/* roulang page: index */
:root{
  --primary:#2F9E44;
  --primary-dark:#1B7A33;
  --accent:#F76707;
  --accent-dark:#D9550D;
  --dark:#161A1D;
  --light:#F7F5F0;
  --white:#FFFFFF;
  --text:#1F2328;
  --text-secondary:#5D666F;
  --border:#E8E6E1;
  --shadow-sm:0 2px 8px rgba(22,26,29,0.06);
  --shadow-md:0 8px 24px rgba(22,26,29,0.12);
  --radius:10px;
  --radius-btn:8px;
  --container:1200px;
  --space-section:88px;
  --font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--light);color:var(--text);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(47,158,68,.55);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:background .25s,color .25s,box-shadow .25s,transform .25s;line-height:1;white-space:nowrap}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--shadow-md)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-outline-dark{background:transparent;border-color:var(--border);color:var(--text)}
.btn-outline-dark:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:var(--dark);border-bottom:1px solid rgba(255,255,255,.06)}
.site-header.scrolled{background:rgba(22,26,29,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:20px;flex-shrink:0}
.logo-icon{width:34px;height:34px;border-radius:8px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;transform:rotate(-4deg)}
.logo:hover .logo-icon{transform:rotate(0deg)}
.main-nav{display:flex;align-items:center;gap:22px}
.main-nav a{color:rgba(255,255,255,.72);font-size:15px;font-weight:500;padding:6px 2px;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.main-nav a:hover{color:#fff}
.main-nav a.active{color:#fff;border-bottom-color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{width:220px;height:38px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);color:#fff;padding:0 14px;font-size:14px;transition:background .2s,border-color .2s}
.search-box::placeholder{color:rgba(255,255,255,.45)}
.search-box:focus{background:#fff;color:var(--text);border-color:transparent;outline:none}
.header-login{color:rgba(255,255,255,.8);font-size:14px;font-weight:500;transition:color .2s}
.header-login:hover{color:var(--primary)}
.menu-toggle{display:none;background:transparent;border:0;color:#fff;font-size:22px;cursor:pointer;padding:6px;border-radius:6px}
.menu-toggle:hover{color:var(--primary)}
.mobile-nav{display:none;background:var(--dark);padding:12px 16px 20px;border-top:1px solid rgba(255,255,255,.06)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;color:rgba(255,255,255,.78);padding:12px 8px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a:hover{color:#fff;background:rgba(255,255,255,.04)}
@media(max-width:1024px){
  .main-nav{display:none}
  .menu-toggle{display:inline-flex}
}
@media(max-width:640px){
  .header-inner{height:60px}
  .search-box,.header-login{display:none}
}

/* ===== Hero ===== */
.hero{background:linear-gradient(100deg,rgba(22,26,29,.92) 0%,rgba(22,26,29,.75) 50%,rgba(22,26,29,.88) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;min-height:640px;display:flex;align-items:center}
.hero-inner{display:flex;align-items:center;gap:56px;padding:88px 0}
.hero-copy{flex:1;max-width:620px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.7);background:rgba(47,158,68,.18);border:1px solid rgba(47,158,68,.4);padding:6px 14px;border-radius:999px;margin-bottom:24px}
.hero h1{font-size:44px;line-height:1.35;font-weight:800;color:#fff;margin-bottom:20px}
.hero-sub{font-size:18px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:32px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{flex:1;position:relative}
.hero-img{border-radius:var(--radius);box-shadow:0 24px 64px rgba(0,0,0,.35);object-fit:cover;width:100%}
@media(max-width:800px){
  .hero{min-height:auto}
  .hero-inner{padding:52px 0;flex-direction:column;gap:32px}
  .hero-copy{max-width:100%}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-visual{display:none}
}

/* ===== Section ===== */
.section{padding:var(--space-section) 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;flex-wrap:wrap;gap:12px}
.section-title{display:flex;align-items:center;gap:14px;font-size:30px;font-weight:700;color:var(--text)}
.section-title::before{content:"";width:4px;height:26px;background:var(--primary);border-radius:2px}
.section-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-secondary);background:rgba(47,158,68,.08);padding:5px 14px;border-radius:999px;font-weight:600}
@media(max-width:640px){
  .section{padding:56px 0}
  .section-title{font-size:22px}
}

/* ===== News ===== */
.news-section{background:var(--light)}
.news-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);height:100%;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s;position:relative}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.card-cover{position:relative;aspect-ratio:4/3;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.news-card:hover .card-cover img{transform:scale(1.03)}
.card-tag{position:absolute;top:12px;left:12px;background:var(--primary);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;letter-spacing:.04em;z-index:2}
.card-body{padding:20px 20px 16px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px}
.card-title a{transition:color .2s}
.card-title a:hover{color:var(--primary)}
.card-excerpt{color:var(--text-secondary);font-size:14px;line-height:1.75;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.card-meta{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);padding-top:12px;font-size:13px;color:var(--text-secondary)}
.card-meta i{margin-right:4px}
.read-more{color:var(--primary);font-weight:600;transition:color .2s}
.read-more:hover{color:var(--primary-dark)}
.empty-state{background:var(--white);border:1px dashed var(--border);border-radius:var(--radius);padding:56px 24px;text-align:center;color:var(--text-secondary);font-size:16px}

/* ===== Features ===== */
.feature-section{background:var(--white)}
.feature-block{display:flex;gap:56px;align-items:center;margin-bottom:72px}
.feature-block:last-child{margin-bottom:0}
.feature-block.reverse{flex-direction:row-reverse}
.feature-media{flex:1}
.feature-media img{border-radius:var(--radius);box-shadow:var(--shadow-sm);width:100%;object-fit:cover}
.feature-copy{flex:1}
.feature-tag{display:inline-block;background:rgba(47,158,68,.1);color:var(--primary-dark);font-size:13px;font-weight:700;padding:4px 14px;border-radius:999px;margin-bottom:14px}
.feature-copy h3{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:12px;color:var(--text)}
.feature-copy p{font-size:16px;color:var(--text-secondary);line-height:1.8}
.feature-more{display:inline-block;margin-top:18px;color:var(--primary);font-weight:600;font-size:15px;transition:color .2s}
.feature-more:hover{color:var(--primary-dark)}
@media(max-width:800px){
  .feature-block,.feature-block.reverse{flex-direction:column;gap:28px}
  .feature-media{width:100%}
  .feature-copy h3{font-size:20px}
}

