/* roulang page: index */
:root {
  --dark-green: #0F3D2E;
  --dark-green-800: #0B2A21;
  --gold: #D4AF6A;
  --gold-dark: #B8914A;
  --bg-warm: #FAF7F2;
  --text-dark: #1F2937;
  --text-gray: #6B7280;
  --border-gold: #E5DCC8;
  --error: #B23B3B;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-warm);
  color: var(--text-dark);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--border-gold);
  transition: box-shadow .2s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--dark-green);
  color: var(--gold);
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  letter-spacing: 0;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark-green);
  letter-spacing: 1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #4B5563;
  border-radius: 6px;
  transition: color .2s, background .2s;
  position: relative;
}
.nav-link:hover { color: var(--dark-green); background: rgba(15,61,46,.05); }
.nav-link.active {
  color: var(--dark-green);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 12px; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: 1px solid var(--gold);
  color: var(--dark-green);
  background: transparent;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  transition: background .2s, color .2s, transform .15s;
}
.btn-outline:hover { background: var(--gold); color: #fff; }
.btn-outline:active { transform: translateY(1px); }
.btn-outline:focus-visible { outline: 3px solid rgba(212,175,106,.4); outline-offset: 2px; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--gold-dark);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  background: #fff;
  border-top: 1px solid var(--border-gold);
  padding: 12px 24px 24px;
}
.mobile-menu a {
  padding: 14px 0;
  font-size: 15px;
  color: #4B5563;
  border-bottom: 1px solid #F3EFE7;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a.active { color: var(--dark-green); font-weight: 600; }

/* ===== Hero ===== */
.hero-grid {
  background-color: var(--dark-green);
  background-image:
    linear-gradient(rgba(212,175,106,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,106,.07) 1px, transparent 1px);
  background-size: 44px 44px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
  padding: 88px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(212,175,106,.12);
  border: 1px solid rgba(212,175,106,.35);
  color: var(--gold);
  border-radius: 40px;
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero-title {
  color: #fff;
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.hero-title .highlight { color: var(--gold); }
.hero-sub {
  color: rgba(255,255,255,.82);
  font-size: 17px;
  line-height: 1.9;
  max-width: 460px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--gold);
  color: var(--dark-green);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-btn);
  transition: background .2s, box-shadow .2s, transform .15s;
}
.btn-primary:hover { background: #E3C78A; box-shadow: 0 4px 16px rgba(212,175,106,.3); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:focus-visible { outline: 3px solid rgba(212,175,106,.5); outline-offset: 2px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: transparent;
  border: 1px solid rgba(212,175,106,.6);
  color: var(--gold);
  font-weight: 500;
  font-size: 15px;
  border-radius: var(--radius-btn);
  transition: background .2s, border-color .2s;
}
.btn-ghost:hover { background: rgba(212,175,106,.08); border-color: var(--gold); }
.btn-ghost:active { transform: translateY(1px); }
.hero-trust {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,.65);
  font-size: 14px;
}
.hero-trust .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--gold); }
.hero-visual {
  position: relative;
  border-radius: var(--radius);
}
.hero-visual .backdrop {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0,0,0,.35);
}
.hero-visual::after {
  content: '';
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(212,175,106,.5);
  border-radius: var(--radius);
  pointer-events: none;
}

/* ===== Section common ===== */
.section { padding: 76px 0; }
.section-alt { background: #F3EEE5; }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--gold-dark);
  font-weight: 600;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  color: var(--dark-green);
  line-height: 1.4;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.section-sub {
  color: var(--text-gray);
  font-size: 16px;
  line-height: 1.9;
}

/* ===== Pain cards ===== */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.pain-card {
  background: #fff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 30px 24px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
}
.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}
.pain-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: rgba(15,61,46,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.pain-card h3 { font-size: 17px; font-weight: 600; color: var(--dark-green); margin-bottom: 8px; }
.pain-card p { font-size: 14px; color: var(--text-gray); line-height: 1.8; }

/* ===== Plan cards ===== */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.plan-card {
  background: #fff;
  border: 1px solid var(--border-gold);
  border-top: 2px solid var(--gold);
  border-radius: var(--radius);
  padding: 34px 28px 28px;
  transition: transform .2s, box-shadow .2s;
  display: flex;
  flex-direction: column;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.plan-num {
  font-family: Georgia, serif;
  font-size: 30px;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1;
}
.plan-card h3 { font-size: 19px; font-weight: 600; color: var(--dark-green); margin-bottom: 12px; }
.plan-card .desc { font-size: 14px; color: var(--text-gray); line-height: 1.9; margin-bottom: 18px; }
.plan-list { list-style: none; margin-bottom: 22px; }
.plan-list li {
  padding-left: 22px;
  position: relative;
  font-size: 14px;
  color: #4B5563;
  line-height: 1.9;
}
.plan-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 13px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
.plan-link {
  margin-top: auto;
  font-size: 14px;
  color: var(--gold-dark);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color .2s, gap .2s;
}
.plan-link:hover { color: var(--dark-green); gap: 8px; }

/* ===== Stats ===== */
.stats-section {
  background: var(--dark-green-800);
  position: relative;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
}
.stat-item { position: relative; padding-top: 20px; }
.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: var(--gold);
}
.stat-num {
  font-size: 40px;
  font-weight: 700;
  color: var(--gold);
  font-family: Georgia, serif;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,.65); letter-spacing: 1px; }

/* ===== News cards ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: #fff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold); }
.news-cover {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: #E8E2D5;
}
.news-body { padding: 22px 22px 20px; }
.news-badge {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  background: var(--gold);
  color: var(--dark-green);
  border-radius: 4px;
  font-weight: 600;
  margin-bottom: 12px;
}
.news-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--dark-green);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .summary {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #9CA3AF;
  border-top: 1px solid #F3EFE7;
  padding-top: 12px;
}
.news-meta .read { color: var(--gold-dark); font-weight: 500; transition: color .2s; }
.news-card:hover .read { color: var(--dark-green); }
.empty-state {
  background: #fff;
  border: 1px dashed var(--border-gold);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-gray);
  font-size: 15px;
}

/* ===== CTA banner ===== */
.cta-banner {
  background: linear-gradient(135deg, #F1E5CC 0%, #F6EEDC 100%);
  border: 1px solid var(--gold);
  border-radius: 16px;
  padding: 44px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner h2 { font-size: 24px; font-weight: 700; color: var(--dark-green); margin-bottom: 8px; }
.cta-banner p { color: #5B5140; font-size: 15px; max-width: 520px; }
.cta-banner .btn-primary { flex-shrink: 0; }

