/* roulang page: index */
:root{
      --brand:#168a4a;
      --brand-dark:#0f6f3b;
      --brand-soft:#e9f8ef;
      --success:#25b768;
      --ink:#121815;
      --muted:#66736d;
      --weak:#8b9690;
      --line:#e4ebe7;
      --bg:#f7faf8;
      --panel:#ffffff;
      --panel-dark:#17211c;
      --radius-sm:10px;
      --radius:18px;
      --radius-lg:28px;
      --shadow-sm:0 8px 22px rgba(18,24,21,.06);
      --shadow:0 18px 50px rgba(18,24,21,.10);
      --shadow-green:0 16px 36px rgba(22,138,74,.18);
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 8%, rgba(37,183,104,.08), transparent 28%),
        linear-gradient(180deg,#fff 0%,var(--bg) 42%,#fff 100%);
      line-height:1.72;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    a:hover{color:var(--brand)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font-family:inherit}
    ::selection{background:rgba(37,183,104,.18);color:var(--ink)}
    .site-container{max-width:var(--container);margin:0 auto;padding:0 22px}
    .section{padding:86px 0}
    .section-tight{padding:62px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(22,138,74,.18);
      background:var(--brand-soft);
      border-radius:999px;
      color:var(--brand-dark);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 5px rgba(37,183,104,.13);
    }
    .section-title{
      margin:18px 0 12px;
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.16;
      font-weight:850;
      letter-spacing:-.03em;
    }
    .section-desc{
      color:var(--muted);
      font-size:16px;
      max-width:720px;
      margin:0;
    }
    .btn{
      border-radius:999px;
      padding:12px 20px;
      font-weight:750;
      border-width:1px;
      transition:.22s ease;
    }
    .btn-primary{
      background:var(--brand);
      border-color:var(--brand);
      box-shadow:var(--shadow-green);
    }
    .btn-primary:hover,.btn-primary:focus{
      background:var(--brand-dark);
      border-color:var(--brand-dark);
      transform:translateY(-2px);
      box-shadow:0 18px 42px rgba(15,111,59,.22);
    }
    .btn-outline-primary{
      color:var(--brand-dark);
      border-color:rgba(22,138,74,.28);
      background:#fff;
    }
    .btn-outline-primary:hover,.btn-outline-primary:focus{
      background:var(--brand-soft);
      border-color:var(--brand);
      color:var(--brand-dark);
      transform:translateY(-2px);
    }
    .btn-link-soft{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand-dark);
      font-weight:750;
      padding:10px 0;
    }
    .btn-link-soft:hover{gap:12px;color:var(--brand)}
    .navbar-wrap{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.88);
      backdrop-filter:saturate(160%) blur(16px);
      border-bottom:1px solid rgba(228,235,231,.82);
    }
    .navbar{padding:16px 0}
    .brand-logo{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-size:18px;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--ink);
      max-width:360px;
      white-space:nowrap;
    }
    .brand-mark{
      width:28px;height:28px;border-radius:9px;
      border:1px solid rgba(22,138,74,.24);
      background:linear-gradient(135deg,#fff,var(--brand-soft));
      position:relative;
      box-shadow:var(--shadow-sm);
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;inset:9px;
      border-radius:50%;
      background:var(--brand);
    }
    .nav-menu{gap:8px;align-items:center}
    .nav-link{
      position:relative;
      color:#2c3933;
      font-size:14px;
      font-weight:750;
      padding:9px 12px!important;
      border-radius:999px;
    }
    .nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
    .nav-link.active{
      color:var(--brand-dark);
      background:#fff;
      box-shadow:inset 0 0 0 1px rgba(22,138,74,.18);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:50%;bottom:3px;
      width:22px;height:2px;
      transform:translateX(-50%);
      border-radius:999px;
      background:var(--brand);
    }
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:12px;
      padding:9px 11px;
      box-shadow:none!important;
    }
    .nav-cta{padding:10px 16px!important;font-size:14px}
    .offcanvas{
      border-radius:24px 0 0 24px;
      border-left:1px solid var(--line);
    }
    .hero{
      padding:72px 0 52px;
    }
    .hero-shell{
      background:#fff;
      border:1px solid var(--line);
      border-radius:34px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-shell::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg, rgba(22,138,74,.045) 1px, transparent 1px),
        linear-gradient(180deg, rgba(22,138,74,.045) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(90deg,transparent 0%,#000 18%,#000 82%,transparent 100%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      padding:48px;
    }
    .hero h1{
      margin:18px 0 18px;
      font-size:clamp(36px,5vw,66px);
      line-height:1.05;
      letter-spacing:-.055em;
      font-weight:920;
    }
    .hero-intro{
      color:var(--muted);
      font-size:17px;
      max-width:680px;
      margin-bottom:24px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:28px 0 26px;
    }
    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      padding:0;
      margin:0;
      list-style:none;
    }
    .hero-points li{
      display:flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:var(--bg);
      border:1px solid var(--line);
      color:#304039;
      font-size:13px;
      font-weight:700;
    }
    .hero-points li span{
      width:8px;height:8px;border-radius:50%;
      background:var(--success);
      flex:0 0 auto;
    }
    .download-stage{
      position:relative;
      padding:34px;
      height:100%;
      min-height:480px;
      background:
        radial-gradient(circle at 68% 18%, rgba(37,183,104,.16), transparent 30%),
        linear-gradient(135deg,#f7fbf8,#ffffff 46%,#eef8f2);
      border-left:1px solid var(--line);
    }
    .whitepaper-cover{
      max-width:380px;
      margin:0 auto;
      border-radius:26px;
      background:#fff;
      border:1px solid rgba(22,138,74,.16);
      box-shadow:0 28px 70px rgba(18,24,21,.14);
      padding:22px;
      transform:rotate(-1.5deg);
      position:relative;
      z-index:2;
    }
    .cover-top{
      height:150px;
      border-radius:20px;
      background:
        linear-gradient(135deg,rgba(23,33,28,.94),rgba(22,138,74,.86)),
        repeating-linear-gradient(90deg,transparent 0 22px,rgba(255,255,255,.12) 22px 23px);
      padding:18px;
      color:#fff;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .cover-title{font-size:22px;line-height:1.25;font-weight:900}
    .cover-status{
      display:flex;
      justify-content:space-between;
      align-items:center;
      font-size:12px;
      color:rgba(255,255,255,.82);
    }
    .cover-lines{padding:18px 2px 2px}
    .line-row{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 0;
      border-bottom:1px dashed var(--line);
    }
    .line-dot{
      width:24px;height:24px;border-radius:8px;
      background:var(--brand-soft);
      color:var(--brand-dark);
      display:grid;place-items:center;
      font-size:12px;
      font-weight:900;
      flex:0 0 auto;
    }
    .line-text{font-size:14px;font-weight:760;color:#26352f}
    .floating-note{
      position:absolute;
      right:28px;
      bottom:34px;
      max-width:220px;
      padding:15px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.92);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      z-index:3;
    }
    .floating-note strong{display:block;font-size:13px;margin-bottom:4px}
    .floating-note p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}
    .question-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:22px;
      align-items:stretch;
      margin-top:30px;
    }
    .question-main,.question-side,.card-soft{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
    }
    .question-main{padding:30px}
    .question-side{padding:24px;background:linear-gradient(180deg,#fff,var(--brand-soft))}
    .question-list{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-top:22px;
    }
    .question-item{
      padding:18px;
      border-radius:18px;
      border:1px solid var(--line);
      background:var(--bg);
      transition:.22s ease;
    }
    .question-item:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-sm);
      background:#fff;
    }
    .question-item b{display:block;margin-bottom:6px}
    .question-item span{font-size:14px;color:var(--muted)}
    .side-meter{
      margin-top:20px;
      padding:18px;
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(22,138,74,.18);
    }
    .meter-bar{
      height:10px;border-radius:999px;
      background:#dfe8e3;
      overflow:hidden;
      margin:12px 0;
    }
    .meter-bar i{
      display:block;
      width:78%;
      height:100%;
      background:linear-gradient(90deg,var(--brand),var(--success));
      border-radius:999px;
    }
    .feature-bento{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
      margin-top:32px;
    }
    .solution-card{
      border:1px solid var(--line);
      background:#fff;
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow-sm);
      min-height:220px;
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .solution-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(22,138,74,.25);
    }
    .solution-card.highlight{
      background:linear-gradient(135deg,#17211c,#23362d);
      color:#fff;
      min-height:304px;
    }
    .solution-card.highlight::after{
      content:"";
      position:absolute;
      right:-60px;bottom:-80px;
      width:220px;height:220px;
      border-radius:50%;
      border:34px solid rgba(37,183,104,.16);
    }
    .solution-card h3{font-size:22px;font-weight:880;margin:14px 0 10px}
    .solution-card p{color:var(--muted);margin:0 0 18px}
    .solution-card.highlight p{color:rgba(255,255,255,.72)}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border:1px solid rgba(22,138,74,.18);
      background:var(--brand-soft);
      color:var(--brand-dark);
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:750;
    }
    .highlight .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:#eafff1}
