/* roulang page: index */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-light: #fffbeb;
  --bg-soft: #f1f5f9;
  --bg-white: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-soft);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 76px;
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
}

.brand-text {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.5px;
  color: var(--primary);
  white-space: nowrap;
}

.brand-text span {
  color: var(--accent);
}

.header-search {
  flex: 1;
  max-width: 420px;
  position: relative;
  margin: 0 auto;
}

.header-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 14px;
  pointer-events: none;
}

.header-search input {
  width: 100%;
  height: 46px;
  background: var(--bg-soft);
  border: 2px solid transparent;
  border-radius: 50px;
  padding: 0 20px 0 44px;
  font-size: 14px;
  color: var(--text-main);
  transition: var(--transition);
}

.header-search input:hover {
  background: var(--bg-soft);
  border-color: var(--border);
}

.header-search input:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: var(--transition);
}

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

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

.nav-link.active::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: var(--accent-light);
  color: var(--accent-hover);
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background-image: linear-gradient(120deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.82) 55%, rgba(245, 158, 11, 0.35) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.28) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 14px;
  margin-bottom: 28px;
}

.hero-badge i {
  color: var(--accent);
}

.hero-section h1 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.hero-section h1 .highlight {
  color: var(--accent);
}

.hero-section .hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 36px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 158, 11, 0.4);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== Section common ===== */
.section {
  padding: 90px 0;
}

.section-alt {
  background: var(--bg-white);
}

.section-head {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-hover);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 38px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== Features strip ===== */
.features-strip {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-light);
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 2px;
}

.feature-text p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== About / core ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-media img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-media:hover img {
  transform: scale(1.03);
}

.about-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.35), transparent 60%);
  pointer-events: none;
}

.about-content h2 {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 18px;
}

.about-content p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-points {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-point {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
}

.about-point i {
  color: var(--accent);
  font-size: 14px;
  margin-top: 5px;
}

.about-point span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
}

/* ===== Category cards ===== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.cat-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

.cat-card:hover .cat-card-media img {
  transform: scale(1.08);
}

.cat-card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.6), transparent 55%);
}

.cat-card-body {
  padding: 28px 24px 32px;
}

.cat-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-light);
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-top: -52px;
  position: relative;
  z-index: 2;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.cat-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}

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

.cat-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-hover);
  font-size: 14px;
  font-weight: 700;
}

.cat-card-link i {
  transition: transform 0.3s ease;
}

.cat-card-link:hover i {
  transform: translateX(4px);
}

/* ===== Latest content list ===== */
.latest-section {
  background: var(--bg-white);
}

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

.latest-card {
  display: flex;
  gap: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.latest-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(245, 158, 11, 0.3);
}

.latest-thumb {
  width: 140px;
  min-height: 120px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-soft);
}

.latest-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.latest-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.latest-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  background: var(--accent-light);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 50px;
}

.latest-info h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-info .latest-summary {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 12px;
  color: var(--text-light);
}

.latest-meta .read-more {
  color: var(--accent-hover);
  font-weight: 600;
  font-size: 13px;
}

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 20px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== Stats ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.stat-item {
  text-align: center;
  padding: 40px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-number {
  font-size: 48px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 1px;
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.step-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.step-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.step-arrow {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 16px;
  z-index: 2;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:has(.faq-toggle:checked) {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: var(--shadow-md);
}

.faq-toggle {
  display: none;
}

.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.faq-header:hover {
  color: var(--accent-hover);
}

.faq-header i {
  color: var(--text-light);
  font-size: 14px;
  transition: transform 0.3s ease;
}

.faq-toggle:checked + .faq-header i {
  transform: rotate(180deg);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-toggle:checked + .faq-header + .faq-body {
  max-height: 300px;
}

.faq-body p {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.9;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background-image: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.85)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}

.cta-content {
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 900;
  margin-bottom: 16px;
}

.cta-content h2 span {
  color: var(--accent);
}

.cta-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .brand-text {
  color: #fff;
  font-size: 22px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  padding: 0;
}

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

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .header-search {
    max-width: 260px;
  }

  .main-nav {
    gap: 0;
  }

  .nav-link {
    padding: 10px 14px;
    font-size: 14px;
  }

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

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

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

  .step-arrow {
    display: none;
  }

  .about-grid {
    gap: 40px;
  }

  .hero-section h1 {
    font-size: 42px;
  }
}

@media screen and (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .header-inner {
    gap: 12px;
    height: 68px;
  }

  .header-search {
    display: none;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    display: none;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 15px;
    border-radius: 12px;
    justify-content: flex-start;
  }

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

  .brand-text {
    font-size: 17px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 17px;
  }