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-green-800);
  color: rgba(255,255,255,.75);
  padding-top: 56px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.9; margin-top: 14px; max-width: 260px; color: rgba(255,255,255,.55); }
.footer-links h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: var(--gold); }
.footer-contact p { font-size: 14px; line-height: 2; color: rgba(255,255,255,.6); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-card {
  background: #fff;
  border-radius: 16px;
  max-width: 480px;
  width: 100%;
  overflow: hidden;
  transform: translateY(20px) scale(.97);
  transition: transform .3s ease;
  box-shadow: var(--shadow-lg);
}
.modal-overlay.open .modal-card { transform: translateY(0) scale(1); }
.modal-header {
  background: var(--dark-green);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 { color: #fff; font-size: 18px; font-weight: 600; }
.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  font-size: 20px;
  transition: background .2s, color .2s;
}
.modal-close:hover { background: rgba(255,255,255,.12); color: #fff; }
.modal-body { padding: 26px 24px; }
.form-label { display: block; font-size: 13px; color: #4B5563; font-weight: 500; margin-bottom: 6px; }
.form-input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-btn);
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-dark);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  margin-bottom: 16px;
}
.form-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212,175,106,.25);
}
textarea.form-input { height: auto; padding: 12px 14px; resize: vertical; }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%23D4AF6A'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23D4AF6A' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.required { color: var(--error); }
.privacy-line {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #9CA3AF;
  margin-top: 14px;
  justify-content: center;
}
.privacy-line svg { width: 13px; height: 13px; flex-shrink: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding: 56px 24px 48px; gap: 32px; }
  .hero-visual { max-width: 460px; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta .btn-outline { display: none; }
  .menu-toggle { display: flex; }
  .mobile-menu.open { display: flex; }
  .section { padding: 52px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .cta-banner { padding: 30px 24px; }
  .hero-title { font-size: 28px; }
  .hero-sub { font-size: 15px; }
}
@media (max-width: 640px) {
  .pain-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section-head { margin-bottom: 32px; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { width: 100%; }
}

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0F3D2E;
            --accent: #D4AF6A;
            --accent-dark: #B8914A;
            --bg: #FAF7F2;
            --dark-bg: #0B2A21;
            --text: #1F2937;
            --text-sub: #6B7280;
            --border: #E5DCC8;
            --danger: #B23B3B;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
            --transition: 200ms ease;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-dark);
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-primary:focus-visible {
            outline: 4px solid rgba(212, 175, 106, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }

        .btn-outline:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border: 2px solid var(--accent);
            font-weight: 700;
        }

        .btn-accent:hover {
            background: var(--dark-bg);
            border-color: var(--dark-bg);
            color: var(--accent);
            transform: translateY(-1px);
        }

        .btn-accent:active {
            transform: translateY(1px);
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-cta-btn {
            padding: 8px 20px;
            font-size: 14px;
            border: 2px solid var(--accent);
            color: var(--primary);
            background: transparent;
            border-radius: 8px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .nav-cta-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 20px 20px 30px;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.open {
            display: flex;
            animation: fadeInDown 0.25s ease;
        }

        .mobile-menu .nav-link {
            padding: 14px 16px;
            font-size: 16px;
            border-radius: 8px;
        }

        .mobile-menu .nav-link.active {
            background: rgba(15, 61, 46, 0.08);
        }

        .mobile-menu .nav-link.active::after {
            display: none;
        }

        .mobile-menu-cta {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding: 20px 0 0;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-sub);
        }

        .breadcrumb a {
            color: var(--text-sub);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--accent);
            font-weight: 300;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 240px;
        }

        /* ========== 文章头部 ========== */
        .article-header {
            text-align: center;
            padding: 32px 0 20px;
        }

        .article-title {
            font-size: 32px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            letter-spacing: 0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-sub);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .badge {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(212, 175, 106, 0.15);
            color: var(--accent-dark);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        .article-cover {
            margin: 24px auto 0;
            max-width: 960px;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .article-cover img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        /* ========== 正文排版 ========== */
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            padding: 24px 0 40px;
        }

        .article-content {
            font-size: 16px;
            line-height: 2;
            color: var(--text);
        }

        .article-content p {
            margin-bottom: 24px;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin: 32px 0 12px;
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 16px 24px;
            border-left: 4px solid var(--accent);
            background: rgba(212, 175, 106, 0.08);
            border-radius: 0 8px 8px 0;
            color: var(--text-sub);
            font-style: normal;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .article-content li {
            margin-bottom: 8px;
            position: relative;
        }

        .article-content ul li::before {
            content: '';
            position: absolute;
            left: -18px;
            top: 12px;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .article-content ol {
            counter-reset: article-ol;
        }

        .article-content ol li {
            counter-increment: article-ol;
        }

        .article-content ol li::before {
            content: counter(article-ol) '.';
            position: absolute;
            left: -22px;
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
        }

        .article-content a {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-content a:hover {
            color: var(--primary);
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            border: 1px solid var(--border);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .article-content th,
        .article-content td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            text-align: left;
            font-size: 14px;
        }

        .article-content th {
            background: rgba(15, 61, 46, 0.05);
            font-weight: 600;
            color: var(--primary);
        }

        .article-content code {
            background: rgba(15, 61, 46, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
        }

        /* ========== 内容未找到 ========== */
        .not-found {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin: 40px auto;
            max-width: 640px;
        }

        .not-found-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }

        .not-found h2 {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .not-found .btn {
            margin-top: 8px;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            max-width: 960px;
            margin: 0 auto;
            padding: 40px 0 16px;
        }

        .related-divider {
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            margin-bottom: 32px;
        }

        .related-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .related-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }

        .related-header span {
            font-size: 13px;
            color: var(--text-sub);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 22px;
            transition: all var(--transition);
        }

        .related-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .related-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.55;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-date {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* ========== 返回入口 ========== */
        .back-link-wrap {
            max-width: 960px;
            margin: 0 auto;
            padding: 16px 0 40px;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-sub);
            font-weight: 500;
            transition: all var(--transition);
        }

        .back-link:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        .back-link svg {
            width: 16px;
            height: 16px;
        }

        /* ========== 文章页 CTA ========== */
        .article-cta {
            max-width: 960px;
            margin: 0 auto 40px;
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            border-top: 2px solid var(--accent);
        }

