/* roulang page: index */
:root {
  --color-primary: #101014;
  --color-accent: #A4844C;
  --color-bg: #F5F2ED;
  --color-bg-light: #EEEAE3;
  --color-text: #2A2A2E;
  --color-text-secondary: #77716B;
  --color-disabled: #B0AAA2;
  --radius-small: 4px;
  --radius-large: 8px;
  --shadow-default: 0 2px 10px rgba(0,0,0,0.05);
  --shadow-hover: 0 12px 28px rgba(0,0,0,0.10);
  --transition: 0.3s ease;
  --spacing-section: 96px;
  --spacing-section-mobile: 56px;
  --container-max: 1200px;
  --header-height: 72px;
  --tabbar-height: 60px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--spacing-section) 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
  border-left: 3px solid var(--color-accent);
  padding-left: 12px;
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 1rem;
  max-width: 640px;
  line-height: 1.8;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), border-bottom var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(245, 242, 237, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
}

.site-header.scrolled .brand-text,
.site-header.scrolled .main-nav a {
  color: var(--color-primary);
}

.site-header.scrolled .main-nav a.active {
  color: var(--color-accent);
}

.site-header.scrolled .header-cta {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.brand-icon {
  width: 34px;
  height: 34px;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  border-right-color: transparent;
  transform: rotate(-45deg);
  display: inline-block;
  flex-shrink: 0;
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.main-nav {
  display: flex;
  gap: 36px;
  margin-left: 60px;
}

.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}

.main-nav a:hover {
  color: var(--color-accent);
}

.main-nav a.active {
  color: var(--color-accent);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-small);
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 600;
  background: transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.header-cta:hover {
  background: rgba(164, 132, 76, 0.12);
  transform: translateY(-2px);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(16, 16, 20, 0.78) 0%, rgba(16, 16, 20, 0.88) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 120px 24px 80px;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(164, 132, 76, 0.15);
  border: 1px solid rgba(164, 132, 76, 0.35);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.hero-decoration {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), rgba(164, 132, 76, 0.2));
  border-radius: 3px;
  margin: 24px auto;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.75);
  max-width: 620px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: var(--radius-small);
  font-size: 1rem;
  font-weight: 600;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 4px 18px rgba(164, 132, 76, 0.3);
}

.btn-primary:hover {
  background: #94744A;
  border-color: #94744A;
  box-shadow: 0 6px 24px rgba(164, 132, 76, 0.4);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline-light:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(164, 132, 76, 0.08);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 64px;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* Story */
.story {
  background: var(--color-bg);
  padding: var(--spacing-section) 0;
}

.story-grid {
  display: flex;
  align-items: center;
  gap: 60px;
}

.story-text {
  flex: 1;
}

.story-text h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.story-text p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.story-image {
  flex: 1;
}

.story-image img {
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-hover);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

.story-points {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.story-point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
}

.story-point i {
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* Featured */
.featured {
  background: var(--color-bg-light);
  padding: var(--spacing-section) 0;
}

.featured-header {
  text-align: center;
  margin-bottom: 48px;
}

.featured-header .section-title {
  margin-bottom: 12px;
}

.featured-header .section-desc {
  margin: 0 auto;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-default);
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.feature-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.feature-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-card:hover .feature-card-img img {
  transform: scale(1.03);
}

.feature-card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.feature-card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.feature-card-body p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  flex-grow: 1;
}

.feature-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 16px;
  transition: gap var(--transition);
}

.feature-card-link:hover {
  gap: 10px;
  color: #94744A;
}

/* Trust */
.trust {
  background: var(--color-bg);
  padding: 72px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.trust-grid {
  display: flex;
  justify-content: space-around;
  gap: 40px;
  text-align: center;
  flex-wrap: wrap;
}

.trust-item {
  padding: 20px;
  flex: 1;
  min-width: 160px;
}

.trust-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.trust-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.trust-line {
  width: 40px;
  height: 2px;
  background: rgba(164, 132, 76, 0.3);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* News */
.news {
  background: var(--color-bg);
  padding: var(--spacing-section) 0;
}

