/* roulang page: index */
:root{
      --primary:#102c24;
      --primary-2:#173d33;
      --primary-soft:#e8f0ed;
      --accent:#b8783b;
      --accent-2:#d69a58;
      --accent-soft:#fbf0e4;
      --bg:#fbfaf6;
      --bg-2:#f1f3ef;
      --surface:#ffffff;
      --surface-dark:#0f261f;
      --text:#1d2521;
      --muted:#68746f;
      --muted-2:#8a948f;
      --border:#dfe5df;
      --border-dark:rgba(255,255,255,.16);
      --shadow:0 18px 45px rgba(15,38,31,.10);
      --shadow-soft:0 10px 28px rgba(15,38,31,.08);
      --radius-lg:22px;
      --radius:18px;
      --radius-sm:12px;
      --container:1240px;
      --header-h:78px;
      --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:
        radial-gradient(circle at 8% 4%, rgba(184,120,59,.08), transparent 28%),
        linear-gradient(180deg,#fffdf8 0%,var(--bg) 42%,#f7f7f2 100%);
      line-height:1.78;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:none;background:none;cursor:pointer}
    ::selection{background:rgba(184,120,59,.24)}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:86px 0}
    .section.tight{padding:62px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#8c5728;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(184,120,59,.14);
    }
    .section-head{
      max-width:790px;
      margin-bottom:34px;
    }
    .section-head.center{
      text-align:center;
      margin-left:auto;
      margin-right:auto;
    }
    .section-title{
      font-size:clamp(28px,3vw,36px);
      line-height:1.25;
      letter-spacing:-.02em;
      color:var(--text);
      margin-bottom:12px;
    }
    .section-desc{
      color:var(--muted);
      font-size:16px;
      max-width:720px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:700;
      line-height:1;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 26px rgba(16,44,36,.22);
    }
    .btn-primary:hover{
      transform:translateY(-3px);
      box-shadow:0 16px 36px rgba(16,44,36,.28);
      filter:brightness(1.05);
    }
    .btn-secondary{
      color:var(--primary);
      background:rgba(255,255,255,.82);
      border-color:rgba(16,44,36,.18);
    }
    .btn-secondary:hover{
      transform:translateY(-3px);
      border-color:rgba(184,120,59,.45);
      box-shadow:var(--shadow-soft);
      color:#8c5728;
    }
    .btn-ghost{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:rgba(16,44,36,.08);
    }
    .btn-ghost:hover{
      transform:translateY(-2px);
      background:#dfeae6;
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .footer a:focus-visible,
    .faq-question:focus-visible,
    .mobile-toggle:focus-visible{
      outline:3px solid rgba(184,120,59,.34);
      outline-offset:3px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(251,250,246,.86);
      border-bottom:1px solid rgba(223,229,223,.82);
      transition:var(--ease);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      color:var(--primary);
      letter-spacing:.01em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:
        radial-gradient(circle at 68% 30%, rgba(214,154,88,.9), transparent 28%),
        linear-gradient(135deg,#0f2b24,#1a473b);
      position:relative;
      box-shadow:0 12px 24px rgba(16,44,36,.18);
      overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:9px;
      border:1px solid rgba(255,255,255,.46);
      border-radius:50%;
      transform:rotate(-22deg);
    }
    .brand-mark::after{
      inset:15px -4px;
      border-color:rgba(214,154,88,.76);
      transform:rotate(28deg);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{font-size:19px}
    .brand-text span{
      font-size:12px;
      color:var(--muted);
      font-weight:700;
      margin-top:3px;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid rgba(16,44,36,.08);
      background:rgba(255,255,255,.62);
      border-radius:999px;
    }
    .nav-link{
      padding:10px 15px;
      border-radius:999px;
      color:#40504a;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .nav-link:hover{
      color:var(--primary);
      background:var(--primary-soft);
    }
    .nav-link.active{
      background:var(--primary);
      color:#fff;
      box-shadow:0 8px 20px rgba(16,44,36,.16);
    }
    .header-actions{display:flex;align-items:center;gap:12px}
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:#fff;
      color:var(--primary);
      align-items:center;
      justify-content:center;
    }
    .mobile-toggle span,
    .mobile-toggle span::before,
    .mobile-toggle span::after{
      content:"";
      display:block;
      width:20px;
      height:2px;
      background:currentColor;
      border-radius:3px;
      transition:var(--ease);
      position:relative;
    }
    .mobile-toggle span::before{position:absolute;top:-7px}
