/* roulang page: index */
:root {
  --color-primary: #B4232D;
  --color-primary-dark: #8E1820;
  --color-primary-soft: rgba(180,35,45,0.08);
  --color-accent: #C9A66B;
  --color-dark: #16181D;
  --color-dark-soft: #23262E;
  --color-bg: #F6F4F0;
  --color-card: #FFFFFF;
  --color-text: #2B2F36;
  --color-text-secondary: #6B7280;
  --color-border: #E8E4DF;
  --shadow-sm: 0 2px 12px rgba(22,24,29,0.06);
  --shadow-md: 0 10px 24px rgba(22,24,29,0.10);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 999px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }

/* 导航 */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(246,244,240,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 16px rgba(22,24,29,0.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 24px;
}
@media (max-width: 1024px) { .header-inner { height: 64px; } }

.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 17px; font-weight: 800; color: var(--color-text);
  white-space: nowrap; flex-shrink: 0;
  letter-spacing: -0.3px;
}
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}
.site-header.scrolled .logo { color: var(--color-text); }
.site-header:not(.scrolled) .logo { color: #fff; }
@media (max-width: 480px) { .logo { font-size: 14px; } .logo-icon { width: 30px; height: 30px; } }

.main-nav ul { display: flex; list-style: none; gap: 4px; }
.main-nav a {
  display: inline-block; padding: 10px 16px;
  font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,0.85); border-radius: var(--radius-lg);
  transition: var(--transition);
}
.site-header.scrolled .main-nav a { color: var(--color-text); }
.main-nav a:hover { color: #fff; background: rgba(255,255,255,0.12); }
.site-header.scrolled .main-nav a:hover { color: var(--color-primary); background: var(--color-primary-soft); }
.main-nav a.active { color: #fff; background: rgba(255,255,255,0.18); }
.site-header.scrolled .main-nav a.active { color: var(--color-primary); background: var(--color-primary-soft); }
@media (max-width: 1024px) {
  .main-nav {
    position: fixed; top: 64px; right: -320px; width: 300px; height: calc(100vh - 64px);
    background: var(--color-dark); padding: 24px 20px;
    transition: right 0.3s ease; overflow-y: auto; z-index: 999;
    box-shadow: -8px 0 32px rgba(0,0,0,0.2);
  }
  .main-nav.open { right: 0; }
  .main-nav::before { content: ''; display: block; width: 40px; height: 3px; background: var(--color-accent); margin-bottom: 20px; }
  .main-nav ul { flex-direction: column; gap: 8px; }
  .main-nav a, .site-header.scrolled .main-nav a {
    display: block; padding: 14px 16px; color: rgba(255,255,255,0.9);
    font-size: 15px; border-radius: var(--radius-sm);
  }
  .main-nav a:hover, .site-header.scrolled .main-nav a:hover,
  .main-nav a.active, .site-header.scrolled .main-nav a.active {
    color: #fff; background: rgba(255,255,255,0.12);
  }
}

.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.9); font-size: 16px;
  transition: var(--transition);
}
.site-header.scrolled .search-toggle { color: var(--color-text); }
.search-toggle:hover { background: rgba(255,255,255,0.14); color: #fff; }
.site-header.scrolled .search-toggle:hover { background: var(--color-primary-soft); color: var(--color-primary); }

.menu-toggle {
  display: none; width: 44px; height: 44px; border-radius: 8px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.menu-toggle span { display: block; width: 20px; height: 2px; background: rgba(255,255,255,0.9); border-radius: 2px; transition: var(--transition); }
.site-header.scrolled .menu-toggle span { background: var(--color-text); }
.menu-toggle.open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
@media (max-width: 1024px) { .menu-toggle { display: flex; } }

/* 搜索面板 */
.search-panel {
  position: fixed; top: 68px; left: 0; right: 0; z-index: 998;
  background: var(--color-dark); padding: 20px 0;
  transform: translateY(-120%); transition: transform 0.35s ease;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.search-panel.open { transform: translateY(0); }
.search-panel .container { display: flex; gap: 12px; }
.search-panel input {
  flex: 1; height: 44px; border-radius: var(--radius-sm);
  border: 1px solid transparent; padding: 0 16px;
  background: rgba(255,255,255,0.1); color: #fff; font-size: 15px;
  outline: none; transition: var(--transition);
}
.search-panel input::placeholder { color: rgba(255,255,255,0.5); }
.search-panel input:focus { border-color: var(--color-primary); background: rgba(255,255,255,0.16); }
.search-panel button {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: var(--color-primary); color: #fff; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.search-panel button:hover { background: var(--color-primary-dark); }
.search-panel .close-search {
  background: transparent; border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7); width: 44px; height: 44px;
}

/* 通用按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 28px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; letter-spacing: 0.2px;
  transition: var(--transition); position: relative;
}
.btn:focus-visible {
  outline: 2px solid rgba(180,35,45,0.4); outline-offset: 2px;
}
.btn-primary { background: var(--color-primary); color: #fff !important; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(180,35,45,0.25); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent; color: var(--color-primary) !important;
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-soft); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); background: rgba(180,35,45,0.15); }
.btn-white { background: #fff; color: var(--color-text) !important; }
.btn-white:hover { background: #f3f3f3; transform: translateY(-2px); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn-lg { height: 52px; padding: 0 36px; font-size: 16px; border-radius: var(--radius-sm); }

/* Hero */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: stretch;
  padding-top: 68px;
}
.hero-left {
  width: 50%; background: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  padding: 80px 48px 120px;
  position: relative;
}
.hero-right {
  width: 50%; background: var(--color-dark);
  position: relative; overflow: hidden;
  min-height: 600px;
}
.hero-right .hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0.65;
}
.hero-right .hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to right, var(--color-dark), transparent 40%);
}
.hero-slant {
  position: absolute; left: calc(50% - 4px); top: 0; bottom: 0; width: 8px;
  background: var(--color-primary); transform: skewX(-8deg);
  z-index: 5;
}
.hero-content { max-width: 500px; width: 100%; position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--color-primary-soft); color: var(--color-primary);
  font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: var(--radius-lg);
  margin-bottom: 20px; letter-spacing: 0.3px;
}
.hero-eyebrow i { font-size: 12px; }
.hero h1 {
  font-size: 40px; font-weight: 800; line-height: 1.25; letter-spacing: -0.5px;
  color: var(--color-text); margin-bottom: 20px;
}
.hero-sub {
  font-size: 16px; line-height: 1.8; color: var(--color-text-secondary);
  margin-bottom: 32px; max-width: 420px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-trust {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border); padding-top: 16px;
}
.hero-trust .trust-item { display: flex; align-items: center; gap: 6px; }
.hero-trust .trust-item i { color: var(--color-primary); font-size: 13px; }

.hero-float-card {
  position: absolute; right: 48px; bottom: 80px; z-index: 6;
  background: #fff; border-radius: 10px; padding: 16px 20px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.22);
  display: flex; align-items: center; gap: 12px;
  animation: floatUp 3s ease-in-out infinite;
}
@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-float-card .fc-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(46,160,67,0.12); color: #2EA043;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.hero-float-card .fc-text { font-size: 13px; color: var(--color-text); line-height: 1.4; }
.hero-float-card .fc-text strong { display: block; font-size: 14px; }

.hero-fade {
  position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
  background: linear-gradient(to bottom, transparent, var(--color-bg));
  z-index: 4;
}