  .hero-section {
    min-height: auto;
    padding: 60px 0;
  }

  .hero-section h1 {
    font-size: 32px;
  }

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

  .btn {
    padding: 13px 24px;
    font-size: 15px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head h2 {
    font-size: 28px;
  }

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

  .about-media img {
    height: 320px;
  }

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

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

  .latest-card {
    flex-direction: column;
  }

  .latest-thumb {
    width: 100%;
    height: 180px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stat-number {
    font-size: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .cta-content h2 {
    font-size: 28px;
  }
}

@media screen and (max-width: 520px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

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

  .about-points {
    grid-template-columns: 1fr;
  }

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

  .btn {
    justify-content: center;
  }

  .section-head p {
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #1e3a8a;
            --primary-dark: #172b6e;
            --primary-light: #3b5bdb;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --dark: #0f172a;
            --bg: #f8fafc;
            --bg-deep: #f1f5f9;
            --text: #1e293b;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
            --shadow-sm: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-accent: 0 10px 30px rgba(245, 158, 11, 0.18);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
        }

        .header-top {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }

        .brand-logo {
            font-size: 1.55rem;
            font-weight: 900;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
            line-height: 1.2;
        }

        .brand-logo span {
            color: var(--accent);
        }

        .header-search {
            flex: 1;
            max-width: 480px;
            position: relative;
            margin: 0 auto;
        }

        .header-search i {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .header-search input {
            width: 100%;
            padding: 11px 20px 11px 44px;
            border-radius: 50px;
            background: var(--bg-deep);
            border: 1px solid transparent;
            transition: all 0.25s ease;
            font-size: 0.925rem;
            color: var(--text);
        }

        .header-search input:focus {
            background: #fff;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12);
        }

        .header-search input::placeholder {
            color: #94a3b8;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg-deep);
            color: var(--text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: background 0.2s ease;
        }

        .nav-toggle:hover {
            background: var(--border);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 0 0 2px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 12px 12px 0 0;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--muted);
            transition: all 0.25s ease;
            border-bottom: 3px solid transparent;
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 0.95rem;
            opacity: 0.8;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 58, 138, 0.04);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
            background: rgba(30, 58, 138, 0.03);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 90px 0 100px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 58, 138, 0.72) 55%, rgba(245, 158, 11, 0.35) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.18);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: #fde68a;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }

        .banner-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .banner-content p {
            font-size: 1.1rem;
            opacity: 0.9;
            color: #e2e8f0;
            max-width: 600px;
            margin-bottom: 30px;
        }

        .banner-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--accent);
            color: #0f172a;
            box-shadow: var(--shadow-accent);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(245, 158, 11, 0.3);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-deep);
        }

        .section-head {
            text-align: center;
            max-width: 620px;
            margin: 0 auto 50px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== Category Overview ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 26px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .category-icon {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
        }

        .category-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .category-card p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .category-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease;
        }

        .category-more:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ===== Match Cards ===== */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .match-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }

        .match-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .match-cover {
            position: relative;
            height: 130px;
            overflow: hidden;
        }

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

        .match-card:hover .match-cover img {
            transform: scale(1.05);
        }

        .match-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.55), transparent);
        }

        .match-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(245, 158, 11, 0.92);
            color: #0f172a;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
        }

        .match-league {
            position: absolute;
            bottom: 10px;
            left: 14px;
            z-index: 2;
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
        }

        .match-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 12px;
        }

        .team-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .match-score {
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--primary);
            background: var(--bg-deep);
            padding: 4px 12px;
            border-radius: 8px;
            white-space: nowrap;
        }

        .match-time {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }

        .match-desc {
            font-size: 0.83rem;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .match-action {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: color 0.2s ease;
        }

        .match-action:hover {
            color: var(--accent);
        }

        /* ===== Stats ===== */
        .stats-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: #fff;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.92), rgba(30, 58, 138, 0.82));
        }

        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item {
            padding: 30px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            transition: background 0.3s ease;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: #e2e8f0;
            opacity: 0.85;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 24px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        .step-num {
            position: absolute;
            top: -18px;
            left: 24px;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            box-shadow: 0 6px 16px rgba(30, 58, 138, 0.3);
        }

        .step-icon {
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .step-item h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== News List ===== */
        .news-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius);
            padding: 22px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
            transition: all 0.3s ease;
            align-items: flex-start;
        }

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

        .news-cover {
            width: 130px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-content {
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
            font-size: 0.78rem;
            color: var(--muted);
        }

        .news-cat {
            display: inline-block;
            background: rgba(30, 58, 138, 0.08);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.75rem;
        }