    .small-card-grid{display:grid;grid-template-columns:1fr;gap:22px}
    .stats-band{
      background:var(--panel-dark);
      color:#fff;
      border-radius:34px;
      padding:34px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .stats-band::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(180deg,rgba(255,255,255,.05) 1px,transparent 1px);
      background-size:52px 52px;
      opacity:.55;
      pointer-events:none;
    }
    .stats-grid{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:28px;
    }
    .stat-card{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.11);
    }
    .stat-num{
      display:block;
      color:#6ff0a7;
      font-size:34px;
      font-weight:920;
      line-height:1;
      margin-bottom:8px;
    }
    .stat-card span:last-child{color:rgba(255,255,255,.74);font-size:13px}
    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:30px;
    }
    .catalog-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:.22s ease;
    }
    .catalog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .catalog-card .count{
      display:inline-flex;
      color:var(--brand-dark);
      background:var(--brand-soft);
      border-radius:999px;
      padding:5px 10px;
      font-size:12px;
      font-weight:850;
      margin-bottom:14px;
    }
    .catalog-card h3{font-size:20px;font-weight:850;margin-bottom:8px}
    .catalog-card p{font-size:14px;color:var(--muted);margin-bottom:16px}
    .trust-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:28px;
    }
    .trust-item{
      background:#fff;
      border:1px solid var(--line);
      border-radius:20px;
      padding:20px;
      display:flex;
      gap:14px;
      align-items:flex-start;
      box-shadow:var(--shadow-sm);
    }
    .trust-icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:var(--brand-soft);
      color:var(--brand-dark);
      font-size:19px;
      flex:0 0 auto;
    }
    .trust-item b{display:block;margin-bottom:4px}
    .trust-item span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .story-band{
      background:linear-gradient(135deg,#ffffff,#f0f8f3);
      border:1px solid var(--line);
      border-radius:34px;
      padding:40px;
      box-shadow:var(--shadow-sm);
      display:grid;
      grid-template-columns:1fr .85fr;
      gap:28px;
      align-items:center;
    }
    .story-panel{
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:22px;
      box-shadow:var(--shadow-sm);
    }
    .story-step{
      display:flex;
      gap:12px;
      padding:14px 0;
      border-bottom:1px dashed var(--line);
    }
    .story-step:last-child{border-bottom:0}
    .step-index{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:#17211c;
      color:#6ff0a7;
      font-size:12px;
      font-weight:900;
      flex:0 0 auto;
    }
    .testimonials{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      margin-top:30px;
    }
    .quote-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:26px;
      box-shadow:var(--shadow-sm);
    }
    .quote-card.featured{
      background:#17211c;
      color:#fff;
    }
    .quote-card p{color:var(--muted);margin:0 0 18px}
    .quote-card.featured p{color:rgba(255,255,255,.74)}
    .quote-meta{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:800;
    }
    .avatar{
      width:38px;height:38px;border-radius:50%;
      background:linear-gradient(135deg,var(--brand),var(--success));
      display:grid;place-items:center;
      color:#fff;
      font-weight:900;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:22px;
      margin-top:30px;
    }
    .news-list,.recommend-box{
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      box-shadow:var(--shadow-sm);
      padding:22px;
    }
    .news-link{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding:18px 0;
      border-bottom:1px solid var(--line);
    }
    .news-link:last-child{border-bottom:0}
    .news-link strong{font-size:17px}
    .news-link p{margin:6px 0 0;color:var(--muted);font-size:14px}
    .news-link time{
      color:var(--weak);
      white-space:nowrap;
      font-size:13px;
      padding-top:2px;
    }
    .recommend-box{
      background:linear-gradient(180deg,#fff,var(--brand-soft));
    }
    .rec-list{padding:0;margin:18px 0 0;list-style:none}
    .rec-list li{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 0;
      color:#2e3b35;
      border-bottom:1px dashed rgba(22,138,74,.18);
    }
    .rec-list li:last-child{border-bottom:0}
    .rec-list li::before{
      content:"✓";
      width:22px;height:22px;border-radius:8px;
      display:grid;place-items:center;
      background:#fff;
      color:var(--brand-dark);
      font-size:12px;
      font-weight:900;
    }
    .security-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      margin-top:30px;
    }
    .security-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:26px;
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
    }
    .security-card::after{
      content:"";
      position:absolute;
      right:22px;top:22px;
      width:54px;height:54px;border-radius:18px;
      background:var(--brand-soft);
      border:1px solid rgba(22,138,74,.14);
    }
    .security-card h3{font-weight:880;margin-bottom:10px}
    .security-card p{color:var(--muted);margin:0}
    .privacy-note{
      display:flex;
      gap:16px;
      align-items:flex-start;
      background:#fff;
      border:1px solid rgba(22,138,74,.20);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow-sm);
    }
    .privacy-note .lock{
      width:44px;height:44px;border-radius:16px;
      background:var(--brand-soft);
      color:var(--brand-dark);
      display:grid;place-items:center;
      font-size:20px;
      flex:0 0 auto;
    }
    .accordion{margin-top:30px}
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:20px!important;
      overflow:hidden;
      margin-bottom:12px;
      box-shadow:var(--shadow-sm);
      background:#fff;
    }
    .accordion-button{
      font-weight:820;
      padding:20px 22px;
      box-shadow:none!important;
      color:var(--ink);
      background:#fff;
    }
    .accordion-button:not(.collapsed){
      background:var(--brand-soft);
      color:var(--brand-dark);
    }
    .accordion-button:focus{box-shadow:0 0 0 .2rem rgba(37,183,104,.16)!important}
    .accordion-body{
      color:var(--muted);
      padding:0 22px 22px;
    }
    .cta-panel{
      border-radius:34px;
      background:
        radial-gradient(circle at 80% 20%,rgba(111,240,167,.18),transparent 30%),
        linear-gradient(135deg,#17211c,#24372e);
      color:#fff;
      padding:42px;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta-panel p{color:rgba(255,255,255,.72);margin:10px 0 0;max-width:700px}
    .footer{
      padding:46px 0 30px;
      border-top:1px solid var(--line);
      background:#fff;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:start;
    }
    .footer-name{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer p{color:var(--muted);margin:0;max-width:620px;font-size:14px}
    .footer-links{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .footer-links a{
      color:#314038;
      font-weight:750;
      font-size:14px;
      padding:7px 0;
    }
    .copyright{
      margin-top:28px;
      padding-top:18px;
      border-top:1px solid var(--line);
      color:var(--weak);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .modal-content{
      border:0;
      border-radius:28px;
      box-shadow:0 28px 90px rgba(18,24,21,.24);
      overflow:hidden;
    }
    .modal-header{
      border:0;
      padding:26px 28px 8px;
    }
    .modal-body{padding:8px 28px 28px}
    .modal-title{font-weight:900}
    .form-label{font-weight:780;color:#2d3b35}
    .form-control,.form-select{
      border-radius:14px;
      border:1px solid var(--line);
      padding:12px 14px;
      box-shadow:none!important;
    }
    .form-control:focus,.form-select:focus{
      border-color:rgba(22,138,74,.48);
      box-shadow:0 0 0 .2rem rgba(37,183,104,.13)!important;
    }
    .success-alert{
      display:none;
      border:1px solid rgba(37,183,104,.24);
      background:var(--brand-soft);
      color:var(--brand-dark);
      border-radius:16px;
      padding:12px 14px;
      margin-top:14px;
      font-weight:750;
    }
    @media (max-width:1199px){
      .download-stage{min-height:430px}
      .hero-content{padding:40px}
      .stats-grid,.trust-strip{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:991px){
      .section{padding:68px 0}
      .download-stage{border-left:0;border-top:1px solid var(--line);min-height:420px}
      .question-grid,.feature-bento,.story-band,.testimonials,.news-layout,.security-grid,.cta-panel{
        grid-template-columns:1fr;
      }
      .catalog-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .brand-logo{max-width:300px;overflow:hidden;text-overflow:ellipsis}
    }
    @media (max-width:767px){
      .site-container{padding:0 16px}
      .navbar{padding:12px 0}
      .brand-logo{font-size:16px;max-width:260px}
      .hero{padding:38px 0 28px}
      .hero-shell{border-radius:26px}
      .hero-content{padding:28px 22px}
      .hero h1{font-size:38px}
      .hero-intro{font-size:15px}
      .hero-actions .btn{width:100%;justify-content:center}
      .download-stage{padding:22px;min-height:390px}
      .whitepaper-cover{transform:none}
      .floating-note{position:relative;right:auto;bottom:auto;margin:18px auto 0}
      .question-list,.catalog-grid,.stats-grid,.trust-strip{grid-template-columns:1fr}
      .section-title{font-size:30px}
      .stats-band,.story-band,.cta-panel{border-radius:26px;padding:26px 22px}
      .news-link{display:block}
      .news-link time{display:block;margin-top:8px}
      .modal-dialog{margin:10px}
      .modal-content{border-radius:24px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .brand-logo{max-width:220px}
      .hero h1{font-size:34px}
      .section{padding:58px 0}
      .question-main,.question-side,.solution-card,.security-card,.quote-card,.news-list,.recommend-box{padding:22px}
      .cover-title{font-size:19px}
    }