        .article-cta h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .article-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 1.6;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark-bg);
            color: #fff;
            padding: 60px 0 0;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: var(--accent);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-contact p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== 表单弹层 ========== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(4px);
            z-index: 200;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-overlay.open {
            display: flex;
        }

        .modal-card {
            background: #fff;
            border-radius: 20px;
            max-width: 460px;
            width: 100%;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            animation: modalIn 0.3s ease;
        }

        @keyframes modalIn {
            from {
                opacity: 0;
                transform: scale(0.95) translateY(20px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .modal-header {
            background: var(--primary);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .modal-header h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .modal-close {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 18px;
            transition: all var(--transition);
        }

        .modal-close:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .modal-body {
            padding: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-group label .required {
            color: var(--danger);
        }

        .form-input,
        .form-select,
        .form-textarea {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 0 14px;
            font-size: 14px;
            color: var(--text);
            background: #fff;
            transition: all var(--transition);
            outline: none;
        }

        .form-input:focus,
        .form-select:focus,
        .form-textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 175, 106, 0.2);
        }

        .form-textarea {
            height: auto;
            min-height: 80px;
            padding: 12px 14px;
            resize: vertical;
        }

        .modal-submit {
            width: 100%;
            margin-top: 8px;
        }

        .privacy-note {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-sub);
            margin-top: 14px;
            justify-content: center;
        }

        .privacy-note svg {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                gap: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .article-title {
                font-size: 24px;
            }

            .article-meta {
                gap: 10px 16px;
            }

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

            .article-cta {
                flex-direction: column;
                text-align: center;
                padding: 28px 24px;
            }

            .breadcrumb .current {
                max-width: 180px;
            }

            .modal-card {
                margin: 10px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                height: 60px;
            }

            .logo {
                font-size: 18px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .nav-cta-btn {
                display: none;
            }

            .article-title {
                font-size: 21px;
            }

            .article-body {
                padding: 16px 0 32px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.9;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .related-card {
                padding: 18px;
            }

            .article-cta h3 {
                font-size: 18px;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #0F3D2E;
      --primary-dark: #0B2A21;
      --gold: #D4AF6A;
      --gold-dark: #B8914A;
      --cream: #FAF7F2;
      --ink: #1F2937;
      --muted: #6B7280;
      --line: #E5DCC8;
      --radius: 12px;
      --shadow-sm: 0 2px 10px rgba(15, 61, 46, 0.06);
      --shadow-md: 0 10px 30px rgba(15, 61, 46, 0.1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--cream);
      color: var(--ink);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: var(--cream);
      border-bottom: 1px solid var(--line);
      transition: box-shadow .2s ease;
    }

    .site-header.scrolled {
      box-shadow: 0 4px 18px rgba(15, 61, 46, 0.08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
      gap: 24px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: var(--gold);
      font-size: 20px;
      font-weight: 700;
      border-radius: 8px;
      letter-spacing: 0;
    }

    .logo-text {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 1px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 36px;
    }

    .nav-link {
      position: relative;
      font-size: 15px;
      font-weight: 500;
      color: var(--muted);
      padding: 6px 2px;
      letter-spacing: .5px;
    }

    .nav-link:hover {
      color: var(--primary);
    }

    .nav-link.active {
      color: var(--primary);
      font-weight: 700;
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 100%;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
    }

    .header-cta {
      margin-left: auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 8px;
      padding: 10px 22px;
      transition: all .2s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn:focus-visible {
      outline: none;
      box-shadow: 0 0 0 4px rgba(212, 175, 106, 0.3);
    }

    .btn-gold {
      background: var(--gold);
      color: var(--primary-dark);
      border-color: var(--gold);
    }

    .btn-gold:hover {
      background: var(--gold-dark);
      border-color: var(--gold-dark);
      color: #fff;
      transform: translateY(-1px);
    }

    .btn-outline {
      background: transparent;
      color: var(--gold);
      border-color: var(--gold);
    }

    .btn-outline:hover {
      background: var(--gold);
      color: var(--primary-dark);
      transform: translateY(-1px);
    }

    .btn-primary {
      background: var(--primary);
      color: var(--gold);
      border-color: var(--primary);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      color: var(--gold);
      transform: translateY(-1px);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      padding: 6px;
      cursor: pointer;
    }

    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--gold);
      margin: 5px 0;
      border-radius: 2px;
      transition: all .25s ease;
    }

    .mobile-nav {
      display: none;
      background: var(--cream);
      border-top: 1px solid var(--line);
      padding: 16px 24px 24px;
    }

    .mobile-nav.open {
      display: block;
    }

    .mobile-nav .nav-link {
      display: block;
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
      font-size: 16px;
    }

    .mobile-nav .nav-link:last-child {
      border-bottom: none;
    }

    .mobile-nav .btn {
      margin-top: 18px;
      width: 100%;
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      background: var(--primary-dark);
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
      background-size: 44px 44px;
      padding: 84px 0 64px;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(212, 175, 106, 0.14);
      border: 1px solid rgba(212, 175, 106, 0.35);
      color: var(--gold);
      font-size: 13px;
      padding: 6px 14px;
      border-radius: 999px;
      letter-spacing: .5px;
      margin-bottom: 20px;
    }

    .hero h1 {
      color: #fff;
      font-size: 44px;
      line-height: 1.2;
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }

    .hero h1 .gold-text {
      color: var(--gold);
    }

    .hero-desc {
      color: rgba(255, 255, 255, 0.82);
      font-size: 16px;
      line-height: 1.9;
      max-width: 520px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 28px;
    }

    .hero-tags {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
      letter-spacing: 1px;
    }

    .hero-tags span {
      color: var(--gold);
    }

    .hero-image {
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid rgba(212, 175, 106, 0.5);
      box-shadow: 0 16px 44px rgba(0, 0, 0, 0.3);
    }

    .hero-image img {
      width: 100%;
      height: 340px;
      object-fit: cover;
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb-wrap {
      border-bottom: 1px solid var(--line);
      background: #fff;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
      padding: 14px 0;
      font-size: 14px;
      color: var(--muted);
    }

    .breadcrumb a {
      color: var(--primary);
      font-weight: 500;
    }

    .breadcrumb a:hover {
      color: var(--gold-dark);
    }

    .breadcrumb .sep {
      color: var(--gold);
      margin: 0 2px;
    }

    .breadcrumb [aria-current="page"] {
      color: var(--ink);
      font-weight: 600;
    }