/* ===== Demo ===== */
.demo-section{background:#EEEBE4}
.demo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.demo-step{background:var(--white);border-radius:var(--radius);padding:32px 26px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;cursor:pointer}
.demo-step:nth-child(2){margin-top:20px}
.demo-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-num{font-size:40px;font-weight:800;color:var(--primary);line-height:1;margin-bottom:16px;font-family:inherit}
.demo-step h3{font-size:20px;font-weight:700;margin-bottom:10px}
.demo-step p{font-size:14px;color:var(--text-secondary);line-height:1.75}
@media(max-width:800px){
  .demo-grid{grid-template-columns:1fr}
  .demo-step:nth-child(2){margin-top:0}
}

/* ===== Data ===== */
.data-section{background:var(--dark);color:#fff;padding:80px 0}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.data-item{text-align:center;position:relative}
.data-item+.data-item::before{content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);width:8px;height:8px;background:var(--accent);opacity:.7}
.data-num{font-size:38px;font-weight:800;color:var(--primary);line-height:1.2;font-family:var(--font-family)}
.data-label{color:rgba(255,255,255,.68);font-size:14px;margin-top:6px}
.quote-line{text-align:center;color:rgba(255,255,255,.7);font-size:17px;font-style:italic;margin-top:56px;padding:0 20px;position:relative}
.quote-line::before{content:"“";display:block;font-size:40px;color:var(--primary);font-style:normal;line-height:1}
.data-more{text-align:center;margin-top:32px}
.data-more a{color:var(--primary);font-weight:600;border:1px solid rgba(47,158,68,.5);border-radius:999px;padding:10px 24px;display:inline-block;transition:background .2s,color .2s}
.data-more a:hover{background:var(--primary);color:#fff}
@media(max-width:800px){
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .data-item+.data-item::before{display:none}
}

/* ===== Price ===== */
.price-section{background:var(--white)}
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:860px;margin:0 auto}
.price-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow-sm);position:relative;transition:box-shadow .25s}
.price-card:hover{box-shadow:var(--shadow-md)}
.price-card.highlight{background:var(--dark);color:#fff;border:2px solid var(--primary)}
.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;padding:5px 18px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.05em;white-space:nowrap}
.price-name{font-size:20px;font-weight:700;margin-bottom:8px}
.price-sub{font-size:13px;color:var(--text-secondary);margin-bottom:20px}
.price-card.highlight .price-sub{color:rgba(255,255,255,.6)}
.price-num{font-size:42px;font-weight:800;line-height:1.1;margin-bottom:24px}
.price-num small{font-size:15px;font-weight:500;color:var(--text-secondary);margin-left:4px}
.price-card.highlight .price-num small{color:rgba(255,255,255,.6)}
.price-list{margin-bottom:28px}
.price-list li{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px;font-size:15px;color:var(--text-secondary)}
.price-card.highlight .price-list li{color:rgba(255,255,255,.78)}
.price-list i{color:var(--primary);margin-top:6px;font-size:13px}
@media(max-width:700px){
  .price-grid{grid-template-columns:1fr}
}

/* ===== FAQ ===== */
.faq-section{background:var(--light)}
.faq-wrapper{max-width:860px;margin:0 auto}
.faq-wrapper .accordion-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s,border-color .2s}
.faq-wrapper .accordion-item.is-active{border-color:rgba(47,158,68,.45);box-shadow:var(--shadow-sm)}
.faq-wrapper .accordion-title{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;transition:color .2s}
.faq-wrapper .accordion-title:hover{color:var(--primary)}
.faq-wrapper .accordion-title::after{content:"+";font-size:22px;font-weight:400;color:var(--text-secondary);transition:transform .2s,color .2s;line-height:1}
.faq-wrapper .accordion-item.is-active .accordion-title{color:var(--primary)}
.faq-wrapper .accordion-item.is-active .accordion-title::after{content:"−";transform:rotate(0);color:var(--primary)}
.faq-wrapper .accordion-content{padding:0 24px 20px;font-size:15px;color:var(--text-secondary);line-height:1.8}
.faq-wrapper .accordion-content>p{margin-bottom:10px}
.faq-wrapper .accordion-content>p:last-child{margin-bottom:0}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(120deg,rgba(47,158,68,.14),rgba(247,103,7,.08)),var(--light);padding:72px 0 80px;text-align:center}
.cta-section h2{font-size:28px;font-weight:800;margin-bottom:12px}
.cta-section p{color:var(--text-secondary);font-size:16px;max-width:520px;margin:0 auto 28px}
@media(max-width:640px){
  .cta-section h2{font-size:22px}
}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.68);padding:64px 0 28px;margin-top:0}
.footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:28px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800;color:#fff}
.footer-logo .logo-icon{width:38px;height:38px;font-size:18px}
.footer-tagline{font-size:14px;color:rgba(255,255,255,.55)}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;padding:32px 0 36px}
.footer-links h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;letter-spacing:.03em}
.footer-links a{display:block;color:rgba(255,255,255,.6);font-size:14px;margin-bottom:9px;transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45)}
@media(max-width:700px){
  .footer-links{grid-template-columns:repeat(2,1fr);gap:24px}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
}