        .news-content h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.45;
            transition: color 0.2s ease;
        }

        .news-content h3:hover {
            color: var(--primary);
        }

        .news-content p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

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

        .faq-question {
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 28px;
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            color: #fff;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.82);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .cta-content p {
            font-size: 1rem;
            color: #e2e8f0;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 65px 0 30px;
            border-top: 4px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 45px;
        }

        .brand-text {
            font-size: 1.5rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 360px;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color 0.2s ease, transform 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-links a i {
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-grid,
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }

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

            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0 15px;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                border-radius: 10px;
                border-bottom: none;
                padding: 12px 16px;
                justify-content: center;
            }

            .nav-link.active {
                background: rgba(30, 58, 138, 0.08);
                border-bottom: none;
            }

            .page-banner {
                padding: 70px 0 80px;
            }

            .banner-content h1 {
                font-size: 2.1rem;
            }

            .section {
                padding: 55px 0;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .category-grid,
            .match-grid,
            .stats-grid,
            .steps-grid {
                grid-template-columns: 1fr;
            }

            .page-banner {
                padding: 55px 0 65px;
            }

            .banner-content h1 {
                font-size: 1.7rem;
            }

            .banner-content p {
                font-size: 0.95rem;
            }

            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }

            .news-item {
                flex-direction: column;
                padding: 18px;
            }

            .news-cover {
                width: 100%;
                height: 140px;
            }

            .cta-content h2 {
                font-size: 1.7rem;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
    --primary: #0B1E3A;
    --primary-light: #1D3E6E;
    --primary-soft: #E8EDF6;
    --accent: #E8972E;
    --accent-dark: #C67A1A;
    --accent-soft: #FEF3E7;
    --bg: #F6F7FB;
    --bg-alt: #EEF1F7;
    --text: #1A2339;
    --text-weak: #64748B;
    --border: #E2E8F0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(11, 30, 58, 0.06);
    --shadow-md: 0 10px 30px rgba(11, 30, 58, 0.09);
    --shadow-lg: 0 20px 50px rgba(11, 30, 58, 0.14);
}

/* ===== 基础 Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

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

/* ===== 导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 12px rgba(11, 30, 58, 0.05);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    height: 72px;
}
.brand-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
    line-height: 1.2;
}
.brand-accent {
    color: var(--accent);
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    min-width: 0;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 15px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text);
    border-radius: 10px;
    transition: background 0.25s, color 0.25s, transform 0.2s;
    white-space: nowrap;
}
.nav-link i {
    font-size: 14px;
    color: var(--text-weak);
    transition: color 0.25s;
}
.nav-link:hover {
    background: var(--bg-alt);
    color: var(--primary);
    transform: translateY(-1px);
}
.nav-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.nav-link.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(11, 30, 58, 0.2);
}
.nav-link.active i {
    color: #FFD9A0;
}
.header-search {
    display: flex;
    align-items: center;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0 4px 0 16px;
    height: 42px;
    width: 250px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.header-search:focus-within {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(232, 151, 46, 0.14);
    width: 300px;
}
.header-search input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    color: var(--text);
}
.header-search input::placeholder {
    color: #9AA5B8;
}
.header-search button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: none;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.25s, transform 0.2s;
    flex-shrink: 0;
}
.header-search button:hover {
    background: var(--accent-dark);
    transform: scale(1.05);
}
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--text);
    cursor: pointer;
    transition: all 0.25s;
    flex-shrink: 0;
}
.menu-toggle:hover {
    background: var(--bg-alt);
}

/* ===== 文章 Hero ===== */
.article-hero {
    position: relative;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 64px 0 72px;
    color: #fff;
}
.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 20, 42, 0.94) 0%, rgba(11, 30, 58, 0.82) 50%, rgba(8, 20, 42, 0.72) 100%);
}
.article-hero-content {
    position: relative;
    z-index: 1;
    max-width: 880px;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.65);
}
.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.25s;
}
.breadcrumb a:hover {
    color: var(--accent);
}
.breadcrumb .separator {
    color: rgba(255, 255, 255, 0.4);
}
.article-title {
    font-size: clamp(26px, 3.5vw, 38px);
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 18px;
    letter-spacing: 0.3px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 999px;
}
.hero-date {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
}

/* ===== 文章主布局 ===== */
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    padding: 48px 24px 24px;
}