    .mobile-toggle span::after{position:absolute;top:7px}

    .hero{
      position:relative;
      min-height:690px;
      display:flex;
      align-items:center;
      color:#fff;
      overflow:hidden;
      background-image:
        linear-gradient(90deg,rgba(12,31,26,.92) 0%,rgba(12,31,26,.78) 42%,rgba(12,31,26,.30) 100%),
        url('/assets/images/backpic/back-1.webp');
      background-size:cover;
      background-position:center;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg,rgba(184,120,59,.18),transparent 38%),
        radial-gradient(circle at 74% 20%,rgba(255,255,255,.16),transparent 22%);
      pointer-events:none;
    }
    .hero::after{
      content:"";
      position:absolute;
      right:-170px;
      bottom:-220px;
      width:520px;
      height:520px;
      border:1px solid rgba(255,255,255,.20);
      border-radius:50%;
      box-shadow:0 0 0 34px rgba(255,255,255,.04),0 0 0 76px rgba(255,255,255,.025);
    }
    .hero-grid{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(360px,.82fr);
      gap:56px;
      align-items:center;
      padding:74px 0 64px;
    }
    .hero-copy{max-width:720px}
    .hero-kicker{
      display:inline-flex;
      gap:10px;
      align-items:center;
      padding:8px 13px;
      border:1px solid rgba(255,255,255,.22);
      background:rgba(255,255,255,.10);
      border-radius:999px;
      color:rgba(255,255,255,.92);
      font-size:13px;
      font-weight:700;
      margin-bottom:20px;
    }
    .hero-kicker i{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent-2);
      box-shadow:0 0 0 5px rgba(214,154,88,.18);
    }
    .hero h1{
      font-size:clamp(40px,5vw,58px);
      line-height:1.14;
      letter-spacing:-.035em;
      margin-bottom:22px;
    }
    .hero-lead{
      font-size:18px;
      color:rgba(255,255,255,.82);
      max-width:680px;
      margin-bottom:30px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:34px;
    }
    .hero-actions .btn-secondary{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.28);
    }
    .hero-actions .btn-secondary:hover{
      background:rgba(255,255,255,.18);
      color:#fff;
    }
    .hero-notes{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      max-width:700px;
    }
    .hero-note{
      padding:15px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.09);
    }
    .hero-note strong{
      display:block;
      font-size:15px;
      color:#fff;
      margin-bottom:4px;
    }
    .hero-note span{
      display:block;
      color:rgba(255,255,255,.70);
      font-size:13px;
      line-height:1.55;
    }
    .hero-visual{
      display:grid;
      gap:16px;
    }
    .visual-card{
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.12);
      border-radius:var(--radius-lg);
      box-shadow:0 20px 55px rgba(0,0,0,.22);
      overflow:hidden;
    }
    .visual-main{
      position:relative;
      min-height:310px;
    }
    .visual-main img{
      width:100%;
      height:310px;
      object-fit:cover;
      filter:saturate(.92) contrast(1.03);
    }
    .visual-main::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 30%,rgba(9,28,23,.72) 100%);
    }
    .visual-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:22px;
      z-index:2;
    }
    .visual-caption strong{
      display:block;
      font-size:22px;
      margin-bottom:8px;
    }
    .visual-caption p{
      color:rgba(255,255,255,.78);
      font-size:14px;
    }
    .visual-rows{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .mini-panel{
      padding:20px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.12);
    }
    .mini-panel b{
      color:var(--accent-2);
      font-size:26px;
      line-height:1;
      display:block;
      margin-bottom:8px;
    }
    .mini-panel span{
      color:rgba(255,255,255,.76);
      font-size:13px;
      line-height:1.55;
    }

    .summary-bar{
      margin-top:-38px;
      position:relative;
      z-index:4;
    }
    .summary-inner{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:1px;
      background:var(--border);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .summary-item{
      background:#fff;
      padding:25px 26px;
    }
    .summary-item small{
      display:block;
      color:var(--muted-2);
      font-size:13px;
      margin-bottom:7px;
    }
    .summary-item strong{
      display:block;
      color:var(--primary);
      font-size:20px;
      line-height:1.25;
      margin-bottom:7px;
    }
    .summary-item p{
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }

    .feature-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-large,
    .feature-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
      overflow:hidden;
    }
    .feature-large:hover,
    .feature-card:hover,
    .content-card:hover,