/* ===== Floating CTA ===== */
.fab-cta{position:fixed;bottom:24px;right:24px;z-index:90;background:var(--accent);color:#fff;border:0;border-radius:999px;height:48px;padding:0 24px;font-size:15px;font-weight:700;box-shadow:0 8px 24px rgba(247,103,7,.4);cursor:pointer;display:flex;align-items:center;gap:8px;opacity:0;visibility:hidden;transform:translateY(16px);transition:opacity .25s,transform .25s,visibility .25s,background .2s}
.fab-cta.visible{opacity:1;visibility:visible;transform:translateY(0)}
.fab-cta:hover{background:var(--accent-dark)}
@media(max-width:640px){
  .fab-cta{bottom:0;right:0;left:0;width:100%;height:52px;border-radius:0;justify-content:center;padding:0;font-size:16px}
}

/* roulang page: category1 */
:root {
      --primary: #2F9E44;
      --primary-dark: #1B7A33;
      --accent: #F76707;
      --accent-dark: #D9550B;
      --dark: #161A1D;
      --dark-soft: #1F242A;
      --light: #F7F5F0;
      --white: #FFFFFF;
      --text: #1F2328;
      --text-sub: #5D666F;
      --border: #E8E6E1;
      --radius: 10px;
      --radius-sm: 8px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 8px rgba(22, 26, 29, 0.06);
      --shadow-md: 0 8px 24px rgba(22, 26, 29, 0.12);
      --spacing-section: 88px;
      --spacing-section-mobile: 56px;
      --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: var(--font-family);
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--light);
      overflow-x: hidden;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }

    ul, ol {
      list-style: none;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ========== 按钮体系 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.24s ease;
      white-space: nowrap;
      line-height: 1;
    }

    .btn:focus-visible {
      outline: 3px solid rgba(47, 158, 68, 0.35);
      outline-offset: 2px;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(27, 122, 51, 0.24);
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
    }
    .btn-accent:hover {
      background: var(--accent-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(247, 103, 7, 0.28);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--border);
      color: var(--text);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-login {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.35);
      color: #e6e6e6;
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
    }
    .btn-login:hover {
      border-color: rgba(255, 255, 255, 0.7);
      color: #fff;
    }

    .btn-start {
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
    }

    .btn-lg {
      height: 48px;
      padding: 0 32px;
      font-size: 16px;
    }

    /* ========== 导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--dark);
      height: 68px;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.16);
    }

    .site-header.scrolled {
      background: rgba(22, 26, 29, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      height: 68px;
      gap: 20px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), #69DB7C);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 15px;
      box-shadow: 0 2px 8px rgba(47, 158, 68, 0.3);
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.02em;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-left: 8px;
    }
    .main-nav a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.78);
      border-radius: 6px;
      position: relative;
      transition: color 0.2s ease, background-color 0.2s ease;
    }
    .main-nav a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .main-nav a.active {
      color: #fff;
    }
    .main-nav a.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 2px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-left: auto;
      flex-shrink: 0;
    }

    .search-box {
      position: relative;
      width: 220px;
    }
    .search-box input {
      width: 100%;
      height: 38px;
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      padding: 0 36px 0 14px;
      font-size: 14px;
      transition: background-color 0.2s ease, border-color 0.2s ease;
    }
    .search-box input::placeholder {
      color: rgba(255, 255, 255, 0.45);
    }
    .search-box input:focus {
      outline: none;
      background: #fff;
      color: var(--text);
      border-color: transparent;
    }
    .search-box input:focus::placeholder {
      color: #b0b0b0;
    }
    .search-box i {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
      pointer-events: none;
      transition: color 0.2s ease;
    }
    .search-box input:focus + i,
    .search-box input:focus ~ i {
      color: var(--text-sub);
    }

    .nav-toggle {
      display: none;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.25);
      width: 38px;
      height: 38px;
      border-radius: 8px;
      color: #fff;
      font-size: 16px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }
    .nav-toggle:hover {
      background: rgba(255, 255, 255, 0.1);
    }
    .nav-toggle:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    /* ========== 页面标题区 ========== */
    .page-hero {
      position: relative;
      background: var(--dark);
      padding: 72px 0 64px;
      color: #fff;
      overflow: hidden;
    }
    .page-hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      opacity: 0.3;
      z-index: 0;
    }
    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(22, 26, 29, 0.92) 0%, rgba(22, 26, 29, 0.72) 55%, rgba(22, 26, 29, 0.5) 100%);
      z-index: 1;
    }
    .page-hero .container {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
      background: rgba(255, 255, 255, 0.08);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 22px;
      backdrop-filter: blur(4px);
    }
    .breadcrumb a {
      color: rgba(255, 255, 255, 0.75);
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb i {
      font-size: 10px;
      color: rgba(255, 255, 255, 0.4);
    }

    .page-hero h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      max-width: 760px;
      position: relative;
      padding-left: 18px;
    }
    .page-hero h1::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      bottom: 6px;
      width: 4px;
      background: var(--primary);
      border-radius: 4px;
    }
    .page-hero .lead {
      font-size: 15px;
      line-height: 1.85;
      color: rgba(255, 255, 255, 0.72);
      max-width: 720px;
      margin-bottom: 0;
    }

    /* ========== 通用区块 ========== */
    .section {
      padding: var(--spacing-section) 0;
    }
    .section-alt {
      background: var(--white);
    }
    .section-dark {
      background: var(--dark);
      color: #fff;
    }
    .section-light {
      background: var(--light);
    }

    .section-head {
      margin-bottom: 40px;
      position: relative;
    }
    .section-head .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--primary);
      background: rgba(47, 158, 68, 0.1);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
    }
    .section-head h2 {
      font-size: 30px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text);
      margin-bottom: 8px;
      position: relative;
      padding-left: 18px;
    }
    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      bottom: 8px;
      width: 4px;
      background: var(--primary);
      border-radius: 4px;
    }
    .section-head p {
      color: var(--text-sub);
      font-size: 15px;
      line-height: 1.7;
      max-width: 650px;
      margin-left: 18px;
    }