.article-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 40px;
}

.article-content {
    font-size: 16px;
    line-height: 1.85;
    color: #2D3A54;
}
.article-content p {
    margin-bottom: 20px;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 36px 0 16px;
    color: var(--primary);
    line-height: 1.4;
}
.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 28px 0 12px;
    color: var(--primary);
    line-height: 1.4;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 700;
    margin: 24px 0 10px;
    color: var(--primary);
}
.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}
.article-content ul,
.article-content ol {
    margin: 16px 0 24px;
    padding-left: 8px;
}
.article-content li {
    margin-bottom: 10px;
    padding-left: 8px;
}
.article-content li::marker {
    color: var(--accent);
}
.article-content a {
    color: var(--primary-light);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}
.article-content a:hover {
    color: var(--accent-dark);
}
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    padding: 16px 22px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    color: #6A4C1A;
    font-style: italic;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14.5px;
}
.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-content th {
    background: var(--primary-soft);
    font-weight: 600;
    color: var(--primary);
}
.article-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    transition: all 0.25s;
}
.tag i {
    color: var(--accent);
}
.tag:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent-dark);
}

/* ===== 内容未找到 ===== */
.article-empty {
    text-align: center;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 72px 32px;
}
.article-empty i {
    font-size: 48px;
    color: var(--accent);
    margin-bottom: 20px;
}
.article-empty h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}
.article-empty p {
    color: var(--text-weak);
    margin-bottom: 28px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(11, 30, 58, 0.18);
}
.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(11, 30, 58, 0.24);
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(232, 151, 46, 0.25);
}
.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232, 151, 46, 0.32);
}
.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.6);
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-2px);
}
.btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* ===== 侧边栏 ===== */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.sidebar-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 24px;
}
.sidebar-title {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-alt);
}
.sidebar-title i {
    color: var(--accent);
    font-size: 15px;
}
.sidebar-categories {
    list-style: none;
}
.sidebar-categories li {
    margin-bottom: 6px;
}
.sidebar-categories a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 12px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text);
    transition: all 0.25s;
    border: 1px solid transparent;
}
.sidebar-categories a i {
    width: 20px;
    text-align: center;
    color: var(--text-weak);
    transition: color 0.25s;
}
.sidebar-categories a:hover {
    background: var(--accent-soft);
    border-color: #F5D8B6;
    color: var(--accent-dark);
    transform: translateX(3px);
}
.sidebar-categories a:hover i {
    color: var(--accent);
}
.sidebar-news {
    list-style: none;
}
.sidebar-news li {
    padding: 12px 0;
    border-bottom: 1px solid var(--bg-alt);
}
.sidebar-news li:last-child {
    border-bottom: none;
}
.news-link {
    display: block;
    transition: all 0.25s;
}
.news-title {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.25s;
}
.news-link:hover .news-title {
    color: var(--accent-dark);
}
.news-date {
    font-size: 12px;
    color: var(--text-weak);
}
.sidebar-cta {
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius);
    padding: 28px;
    color: #fff;
    text-align: center;
    box-shadow: var(--shadow-md);
}
.sidebar-cta i {
    font-size: 32px;
    color: var(--accent);
    margin-bottom: 14px;
}
.sidebar-cta h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}
.sidebar-cta p {
    font-size: 13.5px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 20px;
}
.sidebar-cta .btn {
    font-size: 14px;
    padding: 10px 22px;
}

