/* roulang page: index */
:root {
  --primary: #F5B24B;
  --primary-dark: #D9922E;
  --primary-light: #FDE2B6;
  --secondary: #2D3748;
  --dark: #1A202C;
  --dark-2: #2D3748;
  --gray-600: #4A5568;
  --gray-400: #A0AEC0;
  --gray-200: #EDF2F7;
  --gray-100: #F7FAFC;
  --white: #FFFFFF;
  --bg-light: #F8F9FC;
  --border-radius: 16px;
  --border-radius-sm: 10px;
  --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --box-shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  --font-size-3xl: 36px;
  --font-size-4xl: 48px;
  --container-width: 72rem;
  --section-spacing: 5.5rem;
  --section-spacing-sm: 3rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.75;
  color: var(--secondary);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary-dark);
  text-decoration: none;
  transition: var(--transition-base);
}

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

ul, ol {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Top Bar */
.top-bar {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-info span {
  margin-right: 1.5rem;
}

.top-bar-info i {
  margin-right: 0.375rem;
  color: var(--primary);
}

.top-bar-links a {
  color: rgba(255, 255, 255, 0.7);
  margin-left: 1.25rem;
  transition: color 0.3s;
}

.top-bar-links a:hover {
  color: var(--primary);
}

/* Header & Nav */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--white);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(245, 178, 75, 0.35);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: 0.01em;
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-menu > li {
  position: relative;
}

.nav-menu > li > a {
  display: flex;
  align-items: center;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  border-radius: 0.75rem;
  transition: var(--transition-base);
}

.nav-menu > li > a i {
  margin-right: 0.375rem;
  font-size: 0.875rem;
  color: var(--gray-400);
  transition: var(--transition-base);
}

.nav-menu > li > a:hover {
  color: var(--primary-dark);
  background: var(--gray-100);
}

.nav-menu > li > a:hover i {
  color: var(--primary);
}

.nav-menu > li > a.active {
  background: linear-gradient(135deg, rgba(245, 178, 75, 0.12) 0%, rgba(245, 178, 75, 0.06) 100%);
  color: var(--primary-dark);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(245, 178, 75, 0.2);
}

.nav-menu > li > a.active i {
  color: var(--primary-dark);
}

.nav-cta {
  margin-left: 0.75rem;
}

.btn-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  border: none;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 0.8125rem;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: 0 4px 16px rgba(245, 178, 75, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-header i {
  font-size: 0.8125rem;
}

.btn-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 178, 75, 0.45);
  color: var(--white);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  transition: var(--transition-base);
}

.nav-toggle:hover {
  background: var(--gray-100);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 1rem;
  animation: slideDown 0.3s ease;
}

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

.mobile-menu a {
  display: flex;
  align-items: center;
  padding: 0.875rem 0.75rem;
  font-weight: 500;
  color: var(--gray-600);
  border-radius: 0.75rem;
  gap: 0.625rem;
}

.mobile-menu a i {
  width: 20px;
  color: var(--gray-400);
}

.mobile-menu a.active {
  background: rgba(245, 178, 75, 0.1);
  color: var(--primary-dark);
  font-weight: 600;
}

.mobile-menu .btn-header {
  margin-top: 0.75rem;
  width: 100%;
  justify-content: center;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(to bottom, rgba(26, 32, 44, 0.92) 0%, rgba(26, 32, 44, 0.75) 50%, rgba(26, 32, 44, 0.95) 100%), url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  padding: 6.5rem 0 7rem;
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 178, 75, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 178, 75, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 178, 75, 0.15);
  border: 1px solid rgba(245, 178, 75, 0.3);
  color: var(--primary);
  padding: 0.375rem 1rem;
  border-radius: 2rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 1.75rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-badge i {
  font-size: 0.75rem;
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
  background: linear-gradient(120deg, #FFFFFF 0%, #FDE2B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .accent {
  color: var(--primary);
  -webkit-text-fill-color: var(--primary);
}

.hero-desc {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 680px;
  margin: 0 auto 2.25rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.875rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 0.875rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(245, 178, 75, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 178, 75, 0.5);
  color: var(--white);
}

.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: var(--white);
}

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

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3.5rem;
  margin-top: 3.5rem;
  position: relative;
  z-index: 2;
}

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

.hero-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.25rem;
}

/* Section Styles */
.section {
  padding: var(--section-spacing) 0;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: rgba(245, 178, 75, 0.1);
  color: var(--primary-dark);
  padding: 0.25rem 1rem;
  border-radius: 2rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.8;
}

