/* roulang page: index */
:root{
      --primary:#19B89A;
      --primary-dark:#087C6D;
      --primary-soft:#EAF8F4;
      --accent:#FF8A3D;
      --accent-soft:#FFF1E7;
      --bg:#FAF7F0;
      --surface:#FFFFFF;
      --surface-2:#F4FBF8;
      --text:#1D2B2A;
      --muted:#667977;
      --border:#DCE9E5;
      --border-strong:rgba(8,124,109,.18);
      --shadow:0 22px 60px rgba(20,91,82,.10);
      --shadow-hover:0 28px 70px rgba(20,91,82,.16);
      --gradient-brand:linear-gradient(135deg,#19B89A 0%,#7DD7C4 48%,#FFB36B 100%);
      --gradient-deep:linear-gradient(135deg,#087C6D 0%,#19B89A 55%,#FF8A3D 120%);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-pill:999px;
      --container:1200px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 9% 8%,rgba(25,184,154,.15),transparent 30%),
        radial-gradient(circle at 92% 18%,rgba(255,138,61,.14),transparent 28%),
        linear-gradient(180deg,#FAF7F0 0%,#F8FBF7 50%,#FAF7F0 100%);
      line-height:1.82;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease}
    a:hover{color:var(--primary-dark)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font-family:inherit}
    ::selection{background:rgba(25,184,154,.24);color:var(--primary-dark)}
    .container{max-width:var(--container)}
    .section{padding:96px 0}
    .section-sm{padding:70px 0}
    .section-title{
      font-size:clamp(28px,3.2vw,42px);
      line-height:1.22;
      letter-spacing:-.02em;
      font-weight:850;
      margin:0 0 16px;
      color:var(--text);
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 14px;
      border-radius:var(--radius-pill);
      background:rgba(25,184,154,.10);
      border:1px solid rgba(25,184,154,.16);
      color:var(--primary-dark);
      font-size:14px;
      font-weight:750;
      margin-bottom:18px;
    }
    .section-kicker::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--gradient-brand);
      box-shadow:0 0 0 6px rgba(25,184,154,.10);
    }
    .section-desc{
      color:var(--muted);
      font-size:17px;
      margin:0;
      max-width:760px;
    }
    .text-gradient{
      background:var(--gradient-deep);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(250,247,240,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(8,124,109,.10);
      box-shadow:0 10px 30px rgba(20,91,82,.05);
    }
    .navbar{min-height:82px;padding:12px 0}
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      color:var(--text);
      letter-spacing:-.02em;
      margin-right:28px;
    }
    .brand-mark{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--gradient-deep);
      box-shadow:0 14px 28px rgba(8,124,109,.22);
      font-weight:900;
      font-size:20px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.18}
    .brand-text strong{font-size:18px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:650;letter-spacing:0}
    .navbar-toggler{
      border:1px solid var(--border-strong);
      border-radius:15px;
      padding:10px 12px;
      background:#fff;
      box-shadow:0 10px 25px rgba(20,91,82,.08);
    }
    .navbar-toggler:focus{box-shadow:0 0 0 4px rgba(25,184,154,.18)}
    .nav-link{
      color:var(--text);
      font-weight:760;
      padding:10px 16px!important;
      border-radius:var(--radius-pill);
      position:relative;
      font-size:15px;
    }
    .nav-link:hover{
      background:rgba(25,184,154,.09);
      color:var(--primary-dark);
    }
    .nav-link.active{
      background:var(--primary-soft);
      color:var(--primary-dark)!important;
      box-shadow:inset 0 0 0 1px rgba(25,184,154,.14);
    }
    .nav-cta{margin-left:12px}
    .btn{
      border-radius:var(--radius-pill);
      font-weight:820;
      padding:12px 20px;
      border:0;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
    }
    .btn:focus,.btn:focus-visible,.form-control:focus,.form-select:focus{
      outline:0;
      box-shadow:0 0 0 4px rgba(25,184,154,.18)!important;
      border-color:rgba(25,184,154,.55)!important;
    }
    .btn-primary-custom{
      color:#fff;
      background:var(--gradient-deep);
      box-shadow:0 16px 34px rgba(8,124,109,.22);
    }
    .btn-primary-custom:hover,.btn-primary-custom:active{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 42px rgba(8,124,109,.30);
      filter:saturate(1.08);
    }
    .btn-secondary-custom{
      color:var(--primary-dark);
      background:#fff;
      border:1px solid rgba(8,124,109,.16);
      box-shadow:0 12px 28px rgba(20,91,82,.08);
    }
    .btn-secondary-custom:hover{
      background:var(--primary-soft);
      color:var(--primary-dark);
      border-color:rgba(8,124,109,.28);
      transform:translateY(-2px);
    }
    .btn-accent{
      color:#fff;
      background:linear-gradient(135deg,#FF8A3D 0%,#FFB36B 100%);
      box-shadow:0 15px 32px rgba(255,138,61,.28);
    }
    .btn-accent:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 42px rgba(255,138,61,.34)}