.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  background: #fff;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-default);
  padding: 28px 32px;
  margin-bottom: 16px;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.news-item:hover {
  box-shadow: var(--shadow-hover);
  border-left-color: var(--color-accent);
  transform: translateX(4px);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.news-cat {
  display: inline-block;
  background: rgba(164, 132, 76, 0.12);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 100px;
}

.news-date {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.news-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.5;
}

.news-title a {
  transition: color var(--transition);
}

.news-title a:hover {
  color: var(--color-accent);
}

.news-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 12px;
  transition: gap var(--transition);
}

.news-more:hover {
  gap: 10px;
}

.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  background: #fff;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-default);
}

/* FAQ */
.faq-section {
  background: var(--color-bg-light);
  padding: var(--spacing-section) 0;
}

.faq-header {
  text-align: center;
  margin-bottom: 40px;
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-small);
  margin-bottom: 12px;
  box-shadow: var(--shadow-default);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item.active {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(164, 132, 76, 0.04);
}

.faq-question i {
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s ease;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-light);
}

.faq-item.active .faq-answer {
  padding: 16px 24px;
  max-height: 300px;
}

/* CTA */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, rgba(16, 16, 20, 0.82) 0%, rgba(16, 16, 20, 0.9) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 96px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  color: #fff;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  margin: 0 auto 36px;
  font-size: 1rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  padding: 64px 0 32px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
}

.footer-brand {
  flex: 1;
  min-width: 240px;
}

.footer-brand .brand-text {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 12px;
}

.footer-links {
  flex: 1;
  min-width: 160px;
}

.footer-links h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.85rem;
  padding: 6px 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Mobile Tab Bar */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: #fff;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  height: calc(var(--tabbar-height) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
  grid-template-columns: repeat(5, 1fr);
}

.mobile-tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.mobile-tabbar a i {
  font-size: 1.15rem;
}

.mobile-tabbar a.active {
  color: var(--color-accent);
}

.mobile-tabbar a.active i {
  color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
  .site-header {
    display: none;
  }

  .mobile-tabbar {
    display: grid;
  }

  body {
    padding-bottom: calc(var(--tabbar-height) + env(safe-area-inset-bottom));
  }

  .section {
    padding: var(--spacing-section-mobile) 0;
  }

  .story-grid {
    flex-direction: column;
    gap: 36px;
  }

  .story-image {
    order: -1;
  }

  .hero {
    padding: 100px 20px 60px;
  }

  .hero-stats {
    gap: 32px;
  }

  .trust-grid {
    gap: 20px;
  }

  .trust-item {
    min-width: 120px;
  }

  .news-item {
    padding: 20px;
  }

  .cta-section {
    padding: 64px 20px;
  }
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2.2rem;
  }

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

  .hero-cta {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .btn {
    width: 100%;
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stat-num {
    font-size: 1.5rem;
  }

  .hero-stat-label {
    font-size: 0.75rem;
  }

  .trust-num {
    font-size: 1.8rem;
  }

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

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

  .news-meta {
    gap: 10px;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 18px;
  }

  .faq-item.active .faq-answer {
    padding: 12px 18px;
  }
}

/* roulang page: article */
:root {
            --primary: #101014;
            --accent: #A4844C;
            --accent-light: #C0A26C;
            --bg-warm: #F5F2ED;
            --bg-light: #EEEAE3;
            --text-main: #2A2A2E;
            --text-secondary: #77716B;
            --text-disabled: #B0AAA2;
            --radius-sm: 4px;
            --radius-lg: 8px;
            --shadow-default: 0 2px 10px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.10);
            --transition: 0.3s ease;
            --container-max: 1200px;
            --section-padding: 96px;
            --section-padding-mobile: 56px;
            --font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-heading);
            background: var(--bg-warm);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: var(--section-padding) 0;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
            letter-spacing: 0.02em;
        }

        .btn-gold {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-gold:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-outline:hover {
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--primary);
            color: #fff;
        }

        .btn-dark:hover {
            background: #2A2A2E;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: var(--bg-warm);
            border-bottom: 1px solid transparent;
            transition: all var(--transition);
        }

        .site-header.scrolled {
            background: rgba(245, 242, 237, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(164, 132, 76, 0.2);
            box-shadow: var(--shadow-default);
        }

        .header-inner {
            max-width: var(--container-max);
            height: 72px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--accent);
            border-radius: 50%;
            position: relative;
            display: block;
        }