@media (max-width: 1024px) {
  .hero { flex-direction: column; padding-top: 64px; }
  .hero-left { width: 100%; padding: 60px 24px 60px; }
  .hero-right { width: 100%; min-height: 380px; }
  .hero-slant { left: 0; right: 0; top: auto; bottom: 0; width: 100%; height: 6px; transform: skewX(0); }
  .hero h1 { font-size: 32px; }
  .hero-float-card { right: 24px; bottom: 40px; }
}

@media (max-width: 768px) {
  .hero-left { padding: 48px 16px 56px; }
  .hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-float-card { left: 16px; right: 16px; bottom: 20px; }
}

/* 区块通用 */
.section { padding: 96px 0; position: relative; }
.section-title-wrap { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-title-wrap .section-kicker {
  font-size: 13px; font-weight: 600; color: var(--color-primary);
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px;
  display: block;
}
.section-title { font-size: 30px; font-weight: 700; line-height: 1.35; color: var(--color-text); letter-spacing: -0.3px; }
.section-sub { font-size: 15px; color: var(--color-text-secondary); margin-top: 16px; line-height: 1.7; }

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 22px; }
  .section-title-wrap { margin-bottom: 40px; }
}

/* 能力区 */
.section-capabilities { background: var(--color-bg); }
.stats-row {
  display: flex; justify-content: center; gap: 48px; flex-wrap: wrap;
  margin-bottom: 72px; padding: 0 24px;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 42px; font-weight: 800; color: var(--color-primary);
  font-feature-settings: "tnum"; line-height: 1.2; letter-spacing: -1px;
}
.stat-label { font-size: 14px; color: var(--color-text-secondary); margin-top: 8px; }
@media (max-width: 768px) {
  .stats-row { gap: 32px; margin-bottom: 48px; }
  .stat-num { font-size: 32px; }
}

.capability-cards {
  display: flex; gap: 24px; align-items: stretch;
}
.capability-card {
  flex: 1; background: var(--color-card); border-radius: var(--radius-md);
  padding: 36px 28px; box-shadow: var(--shadow-sm);
  border-top: 3px solid transparent;
  transition: var(--transition); position: relative;
}
.capability-card:first-child { border-top-color: var(--color-primary); transform: translateY(-8px); }
.capability-card:nth-child(2) { border-top-color: var(--color-accent); margin-top: 24px; }
.capability-card:nth-child(3) { border-top-color: var(--color-dark); }
.capability-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.capability-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--color-primary-soft); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 20px;
}
.capability-card:nth-child(2) .capability-icon { background: rgba(201,166,107,0.15); color: var(--color-accent); }
.capability-card:nth-child(3) .capability-icon { background: rgba(22,24,29,0.08); color: var(--color-dark); }
.capability-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; color: var(--color-text); }
.capability-card p { font-size: 14px; line-height: 1.7; color: var(--color-text-secondary); }
.capability-card .more-link {
  display: inline-block; margin-top: 16px; font-size: 13px; color: var(--color-primary);
  font-weight: 600; transition: var(--transition);
}
.capability-card .more-link:hover { text-decoration: underline; }

@media (max-width: 1024px) {
  .capability-cards { flex-direction: column; gap: 20px; }
  .capability-card:first-child, .capability-card:nth-child(2), .capability-card:nth-child(3) { margin-top: 0; transform: none; }
}

/* 轮播区 */
.section-carousel { background: var(--color-dark); overflow: hidden; }
.section-carousel .section-title { color: #fff; }
.section-carousel .section-sub { color: rgba(255,255,255,0.6); }
.carousel-container { position: relative; max-width: 1200px; margin: 0 auto; }
.carousel-viewport { overflow: hidden; padding: 10px 0; }
.carousel-track { display: flex; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.carousel-slide { flex: 0 0 33.333%; padding: 0 12px; }
.carousel-slide .screenshot-frame {
  background: #fff; border-radius: 12px; padding: 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
  aspect-ratio: 16/10; overflow: hidden; position: relative;
}
.screenshot-frame img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
.carousel-slide .screenshot-caption {
  color: rgba(255,255,255,0.65); font-size: 14px; text-align: center;
  margin-top: 16px; line-height: 1.5;
}
.carousel-arrow {
  position: absolute; top: 35%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.12); color: #fff; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 5; border: 1px solid rgba(255,255,255,0.12);
}
.carousel-arrow:hover { background: var(--color-primary); border-color: var(--color-primary); }
.carousel-arrow:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.carousel-arrow.prev { left: -20px; }
.carousel-arrow.next { right: -20px; }
.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.carousel-dots button {
  width: 8px; height: 8px; border-radius: var(--radius-lg); background: rgba(255,255,255,0.25);
  transition: var(--transition); padding: 0;
}
.carousel-dots button.active { background: var(--color-primary); width: 24px; }

@media (max-width: 1024px) {
  .carousel-slide { flex: 0 0 100%; }
  .carousel-arrow.prev { left: 8px; }
  .carousel-arrow.next { right: 8px; }
}
@media (max-width: 768px) {
  .carousel-slide { flex: 0 0 100%; }
  .carousel-arrow { width: 38px; height: 38px; top: 30%; }
}

/* 系统要求 */
.section-requirements { background: #fff; }
.requirement-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 32px;
}
.requirement-item {
  background: var(--color-bg); border-radius: var(--radius-md);
  padding: 28px 24px; border: 1px solid var(--color-border);
  position: relative; transition: var(--transition);
}
.requirement-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.requirement-item .req-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--color-primary-soft); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 17px;
  margin-bottom: 14px;
}
.requirement-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
.requirement-item p { font-size: 13px; color: var(--color-text-secondary); line-height: 1.6; }
.requirement-item .req-badge {
  position: absolute; top: 16px; right: 16px;
  background: rgba(46,160,67,0.1); color: #1a7f37; font-size: 11px;
  font-weight: 600; padding: 3px 10px; border-radius: var(--radius-lg);
}
@media (max-width: 1024px) { .requirement-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .requirement-grid { grid-template-columns: 1fr; } }

/* 评价墙 */
.section-testimonials { background: var(--color-bg); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 28px 24px;
  transition: var(--transition); position: relative;
}
.testimonial-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.testimonial-card .rating { color: var(--color-accent); font-size: 14px; letter-spacing: 2px; margin-bottom: 14px; }
.testimonial-card blockquote {
  font-size: 14px; line-height: 1.75; color: var(--color-text);
  margin-bottom: 20px; padding-left: 0; border-left: none;
  quotes: "\201C" "\201D";
}
.testimonial-card blockquote::before { content: open-quote; color: var(--color-primary); font-size: 28px; font-weight: 800; line-height: 0; vertical-align: -8px; margin-right: 2px; }
.testimonial-user { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--color-border); padding-top: 16px; }
.testimonial-user .avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.testimonial-user .user-info { line-height: 1.3; }
.testimonial-user .user-name { font-size: 14px; font-weight: 600; color: var(--color-text); }
.testimonial-user .user-source { font-size: 12px; color: var(--color-text-secondary); }
.testimonial-grid .card-cta-link { text-align: right; margin-top: 24px; }

@media (max-width: 1024px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .testimonial-grid { grid-template-columns: 1fr; } }