    /* ===== Section general ===== */
    .section {
      padding: 64px 0;
    }

    .section-title-wrap {
      margin-bottom: 40px;
    }

    .section-title {
      font-size: 30px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: .5px;
      margin-bottom: 8px;
    }

    .section-subtitle {
      color: var(--muted);
      font-size: 15px;
      max-width: 640px;
      line-height: 1.8;
    }

    .title-bar {
      width: 48px;
      height: 3px;
      background: var(--gold);
      border-radius: 3px;
      margin-bottom: 14px;
    }

    /* ===== Intro section ===== */
    .intro-section {
      background: #fff;
      border-bottom: 1px solid var(--line);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 48px;
      align-items: start;
    }

    .intro-copy h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 14px;
    }

    .intro-copy h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin: 24px 0 10px;
    }

    .intro-copy p {
      color: #374151;
      margin-bottom: 16px;
      line-height: 1.9;
    }

    .check-list {
      list-style: none;
      margin: 12px 0;
    }

    .check-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 10px;
      line-height: 1.8;
      color: #374151;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 12px;
      width: 10px;
      height: 10px;
      background: var(--gold);
      border-radius: 50%;
    }

    .intro-side {
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 24px;
      border-top: 3px solid var(--gold);
    }

    .intro-side img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: 12px;
      margin-bottom: 20px;
    }

    .intro-side h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 14px;
    }

    .key-list {
      list-style: none;
    }

    .key-list li {
      display: flex;
      gap: 10px;
      padding: 10px 0;
      border-bottom: 1px dashed var(--line);
      color: #374151;
      font-size: 15px;
      line-height: 1.7;
    }

    .key-list li:last-child {
      border-bottom: none;
    }

    .key-list .key-dot {
      color: var(--gold);
      flex-shrink: 0;
      margin-top: 2px;
      font-size: 14px;
    }

    /* ===== Feature cards ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 30px 26px;
      position: relative;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      border-top: 2px solid var(--gold);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--gold);
    }

    .feature-num {
      font-size: 13px;
      font-weight: 700;
      color: var(--gold-dark);
      letter-spacing: 1px;
      margin-bottom: 10px;
    }

    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .feature-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    .feature-card ul {
      list-style: none;
    }

    .feature-card ul li {
      position: relative;
      padding-left: 18px;
      color: #374151;
      font-size: 14px;
      margin-bottom: 6px;
      line-height: 1.7;
    }

    .feature-card ul li::before {
      content: "·";
      color: var(--gold);
      font-weight: 700;
      position: absolute;
      left: 0;
      font-size: 18px;
      line-height: 1.2;
    }

    /* ===== Scenario / Flow ===== */
    .scenario-section {
      background: var(--primary-dark);
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 44px 44px;
    }

    .scenario-section .section-title {
      color: #fff;
    }

    .scenario-section .section-subtitle {
      color: rgba(255, 255, 255, 0.7);
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 48px;
    }

    .scenario-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(212, 175, 106, 0.25);
      border-radius: 14px;
      padding: 26px;
      transition: background .2s ease, border-color .2s ease;
    }

    .scenario-card:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(212, 175, 106, 0.55);
    }

    .scenario-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(212, 175, 106, 0.15);
      color: var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .scenario-card h3 {
      color: #fff;
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .scenario-card p {
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      line-height: 1.8;
    }

    .flow-title {
      color: var(--gold);
      font-size: 18px;
      font-weight: 700;
      text-align: center;
      margin-bottom: 28px;
      letter-spacing: 1px;
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .flow-step {
      text-align: center;
      position: relative;
      padding: 0 10px;
    }

    .flow-step::after {
      content: "→";
      position: absolute;
      right: -16px;
      top: 24px;
      color: rgba(212, 175, 106, 0.5);
      font-size: 18px;
    }

    .flow-step:last-child::after {
      display: none;
    }

    .step-num {
      width: 48px;
      height: 48px;
      margin: 0 auto 12px;
      border-radius: 50%;
      background: var(--gold);
      color: var(--primary-dark);
      font-weight: 700;
      font-size: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .flow-step h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .flow-step p {
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
      line-height: 1.7;
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 12px;
      margin-bottom: 14px;
      overflow: hidden;
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      transition: background .2s ease;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary:hover {
      background: var(--cream);
    }

    .faq-item summary .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid var(--gold);
      color: var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 400;
      transition: transform .25s ease, background .25s ease, color .25s ease;
    }

    .faq-item[open] summary .faq-icon {
      transform: rotate(45deg);
      background: var(--gold);
      color: var(--primary-dark);
    }

    .faq-answer {
      padding: 0 22px 20px;
      color: #4B5563;
      font-size: 14px;
      line-height: 1.85;
      border-top: 1px solid var(--line);
      margin: 0 0 0;
    }

    .faq-answer p {
      padding-top: 16px;
    }

    /* ===== CTA banner ===== */
    .cta-banner {
      background: var(--gold);
      border-radius: 16px;
      padding: 40px 44px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      flex-wrap: wrap;
      margin: 24px 0;
    }

    .cta-banner h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .cta-banner p {
      color: rgba(11, 42, 33, 0.75);
      font-size: 15px;
      line-height: 1.7;
      max-width: 640px;
    }

    .cta-banner .btn {
      background: var(--primary-dark);
      color: var(--gold);
      border-color: var(--primary-dark);
    }

    .cta-banner .btn:hover {
      background: var(--primary);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.7);
      margin-top: 64px;
      border-top: 2px solid var(--gold);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding: 56px 0 40px;
    }

    .footer-brand .logo {
      margin-bottom: 14px;
    }

    .footer-brand .logo-icon {
      background: rgba(255, 255, 255, 0.1);
      color: var(--gold);
    }

    .footer-brand .logo-text {
      color: #fff;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-links h4,
    .footer-contact h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .footer-links ul {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.62);
      font-size: 14px;
      line-height: 1.7;
    }

    .footer-links a:hover {
      color: var(--gold);
    }

    .footer-contact p {
      font-size: 14px;
      margin-bottom: 8px;
      line-height: 1.7;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 20px 0;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .hero-image img {
        height: 300px;
      }

      .intro-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

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

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

      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
      }

      .flow-step::after {
        display: none;
      }

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

    @media (max-width: 768px) {
      .nav-links,
      .header-cta {
        display: none;
      }