    .list-item:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(184,120,59,.32);
    }
    .feature-large{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      min-height:440px;
    }
    .feature-image{
      position:relative;
      overflow:hidden;
      min-height:100%;
    }
    .feature-image img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .feature-large:hover .feature-image img{transform:scale(1.045)}
    .feature-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(16,44,36,.05),rgba(16,44,36,.38));
    }
    .feature-body{padding:34px}
    .feature-body h3{
      font-size:26px;
      line-height:1.3;
      color:var(--primary);
      margin-bottom:14px;
    }
    .feature-body p{color:var(--muted);margin-bottom:22px}
    .check-list{
      display:grid;
      gap:13px;
      margin:20px 0 26px;
      list-style:none;
    }
    .check-list li{
      position:relative;
      padding-left:28px;
      color:#3d4b45;
      font-size:15px;
    }
    .check-list li::before{
      content:"✓";
      position:absolute;
      left:0;
      top:1px;
      width:19px;
      height:19px;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:12px;
      font-weight:900;
      display:grid;
      place-items:center;
    }
    .feature-side{
      display:grid;
      gap:24px;
    }
    .feature-card{padding:28px}
    .feature-icon{
      width:48px;
      height:48px;
      border-radius:16px;
      background:linear-gradient(135deg,var(--accent-soft),#fff);
      border:1px solid rgba(184,120,59,.18);
      display:grid;
      place-items:center;
      color:var(--accent);
      font-weight:900;
      margin-bottom:18px;
    }
    .feature-card h3{
      font-size:21px;
      color:var(--primary);
      margin-bottom:10px;
    }
    .feature-card p{
      color:var(--muted);
      font-size:15px;
    }

    .split-section{
      background:linear-gradient(180deg,var(--bg-2),rgba(241,243,239,.55));
      border-top:1px solid var(--border);
      border-bottom:1px solid var(--border);
    }
    .split-grid{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:46px;
      align-items:center;
    }
    .image-stack{
      position:relative;
      min-height:480px;
    }
    .image-stack .image-a,
    .image-stack .image-b{
      position:absolute;
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.7);
      background:#fff;
    }
    .image-stack .image-a{
      inset:0 90px 90px 0;
    }
    .image-stack .image-b{
      right:0;
      bottom:0;
      width:52%;
      min-width:250px;
    }
    .image-stack img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .image-a img{height:390px}
    .image-b img{height:250px}
    .info-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:38px;
      box-shadow:var(--shadow-soft);
    }
    .info-panel h2{
      font-size:clamp(28px,3vw,36px);
      line-height:1.28;
      color:var(--primary);
      margin-bottom:14px;
    }
    .info-panel p{color:var(--muted);margin-bottom:24px}
    .detail-list{
      display:grid;
      gap:14px;
      list-style:none;
    }
    .detail-list li{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:14px;
      padding:16px;
      border:1px solid var(--border);
      border-radius:16px;
      background:#fcfcf8;
    }
    .detail-list em{
      font-style:normal;
      width:32px;
      height:32px;
      border-radius:12px;
      background:var(--primary);
      color:#fff;
      display:grid;
      place-items:center;
      font-weight:900;
      font-size:13px;
    }
    .detail-list strong{
      display:block;
      color:var(--text);
      margin-bottom:3px;
    }
    .detail-list span{
      color:var(--muted);
      font-size:14px;
    }

    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step-card{
      position:relative;
      padding:28px 24px;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:var(--ease);
    }
    .step-card:hover{
      transform:translateY(-4px);
      border-color:rgba(184,120,59,.35);
      box-shadow:var(--shadow);
    }
    .step-card::before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:4px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
    }
    .step-num{
      display:inline-flex;
      width:38px;
      height:38px;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:var(--primary-soft);
      color:var(--primary);
      font-weight:900;
      margin-bottom:18px;
    }
    .step-card h3{
      font-size:20px;
      color:var(--primary);
      margin-bottom:9px;
    }
    .step-card p{
      color:var(--muted);
      font-size:15px;
    }

    .content-zone{
      background:#fff;
    }
    .content-layout{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:28px;
      align-items:start;
    }
    .category-entry{