/* ===== 相关推荐 ===== */
.related-section {
    padding: 64px 0;
    background: var(--bg-alt);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
}
.section-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    position: relative;
    padding-left: 18px;
}
.section-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    background: var(--accent);
    border-radius: 4px;
}
.section-subtitle {
    color: var(--text-weak);
    font-size: 14px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: #D8E0F0;
}
.related-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.4s;
}
.related-card:hover .related-card-img {
    transform: scale(1.03);
}
.related-card-body {
    padding: 20px;
}
.badge {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid #F5D8B6;
}
.related-card-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 10px 0 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.25s;
}
.related-card:hover .related-card-body h3 {
    color: var(--accent-dark);
}
.related-card-body p {
    font-size: 13.5px;
    color: var(--text-weak);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 64px 0;
    background: var(--bg);
}
.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow 0.3s, border-color 0.3s;
}
.faq-item:hover {
    border-color: #D0DAEC;
}
.faq-item[open] {
    box-shadow: var(--shadow-sm);
    border-color: #E5C9A5;
}
.faq-item summary {
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    color: var(--text);
    transition: color 0.25s;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary:hover {
    color: var(--accent-dark);
}
.faq-item summary::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 14px;
    color: var(--accent);
    transition: transform 0.3s;
    flex-shrink: 0;
}
.faq-item[open] summary::after {
    transform: rotate(180deg);
}
.faq-item p {
    padding: 0 24px 18px;
    color: var(--text-weak);
    font-size: 14.5px;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    padding: 72px 0;
    background: linear-gradient(140deg, #0B1E3A 0%, #142D50 60%, #1D3E6E 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(232, 151, 46, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(29, 62, 110, 0.4) 0%, transparent 50%);
}
.cta-inner {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 14px;
    line-height: 1.4;
}
.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 30px;
    line-height: 1.8;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
    background: #071426;
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand-text {
    color: #fff;
    font-size: 20px;
    margin-bottom: 14px;
    display: inline-flex;
}
.footer-brand p {
    font-size: 13.5px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
    max-width: 340px;
}
.footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(232, 151, 46, 0.4);
    display: inline-block;
}
.footer-links {
    list-style: none;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.25s, transform 0.25s;
}
.footer-links a:hover {
    color: var(--accent);
    transform: translateX(3px);
}
.footer-links a i {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    transition: color 0.25s;
}
.footer-links a:hover i {
    color: var(--accent);
}
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .header-search {
        width: 200px;
    }
    .header-search:focus-within {
        width: 240px;
    }
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .sidebar-card {
        flex: 1 1 calc(33.333% - 16px);
        min-width: 220px;
    }
    .sidebar-cta {
        flex: 1 1 100%;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: auto;
        padding: 14px 0;
        flex-wrap: wrap;
        gap: 12px;
    }
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .main-nav {
        order: 4;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .main-nav.open {
        max-height: 320px;
    }
    .nav-link {
        padding: 12px 14px;
        border-radius: 10px;
        justify-content: flex-start;
    }
    .header-search {
        order: 2;
        flex: 1;
        width: auto;
        min-width: 0;
    }
    .header-search:focus-within {
        width: auto;
    }
    .brand-text {
        order: 1;
        font-size: 19px;
    }
    .article-hero {
        padding: 48px 0 56px;
    }
    .article-title {
        font-size: 24px;
    }
    .article-card {
        padding: 24px;
    }
    .article-layout {
        padding: 32px 16px 16px;
        gap: 24px;
    }
    .sidebar-card {
        flex: 1 1 100%;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 22px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .cta-section {
        padding: 56px 0;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .header-inner {
        gap: 8px;
    }
    .brand-text {
        font-size: 17px;
    }
    .header-search input {
        font-size: 13px;
    }
    .article-title {
        font-size: 20px;
    }
    .article-card {
        padding: 18px;
    }
    .related-grid {
        gap: 16px;
    }
    .btn {
        padding: 10px 20px;
    }
    .section-title {
        font-size: 20px;
    }
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* roulang page: category2 */
*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1c2b4a;
            --primary-light: #2b3f66;
            --primary-dark: #111b30;
            --accent: #e8b64c;
            --accent-hover: #d4a033;
            --accent-soft: #fdf3dd;
            --bg: #f5f6fa;
            --surface: #ffffff;
            --text: #1f2937;
            --text-muted: #6b7280;
            --border: #e5e7eb;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 10px 40px rgba(28, 43, 74, 0.08);
            --shadow-lg: 0 24px 64px rgba(28, 43, 74, 0.16);
            --shadow-accent: 0 8px 32px rgba(232, 182, 76, 0.35);
            --transition: all 0.3s ease;
            --container: 1240px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========= Header ========= */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            padding: 18px 0 10px;
        }
        .brand-text {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 1px;
            white-space: nowrap;
            color: var(--primary);
            line-height: 1.2;
        }
        .brand-text span {
            color: var(--accent);
        }
        .header-search {
            flex: 1;
            max-width: 560px;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1.5px solid var(--border);
            border-radius: 999px;
            padding: 10px 20px;
            gap: 12px;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(232, 182, 76, 0.15);
            background: #fff;
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .header-search input {
            flex: 1;
            font-size: 14px;
            color: var(--text);
            background: transparent;
        }
        .header-search input::placeholder {
            color: #9ca3af;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), #f0c96a);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 14px;
            white-space: nowrap;
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 40px rgba(232, 182, 76, 0.45);
            background: linear-gradient(135deg, var(--accent-hover), var(--accent));
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--accent-soft);
            color: var(--accent-hover);
        }

        /* Navigation */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 0 14px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            background: transparent;
        }
        .nav-link i {
            font-size: 14px;
            opacity: 0.85;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--bg);
        }
        .nav-link.active {
            color: var(--primary-dark);
            background: var(--accent-soft);
            font-weight: 600;
        }
        .nav-link.active i {
            color: var(--accent-hover);
        }