/* roulang page: category1 */
:root{
      --color-primary:#15803d;
      --color-primary-dark:#116632;
      --color-primary-soft:#e8f7ee;
      --color-success:#22c55e;
      --color-ink:#111827;
      --color-text:#263238;
      --color-muted:#667085;
      --color-soft:#f6f8f7;
      --color-card:#ffffff;
      --color-line:#e3e8e4;
      --color-dark:#17201a;
      --shadow-sm:0 10px 30px rgba(17,24,39,.06);
      --shadow-md:0 18px 48px rgba(17,24,39,.10);
      --shadow-green:0 16px 36px rgba(21,128,61,.18);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --container:1160px;
      --nav-height:76px;
      --ease:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 8% 2%, rgba(34,197,94,.08), transparent 32%),
        linear-gradient(180deg,#fff 0%,#f8faf9 42%,#fff 100%);
      line-height:1.7;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--color-primary)}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(34,197,94,.28);
      outline-offset:3px;
      border-radius:10px;
    }
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:84px 0;
      position:relative;
    }
    .section-tight{padding:56px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(21,128,61,.14);
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--color-success);
      box-shadow:0 0 0 5px rgba(34,197,94,.14);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:28px;
      align-items:end;
      margin-bottom:28px;
    }
    .section-title{
      color:var(--color-ink);
      font-weight:850;
      letter-spacing:-.04em;
      line-height:1.18;
      margin:14px 0 0;
      font-size:clamp(28px,3.2vw,44px);
    }
    .section-desc{
      max-width:520px;
      color:var(--color-muted);
      margin:0;
      font-size:16px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      height:var(--nav-height);
      display:flex;
      align-items:center;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(227,232,228,.82);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--color-ink);
      font-weight:900;
      letter-spacing:-.03em;
      white-space:nowrap;
    }
    .brand-mark{
      width:18px;
      height:18px;
      border-radius:6px;
      display:inline-block;
      background:
        linear-gradient(135deg,var(--color-primary),var(--color-success));
      box-shadow:0 0 0 6px rgba(34,197,94,.10);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:6px;
      height:6px;
      border:1px solid rgba(255,255,255,.9);
      right:3px;
      top:3px;
      border-radius:50%;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:4px;
      padding:6px;
      border:1px solid rgba(227,232,228,.9);
      border-radius:999px;
      background:#fff;
      box-shadow:0 8px 24px rgba(17,24,39,.04);
    }
    .main-nav a{
      padding:9px 14px;
      border-radius:999px;
      color:#475467;
      font-size:14px;
      font-weight:700;
      position:relative;
    }
    .main-nav a:hover{
      color:var(--color-primary-dark);
      background:rgba(21,128,61,.06);
    }
    .main-nav a.active{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .btn{
      border-radius:999px;
      padding:11px 18px;
      font-weight:800;
      border-width:1px;
      transition:var(--ease);
      letter-spacing:-.01em;
    }
    .btn-primary-custom{
      background:var(--color-primary);
      border-color:var(--color-primary);
      color:#fff;
      box-shadow:var(--shadow-green);
    }
    .btn-primary-custom:hover,.btn-primary-custom:active{
      background:var(--color-primary-dark)!important;
      border-color:var(--color-primary-dark)!important;
      color:#fff!important;
      transform:translateY(-2px);
      box-shadow:0 20px 42px rgba(21,128,61,.24);
    }
    .btn-outline-custom{
      color:var(--color-ink);
      border-color:var(--color-line);
      background:#fff;
    }
    .btn-outline-custom:hover{
      color:var(--color-primary-dark);
      border-color:rgba(21,128,61,.32);
      background:var(--color-primary-soft);
      transform:translateY(-2px);
    }
    .mobile-menu-btn{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--color-line);
      background:#fff;
      align-items:center;
      justify-content:center;
      color:var(--color-ink);
    }
    .menu-lines,.menu-lines::before,.menu-lines::after{
      width:18px;
      height:2px;
      border-radius:2px;
      background:currentColor;
      display:block;
      content:"";
      position:relative;
    }
    .menu-lines::before{position:absolute;top:-6px}
    .menu-lines::after{position:absolute;top:6px}