/* 下载区 */
.section-download {
  background: linear-gradient(135deg, #B4232D, #8E1820);
  padding: 80px 0;
}
.section-download .section-kicker { color: rgba(255,255,255,0.8); }
.section-download .section-title { color: #fff; }
.section-download .section-sub { color: rgba(255,255,255,0.75); }
.download-buttons {
  display: flex; justify-content: center; gap: 16px; flex-wrap: wrap;
  margin-top: 40px;
}
.download-btn {
  width: 180px; height: 64px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; gap: 12px;
  transition: var(--transition); background: var(--color-dark); color: #fff;
  padding: 0 20px;
}
.download-btn:hover { transform: translateY(-3px); background: #1f2229; box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.download-btn .dl-icon { font-size: 22px; flex-shrink: 0; }
.download-btn .dl-text { text-align: left; line-height: 1.2; }
.download-btn .dl-text strong { display: block; font-size: 15px; font-weight: 600; }
.download-btn .dl-text span { font-size: 12px; color: rgba(255,255,255,0.6); }
.download-btn.btn-web { background: #fff; color: var(--color-text); }
.download-btn.btn-web:hover { background: #f0f0f0; }
.download-btn.btn-web .dl-text span { color: var(--color-text-secondary); }
.section-download .safe-note {
  text-align: center; color: rgba(255,255,255,0.6);
  font-size: 12px; margin-top: 24px; display: flex; align-items: center; justify-content: center; gap: 6px;
}
.section-download .safe-note i { color: var(--color-accent); }

@media (max-width: 768px) {
  .download-buttons { flex-direction: column; align-items: center; }
  .download-btn { width: 100%; max-width: 280px; }
}

/* 资讯区 */
.section-news { background: var(--color-bg); }
.news-section-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 40px;
}
.news-section-head h2 { font-size: 28px; font-weight: 700; margin: 0; }
.news-section-head .view-all {
  font-size: 14px; color: var(--color-primary); font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.news-section-head .view-all:hover { text-decoration: underline; }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--color-card); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition); position: relative;
}
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.news-card .news-img {
  width: 100%; aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, #e8e4df, #f6f4f0);
}
.news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .news-img img { transform: scale(1.03); }
.news-card .news-body { padding: 20px; }
.news-card .badge {
  display: inline-block; background: var(--color-primary-soft); color: var(--color-primary);
  font-size: 12px; font-weight: 500; padding: 4px 12px; border-radius: var(--radius-lg);
  margin-bottom: 12px;
}
.news-card .news-title {
  font-size: 16px; font-weight: 600; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; color: var(--color-text); margin-bottom: 8px;
}
.news-card .news-title:hover { color: var(--color-primary); }
.news-card .news-excerpt {
  font-size: 13px; color: var(--color-text-secondary); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; margin-bottom: 16px;
}
.news-card .news-meta {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--color-border); padding-top: 14px;
}
.news-card .news-date { font-size: 12px; color: var(--color-text-secondary); }
.news-card .read-more { font-size: 13px; color: var(--color-primary); font-weight: 600; }
.news-card .read-more:hover { text-decoration: underline; }

.news-empty {
  grid-column: 1 / -1; text-align: center; padding: 60px 20px;
  background: var(--color-card); border-radius: var(--radius-md);
  border: 1px dashed var(--color-border);
}
.news-empty i { font-size: 40px; color: var(--color-text-secondary); opacity: 0.4; margin-bottom: 16px; }
.news-empty p { color: var(--color-text-secondary); font-size: 15px; }

@media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; }
  .news-section-head { flex-direction: column; gap: 12px; text-align: center; }
}

/* FAQ */
.section-faq { background: #fff; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s ease;
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-item.open { background: rgba(246,244,240,0.5); }
.faq-question {
  width: 100%; height: 56px; display: flex; align-items: center; justify-content: space-between;
  font-size: 16px; font-weight: 600; color: var(--color-text);
  padding: 0 16px; text-align: left;
  transition: color 0.2s ease;
}
.faq-question:hover { color: var(--color-primary); }
.faq-question .faq-arrow {
  width: 16px; height: 16px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-secondary); transition: transform 0.25s ease;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--color-primary); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-answer-inner { padding: 0 16px 20px; font-size: 14px; line-height: 1.75; color: var(--color-text-secondary); }
.faq-answer-inner p { margin-bottom: 8px; }
.faq-answer-inner p:last-child { margin-bottom: 0; }

/* 最终CTA */
.section-final-cta {
  background: var(--color-dark); padding: 80px 0;
  border-top: 3px solid var(--color-accent);
  text-align: center;
}
.final-cta-text { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 24px; letter-spacing: 0.5px; }
.final-cta-btn { margin-bottom: 16px; }
.final-cta-note { font-size: 12px; color: rgba(255,255,255,0.45); }

/* 页脚 */
.site-footer { background: var(--color-dark); color: #D1D5DB; border-top: 3px solid var(--color-accent); }
.footer-top { padding: 72px 0 48px; display: grid; grid-template-columns: 4fr 2fr 2fr 3fr; gap: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 18px; }
.footer-brand .footer-desc { font-size: 13px; color: #9CA3AF; line-height: 1.7; margin-bottom: 20px; max-width: 260px; }
.footer-social { display: flex; gap: 8px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,0.06); color: #D1D5DB;
  display: flex; align-items: center; justify-content: center; font-size: 14px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: #D1D5DB; transition: var(--transition); }
.footer-col ul a:hover { color: var(--color-primary); }
.footer-contact .contact-item { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 14px; color: #D1D5DB; }
.footer-contact .contact-item i { width: 16px; text-align: center; color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0; text-align: center; font-size: 13px; color: #6B7280;
}
.footer-bottom .copyright { display: inline-block; }
.footer-bottom .whatsapp { display: none; }

@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding-top: 48px; }
}

/* ====== 深浅色区块通用 ====== */
.dark-section .section-title { color: #fff; }
.dark-section .section-sub { color: rgba(255,255,255,0.6); }
.dark-section .section-kicker { color: var(--color-accent); }

/* 通用焦点样式 */
a:focus-visible, button:focus-visible {
  outline: 2px solid rgba(180,35,45,0.5); outline-offset: 2px;
}

/* ====== 响应式：520px 以下 ====== */
@media (max-width: 520px) {
  body { font-size: 15px; }
  .btn { width: 100%; }
  .btn-outline, .btn-white { width: auto; }
  .hero-actions .btn-outline { width: 100%; }
  .carousel-arrow { display: none; }
  .logo { font-size: 13px; }
  .header-actions .btn { display: none; }
  .download-btn { height: 60px; }
  .footer-bottom { padding: 20px 12px; font-size: 12px; }
}

/* roulang page: article */
:root {
    --color-primary: #B4232D;
    --color-primary-dark: #8E1820;
    --color-primary-soft: rgba(180, 35, 45, 0.08);
    --color-accent: #C9A66B;
    --color-dark: #16181D;
    --color-dark-soft: #23262E;
    --color-bg: #F6F4F0;
    --color-card: #FFFFFF;
    --color-text: #2B2F36;
    --color-text-secondary: #6B7280;
    --color-border: #E8E4DF;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-card: 0 2px 12px rgba(22, 24, 29, 0.06);
    --shadow-hover: 0 10px 24px rgba(22, 24, 29, 0.10);
    --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, Arial, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; height: auto; }
  a { text-decoration: none; color: inherit; }
  ul, ol { list-style: none; }
  button { font-family: inherit; cursor: pointer; }
  input { font-family: inherit; }