/* Features Grid */
.features-grid-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 2rem 1.75rem;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(245, 178, 75, 0.12) 0%, rgba(245, 178, 75, 0.06) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-dark);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(245, 178, 75, 0.2);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.625rem;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.category-card {
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--box-shadow);
  transition: var(--transition-base);
  background: var(--white);
}

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

.category-cover {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
}

.category-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 32, 44, 0.75) 0%, transparent 60%);
}

.category-cover-content {
  position: relative;
  z-index: 2;
  color: var(--white);
}

.category-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.125rem 0.625rem;
  border-radius: 1rem;
  margin-bottom: 0.5rem;
}

.category-cover h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.category-cover p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.8);
}

.category-content {
  padding: 1.25rem;
}

.category-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--gray-400);
}

.category-meta span {
  display: flex;
  align-items: center;
  gap: 0.3125rem;
}

.category-meta i {
  color: var(--primary);
}

/* Horizontal Cards */
.horizontal-card-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

.horizontal-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition-base);
}

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

.horizontal-card-img {
  flex: 0 0 45%;
  background-size: cover;
  background-position: center;
  min-height: 220px;
  position: relative;
}

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

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(245, 178, 75, 0.1);
  padding: 0.1875rem 0.625rem;
  border-radius: 0.5rem;
  width: fit-content;
  margin-bottom: 0.75rem;
}

.horizontal-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3.1rem;
}

.horizontal-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.875rem;
}

.card-time {
  font-size: 0.8125rem;
  color: var(--gray-400);
  display: flex;
  align-items: center;
  gap: 0.3125rem;
}

.card-more {
  font-size: 0.8125rem;
  color: var(--primary-dark);
  font-weight: 600;
}

.card-more i {
  font-size: 0.75rem;
  transition: transform 0.3s;
}

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

/* Data Stats Section */
.data-stats-section {
  position: relative;
  background: linear-gradient(to bottom, rgba(26, 32, 44, 0.9) 0%, rgba(26, 32, 44, 0.95) 100%), url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  color: var(--white);
  padding: 5rem 0;
}

.data-stats-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.data-stat-item {
  text-align: center;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.data-stat-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(245, 178, 75, 0.4);
}

.data-stat-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.data-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
}

.data-stat-number span {
  font-size: 1.25rem;
  margin-left: 0.25rem;
  color: var(--primary);
}

.data-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.375rem;
}

/* Steps */
.steps-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step-counter;
}

.step-item {
  text-align: center;
  padding: 2rem 1.25rem;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 800;
  margin: 0 auto 1.25rem;
  box-shadow: 0 8px 24px rgba(245, 178, 75, 0.3);
  position: relative;
  z-index: 2;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 42px;
  left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 2px;
  background: var(--gray-200);
  z-index: 1;
}

.step-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.step-item p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* FAQ */
.faq-wrap {
  max-width: 42rem;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition-base);
  background: var(--white);
}

.faq-item:hover {
  border-color: rgba(245, 178, 75, 0.4);
  box-shadow: var(--box-shadow);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--dark);
  font-size: 0.9375rem;
  transition: var(--transition-base);
}

.faq-question i {
  color: var(--primary);
  transition: transform 0.3s ease;
  font-size: 0.875rem;
}

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

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}

/* CTA Section */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 4.5rem 0;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
  opacity: 0.1;
}

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

.cta-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 1rem;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  font-size: 1.0625rem;
}

.btn-light {
  background: var(--white);
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  color: var(--primary-dark);
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand .logo-text {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  display: block;
}

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

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  transition: var(--transition-base);
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--dark);
  transform: translateY(-3px);
}

.footer-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  transition: var(--transition-base);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 0.25rem;
}

.footer-contact li {
  display: flex;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact i {
  color: var(--primary);
  margin-top: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

/* News List */
.news-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition-base);
  border-radius: 0.75rem;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item:hover {
  background: var(--gray-100);
}

.news-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 0.75rem;
  background: var(--gray-100);
  border-radius: 0.875rem;
  flex-shrink: 0;
}

.news-date .day {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1;
}

.news-date .month {
  font-size: 0.75rem;
  color: var(--gray-600);
  margin-top: 0.25rem;
}

.news-info {
  flex: 1;
}

.news-info h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.375rem;
  transition: var(--transition-base);
}

.news-item:hover .news-info h4 {
  color: var(--primary-dark);
}

.news-info p {
  font-size: 0.8125rem;
  color: var(--gray-600);
  font-style: italic;
}

.news-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(245, 178, 75, 0.1);
  padding: 0.1875rem 0.5rem;
  border-radius: 0.375rem;
  flex-shrink: 0;
}

/* Responsive */
@media screen and (max-width: 1024px) {
  .features-grid-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .horizontal-card-wrap {
    grid-template-columns: 1fr;
  }
  .data-stats-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-item:not(:last-child)::after {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero-stats {
    gap: 2rem;
    flex-wrap: wrap;
  }
}