    .offcanvas{
      border-radius:24px 0 0 24px;
      border:0;
    }
    .offcanvas-header{
      border-bottom:1px solid var(--color-line);
      padding:22px;
    }
    .offcanvas-body{
      padding:18px 22px 28px;
    }
    .mobile-nav-list{
      display:grid;
      gap:10px;
    }
    .mobile-nav-list a{
      padding:14px 16px;
      border-radius:16px;
      color:var(--color-text);
      background:#f8faf9;
      font-weight:800;
      border:1px solid transparent;
    }
    .mobile-nav-list a.active,.mobile-nav-list a:hover{
      color:var(--color-primary-dark);
      border-color:rgba(21,128,61,.18);
      background:var(--color-primary-soft);
    }

    .hero{
      padding:58px 0 72px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      gap:42px;
      align-items:center;
    }
    .hero-copy h1{
      margin:18px 0 18px;
      color:var(--color-ink);
      font-size:clamp(34px,5vw,64px);
      line-height:1.05;
      font-weight:950;
      letter-spacing:-.06em;
    }
    .hero-copy p{
      max-width:650px;
      color:var(--color-muted);
      font-size:18px;
      margin:0 0 26px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-bottom:26px;
    }
    .hero-note{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 16px;
      max-width:560px;
      border-radius:18px;
      border:1px solid var(--color-line);
      background:rgba(255,255,255,.7);
      color:#52615a;
      font-size:14px;
    }
    .hero-note strong{color:var(--color-primary-dark)}
    .stage{
      border:1px solid rgba(227,232,228,.95);
      background:
        linear-gradient(180deg,#fff 0%,#f7fbf8 100%);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-md);
      padding:24px;
      position:relative;
      isolation:isolate;
    }
    .stage::before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px dashed rgba(21,128,61,.20);
      border-radius:22px;
      pointer-events:none;
      z-index:-1;
    }
    .stage-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .stage-title{
      font-weight:900;
      color:var(--color-ink);
      letter-spacing:-.03em;
    }
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      background:#102018;
      color:#d8ffe4;
      padding:8px 11px;
      font-size:12px;
      font-weight:800;
    }
    .status-pill span{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--color-success);
      box-shadow:0 0 0 5px rgba(34,197,94,.18);
    }
    .progress-layout{
      display:grid;
      grid-template-columns:170px 1fr;
      gap:18px;
      align-items:center;
    }
    .progress-ring{
      width:164px;
      height:164px;
      border-radius:50%;
      background:
        conic-gradient(var(--color-success) 0 78%, #e7eee9 78% 100%);
      display:grid;
      place-items:center;
      position:relative;
      margin:auto;
    }
    .progress-ring::after{
      content:"";
      position:absolute;
      width:126px;
      height:126px;
      border-radius:50%;
      background:#fff;
      box-shadow:inset 0 0 0 1px rgba(227,232,228,.9);
    }
    .progress-ring .value{
      position:relative;
      z-index:1;
      text-align:center;
    }
    .progress-ring strong{
      display:block;
      font-size:36px;
      line-height:1;
      color:var(--color-primary-dark);
      font-weight:950;
      letter-spacing:-.05em;
    }
    .progress-ring small{
      color:var(--color-muted);
      font-weight:800;
    }
    .tier-list{
      display:grid;
      gap:10px;
    }
    .tier{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid var(--color-line);
      background:#fff;
    }
    .tier b{
      color:var(--color-ink);
      font-size:14px;
    }
    .tier span{
      color:var(--color-muted);
      font-size:13px;
    }
    .tier.active{
      border-color:rgba(21,128,61,.28);
      background:var(--color-primary-soft);
      box-shadow:0 12px 24px rgba(21,128,61,.08);
    }
    .stage-lines{
      margin-top:18px;
      display:grid;
      gap:9px;
    }
    .stage-line{
      height:10px;
      border-radius:999px;
      background:#edf2ef;
      overflow:hidden;
    }
    .stage-line i{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--color-primary),var(--color-success));
    }

    .question-band{
      background:var(--color-dark);
      color:#fff;
      border-radius:var(--radius-lg);
      padding:28px;
      box-shadow:var(--shadow-md);
      position:relative;
      overflow:hidden;
    }
    .question-band::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:36px 36px;
      opacity:.55;
      pointer-events:none;
    }
    .question-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:center;
    }
    .question-band h2{
      font-size:clamp(26px,3vw,40px);
      font-weight:950;
      letter-spacing:-.05em;
      line-height:1.18;
      margin:0;
    }
    .question-items{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .question-item{
      padding:14px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
      color:#d9e5dd;
      font-size:14px;
    }
    .question-item b{
      display:block;
      color:#fff;
      margin-bottom:3px;
    }