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

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(246, 244, 240, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
    height: 64px;
    transition: height .3s ease, box-shadow .3s ease;
  }
  .site-header.scrolled {
    height: 56px;
    box-shadow: 0 4px 20px rgba(22, 24, 29, 0.06);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 20px;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 800;
    color: var(--color-text);
    white-space: nowrap;
    letter-spacing: -0.3px;
    flex-shrink: 0;
  }
  .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
  }
  .main-nav { display: block; }
  .main-nav ul { display: flex; gap: 2px; }
  .main-nav a {
    display: block;
    padding: 8px 14px;
    color: var(--color-text-secondary);
    font-size: 15px;
    font-weight: 500;
    border-radius: 999px;
    transition: color .25s ease, background .25s ease;
  }
  .main-nav a:hover { color: var(--color-primary); background: var(--color-primary-soft); }
  .main-nav a.active { color: var(--color-primary); background: var(--color-primary-soft); font-weight: 600; }
  .header-actions { display: flex; align-items: center; gap: 10px; }
  .search-wrap { position: relative; }
  .search-toggle, .nav-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color .25s ease, color .25s ease;
  }
  .search-toggle:hover, .nav-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
  .search-toggle:focus-visible, .nav-toggle:focus-visible { outline: 2px solid rgba(180, 35, 45, 0.4); outline-offset: 2px; }
  .search-box {
    position: absolute;
    top: 50%;
    right: 44px;
    transform: translateY(-50%) scaleX(0);
    transform-origin: right;
    opacity: 0;
    transition: all .3s ease;
    pointer-events: none;
  }
  .search-box.open { transform: translateY(-50%) scaleX(1); opacity: 1; pointer-events: auto; }
  .search-box input {
    width: 240px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0 14px;
    font-size: 14px;
    background: #fff;
    outline: none;
    transition: border-color .25s ease, box-shadow .25s ease;
  }
  .search-box input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
  .nav-toggle { display: none; }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    padding: 10px 22px;
    border: 1.5px solid transparent;
    transition: all .25s ease;
  }
  .btn-primary { background: var(--color-primary); color: #fff; white-space: nowrap; }
  .btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(180, 35, 45, 0.3); }
  .btn-primary:active { transform: translateY(0); box-shadow: none; }
  .btn-primary:focus-visible { outline: 2px solid rgba(180, 35, 45, 0.4); outline-offset: 2px; }
  .btn-sm { padding: 8px 16px; font-size: 14px; }
  .btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 10px; }

  /* ===== 面包屑 ===== */
  .breadcrumb {
    padding: 28px 0 0;
    font-size: 13px;
    color: var(--color-text-secondary);
  }
  .breadcrumb a { color: var(--color-text-secondary); transition: color .2s; }
  .breadcrumb a:hover { color: var(--color-primary); }
  .breadcrumb .sep { margin: 0 8px; color: #c0c4cc; }
  .breadcrumb .current { color: var(--color-text); font-weight: 500; }

  /* ===== 文章主体 ===== */
  .article-shell { padding: 6px 0 80px; }
  .article-layout { max-width: 860px; margin: 0 auto; }
  .article-header { margin: 24px 0 32px; }
  .article-header h1 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.5px;
    color: var(--color-text);
    margin-bottom: 16px;
    word-break: break-word;
  }
  .article-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
  .meta-item {
    font-size: 13px;
    color: var(--color-text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .category-badge {
    display: inline-block;
    padding: 4px 14px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
  }

  /* ===== 正文 ===== */
  .article-content {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 44px 48px;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(232, 228, 223, 0.5);
  }
  .article-content p {
    font-size: 16px;
    line-height: 1.9;
    margin: 0 0 24px;
    color: var(--color-text);
  }
  .article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 48px 0 16px;
    padding-top: 8px;
    color: var(--color-text);
  }
  .article-content h2:first-child { margin-top: 0; }
  .article-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 12px;
    color: var(--color-text);
  }
  .article-content h4 {
    font-size: 17px;
    font-weight: 600;
    margin: 24px 0 10px;
    color: var(--color-text);
  }
  .article-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
  .article-content a:hover { color: var(--color-primary-dark); }
  .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
    margin: 24px 0;
    box-shadow: var(--shadow-card);
  }
  .article-content blockquote {
    background: var(--color-bg);
    border-left: 4px solid var(--color-primary);
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
    color: var(--color-text-secondary);
  }
  .article-content blockquote p { margin-bottom: 8px; }
  .article-content blockquote p:last-child { margin-bottom: 0; }
  .article-content ul, .article-content ol {
    margin: 0 0 24px;
    padding-left: 1.5em;
  }
  .article-content ul li { list-style: disc; }
  .article-content ol li { list-style: decimal; }
  .article-content li { margin-bottom: 8px; line-height: 1.8; }
  .article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
  }
  .article-content th {
    background: var(--color-bg);
    font-weight: 600;
    text-align: left;
  }
  .article-content th, .article-content td {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
  }
  .article-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 32px 0;
  }

  /* ===== 标签 ===== */
  .article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
  }
  .tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 13px;
    border-radius: 999px;
  }

  /* ===== 内容未找到 ===== */
  .article-not-found {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 64px 40px;
    text-align: center;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
  }
  .not-found-icon { font-size: 48px; color: #c0c4cc; margin-bottom: 16px; }
  .article-not-found h2 { font-size: 26px; color: var(--color-text); margin-bottom: 8px; }
  .article-not-found p { color: var(--color-text-secondary); margin-bottom: 24px; }

  /* ===== 相关推荐 ===== */
  .related-section { margin-top: 48px; }
  .section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
  }
  .section-head h2 { font-size: 22px; font-weight: 700; color: var(--color-text); }
  .section-link { font-size: 14px; color: var(--color-primary); font-weight: 600; transition: color .2s; }
  .section-link:hover { color: var(--color-primary-dark); text-decoration: underline; }
  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .related-card {
    background: var(--color-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(232, 228, 223, 0.5);
    transition: transform .3s ease, box-shadow .3s ease;
    display: block;
  }
  .related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .related-thumb {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--color-bg);
  }
  .related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s ease;
  }
  .related-card:hover .related-thumb img { transform: scale(1.03); }
  .related-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    padding: 16px 16px 4px;
    line-height: 1.4;
  }
  .related-card p {
    font-size: 13px;
    color: var(--color-text-secondary);
    padding: 0 16px 16px;
    line-height: 1.6;
  }

  /* ===== 文章底部 CTA ===== */
  .article-cta {
    margin-top: 48px;
    background: var(--color-dark);
    border-radius: var(--radius);
    padding: 44px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .article-cta::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--color-accent);
  }
  .article-cta h2 {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .article-cta p {
    color: #9CA3AF;
    font-size: 14px;
    margin-bottom: 24px;
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: var(--color-dark);
    color: #D1D5DB;
    position: relative;
    padding-top: 48px;
  }
  .site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--color-accent);
  }
  .footer-top {
    display: grid;
    grid-template-columns: 3fr 2fr 2fr 2fr;
    gap: 40px;
    padding-bottom: 40px;
  }
  .footer-brand .logo { color: #fff; }
  .footer-desc {
    font-size: 13px;
    color: #9CA3AF;
    line-height: 1.7;
    margin: 16px 0;
    max-width: 320px;
  }
  .footer-social { display: flex; gap: 10px; }
  .footer-social a {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background .25s ease, transform .25s ease;
  }
  .footer-social a:hover { background: var(--color-primary); transform: translateY(-2px); }
  .footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
  }
  .footer-col ul li { margin-bottom: 10px; }
  .footer-col ul a {
    color: #D1D5DB;
    font-size: 14px;
    transition: color .25s ease;
  }
  .footer-col ul a:hover { color: var(--color-primary); }
  .footer-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #9CA3AF;
    margin-bottom: 10px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    text-align: center;
  }
  .copyright { font-size: 13px; color: #6B7280; }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .related-grid { grid-template-columns: 1fr 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  }

