/* roulang page: index */
:root {
  --brand: #0B3B2C;
  --brand-dark: #072B20;
  --brand-light: #14513D;
  --gold: #C2994B;
  --gold-dark: #B38635;
  --cream: #F6F4EE;
  --ink: #1A1D1C;
  --warmgray: #5B6461;
  --pale: #A8A29E;
  --line: #E4DED2;
  --tagbg: #EFE9DD;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow-card: 0 2px 8px rgba(11,59,44,0.04);
  --shadow-hover: 0 12px 32px rgba(11,59,44,0.10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif; background: #F6F4EE; color: #1A1D1C; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
h1,h2,h3,h4 { font-family: 'Noto Serif SC', 'Songti SC', SimSun, serif; line-height: 1.3; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 16px; } }

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 24px;
  border-radius: var(--radius-btn); background: var(--brand); color: #fff; font-weight: 600; font-size: 15px;
  border: 0; cursor: pointer; transition: all .25s ease;
}
.btn-primary:hover { background: var(--gold); color: var(--brand-dark); box-shadow: 0 8px 20px rgba(194,153,75,.25); }
.btn-primary:active { transform: scale(.98); }
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 24px;
  border-radius: var(--radius-btn); background: transparent; color: var(--brand); font-weight: 600; font-size: 15px;
  border: 1px solid var(--brand-light); cursor: pointer; transition: all .25s ease;
}
.btn-secondary:hover { background: var(--brand); color: #fff; }
.btn-secondary:active { transform: scale(.98); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }

.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: 64px; transition: all .3s ease; }
.site-header.scrolled { background: rgba(246,244,238,.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: 'Noto Serif SC', serif; font-size: 1.4rem; font-weight: 700; color: var(--brand); letter-spacing: .01em; display: flex; align-items: center; }
.logo .dot { display: inline-block; width: 10px; height: 10px; background: var(--gold); border-radius: 50%; margin-left: 5px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 14px; color: var(--ink); font-weight: 500; position: relative; padding: 4px 2px; transition: color .2s; }
.nav-links a:hover { color: var(--brand); }
.nav-links a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--brand); font-weight: 600; }
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active::before { content: ''; display: inline-block; width: 5px; height: 5px; background: var(--gold); border-radius: 50%; margin-right: 3px; vertical-align: middle; }

.mobile-menu { position: fixed; inset: 0; background: rgba(246,244,238,.98); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); z-index: 90; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 34px; opacity: 0; visibility: hidden; transition: all .35s ease; }
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a { font-family: 'Noto Serif SC', serif; font-size: 1.5rem; color: var(--ink); font-weight: 600; transition: color .2s; }
.mobile-menu a:hover { color: var(--brand); }
.menu-btn { width: 40px; height: 40px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 10px; transition: background .2s; }
.menu-btn:hover { background: rgba(11,59,44,.06); }
.menu-line { display: block; width: 20px; height: 2px; background: var(--brand); margin: 3px auto; transition: all .3s ease; }
body.menu-open .menu-line:nth-child(1) { transform: translateY(5px) rotate(45deg); }
body.menu-open .menu-line:nth-child(2) { opacity: 0; }
body.menu-open .menu-line:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.card { background: #fff; border: 1px solid rgba(228,222,210,.6); border-radius: 16px; box-shadow: var(--shadow-card); transition: all .3s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(194,153,75,.35); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

.stat-number { font-family: 'Noto Serif SC', serif; font-weight: 700; font-size: 64px; line-height: 1; color: var(--gold); letter-spacing: -.02em; }

.scenario-card { position: relative; overflow: hidden; }
.scenario-card::after { content: ''; position: absolute; left: 0; right: 0; top: 35%; bottom: 0; background: url('/assets/images/backpic/back-1.webp') no-repeat center bottom; background-size: cover; opacity: .05; pointer-events: none; border-radius: 0 0 16px 16px; }
.scenario-card > * { position: relative; z-index: 1; }

.faq-item { border-bottom: 1px solid var(--line); position: relative; }
.faq-item::before { content: ''; display: block; width: 0; height: 2px; background: var(--gold); transition: width .35s ease; }
.faq-item.open::before { width: 40px; }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: 24px 4px; cursor: pointer; font-family: 'Noto Serif SC', serif; font-weight: 600; font-size: 1.05rem; color: var(--ink); transition: color .2s; }
.faq-question:hover { color: var(--brand); }
.faq-question::after { content: '+'; font-size: 2rem; font-weight: 400; color: var(--gold); transition: transform .3s ease; line-height: 1; }
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .45s ease; padding: 0 4px; }
.faq-answer-inner { padding: 0 0 24px; color: var(--warmgray); font-size: .95rem; line-height: 1.85; max-width: 720px; }
.faq-item.open .faq-answer { max-height: 600px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root {
      --brand: #0B3B2C;
      --brand-dark: #072B20;
      --brand-light: #14513D;
      --gold: #C2994B;
      --gold-dark: #B38635;
      --ivory: #F6F4EE;
      --ink: #1A1D1C;
      --muted: #5B6461;
      --faint: #A8A29E;
      --line: #E4DED2;
      --tag: #EFE9DD;
      --radius: 16px;
      --shadow-card: 0 2px 8px rgba(11, 59, 44, 0.04);
      --shadow-hover: 0 12px 32px rgba(11, 59, 44, 0.10);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Noto Sans SC', system-ui, sans-serif;
      background: var(--ivory);
      color: var(--ink);
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
    }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    button, input, textarea { font-family: inherit; }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    @media (max-width: 640px) { .container { padding: 0 16px; } }

    /* ============ 按钮 ============ */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 28px;
      background: var(--brand);
      color: #fff;
      font-size: 0.95rem;
      font-weight: 500;
      border: 1px solid var(--brand);
      border-radius: 10px;
      transition: background .25s, color .25s, transform .2s, box-shadow .25s;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--gold);
      border-color: var(--gold);
      color: var(--brand);
      box-shadow: 0 8px 24px rgba(194, 153, 75, 0.30);
    }
    .btn-primary:active { transform: scale(0.98); }
    .btn-primary:focus-visible { outline: 3px solid rgba(194, 153, 75, 0.5); outline-offset: 2px; }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 28px;
      background: #fff;
      color: var(--brand);
      font-size: 0.95rem;
      font-weight: 500;
      border: 1px solid var(--brand-light);
      border-radius: 10px;
      transition: background .25s, color .25s, transform .2s, box-shadow .25s;
      cursor: pointer;
    }
    .btn-secondary:hover { background: var(--brand); color: #fff; box-shadow: var(--shadow-hover); }
    .btn-secondary:active { transform: scale(0.98); }
    .btn-secondary:focus-visible { outline: 3px solid rgba(11, 59, 44, 0.3); outline-offset: 2px; }

    .btn-sm { height: 38px; padding: 0 18px; font-size: 0.85rem; border-radius: 8px; }