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

      .hero {
        padding: 60px 0 48px;
      }

      .hero h1 {
        font-size: 34px;
      }

      .hero-desc {
        font-size: 15px;
      }

      .section {
        padding: 48px 0;
      }

      .section-title {
        font-size: 26px;
      }

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

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

      .flow-steps {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
      }

      .cta-banner {
        padding: 32px 24px;
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 40px 0 30px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .header-inner {
        height: 64px;
      }

      .logo-text {
        font-size: 19px;
      }

      .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 18px;
      }

      .hero h1 {
        font-size: 30px;
      }

      .hero-image img {
        height: 220px;
      }

      .breadcrumb {
        font-size: 13px;
      }
    }

/* roulang page: category2 */
:root {
      --brand: #0F3D2E;
      --brand-dark: #0B2A21;
      --golden: #D4AF6A;
      --golden-deep: #B8914A;
      --cream: #FAF7F2;
      --ink: #1F2937;
      --ink-soft: #6B7280;
      --line: #E5DCC8;
      --brick: #B23B3B;
      --radius: 12px;
      --shadow-sm: 0 1px 2px rgba(15, 61, 46, 0.06);
      --shadow-md: 0 4px 12px rgba(15, 61, 46, 0.10);
      --shadow-lg: 0 10px 30px rgba(15, 61, 46, 0.14);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--cream);
      color: var(--ink);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }
    button { cursor: pointer; font-family: inherit; }
    input, textarea, select { font-family: inherit; }

    .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

    /* Header / Nav */
    .site-header {
      position: sticky; top: 0; z-index: 100;
      background: rgba(250, 247, 242, 0.96);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--line);
      transition: box-shadow 0.3s ease;
    }
    .site-header.scrolled { box-shadow: var(--shadow-sm); }
    .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
    .logo { display: flex; align-items: center; gap: 10px; }
    .logo-icon {
      width: 36px; height: 36px; border-radius: 8px;
      background: var(--brand); color: var(--golden);
      display: flex; align-items: center; justify-content: center;
      font-size: 18px; font-weight: 700;
    }
    .logo-text { font-size: 22px; font-weight: 700; color: var(--brand); letter-spacing: 1px; }

    .nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
    .nav-link {
      position: relative; font-size: 15px; font-weight: 400;
      color: var(--ink-soft); padding: 22px 0 20px;
      transition: color 0.2s ease;
      border-bottom: 2px solid transparent;
    }
    .nav-link:hover { color: var(--brand); }
    .nav-link.active { color: var(--brand); font-weight: 600; border-bottom-color: var(--golden); }
    .nav-cta {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid var(--golden); color: var(--brand);
      padding: 8px 20px; border-radius: 8px;
      font-size: 14px; font-weight: 600;
      transition: all 0.2s ease;
      background: transparent;
    }
    .nav-cta:hover { background: var(--golden); color: var(--brand-dark); border-color: var(--golden); }
    .nav-cta:focus, .nav-link:focus { outline: 2px solid rgba(212, 175, 106, 0.6); outline-offset: 2px; }

    .menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 8px; }
    .menu-toggle span { width: 22px; height: 2px; background: var(--golden-deep); transition: all 0.3s ease; }
    .mobile-menu {
      display: none; position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
      background: var(--cream); z-index: 99;
      flex-direction: column; padding: 32px 24px;
      transform: translateY(-8px); opacity: 0; pointer-events: none;
      transition: all 0.25s ease;
    }
    .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .mobile-menu a {
      display: block; padding: 16px 0; font-size: 18px; font-weight: 600;
      color: var(--ink); border-bottom: 1px solid var(--line);
      transition: color 0.2s;
    }
    .mobile-menu a:hover { color: var(--golden-deep); }
    .mobile-menu a.active { color: var(--brand); }
    .mobile-menu .menu-contact { margin-top: 24px; color: var(--ink-soft); font-size: 14px; }

    /* Hero */
    .page-hero {
      background: var(--brand-dark);
      background-image:
        linear-gradient(rgba(212, 175, 106, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 175, 106, 0.06) 1px, transparent 1px);
      background-size: 48px 48px;
      color: #fff;
      padding: 72px 0 64px;
      position: relative;
      overflow: hidden;
    }
    .page-hero::after {
      content: '';
      position: absolute; right: -100px; bottom: -100px;
      width: 340px; height: 340px; border-radius: 50%;
      background: rgba(212, 175, 106, 0.12);
    }
    .hero-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
    .hero-breadcrumb a { color: rgba(255,255,255,0.7); transition: color 0.2s; }
    .hero-breadcrumb a:hover { color: var(--golden); }
    .hero-breadcrumb .sep { color: var(--golden); }
    .hero-title {
      font-size: 42px; font-weight: 800; line-height: 1.3;
      margin-bottom: 16px; letter-spacing: 1px;
      color: #fff;
    }
    .hero-title span { color: var(--golden); }
    .hero-sub { font-size: 17px; line-height: 1.9; color: rgba(255,255,255,0.85); max-width: 680px; margin-bottom: 32px; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: rgba(255,255,255,0.75); }
    .hero-tags span { display: flex; align-items: center; gap: 8px; }
    .hero-tags span::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--golden); }

    /* Section General */
    .section { padding: 72px 0; }
    .section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
    .section-tag {
      display: inline-block; font-size: 13px; font-weight: 600;
      color: var(--golden-deep); background: rgba(212,175,106,0.12);
      padding: 4px 14px; border-radius: 999px; margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .section-title { font-size: 36px; font-weight: 700; color: var(--brand); line-height: 1.4; margin-bottom: 12px; }
    .section-desc { font-size: 16px; color: var(--ink-soft); line-height: 1.9; }

    /* Cards */
    .card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .feature-card {
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
      padding: 36px 32px; position: relative; overflow: hidden;
      transition: all 0.2s ease;
    }
    .feature-card::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
      background: linear-gradient(90deg, var(--golden), var(--golden-deep));
    }
    .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--golden); }
    .feature-icon {
      width: 52px; height: 52px; border-radius: 12px;
      background: rgba(212,175,106,0.15); color: var(--brand);
      display: flex; align-items: center; justify-content: center;
      font-size: 24px; margin-bottom: 20px;
    }
    .feature-card h3 { font-size: 20px; font-weight: 700; color: var(--brand); margin-bottom: 10px; }
    .feature-card p { font-size: 15px; color: var(--ink-soft); line-height: 1.8; }