    .section-dark .section-head h2 {
      color: #fff;
    }
    .section-dark .section-head p {
      color: rgba(255, 255, 255, 0.65);
    }

    /* ========== 价值卡 ========== */
    .value-grid {
      row-gap: 24px;
    }
    .value-card {
      background: var(--white);
      border: 1px solid transparent;
      border-radius: var(--radius);
      padding: 32px 28px;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
    }
    .value-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
      border-color: rgba(47, 158, 68, 0.25);
    }
    .value-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(47, 158, 68, 0.14), rgba(47, 158, 68, 0.04));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
    }
    .value-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text);
    }
    .value-card p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    /* ========== 焦点推荐 ========== */
    .feature-section {
      background: var(--white);
    }
    .feature-card {
      display: flex;
      background: var(--light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      margin-bottom: 28px;
      border: 1px solid var(--border);
      transition: box-shadow 0.3s ease;
    }
    .feature-card:hover {
      box-shadow: var(--shadow-md);
    }
    .feature-card.reverse {
      flex-direction: row-reverse;
    }
    .feature-img {
      width: 48%;
      flex-shrink: 0;
      overflow: hidden;
      position: relative;
    }
    .feature-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .feature-card:hover .feature-img img {
      transform: scale(1.02);
    }
    .feature-body {
      padding: 36px 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      flex: 1;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(47, 158, 68, 0.1);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 14px;
      align-self: flex-start;
    }
    .feature-body h3 {
      font-size: 22px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 12px;
      color: var(--text);
    }
    .feature-body p {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-sub);
      margin-bottom: 18px;
    }
    .feature-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: auto;
      font-size: 13px;
      color: var(--text-sub);
    }
    .feature-meta a {
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .feature-meta a:hover {
      color: var(--primary-dark);
    }

    /* ========== 资讯卡片 ========== */
    .news-grid {
      row-gap: 24px;
    }
    .news-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .news-cover {
      position: relative;
      overflow: hidden;
      aspect-ratio: 4/3;
      background: var(--dark-soft);
    }
    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-cover img {
      transform: scale(1.03);
    }
    .news-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(22, 26, 29, 0.78);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      z-index: 2;
      letter-spacing: 0.02em;
    }
    .news-body {
      padding: 22px 20px 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.5;
      color: var(--text);
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      min-height: 51px;
    }
    .news-body p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-sub);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-sub);
      border-top: 1px solid var(--border);
      padding-top: 14px;
      margin-top: auto;
    }
    .news-meta a {
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-meta a:hover {
      color: var(--primary-dark);
    }

    /* ========== 数据区 ========== */
    .data-section {
      background: var(--dark);
      color: #fff;
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }
    .data-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
      opacity: 0.6;
    }
    .data-grid {
      row-gap: 36px;
    }
    .data-item {
      text-align: center;
      padding: 24px 16px;
      position: relative;
    }
    .data-item::after {
      content: "";
      position: absolute;
      right: -10px;
      top: 50%;
      transform: translateY(-50%);
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 2px;
      opacity: 0.7;
    }
    .data-item:last-child::after {
      display: none;
    }
    .data-num {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      display: block;
      margin-bottom: 8px;
    }
    .data-label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.62);
      letter-spacing: 0.04em;
    }

    /* ========== FAQ ========== */
    .faq-section {
      background: var(--light);
    }
    .faq-wrap {
      max-width: 760px;
      margin: 0 auto;
    }
    .accordion {
      background: transparent;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .accordion-item {
      background: var(--white);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }
    .accordion-item:hover {
      border-color: rgba(47, 158, 68, 0.25);
    }
    .accordion-item.is-active {
      border-color: rgba(47, 158, 68, 0.4);
      box-shadow: var(--shadow-md);
    }
    .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      padding: 20px 24px;
      background: var(--white);
      line-height: 1.4;
      border-radius: var(--radius);
      transition: color 0.2s ease;
    }
    .accordion-title:hover,
    .accordion-item.is-active .accordion-title {
      color: var(--primary);
    }
    .accordion-title::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 13px;
      color: var(--text-sub);
      margin-left: 16px;
      transition: transform 0.3s ease, color 0.2s ease;
      flex-shrink: 0;
    }
    .accordion-item.is-active .accordion-title::after {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .accordion-content {
      border-top: 1px solid var(--border);
      padding: 4px 24px 20px;
    }
    .accordion-content p {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    /* ========== CTA区 ========== */
    .cta-section {
      position: relative;
      background: var(--light);
      padding: 72px 0 88px;
      overflow: hidden;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 6px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0.5;
    }
    .cta-inner {
      max-width: 680px;
      margin: 0 auto;
      text-align: center;
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
      position: relative;
    }
    .cta-inner h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .cta-inner p {
      font-size: 15px;
      color: var(--text-sub);
      margin-bottom: 28px;
      line-height: 1.75;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--dark);
      color: #fff;
      padding: 64px 0 0;
      position: relative;
    }
    .site-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
      opacity: 0.5;
    }
    .footer-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      gap: 16px;
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: #fff;
    }
    .footer-tagline {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      letter-spacing: 0.03em;
    }
    .footer-links {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      padding: 36px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-links h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links a {
      display: block;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      padding: 4px 0;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }
    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 22px 0;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ========== 浮动CTA ========== */
    .float-cta {
      position: fixed;
      bottom: 24px;
      right: 24px;
      z-index: 99;
      background: var(--accent);
      color: #fff;
      border: none;
      border-radius: 999px;
      padding: 14px 24px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      box-shadow: 0 6px 20px rgba(247, 103, 7, 0.4);
      opacity: 0;
      visibility: hidden;
      transform: translateY(12px);
      transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background-color 0.2s ease;
    }
    .float-cta.visible {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .float-cta:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .nav-wrap {
        gap: 12px;
      }
      .search-box {
        width: 170px;
      }
      .main-nav a {
        padding: 8px 10px;
        font-size: 13px;
      }
      .feature-body {
        padding: 28px 28px;
      }
    }