      position:sticky;
      top:98px;
      padding:30px;
      border-radius:var(--radius-lg);
      background:linear-gradient(160deg,var(--primary),#183e34);
      color:#fff;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .category-entry::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-90px;
      width:230px;
      height:230px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:50%;
      box-shadow:0 0 0 26px rgba(255,255,255,.04);
    }
    .category-entry h2{
      position:relative;
      z-index:1;
      font-size:28px;
      line-height:1.3;
      margin-bottom:12px;
    }
    .category-entry p{
      position:relative;
      z-index:1;
      color:rgba(255,255,255,.76);
      margin-bottom:22px;
    }
    .tag-group{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-bottom:26px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:6px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.11);
      border:1px solid rgba(255,255,255,.16);
      color:rgba(255,255,255,.86);
      font-size:13px;
      font-weight:700;
    }
    .category-entry .btn{
      position:relative;
      z-index:1;
      background:#fff;
      color:var(--primary);
    }
    .content-list{
      display:grid;
      gap:18px;
    }
    .list-item{
      display:grid;
      grid-template-columns:220px 1fr;
      gap:22px;
      padding:18px;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:#fff;
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
    }
    .list-thumb{
      border-radius:16px;
      overflow:hidden;
      min-height:146px;
      background:var(--bg-2);
    }
    .list-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .list-item:hover .list-thumb img{transform:scale(1.045)}
    .list-meta{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-bottom:8px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding:5px 9px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#8c5728;
      font-size:12px;
      font-weight:800;
      line-height:1;
    }
    .list-item h3{
      font-size:21px;
      line-height:1.35;
      color:var(--primary);
      margin-bottom:8px;
    }
    .list-item p{
      color:var(--muted);
      font-size:15px;
      margin-bottom:14px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-weight:800;
      font-size:14px;
      transition:var(--ease);
    }
    .text-link:hover{
      color:#8c5728;
      gap:12px;
    }

    .proof-section{
      background:
        linear-gradient(180deg,rgba(16,44,36,.96),rgba(16,44,36,.93)),
        url('/assets/images/backpic/back-2.webp');
      background-size:cover;
      background-position:center;
      color:#fff;
    }
    .proof-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:28px;
      align-items:center;
    }
    .proof-copy .eyebrow{
      background:rgba(255,255,255,.10);
      color:#f2d4b0;
      border:1px solid rgba(255,255,255,.14);
    }
    .proof-copy .section-title{color:#fff}
    .proof-copy .section-desc{color:rgba(255,255,255,.74)}
    .proof-points{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .proof-card{
      padding:24px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .proof-card strong{
      display:block;
      color:#fff;
      font-size:20px;
      margin-bottom:8px;
    }
    .proof-card span{
      color:rgba(255,255,255,.70);
      font-size:14px;
      line-height:1.65;
    }

    .faq-wrap{
      max-width:920px;
      margin:0 auto;
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--border);
      border-radius:18px;
      background:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:21px 24px;
      color:var(--primary);
      font-size:17px;
      font-weight:900;
      text-align:left;
      transition:var(--ease);
    }
    .faq-question:hover{background:#fbfbf7}
    .faq-question i{
      flex:0 0 auto;
      width:28px;
      height:28px;
      border-radius:50%;
      background:var(--primary-soft);
      position:relative;
      transition:var(--ease);
    }
    .faq-question i::before,
    .faq-question i::after{
      content:"";
      position:absolute;
      top:50%;
      left:50%;
      width:12px;
      height:2px;
      background:var(--primary);
      transform:translate(-50%,-50%);
      border-radius:2px;
    }
    .faq-question i::after{transform:translate(-50%,-50%) rotate(90deg)}
    .faq-item.open .faq-question i{
      background:var(--accent);
    }
    .faq-item.open .faq-question i::before,
    .faq-item.open .faq-question i::after{background:#fff}
    .faq-item.open .faq-question i::after{opacity:0}
    .faq-answer{
      display:none;
      padding:0 24px 22px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}

    .cta{
      padding:72px 0;
    }
    .cta-card{
      position:relative;