  @media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .main-nav {
      display: none;
      position: absolute;
      top: 64px;
      left: 0; right: 0;
      background: var(--color-card);
      border-bottom: 1px solid var(--color-border);
      box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
      max-height: calc(100vh - 64px);
      overflow-y: auto;
    }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; padding: 16px; gap: 6px; }
    .main-nav a { padding: 12px 16px; border-radius: 10px; }
    .header-actions .btn-sm { display: none; }
    .article-content { padding: 28px 20px; border-radius: 12px; }
    .article-header h1 { font-size: 28px; }
    .container { padding: 0 16px; }
    .article-cta { padding: 32px 20px; }
  }

  @media (max-width: 520px) {
    .logo { font-size: 16px; }
    .logo-icon { width: 32px; height: 32px; font-size: 13px; }
    .footer-top { grid-template-columns: 1fr; gap: 28px; }
    .related-grid { grid-template-columns: 1fr; }
    .article-header h1 { font-size: 24px; }
    .article-content p { font-size: 15px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 6px; }
    .breadcrumb { font-size: 12px; overflow-x: auto; white-space: nowrap; padding-bottom: 4px; }
    .search-box input { width: 180px; }
  }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --color-primary: #B4232D;
  --color-primary-dark: #8E1820;
  --color-primary-soft: rgba(180,35,45,0.08);
  --color-accent: #C9A66B;
  --color-dark: #16181D;
  --color-dark-soft: #23262E;
  --color-bg: #F6F4F0;
  --color-card: #FFFFFF;
  --color-text: #2B2F36;
  --color-text-secondary: #6B7280;
  --color-border: #E8E4DF;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --shadow-card: 0 2px 12px rgba(22,24,29,0.06);
  --shadow-hover: 0 10px 24px rgba(22,24,29,0.10);
  --header-h: 64px;
  --container-w: 1200px;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease; }
ul, ol, dl { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
section[id] { scroll-margin-top: 80px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.content-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: all .25s ease;
}
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 6px 16px rgba(180,35,45,0.24); }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(180,35,45,0.32); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { border: 1.5px solid var(--color-primary); color: var(--color-primary); background: transparent; }
.btn-outline:hover { background: var(--color-primary-soft); }
.btn-outline:active { background: rgba(180,35,45,0.14); }
.btn-outline-light { border: 1.5px solid rgba(255,255,255,0.7); color: #fff; background: rgba(255,255,255,0.08); }
.btn-outline-light:hover { background: rgba(255,255,255,0.16); color: #fff; transform: translateY(-2px); }
.btn-outline-light:active { transform: translateY(0); }
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-lg { padding: 15px 30px; font-size: 16px; }
a:focus-visible, button:focus-visible { outline: 2px solid rgba(180,35,45,0.45); outline-offset: 2px; }

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(246,244,240,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232,228,223,0.85);
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled { box-shadow: 0 6px 20px rgba(22,24,29,0.07); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 100%; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; letter-spacing: -0.2px; color: var(--color-text); white-space: nowrap; }
.logo-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 15px;
  box-shadow: 0 4px 10px rgba(180,35,45,0.25);
  flex: none;
}
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: 4px; }
.main-nav a { display: block; padding: 9px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--color-text-secondary); }
.main-nav a:hover { color: var(--color-primary); background: var(--color-primary-soft); }
.main-nav a.active { color: #fff; background: var(--color-primary); box-shadow: 0 4px 12px rgba(180,35,45,0.28); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.header-cta { box-shadow: 0 4px 10px rgba(180,35,45,0.2); }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  border-radius: 8px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 18px;
}
.nav-toggle:hover { background: rgba(180,35,45,0.14); }

/* ========== 分类页 Banner ========== */
.cat-hero {
  position: relative;
  padding: 148px 0 72px;
  background:
    linear-gradient(100deg, rgba(22,24,29,0.93) 0%, rgba(22,24,29,0.80) 52%, rgba(180,35,45,0.55) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; right: -80px;
  width: 200px;
  background: linear-gradient(120deg, rgba(180,35,45,0.22), transparent);
  transform: skewX(-8deg);
  pointer-events: none;
}
.cat-hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, rgba(201,166,107,0.35) 55%, transparent 100%);
}
.cat-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.64); margin-bottom: 18px; flex-wrap: wrap; }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb .sep { opacity: .5; }
.cat-hero h1 { font-size: 34px; font-weight: 800; line-height: 1.25; letter-spacing: -0.5px; color: #fff; margin-bottom: 16px; max-width: 780px; }
.hero-sub { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.78); max-width: 640px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12px; font-weight: 600;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
}
.hero-chip i { color: var(--color-accent); font-size: 12px; }
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.cat-hero .container > * { animation: heroFadeUp .55s ease both; }
.cat-hero .container > *:nth-child(2) { animation-delay: .06s; }
.cat-hero .container > *:nth-child(3) { animation-delay: .12s; }
.cat-hero .container > *:nth-child(4) { animation-delay: .18s; }

/* ========== 通用区块 ========== */
.section { padding: 72px 0; }
.section-alt { background: var(--color-card); }
.section-dark { background: var(--color-dark); }
.section-head { margin-bottom: 44px; }
.section-head h2 { font-size: 30px; font-weight: 700; line-height: 1.35; color: var(--color-text); letter-spacing: -0.3px; }
.section-head p { margin-top: 10px; font-size: 15px; color: var(--color-text-secondary); max-width: 640px; }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: rgba(255,255,255,0.6); }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 12px; font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-tag-dark { background: rgba(201,166,107,0.12); color: var(--color-accent); }

/* ========== 图文模块 ========== */
.module-row + .module-row { margin-top: 36px; }
.module-figure {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: var(--color-dark-soft);
}
.module-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.figure-label {
  position: absolute;
  left: 16px; bottom: 16px;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(22,24,29,0.82);
  color: #fff;
  font-size: 12px; font-weight: 600;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.figure-label i { color: var(--color-accent); }
.module-text { padding: 12px 8px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.eyebrow::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--color-primary); }
.module-text h2 { font-size: 26px; font-weight: 700; line-height: 1.4; color: var(--color-text); margin-bottom: 16px; letter-spacing: -0.2px; }
.module-text p { font-size: 15px; line-height: 1.85; color: var(--color-text-secondary); margin-bottom: 16px; }
.module-text p:last-child { margin-bottom: 0; }
.check-list { margin-top: 6px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; padding: 7px 0; font-size: 14px; color: var(--color-text); line-height: 1.6; }
.check-list i { color: var(--color-primary); font-size: 15px; margin-top: 3px; flex: none; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  font-size: 13px; font-weight: 600;
  color: var(--color-text-secondary);
}
.tag i { color: var(--color-primary); }