    .hero{
      position:relative;
      padding:86px 0 62px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:18px auto auto 50%;
      width:720px;
      height:520px;
      transform:translateX(-20%);
      background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      opacity:.12;
      border-radius:50px;
      filter:saturate(1.1);
      pointer-events:none;
    }
    .hero::after{
      content:"";
      position:absolute;
      right:-180px;
      top:120px;
      width:420px;
      height:420px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(255,138,61,.18),transparent 66%);
      pointer-events:none;
    }
    .hero-content,.hero-panel{position:relative;z-index:1}
    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:9px 16px;
      border-radius:var(--radius-pill);
      background:#fff;
      border:1px solid rgba(25,184,154,.16);
      color:var(--primary-dark);
      box-shadow:0 12px 30px rgba(20,91,82,.08);
      font-size:14px;
      font-weight:820;
      margin-bottom:24px;
    }
    .hero-badge .dot{
      width:10px;height:10px;border-radius:50%;background:var(--accent);
      box-shadow:0 0 0 7px rgba(255,138,61,.14);
    }
    .hero h1{
      font-size:clamp(36px,5vw,58px);
      line-height:1.14;
      font-weight:920;
      letter-spacing:-.035em;
      margin:0 0 22px;
      color:var(--text);
    }
    .hero-lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.88;
      max-width:650px;
      margin:0 0 30px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
    .trust-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .trust-tags li{
      padding:8px 12px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.72);
      border:1px solid rgba(8,124,109,.12);
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .visual-card{
      position:relative;
      padding:18px;
      border-radius:var(--radius-xl);
      background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(234,248,244,.82));
      border:1px solid rgba(8,124,109,.14);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .visual-card::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:radial-gradient(circle at 85% 12%,rgba(255,138,61,.22),transparent 32%),
                 radial-gradient(circle at 20% 80%,rgba(25,184,154,.22),transparent 35%);
      pointer-events:none;
    }
    .hero-image{
      position:relative;
      min-height:300px;
      border-radius:28px;
      overflow:hidden;
      background:var(--gradient-brand);
      border:1px solid rgba(255,255,255,.65);
    }
    .hero-image img{width:100%;height:340px;object-fit:cover;opacity:.82}
    .hero-image .overlay{
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(8,124,109,.05),rgba(8,124,109,.72));
    }
    .hero-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:22px;
      color:#fff;
    }
    .hero-caption strong{display:block;font-size:23px;line-height:1.25;margin-bottom:8px}
    .hero-caption span{display:block;color:rgba(255,255,255,.86);font-size:14px}
    .floating-stat{
      position:absolute;
      z-index:3;
      right:0;
      top:42px;
      transform:translateX(18px);
      width:156px;
      padding:16px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:0 18px 42px rgba(20,91,82,.16);
    }
    .floating-stat b{display:block;font-size:30px;line-height:1;color:var(--accent);font-weight:920}
    .floating-stat span{display:block;margin-top:8px;color:var(--muted);font-size:13px;font-weight:700;line-height:1.45}
    .mini-flow{
      position:relative;
      z-index:2;
      margin-top:16px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .flow-chip{
      padding:14px 12px;
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(8,124,109,.10);
      box-shadow:0 10px 28px rgba(20,91,82,.06);
      color:var(--muted);
      font-size:13px;
      font-weight:750;
    }
    .flow-chip b{display:block;color:var(--primary-dark);font-size:16px;margin-bottom:4px}