      border-radius:28px;
      overflow:hidden;
      background:
        linear-gradient(110deg,rgba(16,44,36,.96),rgba(24,62,52,.88)),
        url('/assets/images/backpic/back-3.webp');
      background-size:cover;
      background-position:center;
      color:#fff;
      padding:52px;
      box-shadow:var(--shadow);
    }
    .cta-card::after{
      content:"";
      position:absolute;
      right:-120px;
      top:-160px;
      width:360px;
      height:360px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 0 0 42px rgba(255,255,255,.045);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta h2{
      font-size:clamp(28px,3.4vw,40px);
      line-height:1.25;
      margin-bottom:12px;
    }
    .cta p{
      color:rgba(255,255,255,.76);
      max-width:760px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .cta .btn-secondary{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.24);
    }

    .footer{
      background:#0d211b;
      color:rgba(255,255,255,.76);
      padding-top:58px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .9fr 1fr;
      gap:34px;
      padding-bottom:42px;
    }
    .footer .brand{color:#fff;margin-bottom:18px}
    .footer .brand-text span{color:rgba(255,255,255,.58)}
    .footer-about p{
      max-width:370px;
      color:rgba(255,255,255,.65);
      font-size:14px;
    }
    .footer h3{
      font-size:16px;
      color:#fff;
      margin-bottom:16px;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.66);
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover{
      color:#f0c79d;
      padding-left:3px;
    }
    .contact-list{
      list-style:none;
      display:grid;
      gap:10px;
      color:rgba(255,255,255,.66);
      font-size:14px;
    }
    .footer-note{
      border-top:1px solid rgba(255,255,255,.10);
      padding:18px 0 24px;
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }

    @media (max-width:1024px){
      :root{--header-h:70px}
      .container{width:min(100% - 32px,var(--container))}
      .header-actions .btn{display:none}
      .hero{min-height:auto}
      .hero-grid{
        grid-template-columns:1fr;
        gap:32px;
        padding:72px 0;
      }
      .hero-visual{max-width:680px}
      .summary-inner{grid-template-columns:repeat(2,1fr)}
      .feature-layout,
      .feature-large,
      .split-grid,
      .content-layout,
      .proof-grid,
      .cta-content{
        grid-template-columns:1fr;
      }
      .category-entry{position:relative;top:auto}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width:768px){
      body{font-size:15px}
      .section{padding:64px 0}
      .section.tight{padding:48px 0}
      .mobile-toggle{display:inline-flex}
      .site-nav{
        position:absolute;
        left:16px;
        right:16px;
        top:calc(100% + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:20px;
        padding:10px;
        background:#fff;
        box-shadow:var(--shadow);
      }
      .site-nav.open{display:flex}
      .nav-link{padding:13px 15px;text-align:center}
      .brand-text span{display:none}
      .hero{
        background-image:
          linear-gradient(180deg,rgba(12,31,26,.94) 0%,rgba(12,31,26,.72) 58%,rgba(12,31,26,.48) 100%),
          url('/assets/images/backpic/back-1.webp');
      }
      .hero h1{font-size:38px}
      .hero-lead{font-size:16px}
      .hero-notes{grid-template-columns:1fr}
      .visual-rows{grid-template-columns:1fr}
      .summary-bar{margin-top:0;padding-top:18px}
      .summary-inner{grid-template-columns:1fr}
      .feature-large{min-height:auto}
      .feature-image{min-height:240px}
      .feature-body,.info-panel,.cta-card{padding:28px}
      .image-stack{min-height:auto;display:grid;gap:16px}
      .image-stack .image-a,
      .image-stack .image-b{
        position:relative;
        inset:auto;
        right:auto;
        bottom:auto;
        width:100%;
        min-width:0;
      }
      .image-a img,.image-b img{height:260px}
      .process-grid{grid-template-columns:1fr}
      .list-item{grid-template-columns:1fr}
      .list-thumb{height:210px}
      .proof-points{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      .container{width:min(100% - 24px,var(--container))}
      .header-inner{gap:12px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text strong{font-size:17px}
      .hero-grid{padding:54px 0}
      .hero h1{font-size:34px}
      .hero-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .visual-main img{height:245px}
      .summary-item{padding:21px}
      .feature-body,.feature-card,.info-panel,.step-card,.category-entry,.cta-card{padding:24px}
      .detail-list li{grid-template-columns:1fr}
      .detail-list em{margin-bottom:2px}
      .list-thumb{height:190px}