/* ========== 深色核对清单 ========== */
.check-panel { position: relative; overflow: hidden; }
.check-panel::before {
  content: "";
  position: absolute;
  top: -120px; right: -100px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180,35,45,0.28), transparent 70%);
  pointer-events: none;
}
.check-panel .grid-x { position: relative; z-index: 1; }
.check-panel-card {
  height: 100%;
  padding: 28px 22px;
  border-radius: var(--radius-card);
  background: var(--color-dark-soft);
  border: 1px solid rgba(255,255,255,0.08);
  transition: transform .3s ease, border-color .3s ease;
}
.check-panel-card:hover { transform: translateY(-4px); border-color: rgba(201,166,107,0.42); }
.check-panel-card .card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: 0 6px 16px rgba(180,35,45,0.35);
  margin-bottom: 18px;
}
.check-panel-card h3 { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.check-panel-card p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.65); margin-bottom: 0; }
.check-panel-card .card-badge {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px; font-weight: 600;
  color: var(--color-accent);
  background: rgba(201,166,107,0.12);
}

/* ========== FAQ ========== */
.faq-section { background: var(--color-card); padding: 72px 0; }
.faq-list { border-top: 1px solid var(--color-border); margin-top: 10px; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 56px;
  padding: 14px 8px;
  text-align: left;
  font-size: 16px; font-weight: 600;
  color: var(--color-text);
  transition: color .2s ease;
}
.faq-question:hover { color: var(--color-primary); }
.faq-question i { font-size: 14px; color: var(--color-text-secondary); transition: transform .25s ease, color .25s ease; flex: none; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--color-primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-answer { max-height: 320px; }
.faq-answer-inner { padding: 0 8px 22px; }
.faq-answer p { font-size: 14px; line-height: 1.8; color: var(--color-text-secondary); margin-bottom: 0; }

/* ========== CTA 条 ========== */
.cta-strip {
  position: relative;
  background: var(--color-dark);
  padding: 72px 0;
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.cta-strip::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, rgba(201,166,107,0.35) 50%, transparent 100%);
}
.cta-strip::after {
  content: "";
  position: absolute;
  bottom: -120px; left: 50%;
  transform: translateX(-50%);
  width: 560px; height: 260px;
  background: radial-gradient(ellipse, rgba(180,35,45,0.24), transparent 70%);
  pointer-events: none;
}
.cta-strip .container { position: relative; z-index: 1; }
.cta-kicker { font-size: 13px; font-weight: 600; letter-spacing: 3px; color: var(--color-accent); margin-bottom: 12px; }
.cta-strip h2 { font-size: 30px; font-weight: 700; margin-bottom: 12px; }
.cta-strip p { font-size: 15px; color: rgba(255,255,255,0.65); margin-bottom: 28px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ========== 页脚 ========== */
.site-footer { background: var(--color-dark); color: #D1D5DB; padding-top: 64px; }
.site-footer::before { content: ""; display: block; height: 3px; background: linear-gradient(90deg, var(--color-accent) 0%, rgba(201,166,107,0.3) 40%, transparent 100%); }
.footer-top { display: grid; grid-template-columns: 4fr 2fr 2fr 3fr; gap: 40px; padding: 8px 0 44px; }
.footer-brand .logo { color: #fff; font-size: 16px; margin-bottom: 6px; }
.footer-desc { font-size: 13px; line-height: 1.8; color: #9CA3AF; margin: 16px 0 20px; max-width: 300px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  color: #D1D5DB;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 15px;
  transition: all .2s ease;
}
.footer-social a:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: #D1D5DB; }
.footer-col ul a:hover { color: var(--color-primary); }
.footer-contact .contact-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #9CA3AF; margin-bottom: 12px; line-height: 1.5; }
.footer-contact i { color: var(--color-accent); width: 16px; text-align: center; flex: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 13px; color: #6B7280; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    margin-left: 0;
    display: none;
    padding: 14px 16px 18px;
    background: rgba(246,244,240,0.98);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 20px 30px rgba(22,24,29,0.1);
    z-index: 999;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 6px; }
  .main-nav a { padding: 12px 14px; border-radius: 10px; font-size: 15px; }
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .cat-hero { padding: 132px 0 64px; }
  .cat-hero h1 { font-size: 30px; }
  .module-text { padding: 8px 4px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section, .faq-section, .cta-strip { padding: 48px 0; }
  .cat-hero { padding: 120px 0 52px; }
  .cat-hero h1 { font-size: 26px; }
  .hero-sub { font-size: 13px; }
  .section-head h2, .cta-strip h2 { font-size: 22px; }
  .module-text h2 { font-size: 22px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { width: 100%; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .container { padding: 0 16px; }
  .content-narrow { padding: 0 16px; }
}
@media (max-width: 520px) {
  .logo-text { font-size: 14px; }
  .logo-icon { width: 32px; height: 32px; font-size: 13px; }
  .cat-hero { padding: 108px 0 44px; }
  .cat-hero h1 { font-size: 23px; }
  .hero-chips { gap: 8px; margin-top: 20px; }
  .btn { font-size: 14px; }
  .btn-lg { font-size: 15px; }
  .faq-question { font-size: 15px; }
  .module-figure { margin-bottom: 4px; }
  .footer-bottom { padding: 16px 10px; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #B4232D;
            --color-primary-dark: #8E1820;
            --color-primary-soft: rgba(180, 35, 45, 0.08);
            --color-accent: #C9A66B;
            --color-dark: #16181D;
            --color-dark-soft: #23262E;
            --color-bg: #F6F4F0;
            --color-card: #FFFFFF;
            --color-text: #2B2F36;
            --color-text-secondary: #6B7280;
            --color-border: #E8E4DF;
            --radius-card: 14px;
            --radius-btn: 8px;
            --shadow-card: 0 2px 12px rgba(22, 24, 29, 0.06);
            --shadow-hover: 0 10px 24px rgba(22, 24, 29, 0.10);
            --font-main: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, Arial, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 28px;
            background: var(--color-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(180, 35, 45, 0.4);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 28px;
            background: transparent;
            color: var(--color-primary);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            transition: background 0.25s ease, transform 0.2s ease, color 0.25s ease;
        }
        .btn-secondary:hover {
            background: var(--color-primary-soft);
            color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid rgba(180, 35, 45, 0.4);
            outline-offset: 2px;
        }

        /* ===== Header / 导航 ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 120;
            height: 64px;
            background: rgba(246, 244, 240, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(232, 228, 223, 0.9);
            transition: height 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
        }
        .main-nav.scrolled {
            height: 56px;
            background: rgba(246, 244, 240, 0.98);
            box-shadow: 0 4px 20px rgba(22, 24, 29, 0.08);
        }
        .nav-inner {
            max-width: 1200px;
            height: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            font-size: 15px;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .main-nav ul a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            transition: background 0.2s ease, color 0.2s ease;
            text-align: center;
        }
        .main-nav ul a:hover {
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }
        .main-nav ul a.active {
            background: var(--color-primary-soft);
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            gap: 5px;
            border-radius: 8px;
            background: var(--color-primary-soft);
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
            transition: transform 0.25s ease, opacity 0.25s ease;
        }
        .main-nav.open .nav-toggle span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .main-nav.open .nav-toggle span:nth-child(2) {
            opacity: 0;
        }
        .main-nav.open .nav-toggle span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 260px;
            padding: 80px 0 56px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            color: #fff;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(22, 24, 29, 0.62);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .crumb {
            font-size: 13px;
            opacity: 0.8;
            margin-bottom: 12px;
        }
        .page-hero .crumb a {
            color: #fff;
            opacity: 0.9;
        }
        .page-hero .crumb a:hover {
            opacity: 1;
            color: var(--color-accent);
        }
        .page-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .page-hero .hero-sub {
            font-size: 15px;
            opacity: 0.85;
            max-width: 640px;
        }

        /* ===== 通用板块间距 ===== */
        .section-pad {
            padding: 72px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--color-text-secondary);
        }