    .intro-strip{
      margin-top:42px;
      position:relative;
      z-index:2;
    }
    .strip-card{
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
      padding:24px;
      display:grid;
      grid-template-columns:1.2fr repeat(3,.8fr);
      gap:18px;
      align-items:center;
    }
    .strip-title{font-weight:880;font-size:21px;margin:0;color:var(--text)}
    .strip-text{color:var(--muted);margin:8px 0 0;font-size:15px}
    .strip-metric{
      padding:18px;
      border-radius:22px;
      background:var(--surface-2);
      border:1px solid rgba(8,124,109,.10);
    }
    .strip-metric b{display:block;color:var(--primary-dark);font-size:24px;font-weight:920;line-height:1.1}
    .strip-metric span{font-size:13px;color:var(--muted);font-weight:700}

    .service-layout{
      margin-top:40px;
      display:grid;
      grid-template-columns:.92fr 1.45fr;
      gap:22px;
      align-items:stretch;
    }
    .explain-card,.service-card,.case-card,.topic-card,.faq-wrap,.contact-card{
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
    }
    .explain-card{
      border-radius:var(--radius-xl);
      background:var(--gradient-deep);
      color:#fff;
      padding:34px;
      min-height:100%;
      position:relative;
      overflow:hidden;
    }
    .explain-card::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(255,255,255,.12);
    }
    .explain-card h3{font-size:28px;font-weight:880;line-height:1.25;margin:0 0 14px}
    .explain-card p{color:rgba(255,255,255,.82);margin:0 0 24px}
    .check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .check-list li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.9);font-weight:700}
    .check-list li::before{
      content:"✓";
      flex:0 0 24px;
      width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(255,255,255,.16);
      color:#fff;
      font-size:13px;
    }
    .service-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .service-card{
      position:relative;
      padding:28px;
      border-radius:var(--radius-lg);
      background:#fff;
      overflow:hidden;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .service-card::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;height:5px;
      background:var(--gradient-brand);
    }
    .service-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(25,184,154,.26);
    }
    .icon-dot{
      width:48px;height:48px;border-radius:18px;
      background:linear-gradient(135deg,rgba(25,184,154,.14),rgba(255,138,61,.14));
      display:grid;place-items:center;
      color:var(--primary-dark);
      font-weight:900;
      margin-bottom:18px;
    }
    .service-card h3{font-size:22px;font-weight:850;margin:0 0 10px;line-height:1.28}
    .service-card p{color:var(--muted);margin:0 0 16px;font-size:15px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .tag{
      display:inline-flex;
      padding:6px 10px;
      border-radius:var(--radius-pill);
      background:var(--accent-soft);
      color:#B65318;
      font-size:12px;
      font-weight:800;
    }
    .category-entrance{
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(255,255,255,.96),rgba(234,248,244,.82));
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
      padding:34px;
      overflow:hidden;
      position:relative;
    }
    .category-entrance::before{
      content:"";
      position:absolute;
      width:280px;height:280px;border-radius:50%;
      right:-110px;top:-120px;
      background:radial-gradient(circle,rgba(255,138,61,.18),transparent 68%);
    }
    .category-card{
      position:relative;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:center;
    }
    .category-card h2{font-size:clamp(28px,3vw,40px);font-weight:900;line-height:1.2;margin:0 0 14px}
    .category-card p{color:var(--muted);margin:0 0 22px}
    .category-cover{
      border-radius:28px;
      overflow:hidden;
      min-height:250px;
      background:var(--gradient-brand);
      border:1px solid rgba(8,124,109,.10);
      box-shadow:0 18px 42px rgba(20,91,82,.12);
    }
    .category-cover img{width:100%;height:270px;object-fit:cover}

    .stats-section{padding:92px 0}
    .stats-shell{
      border-radius:38px;
      background:var(--gradient-deep);
      padding:42px;
      position:relative;
      overflow:hidden;
      box-shadow:0 30px 90px rgba(8,63,57,.22);
    }
    .stats-shell::before{
      content:"";
      position:absolute;
      inset:0;
      background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.10;
    }
    .stats-head,.stats-grid{position:relative;z-index:1}
    .stats-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}
    .stats-head h2{color:#fff;margin:0;font-size:clamp(28px,3.4vw,42px);font-weight:900;line-height:1.22}
    .stats-head p{color:rgba(255,255,255,.78);margin:0;max-width:460px}
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .stat-card{
      padding:24px;
      border-radius:26px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      color:#fff;
      backdrop-filter:blur(8px);
    }
    .stat-card b{display:block;font-size:38px;line-height:1;font-weight:950;color:#FFE2C6;margin-bottom:10px}
    .stat-card span{display:block;color:rgba(255,255,255,.85);font-weight:750;font-size:14px}