    /* ============ 导航 ============ */
    .site-header {
      position: fixed;
      inset: 0 0 auto 0;
      z-index: 100;
      height: 64px;
      background: transparent;
      border-bottom: 1px solid transparent;
      transition: background .3s, box-shadow .3s, border-color .3s;
    }
    .site-header.scrolled {
      background: rgba(246, 244, 238, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom-color: var(--line);
      box-shadow: 0 1px 16px rgba(11, 59, 44, 0.06);
    }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
    .logo {
      font-family: 'Noto Serif SC', serif;
      font-weight: 700;
      font-size: 1.3rem;
      color: var(--brand);
      letter-spacing: 0.01em;
    }
    .logo .dot { display: inline-block; width: 8px; height: 8px; background: var(--gold); border-radius: 50%; margin-left: 5px; }
    .nav-links { display: flex; align-items: center; gap: 28px; }
    .nav-links a {
      font-size: 0.9rem;
      color: rgba(27, 39, 35, 0.78);
      font-weight: 500;
      position: relative;
      padding: 10px 0;
      transition: color .25s;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 4px;
      width: 0;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
      transition: width .25s;
    }
    .nav-links a:hover::after,
    .nav-links a.active::after { width: 100%; }
    .nav-links a:hover,
    .nav-links a.active { color: var(--brand); }

    .menu-btn {
      width: 40px;
      height: 40px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: #fff;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      transition: border-color .25s;
    }
    .menu-btn:hover { border-color: var(--gold); }
    .menu-line { display: block; width: 18px; height: 2px; background: var(--brand); border-radius: 2px; transition: transform .3s, opacity .3s; }
    .menu-btn.open .menu-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .menu-btn.open .menu-line:nth-child(2) { opacity: 0; }
    .menu-btn.open .menu-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

    .mobile-menu {
      position: fixed;
      inset: 0;
      background: rgba(246, 244, 238, 0.98);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      z-index: 99;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 28px;
      opacity: 0;
      visibility: hidden;
      transition: opacity .3s, visibility .3s;
    }
    .mobile-menu.open { opacity: 1; visibility: visible; }
    .mobile-menu a {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--brand);
      transition: color .25s;
    }
    .mobile-menu a:hover { color: var(--gold-dark); }
    .mobile-menu .btn-primary { margin-top: 16px; }

    /* ============ Hero ============ */
    .consult-hero {
      min-height: 90vh;
      padding: 8rem 0 4rem;
      background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 60%, var(--brand-light) 100%);
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .consult-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(194, 153, 75, 0.18);
      border: 1px solid rgba(194, 153, 75, 0.45);
      color: #F2DFB3;
      font-size: 0.8rem;
      font-weight: 500;
      letter-spacing: 0.08em;
      padding: 6px 14px;
      border-radius: 999px;
    }
    .hero-title {
      font-family: 'Noto Serif SC', serif;
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 700;
      line-height: 1.15;
      margin-top: 1.25rem;
      color: #fff;
    }
    .hero-desc {
      margin-top: 1.25rem;
      font-size: 1.0625rem;
      line-height: 1.9;
      color: rgba(255, 255, 255, 0.78);
      max-width: 30rem;
    }
    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 28px;
      margin-top: 2.25rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.16);
    }
    .hero-meta .item { display: flex; align-items: center; gap: 10px; font-size: 0.875rem; color: rgba(255, 255, 255, 0.85); }
    .hero-meta .item i { color: var(--gold); }

    .hero-visual { position: relative; }
    .hero-visual img {
      width: 100%;
      border-radius: 20px;
      box-shadow: 0 24px 64px rgba(0, 0, 0, 0.30);
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }
    .kpi-card {
      position: absolute;
      bottom: -24px;
      left: -20px;
      background: #fff;
      color: var(--ink);
      border-radius: 14px;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
      padding: 18px 24px;
      max-width: 220px;
      animation: floatY 4s ease-in-out infinite;
    }
    .kpi-card .num { font-family: 'Noto Serif SC', serif; font-size: 1.75rem; font-weight: 700; color: var(--brand); line-height: 1.2; }
    .kpi-card .label { font-size: 0.8rem; color: var(--muted); margin-top: 4px; }
    .kpi-card .gold-line { width: 28px; height: 3px; background: var(--gold); border-radius: 3px; margin-bottom: 8px; }

    @keyframes floatY {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-8px); }
    }
    @media (max-width: 1024px) {
      .consult-hero { padding-top: 7rem; }
      .hero-visual { margin-top: 3rem; }
      .kpi-card { left: 10px; bottom: -20px; }
    }

    /* ============ 区块标题 ============ */
    .section-head { max-width: 720px; margin: 0 auto 3rem; text-align: center; }
    .section-head .eyebrow {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--gold-dark);
      margin-bottom: 0.75rem;
    }
    .section-head h2 {
      font-family: 'Noto Serif SC', serif;
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 700;
      line-height: 1.3;
      color: var(--brand);
    }
    .section-head p { margin-top: 0.875rem; color: var(--muted); font-size: 1rem; line-height: 1.8; }

    /* ============ 卡片通用 ============ */
    .card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
      padding: 32px;
      transition: transform .3s, box-shadow .3s, border-color .3s;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(194, 153, 75, 0.35);
    }
    .card .icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(11, 59, 44, 0.08);
      color: var(--brand);
      font-size: 1.2rem;
      margin-bottom: 20px;
    }
    .card h3 { font-family: 'Noto Serif SC', serif; font-size: 1.25rem; font-weight: 600; color: var(--ink); margin-bottom: 10px; }
    .card p { font-size: 0.9375rem; color: var(--muted); line-height: 1.8; }
    .card .num-tag {
      font-family: 'Noto Serif SC', serif;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: 0.12em;
      display: inline-block;
      margin-bottom: 12px;
    }

    /* ============ 场景卡 ============ */
    .scene-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 36px 32px;
      position: relative;
      overflow: hidden;
      transition: transform .3s, box-shadow .3s;
    }
    .scene-card::before {
      content: '';
      position: absolute;
      bottom: 0;
      right: 0;
      width: 140px;
      height: 140px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      opacity: 0.05;
      border-radius: 20px 0 14px 0;
    }
    .scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .scene-card .sc-tag {
      display: inline-block;
      background: var(--tag);
      color: var(--brand);
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 18px;
    }
    .scene-card h3 { font-family: 'Noto Serif SC', serif; font-size: 1.25rem; font-weight: 600; color: var(--brand); margin-bottom: 10px; }
    .scene-card p { color: var(--muted); font-size: 0.9375rem; line-height: 1.8; }
    .scene-card ul { margin-top: 16px; list-style: none; }
    .scene-card ul li { font-size: 0.875rem; color: var(--muted); padding: 5px 0 5px 22px; position: relative; }
    .scene-card ul li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 700; color: var(--gold); position: absolute; left: 0; font-size: 0.7rem; top: 8px; }