    /* Cover image block */
    .info-showcase { background: #fff; border-radius: var(--radius); border: 1px solid var(--line); overflow: hidden; transition: all 0.2s ease; }
    .info-showcase:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
    .info-showcase .cover img { width: 100%; height: 220px; object-fit: cover; }
    .info-body { padding: 24px; }
    .info-body .badge {
      display: inline-block; font-size: 12px; font-weight: 600;
      background: var(--golden); color: var(--brand-dark);
      padding: 3px 12px; border-radius: 6px; margin-bottom: 12px;
    }
    .info-body h3 { font-size: 18px; font-weight: 700; color: var(--brand); margin-bottom: 8px; line-height: 1.6; }
    .info-body p { font-size: 14px; color: var(--ink-soft); line-height: 1.8; margin-bottom: 16px; }
    .info-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 14px; }
    .info-meta a { color: var(--brand); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; transition: color 0.2s; }
    .info-meta a:hover { color: var(--golden-deep); }

    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

    /* Timeline / Process */
    .process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
    .process-step { text-align: center; padding: 24px 16px; position: relative; }
    .process-step .num {
      width: 48px; height: 48px; margin: 0 auto 16px;
      border-radius: 50%; background: var(--brand); color: var(--golden);
      display: flex; align-items: center; justify-content: center;
      font-weight: 700; font-size: 18px;
      border: 2px solid var(--golden);
    }
    .process-step h4 { font-size: 17px; font-weight: 700; color: var(--brand); margin-bottom: 8px; }
    .process-step p { font-size: 14px; color: var(--ink-soft); line-height: 1.7; }

    /* FAQ */
    .faq-grid { max-width: 860px; margin: 0 auto; }
    details.faq-item {
      background: #fff; border: 1px solid var(--line); border-radius: 10px;
      margin-bottom: 14px; overflow: hidden;
      transition: box-shadow 0.2s ease;
    }
    details.faq-item[open] { border-color: var(--golden); box-shadow: var(--shadow-sm); }
    details.faq-item summary {
      display: flex; align-items: center; justify-content: space-between;
      padding: 20px 24px; font-size: 16px; font-weight: 600;
      color: var(--brand); cursor: pointer; list-style: none;
    }
    details.faq-item summary::-webkit-details-marker { display: none; }
    .faq-icon {
      width: 22px; height: 22px; border-radius: 50%;
      border: 2px solid var(--golden); color: var(--golden-deep);
      display: flex; align-items: center; justify-content: center;
      font-size: 16px; font-weight: 700;
      transition: transform 0.3s ease; flex-shrink: 0;
    }
    details.faq-item[open] .faq-icon { transform: rotate(45deg); }
    details.faq-item .answer { padding: 0 24px 20px; font-size: 14px; color: var(--ink-soft); line-height: 1.9; }

    /* CTA */
    .cta-banner {
      background: linear-gradient(135deg, rgba(212,175,106,0.15) 0%, rgba(212,175,106,0.05) 100%);
      border: 1px solid var(--line); border-radius: 16px;
      padding: 48px 40px; display: flex; align-items: center; justify-content: space-between;
      gap: 32px; flex-wrap: wrap;
    }
    .cta-banner h2 { font-size: 28px; font-weight: 700; color: var(--brand); margin-bottom: 8px; }
    .cta-banner p { font-size: 15px; color: var(--ink-soft); }
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 12px 28px; border-radius: 8px; font-size: 15px; font-weight: 600;
      transition: all 0.2s ease; border: 1px solid transparent;
    }
    .btn-primary { background: var(--golden); color: var(--brand-dark); }
    .btn-primary:hover { background: var(--brand); color: var(--golden); border-color: var(--brand); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(15,61,46,0.2); }
    .btn-outline { border-color: var(--golden); color: var(--brand); background: transparent; }
    .btn-outline:hover { background: var(--golden); color: var(--brand-dark); }
    .btn:focus { outline: none; box-shadow: 0 0 0 4px rgba(212,175,106,0.3); }
    .btn:active { transform: translateY(1px); }

    /* Filter bar */
    .filter-bar { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 36px; }
    .filter-btn {
      font-size: 13px; font-weight: 500; color: var(--ink-soft);
      background: #fff; border: 1px solid var(--line);
      padding: 6px 18px; border-radius: 999px;
      transition: all 0.2s ease;
    }
    .filter-btn:hover, .filter-btn.active { background: var(--brand); color: var(--golden); border-color: var(--brand); }

    /* Footer */
    .site-footer { background: var(--brand-dark); color: rgba(255,255,255,0.8); padding: 64px 0 0; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 32px; padding-bottom: 40px; }
    .footer-brand .logo { margin-bottom: 16px; }
    .footer-brand .logo-text { color: #fff; }
    .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 280px; }
    .footer-links h4, .footer-contact h4 { font-size: 15px; font-weight: 700; color: var(--golden); margin-bottom: 16px; }
    .footer-links ul { list-style: none; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); transition: color 0.2s; }
    .footer-links a:hover { color: var(--golden); }
    .footer-contact p { font-size: 14px; color: rgba(255,255,255,0.65); margin-bottom: 8px; }
    .footer-bottom {
      border-top: 1px solid rgba(212,175,106,0.3);
      padding: 20px 0;
    }
    .footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.45); }

    /* Modal */
    .modal-overlay {
      position: fixed; top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
      z-index: 1000; display: none; align-items: center; justify-content: center;
      padding: 20px;
    }
    .modal-overlay.active { display: flex; }
    .modal-card {
      background: #fff; border-radius: 16px; max-width: 480px; width: 100%;
      overflow: hidden; box-shadow: var(--shadow-lg);
    }
    .modal-head {
      background: var(--brand); color: #fff; padding: 20px 24px;
      display: flex; align-items: center; justify-content: space-between;
    }
    .modal-head h3 { font-size: 18px; font-weight: 700; }
    .modal-close { width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.2); color: #fff; border: none; font-size: 18px; display: flex; align-items: center; justify-content: center; transition: background 0.2s; }
    .modal-close:hover { background: rgba(255,255,255,0.35); }
    .modal-body { padding: 32px 24px; }
    .form-group { margin-bottom: 20px; }
    .form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
    .form-group label .star { color: var(--brick); }
    .form-control {
      width: 100%; height: 44px; border: 1px solid var(--line); border-radius: 8px;
      padding: 0 16px; font-size: 15px; color: var(--ink);
      transition: all 0.2s ease; background: var(--cream);
    }
    .form-control:focus { outline: none; border-color: var(--golden); box-shadow: 0 0 0 3px rgba(212,175,106,0.25); background: #fff; }
    textarea.form-control { height: 88px; padding: 12px 16px; resize: vertical; }
    .privacy-note { font-size: 12px; color: var(--ink-soft); display: flex; align-items: center; gap: 4px; margin-top: 14px; }