    @media (max-width: 768px) {
      .site-header,
      .nav-wrap {
        height: 60px;
      }

      .nav-toggle {
        display: flex;
        margin-left: auto;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 20px 16px;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
        gap: 4px;
        backdrop-filter: blur(12px);
      }
      .main-nav.open {
        display: flex;
      }
      .main-nav a {
        padding: 12px 14px;
        font-size: 15px;
        color: rgba(255, 255, 255, 0.85);
      }
      .main-nav a.active::after {
        display: none;
      }
      .main-nav a.active {
        background: rgba(47, 158, 68, 0.15);
        color: #fff;
        border-radius: 8px;
      }

      .nav-actions {
        gap: 6px;
      }
      .nav-actions .search-box {
        display: none;
      }
      .btn-login {
        display: none;
      }
      .btn-start {
        height: 36px;
        padding: 0 14px;
        font-size: 13px;
      }

      .logo-text {
        font-size: 18px;
      }

      .page-hero {
        padding: 56px 0 48px;
      }
      .page-hero h1 {
        font-size: 27px;
        line-height: 1.35;
      }
      .page-hero .lead {
        font-size: 14px;
        line-height: 1.8;
      }
      .breadcrumb {
        font-size: 12px;
        margin-bottom: 16px;
      }

      .section {
        padding: var(--spacing-section-mobile) 0;
      }
      .section-head {
        margin-bottom: 28px;
      }
      .section-head h2 {
        font-size: 23px;
        padding-left: 14px;
      }
      .section-head h2::before {
        width: 3px;
      }
      .section-head p {
        font-size: 14px;
        margin-left: 14px;
      }
      .section-head .section-tag {
        font-size: 11px;
      }

      .value-card {
        padding: 26px 22px;
      }
      .value-card h3 {
        font-size: 16px;
      }
      .value-card p {
        font-size: 13px;
      }

      .feature-card,
      .feature-card.reverse {
        flex-direction: column;
      }
      .feature-img {
        width: 100%;
        height: 200px;
      }
      .feature-body {
        padding: 24px 22px 28px;
      }
      .feature-body h3 {
        font-size: 19px;
      }
      .feature-body p {
        font-size: 14px;
      }

      .news-body {
        padding: 18px 16px 16px;
      }
      .news-body h3 {
        font-size: 16px;
        min-height: 48px;
      }
      .news-body p {
        font-size: 13px;
      }

      .data-section {
        padding: 56px 0;
      }
      .data-num {
        font-size: 30px;
      }
      .data-label {
        font-size: 13px;
      }
      .data-item::after {
        display: none;
      }

      .accordion-title {
        font-size: 15px;
        padding: 16px 18px;
      }
      .accordion-content {
        padding: 2px 18px 16px;
      }
      .accordion-content p {
        font-size: 14px;
      }

      .cta-section {
        padding: 56px 0 64px;
      }
      .cta-inner {
        padding: 36px 24px;
      }
      .cta-inner h2 {
        font-size: 22px;
      }
      .cta-inner p {
        font-size: 14px;
      }
      .btn-lg {
        height: 44px;
        font-size: 15px;
        padding: 0 26px;
      }

      .footer-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding-bottom: 24px;
      }
      .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        padding: 28px 0;
      }
      .footer-links h4 {
        font-size: 14px;
        margin-bottom: 12px;
      }
      .footer-links a {
        font-size: 13px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 0;
        font-size: 12px;
      }

      .float-cta {
        bottom: 16px;
        right: 16px;
        padding: 12px 20px;
        font-size: 14px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .page-hero h1 {
        font-size: 23px;
      }
      .news-body h3 {
        min-height: 0;
      }
      .data-grid .cell {
        flex: 0 0 50%;
        max-width: 50%;
      }
    }

    /* Foundation 覆盖 */
    .grid-margin-x > .cell {
      margin-bottom: 0;
    }

    .accordion .accordion-item .accordion-title {
      border: none;
    }

/* roulang page: article */
:root {
  --primary: #2F9E44;
  --primary-dark: #1B7A33;
  --primary-light: #D8F0DE;
  --accent: #F76707;
  --accent-dark: #D8590C;
  --dark: #161A1D;
  --dark-2: #1E2429;
  --light: #F7F5F0;
  --white: #FFFFFF;
  --text: #1F2328;
  --text-secondary: #5D666F;
  --border: #E8E6E1;
  --radius: 10px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(22, 26, 29, 0.06);
  --shadow-hover: 0 8px 24px rgba(22, 26, 29, 0.12);
  --font: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--light);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(47, 158, 68, .35); outline-offset: 2px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(47,158,68,.3); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(247,103,7,.35); }
.btn-accent:active { transform: translateY(0); box-shadow: none; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid #C9CDD1; }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: rgba(47,158,68,.04); }
.btn-lg { height: 50px; padding: 0 30px; font-size: 16px; }

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
}
.tag-outline { background: transparent; border: 1px solid rgba(255,255,255,.35); color: rgba(255,255,255,.85); }
.tag-solid { background: var(--primary); color: #fff; }
.tag-orange { background: #FFF0E6; color: var(--accent); }