    /* ============ 流程时间线 ============ */
    .process-step {
      position: relative;
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      padding: 28px 24px;
      min-height: 180px;
      transition: transform .3s, box-shadow .3s;
    }
    .process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .process-step .step-num {
      font-family: 'Noto Serif SC', serif;
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: 0.14em;
    }
    .process-step h3 { font-family: 'Noto Serif SC', serif; font-size: 1.1rem; font-weight: 600; color: var(--brand); margin: 10px 0 8px; }
    .process-step p { font-size: 0.875rem; color: var(--muted); line-height: 1.75; }
    .process-line { position: relative; }
    .process-line::after {
      content: '';
      position: absolute;
      top: 50%;
      left: -20px;
      right: -20px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--gold), transparent);
      z-index: -1;
    }

    /* ============ 引语区 ============ */
    .quote-section {
      background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 100%);
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .quote-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      opacity: 0.08;
    }
    .quote-block {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 16px;
      padding: 32px;
      height: 100%;
      backdrop-filter: blur(4px);
      transition: border-color .3s, transform .3s;
    }
    .quote-block:hover { border-color: rgba(194, 153, 75, 0.5); transform: translateY(-4px); }
    .quote-block .quote-mark { font-family: 'Noto Serif SC', serif; font-size: 3rem; line-height: 1; color: var(--gold); }
    .quote-block p { font-size: 1rem; line-height: 1.9; color: rgba(255, 255, 255, 0.88); margin-top: 12px; }

    /* ============ FAQ ============ */
    .faq-wrap { max-width: 800px; margin: 0 auto; }
    .faq-item { border-bottom: 1px solid var(--line); padding: 0; transition: background .3s; }
    .faq-item:first-child { border-top: 1px solid var(--line); }
    .faq-item.open { background: rgba(255, 255, 255, 0.5); }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      padding: 22px 8px;
      cursor: pointer;
      font-family: 'Noto Serif SC', serif;
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--ink);
      line-height: 1.5;
      transition: color .25s;
    }
    .faq-question:hover { color: var(--brand); }
    .faq-item.open .faq-question { color: var(--brand); }
    .faq-question .icon {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--tag);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background .3s, transform .3s;
      font-size: 1rem;
      color: var(--brand);
    }
    .faq-item.open .icon { transform: rotate(45deg); background: var(--brand); color: #fff; }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
    }
    .faq-item.open .faq-answer { max-height: 400px; }
    .faq-answer-inner { padding: 0 8px 24px; color: var(--muted); font-size: 0.9375rem; line-height: 1.85; border-left: 2px solid var(--gold); padding-left: 18px; margin-left: 8px; }

    /* ============ CTA 表单 ============ */
    .cta-section {
      background: linear-gradient(145deg, var(--brand-dark), var(--brand) 60%, var(--brand-light));
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.10;
    }
    .cta-card {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 20px;
      padding: 40px;
      backdrop-filter: blur(8px);
    }
    .form-control {
      width: 100%;
      height: 48px;
      border: 1px solid rgba(255, 255, 255, 0.22);
      background: rgba(255, 255, 255, 0.10);
      color: #fff;
      border-radius: 10px;
      padding: 0 16px;
      font-size: 0.9375rem;
      transition: border-color .25s, box-shadow .25s, background .25s;
      outline: none;
    }
    .form-control::placeholder { color: rgba(255, 255, 255, 0.5); }
    .form-control:focus {
      border-color: var(--gold);
      background: rgba(255, 255, 255, 0.16);
      box-shadow: 0 0 0 3px rgba(194, 153, 75, 0.25);
    }
    textarea.form-control { height: auto; padding: 14px 16px; resize: vertical; }
    .form-label { display: block; font-size: 0.8rem; font-weight: 500; color: rgba(255, 255, 255, 0.75); margin-bottom: 6px; }

    /* ============ 徽章/标签 ============ */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: var(--gold);
      color: var(--brand);
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 999px;
      line-height: 1.6;
    }

    /* ============ 页脚 ============ */
    .footer-rip { background: var(--brand-dark); color: #fff; }
    .footer-rip a { transition: color .25s; }
    .footer-rip a:hover { color: var(--gold); }

    /* ============ 动效 ============ */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
    .reveal.revealed { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      .reveal { opacity: 1; transform: none; transition: none; }
      .kpi-card { animation: none; }
      html { scroll-behavior: auto; }
    }

    /* ============ 其他辅助 ============ */
    .rounded-card { border-radius: var(--radius); }
    .gold-bottom-line { display: block; width: 48px; height: 3px; background: var(--gold); border-radius: 3px; margin-top: 8px; }

/* roulang page: article */
:root {
            --brand: #0B3B2C;
            --brand-dark: #072B20;
            --brand-light: #14513D;
            --gold: #C2994B;
            --gold-strong: #B38635;
            --cream: #F6F4EE;
            --ink: #1A1D1C;
            --warm-gray: #5B6461;
            --faint-gray: #A8A29E;
            --beige-line: #E4DED2;
            --tag-bg: #EFE9DD;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(11, 59, 44, 0.04);
            --shadow-hover: 0 12px 32px rgba(11, 59, 44, 0.10);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, sans-serif;
            color: var(--ink);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        ::selection {
            background: rgba(194, 153, 75, 0.25);
        }

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

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

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-btn);
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1;
            min-height: 44px;
            border: 1px solid var(--brand);
            transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
        }

        .btn-primary:hover {
            background: var(--gold);
            border-color: var(--gold);
            color: var(--brand);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(194, 153, 75, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(194, 153, 75, 0.4);
            outline-offset: 2px;
        }

        .btn-primary.btn-sm {
            padding: 0.625rem 1.25rem;
            font-size: 0.875rem;
            min-height: 38px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--brand);
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1;
            min-height: 44px;
            border: 1px solid var(--brand);
            transition: background 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
        }

        .btn-secondary:hover {
            background: var(--brand);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 59, 44, 0.15);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid rgba(11, 59, 44, 0.3);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            display: flex;
            align-items: center;
            background: transparent;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(246, 244, 238, 0.92);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom-color: rgba(228, 222, 210, 0.9);
            box-shadow: 0 8px 30px rgba(11, 59, 44, 0.06);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand);
            display: flex;
            align-items: center;
            letter-spacing: 0.02em;
            transition: color 0.25s ease;
        }

        .logo:hover {
            color: var(--brand-light);
        }

        .logo .dot {
            width: 6px;
            height: 6px;
            background: var(--gold);
            border-radius: 50%;
            display: inline-block;
            margin-left: 4px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }

        .nav-links {
            gap: 1.75rem;
            margin-left: 2.5rem;
        }

        .nav-links a {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--warm-gray);
            padding: 0.375rem 0;
            letter-spacing: 0.01em;
            transition: color 0.25s ease;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--brand);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--brand);
            font-weight: 600;
        }

        .nav-links a.active::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 4px;
            background: var(--gold);
            border-radius: 50%;
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%);
        }