    .filter-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:22px 0 30px;
    }
    .filter-tag{
      border:1px solid var(--color-line);
      background:#fff;
      border-radius:999px;
      padding:10px 14px;
      color:#52615a;
      font-size:14px;
      font-weight:800;
      cursor:pointer;
      transition:var(--ease);
    }
    .filter-tag:hover,.filter-tag.active{
      color:var(--color-primary-dark);
      border-color:rgba(21,128,61,.28);
      background:var(--color-primary-soft);
      transform:translateY(-2px);
    }

    .card-mosaic{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .entry-card{
      background:var(--color-card);
      border:1px solid var(--color-line);
      border-radius:var(--radius-md);
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
      min-height:210px;
    }
    .entry-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
      border-color:rgba(21,128,61,.22);
    }
    .entry-card.large{
      min-height:438px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 86% 16%, rgba(34,197,94,.16), transparent 30%),
        #fff;
    }
    .entry-card.large::after{
      content:"";
      position:absolute;
      width:150px;
      height:150px;
      border:1px solid rgba(21,128,61,.12);
      border-radius:50%;
      right:-45px;
      bottom:-45px;
    }
    .entry-stack{
      display:grid;
      gap:18px;
    }
    .card-icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      font-weight:950;
      margin-bottom:16px;
    }
    .entry-card h3{
      margin:0 0 10px;
      color:var(--color-ink);
      font-size:24px;
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .entry-card p{
      color:var(--color-muted);
      margin:0 0 18px;
      font-size:15px;
    }
    .tag-group{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .mini-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:7px 10px;
      background:#f2f5f3;
      color:#52615a;
      font-size:12px;
      font-weight:800;
    }
    .mini-badge.success{
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
    }
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-dark);
      font-weight:900;
      font-size:14px;
    }
    .card-link:hover{
      gap:12px;
      color:var(--color-primary);
    }

    .data-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .data-card{
      border:1px solid var(--color-line);
      border-radius:var(--radius-md);
      background:#fff;
      padding:20px;
      box-shadow:var(--shadow-sm);
    }
    .data-card strong{
      display:block;
      color:var(--color-primary-dark);
      font-size:34px;
      line-height:1;
      letter-spacing:-.05em;
      font-weight:950;
      margin-bottom:8px;
    }
    .data-card span{
      color:var(--color-muted);
      font-size:14px;
      font-weight:700;
    }
    .data-card .tick{
      display:inline-flex;
      width:22px;
      height:22px;
      border-radius:50%;
      background:var(--color-success);
      color:#fff;
      align-items:center;
      justify-content:center;
      margin-bottom:13px;
      font-size:13px;
      font-weight:900;
    }

    .form-panel{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:center;
      padding:30px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,#f7fbf8 0%,#fff 58%);
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-md);
    }
    .panel-steps{
      display:grid;
      gap:12px;
    }
    .panel-step{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--color-line);
    }
    .panel-step i{
      width:28px;
      height:28px;
      flex:0 0 auto;
      border-radius:10px;
      display:grid;
      place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      font-style:normal;
      font-weight:950;
      font-size:13px;
    }
    .panel-step b{
      color:var(--color-ink);
      display:block;
      margin-bottom:2px;
    }
    .panel-step span{
      color:var(--color-muted);
      font-size:14px;
    }

    .privacy-box{
      display:flex;
      gap:16px;
      align-items:flex-start;
      padding:20px 22px;
      border:1px solid rgba(21,128,61,.18);
      border-radius:var(--radius-md);
      background:var(--color-primary-soft);
    }
    .privacy-box .lock{
      width:38px;
      height:38px;
      border-radius:14px;
      background:#fff;
      color:var(--color-primary-dark);
      display:grid;
      place-items:center;
      font-weight:950;
      box-shadow:0 8px 18px rgba(21,128,61,.10);
      flex:0 0 auto;
    }
    .privacy-box h2{
      margin:0 0 5px;
      font-size:20px;
      font-weight:950;
      color:var(--color-ink);
      letter-spacing:-.03em;
    }
    .privacy-box p{
      margin:0;
      color:#456052;
      font-size:15px;
    }

    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--color-line)!important;
      border-radius:18px!important;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
      background:#fff;
    }
    .accordion-button{
      padding:18px 20px;
      font-weight:900;
      color:var(--color-ink);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
    }
    .accordion-button::after{
      width:18px;
      height:18px;
      background-size:18px;
      filter:saturate(.7);
    }
    .accordion-body{
      color:var(--color-muted);
      padding:0 20px 20px;
      font-size:15px;
    }

    .cta-block{
      border-radius:var(--radius-lg);
      padding:34px;
      background:
        radial-gradient(circle at 90% 18%, rgba(34,197,94,.22), transparent 26%),
        var(--color-dark);
      color:#fff;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      overflow:hidden;
      position:relative;
    }
    .cta-block::before{
      content:"";
      position:absolute;
      inset:14px;
      border:1px solid rgba(255,255,255,.10);
      border-radius:22px;
      pointer-events:none;
    }
    .cta-block h2{
      position:relative;
      margin:0 0 8px;
      font-size:clamp(26px,3vw,42px);
      font-weight:950;
      letter-spacing:-.05em;
      line-height:1.14;
    }
    .cta-block p{
      position:relative;
      margin:0;
      color:#d8e5dc;
      max-width:620px;
    }
    .cta-block .btn{
      position:relative;
      white-space:nowrap;
    }

    .footer{
      padding:48px 0 26px;
      background:#fff;
      border-top:1px solid var(--color-line);
      margin-top:34px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:38px;
      align-items:start;
      padding-bottom:28px;
    }
    .footer-name{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--color-ink);
      font-weight:950;
      margin-bottom:12px;
      letter-spacing:-.03em;
    }
    .footer p{
      max-width:580px;
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:9px 12px;
      border:1px solid var(--color-line);
      border-radius:999px;
      color:#52615a;
      font-size:14px;
      font-weight:800;
      background:#fff;
    }
    .footer-links a:hover{
      color:var(--color-primary-dark);
      border-color:rgba(21,128,61,.28);
      background:var(--color-primary-soft);
    }
    .copyright{
      border-top:1px solid var(--color-line);
      padding-top:18px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:#7a867f;
      font-size:13px;
    }