/* ===== 导航 ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,.06);
  height: 68px;
  display: flex;
  align-items: center;
}
.main-nav.scrolled {
  background: rgba(22,26,29,.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.nav-inner { display: flex; align-items: center; width: 100%; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #46B55B);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px;
  box-shadow: 0 2px 8px rgba(47,158,68,.3);
}
.logo span:last-child { color: #fff; font-size: 18px; font-weight: 800; letter-spacing: .02em; }
.nav-center { display: flex; align-items: center; gap: 26px; flex: 1; }
.nav-center a {
  color: rgba(255,255,255,.78);
  font-size: 14px;
  font-weight: 500;
  padding: 20px 2px;
  position: relative;
  transition: color .2s;
}
.nav-center a:hover { color: #fff; }
.nav-center a.active { color: #fff; }
.nav-center a.active::after {
  content: '';
  position: absolute;
  bottom: 12px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-search { position: relative; }
.nav-search input {
  height: 38px;
  width: 220px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-sm);
  padding: 0 14px 0 36px;
  color: #fff;
  font-size: 14px;
  transition: all .25s;
}
.nav-search input::placeholder { color: rgba(255,255,255,.4); }
.nav-search input:focus { background: #fff; color: var(--text); border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,158,68,.25); }
.nav-search i { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: rgba(255,255,255,.45); font-size: 14px; pointer-events: none; transition: color .2s; }
.nav-search input:focus ~ i { color: var(--primary); }
.nav-login { color: rgba(255,255,255,.7); font-size: 14px; font-weight: 500; }
.nav-login:hover { color: #fff; }
.nav-cta {
  height: 38px;
  padding: 0 20px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .2s;
}
.nav-cta:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 3px 12px rgba(247,103,7,.35); }

/* ===== 页面标题区 ===== */
.page-header {
  background-color: var(--dark);
  background-image: linear-gradient(100deg, rgba(22,26,29,.92) 40%, rgba(22,26,29,.55)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 70px 0 66px;
  position: relative;
  color: #fff;
}
.page-header::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--primary);
}
.page-header .container { position: relative; }

.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255,255,255,.55); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,.65); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(255,255,255,.3); font-size: 11px; }
.breadcrumb .current { color: rgba(255,255,255,.85); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 360px; }

.page-header h1 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.35;
  max-width: 820px;
  letter-spacing: .01em;
}
.page-header .post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
  color: rgba(255,255,255,.7);
  font-size: 14px;
}
.page-header .post-meta span { display: inline-flex; align-items: center; gap: 7px; }
.page-header .post-meta span + span::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); margin-right: 4px; }
.page-header .post-meta i { color: var(--primary); font-size: 13px; }

/* ===== 文章主体 ===== */
.post-section { padding: 64px 0; background: var(--light); }
.post-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 52px;
  max-width: 860px;
  margin: 0 auto;
}
.post-content { max-width: 760px; margin: 0 auto; }
.post-content p { margin-bottom: 1.2em; font-size: 16px; line-height: 1.8; color: #2A2E33; }
.post-content h2 { font-size: 26px; font-weight: 700; margin: 40px 0 16px; line-height: 1.4; }
.post-content h3 { font-size: 20px; font-weight: 700; margin: 30px 0 12px; line-height: 1.4; }
.post-content h4 { font-size: 17px; font-weight: 700; margin: 24px 0 10px; }
.post-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.post-content a:hover { color: var(--primary-dark); }
.post-content img { border-radius: var(--radius); margin: 24px 0; width: 100%; height: auto; object-fit: cover; }
.post-content blockquote {
  border-left: 4px solid var(--primary);
  background: #EFFAF1;
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: #3A4046;
  font-size: 15px;
}
.post-content blockquote p { margin-bottom: 0; }
.post-content ul, .post-content ol { margin: 0 0 1.2em 1.5em; padding: 0; }
.post-content ul li { list-style: disc; margin-bottom: 6px; }
.post-content ol li { list-style: decimal; margin-bottom: 6px; }
.post-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.post-content table th { background: var(--dark); color: #fff; text-align: left; padding: 12px 14px; }
.post-content table td { padding: 11px 14px; border-bottom: 1px solid var(--border); }
.post-content table tr:nth-child(even) td { background: #FAFAF7; }
.post-content pre { background: var(--dark); color: #E9ECEF; padding: 18px 20px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 14px; line-height: 1.6; margin: 20px 0; }
.post-content code { font-family: 'SF Mono', 'Cascadia Code', Consolas, monospace; }
.post-content iframe { border-radius: var(--radius); max-width: 100%; }
.post-content hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

/* 文章底部 */
.post-footer { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border); max-width: 760px; margin-left: auto; margin-right: auto; }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.post-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.pager-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all .25s;
}
.pager-link:hover { border-color: var(--primary); color: var(--primary); background: rgba(47,158,68,.03); }
.pager-link i { font-size: 13px; }
.post-back-list { display: inline-flex; align-items: center; gap: 6px; color: var(--text-secondary); font-size: 14px; margin-top: 20px; }
.post-back-list:hover { color: var(--primary); }

/* 未找到 */
.post-not-found { text-align: center; padding: 48px 24px; }
.post-not-found .nf-icon {
  width: 76px; height: 76px;
  background: #F1F2F4;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 22px;
  color: var(--text-secondary);
  font-size: 28px;
}
.post-not-found h2 { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.post-not-found p { color: var(--text-secondary); font-size: 15px; margin-bottom: 24px; }

/* ===== 相关推荐 ===== */
.related-section { padding: 72px 0 80px; background: var(--white); border-top: 1px solid var(--border); }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head h2 { font-size: 28px; font-weight: 800; letter-spacing: .01em; }
.section-head p { color: var(--text-secondary); font-size: 15px; margin-top: 6px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: transparent; }
.article-card .card-img { position: relative; overflow: hidden; aspect-ratio: 4/3; background: #E9E6DF; }
.article-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.article-card:hover .card-img img { transform: scale(1.04); }
.article-card .card-cat {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(22,26,29,.8);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: .03em;
}
.article-card .card-content { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.article-card .card-title { font-size: 17px; font-weight: 700; line-height: 1.5; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 51px; }
.article-card .card-excerpt { font-size: 14px; line-height: 1.7; color: var(--text-secondary); margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-card .card-read {
  margin-top: auto;
  padding-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: gap .2s;
}
.article-card .card-read:hover { gap: 10px; color: var(--primary-dark); }