        .brand-icon::before {
            content: "";
            position: absolute;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 2px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) rotate(45deg);
        }

        .brand-text {
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-main);
        }

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

        .main-nav a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            font-weight: 500;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }

        .main-nav a:hover {
            color: var(--text-main);
        }

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

        .main-nav a.active {
            color: var(--text-main);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .header-cta {
            display: inline-block;
            padding: 8px 24px;
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
        }

        .header-cta:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 移动端底部 Tab ===== */
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-warm);
            border-top: 1px solid rgba(0, 0, 0, 0.06);
            z-index: 999;
            padding-bottom: env(safe-area-inset-bottom);
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.04);
        }

        .bottom-tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--text-secondary);
            font-size: 0.7rem;
            transition: all var(--transition);
        }

        .bottom-tab-item i {
            font-size: 1.1rem;
            transition: all var(--transition);
        }

        .bottom-tab-item:hover,
        .bottom-tab-item.active {
            color: var(--accent);
        }

        .bottom-tab-item.active i {
            color: var(--accent);
        }

        /* ===== 文章 Hero 区 ===== */
        .article-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 88px 0 72px;
            color: #fff;
        }

        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(16, 16, 20, 0.72);
        }

        .article-hero-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb-current {
            color: rgba(255, 255, 255, 0.9);
            max-width: 200px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(164, 132, 76, 0.2);
            border: 1px solid var(--accent);
            color: var(--accent-light);
            font-size: 0.8rem;
            border-radius: 30px;
            margin-bottom: 18px;
            letter-spacing: 0.05em;
        }

        .article-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 20px;
            color: #fff;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 28px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

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

        .article-meta i {
            color: var(--accent-light);
        }

        /* ===== 文章正文区 ===== */
        .article-body-section {
            padding: var(--section-padding) 0;
            background: var(--bg-warm);
        }

        .article-body-inner {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-excerpt {
            background: var(--bg-light);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 24px 28px;
            margin-bottom: 36px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-excerpt p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .article-content {
            max-width: 720px;
            margin: 0 auto 48px;
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-main);
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2.6rem 0 1rem;
            color: var(--text-main);
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(164, 132, 76, 0.2);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 2rem 0 0.8rem;
            color: var(--text-main);
            line-height: 1.4;
        }

        .article-content p {
            margin: 1.2rem 0;
        }

        .article-content a {
            color: var(--accent);
            border-bottom: 1px solid transparent;
        }

        .article-content a:hover {
            border-bottom-color: var(--accent);
        }

        .article-content blockquote {
            border-left: 3px solid var(--accent);
            background: var(--bg-light);
            padding: 16px 24px;
            margin: 1.8rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-content blockquote p {
            margin: 0;
        }

        .article-content ul,
        .article-content ol {
            margin: 1.2rem 0;
            padding-left: 1.6rem;
        }

        .article-content ul li,
        .article-content ol li {
            margin: 0.5rem 0;
            line-height: 1.7;
        }

        .article-content ul li::marker {
            color: var(--accent);
        }

        .article-content ol li::marker {
            color: var(--accent);
            font-weight: 600;
        }

        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            margin: 1.8rem 0;
            box-shadow: var(--shadow-default);
        }

        .article-content code {
            background: var(--bg-light);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-family: "SFMono-Regular", Consolas, monospace;
            font-size: 0.85em;
            color: var(--accent);
        }

        .article-content pre {
            background: var(--primary);
            color: #EDEAE5;
            padding: 20px 24px;
            border-radius: var(--radius-lg);
            overflow-x: auto;
            margin: 1.8rem 0;
            line-height: 1.6;
            font-size: 0.9rem;
        }

        .article-content pre code {
            background: none;
            color: #EDEAE5;
            padding: 0;
            font-size: inherit;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8rem 0;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--bg-light);
            padding: 10px 16px;
            text-align: left;
        }

        .article-content table th {
            background: var(--bg-light);
            font-weight: 600;
        }

        /* ===== 空状态 ===== */
        .article-empty {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            margin-bottom: 48px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-empty i {
            font-size: 3rem;
            color: var(--text-disabled);
            margin-bottom: 20px;
        }