        .menu-btn {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            color: var(--brand);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(11, 59, 44, 0.15);
            transition: background 0.25s ease, border-color 0.25s ease;
        }

        .menu-btn:hover {
            background: rgba(11, 59, 44, 0.06);
        }

        .menu-btn .menu-line {
            display: block;
            width: 18px;
            height: 2px;
            background: currentColor;
            margin: 2px 0;
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

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

        .menu-btn.active .menu-line:nth-child(2) {
            opacity: 0;
        }

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

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 90;
            background: rgba(7, 43, 32, 0.97);
            display: flex;
            align-items: center;
            justify-content: center;
            visibility: hidden;
            opacity: 0;
            transition: opacity 0.35s ease, visibility 0.35s ease;
        }

        .mobile-menu.open {
            visibility: visible;
            opacity: 1;
        }

        .mobile-menu-panel {
            text-align: center;
            padding: 2rem;
            width: 100%;
            max-width: 480px;
        }

        .mobile-menu-panel nav {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.375rem;
        }

        .mobile-menu-panel nav a {
            position: relative;
            padding: 0.25rem 0.5rem;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding: 10rem 0 4.5rem;
            overflow: hidden;
            background-size: cover;
            background-position: center;
        }

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

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1.5rem;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.25s ease;
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb .current {
            color: var(--gold);
            font-weight: 500;
        }

        .article-title {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            line-height: 1.2;
            max-width: 820px;
            margin-bottom: 1.25rem;
            color: #fff;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        .article-meta .meta-item i {
            color: var(--gold);
        }

        /* ===== Article Content ===== */
        .article-content {
            font-size: 1.0625rem;
            line-height: 1.9;
            color: var(--ink);
        }

        .article-content > * + * {
            margin-top: 1.5rem;
        }

        .article-content h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--brand);
            margin-top: 2.5rem;
            line-height: 1.4;
        }

        .article-content h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--brand);
            margin-top: 2rem;
            line-height: 1.4;
        }

        .article-content h4 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--brand);
            margin-top: 1.75rem;
            line-height: 1.5;
        }

        .article-content p {
            margin-top: 1.25rem;
        }

        .article-content ul,
        .article-content ol {
            margin: 1.25rem 0;
            padding-left: 1.5rem;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-top: 0.5rem;
        }

        .article-content blockquote {
            border-left: 3px solid var(--gold);
            background: var(--tag-bg);
            padding: 1.25rem 1.5rem;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: var(--warm-gray);
            margin: 1.5rem 0;
        }

        .article-content img {
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 24px rgba(11, 59, 44, 0.1);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9375rem;
            margin: 1.5rem 0;
        }

        .article-content th {
            background: var(--brand);
            color: #fff;
            padding: 0.75rem 1rem;
            text-align: left;
            font-weight: 500;
        }

        .article-content td {
            border-bottom: 1px solid var(--beige-line);
            padding: 0.75rem 1rem;
        }

        .article-content code {
            background: var(--tag-bg);
            padding: 0.125rem 0.375rem;
            border-radius: 4px;
            font-family: Consolas, Monaco, 'Courier New', monospace;
            font-size: 0.875em;
            color: var(--brand);
        }

        .article-content pre {
            background: var(--brand-dark);
            color: #fff;
            padding: 1.25rem 1.5rem;
            border-radius: 12px;
            overflow-x: auto;
            font-size: 0.875rem;
            line-height: 1.7;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-content a {
            color: var(--brand);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1px;
            text-decoration-color: var(--gold);
            transition: color 0.25s ease;
        }

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

        /* ===== Tag Pill ===== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.375rem 0.875rem;
            border-radius: 999px;
            background: var(--tag-bg);
            color: var(--brand);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .tag-pill:hover {
            border-color: rgba(194, 153, 75, 0.5);
            background: #fff;
            transform: translateY(-1px);
        }

        /* ===== Related Card ===== */
        .related-card {
            background: #fff;
            border: 1px solid var(--beige-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .related-card .card-img {
            aspect-ratio: 4 / 3;
            background: var(--tag-bg);
            overflow: hidden;
            flex-shrink: 0;
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .related-card:hover .card-img img {
            transform: scale(1.04);
        }

        .related-card .card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card .card-title {
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 0.5rem;
            transition: color 0.25s ease;
        }

        .related-card:hover .card-title {
            color: var(--brand);
        }

        .related-card .card-excerpt {
            font-size: 0.875rem;
            color: var(--warm-gray);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 1rem;
        }

        .related-card .card-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            transition: color 0.25s ease, gap 0.25s ease;
        }

        .related-card .card-link:hover {
            color: var(--gold-strong);
            gap: 0.625rem;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: 5.5rem 0;
            text-align: center;
            background: var(--brand-dark);
            background-image: linear-gradient(135deg, rgba(7, 43, 32, 0.97), rgba(11, 59, 44, 0.92)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 60px;
            background: linear-gradient(180deg, transparent, var(--gold));
        }

        .cta-section h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        /* ===== Reveal ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .article-hero {
                min-height: 380px;
                padding: 8rem 0 3.5rem;
            }
        }

        @media (max-width: 640px) {
            .article-hero {
                min-height: 340px;
                padding: 7rem 0 3rem;
            }

            .article-title {
                font-size: 1.625rem;
            }

            .article-meta {
                gap: 0.875rem;
            }

            .cta-section {
                padding: 3.5rem 0;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
    :root {
      --brand: #0B3B2C;
      --brand-deep: #072B20;
      --brand-light: #14513D;
      --gold: #C2994B;
      --gold-strong: #B38635;
      --cream: #F6F4EE;
      --ink: #1A1D1C;
      --warmgray: #5B6461;
      --dim: #A8A29E;
      --linen: #E4DED2;
      --sand: #EFE9DD;
      --card-radius: 16px;
      --btn-radius: 10px;
      --shadow-card: 0 2px 8px rgba(11, 59, 44, 0.04);
      --shadow-hover: 0 12px 32px rgba(11, 59, 44, 0.10);
      --page-gap: clamp(4rem, 8vw, 7rem);
      --transition-base: 0.25s ease;
    }

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

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

    body {
      font-family: 'Noto Sans SC', sans-serif;
      font-size: 1rem;
      line-height: 1.85;
      color: var(--ink);
      background-color: var(--cream);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    h1,
    h2,
    h3,
    h4 {
      font-family: 'Noto Serif SC', serif;
      line-height: 1.3;
      font-weight: 600;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

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

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

    input,
    textarea,
    select {
      font-family: inherit;
      font-size: 1rem;
    }

    :focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
    }

    /* ===== Container ===== */
    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media (max-width: 768px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    /* ===== 站点头部 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      height: 64px;
      transition: background-color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
      border-bottom: 1px solid transparent;
      background-color: rgba(246, 244, 238, 0.72);
      backdrop-filter: blur(0px);
      -webkit-backdrop-filter: blur(0px);
    }