        /* ========= Hero ========= */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(17, 27, 48, 0.92), rgba(28, 43, 74, 0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 96px 0 110px;
            text-align: center;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg);
            border-radius: 50% 50% 0 0/100% 100% 0 0;
            opacity: 0.9;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin-bottom: 22px;
            letter-spacing: 1px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            font-size: 12px;
            opacity: 0.6;
        }
        .page-hero h1 {
            font-size: 52px;
            color: #fff;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 2px;
            margin-bottom: 16px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero .hero-sub {
            color: rgba(255, 255, 255, 0.85);
            font-size: 18px;
            max-width: 760px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-badges {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-badge {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            color: #fff;
            font-size: 13px;
            padding: 8px 18px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-badge i {
            color: var(--accent);
        }

        /* ========= Section base ========= */
        .section {
            padding: 80px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-weight: 600;
            font-size: 13px;
            padding: 6px 18px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
        }

        /* ========= Category cards ========= */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }
        .category-card .thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .thumb img {
            transform: scale(1.05);
        }
        .category-card .thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(17, 27, 48, 0.65));
        }
        .category-card .thumb-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .category-card .body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .category-card .body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .category-card .more {
            color: var(--accent-hover);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s ease;
        }
        .category-card .more:hover {
            gap: 12px;
        }

        /* ========= Promo list ========= */
        .promo-section {
            background: var(--surface);
        }
        .promo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .promo-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            display: flex;
            gap: 0;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .promo-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .promo-card .promo-img {
            width: 200px;
            min-height: 220px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }
        .promo-card .promo-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .promo-card .promo-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 60%, rgba(17, 27, 48, 0.2));
        }
        .promo-card .promo-body {
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
        }
        .promo-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .promo-card h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .promo-card .subtitle {
            font-size: 13px;
            color: var(--accent-hover);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .promo-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .promo-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .promo-card .meta .date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 999px;
            border: 1.5px solid var(--accent);
            color: var(--accent-hover);
            font-weight: 600;
            font-size: 13px;
            transition: var(--transition);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: var(--shadow-accent);
        }

        /* ========= Stats ========= */
        .stats-section {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 90px 0;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
        }
        .stats-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stat-item .num {
            font-size: 48px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            font-family: "Courier New", monospace;
        }
        .stat-item .label {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            margin-top: 8px;
            font-weight: 500;
        }
        .stat-item .desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            margin-top: 4px;
        }

        /* ========= Steps ========= */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .step-item {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 40px 28px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.03);
        }
        .step-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
        }
        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #f0c96a);
            color: var(--primary-dark);
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-accent);
        }
        .step-item h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========= FAQ ========= */
        .faq-section {
            background: var(--surface);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: var(--transition);
        }
        .faq-item:hover,
        .faq-item:focus-within {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
        }
        .faq-question i {
            color: var(--accent);
            transition: transform 0.3s ease;
            font-size: 14px;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* ========= CTA ========= */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(17, 27, 48, 0.9), rgba(28, 43, 74, 0.82)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.08;
            top: -120px;
            right: -100px;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .cta-section h2 span {
            color: var(--accent);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta {
            background: linear-gradient(135deg, var(--accent), #f0c96a);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 999px;
            font-size: 16px;
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 18px 50px rgba(232, 182, 76, 0.5);
        }
        .btn-ghost {
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            padding: 14px 36px;
            border-radius: 999px;
            font-size: 16px;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }

        /* ========= Footer ========= */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand-text {
            font-size: 28px;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a i {
            font-size: 12px;
            color: var(--accent);
            opacity: 0.8;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========= Responsive ========= */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .promo-card .promo-img {
                width: 180px;
            }
            .stats-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-top {
                gap: 12px;
                padding-top: 14px;
            }
            .brand-text {
                font-size: 22px;
            }
            .header-search {
                max-width: none;
                padding: 8px 14px;
            }
            .header-search input {
                width: 100%;
            }
            .header-actions .btn-accent {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                background: var(--surface);
                padding: 12px 0 20px;
                border-top: 1px solid var(--border);
                width: 100%;
                align-items: stretch;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 18px;
                border-radius: 12px;
                font-size: 15px;
            }
            .page-hero {
                padding: 70px 0 80px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .page-hero .hero-sub {
                font-size: 16px;
            }
            .section {
                padding: 60px 0;
            }
            .section-head h2 {
                font-size: 30px;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .promo-card {
                flex-direction: column;
            }
            .promo-card .promo-img {
                width: 100%;
                min-height: 180px;
            }
            .promo-card .promo-img img {
                height: 180px;
            }
            .stats-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .stat-item .num {
                font-size: 36px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .cta-section h2 {
                font-size: 32px;
            }
            .cta-section {
                padding: 70px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                flex: 1 1 100%;
                margin-top: 6px;
            }
            .brand-text {
                font-size: 20px;
            }
            .page-hero h1 {
                font-size: 30px;
                letter-spacing: 1px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 6px 12px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .category-card .thumb {
                height: 170px;
            }
            .promo-card .promo-body {
                padding: 20px;
            }
            .stat-item .num {
                font-size: 30px;
            }
            .stat-item .label {
                font-size: 13px;
            }
            .footer-brand p {
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1D4ED8;
            --secondary: #0EA5E9;
            --accent: #F59E0B;
            --darkbg: #0F172A;
            --lightbg: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--lightbg);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        button,
        input {
            font-family: inherit;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(14, 165, 233, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* 顶部信息条 */
        .top-info-bar {
            background: linear-gradient(135deg, var(--darkbg) 0%, #1E3A5F 100%);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            padding: 0.35rem 0;
        }