    /* Responsive */
    @media (max-width: 1024px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .container { padding: 0 20px; }
      .nav-links, .nav-cta { display: none; }
      .menu-toggle { display: flex; }
      .mobile-menu { display: flex; }
      .hero-title { font-size: 32px; }
      .section { padding: 56px 0; }
      .section-title { font-size: 28px; }
      .card-grid { grid-template-columns: 1fr; }
      .grid-3 { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr 1fr; }
      .cta-banner { padding: 32px 24px; justify-content: center; text-align: center; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
      .page-hero { padding: 56px 0 48px; }
    }
    @media (max-width: 520px) {
      .hero-title { font-size: 28px; }
      .hero-tags { gap: 12px; }
      .process-steps { grid-template-columns: 1fr; }
      .btn { width: 100%; justify-content: center; }
      .cta-banner .btn { width: auto; }
    }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
      --color-primary: #0F3D2E;
      --color-primary-dark: #0B2A21;
      --color-gold: #D4AF6A;
      --color-gold-dark: #B8914A;
      --color-cream: #FAF7F2;
      --color-border: #E5DCC8;
      --color-ink: #1F2937;
      --color-sub: #6B7280;
      --color-error: #B23B3B;
      --radius-sm: 8px;
      --radius-md: 12px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
      --transition: 200ms ease;
    }

    /* ===== 基础 Reset ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      font-size: 16px;
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
      background-color: var(--color-cream);
      color: var(--color-ink);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition);
    }

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

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
      width: 100%;
    }

    /* ===== 顶部导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: var(--color-cream);
      border-bottom: 1px solid var(--color-border);
      transition: box-shadow var(--transition);
    }

    .site-header.scrolled {
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
      gap: 2rem;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.65rem;
      flex-shrink: 0;
    }

    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: var(--color-primary);
      color: var(--color-gold);
      border-radius: var(--radius-sm);
      font-size: 1.15rem;
      font-weight: 700;
    }

    .logo-text {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: 0.02em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.75rem;
    }

    .nav-link {
      position: relative;
      font-size: 0.95rem;
      font-weight: 400;
      color: var(--color-sub);
      padding: 0.4rem 0.15rem;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--color-primary);
    }

    .nav-link.active {
      color: var(--color-primary);
      font-weight: 600;
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -3px;
      width: 100%;
      height: 2px;
      background: var(--color-gold);
      border-radius: 2px;
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      padding: 0.5rem 1.25rem;
      border: 1px solid var(--color-gold);
      border-radius: var(--radius-sm);
      color: var(--color-primary);
      font-size: 0.9rem;
      font-weight: 500;
      white-space: nowrap;
      transition: all var(--transition);
    }

    .header-cta:hover {
      background: var(--color-gold);
      border-color: var(--color-gold);
    }

    .header-cta:focus-visible,
    .btn-gold:focus-visible,
    .btn-outline-dark:focus-visible {
      outline: none;
      box-shadow: 0 0 0 4px rgba(212, 175, 106, 0.35);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      background: transparent;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      cursor: pointer;
      padding: 8px 0;
    }

    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--color-gold-dark);
      margin: 3.5px auto;
      border-radius: 2px;
      transition: all 0.3s;
    }

    .menu-toggle.active span:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    }

    /* ===== 移动端菜单 ===== */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 76px;
      left: 0;
      right: 0;
      background: var(--color-cream);
      border-bottom: 1px solid var(--color-border);
      padding: 1rem 1.5rem 1.25rem;
      z-index: 40;
      box-shadow: var(--shadow-sm);
      flex-direction: column;
      gap: 0.1rem;
    }

    .mobile-menu.open {
      display: flex;
    }

    .mobile-menu a {
      padding: 0.75rem 0.5rem;
      font-size: 1rem;
      font-weight: 500;
      color: var(--color-sub);
      border-bottom: 1px solid rgba(229, 220, 200, 0.5);
    }

    .mobile-menu a:last-child {
      border-bottom: none;
    }

    .mobile-menu a.active {
      color: var(--color-primary);
      font-weight: 600;
      border-left: 3px solid var(--color-gold);
      padding-left: 0.75rem;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 1rem;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, 0.7);
    }

    .breadcrumb a:hover {
      color: var(--color-gold);
    }

    .breadcrumb .sep {
      color: var(--color-gold);
    }

    /* ===== 页面 Hero ===== */
    .page-hero {
      background-color: var(--color-primary);
      background-image:
        linear-gradient(135deg, rgba(11, 42, 33, 0.92) 0%, rgba(15, 61, 46, 0.82) 50%, rgba(15, 61, 46, 0.72) 100%),
        url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 4.5rem 0 4.25rem;
    }

    .page-hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--color-gold), transparent 65%);
    }

    .page-hero-content {
      max-width: 720px;
      position: relative;
      z-index: 1;
    }

    .page-hero h1 {
      color: #fff;
      font-size: 2.6rem;
      font-weight: 700;
      line-height: 1.25;
      margin: 0 0 0.9rem;
    }

    .page-hero .subtitle {
      color: rgba(255, 255, 255, 0.82);
      font-size: 1.05rem;
      line-height: 1.9;
      max-width: 62ch;
    }

    /* ===== 区块标题 ===== */
    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      font-weight: 500;
      color: #B8914A;
      letter-spacing: 0.12em;
    }

    .section-label::before {
      content: '';
      width: 24px;
      height: 2px;
      background: var(--color-gold);
      border-radius: 2px;
      flex-shrink: 0;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-primary);
      margin: 0.5rem 0 0.6rem;
      line-height: 1.3;
    }

    .section-subtitle {
      color: var(--color-sub);
      font-size: 1rem;
      line-height: 1.85;
    }