    .site-header.scrolled {
      background-color: rgba(246, 244, 238, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom-color: var(--linen);
      box-shadow: 0 4px 20px rgba(11, 59, 44, 0.06);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .logo {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--brand);
      display: inline-flex;
      align-items: center;
      letter-spacing: 0.02em;
    }

    .logo .dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--gold);
      margin-left: 2px;
    }

    .nav-links {
      gap: 32px;
      margin-left: 24px;
    }

    .nav-links a {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--warmgray);
      position: relative;
      padding: 6px 2px;
      line-height: 1;
      display: inline-flex;
      align-items: center;
      transition: color 0.2s;
    }

    .nav-links a:hover {
      color: var(--brand);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -3px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--gold);
      transition: width 0.3s ease;
      border-radius: 2px;
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }

    .nav-links a.active {
      color: var(--brand);
      font-weight: 700;
    }

    /* ===== 按钮 ===== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--brand);
      color: #fff;
      font-size: 1rem;
      font-weight: 500;
      padding: 12px 28px;
      height: 44px;
      border-radius: 10px;
      transition: background-color 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
      white-space: nowrap;
    }

    .btn-primary:hover {
      background-color: var(--gold);
      color: var(--brand-deep);
      box-shadow: 0 8px 24px rgba(194, 153, 75, 0.35);
    }

    .btn-primary:active {
      transform: scale(0.98);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: transparent;
      color: var(--brand);
      font-size: 1rem;
      font-weight: 500;
      padding: 12px 28px;
      height: 44px;
      border-radius: 10px;
      border: 1px solid var(--brand);
      transition: background-color 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
      white-space: nowrap;
    }

    .btn-secondary:hover {
      background-color: var(--brand);
      color: #fff;
      box-shadow: 0 8px 24px rgba(11, 59, 44, 0.18);
    }

    .btn-secondary:active {
      transform: scale(0.98);
    }

    .btn-sm {
      height: 40px;
      padding: 0 20px;
      font-size: 0.875rem;
    }

    .btn-lg {
      height: 52px;
      padding: 0 40px;
      font-size: 1.05rem;
    }

    /* ===== 汉堡菜单 ===== */
    .menu-btn {
      width: 44px;
      height: 44px;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      border-radius: 10px;
      transition: background-color 0.2s;
    }

    .menu-btn:hover {
      background-color: rgba(11, 59, 44, 0.06);
    }

    .menu-line {
      width: 22px;
      height: 2px;
      background-color: var(--brand);
      border-radius: 2px;
      transition: all 0.3s ease;
    }

    .menu-btn.open .menu-line:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .menu-btn.open .menu-line:nth-child(2) {
      opacity: 0;
    }

    .menu-btn.open .menu-line:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* 移动端导航面板 */
    .mobile-nav {
      position: fixed;
      top: 64px;
      left: 0;
      width: 100%;
      height: calc(100vh - 64px);
      background: rgba(246, 244, 238, 0.98);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      z-index: 999;
      display: flex;
      flex-direction: column;
      padding: 40px 32px 32px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-8px);
      transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    }

    .mobile-nav.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .mobile-nav a {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--brand);
      padding: 14px 0;
      border-bottom: 1px solid var(--linen);
      display: block;
    }

    .mobile-nav a.active {
      color: var(--gold-strong);
    }

    .mobile-nav .btn-primary {
      margin-top: 32px;
      width: 100%;
    }

    /* ===== Hero ===== */
    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      padding-top: 8rem;
      padding-bottom: 4rem;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.08;
      pointer-events: none;
    }

    .hero .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero .hero-visual {
      position: relative;
      z-index: 2;
    }

    .kicker {
      display: inline-flex;
      align-items: center;
      background-color: var(--sand);
      color: var(--brand);
      font-size: 0.75rem;
      font-weight: 500;
      letter-spacing: 0.08em;
      padding: 6px 16px;
      border-radius: 999px;
      text-transform: uppercase;
    }

    .kicker::before {
      content: '';
      display: inline-block;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--gold);
      margin-right: 8px;
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 3.5rem);
      line-height: 1.1;
      color: var(--brand);
      margin-top: 20px;
      font-weight: 700;
    }

    .hero .lead {
      font-size: 1.125rem;
      color: var(--warmgray);
      margin-top: 20px;
      max-width: 480px;
      line-height: 1.9;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 32px;
    }

    .hero-metrics {
      display: flex;
      flex-wrap: wrap;
      gap: 28px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--linen);
    }

    .hero-metrics .metric {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.875rem;
      color: var(--warmgray);
    }

    .hero-metrics .metric i {
      color: var(--gold);
      font-size: 1rem;
    }

    .hero-visual .hero-img {
      border-radius: 20px;
      box-shadow: 0 20px 60px rgba(11, 59, 44, 0.18);
      object-fit: cover;
      width: 100%;
      min-height: 380px;
      background-color: var(--sand);
    }

    .hero-visual .float-card {
      position: absolute;
      left: -24px;
      bottom: 48px;
      background: #fff;
      border-radius: 16px;
      padding: 20px 24px;
      box-shadow: 0 16px 40px rgba(11, 59, 44, 0.12);
      max-width: 220px;
    }

    .hero-visual .float-card .label {
      font-size: 0.75rem;
      color: var(--warmgray);
    }

    .hero-visual .float-card .value {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--brand);
      margin-top: 4px;
    }

    /* ===== 板块通用 ===== */
    .section-section {
      padding-top: var(--page-gap);
      padding-bottom: var(--page-gap);
    }

    .section-bg-white {
      background-color: #fff;
    }

    .section-bg-cream {
      background-color: var(--cream);
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 48px;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-head h2 {
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      color: var(--brand);
      margin-top: 12px;
    }

    .section-head p {
      color: var(--warmgray);
      margin-top: 16px;
      font-size: 1rem;
      line-height: 1.8;
    }

    .section-head .kicker {
      margin-bottom: 4px;
    }

    /* ===== 功能卡（2×2） ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #fff;
      border: 1px solid var(--linen);
      border-radius: var(--card-radius);
      padding: 32px;
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(194, 153, 75, 0.4);
    }

    .feature-card .feature-num {
      font-family: 'Noto Serif SC', serif;
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--linen);
      line-height: 1;
      position: absolute;
      top: 24px;
      right: 28px;
      transition: color 0.3s ease;
    }

    .feature-card:hover .feature-num {
      color: var(--gold);
    }

    .feature-card .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand);
      font-size: 1.4rem;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      color: var(--brand);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 0.9375rem;
      color: var(--warmgray);
      line-height: 1.8;
    }

    /* ===== 场景卡（竖排） ===== */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-card {
      background: #fff;
      border: 1px solid var(--linen);
      border-radius: var(--card-radius);
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .scene-card::after {
      content: '';
      position: absolute;
      bottom: -40px;
      right: -40px;
      width: 140px;
      height: 140px;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      opacity: 0.04;
      border-radius: 50%;
      pointer-events: none;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .scene-card .scene-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--brand);
      color: var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      margin-bottom: 24px;
    }