    .case-grid{
      margin-top:40px;
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:20px;
    }
    .case-card{
      border-radius:var(--radius-xl);
      background:#fff;
      overflow:hidden;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(25,184,154,.25)}
    .case-large{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
    .case-img{position:relative;min-height:280px;background:var(--primary-soft);overflow:hidden}
    .case-img img{width:100%;height:100%;object-fit:cover}
    .case-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(8,124,109,.28))}
    .case-body{padding:32px}
    .case-body h3{font-size:26px;line-height:1.25;font-weight:880;margin:0 0 12px}
    .case-body p{color:var(--muted);margin:0 0 18px}
    .link-arrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary-dark);
      font-weight:850;
    }
    .link-arrow::after{content:"→";transition:transform .2s ease}
    .link-arrow:hover::after{transform:translateX(4px)}
    .case-side{display:grid;gap:20px}
    .small-case{padding:26px}
    .small-case h3{font-size:21px;font-weight:850;margin:10px 0 10px}
    .small-case p{color:var(--muted);margin:0;font-size:15px}

    .process-wrap{
      margin-top:42px;
      position:relative;
    }
    .process-wrap::before{
      content:"";
      position:absolute;
      left:calc(12.5% - 1px);
      right:calc(12.5% - 1px);
      top:42px;
      border-top:2px dashed rgba(25,184,154,.28);
    }
    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      position:relative;
      z-index:1;
    }
    .step-card{
      padding:26px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .step-num{
      width:58px;height:58px;border-radius:22px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,#FF8A3D,#FFB36B);
      color:#fff;
      font-weight:950;
      box-shadow:0 15px 30px rgba(255,138,61,.26);
      margin-bottom:20px;
    }
    .step-card h3{font-size:20px;font-weight:850;margin:0 0 10px}
    .step-card p{color:var(--muted);margin:0;font-size:15px}

    .topic-card{
      border-radius:var(--radius-xl);
      background:#fff;
      padding:32px;
      height:100%;
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .topic-card h3{font-size:23px;font-weight:880;margin:14px 0 10px}
    .topic-card p{color:var(--muted);margin:0 0 18px}
    .topic-icon{
      width:52px;height:52px;border-radius:20px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
    }

    .faq-wrap{
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.76);
      padding:24px;
    }
    .accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0}
    .accordion-item{
      border:1px solid rgba(8,124,109,.12)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      margin-bottom:14px;
      box-shadow:0 10px 26px rgba(20,91,82,.05);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:850;
      color:var(--text);
      background:#fff;
      border:0;
      box-shadow:none!important;
      line-height:1.45;
    }
    .accordion-button:not(.collapsed){
      background:var(--primary-soft);
      color:var(--primary-dark);
    }
    .accordion-button::after{
      width:26px;height:26px;border-radius:50%;
      background-color:rgba(25,184,154,.12);
      background-size:14px;
      background-position:center;
      border:1px solid rgba(25,184,154,.16);
    }
    .accordion-body{
      padding:0 22px 22px;
      color:var(--muted);
      background:#fff;
    }

    .contact-card{
      border-radius:38px;
      background:var(--gradient-deep);
      padding:44px;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .contact-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      opacity:.09;
    }
    .contact-card>*{position:relative;z-index:1}
    .contact-card h2{
      font-size:clamp(28px,3.2vw,42px);
      line-height:1.22;
      font-weight:920;
      margin:0 0 14px;
    }
    .contact-card p{color:rgba(255,255,255,.82);margin:0 0 24px}
    .contact-points{display:grid;gap:12px;margin-top:24px}
    .contact-points span{
      display:flex;align-items:center;gap:10px;
      color:rgba(255,255,255,.9);
      font-weight:750;
    }
    .contact-points span::before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      background:#FFB36B;
      box-shadow:0 0 0 7px rgba(255,179,107,.16);
    }
    .consult-form{
      background:rgba(255,255,255,.94);
      border:1px solid rgba(255,255,255,.45);
      border-radius:28px;
      padding:24px;
      box-shadow:0 22px 55px rgba(8,63,57,.18);
    }
    .form-label{color:var(--text);font-weight:800;font-size:14px;margin-bottom:8px}
    .form-control,.form-select{
      min-height:48px;
      border-radius:16px;
      border:1px solid rgba(8,124,109,.14);
      background:#F8FCFA;
      color:var(--text);
      padding:12px 14px;
    }
    textarea.form-control{min-height:112px;resize:vertical}
    .form-control::placeholder{color:#8CA09E}