    /* ===== FAQ 手风琴 ===== */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item:hover {
      border-color: var(--color-gold);
      box-shadow: var(--shadow-sm);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1.25rem 1.5rem;
      cursor: pointer;
      font-weight: 500;
      font-size: 1rem;
      color: var(--color-primary);
      list-style: none;
      user-select: none;
      line-height: 1.6;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 26px;
      height: 26px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1.5px solid var(--color-gold);
      border-radius: 50%;
      color: var(--color-gold-dark);
      font-size: 1.05rem;
      font-weight: 400;
      transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
      line-height: 1;
    }

    .faq-item[open] summary .faq-icon {
      transform: rotate(45deg);
      background: var(--color-gold);
      color: var(--color-primary);
    }

    .faq-answer {
      padding: 0 1.5rem 1.4rem;
      color: var(--color-sub);
      font-size: 0.95rem;
      line-height: 1.85;
    }

    .faq-answer p + p {
      margin-top: 0.6rem;
    }

    /* ===== 联系卡片 ===== */
    .contact-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 100px;
    }

    .contact-card-header {
      background: var(--color-primary);
      padding: 1.4rem 1.6rem;
      position: relative;
    }

    .contact-card-header::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--color-gold), transparent);
    }

    .contact-card-header h3 {
      color: #fff;
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.3rem;
    }

    .contact-card-header p {
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.85rem;
      line-height: 1.6;
    }

    .contact-card-body {
      padding: 1.6rem;
    }

    .form-group {
      margin-bottom: 1.05rem;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--color-primary);
      margin-bottom: 0.35rem;
    }

    .form-group .req {
      color: var(--color-error);
    }

    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 0.9rem;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      background: #fff;
      font-size: 0.925rem;
      color: var(--color-ink);
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .form-control::placeholder {
      color: #9CA3AF;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--color-gold);
      box-shadow: 0 0 0 3px rgba(212, 175, 106, 0.25);
    }

    textarea.form-control {
      height: auto;
      min-height: 100px;
      padding: 0.7rem 0.9rem;
      resize: vertical;
    }

    select.form-control {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 0.9rem center;
      padding-right: 2.4rem;
      cursor: pointer;
    }

    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
      width: 100%;
      height: 46px;
      background: linear-gradient(135deg, #D4AF6A, #B8914A);
      color: var(--color-primary);
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: all var(--transition);
    }

    .btn-gold:hover {
      background: var(--color-gold);
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(212, 175, 106, 0.3);
    }

    .btn-gold:active {
      transform: translateY(0);
    }

    .privacy-note {
      display: flex;
      align-items: flex-start;
      gap: 0.45rem;
      font-size: 0.75rem;
      color: #9CA3AF;
      line-height: 1.6;
      margin-top: 0.85rem;
    }

    .privacy-note svg {
      flex-shrink: 0;
      margin-top: 0.2rem;
    }

    /* ===== 支持服务区 ===== */
    .support-section {
      background: #fff;
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }

    .support-points {
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      margin-top: 1rem;
    }

    .support-points li {
      display: flex;
      align-items: flex-start;
      gap: 0.7rem;
      font-size: 0.92rem;
      color: var(--color-sub);
      line-height: 1.7;
    }

    .support-points .dot {
      flex-shrink: 0;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-gold);
      margin-top: 0.55rem;
    }

    /* ===== CTA 横幅 ===== */
    .cta-banner {
      background: linear-gradient(90deg, rgba(212, 175, 106, 0.2), rgba(212, 175, 106, 0.08));
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 2.5rem 2.75rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 2rem;
      position: relative;
      overflow: hidden;
    }

    .cta-banner::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 3px;
      background: linear-gradient(180deg, var(--color-gold), transparent);
    }

    .cta-banner h2 {
      color: var(--color-primary);
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 0.3rem;
    }

    .cta-banner p {
      color: var(--color-sub);
      font-size: 0.95rem;
    }

    .btn-outline-dark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.6rem 1.6rem;
      background: transparent;
      border: 1.5px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.92rem;
      white-space: nowrap;
      transition: all var(--transition);
    }

    .btn-outline-dark:hover {
      background: var(--color-primary);
      border-color: var(--color-primary);
      color: var(--color-gold);
    }

    .btn-outline-dark:active {
      transform: translateY(1px);
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--color-primary-dark);
      color: rgba(255, 255, 255, 0.75);
      padding: 3.5rem 0 0;
      margin-top: 5rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 2.5rem;
      padding-bottom: 2.5rem;
    }

    .footer-brand .logo {
      margin-bottom: 0.85rem;
    }

    .footer-brand .logo-icon {
      background: rgba(255, 255, 255, 0.1);
    }

    .footer-brand .logo-text {
      color: #fff;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.55);
      max-width: 36ch;
    }

    .footer-links h4,
    .footer-contact h4 {
      color: #fff;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 1rem;
      padding-bottom: 0.5rem;
      position: relative;
    }

    .footer-links h4::after,
    .footer-contact h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--color-gold);
      border-radius: 2px;
    }

    .footer-links ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .footer-links a,
    .footer-contact p {
      font-size: 0.88rem;
      color: rgba(255, 255, 255, 0.55);
      transition: color var(--transition);
    }

    .footer-links a:hover {
      color: var(--color-gold);
    }

    .footer-contact p {
      margin-bottom: 0.3rem;
      line-height: 1.7;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 1.2rem 0;
      text-align: center;
      font-size: 0.8rem;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ===== 响应式断点 ===== */
    @media (max-width: 1024px) {
      .container {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
      }

      .page-hero h1 {
        font-size: 2.1rem;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links,
      .header-cta {
        display: none;
      }

      .menu-toggle {
        display: block;
      }

      .header-inner {
        height: 64px;
      }

      .mobile-menu {
        top: 64px;
      }

      .page-hero {
        padding: 3rem 0 2.75rem;
      }

      .page-hero h1 {
        font-size: 1.85rem;
      }

      .page-hero .subtitle {
        font-size: 0.95rem;
      }

      .section-title {
        font-size: 1.6rem;
      }

      .cta-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem 1.5rem;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
      }

      .site-footer {
        margin-top: 3.5rem;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 1rem;
        padding-right: 1rem;
      }

      .page-hero h1 {
        font-size: 1.6rem;
      }

      .faq-item summary {
        padding: 1rem 1.1rem;
        font-size: 0.92rem;
      }

      .faq-answer {
        padding: 0 1.1rem 1.1rem;
        font-size: 0.88rem;
      }

      .contact-card-body {
        padding: 1.25rem;
      }

      .logo-text {
        font-size: 1.15rem;
      }

      .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 1rem;
      }
    }