        .top-info-bar .container-custom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .top-info-bar i {
            color: var(--accent);
            margin-right: 0.35rem;
        }

        /* 搜索主导导航 */
        .main-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            padding-top: 0.9rem;
            padding-bottom: 0.9rem;
            flex-wrap: wrap;
        }

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

        .brand-logo .brand-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(29, 78, 216, 0.25);
        }

        .brand-text {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--darkbg);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .brand-text span {
            color: var(--primary);
        }

        .brand-subtitle {
            font-size: 0.7rem;
            color: var(--text-muted);
            letter-spacing: 1px;
            font-weight: 400;
            margin-top: 2px;
        }

        /* 搜索框 */
        .header-search {
            flex: 1;
            max-width: 480px;
            min-width: 220px;
            position: relative;
        }

        .header-search input {
            width: 100%;
            border: 2px solid var(--border-color);
            border-radius: 9999px;
            padding: 0.7rem 3rem 0.7rem 1.4rem;
            font-size: 0.9rem;
            background: #f1f5f9;
            transition: all 0.3s ease;
            color: var(--text-main);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
        }

        .header-search .search-btn {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: #fff;
            border: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .header-search .search-btn:hover {
            background: var(--secondary);
            transform: translateY(-50%) scale(1.05);
        }

        /* 导航链接 */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            margin-top: 0.8rem;
            padding-top: 0.6rem;
            border-top: 1px solid #f1f5f9;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-link {
            padding: 0.55rem 1.15rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .nav-link i {
            font-size: 0.9rem;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(29, 78, 216, 0.06);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(29, 78, 216, 0.25);
        }

        /* Hero 横幅 */
        .inner-hero {
            background: linear-gradient(135deg, var(--darkbg) 0%, #1E3A5F 50%, var(--primary) 100%);
            padding: 2.5rem 0 3rem;
            position: relative;
            overflow: hidden;
        }

        .inner-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .inner-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.18) 0%, transparent 70%);
            border-radius: 50%;
        }

        .inner-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .inner-hero h1 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 0.8rem;
        }

        .inner-hero h1 span {
            color: var(--accent);
        }

        .inner-hero p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            font-size: 1rem;
            margin-bottom: 1.2rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            margin-bottom: 1rem;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .breadcrumb {
            margin-top: 1rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb span {
            margin: 0 0.4rem;
        }

        /* 分类标签页 */
        .category-tabs {
            margin-top: -1.5rem;
            position: relative;
            z-index: 5;
        }

        .category-tabs .tabs-wrap {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
            border: 1px solid var(--border-color);
        }

        .tab-item {
            padding: 0.5rem 1.2rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            background: var(--lightbg);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .tab-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .tab-item.active-tab {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(29, 78, 216, 0.2);
        }

        /* 通用板块 */
        .section-block {
            padding: 4rem 0;
        }

        .section-title-wrap {
            margin-bottom: 2.5rem;
        }

        .section-overline {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .section-overline::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
            border-radius: 2px;
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--darkbg);
            line-height: 1.35;
            margin-bottom: 0.6rem;
        }

        .section-desc {
            color: var(--text-muted);
            max-width: 620px;
            font-size: 0.95rem;
        }

        /* 新手步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
            margin-top: 2rem;
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .step-card:hover::before {
            opacity: 1;
        }

        .step-num {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 1.2rem;
            box-shadow: 0 6px 14px rgba(29, 78, 216, 0.25);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--darkbg);
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 内容卡片网格 */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .content-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: all 0.4s ease;
        }

        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .content-card .cover-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .content-card .card-body {
            padding: 1.4rem 1.5rem 1.6rem;
        }

        .content-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: rgba(29, 78, 216, 0.08);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 9999px;
            margin-bottom: 0.6rem;
        }