    .site-footer{
      background:#073F39;
      color:rgba(255,255,255,.82);
      padding:58px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      right:-120px;top:-160px;
      width:420px;height:420px;border-radius:50%;
      background:rgba(25,184,154,.18);
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
    .footer-brand .brand-mark{width:44px;height:44px;border-radius:15px}
    .footer-brand strong{color:#fff;font-size:18px;font-weight:900}
    .footer-desc{max-width:430px;color:rgba(255,255,255,.72);margin:0}
    .footer-title{color:#fff;font-weight:850;margin:0 0 14px;font-size:16px}
    .footer-links,.footer-tags{list-style:none;padding:0;margin:0;display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.72);font-weight:650}
    .footer-links a:hover{color:#FFB36B;text-decoration:underline;text-underline-offset:4px}
    .footer-tags{display:flex;flex-wrap:wrap;gap:8px}
    .footer-tags li{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.80);
      font-size:13px;
      font-weight:700;
    }
    .footer-bottom{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.62);
      font-size:14px;
    }

    @media (max-width: 1199px){
      .floating-stat{right:18px;transform:none}
      .strip-card{grid-template-columns:1fr 1fr}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 991px){
      .section{padding:72px 0}
      .navbar-collapse{
        margin-top:14px;
        padding:18px;
        border-radius:24px;
        background:#fff;
        border:1px solid rgba(8,124,109,.12);
        box-shadow:var(--shadow);
      }
      .navbar-nav{gap:8px}
      .nav-cta{margin-left:0;margin-top:10px;width:100%}
      .nav-cta .btn{width:100%}
      .hero{padding:58px 0 46px}
      .hero-panel{margin-top:32px}
      .service-layout,.category-card,.case-grid{grid-template-columns:1fr}
      .case-large{grid-template-columns:1fr}
      .process-wrap::before{display:none}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .stats-head{display:block}
      .stats-head p{margin-top:14px}
    }
    @media (max-width: 767px){
      .section{padding:60px 0}
      .navbar{min-height:72px}
      .brand-mark{width:42px;height:42px}
      .brand-text strong{font-size:16px}
      .hero-actions .btn{width:100%}
      .mini-flow,.service-grid,.strip-card,.stats-grid,.process-grid{grid-template-columns:1fr}
      .floating-stat{position:relative;right:auto;top:auto;margin:-44px 18px 0 auto}
      .hero-image img{height:300px}
      .stats-shell,.contact-card{padding:28px;border-radius:28px}
      .case-body,.category-entrance,.explain-card{padding:26px}
      .consult-form{margin-top:26px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width: 520px){
      .hero h1{font-size:34px}
      .hero-lead,.section-desc{font-size:16px}
      .service-card,.topic-card,.step-card,.faq-wrap{padding:22px;border-radius:22px}
      .strip-metric{padding:16px}
      .stats-shell{padding:22px}
      .stat-card{padding:20px}
      .contact-card{padding:22px}
      .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --primary:#19B89A;
      --primary-dark:#087C6D;
      --accent:#FF8A3D;
      --accent-soft:#FFF1E7;
      --bg:#FAF7F0;
      --surface:#FFFFFF;
      --mint-soft:#EAF8F4;
      --text:#1D2B2A;
      --muted:#667977;
      --border:#DCE9E5;
      --footer:#073F39;
      --shadow:0 20px 60px rgba(20,91,82,.10);
      --shadow-hover:0 24px 72px rgba(20,91,82,.16);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:20px;
      --gradient-brand:linear-gradient(135deg,#19B89A 0%,#7DD7C4 48%,#FFB36B 100%);
      --gradient-deep:linear-gradient(135deg,#087C6D 0%,#19B89A 55%,#FF8A3D 120%);
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 5%,rgba(25,184,154,.14),transparent 34%),
        radial-gradient(circle at 86% 18%,rgba(255,138,61,.13),transparent 30%),
        var(--bg);
      line-height:1.82;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease}
    a:hover{color:var(--primary-dark)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font-family:inherit}
    ::selection{background:rgba(25,184,154,.22)}
    .container{max-width:1210px}
    .section{padding:94px 0}
    .section-tight{padding:70px 0}
    .section-title{max-width:760px;margin-bottom:34px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      color:var(--primary-dark);
      background:rgba(25,184,154,.10);
      border:1px solid rgba(25,184,154,.18);
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(255,138,61,.12);
    }
    h1,h2,h3,h4{line-height:1.22;font-weight:850;color:var(--text);letter-spacing:-.02em}