      .faq-question{padding:18px;font-size:16px}
      .faq-answer{padding:0 18px 18px}
      .footer-note{flex-direction:column}
    }

/* roulang page: category1 */
:root{
      --ink:#13221d;
      --ink-2:#22342e;
      --muted:#68736f;
      --muted-2:#8b9691;
      --primary:#143b32;
      --primary-2:#0f2d27;
      --accent:#b8793d;
      --accent-2:#d49a5e;
      --paper:#fbf8f0;
      --soft:#f1eee5;
      --stone:#e8e5dc;
      --white:#ffffff;
      --line:rgba(19,34,29,.12);
      --line-strong:rgba(19,34,29,.2);
      --shadow:0 18px 50px rgba(17,31,27,.10);
      --shadow-hover:0 22px 64px rgba(17,31,27,.16);
      --radius:18px;
      --radius-lg:28px;
      --container:1220px;
      --section:82px;
      --ease:all .25s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:linear-gradient(180deg,var(--paper),#fff 48%,var(--soft));
      line-height:1.78;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    ::selection{background:rgba(184,121,61,.2)}
    .container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}
    .skip-link{position:absolute;left:16px;top:-44px;background:var(--primary);color:#fff;padding:10px 14px;border-radius:12px;z-index:1000}
    .skip-link:focus{top:16px;outline:3px solid rgba(184,121,61,.35)}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(251,248,240,.88);
      backdrop-filter:saturate(140%) blur(16px);
      border-bottom:1px solid rgba(19,34,29,.08);
    }
    .header-inner{
      min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px;
      transition:var(--ease);
    }
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:42px;height:42px;border-radius:50%;position:relative;flex:0 0 auto;
      background:radial-gradient(circle at 70% 25%,var(--accent-2),var(--accent) 38%,var(--primary) 39%,var(--primary-2));
      box-shadow:0 10px 26px rgba(20,59,50,.22);
    }
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.64);border-radius:50%;inset:9px 5px;transform:rotate(-24deg)}
    .brand-mark:after{inset:5px 12px;transform:rotate(28deg);opacity:.78}
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{font-size:20px;letter-spacing:.03em;color:var(--primary)}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:3px}
    .site-nav{display:flex;align-items:center;justify-content:center;gap:8px;margin-left:auto}
    .nav-link{
      padding:10px 15px;border-radius:999px;color:var(--ink-2);font-size:15px;border:1px solid transparent;
    }
    .nav-link:hover{background:rgba(184,121,61,.10);color:var(--primary);border-color:rgba(184,121,61,.16)}
    .nav-link.active{background:var(--primary);color:#fff;box-shadow:0 12px 24px rgba(20,59,50,.18)}
    .header-action{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:999px;background:var(--accent);color:#fff;font-weight:700;box-shadow:0 12px 28px rgba(184,121,61,.22)}
    .header-action:hover{transform:translateY(-2px);background:#c98747;box-shadow:0 16px 34px rgba(184,121,61,.28)}
    .menu-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;gap:4px;flex-direction:column}
    .menu-toggle span{width:18px;height:2px;background:var(--primary);border-radius:999px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 20px;border-radius:999px;font-weight:700;border:1px solid transparent;transition:var(--ease)
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 16px 32px rgba(20,59,50,.20)}
    .btn-primary:hover{transform:translateY(-3px);background:var(--primary-2);box-shadow:var(--shadow-hover)}
    .btn-secondary{background:rgba(255,255,255,.78);border-color:var(--line-strong);color:var(--primary)}
    .btn-secondary:hover{transform:translateY(-3px);border-color:rgba(184,121,61,.45);color:var(--accent);box-shadow:0 14px 28px rgba(17,31,27,.09)}
    .btn:focus,.nav-link:focus,.header-action:focus,.tag:focus,.page-link:focus,a:focus-visible{outline:3px solid rgba(184,121,61,.32);outline-offset:3px}
    .hero{padding:34px 0 64px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;right:-160px;top:10px;width:440px;height:440px;border:1px solid rgba(184,121,61,.16);border-radius:50%;background:radial-gradient(circle,rgba(184,121,61,.07),transparent 62%);pointer-events:none}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin:10px 0 24px}
    .breadcrumb a{color:var(--primary);font-weight:700}
    .breadcrumb span:last-child{color:var(--muted)}
    .hero-panel{
      display:grid;grid-template-columns:minmax(0,1.02fr) minmax(340px,.78fr);gap:34px;align-items:stretch;
      background:linear-gradient(135deg,rgba(20,59,50,.97),rgba(15,45,39,.90)),url('/assets/images/backpic/back-2.webp') center/cover;
      border-radius:var(--radius-lg);padding:46px;border:1px solid rgba(255,255,255,.16);box-shadow:var(--shadow);position:relative;overflow:hidden;
    }