@media screen and (max-width: 768px) {
  .top-bar {
    display: none;
  }
  .nav-menu {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .hero {
    padding: 4.5rem 0 5rem;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero-desc {
    font-size: 1rem;
  }
  .hero-stats {
    gap: 1.5rem;
    flex-direction: column;
    align-items: center;
    margin-top: 2.5rem;
  }
  .section {
    padding: 4rem 0;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .features-grid-wrap {
    grid-template-columns: 1fr;
  }
  .data-stats-wrap {
    grid-template-columns: 1fr;
  }
  .steps-wrap {
    grid-template-columns: 1fr;
  }
  .horizontal-card {
    flex-direction: column;
  }
  .horizontal-card-img {
    min-height: 180px;
  }
  .horizontal-card-body {
    padding: 1.25rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .news-item {
    flex-direction: row;
    gap: 0.75rem;
    padding: 1rem;
  }
  .news-date {
    min-width: 56px;
    padding: 0.5rem;
  }
  .news-date .day {
    font-size: 1.125rem;
  }
  .news-tag {
    font-size: 0.6875rem;
  }
}

@media screen and (max-width: 520px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .footer-contact li {
    font-size: 0.8125rem;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .cta-content h2 {
    font-size: 1.5rem;
  }
  .btn-header {
    font-size: 0.8125rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1025px) and (max-width: 1280px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Print */
@media print {
  .nav-toggle, .nav-cta, .mobile-menu, .footer-social {
    display: none !important;
  }
}

/* roulang page: article */
:root {
  --primary: #C9A227;
  --primary-dark: #A9851F;
  --primary-light: #E8D48B;
  --secondary: #1E2A4A;
  --secondary-light: #2B3A63;
  --dark-bg: #101A33;
  --bg-light: #F7F5F1;
  --bg-white: #FFFFFF;
  --text-main: #1E2A4A;
  --text-body: #4A5568;
  --text-muted: #8892A6;
  --border: #E8E4DC;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(30,42,74,0.06);
  --shadow-md: 0 8px 30px rgba(30,42,74,0.09);
  --shadow-lg: 0 16px 50px rgba(30,42,74,0.14);
  --transition: all 0.3s ease;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-light);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
button { font-family: inherit; border: none; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.site-header {
  background: var(--bg-white);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo-text { font-size: 28px; font-weight: 800; color: var(--secondary); letter-spacing: -0.5px; display: flex; align-items: center; gap: 2px; }
.logo-text span { color: var(--primary); font-size: 18px; font-weight: 900; background: var(--secondary); padding: 2px 7px; border-radius: 6px; margin-left: 2px; line-height: 1.2; }
.nav-menu { display: flex; list-style: none; gap: 8px; margin: 0; }
.nav-menu li { margin: 0; }
.nav-menu a { display: flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 50px; font-size: 15px; font-weight: 600; color: var(--text-body); background: transparent; transition: var(--transition); }
.nav-menu a i { color: var(--primary); font-size: 14px; }
.nav-menu a:hover { background: rgba(201,162,39,0.1); color: var(--primary-dark); transform: translateY(-1px); }
.nav-menu a.active { background: var(--secondary); color: #fff; }
.nav-menu a.active i { color: var(--primary-light); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: var(--secondary); font-weight: 700; font-size: 14px; padding: 10px 22px; border-radius: 50px; box-shadow: 0 4px 14px rgba(201,162,39,0.35); transition: var(--transition); }
.nav-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,162,39,0.45); }
.nav-toggle { display: none; background: none; font-size: 24px; color: var(--secondary); padding: 8px; border-radius: 8px; }
.nav-toggle:hover { background: rgba(30,42,74,0.06); }

.article-hero {
  background: var(--secondary);
  background-image: linear-gradient(135deg, rgba(16,26,51,0.92), rgba(30,42,74,0.85)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 70px 0 100px;
  position: relative;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; font-size: 14px; color: rgba(255,255,255,0.7); }
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { opacity: 0.5; }
.article-hero h1 { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.3; max-width: 820px; margin-bottom: 20px; letter-spacing: -0.5px; }
.article-meta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.article-meta-row .meta-item { display: flex; align-items: center; gap: 6px; color: rgba(255,255,255,0.75); font-size: 14px; background: rgba(255,255,255,0.1); padding: 6px 14px; border-radius: 50px; backdrop-filter: blur(4px); }
.article-meta-row .meta-item i { color: var(--primary-light); }