    h1{font-size:clamp(34px,5vw,56px);margin:18px 0 20px}
    h2{font-size:clamp(28px,3.5vw,40px);margin:12px 0 14px}
    h3{font-size:clamp(21px,2vw,26px)}
    p{color:var(--muted);margin-bottom:0}
    .text-gradient{
      background:var(--gradient-deep);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .btn{
      min-height:48px;
      padding:12px 22px;
      border-radius:999px;
      font-weight:800;
      border:1px solid transparent;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
    }
    .btn:focus,.btn-close:focus,.navbar-toggler:focus,.accordion-button:focus,.form-control:focus,.form-select:focus{
      box-shadow:0 0 0 .24rem rgba(25,184,154,.20)!important;
      outline:none;
    }
    .btn-accent,.btn-primary-custom{
      color:#fff!important;
      background:var(--gradient-brand);
      box-shadow:0 14px 30px rgba(255,138,61,.24);
    }
    .btn-accent:hover,.btn-primary-custom:hover{
      color:#fff!important;
      transform:translateY(-2px);
      box-shadow:0 18px 42px rgba(255,138,61,.30);
      filter:saturate(1.05);
    }
    .btn-soft{
      color:var(--primary-dark);
      background:#fff;
      border-color:rgba(8,124,109,.16);
      box-shadow:0 10px 28px rgba(20,91,82,.08);
    }
    .btn-soft:hover{
      color:var(--primary-dark);
      background:var(--mint-soft);
      border-color:rgba(25,184,154,.34);
      transform:translateY(-2px);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1020;
      background:rgba(250,247,240,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(8,124,109,.10);
    }
    .navbar{min-height:82px;padding:12px 0}
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-right:22px;
      color:var(--text);
    }
    .brand-mark{
      width:46px;
      height:46px;
      flex:0 0 46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:16px;
      background:var(--gradient-deep);
      color:#fff;
      font-weight:900;
      box-shadow:0 14px 30px rgba(25,184,154,.22);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{font-size:18px;letter-spacing:-.01em}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:3px}
    .navbar-toggler{
      border:1px solid rgba(8,124,109,.14);
      border-radius:16px;
      padding:10px 12px;
      background:#fff;
    }
    .navbar-toggler-icon{
      width:1.2em;
      height:1.2em;
      background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%288,124,109,.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    .navbar-nav{gap:8px}
    .nav-link{
      padding:10px 16px!important;
      border-radius:999px;
      color:var(--text);
      font-weight:750;
      font-size:15px;
    }
    .nav-link:hover{
      color:var(--primary-dark);
      background:rgba(25,184,154,.08);
    }
    .nav-link.active{
      color:var(--primary-dark)!important;
      background:rgba(25,184,154,.14);
    }
    .nav-cta{margin-left:14px}

    .inner-hero{
      position:relative;
      padding:66px 0 54px;
      overflow:hidden;
      border-bottom:1px solid rgba(8,124,109,.08);
    }
    .inner-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(250,247,240,.94),rgba(250,247,240,.70)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      z-index:-2;
    }
    .inner-hero::after{
      content:"";
      position:absolute;
      right:-90px;
      bottom:-120px;
      width:420px;
      height:420px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(255,138,61,.22),transparent 68%);
      z-index:-1;
    }
    .breadcrumb-wrap{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb-wrap a{color:var(--primary-dark)}
    .hero-summary{
      max-width:760px;
      font-size:18px;
      color:#526865;
    }
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:36px;
      padding:7px 13px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(8,124,109,.13);
      color:var(--primary-dark);
      font-weight:750;
      font-size:14px;
      box-shadow:0 8px 22px rgba(20,91,82,.06);
    }
    .index-panel{
      border-radius:var(--radius-xl);
      padding:26px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
    }
    .index-panel h2{font-size:24px;margin:0 0 16px}
    .mini-stat{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:14px 0;
      border-bottom:1px dashed rgba(8,124,109,.14);
    }
    .mini-stat:last-child{border-bottom:0}
    .mini-stat strong{
      display:block;
      font-size:24px;
      color:var(--primary-dark);
      line-height:1;
    }
    .mini-stat span{font-size:14px;color:var(--muted)}