        .article-empty p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* ===== 相关推荐 ===== */
        .article-related {
            border-top: 1px solid rgba(164, 132, 76, 0.15);
            padding-top: 40px;
            max-width: 720px;
            margin: 0 auto 24px;
        }

        .article-related-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-related-title::before {
            content: "";
            width: 4px;
            height: 22px;
            background: var(--accent);
            display: inline-block;
            border-radius: 2px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-warm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }

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

        .related-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .related-card:hover img {
            transform: scale(1.03);
        }

        .related-card-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-body h3 {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .related-card-body span {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 500;
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .related-card-body span i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }

        .related-card:hover .related-card-body span i {
            transform: translateX(3px);
        }

        /* ===== 返回列表 ===== */
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: all var(--transition);
            margin-bottom: 60px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .back-link:hover {
            color: var(--accent);
            transform: translateX(-4px);
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border: 1px solid rgba(164, 132, 76, 0.3);
            border-radius: 50%;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(164, 132, 76, 0.2);
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(1.6rem, 3.2vw, 2.4rem);
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 1rem;
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.6);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            max-width: 320px;
        }

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

        .footer-brand p {
            margin-top: 16px;
            font-size: 0.85rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 12px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-links h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
        }

        .footer-links a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
        }

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

            .mobile-bottom-tab {
                display: flex;
            }

            body {
                padding-bottom: 76px;
            }

            .section-padding {
                padding: var(--section-padding-mobile) 0;
            }

            .article-hero {
                padding: 64px 0 48px;
            }
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 56px 0 40px;
            }

            .article-hero-inner {
                text-align: center;
            }

            .article-title {
                font-size: 1.5rem;
            }

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

            .article-body-section {
                padding: 48px 0;
            }

            .article-excerpt {
                padding: 18px 20px;
                font-size: 0.9rem;
            }

            .article-content {
                font-size: 0.95rem;
                line-height: 1.75;
            }

            .cta-section {
                padding: 56px 0;
            }
        }

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

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .footer-top {
                flex-direction: column;
                gap: 32px;
            }

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

            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px;
            }
        }

        @media (min-width: 1025px) {
            .mobile-bottom-tab {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root{
  --color-dark:#101014;
  --color-gold:#A4844C;
  --color-bg:#F5F2ED;
  --color-bg-alt:#EEEAE3;
  --color-text:#2A2A2E;
  --color-text-sub:#77716B;
  --color-disabled:#B0AAA2;
  --color-border:#E2DDD4;
  --radius-sm:4px;
  --radius-lg:8px;
  --shadow-default:0 2px 10px rgba(0,0,0,0.05);
  --shadow-hover:0 12px 28px rgba(0,0,0,0.10);
  --transition:0.3s ease;
  --container-max:1200px;
  --section-padding:96px;
  --header-height:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border var(--transition),box-shadow var(--transition),transform var(--transition);}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:0 24px;
}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-height);
  background:rgba(245,242,237,0.96);
  border-bottom:1px solid transparent;
  transition:background var(--transition),border-color var(--transition),box-shadow var(--transition);
}
.site-header.scrolled{
  background:rgba(245,242,237,0.9);
  border-bottom:1px solid var(--color-border);
}
.header-inner{
  max-width:var(--container-max);
  margin:0 auto;
  height:100%;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-icon{
  width:32px;height:32px;border-radius:6px;
  background:linear-gradient(135deg,#A4844C 0%,#6B5231 100%);
  display:inline-block;position:relative;flex-shrink:0;
}
.brand-icon::after{
  content:'';position:absolute;top:8px;left:8px;width:16px;height:16px;
  border:2px solid #fff;border-radius:4px;
}
.brand-text{
  font-size:1.25rem;font-weight:700;color:var(--color-dark);letter-spacing:1px;
}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  font-size:0.95rem;font-weight:500;color:var(--color-text-sub);
  padding:6px 2px;position:relative;line-height:1.4;
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--color-gold);transition:width var(--transition);
}
.main-nav a:hover{color:var(--color-dark);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--color-dark);}
.main-nav a.active::after{width:100%;}
.header-cta{
  display:inline-block;padding:8px 24px;border:1.5px solid var(--color-gold);
  border-radius:var(--radius-sm);color:var(--color-gold);
  font-weight:600;font-size:0.95rem;transition:all var(--transition);
}
.header-cta:hover{
  background:var(--color-gold);color:#fff;transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 32px;border-radius:var(--radius-sm);
  font-size:1rem;font-weight:600;line-height:1.4;cursor:pointer;
  border:1.5px solid transparent;transition:all var(--transition);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn:focus-visible{outline:2px solid var(--color-gold);outline-offset:3px;}
.btn-primary{background:var(--color-gold);color:#fff;}
.btn-primary:hover{background:#8F6F3E;color:#fff;}
.btn-outline{border-color:var(--color-gold);color:var(--color-gold);background:transparent;}
.btn-outline:hover{background:var(--color-gold);color:#fff;}
.btn-outline-light{border-color:rgba(255,255,255,0.7);color:#fff;background:transparent;}
.btn-outline-light:hover{background:#fff;color:var(--color-dark);border-color:#fff;}
.btn-lg{padding:16px 44px;font-size:1.05rem;}