        /* ===== 服务卡片 ===== */
        .info-services {
            background: var(--color-bg);
        }
        .service-card {
            background: var(--color-card);
            border: 1px solid rgba(255, 255, 255, 0);
            border-radius: var(--radius-card);
            padding: 30px 26px 26px;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary-soft);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--color-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-primary);
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-secondary);
            margin-bottom: 0;
        }

        /* ===== 图文模块 ===== */
        .feature-block {
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .feature-block .cell {
            margin-bottom: 0;
        }
        .feature-text {
            padding-right: 24px;
        }
        .feature-block.reverse .feature-text {
            padding-right: 0;
            padding-left: 24px;
        }
        .feature-text .badge {
            display: inline-block;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 16px;
        }
        .feature-text h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 14px;
        }
        .feature-text p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 14px;
        }
        .feature-text .btn-secondary {
            margin-top: 8px;
        }
        .feature-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .feature-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        /* ===== 数据指标 ===== */
        .stats-section {
            background: var(--color-dark);
            padding: 60px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .stat-item {
            text-align: center;
            padding: 20px 8px;
        }
        .stat-number {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: 72px 0;
        }
        .faq-section .section-head {
            margin-bottom: 40px;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-q {
            width: 100%;
            min-height: 52px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            padding: 14px 4px;
            transition: color 0.2s ease;
        }
        .faq-q:hover {
            color: var(--color-primary);
        }
        .faq-q .icon {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            font-size: 14px;
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-q .icon {
            transform: rotate(180deg);
        }
        .faq-a {
            display: none;
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-secondary);
            padding: 0 4px 18px;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #B4232D, #8E1820);
            padding: 64px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section .cta-inner {
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-section .cta-lead {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 12px;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 24px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-cta-light {
            background: #fff;
            color: var(--color-primary);
        }
        .cta-section .btn-cta-light:hover {
            background: rgba(255, 255, 255, 0.88);
            color: var(--color-primary-dark);
        }
        .cta-section .btn-cta-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.85);
            color: #fff;
        }
        .cta-section .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-dark);
            color: #D1D5DB;
            padding-top: 56px;
            border-top: 3px solid var(--color-accent);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 4fr 2fr 2fr 3fr;
            gap: 36px;
            padding-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .footer-brand .logo .logo-icon {
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-accent);
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #9CA3AF;
            margin: 16px 0 18px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 8px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            color: #9CA3AF;
            font-size: 15px;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .footer-social a:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: #D1D5DB;
            transition: color 0.2s ease, opacity 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--color-primary);
            opacity: 1;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #9CA3AF;
            margin-bottom: 12px;
        }
        .contact-item i {
            width: 18px;
            text-align: center;
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
        }
        .copyright {
            font-size: 13px;
            color: #6B7280;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(246, 244, 240, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                padding: 12px 16px 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-hover);
            }
            .main-nav.open ul {
                display: flex;
            }
            .main-nav ul a {
                display: block;
                text-align: center;
                padding: 10px 16px;
                font-size: 15px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-inner {
                padding: 0 16px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .page-hero {
                min-height: 220px;
                padding: 64px 0 40px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .faq-section {
                padding: 48px 0;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .feature-text {
                padding-right: 0;
                margin-bottom: 24px;
            }
            .feature-block.reverse .feature-text {
                padding-left: 0;
                order: 1;
            }
            .feature-block.reverse .feature-image {
                order: 2;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-section {
                padding: 40px 0;
            }
            .stat-number {
                font-size: 28px;
            }
            .btn-primary,
            .btn-secondary,
            .cta-section .btn-cta-light,
            .cta-section .btn-cta-outline {
                width: 100%;
                max-width: 320px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .logo span:last-child {
                font-size: 15px;
            }
        }

        /* ===== Foundation 网格微调 ===== */
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
    :root {
      --color-primary: #B4232D;
      --color-primary-dark: #8E1820;
      --color-primary-soft: rgba(180, 35, 45, 0.08);
      --color-accent: #C9A66B;
      --color-dark: #16181D;
      --color-dark-soft: #23262E;
      --color-bg: #F6F4F0;
      --color-card: #FFFFFF;
      --color-text: #2B2F36;
      --color-text-secondary: #6B7280;
      --color-border: #E8E4DF;
      --radius-card: 14px;
      --radius-btn: 8px;
      --radius-img: 12px;
      --shadow-card: 0 2px 12px rgba(22, 24, 29, 0.06);
      --shadow-hover: 0 10px 24px rgba(22, 24, 29, 0.10);
      --transition: 0.25s ease;
    }

    /* ========== 基础 Reset ========== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, Arial, sans-serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-text);
      background: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--color-primary-dark);
    }
    img {
      max-width: 100%;
      display: block;
    }
    ul,
    ol {
      list-style: none;
    }
    button,
    input,
    textarea {
      font-family: inherit;
      font-size: inherit;
      border: none;
      outline: none;
      background: none;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    h1,
    h2,
    h3,
    h4 {
      line-height: 1.3;
      font-weight: 700;
      color: var(--color-text);
    }
    h1 {
      font-size: clamp(30px, 4vw, 44px);
      letter-spacing: -0.5px;
    }
    h2 {
      font-size: clamp(24px, 3vw, 32px);
      font-weight: 700;
    }
    h3 {
      font-size: 20px;
      font-weight: 600;
    }
    p {
      margin-bottom: 16px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.2px;
    }

    /* ========== 按钮 ========== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--color-primary);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 26px;
      border-radius: var(--radius-btn);
      transition: all 0.25s ease;
      border: 2px solid transparent;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--color-primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(180, 35, 45, 0.3);
    }
    .btn-primary:active {
      transform: translateY(0);
    }
    .btn-primary:focus-visible {
      outline: 2px solid rgba(180, 35, 45, 0.4);
      outline-offset: 2px;
    }
    .btn-lg {
      padding: 16px 38px;
      font-size: 16px;
    }
    .btn-sm {
      padding: 8px 18px;
      font-size: 14px;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1.5px solid var(--color-primary);
      color: var(--color-primary);
      font-size: 15px;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      transition: all 0.25s ease;
    }
    .btn-outline:hover {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
    }

    /* ========== 站点头部与导航 ========== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 64px;
      background: rgba(246, 244, 240, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(232, 228, 223, 0.8);
      z-index: 1000;
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .site-header.scrolled {
      box-shadow: 0 4px 20px rgba(22, 24, 29, 0.08);
    }
    .header-inner {
      max-width: 1280px;
      height: 64px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 800;
      color: var(--color-text);
      white-space: nowrap;
    }
    .logo:hover {
      color: var(--color-text);
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-dark);
      color: var(--color-accent);
      border-radius: 10px;
      font-size: 16px;
      flex-shrink: 0;
    }
    .main-nav ul {
      display: flex;
      align-items: center;
      gap: 30px;
    }
    .main-nav a {
      font-size: 14.5px;
      font-weight: 600;
      color: var(--color-text);
      padding: 6px 4px;
      position: relative;
      transition: color 0.2s ease;
    }
    .main-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: var(--color-primary);
      border-radius: 2px;
      transition: width 0.25s ease;
    }
    .main-nav a:hover {
      color: var(--color-primary);
    }
    .main-nav a.active {
      color: var(--color-primary);
    }
    .main-nav a.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-size: 20px;
      cursor: pointer;
    }
    .nav-toggle:focus-visible {
      outline: 2px solid rgba(180, 35, 45, 0.4);
      outline-offset: 2px;
    }