    .modal-content{
      border:0;
      border-radius:24px;
      box-shadow:0 28px 80px rgba(17,24,39,.22);
      overflow:hidden;
    }
    .modal-header{
      padding:22px 24px;
      border-bottom:1px solid var(--color-line);
      background:#fbfdfc;
    }
    .modal-title{
      color:var(--color-ink);
      font-weight:950;
      letter-spacing:-.03em;
    }
    .modal-body{padding:24px}
    .form-label{
      color:var(--color-ink);
      font-weight:850;
      font-size:14px;
      margin-bottom:8px;
    }
    .form-control{
      border-radius:14px;
      border:1px solid var(--color-line);
      padding:12px 14px;
      color:var(--color-ink);
      background:#fff;
      transition:var(--ease);
    }
    .form-control:focus{
      border-color:rgba(21,128,61,.45);
      box-shadow:0 0 0 4px rgba(34,197,94,.12);
    }
    .form-text{
      color:var(--color-muted);
      font-size:13px;
    }
    .alert-success-custom{
      display:none;
      border:1px solid rgba(34,197,94,.24);
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      border-radius:16px;
      padding:12px 14px;
      font-weight:800;
      margin-top:14px;
    }

    @media (max-width:1199px){
      .hero-grid{grid-template-columns:1fr .9fr;gap:28px}
      .progress-layout{grid-template-columns:1fr}
      .progress-ring{width:148px;height:148px}
      .progress-ring::after{width:112px;height:112px}
      .data-strip{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:991px){
      :root{--nav-height:68px}
      .main-nav,.nav-actions .desktop-cta{display:none}
      .mobile-menu-btn{display:flex}
      .hero{padding:42px 0 58px}
      .hero-grid,.question-grid,.card-mosaic,.form-panel,.cta-block{
        grid-template-columns:1fr;
      }
      .stage{max-width:620px}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:767px){
      .site-container{width:min(100% - 28px,var(--container))}
      .hero-copy h1{font-size:38px}
      .hero-copy p{font-size:16px}
      .hero-actions .btn{width:100%;justify-content:center}
      .question-items{grid-template-columns:1fr}
      .filter-row{
        flex-wrap:nowrap;
        overflow-x:auto;
        padding-bottom:8px;
        margin-left:-2px;
        scrollbar-width:none;
      }
      .filter-row::-webkit-scrollbar{display:none}
      .filter-tag{white-space:nowrap}
      .data-strip{grid-template-columns:1fr}
      .entry-card.large{min-height:auto}
      .cta-block{padding:28px 22px}
      .cta-block .btn{width:100%;justify-content:center}
      .privacy-box{display:block}
      .privacy-box .lock{margin-bottom:12px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
      .modal-dialog{
        margin:0;
        min-height:100%;
        display:flex;
        align-items:flex-end;
      }
      .modal-content{
        border-radius:24px 24px 0 0;
      }
    }
    @media (max-width:520px){
      .brand span:last-child{
        max-width:220px;
        overflow:hidden;
        text-overflow:ellipsis;
      }
      .stage{padding:18px}
      .tier{display:block}
      .tier span{display:block;margin-top:4px}
      .section{padding:52px 0}
      .question-band,.form-panel{padding:22px}
    }

/* roulang page: category2 */
:root {
      --color-primary: #168a4a;
      --color-primary-dark: #0f6f3b;
      --color-success: #22c55e;
      --color-ink: #151916;
      --color-text: #303832;
      --color-muted: #6f7a72;
      --color-soft: #f6f8f5;
      --color-panel: #ffffff;
      --color-line: #dfe7df;
      --color-deep: #17201a;
      --color-deep-2: #202922;
      --shadow-sm: 0 10px 28px rgba(21, 25, 22, .07);
      --shadow-md: 0 18px 48px rgba(21, 25, 22, .11);
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container: 1180px;
      --nav-height: 76px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color: var(--color-text);
      background:
        linear-gradient(180deg, #ffffff 0%, #f7faf6 48%, #ffffff 100%);
      line-height: 1.75;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(34, 197, 94, .28);
      outline-offset: 3px;
    }

    .site-container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, .9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(223, 231, 223, .82);
    }

    .site-nav {
      min-height: var(--nav-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      color: var(--color-ink);
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-mark {
      width: 13px;
      height: 13px;
      display: inline-block;
      border: 2px solid var(--color-primary);
      border-radius: 50%;
      box-shadow: 0 0 0 5px rgba(22, 138, 74, .08);
      flex: 0 0 auto;
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--color-success);
      right: -5px;
      bottom: -3px;
    }

    .desktop-links {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .desktop-links a,
    .offcanvas-nav a {
      color: var(--color-muted);
      font-weight: 650;
      padding: 10px 14px;
      border-radius: 999px;
      position: relative;
    }

    .desktop-links a:hover,
    .offcanvas-nav a:hover {
      color: var(--color-ink);
      background: var(--color-soft);
    }

    .desktop-links a.active {
      color: var(--color-primary-dark);
      background: rgba(22, 138, 74, .09);
    }

    .desktop-links a.active::after {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-success);
      position: absolute;
      left: 50%;
      bottom: 3px;
      transform: translateX(-50%);
    }

    .nav-cta,
    .btn-primary-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      border-radius: 999px;
      padding: 12px 20px;
      background: var(--color-primary);
      color: #fff;
      font-weight: 750;
      box-shadow: 0 12px 28px rgba(22, 138, 74, .22);
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .nav-cta:hover,
    .btn-primary-custom:hover {
      color: #fff;
      background: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(22, 138, 74, .28);
    }

    .btn-secondary-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 12px 20px;
      border: 1px solid var(--color-line);
      color: var(--color-ink);
      background: #fff;
      font-weight: 750;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .btn-secondary-custom:hover {
      border-color: rgba(22, 138, 74, .35);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
      color: var(--color-primary-dark);
    }

    .menu-button {
      border: 1px solid var(--color-line);
      background: #fff;
      border-radius: 999px;
      width: 44px;
      height: 44px;
      display: none;
      align-items: center;
      justify-content: center;
      color: var(--color-ink);
    }

    .menu-lines,
    .menu-lines::before,
    .menu-lines::after {
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      display: block;
      content: "";
      position: relative;
    }

    .menu-lines::before {
      position: absolute;
      top: -6px;
    }

    .menu-lines::after {
      position: absolute;
      top: 6px;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 84px 0;
    }

    .section.compact {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(22, 138, 74, .2);
      border-radius: 999px;
      color: var(--color-primary-dark);
      background: rgba(22, 138, 74, .07);
      font-size: 14px;
      font-weight: 750;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-success);
      box-shadow: 0 0 0 5px rgba(34, 197, 94, .12);
    }

    .hero {
      padding: 58px 0 36px;
      background:
        linear-gradient(90deg, rgba(22, 138, 74, .06) 1px, transparent 1px),
        linear-gradient(180deg, #ffffff 0%, #f7faf6 100%);
      background-size: 58px 58px, auto;
      border-bottom: 1px solid var(--color-line);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
      gap: 42px;
      align-items: center;
    }