/* ===== Hero ===== */
.category-hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  padding:140px 0 100px;color:#fff;overflow:hidden;background:var(--color-dark);
}
.hero-bg{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background-size:cover;background-position:center;z-index:1;
}
.hero-overlay{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background:rgba(16,16,20,0.72);z-index:2;
}
.hero-content{position:relative;z-index:3;max-width:760px;}
.hero-badge{
  display:inline-block;padding:6px 18px;border:1px solid rgba(164,132,76,0.7);
  border-radius:100px;color:var(--color-gold);font-size:0.9rem;
  letter-spacing:2px;margin-bottom:24px;font-weight:600;
}
.category-hero h1{
  font-size:clamp(2.4rem,6vw,4.2rem);
  line-height:1.25;font-weight:800;letter-spacing:1px;color:#fff;margin-bottom:20px;
}
.hero-subtitle{
  font-size:1.125rem;line-height:1.8;color:rgba(255,255,255,0.85);
  max-width:560px;margin-bottom:40px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ===== Section base ===== */
.section{padding:var(--section-padding) 0;}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px;}
.section-tag{
  display:inline-block;color:var(--color-gold);font-size:0.9rem;font-weight:700;
  letter-spacing:3px;margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.7rem,3.2vw,2.6rem);line-height:1.3;font-weight:700;
  color:var(--color-dark);margin-bottom:12px;
}
.section-head p{color:var(--color-text-sub);font-size:1rem;line-height:1.8;}

/* ===== Step cards ===== */
.step-card{
  background:#fff;border-radius:var(--radius-lg);padding:32px 28px;
  box-shadow:var(--shadow-default);border:1px solid var(--color-border);
  height:100%;position:relative;transition:all var(--transition);
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.step-num{
  font-size:2.2rem;font-weight:800;color:var(--color-gold);line-height:1;
  display:block;margin-bottom:18px;opacity:0.85;
}
.step-card h3{font-size:1.2rem;font-weight:700;color:var(--color-dark);margin-bottom:10px;}
.step-card p{color:var(--color-text-sub);font-size:0.925rem;line-height:1.7;}

/* ===== Content row ===== */
.content-row{margin-bottom:72px;align-items:center;}
.content-row:last-of-type{margin-bottom:0;}
.content-text h3{
  font-size:1.6rem;font-weight:700;color:var(--color-dark);
  margin-bottom:16px;line-height:1.3;
}
.content-text p{
  color:var(--color-text-sub);line-height:1.8;margin-bottom:20px;font-size:1rem;
}
.content-img{
  border-radius:var(--radius-lg);box-shadow:var(--shadow-default);
  width:100%;object-fit:cover;aspect-ratio:16/11;
}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:10px;
  color:var(--color-text);font-size:0.95rem;
}
.check-list li::before{
  content:'✓';position:absolute;left:0;top:0;
  color:var(--color-gold);font-weight:700;font-size:1rem;
}

/* ===== Security stats ===== */
.section-security{background:var(--color-bg-alt);}
.stat-card{
  text-align:center;background:#fff;border-radius:var(--radius-lg);
  padding:40px 24px;box-shadow:var(--shadow-default);height:100%;
  transition:all var(--transition);border:1px solid transparent;
}
.stat-card:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-4px);
  border-color:var(--color-gold);
}
.stat-num{
  display:block;font-size:2.6rem;font-weight:800;color:var(--color-gold);
  line-height:1.2;margin-bottom:8px;
}
.stat-label{
  font-size:0.95rem;color:var(--color-text-sub);font-weight:500;
  display:block;letter-spacing:1px;
}