    .scene-card h3 {
      font-size: 1.25rem;
      color: var(--brand);
      margin-bottom: 12px;
    }

    .scene-card>p {
      font-size: 0.9375rem;
      color: var(--warmgray);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .scene-card ul {
      list-style: none;
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--linen);
    }

    .scene-card ul li {
      font-size: 0.875rem;
      color: var(--warmgray);
      padding: 5px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scene-card ul li i {
      color: var(--gold);
      font-size: 0.75rem;
    }

    /* 金色串联线 */
    .scene-grid-wrapper {
      position: relative;
    }

    .scene-grid-wrapper::before {
      content: '';
      position: absolute;
      top: 50%;
      left: calc(16.66% + 0px);
      right: calc(16.66% + 0px);
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--gold), transparent);
      opacity: 0.4;
      z-index: 0;
    }

    /* ===== 流程 ===== */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      counter-reset: step;
    }

    .process-card {
      background: #fff;
      border-radius: var(--card-radius);
      border: 1px solid var(--linen);
      padding: 28px 24px;
      position: relative;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .process-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .process-card .step-num {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--gold-strong);
      margin-bottom: 12px;
      display: block;
    }

    .process-card h3 {
      font-size: 1.1rem;
      color: var(--brand);
      margin-bottom: 10px;
    }

    .process-card p {
      font-size: 0.875rem;
      color: var(--warmgray);
      line-height: 1.75;
    }

    /* ===== 数据与案例 ===== */
    .data-band {
      background: var(--brand-deep);
      border-radius: 24px;
      padding: 48px 40px;
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .data-band::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.08;
      pointer-events: none;
    }

    .data-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      position: relative;
      z-index: 1;
    }

    .data-item .stat-value {
      font-family: 'Noto Serif SC', serif;
      font-size: 2.4rem;
      font-weight: 700;
      color: var(--gold);
      line-height: 1.1;
    }

    .data-item .stat-label {
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.7);
      margin-top: 8px;
    }

    .quote-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .quote-card {
      background: #fff;
      border: 1px solid var(--linen);
      border-radius: var(--card-radius);
      padding: 36px 32px;
      position: relative;
    }

    .quote-card::before {
      content: '\201C';
      font-family: 'Noto Serif SC', serif;
      font-size: 4rem;
      color: var(--gold);
      line-height: 1;
      position: absolute;
      top: 12px;
      left: 24px;
    }

    .quote-card blockquote {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.0625rem;
      line-height: 1.9;
      color: var(--ink);
      margin-top: 20px;
      font-style: normal;
    }

    .quote-card .quote-author {
      font-size: 0.875rem;
      color: var(--warmgray);
      margin-top: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .quote-card .quote-author::before {
      content: '';
      width: 2px;
      height: 18px;
      background: var(--gold);
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--linen);
      padding: 0;
    }

    .faq-item .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 24px 0;
      width: 100%;
      text-align: left;
      cursor: pointer;
      transition: background-color 0.2s;
    }

    .faq-item .faq-question:hover .faq-q {
      color: var(--brand);
    }

    .faq-item .faq-q {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--ink);
      line-height: 1.5;
      transition: color 0.2s;
    }

    .faq-item .faq-toggle {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand);
      font-size: 1rem;
      transition: transform 0.3s ease, background-color 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item.open .faq-toggle {
      transform: rotate(45deg);
      background: var(--gold);
      color: #fff;
    }

    .faq-item .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      padding-right: 40px;
    }

    .faq-item .faq-answer-inner {
      padding-bottom: 24px;
      font-size: 0.9375rem;
      color: var(--warmgray);
      line-height: 1.85;
      position: relative;
    }

    .faq-item.open .faq-answer {
      max-height: 500px;
    }

    .faq-item.open .faq-answer-inner::before {
      content: '';
      display: block;
      width: 40px;
      height: 2px;
      background: var(--gold);
      margin-bottom: 12px;
    }

    /* ===== CTA ===== */
    .cta-block {
      background: var(--brand-deep);
      border-radius: 24px;
      padding: 72px 48px;
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .cta-block::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.10;
      pointer-events: none;
    }

    .cta-block h2 {
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      color: #fff;
      position: relative;
      z-index: 1;
    }

    .cta-block p {
      font-size: 1.0625rem;
      color: rgba(255, 255, 255, 0.75);
      max-width: 560px;
      margin: 16px auto 0;
      position: relative;
      z-index: 1;
    }

    .cta-block .btn-primary {
      margin-top: 32px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      position: relative;
      z-index: 1;
    }

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

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--brand-deep);
      color: #fff;
      padding-top: 72px;
      padding-bottom: 28px;
    }

    .site-footer h3 {
      color: #fff;
      font-family: 'Noto Sans SC', sans-serif;
      font-weight: 600;
      font-size: 1rem;
      margin-bottom: 18px;
      letter-spacing: 0.04em;
    }

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

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

    .site-footer ul a {
      color: rgba(255, 255, 255, 0.55);
      font-size: 0.875rem;
      transition: color 0.2s;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      margin-top: 48px;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.35);
    }

    /* ===== 空态 ===== */
    .empty-state {
      border: 2px dashed var(--linen);
      border-radius: 16px;
      padding: 48px;
      text-align: center;
      color: var(--dim);
      font-size: 0.9375rem;
      background: #fff;
    }

    /* ===== 动画 ===== */
    .fade-up {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    .fade-up.in-view {
      opacity: 1;
      transform: translateY(0);
    }

    @keyframes hero-zoom-in {
      from {
        opacity: 0;
        transform: scale(1.05);
      }
      to {
        opacity: 1;
        transform: scale(1);
      }
    }

    .hero-visual .hero-img {
      animation: hero-zoom-in 0.8s ease-out both;
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        transform: none !important;
        opacity: 1 !important;
      }
      html {
        scroll-behavior: auto;
      }
    }

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

      .hero {
        padding-top: 7rem;
        min-height: auto;
      }

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

      .scene-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .scene-grid-wrapper::before {
        display: none;
      }

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

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

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

    @media (max-width: 768px) {
      .hero {
        padding-top: 6rem;
      }

      .hero .hero-content {
        padding-bottom: 32px;
      }

      .hero-visual .float-card {
        left: 12px;
        bottom: 20px;
        padding: 16px;
      }

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

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

      .cta-block {
        padding: 48px 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
    }

    @media (max-width: 520px) {
      .hero h1 {
        font-size: 2rem;
      }

      .hero .lead {
        font-size: 1rem;
      }

      .hero-cta {
        flex-direction: column;
        align-items: stretch;
      }