    .hero h1 {
      margin: 0;
      color: var(--color-ink);
      font-size: clamp(34px, 5vw, 62px);
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: 0;
    }

    .hero-summary {
      margin: 20px 0 0;
      color: var(--color-muted);
      font-size: 18px;
      max-width: 690px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .hero-mini {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 26px;
    }

    .status-pill,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      border: 1px solid var(--color-line);
      background: rgba(255, 255, 255, .88);
      color: var(--color-muted);
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 650;
      white-space: nowrap;
    }

    .status-pill strong {
      color: var(--color-primary-dark);
    }

    .coupon-stage {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid rgba(223, 231, 223, .9);
      box-shadow: var(--shadow-md);
      min-height: 430px;
    }

    .coupon-wall {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      height: 100%;
    }

    .coupon-card {
      border: 1px solid var(--color-line);
      border-radius: 18px;
      background:
        radial-gradient(circle at 18px 50%, transparent 0 9px, #fff 10px),
        linear-gradient(135deg, #ffffff 0%, #f4faf5 100%);
      padding: 18px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .coupon-card.large {
      grid-column: span 2;
      min-height: 188px;
      background:
        linear-gradient(90deg, rgba(22, 138, 74, .12), transparent 46%),
        #fff;
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 18px;
    }

    .coupon-card::after {
      content: "";
      position: absolute;
      inset: 12px;
      border: 1px dashed rgba(22, 138, 74, .18);
      border-radius: 14px;
      pointer-events: none;
    }

    .coupon-kicker {
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .coupon-title {
      font-size: 22px;
      line-height: 1.25;
      font-weight: 900;
      color: var(--color-ink);
      margin-bottom: 8px;
    }

    .coupon-card.large .coupon-title {
      font-size: 32px;
    }

    .coupon-desc {
      color: var(--color-muted);
      margin: 0;
      font-size: 15px;
    }

    .claim-button {
      position: relative;
      z-index: 1;
      border: 0;
      border-radius: 999px;
      padding: 12px 18px;
      background: var(--color-deep);
      color: #fff;
      font-weight: 800;
      white-space: nowrap;
    }

    .claim-button:hover {
      background: var(--color-primary-dark);
    }

    .floating-note {
      position: absolute;
      right: 18px;
      top: 18px;
      border-radius: 999px;
      background: var(--color-deep);
      color: #dff8e6;
      padding: 8px 12px;
      font-size: 13px;
      font-weight: 750;
      box-shadow: 0 14px 30px rgba(23, 32, 26, .18);
    }

    .intro-band {
      background: #fff;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 32px;
    }

    .section-head h2 {
      color: var(--color-ink);
      font-size: clamp(28px, 3vw, 42px);
      line-height: 1.18;
      font-weight: 900;
      margin: 0 0 12px;
    }

    .section-head p {
      color: var(--color-muted);
      font-size: 17px;
      margin: 0;
    }

    .question-strip {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
      align-items: stretch;
    }

    .question-main,
    .question-list,
    .compare-card,
    .side-panel,
    .privacy-box,
    .faq-wrap {
      border: 1px solid var(--color-line);
      background: var(--color-panel);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .question-main {
      padding: 30px;
      min-height: 240px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        linear-gradient(135deg, rgba(22, 138, 74, .1), transparent 48%),
        #fff;
    }

    .question-main h2 {
      color: var(--color-ink);
      font-size: 34px;
      line-height: 1.18;
      font-weight: 900;
      margin: 0 0 16px;
    }

    .question-main p {
      margin: 0;
      color: var(--color-muted);
    }

    .question-list {
      padding: 18px;
      display: grid;
      gap: 12px;
    }

    .question-item {
      padding: 16px;
      border-radius: 14px;
      border: 1px solid rgba(223, 231, 223, .86);
      background: #fbfdfb;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .question-item:hover {
      transform: translateY(-3px);
      border-color: rgba(22, 138, 74, .28);
      box-shadow: var(--shadow-sm);
    }

    .question-item strong {
      display: block;
      color: var(--color-ink);
      margin-bottom: 4px;
    }

    .question-item span {
      color: var(--color-muted);
      font-size: 14px;
    }

    .content-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      align-items: start;
    }

    .filter-row {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 22px;
    }

    .filter-row .tag {
      cursor: default;
      background: #fff;
    }

    .filter-row .tag.active {
      border-color: rgba(22, 138, 74, .35);
      background: rgba(22, 138, 74, .09);
      color: var(--color-primary-dark);
    }

    .compare-list {
      display: grid;
      gap: 16px;
    }

    .compare-card {
      padding: 22px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      position: relative;
      overflow: hidden;
    }

    .compare-card:hover {
      transform: translateY(-3px);
      border-color: rgba(22, 138, 74, .3);
      box-shadow: var(--shadow-md);
    }

    .compare-card.featured {
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(22, 138, 74, .12), transparent 42%),
        #fff;
    }

    .compare-card.featured::before,
    .side-panel::before {
      content: "";
      position: absolute;
      left: 20px;
      right: 20px;
      top: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--color-primary), rgba(34, 197, 94, .25));
      border-radius: 999px;
    }

    .card-topline {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 12px;
    }

    .priority {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 28px;
      border-radius: 999px;
      background: var(--color-deep);
      color: #e7f8eb;
      font-weight: 850;
      font-size: 13px;
    }

    .compare-card h3 {
      color: var(--color-ink);
      font-size: 22px;
      font-weight: 900;
      margin: 0 0 8px;
    }

    .compare-card p {
      margin: 0 0 16px;
      color: var(--color-muted);
    }

    .check-list {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--color-text);
    }

    .check-list li::before {
      content: "✓";
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(34, 197, 94, .14);
      color: var(--color-primary-dark);
      font-weight: 900;
      line-height: 1;
      margin-top: 2px;
    }

    .side-panel {
      position: sticky;
      top: 98px;
      padding: 24px;
      overflow: hidden;
    }

    .side-panel h2 {
      color: var(--color-ink);
      font-size: 24px;
      font-weight: 900;
      margin: 0 0 10px;
    }

    .side-panel p {
      color: var(--color-muted);
      margin-bottom: 18px;
    }

    .form-control,
    .form-select {
      border-radius: 14px;
      border-color: var(--color-line);
      padding: 12px 14px;
      color: var(--color-ink);
      background-color: #fff;
    }

    .form-control:focus,
    .form-select:focus {
      border-color: rgba(22, 138, 74, .58);
      box-shadow: 0 0 0 .22rem rgba(34, 197, 94, .14);
    }

    .form-label {
      color: var(--color-ink);
      font-weight: 750;
      margin-bottom: 8px;
    }