/* ===== FAQ ===== */
.section-faq{background:var(--color-bg);}
.faq-item{
  background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);
  margin-bottom:16px;overflow:hidden;box-shadow:var(--shadow-default);
  transition:box-shadow var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow-hover);}
.faq-item summary{
  cursor:pointer;padding:22px 28px;font-size:1.05rem;font-weight:600;
  color:var(--color-dark);list-style:none;position:relative;padding-right:56px;
  background:#fff;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'+';position:absolute;right:26px;top:50%;transform:translateY(-50%);
  font-size:1.5rem;font-weight:300;color:var(--color-gold);
  transition:transform var(--transition);line-height:1;
}
.faq-item[open] summary::after{content:'−';}
.faq-item[open] summary{color:var(--color-gold);}
.faq-item[open]{
  border-left:3px solid var(--color-gold);
  box-shadow:var(--shadow-hover);
}
.faq-content{padding:0 28px 24px;color:var(--color-text-sub);font-size:0.95rem;line-height:1.8;}

/* ===== Related card ===== */
.section-related{padding-top:0;}
.related-card{
  display:flex;align-items:center;gap:28px;
  background:#fff;border-radius:var(--radius-lg);padding:36px 40px;
  box-shadow:var(--shadow-default);border:1px solid var(--color-border);
  transition:all var(--transition);
}
.related-card:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-4px);
  border-color:var(--color-gold);
}
.related-icon{
  flex-shrink:0;width:64px;height:64px;border-radius:var(--radius-sm);
  background:var(--color-bg-alt);display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;color:var(--color-gold);
}
.related-info{flex:1;}
.related-info h3{font-size:1.2rem;font-weight:700;color:var(--color-dark);margin-bottom:4px;}
.related-info p{color:var(--color-text-sub);font-size:0.9rem;line-height:1.7;margin:0;}
.related-link{
  flex-shrink:0;color:var(--color-gold);font-weight:600;font-size:0.95rem;
  display:inline-flex;align-items:center;gap:6px;
}
.related-link i{transition:transform var(--transition);}
.related-card:hover .related-link i{transform:translateX(4px);}

/* ===== CTA block ===== */
.cta-block{
  background:var(--color-dark);color:#fff;padding:80px 0;
  position:relative;overflow:hidden;
}
.cta-block::before{
  content:'';position:absolute;top:0;right:0;width:400px;height:400px;
  background:radial-gradient(circle,rgba(164,132,76,0.2) 0%,transparent 70%);
}
.cta-inner{text-align:center;position:relative;z-index:2;max-width:680px;margin:0 auto;}
.cta-inner h2{
  font-size:clamp(1.7rem,3.2vw,2.6rem);font-weight:700;color:#fff;
  line-height:1.3;margin-bottom:16px;
}
.cta-inner p{color:rgba(255,255,255,0.8);font-size:1.05rem;margin-bottom:36px;}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{
  background:var(--color-dark);color:rgba(255,255,255,0.8);
  padding:70px 0 40px;margin-top:0;
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;
  gap:60px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:0.9rem;line-height:1.8;color:rgba(255,255,255,0.65);max-width:300px;}
.footer-links h4{
  color:#fff;font-size:1rem;font-weight:700;margin-bottom:18px;letter-spacing:1px;
}
.footer-links a{
  display:block;color:rgba(255,255,255,0.65);font-size:0.92rem;
  margin-bottom:12px;line-height:1.5;
}
.footer-links a:hover{color:var(--color-gold);padding-left:4px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:28px;font-size:0.86rem;color:rgba(255,255,255,0.45);
  flex-wrap:wrap;gap:8px;
}

