-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:34px;
      align-items:center;
    }
    .security-band h2{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.04em;
    }
    .security-band p{margin-top:16px;color:rgba(255,255,255,.72)}
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .metric{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(10px);
    }
    .metric strong{
      display:block;
      color:#ffe1ba;
      font-size:30px;
      line-height:1;
    }
    .metric span{
      display:block;
      margin-top:10px;
      color:rgba(255,255,255,.72);
      font-size:14px;
    }

    .faq-list{
      display:grid;
      gap:14px;
      max-width:900px;
      margin:0 auto;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      overflow:hidden;
      box-shadow:0 10px 28px rgba(64,38,24,.06);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:20px 22px;
      background:#fff;
      color:var(--text);
      text-align:left;
      font-weight:900;
      font-size:17px;
    }
    .faq-question span:last-child{
      flex:0 0 32px;
      width:32px;
      height:32px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary-dark);
      transition:transform .25s var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-question:hover{background:var(--bg-soft)}

    .cta{
      padding:74px 0 96px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:38px;
      padding:54px;
      background:
        linear-gradient(135deg,rgba(164,71,45,.94),rgba(64,32,22,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
      box-shadow:0 30px 90px rgba(164,71,45,.24);
    }
    .cta-box::after{
      content:"";
      position:absolute;
      right:-90px;
      bottom:-130px;
      width:320px;
      height:320px;
      border-radius:50%;
      background:rgba(217,163,95,.26);
      filter:blur(4px);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1fr auto;
      gap:30px;
      align-items:center;
    }
    .cta h2{
      font-size:clamp(30px,4.6vw,48px);
      line-height:1.12;
      letter-spacing:-.04em;
      max-width:760px;
    }
    .cta p{
      margin-top:16px;
      max-width:720px;
      color:rgba(255,255,255,.78);
    }
    .contact-form{
      min-width:330px;
      padding:18px;
      border-radius:26px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      backdrop-filter:blur(14px);
    }
    .contact-form label{
      display:block;
      color:rgba(255,255,255,.82);
      font-size:13px;
      font-weight:800;
      margin:0 0 8px 4px;
    }
    .contact-form input{
      width:100%;
      height:48px;
      margin-bottom:12px;
      padding:0 14px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.22);
      background:rgba(255,255,255,.9);
      color:var(--text);
    }
    .contact-form input::placeholder{color:#9d8f84}
    .contact-form .btn{
      width:100%;
      background:#fff;
      color:var(--primary-dark);
      box-shadow:none;
    }
    .contact-form .btn:hover{transform:translateY(-2px);background:#fff6ea}

    .site-footer{
      background:#120d0a;
      color:#fff;
      padding:58px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .7fr 1fr;
      gap:38px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand p{
      margin-top:18px;
      max-width:480px;
      color:rgba(255,255,255,.62);
      font-size:14px;
    }
    .site-footer .logo-text strong{color:#fff}
    .site-footer .logo-text span{color:rgba(255,255,255,.58)}
    .footer-col{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-col h3{
      font-size:16px;
      margin-bottom:8px;
      color:#ffe1ba;
    }
    .footer-col a,
    .footer-col span{
      color:rgba(255,255,255,.62);
      font-size:14px;
      transition:color .25s var(--ease), transform .25s var(--ease);
    }
    .footer-col a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:rgba(255,255,255,.48);
      font-size:13px;
    }

    @media (max-width:1024px){
      .hero-inner{grid-template-columns:1fr;align-items:start}
      .hero-panel{max-width:620px}
      .grid-3{grid-template-columns:repeat(2,1fr)}
      .image-split,.security-grid,.cta-content{grid-template-columns:1fr}
      .step-grid{grid-template-columns:repeat(2,1fr)}
      .contact-form{min-width:0;max-width:520px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:70px 0}
      .nav{min-height:70px}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        background:rgba(255,250,244,.96);
        border:1px solid var(--border);
        border-radius:22px;
        box-shadow:var(--shadow);
      }
      .nav-links.show{display:flex}
      .nav-links a{text-align:center}
      .menu-toggle{display:grid;place-items:center}
      .nav-action .btn-primary{display:none}
      .category-hero{min-height:auto}
      .hero-inner{padding:76px 0 104px}
      h1{font-size:clamp(38px,12vw,58px)}
      .grid-3,.grid-2,.step-grid,.metric-grid{grid-template-columns:1fr}
      .media-card,.media-card img{min-height:360px}
      .security-band{padding:28px;border-radius:28px}
      .cta-box{padding:34px 24px;border-radius:30px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      body{line-height:1.68}
      .logo-mark{width:40px;height:40px;border-radius:14px}
      .logo-text strong{font-size:16px}
      .logo-text span{font-size:11px}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .hero-panel{padding:18px;border-radius:24px}
      .control-item{grid-template-columns:1fr}
      .section-head h2{font-size:30px}
      .scenario-card{flex-direction:column}
      .faq-question{font-size:16px;padding:18px}
      .faq-answer{padding:0 18px 18px}
    }