    .data-band {
      background: var(--color-deep);
      color: #edf7ef;
      position: relative;
    }

    .data-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
      background-size: 54px 54px;
      pointer-events: none;
    }

    .data-band .site-container {
      position: relative;
      z-index: 1;
    }

    .data-band .section-head h2 {
      color: #fff;
    }

    .data-band .section-head p {
      color: rgba(237, 247, 239, .72);
    }

    .data-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .data-card {
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: var(--radius-md);
      padding: 24px;
      background: rgba(255, 255, 255, .06);
      backdrop-filter: blur(10px);
    }

    .data-card strong {
      display: block;
      color: #7df2a3;
      font-size: 34px;
      line-height: 1;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .data-card span {
      color: rgba(237, 247, 239, .78);
      font-size: 14px;
    }

    .cta-line {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-line);
      background:
        linear-gradient(135deg, rgba(22, 138, 74, .1), transparent 50%),
        #fff;
      box-shadow: var(--shadow-sm);
    }

    .cta-line h2 {
      color: var(--color-ink);
      font-size: 30px;
      line-height: 1.2;
      font-weight: 900;
      margin: 0 0 8px;
    }

    .cta-line p {
      color: var(--color-muted);
      margin: 0;
    }

    .privacy-box {
      padding: 24px;
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 16px;
      align-items: start;
      background: #fbfdfb;
    }

    .privacy-icon {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: rgba(22, 138, 74, .1);
      color: var(--color-primary-dark);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 950;
      font-size: 20px;
    }

    .privacy-box h2 {
      font-size: 24px;
      line-height: 1.25;
      color: var(--color-ink);
      font-weight: 900;
      margin: 0 0 8px;
    }

    .privacy-box p {
      color: var(--color-muted);
      margin: 0;
    }

    .faq-wrap {
      padding: 16px;
    }

    .accordion-item {
      border: 0;
      border-bottom: 1px solid var(--color-line);
      background: transparent;
    }

    .accordion-item:last-child {
      border-bottom: 0;
    }

    .accordion-button {
      color: var(--color-ink);
      font-weight: 850;
      padding: 18px 10px;
      background: transparent;
      border-radius: 12px !important;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--color-primary-dark);
      background: rgba(22, 138, 74, .07);
    }

    .accordion-button:focus {
      box-shadow: none;
      outline: 3px solid rgba(34, 197, 94, .18);
      outline-offset: 2px;
    }

    .accordion-body {
      color: var(--color-muted);
      padding: 4px 10px 18px;
    }

    .footer {
      padding: 52px 0 28px;
      background: #111713;
      color: rgba(255, 255, 255, .74);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 38px;
      align-items: start;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-name {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer p {
      max-width: 650px;
      margin: 0;
      color: rgba(255, 255, 255, .68);
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .76);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 999px;
      padding: 9px 13px;
      font-weight: 650;
    }

    .footer-links a:hover {
      color: #fff;
      border-color: rgba(125, 242, 163, .42);
      background: rgba(125, 242, 163, .08);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      color: rgba(255, 255, 255, .54);
      font-size: 14px;
    }

    .offcanvas {
      border-radius: 22px 0 0 22px;
    }

    .offcanvas-header {
      border-bottom: 1px solid var(--color-line);
      padding: 22px;
    }

    .offcanvas-body {
      padding: 20px 22px 28px;
    }

    .offcanvas-nav {
      display: grid;
      gap: 8px;
    }

    .offcanvas-nav a.active {
      color: var(--color-primary-dark);
      background: rgba(22, 138, 74, .09);
    }

    .modal-content {
      border: 0;
      border-radius: 24px;
      box-shadow: 0 24px 70px rgba(21, 25, 22, .2);
    }

    .modal-header {
      border-bottom: 1px solid var(--color-line);
      padding: 22px 24px;
    }

    .modal-title {
      color: var(--color-ink);
      font-weight: 900;
    }

    .modal-body {
      padding: 24px;
    }

    .alert-success-custom {
      display: none;
      border: 1px solid rgba(34, 197, 94, .24);
      background: rgba(34, 197, 94, .1);
      color: var(--color-primary-dark);
      border-radius: 14px;
      padding: 12px 14px;
      font-weight: 750;
      margin-top: 14px;
    }

    @media (max-width: 1199.98px) {
      .hero-grid {
        grid-template-columns: 1fr .9fr;
        gap: 30px;
      }

      .coupon-stage {
        min-height: 390px;
      }

      .content-grid {
        grid-template-columns: minmax(0, 1fr) 300px;
      }
    }

    @media (max-width: 991.98px) {
      .desktop-links,
      .nav-cta {
        display: none;
      }

      .menu-button {
        display: inline-flex;
      }

      .hero-grid,
      .question-strip,
      .content-grid,
      .cta-line {
        grid-template-columns: 1fr;
      }

      .side-panel {
        position: static;
      }

      .data-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 767.98px) {
      :root {
        --nav-height: 66px;
      }

      .site-container {
        width: min(100% - 28px, var(--container));
      }

      .section {
        padding: 56px 0;
      }

      .section.compact {
        padding: 44px 0;
      }

      .hero {
        padding: 38px 0 28px;
      }

      .hero-summary {
        font-size: 16px;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn-primary-custom,
      .btn-secondary-custom {
        width: 100%;
      }

      .coupon-stage {
        padding: 16px;
        min-height: auto;
      }

      .coupon-wall {
        grid-template-columns: 1fr;
      }

      .coupon-card.large {
        grid-column: span 1;
        grid-template-columns: 1fr;
      }

      .coupon-card.large .coupon-title {
        font-size: 25px;
      }

      .floating-note {
        position: static;
        display: inline-flex;
        margin-bottom: 12px;
      }

      .question-main,
      .compare-card.featured,
      .cta-line {
        padding: 22px;
      }

      .question-main h2 {
        font-size: 27px;
      }

      .filter-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 8px;
        margin-inline: -2px;
      }

      .filter-row .tag {
        flex: 0 0 auto;
      }

      .data-grid {
        grid-template-columns: 1fr;
      }

      .privacy-box {
        grid-template-columns: 1fr;
      }

      .copyright {
        flex-direction: column;
        gap: 8px;
      }

      .brand span:last-child {
        max-width: 72vw;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .modal-dialog {
        margin: .5rem;
        min-height: calc(100% - 1rem);
        display: flex;
        align-items: flex-end;
      }

      .modal-content {
        border-radius: 24px 24px 18px 18px;
      }
    }

    @media (max-width: 520px) {
      .hero h1 {
        font-size: 32px;
      }

      .section-head h2,
      .cta-line h2 {
        font-size: 26px;
      }

      .coupon-title {
        font-size: 20px;
      }

      .card-topline {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
      }
    }