/* ===== Mobile tabbar ===== */
.mobile-tabbar{
  display:none;position:fixed;bottom:0;left:0;right:0;z-index:1100;
  height:calc(60px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--color-border);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 16px rgba(0,0,0,0.05);
}
.mobile-tabbar .mobile-tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;height:60px;font-size:0.75rem;color:var(--color-text-sub);
}
.mobile-tabbar .mobile-tab i{font-size:1.2rem;line-height:1;}
.mobile-tabbar .mobile-tab span{font-size:0.7rem;line-height:1;}
.mobile-tabbar .mobile-tab.active{color:var(--color-gold);}
.mobile-tabbar .mobile-tab:hover{color:var(--color-gold);}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .site-header{display:none;}
  .mobile-tabbar{display:flex;}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom));}
  :root{--section-padding:64px;}
  .category-hero{padding:100px 0 72px;min-height:440px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767px){
  .footer-top{grid-template-columns:1fr;gap:36px;}
  .content-row{margin-bottom:56px;}
  .content-text h3{font-size:1.3rem;}
  .related-card{flex-direction:column;text-align:center;padding:28px 20px;}
  .related-link{justify-content:center;}
}
@media (max-width:640px){
  .hero-actions{flex-direction:column;width:100%;}
  .hero-actions .btn{width:100%;}
  .category-hero{min-height:400px;}
  .category-hero h1{font-size:clamp(1.9rem,5vw,2.6rem);}
  .stat-card{padding:28px 16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:40px;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{padding:18px 20px;padding-right:48px;font-size:0.95rem;}
  .faq-content{padding:0 20px 18px;}
}

/* roulang page: category2 */
:root {
  --primary: #101014;
  --accent: #A4844C;
  --bg: #F5F2ED;
  --bg-light: #EEEAE3;
  --text: #2A2A2E;
  --text-secondary: #77716B;
  --text-disabled: #B0AAA2;
  --white: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --radius-sm: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.10);
  --transition: 0.3s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button, input { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
body { min-height: 100vh; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(245, 242, 237, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  max-width: 1200px;
  height: 72px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  font-size: 1.15rem;
  display: inline-flex; align-items: center; justify-content: center;
  line-height: 1;
  flex-shrink: 0;
}
.brand-text { font-size: 1.25rem; font-weight: 700; color: var(--white); letter-spacing: 1px; transition: color var(--transition); }
.site-header.scrolled .brand-text { color: var(--text); }
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav a {
  position: relative;
  padding: 6px 2px;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a:hover, .main-nav a.active { color: var(--accent); }
.site-header.scrolled .main-nav a { color: var(--text); }
.site-header.scrolled .main-nav a:hover, .site-header.scrolled .main-nav a.active { color: var(--accent); }
.header-cta {
  padding: 8px 22px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
}
.header-cta:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(164, 132, 76, 0.25);
}
.site-header.scrolled .header-cta { color: var(--accent); }
.site-header.scrolled .header-cta:hover { color: var(--white); }

.mobile-tabs {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: var(--white);
  border-top: 1px solid var(--border);
  z-index: 1100;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
}
.mobile-tabs .tab-item {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px;
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  transition: color var(--transition);
}
.mobile-tabs .tab-item i { font-size: 1.1rem; }
.mobile-tabs .tab-item.active { color: var(--accent); }
.mobile-tabs .tab-item:hover { color: var(--accent); }

.hero {
  position: relative;
  min-height: 560px;
  display: flex; align-items: center;
  background: var(--primary);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16, 16, 20, 0.94) 0%, rgba(16, 16, 20, 0.78) 50%, rgba(16, 16, 20, 0.50) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 120px 0 80px;
  max-width: 760px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.3;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 18px;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover {
  background: #8a6d3b;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(164, 132, 76, 0.35);
}
.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: var(--white);
}
.btn-outline-light:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.section { padding: 96px 0; }
.section .container { position: relative; }
.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
  font-weight: 700;
}
.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.8;
}

.features { background: var(--bg); }
.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.03);
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(164, 132, 76, 0.12);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

.scenarios { background: var(--white); }
.scenario-item { margin-bottom: 80px; align-items: center; }
.scenario-item:last-child { margin-bottom: 0; }
.scenario-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.scenario-media img { width: 100%; transition: transform var(--transition); }
.scenario-item:hover .scenario-media img { transform: scale(1.03); }
.scenario-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(164, 132, 76, 0.10);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.scenario-content h3 { font-size: 1.5rem; font-weight: 700; line-height: 1.4; margin-bottom: 16px; color: var(--text); }
.scenario-content p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 16px; font-size: 0.95rem; }
.scenario-list { margin: 0; }
.scenario-list li {
  position: relative;
  padding-left: 20px;
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 8px;
}
.scenario-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