    /* ========== 分类页 Hero ========== */
    .category-hero {
      padding: 150px 0 90px;
      background: linear-gradient(rgba(22, 24, 29, 0.62), rgba(22, 24, 29, 0.62)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      color: #fff;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 20% 80%, rgba(201, 166, 107, 0.1), transparent 40%);
      pointer-events: none;
    }
    .category-hero-inner {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
    }
    .category-hero h1 {
      color: #fff;
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 800;
      margin-bottom: 16px;
    }
    .category-hero p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 16px;
      line-height: 1.8;
      max-width: 640px;
      margin: 0 auto 30px;
    }
    .category-hero .btn-primary {
      background: var(--color-accent);
      color: var(--color-dark);
    }
    .category-hero .btn-primary:hover {
      background: #b58e55;
      color: var(--color-dark);
    }
    .category-hero-line {
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 200px;
      height: 3px;
      background: var(--color-accent);
      border-radius: 3px 3px 0 0;
    }

    /* ========== 数据指标 ========== */
    .stats-section {
      background: var(--color-bg);
      padding: 48px 0;
    }
    .stats-grid {
      margin-top: -40px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 24px;
    }
    .stat-card {
      background: var(--color-card);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 28px 20px;
      text-align: center;
      flex: 1;
      min-width: 160px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .stat-num {
      font-size: 38px;
      font-weight: 800;
      color: var(--color-primary);
      line-height: 1.2;
      letter-spacing: -0.5px;
    }
    .stat-label {
      display: block;
      margin-top: 6px;
      font-size: 14px;
      color: var(--color-text-secondary);
    }

    /* ========== 图文区块 ========== */
    .feature-row {
      padding: 80px 0;
    }
    .feature-row-alt {
      background: var(--color-card);
    }
    .feature-row-inner {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 40px;
    }
    .feature-text {
      flex: 1 1 45%;
    }
    .feature-media {
      flex: 1 1 45%;
      position: relative;
    }
    .feature-media img {
      border-radius: var(--radius-img);
      box-shadow: var(--shadow-hover);
      width: 100%;
      aspect-ratio: 4/3;
      object-fit: cover;
    }
    .feature-text h2 {
      margin-bottom: 18px;
    }
    .feature-text p {
      color: var(--color-text-secondary);
      font-size: 15px;
      line-height: 1.75;
    }
    .feature-float-card {
      position: absolute;
      right: -12px;
      bottom: 24px;
      background: var(--color-card);
      border-radius: 12px;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text);
      animation: float 3s ease-in-out infinite;
    }
    .feature-float-card i {
      color: var(--color-primary);
      font-size: 18px;
    }
    @keyframes float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }

    /* ========== 适用场景 ========== */
    .scenario-section {
      background: var(--color-bg);
      padding: 80px 0;
    }
    .scenario-section .section-header {
      text-align: center;
      margin-bottom: 44px;
    }
    .scenario-section .section-header h2 {
      margin-top: 10px;
    }
    .scenario-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
    }
    .scenario-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 30px 24px;
      flex: 1;
      min-width: 240px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .scenario-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
    }
    .scenario-card h3 {
      margin-bottom: 8px;
    }
    .scenario-card p {
      color: var(--color-text-secondary);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ========== FAQ ========== */
    .faq-section {
      background: var(--color-card);
      padding: 80px 0;
    }
    .faq-section .section-header {
      text-align: center;
      margin-bottom: 40px;
    }
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      border-bottom: 1px solid var(--color-border);
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      cursor: pointer;
      transition: color 0.2s ease;
      text-align: left;
    }
    .faq-question:hover {
      color: var(--color-primary);
    }
    .faq-question:focus-visible {
      outline: 2px solid rgba(180, 35, 45, 0.4);
      outline-offset: 2px;
      border-radius: 4px;
    }
    .faq-icon {
      font-size: 14px;
      color: var(--color-text-secondary);
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
      color: var(--color-primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--color-text-secondary);
      font-size: 14px;
      line-height: 1.75;
      padding: 0;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 0 16px;
    }

    /* ========== CTA ========== */
    .cta-section {
      background: var(--color-dark);
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--color-accent);
    }
    .cta-inner {
      text-align: center;
      max-width: 700px;
      margin: 0 auto;
    }
    .cta-inner h2 {
      color: #fff;
      margin-bottom: 24px;
      font-size: clamp(24px, 3vw, 32px);
    }
    .cta-inner .btn-primary {
      background: var(--color-primary);
      color: #fff;
      font-size: 17px;
      padding: 16px 42px;
    }
    .cta-inner .btn-primary:hover {
      background: #c1303c;
    }
    .cta-note {
      margin-top: 16px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--color-dark);
      color: #D1D5DB;
      padding-top: 60px;
      border-top: 3px solid var(--color-accent);
    }
    .footer-top {
      display: flex;
      flex-wrap: wrap;
      gap: 40px;
      padding-bottom: 44px;
    }
    .footer-brand {
      flex: 2 1 260px;
    }
    .footer-brand .logo {
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-brand .logo:hover {
      color: #fff;
    }
    .footer-brand .logo-icon {
      background: var(--color-primary);
      color: #fff;
    }
    .footer-desc {
      margin-top: 12px;
      font-size: 13px;
      color: #9CA3AF;
      line-height: 1.7;
      max-width: 300px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
      margin-top: 16px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.06);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #D1D5DB;
      font-size: 14px;
      transition: all 0.25s ease;
    }
    .footer-social a:hover {
      background: var(--color-primary);
      color: #fff;
      transform: translateY(-2px);
    }
    .footer-col {
      flex: 1 1 150px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: #D1D5DB;
      font-size: 14px;
      transition: color 0.2s ease;
    }
    .footer-col ul li a:hover {
      color: var(--color-accent);
    }
    .footer-contact .contact-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: #D1D5DB;
      margin-bottom: 10px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      text-align: center;
      font-size: 13px;
      color: #6B7280;
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 16px 24px;
        transform: translateY(-120%);
        transition: transform 0.3s ease;
        z-index: 999;
      }
      .main-nav.open {
        transform: translateY(0);
      }
      .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
      }
      .main-nav a {
        display: block;
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid rgba(232, 228, 223, 0.6);
      }
      .main-nav a::after {
        display: none;
      }
      .nav-toggle {
        display: inline-flex;
      }
      .header-actions .btn-primary {
        display: none;
      }
      .feature-row-inner {
        flex-direction: column;
      }
      .feature-row-inner.reverse {
        flex-direction: column;
      }
      .feature-media,
      .feature-text {
        flex: 1 1 100%;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 16px;
      }
      .category-hero {
        padding: 130px 0 70px;
      }
      .stats-grid {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
      }
      .stat-card {
        min-width: 100%;
      }
      .scenario-grid {
        flex-direction: column;
      }
      .scenario-card {
        min-width: 100%;
      }
      .feature-float-card {
        right: 8px;
        bottom: 12px;
        padding: 10px 14px;
        font-size: 12px;
      }
      .footer-top {
        flex-direction: column;
        gap: 32px;
      }
      .footer-col {
        flex: 1 1 100%;
      }
    }

    @media (max-width: 520px) {
      .logo {
        font-size: 15px;
      }
      .header-inner {
        padding: 0 16px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
      .category-hero p {
        font-size: 14.5px;
      }
      .btn-lg {
        padding: 14px 28px;
        font-size: 15px;
      }
    }