/* ===== CTA ===== */
.cta-section {
  background: var(--dark);
  background-image: linear-gradient(120deg, rgba(47,158,68,.12), rgba(247,103,7,.08)), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 30%, var(--accent) 70%);
}
.cta-section h2 { color: #fff; font-size: 30px; font-weight: 800; margin-bottom: 10px; }
.cta-section p { color: rgba(255,255,255,.6); font-size: 16px; margin-bottom: 26px; }

/* ===== 页脚 ===== */
.site-footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 56px 0 28px; font-size: 14px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,.08); flex-wrap: wrap; }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 19px; font-weight: 800; }
.footer-logo .logo-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #46B55B);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px;
}
.footer-tagline { color: rgba(255,255,255,.55); font-size: 14px; letter-spacing: .02em; }
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 36px 0 32px;
}
.footer-links h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.footer-links a {
  display: block;
  color: rgba(255,255,255,.55);
  line-height: 2.1;
  transition: color .2s, padding-left .2s;
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: rgba(255,255,255,.38);
  font-size: 13px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-center { gap: 16px; }
  .nav-center a { font-size: 13px; }
  .nav-search input { width: 170px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .main-nav { height: auto; min-height: 60px; }
  .nav-inner { display: flex; flex-wrap: wrap; gap: 10px; padding: 10px 0; }
  .nav-center { order: 3; width: 100%; overflow-x: auto; gap: 18px; padding-bottom: 4px; }
  .nav-center a { padding: 8px 0; white-space: nowrap; }
  .nav-center a.active::after { bottom: 0; }
  .nav-search { order: 2; flex: 1; }
  .nav-search input { width: 100%; }
  .nav-right { width: 100%; order: 4; justify-content: flex-end; padding-top: 4px; gap: 10px; }
  .nav-cta { height: 36px; padding: 0 16px; font-size: 13px; }
  .nav-login { font-size: 13px; }

  .page-header { padding: 52px 0 48px; }
  .page-header h1 { font-size: 26px; }
  .page-header .post-meta { gap: 10px; }
  .page-header .post-meta span + span::before { display: none; }

  .post-section { padding: 40px 0; }
  .post-card { padding: 28px 20px; border-radius: var(--radius-sm); }
  .post-content p { font-size: 16px; }
  .post-content h2 { font-size: 22px; margin-top: 30px; }
  .post-content h3 { font-size: 18px; }
  .post-content blockquote { padding: 14px 16px; font-size: 14px; }
  .post-pager { flex-direction: row; }
  .pager-link { padding: 8px 14px; font-size: 13px; }

  .related-section { padding: 48px 0 56px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .section-head h2 { font-size: 24px; }

  .cta-section { padding: 56px 0; }
  .cta-section h2 { font-size: 24px; }

  .footer-links { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
}

@media (max-width: 520px) {
  .page-header h1 { font-size: 23px; }
  .page-header .post-meta { font-size: 13px; }
  .post-card { padding: 22px 16px; }
  .post-content p { font-size: 15px; line-height: 1.75; }
  .post-content table { font-size: 13px; display: block; overflow-x: auto; white-space: nowrap; }
  .tag { font-size: 11px; padding: 4px 10px; }
  .pager-link { flex-direction: column; gap: 2px; text-align: center; }
  .footer-links { grid-template-columns: 1fr; gap: 18px; }
}