.process { background: var(--bg-light); }
.step-item {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}
.step-item::before {
  content: '';
  position: absolute;
  top: 64px; right: 12%;
  width: 76%;
  height: 1px;
  background: rgba(164, 132, 76, 0.25);
  z-index: 0;
}
.step-item:last-child::before { display: none; }
.step-num {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; font-weight: 700;
  position: relative;
  z-index: 1;
}
.step-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 0.88rem; color: var(--text-secondary); max-width: 230px; margin: 0 auto; line-height: 1.7; }

.stats { background: var(--primary); padding: 80px 0; }
.stats .section-title { color: var(--white); }
.stats .section-subtitle { color: rgba(255, 255, 255, 0.6); }
.stat-card { text-align: center; padding: 24px 0; }
.stat-num { font-size: clamp(2.4rem, 4vw, 3.6rem); font-weight: 700; color: var(--accent); line-height: 1.2; }
.stat-label { color: rgba(255, 255, 255, 0.65); font-size: 0.95rem; margin-top: 4px; }
.stat-divider { border-right: 1px solid rgba(255, 255, 255, 0.12); }
.news-ticker {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.news-ticker-title { color: var(--accent); font-size: 0.85rem; font-weight: 700; letter-spacing: 1px; margin-bottom: 16px; }
.news-item {
  display: flex; align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  padding: 8px 0;
}
.news-item i { color: var(--accent); font-size: 0.6rem; }

.faq-section { background: var(--bg); }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.03);
}
.faq-item.active { box-shadow: var(--shadow-hover); }
.faq-question {
  padding: 20px 24px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(245, 242, 237, 0.5); }
.faq-icon { color: var(--accent); font-size: 1.1rem; transition: transform var(--transition); flex-shrink: 0; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.45s ease; }
.faq-answer-inner {
  padding: 0 24px 22px;
  border-left: 3px solid var(--accent);
  margin-left: 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.9;
}

.cta-section {
  padding: 80px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(164, 132, 76, 0.2));
}
.cta-inner { text-align: center; max-width: 680px; margin: 0 auto; }
.cta-inner h2 {
  color: var(--white);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 14px;
}
.cta-inner p { color: rgba(255, 255, 255, 0.7); margin-bottom: 32px; font-size: 1rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.related-section { padding: 72px 0; background: var(--bg); }
.related-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  max-width: 960px; margin: 0 auto;
  border: 1px solid rgba(0, 0, 0, 0.03);
}
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.related-info h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.related-info p { color: var(--text-secondary); font-size: 0.95rem; max-width: 480px; }
.related-card .btn { flex-shrink: 0; }

.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}
.footer-top { display: flex; gap: 48px; flex-wrap: wrap; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-brand { flex: 1.4; min-width: 260px; }
.footer-brand .brand-text { color: var(--white); }
.footer-brand p { font-size: 0.9rem; margin-top: 16px; line-height: 1.8; max-width: 360px; color: rgba(255, 255, 255, 0.55); }
.footer-links { flex: 1; min-width: 160px; }
.footer-links h4 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.footer-links a {
  display: block;
  padding: 4px 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-links a.active { color: var(--accent); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap; gap: 12px;
}

@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-tabs { display: flex; }
  body { padding-bottom: 60px; }
  .site-header .brand-text { color: var(--text); }
  .hero { min-height: 480px; }
  .section { padding: 68px 0; }
  .step-item::before { display: none; }
  .stat-divider { border-right: none; }
  .stat-card { padding: 16px 0; }
}
@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .header-inner { padding: 0 18px; }
  .hero { min-height: 440px; }
  .hero-content { padding: 100px 0 60px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions { gap: 12px; }
  .btn { padding: 11px 24px; font-size: 0.95rem; }
  .section { padding: 56px 0; }
  .section-subtitle { margin-bottom: 32px; }
  .scenario-item { margin-bottom: 56px; }
  .related-card { padding: 28px 20px; }
  .footer-top { gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .blog-card .card-meta { flex-wrap: wrap; }
}