    .intro-card,.point-card,.feature-card,.topic-card,.recommend-card,.contact-card{
      border-radius:var(--radius-lg);
      background:var(--surface);
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .intro-card:hover,.point-card:hover,.feature-card:hover,.topic-card:hover,.recommend-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(25,184,154,.30);
    }
    .intro-card{padding:34px}
    .intro-card p + p{margin-top:14px}
    .point-card{
      padding:28px;
      position:sticky;
      top:106px;
      background:
        linear-gradient(180deg,rgba(234,248,244,.78),rgba(255,255,255,.92));
    }
    .point-list{list-style:none;padding:0;margin:20px 0 0}
    .point-list li{
      display:flex;
      gap:12px;
      padding:13px 0;
      border-bottom:1px dashed rgba(8,124,109,.14);
      color:#4d625f;
      font-weight:650;
    }
    .point-list li:last-child{border-bottom:0}
    .point-list i{
      width:24px;
      height:24px;
      flex:0 0 24px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      background:var(--gradient-brand);
      color:#fff;
      font-style:normal;
      font-size:13px;
      font-weight:900;
    }

    .featured-grid{align-items:stretch}
    .lead-card{
      position:relative;
      overflow:hidden;
      min-height:100%;
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:var(--shadow);
    }
    .lead-cover{
      position:relative;
      min-height:320px;
      overflow:hidden;
      background:var(--gradient-brand);
    }
    .lead-cover img{
      width:100%;
      height:320px;
      object-fit:cover;
    }
    .lead-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(8,124,109,.02),rgba(8,124,109,.62));
    }
    .lead-badge{
      position:absolute;
      left:24px;
      top:24px;
      z-index:1;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.92);
      color:var(--primary-dark);
      font-weight:850;
      font-size:14px;
    }
    .lead-body{padding:30px}
    .lead-body h3{margin-bottom:12px}
    .small-list{display:flex;flex-direction:column;gap:16px}
    .compact-card{
      padding:22px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:0 12px 38px rgba(20,91,82,.08);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .compact-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,138,61,.34);
      box-shadow:0 18px 48px rgba(20,91,82,.13);
    }
    .compact-meta{
      color:var(--accent);
      font-size:13px;
      font-weight:850;
      margin-bottom:8px;
    }
    .compact-card h3{font-size:21px;margin-bottom:8px}
    .read-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:18px;
      color:var(--primary-dark);
      font-weight:850;
    }
    .read-link::after{content:"→";transition:transform .2s ease}
    .read-link:hover::after{transform:translateX(4px)}

    .filter-bar{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      padding:18px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(8,124,109,.12);
      box-shadow:0 12px 38px rgba(20,91,82,.07);
    }
    .filter-pill{
      padding:10px 16px;
      border-radius:999px;
      background:var(--mint-soft);
      color:var(--primary-dark);
      font-weight:800;
      border:1px solid rgba(25,184,154,.14);
    }
    .filter-pill.hot{
      background:var(--accent-soft);
      color:#B6531D;
      border-color:rgba(255,138,61,.22);
    }
    .topic-card{
      height:100%;
      overflow:hidden;
    }
    .topic-card img{
      width:100%;
      height:190px;
      object-fit:cover;
    }
    .topic-card .content{padding:24px}
    .topic-card h3{font-size:22px;margin-bottom:10px}