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

      .hero-metrics {
        gap: 16px;
      }

      .feature-card {
        padding: 24px;
      }

      .scene-card {
        padding: 24px;
      }

      .section-head h2 {
        font-size: 1.5rem;
      }
    }

/* roulang page: category3 */
:root {
  --brand: #0B3B2C;
  --brand-dark: #072B20;
  --brand-light: #14513D;
  --gold: #C2994B;
  --gold-strong: #B38635;
  --ivory: #F6F4EE;
  --ink: #1A1D1C;
  --gray-warm: #5B6461;
  --gray-faint: #A8A29E;
  --line-warm: #E4DED2;
  --tag-bg: #EFE9DD;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-img: 12px;
  --shadow-card: 0 2px 8px rgba(11, 59, 44, 0.04);
  --shadow-hover: 0 12px 32px rgba(11, 59, 44, 0.10);
  --gold-ring: 0 0 0 1px rgba(194, 153, 75, 0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
section { scroll-margin-top: 80px; }
section + section { padding-top: 0; }

/* 导航 */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 64px;
  background: rgba(246, 244, 238, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228, 222, 210, 0.6);
  transition: background 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  background: rgba(246, 244, 238, 0.98);
  border-bottom-color: rgba(228, 222, 210, 0.9);
}
.nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.logo {
  display: flex; align-items: center;
  font-family: 'Noto Serif SC', serif;
  font-size: 1.35rem; font-weight: 700; color: var(--brand);
  letter-spacing: 0.02em;
}
.logo .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); margin-left: 5px; }
.nav-links { display: flex; align-items: center; gap: 30px; margin-left: 48px; }
.nav-links a {
  position: relative; font-size: 14px; font-weight: 500; color: var(--gray-warm);
  padding: 8px 2px; transition: color 0.2s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--gold); transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--brand); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--brand); font-weight: 600; }
.nav-links a.active::before {
  content: ""; position: absolute; top: -2px; left: 50%; transform: translateX(-50%);
  width: 5px; height: 5px; border-radius: 50%; background: var(--gold);
}
.menu-btn {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; padding: 10px;
  background: transparent; border-radius: 8px;
}
.menu-line { display: block; width: 100%; height: 2px; background: var(--brand); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }
.menu-btn[aria-expanded="true"] .menu-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .menu-line:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] .menu-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端菜单 */
.mobile-menu {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(7, 43, 32, 0.98);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 28px;
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a { color: rgba(255, 255, 255, 0.92); font-family: 'Noto Serif SC', serif; font-size: 1.4rem; font-weight: 600; }
.mobile-menu a.active { color: var(--gold); }
.mobile-menu .btn-primary { margin-top: 20px; font-size: 1rem; }

/* 按钮 */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand); color: #fff;
  font-size: 0.925rem; font-weight: 600;
  height: 44px; padding: 0 28px; border-radius: var(--radius-btn);
  transition: all 0.25s ease; white-space: nowrap;
}
.btn-primary:hover { background: var(--gold); color: var(--brand-dark); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary.btn-sm { height: 38px; padding: 0 20px; font-size: 0.85rem; }
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--brand);
  font-size: 0.925rem; font-weight: 600;
  height: 44px; padding: 0 28px; border-radius: var(--radius-btn);
  border: 1px solid var(--brand);
  transition: all 0.25s ease; white-space: nowrap;
}
.btn-secondary:hover { background: var(--brand); color: #fff; }
.btn-secondary:active { transform: scale(0.98); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--gold-strong); font-size: 0.875rem; font-weight: 600;
  transition: color 0.2s ease;
}
.btn-ghost i { transition: transform 0.25s ease; }
.btn-ghost:hover { color: var(--brand); }
.btn-ghost:hover i { transform: translateX(4px); }

/* Hero */
.hero {
  position: relative;
  background: var(--brand-dark);
  padding: 8rem 0 5rem;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
  opacity: 0.18;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(7, 43, 32, 0.92) 40%, rgba(7, 43, 32, 0.55) 100%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-breadcrumb {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.8rem; color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1.6rem;
}
.hero-breadcrumb a { color: rgba(255, 255, 255, 0.75); transition: color 0.2s ease; }
.hero-breadcrumb a:hover { color: var(--gold); }
.hero-kicker {
  display: inline-block;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em;
  color: var(--gold); text-transform: uppercase;
  background: rgba(194, 153, 75, 0.14);
  border: 1px solid rgba(194, 153, 75, 0.35);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 1.4rem;
}
.hero h1 {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700; line-height: 1.15;
  color: #fff; margin-bottom: 1.2rem;
  letter-spacing: 0.02em;
}
.hero-sub {
  font-size: 1.08rem; line-height: 1.85;
  color: rgba(255, 255, 255, 0.82); max-width: 520px; margin-bottom: 2rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 2.6rem; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 28px; }
.hero-trust-item { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: rgba(255, 255, 255, 0.68); }
.hero-trust-item i { color: var(--gold); font-size: 0.95rem; }
.hero-card-wrap { position: relative; }
.hero-card {
  position: absolute; right: 24px; bottom: -60px;
  width: 280px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 24px 28px;
  backdrop-filter: blur(8px);
  z-index: 3;
}
.hero-card-label { font-size: 0.75rem; color: var(--gray-warm); letter-spacing: 0.06em; margin-bottom: 4px; }
.hero-card-value { font-family: 'Noto Serif SC', serif; font-size: 1.7rem; font-weight: 700; color: var(--brand); }
.hero-card-desc { font-size: 0.8rem; color: var(--gray-faint); margin-top: 6px; line-height: 1.6; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-image-wrap {
  position: relative; border-radius: 18px; overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}
.hero-image-wrap img { width: 100%; height: 420px; object-fit: cover; }
.hero-image-wrap::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7, 43, 32, 0) 55%, rgba(7, 43, 32, 0.35) 100%);
}

/* 通用区块 */
.section-pad { padding-top: clamp(4rem, 8vw, 6rem); padding-bottom: clamp(4rem, 8vw, 6rem); }
.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: inline-block; font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.12em; color: var(--gold-strong);
  background: var(--tag-bg); border-radius: 999px;
  padding: 4px 14px; margin-bottom: 1rem;
}
.section-head h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700; line-height: 1.3; color: var(--brand);
  margin-bottom: 0.9rem;
}
.section-head .section-desc { font-size: 0.98rem; color: var(--gray-warm); line-height: 1.8; }
.section-head.center .section-desc { margin-left: auto; margin-right: auto; }

/* 编号能力卡 */
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.cap-card {
  background: #fff; border: 1px solid var(--line-warm); border-radius: var(--radius-card);
  padding: 30px 32px; position: relative; overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.cap-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(194, 153, 75, 0.4);
}
.cap-num {
  font-family: 'Noto Serif SC', serif; font-size: 0.85rem; font-weight: 700;
  color: var(--gray-faint); letter-spacing: 0.08em;
  transition: color 0.3s ease;
}
.cap-card:hover .cap-num { color: var(--gold-strong); }
.cap-icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(11, 59, 44, 0.07); color: var(--brand); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin: 18px 0 14px; }
.cap-card h3 { font-family: 'Noto Serif SC', serif; font-size: 1.2rem; font-weight: 600; color: var(--brand); margin-bottom: 8px; }
.cap-card p { font-size: 0.9rem; color: var(--gray-warm); line-height: 1.75; }
.cap-link { display: inline-flex; align-items: center; gap: 5px; margin-top: 16px; font-size: 0.82rem; font-weight: 600; color: var(--gold-strong); transition: color 0.2s ease; }
.cap-link:hover { color: var(--brand); }