    .hero-panel:after{content:"";position:absolute;inset:auto -80px -160px auto;width:360px;height:360px;border-radius:50%;border:1px solid rgba(255,255,255,.18)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.11);color:#f2d2ad;border:1px solid rgba(255,255,255,.16);font-size:13px;font-weight:700}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 5px rgba(212,154,94,.16)}
    h1{font-size:clamp(36px,4.6vw,54px);line-height:1.16;letter-spacing:-.02em;color:#fff;margin:18px 0 18px;max-width:780px}
    .hero-lead{font-size:17px;color:rgba(255,255,255,.82);max-width:760px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
    .hero-card{position:relative;z-index:1;background:rgba(255,255,255,.92);border-radius:24px;padding:24px;border:1px solid rgba(255,255,255,.5);align-self:end;box-shadow:0 20px 40px rgba(0,0,0,.12)}
    .hero-card img{width:100%;height:190px;object-fit:cover;border-radius:18px;margin-bottom:18px;filter:saturate(.9)}
    .summary-list{display:grid;gap:12px}
    .summary-item{display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:16px;background:#fbfaf6;border:1px solid var(--line)}
    .summary-item b{display:inline-flex;width:28px;height:28px;border-radius:10px;align-items:center;justify-content:center;background:rgba(184,121,61,.12);color:var(--accent);flex:0 0 auto}
    .summary-item strong{display:block;color:var(--primary);line-height:1.35}
    .summary-item span{display:block;color:var(--muted);font-size:13px;margin-top:2px;line-height:1.55}
    .section{padding:var(--section) 0}
    .section-sm{padding:56px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:30px}
    .section-kicker{color:var(--accent);font-weight:800;font-size:14px;letter-spacing:.08em;margin-bottom:8px}
    .section-title{font-size:clamp(28px,3vw,34px);line-height:1.28;color:var(--ink)}
    .section-desc{color:var(--muted);max-width:650px;line-height:1.85;margin-top:10px}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
    .intro-card,.info-box,.content-card,.side-card,.process-step,.faq-item,.recommend-card{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 34px rgba(17,31,27,.06)}
    .intro-card{padding:30px}
    .intro-card p{color:var(--muted);margin-top:12px}
    .info-box{padding:26px;background:linear-gradient(180deg,#fff,#fbf8f0)}
    .info-box h3{font-size:21px;color:var(--primary);margin-bottom:14px}
    .check-list{display:grid;gap:11px;list-style:none}
    .check-list li{position:relative;padding-left:28px;color:var(--ink-2)}
    .check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:900}
    .tag-panel{border-radius:24px;padding:22px;background:var(--soft);border:1px solid var(--line)}
    .tag-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
    .tag{display:inline-flex;align-items:center;min-height:38px;padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);font-weight:700;font-size:14px;box-shadow:0 8px 18px rgba(17,31,27,.04)}
    .tag:hover,.tag.active{color:#fff;background:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:28px;align-items:start}
    .content-list{display:grid;gap:18px}
    .content-card{display:grid;grid-template-columns:240px minmax(0,1fr);overflow:hidden;transition:var(--ease)}
    .content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(184,121,61,.28)}
    .card-media{position:relative;overflow:hidden;min-height:180px;background:var(--stone)}
    .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
    .content-card:hover .card-media img{transform:scale(1.045)}
    .card-media:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(15,45,39,.22))}
    .card-body{padding:24px 26px;display:flex;flex-direction:column;gap:12px}
    .meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted-2);font-size:13px}
    .meta span{display:inline-flex;align-items:center;gap:6px}
    .meta span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
    .content-card h3{font-size:22px;line-height:1.35;color:var(--primary)}
    .content-card p{color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .card-link{margin-top:auto;color:var(--accent);font-weight:800;display:inline-flex;align-items:center;gap:7px}
    .card-link:hover{gap:12px;color:#965d2b}
    .side-card{padding:24px;margin-bottom:18px}
    .side-card h3{font-size:20px;color:var(--primary);margin-bottom:14px}
    .side-note{color:var(--muted);font-size:14px}
    .hot-list{list-style:none;display:grid;gap:12px}
    .hot-list a{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);color:var(--ink-2)}
    .hot-list li:last-child a{border-bottom:0}
    .hot-list a:hover{color:var(--accent);padding-left:4px}
    .hot-list em{font-style:normal;color:var(--muted-2);font-size:13px;white-space:nowrap}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