        .content-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--darkbg);
            line-height: 1.5;
            transition: color 0.3s ease;
        }

        .content-card h3:hover {
            color: var(--primary);
        }

        .content-card .card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0.8rem;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.75rem;
            color: #94a3b8;
            border-top: 1px solid #f1f5f9;
            padding-top: 0.8rem;
        }

        .card-meta i {
            margin-right: 0.25rem;
        }

        /* FAQ */
        .faq-section {
            background: var(--darkbg);
            color: #fff;
            padding: 4.5rem 0;
            position: relative;
            overflow: hidden;
        }

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

        .faq-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .faq-list {
            max-width: 800px;
            margin: 2.5rem auto 0;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            margin-bottom: 0.8rem;
            overflow: hidden;
            backdrop-filter: blur(6px);
        }

        .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: rgba(255, 255, 255, 0.95);
            transition: all 0.3s ease;
            border: none;
            background: transparent;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 1.5rem 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-item.open .faq-answer {
            padding: 0 1.5rem 1.2rem;
            max-height: 300px;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
        }

        /* 数据块 */
        .stats-section {
            padding: 3.5rem 0;
            background: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: var(--radius);
            background: var(--lightbg);
            border: 1px solid var(--border-color);
        }

        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }

        /* CTA 区块 */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.85);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
        }

        .btn-light:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }

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

        .btn-primary:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
        }

        /* 页脚 */
        .site-footer {
            background: var(--darkbg);
            color: rgba(255, 255, 255, 0.8);
            padding: 3.5rem 0 0;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer .brand-text {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
        }

        .site-footer .brand-text span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.8rem;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 0.55rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-links a i {
            width: 16px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--accent);
        }

        .footer-bottom {
            padding: 1.2rem 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 0;
        }

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

        /* 时间线 */
        .timeline-wrap {
            margin-top: 2rem;
            position: relative;
            padding-left: 2rem;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            width: 2px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 1.8rem;
            padding-left: 1.5rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.15);
        }

        .timeline-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

            .inner-hero h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding-top: 0.7rem;
                padding-bottom: 0.7rem;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }

            .brand-text {
                font-size: 1.2rem;
            }

            .nav-link {
                padding: 0.45rem 0.9rem;
                font-size: 0.82rem;
            }

            .top-info-bar .container-custom {
                justify-content: center;
                text-align: center;
            }

            .inner-hero {
                padding: 2rem 0;
            }

            .inner-hero h1 {
                font-size: 1.5rem;
            }

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

            .category-tabs .tabs-wrap {
                border-radius: 12px;
                padding: 0.8rem 1rem;
                gap: 0.5rem;
            }

            .tab-item {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

            .cta-content p {
                margin-bottom: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }

            .main-nav {
                gap: 0.3rem;
                padding-bottom: 0.2rem;
            }

            .nav-link {
                padding: 0.4rem 0.7rem;
                font-size: 0.75rem;
                border-radius: 8px;
            }

            .nav-link i {
                font-size: 0.75rem;
            }

            .inner-hero h1 {
                font-size: 1.3rem;
            }

            .brand-subtitle {
                display: none;
            }
        }

        /* 文章卡片悬浮 */
        .article-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: all 0.4s ease;
            overflow: hidden;
        }

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

        .article-card .article-body {
            padding: 1.2rem;
        }

        .article-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
            line-height: 1.5;
        }

        .article-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 帮助分类页特定 */
        .help-category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
            margin-top: 2rem;
        }

        .help-category-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.5rem 1.2rem;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all 0.4s ease;
            box-shadow: var(--shadow);
        }

        .help-category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .help-category-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
            background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(14, 165, 233, 0.08));
            color: var(--primary);
        }

        .help-category-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--darkbg);
            margin-bottom: 0.3rem;
        }

        .help-category-card p {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        @media (max-width: 520px) {
            .help-category-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 内容高亮纹理 */
        .texture-bg {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .overlay-dark {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.98));
        }

        /* 两张卡片之间的分隔 */
        .divider-wave {
            width: 100%;
            height: 60px;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 60"><path d="M0,30 C240,60 480,0 720,20 C960,40 1200,60 1440,30 L1440,60 L0,60 Z" fill="%230F172A"/></svg>') no-repeat center bottom;
            background-size: cover;
        }

        .scroll-top-btn {
            position: fixed;
            bottom: 80px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(29, 78, 216, 0.3);
            border: none;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 99;
        }

        .scroll-top-btn.show {
            opacity: 1;
            visibility: visible;
        }

        .scroll-top-btn:hover {
            background: var(--accent);
            transform: translateY(-3px);
        }