/* 流程 */
.process-section { background: #fff; border-top: 1px solid var(--line-warm); border-bottom: 1px solid var(--line-warm); }
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
.process-grid::before {
  content: ""; position: absolute; top: 28px; left: 8%; right: 8%; height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--line-warm), var(--gold));
}
.process-step { position: relative; text-align: center; padding: 0 14px; }
.process-dot {
  width: 56px; height: 56px; margin: 0 auto 16px;
  background: var(--brand); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Noto Serif SC', serif; font-size: 1.15rem; font-weight: 700;
  border: 4px solid #fff; box-shadow: 0 0 0 2px rgba(11, 59, 44, 0.15);
  position: relative; z-index: 2;
}
.process-step h3 { font-family: 'Noto Serif SC', serif; font-size: 1rem; font-weight: 600; color: var(--brand); margin-bottom: 6px; }
.process-step p { font-size: 0.82rem; color: var(--gray-warm); line-height: 1.6; }

/* 场景卡 */
.scene-section { background: url('/assets/images/backpic/back-3.webp') center/cover fixed no-repeat; position: relative; }
.scene-section::before { content: ""; position: absolute; inset: 0; background: rgba(246, 244, 238, 0.94); }
.scene-section .container { position: relative; z-index: 2; }
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene-card {
  background: #fff; border-radius: var(--radius-card); overflow: hidden;
  border: 1px solid var(--line-warm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex; flex-direction: column;
}
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.scene-card-img { height: 160px; overflow: hidden; position: relative; }
.scene-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.scene-card:hover .scene-card-img img { transform: scale(1.05); }
.scene-card-body { padding: 26px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.scene-card-body h3 { font-family: 'Noto Serif SC', serif; font-size: 1.15rem; font-weight: 600; color: var(--brand); margin-bottom: 8px; }
.scene-card-body .scene-desc { font-size: 0.88rem; color: var(--gray-warm); line-height: 1.7; margin-bottom: 14px; }
.scene-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.scene-points span {
  font-size: 0.75rem; color: var(--brand-light); background: var(--tag-bg);
  border-radius: 999px; padding: 4px 12px; font-weight: 500;
}

/* 交付成果 */
.deliver-section { background: #fff; }
.deliver-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
.deliver-img-wrap { position: relative; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-hover); }
.deliver-img-wrap img { width: 100%; height: 420px; object-fit: cover; }
.deliver-img-wrap::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(7, 43, 32, 0.35)); }
.deliver-list { display: flex; flex-direction: column; gap: 22px; }
.deliver-item { display: flex; gap: 16px; align-items: flex-start; }
.deliver-check {
  width: 28px; height: 28px; flex-shrink: 0; border-radius: 8px;
  background: rgba(11, 59, 44, 0.08); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 0.8rem;
  margin-top: 3px;
}
.deliver-item h3 { font-family: 'Noto Serif SC', serif; font-size: 1.05rem; font-weight: 600; color: var(--brand); margin-bottom: 4px; }
.deliver-item p { font-size: 0.88rem; color: var(--gray-warm); line-height: 1.7; }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--line-warm); position: relative; }
.faq-item:first-child { border-top: 1px solid var(--line-warm); }
.faq-item.open::before {
  content: ""; position: absolute; top: 0; left: 0; width: 40px; height: 2px;
  background: var(--gold);
}
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 22px 0; background: transparent; text-align: left;
  font-family: 'Noto Serif SC', serif; font-size: 1.05rem; font-weight: 600; color: var(--brand);
  transition: color 0.2s ease;
}
.faq-question:hover { color: var(--gold-strong); }
.faq-icon {
  width: 30px; height: 30px; flex-shrink: 0; border-radius: 50%;
  border: 1px solid var(--line-warm); background: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.faq-icon i { font-size: 0.8rem; color: var(--brand); transition: transform 0.3s ease; }
.faq-item.open .faq-icon { background: var(--brand); border-color: var(--brand); transform: rotate(180deg); }
.faq-item.open .faq-icon i { color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer-inner { padding-bottom: 22px; font-size: 0.9rem; color: var(--gray-warm); line-height: 1.8; padding-right: 40px; }

/* CTA */
.cta-section {
  position: relative; background: var(--brand-dark); overflow: hidden;
  padding: clamp(4rem, 8vw, 6rem) 0;
}
.cta-section::before {
  content: ""; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover; background-position: center;
  opacity: 0.1;
}
.cta-inner { position: relative; z-index: 2; text-align: center; }
.cta-inner h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  color: #fff; font-weight: 700; line-height: 1.3; margin-bottom: 14px;
}
.cta-inner p { color: rgba(255, 255, 255, 0.75); font-size: 1rem; max-width: 560px; margin: 0 auto 32px; }
.cta-inner .btn-primary { background: var(--gold); color: var(--brand-dark); }
.cta-inner .btn-primary:hover { background: #fff; color: var(--brand); }

/* 页脚 */
footer { font-size: 0.9rem; }
footer a { transition: color 0.2s ease; }
.footer-divider { border-color: rgba(255, 255, 255, 0.12); }
.footer-bottom { font-size: 0.78rem; color: rgba(255, 255, 255, 0.4); }

/* 滚动入场 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* 焦点与可访问性 */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { position: relative; right: auto; bottom: auto; margin-top: -50px; width: 100%; }
  .process-grid { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
  .process-grid::before { display: none; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .deliver-grid { grid-template-columns: 1fr; gap: 36px; }
  .deliver-img-wrap img { height: 320px; }
}
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .nav-links { display: none; }
  .menu-btn { display: inline-flex; }
  .cap-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; row-gap: 28px; }
  .process-grid::before { display: none; }
  .process-step { max-width: 380px; margin: 0 auto; text-align: left; display: flex; gap: 18px; align-items: flex-start; }
  .process-dot { margin: 6px 0 0; flex-shrink: 0; width: 48px; height: 48px; font-size: 1rem; }
  .hero-card { margin-top: -20px; }
  .scene-grid { grid-template-columns: 1fr; }
  .deliver-img-wrap img { height: 260px; }
}
@media (max-width: 520px) {
  .hero { padding-top: 7rem; }
  .hero-cta .btn-primary, .hero-cta .btn-secondary { width: 100%; }
  .hero-trust { flex-direction: column; gap: 12px; }
  .section-head h2 { font-size: 1.5rem; }
  .cap-card { padding: 24px 22px; }
  .scene-card-body { padding: 22px; }
  .deliver-item { flex-direction: column; gap: 8px; }
  .cta-inner .btn-primary { width: 100%; max-width: 320px; }
}