    .process-step{padding:24px;position:relative;overflow:hidden;transition:var(--ease)}
    .process-step:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .process-step:before{counter-increment:step;content:"0" counter(step);display:inline-flex;width:42px;height:42px;border-radius:14px;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-weight:900;margin-bottom:18px}
    .process-step:after{content:"";position:absolute;right:-34px;top:-34px;width:100px;height:100px;border-radius:50%;background:rgba(184,121,61,.08)}
    .process-step h3{font-size:20px;color:var(--primary);margin-bottom:8px}
    .process-step p{color:var(--muted);font-size:15px}
    .recommend-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .recommend-card{padding:26px;display:flex;align-items:center;justify-content:space-between;gap:18px;transition:var(--ease)}
    .recommend-card:hover{transform:translateY(-3px);border-color:rgba(184,121,61,.3);box-shadow:var(--shadow)}
    .recommend-card h3{font-size:21px;color:var(--primary)}
    .recommend-card p{color:var(--muted);margin-top:6px}
    .recommend-card span{width:42px;height:42px;border-radius:50%;background:rgba(184,121,61,.12);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-weight:900;flex:0 0 auto}
    .pagination{display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;margin-top:30px}
    .page-link{min-width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);font-weight:800}
    .page-link:hover,.page-link.active{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px)}
    .faq-wrap{display:grid;gap:14px;max-width:940px;margin:0 auto}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;text-align:left;gap:18px;padding:20px 22px;color:var(--primary);font-weight:900;font-size:17px}
    .faq-q span:last-child{width:28px;height:28px;border-radius:50%;background:rgba(184,121,61,.12);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;transition:var(--ease)}
    .faq-a{padding:0 22px 20px;color:var(--muted);display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg);background:var(--accent);color:#fff}
    .cta{padding:76px 0}
    .cta-panel{border-radius:var(--radius-lg);padding:42px;background:linear-gradient(135deg,var(--primary),#1f4e42);color:#fff;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .cta-panel:before{content:"";position:absolute;right:-80px;top:-120px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.16)}
    .cta-panel h2{font-size:clamp(26px,3vw,34px);line-height:1.3;position:relative}
    .cta-panel p{color:rgba(255,255,255,.78);margin-top:10px;position:relative;max-width:700px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}
    .footer{background:#101f1b;color:rgba(255,255,255,.78);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.35fr .7fr 1fr .85fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer .brand-text strong{color:#fff}
    .footer .brand-text span{color:rgba(255,255,255,.58)}
    .footer-about p{margin-top:16px;color:rgba(255,255,255,.68);max-width:360px}
    .footer h3{font-size:17px;color:#fff;margin-bottom:14px}
    .footer-links,.contact-list{list-style:none;display:grid;gap:10px;color:rgba(255,255,255,.66);font-size:14px}
    .footer a:hover{color:#f0b879}
    .footer-note{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:rgba(255,255,255,.52);font-size:13px;padding-top:20px}
    @media (max-width:1024px){
      :root{--section:68px}
      .header-action{display:none}
      .hero-panel,.intro-grid,.content-layout{grid-template-columns:1fr}
      .hero-card{align-self:stretch}
      .process{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .header-inner{min-height:68px;position:relative}
      .menu-toggle{display:flex}
      .site-nav{position:absolute;left:0;right:0;top:68px;display:none;flex-direction:column;align-items:stretch;background:rgba(251,248,240,.98);padding:14px;border:1px solid var(--line);border-radius:0 0 22px 22px;box-shadow:var(--shadow)}
      .site-nav.open{display:flex}
      .nav-link{text-align:center}
      .hero{padding-top:22px}
      .hero-panel{padding:28px;border-radius:24px}
      .hero-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .section-head{display:block}
      .content-card{grid-template-columns:1fr}
      .card-media{height:210px}
      .recommend-grid,.process{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:30px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .brand-text strong{font-size:18px}
      .brand-mark{width:38px;height:38px}
      .breadcrumb{font-size:13px}
      .hero-card img{height:150px}
      .intro-card,.info-box,.side-card,.content-card .card-body,.process-step{padding:20px}
      .tag{width:100%;justify-content:center}
      .page-link{min-width:40px;height:40px}
      .footer-note{display:grid}
    }