    .dark-section{
      position:relative;
      border-radius:var(--radius-xl);
      padding:46px;
      overflow:hidden;
      background:var(--gradient-deep);
      color:#fff;
      box-shadow:0 28px 76px rgba(8,63,57,.22);
    }
    .dark-section::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 12% 18%,rgba(255,255,255,.18),transparent 25%),
        radial-gradient(circle at 88% 82%,rgba(255,179,107,.24),transparent 32%);
      pointer-events:none;
    }
    .dark-section > *{position:relative}
    .dark-section h2,.dark-section h3{color:#fff}
    .dark-section p{color:rgba(255,255,255,.78)}
    .recommend-card{
      height:100%;
      padding:26px;
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.20);
      box-shadow:none;
      color:#fff;
    }
    .recommend-card:hover{
      background:rgba(255,255,255,.18);
      border-color:rgba(255,255,255,.34);
    }
    .recommend-card .num{
      width:42px;
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      margin-bottom:18px;
      background:#fff;
      color:var(--primary-dark);
      font-weight:950;
    }

    .accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0}
    .accordion-item{
      margin-bottom:14px;
      border:1px solid rgba(8,124,109,.12)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 10px 34px rgba(20,91,82,.07);
    }
    .accordion-button{
      padding:20px 24px;
      font-weight:850;
      color:var(--text);
      background:#fff;
      border-radius:22px!important;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary-dark);
      background:var(--mint-soft);
    }
    .accordion-button::after{
      border-radius:50%;
      background-color:rgba(25,184,154,.12);
      background-position:center;
      padding:13px;
    }
    .accordion-body{
      padding:0 24px 22px;
      color:var(--muted);
      line-height:1.86;
    }

    .contact-card{
      position:relative;
      overflow:hidden;
      padding:42px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(234,248,244,.90)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    }
    .contact-card::after{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:260px;
      height:260px;
      border-radius:50%;
      background:rgba(255,138,61,.18);
    }
    .contact-card > *{position:relative}
    .form-control,.form-select{
      min-height:50px;
      border-radius:18px;
      border:1px solid rgba(8,124,109,.14);
      background:rgba(255,255,255,.88);
      padding:12px 16px;
      color:var(--text);
    }
    textarea.form-control{min-height:116px}
    .form-control::placeholder{color:#91A09E}
    .form-label{font-weight:800;color:var(--text);font-size:14px}

    .site-footer{
      position:relative;
      padding:64px 0 28px;
      background:
        radial-gradient(circle at 10% 10%,rgba(25,184,154,.18),transparent 30%),
        linear-gradient(135deg,#073F39 0%,#0B5A50 100%);
      color:#fff;
      overflow:hidden;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
      font-size:20px;
    }
    .footer-desc{max-width:430px;color:rgba(255,255,255,.72)}
    .footer-title{
      color:#fff;
      font-size:17px;
      margin-bottom:16px;
    }
    .footer-links,.footer-tags{
      list-style:none;
      padding:0;
      margin:0;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-links a{color:rgba(255,255,255,.72)}
    .footer-links a:hover{color:var(--accent)}
    .footer-tags li{
      width:max-content;
      max-width:100%;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.10);
      color:rgba(255,255,255,.78);
      font-size:14px;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      margin-top:42px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.13);
      color:rgba(255,255,255,.62);
      font-size:14px;
    }

    @media (max-width:991.98px){
      .navbar-collapse{
        margin-top:14px;
        padding:18px;
        border-radius:24px;
        background:#fff;
        border:1px solid rgba(8,124,109,.12);
        box-shadow:var(--shadow);
      }
      .navbar-nav{align-items:stretch!important}
      .nav-link{padding:12px 14px!important}
      .nav-cta{margin-left:0;margin-top:12px}
      .nav-cta .btn{width:100%}
      .point-card{position:static}
      .dark-section{padding:34px}
    }
    @media (max-width:767.98px){
      .section{padding:66px 0}
      .section-tight{padding:54px 0}
      .inner-hero{padding:48px 0 44px}
      .brand-text span{display:none}
      .brand-mark{width:42px;height:42px;flex-basis:42px;border-radius:14px}
      .intro-card,.point-card,.lead-body,.contact-card{padding:24px}
      .lead-cover,.lead-cover img{min-height:250px;height:250px}
      .dark-section{border-radius:26px;padding:26px}
      .filter-bar{padding:14px}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{padding-left:18px;padding-right:18px}
      .btn{width:100%}
      .tag,.filter-pill{font-size:13px}
      .index-panel{padding:22px}
      .mini-stat{align-items:flex-start;flex-direction:column;gap:6px}
    }