/* roulang page: category2 */
:root {
            --primary: #2F9E44;
            --primary-dark: #1B7A33;
            --accent: #F76707;
            --accent-dark: #D9550C;
            --dark: #161A1D;
            --dark-soft: #1F2428;
            --light: #F7F5F0;
            --white: #FFFFFF;
            --text: #1F2328;
            --text-2: #5D666F;
            --border: #E8E6E1;
            --radius: 10px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(22, 26, 29, 0.06);
            --shadow-lg: 0 8px 24px rgba(22, 26, 29, 0.12);
            --space-section: 88px;
            --space-section-mb: 56px;
            --container: 1200px;
            --font: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--light);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease, border-color .25s ease, background-color .25s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            font-size: 13px;
            letter-spacing: .08em;
            color: var(--primary);
            background: rgba(47, 158, 68, .1);
            border-radius: 999px;
            padding: 4px 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-2);
            max-width: 640px;
            line-height: 1.8;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--dark);
            backdrop-filter: blur(12px);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: rgba(22, 26, 29, .92);
            box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: .02em;
        }
        .logo:hover {
            color: var(--white);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            color: #fff;
            font-size: 17px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            line-height: 1.2;
            transition: background .2s ease, color .2s ease;
        }
        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .main-nav a.active {
            color: #fff;
            background: rgba(47, 158, 68, .25);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            position: relative;
            width: 220px;
        }
        .search-box input {
            width: 100%;
            height: 36px;
            border: none;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, .1);
            color: #fff;
            padding: 0 14px 0 34px;
            font-size: 13px;
            outline: none;
            transition: background .2s ease;
        }
        .search-box input::placeholder {
            color: rgba(255, 255, 255, .5);
        }
        .search-box input:focus {
            background: rgba(255, 255, 255, .18);
        }
        .search-box i {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            pointer-events: none;
        }
        .header-login {
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .header-login:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 20px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background .25s ease, transform .2s ease, box-shadow .2s ease;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(47, 158, 68, .25);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 22px;
            background: var(--accent);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background .25s ease, transform .2s ease, box-shadow .2s ease;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(247, 103, 7, .3);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 22px;
            background: transparent;
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color .25s ease, color .25s ease;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .nav-cta {
            height: 36px;
            padding: 0 16px;
            font-size: 14px;
        }
        /* Page Hero */
        .page-hero {
            position: relative;
            background:
                linear-gradient(180deg, rgba(22, 26, 29, .86), rgba(22, 26, 29, .72)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 72px 0 64px;
            border-bottom: 3px solid var(--primary);
        }
        .page-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .8);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .page-cate-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(47, 158, 68, .25);
            border: 1px solid rgba(47, 158, 68, .5);
            color: #d3f9d8;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: .01em;
        }
        .page-hero-sub {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 720px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        /* Guide Overview */
        .guide-overview {
            background: var(--light);
        }
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .guide-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .guide-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(47, 158, 68, .1);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            margin: 0;
        }
        /* Steps */
        .guide-steps {
            background: var(--white);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .step-card {
            position: relative;
            background: var(--light);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 28px 32px;
            text-align: center;
            transition: transform .25s ease, box-shadow .25s ease;
            cursor: pointer;
        }
        .step-card:nth-child(2) {
            margin-top: -20px;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .step-num {
            font-size: 52px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 14px;
            display: block;
            transition: transform .25s ease;
        }
        .step-card:hover .step-num {
            transform: scale(1.08);
        }
        .step-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            margin: 0;
        }
        .step-link {
            display: inline-block;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .step-link:hover {
            color: var(--primary-dark);
        }
        /* Rule Table */
        .rule-table-section {
            background: var(--light);
        }
        .rule-table-wrap {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
            margin-bottom: 24px;
        }
        .rule-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
        }
        .rule-table th,
        .rule-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }
        .rule-table th {
            background: var(--dark);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: .02em;
        }
        .rule-table tr:last-child td {
            border-bottom: none;
        }
        .rule-table tr:hover td {
            background: rgba(47, 158, 68, .03);
        }
        .rule-note {
            font-size: 14px;
            color: var(--text-2);
            background: rgba(47, 158, 68, .06);
            border-left: 3px solid var(--primary);
            padding: 14px 18px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            line-height: 1.8;
        }
        /* Data Wall */
        .data-wall {
            background:
                linear-gradient(135deg, rgba(22, 26, 29, .94), rgba(22, 26, 29, .86)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }
        .data-wall .section-tag {
            background: rgba(255, 255, 255, .1);
            color: #fff;
        }
        .data-wall .section-title {
            color: #fff;
            justify-content: center;
            margin-bottom: 8px;
        }
        .data-wall .section-title::before {
            display: none;
        }
        .data-wall .section-sub {
            color: rgba(255, 255, 255, .75);
            margin: 0 auto 44px;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 980px;
            margin: 0 auto;
        }
        .data-item {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 36px 16px;
            position: relative;
        }
        .data-item::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -12px;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 2px;
            transform: rotate(45deg) translateY(-50%);
        }
        .data-item:last-child::after {
            display: none;
        }
        .data-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            font-style: normal;
        }
        .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
            letter-spacing: .04em;
        }
        .data-quote {
            max-width: 640px;
            margin: 44px auto 0;
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .9);
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 32px;
            font-style: italic;
        }
        /* Use Cases */
        .use-cases {
            background: var(--white);
        }
        .use-case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .use-case-card {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--white);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .use-case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .use-case-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
        }
        .use-case-body {
            padding: 24px;
        }
        .use-case-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .use-case-body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            margin: 0;
        }
        /* FAQ */
        .faq-section {
            background: var(--light);
        }
        .faq-inner {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .faq-list .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease;
        }
        .faq-list .accordion-item:hover {
            box-shadow: var(--shadow-lg);
        }
        .faq-list .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            border: none;
            line-height: 1.4;
        }
        .faq-list .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--text-2);
            transition: transform .3s ease, color .3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-list .accordion-item.is-active .accordion-title::after {
            content: '−';
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-list .accordion-title:hover {
            color: var(--primary);
        }
        .faq-list .accordion-item.is-active .accordion-title {
            color: var(--primary);
        }
        .faq-list .accordion-content {
            padding: 0 24px 20px;
            border: none;
            background: transparent;
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-list .accordion-content p {
            margin: 0;
            font-size: 15px;
            color: var(--text-2);
        }
        /* CTA */
        .cta-section {
            background: var(--light);
            padding: 64px 0 80px;
        }
        .cta-inner {
            background: linear-gradient(135deg, var(--light), rgba(47, 158, 68, .06));
            border-top: 4px solid var(--primary);
            border-radius: var(--radius);
            text-align: center;
            padding: 56px 24px;
            position: relative;
        }
        .cta-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.35;
        }
        .cta-inner p {
            font-size: 16px;
            color: var(--text-2);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .8);
            padding-top: 56px;
        }
        .site-footer .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-top {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }
        .footer-tagline {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            padding: 36px 0;
        }
        .footer-links h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            line-height: 2;
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }
        /* Floating CTA */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 90;
            box-shadow: 0 8px 24px rgba(247, 103, 7, .35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
        }
        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(47, 158, 68, .4);
            outline-offset: 2px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .search-box {
                display: none;
            }
            .overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .use-case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 820px) {
            .header-inner {
                flex-wrap: wrap;
                min-height: auto;
                padding: 12px 0;
                gap: 10px;
            }
            .main-nav {
                order: 3;
                width: 100%;
                display: flex;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 0;
                padding-bottom: 4px;
            }
            .main-nav a {
                white-space: nowrap;
                font-size: 13px;
                padding: 8px 12px;
            }
            .header-actions {
                margin-left: auto;
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .step-card {
                padding: 24px 16px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-item::after {
                display: none;
            }
            .page-hero {
                padding: 56px 0 48px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
        }
        @media (max-width: 640px) {
            .section {
                padding: var(--space-section-mb) 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .overview-grid,
            .use-case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-card:nth-child(2) {
                margin-top: 0;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .float-cta {
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                border-radius: 0;
                height: 52px;
                transform: none;
            }
            .float-cta .btn-accent {
                width: 100%;
                height: 52px;
                border-radius: 0;
            }
            .float-cta.show {
                transform: none;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero-sub {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
            }
            .cta-inner {
                padding: 40px 20px;
            }
            .cta-inner h2 {
                font-size: 23px;
            }
            .rule-table th,
            .rule-table td {
                padding: 12px 14px;
                font-size: 13px;
            }
            .footer-top {
                flex-direction: column;
                align-items: flex-start;
            }
        }