.article-section { padding: 60px 0 80px; margin-top: -40px; position: relative; z-index: 5; }
.article-layout { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.article-main { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 44px; }
.article-content { font-size: 16px; line-height: 1.85; color: var(--text-body); }
.article-content h2 { font-size: 26px; font-weight: 700; color: var(--secondary); margin: 32px 0 14px; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 20px; font-weight: 600; color: var(--secondary); margin: 24px 0 10px; }
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { margin: 16px 0 20px 22px; }
.article-content li { margin-bottom: 8px; }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-sm); }
.article-content blockquote { border-left: 4px solid var(--primary); background: rgba(201,162,39,0.06); padding: 16px 20px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 20px 0; color: var(--text-body); }
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content table th { background: var(--bg-light); font-weight: 600; }
.article-tags { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags .tag-label { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.article-tags .tag { display: inline-flex; align-items: center; gap: 4px; background: var(--bg-light); color: var(--secondary); font-size: 13px; font-weight: 500; padding: 4px 12px; border-radius: 50px; border: 1px solid var(--border); transition: var(--transition); }
.article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.article-share { display: flex; align-items: center; gap: 10px; margin-top: 22px; }
.article-share .share-label { font-size: 14px; color: var(--text-muted); margin-right: 4px; }
.article-share .share-label i { color: var(--primary); margin-right: 4px; }
.article-share .share-btn { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--bg-light); color: var(--text-body); border: 1px solid var(--border); transition: var(--transition); }
.article-share .share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

.article-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 100px; }
.sidebar-card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 28px; }
.sidebar-card .card-title { font-size: 18px; font-weight: 700; color: var(--secondary); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.sidebar-card .card-title i { color: var(--primary); }
.sidebar-list { list-style: none; }
.sidebar-list li { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a { display: flex; justify-content: space-between; align-items: center; color: var(--text-body); font-weight: 500; }
.sidebar-list a:hover { color: var(--primary); }
.sidebar-list a span { font-size: 12px; color: var(--text-muted); font-weight: 400; background: var(--bg-light); padding: 2px 8px; border-radius: 50px; }
.sidebar-cta { background: linear-gradient(135deg, var(--secondary), var(--dark-bg)); border-radius: var(--radius-lg); padding: 30px; color: #fff; text-align: center; }
.sidebar-cta h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.sidebar-cta p { font-size: 14px; color: rgba(255,255,255,0.75); margin-bottom: 20px; }
.sidebar-cta a { background: var(--primary); color: var(--secondary); font-weight: 700; padding: 10px 24px; border-radius: 50px; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; transition: var(--transition); }
.sidebar-cta a:hover { background: var(--primary-light); color: var(--secondary); transform: translateY(-2px); }

.related-section { background: var(--bg-white); padding: 70px 0; border-top: 1px solid var(--border); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 36px; }
.section-title { font-size: 30px; font-weight: 800; color: var(--secondary); letter-spacing: -0.5px; }
.section-title span { color: var(--primary); }
.section-head p { font-size: 14px; color: var(--text-muted); margin-top: 4px; }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; border: 2px solid var(--secondary); color: var(--secondary); font-weight: 600; font-size: 14px; padding: 8px 20px; border-radius: 50px; transition: var(--transition); }
.btn-outline:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.related-card { background: var(--bg-light); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.related-card .card-img { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-img .tag-badge { position: absolute; top: 12px; left: 12px; background: var(--primary); color: var(--secondary); font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 50px; }
.related-card .card-body { padding: 20px; }
.related-card .card-body h3 { font-size: 16px; font-weight: 600; color: var(--secondary); line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body h3 a { color: inherit; }
.related-card .card-body h3 a:hover { color: var(--primary); }
.related-card .card-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
.related-card .card-meta span i { margin-right: 4px; }

.cta-section { background: var(--secondary); background-image: linear-gradient(135deg, rgba(16,26,51,0.92), rgba(43,58,99,0.88)), url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; padding: 80px 0; text-align: center; }
.cta-section h2 { font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-gold { background: var(--primary); color: var(--secondary); font-weight: 700; padding: 14px 36px; border-radius: 50px; font-size: 16px; display: inline-flex; align-items: center; gap: 8px; box-shadow: 0 4px 20px rgba(201,162,39,0.4); transition: var(--transition); }
.btn-gold:hover { background: var(--primary-light); color: var(--secondary); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(201,162,39,0.5); }
.btn-ghost { background: transparent; color: #fff; font-weight: 600; padding: 14px 36px; border-radius: 50px; font-size: 16px; border: 2px solid rgba(255,255,255,0.3); display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-light); transform: translateY(-2px); }

.not-found { text-align: center; padding: 60px 0; }
.not-found .icon { font-size: 64px; color: var(--primary); margin-bottom: 20px; }
.not-found h1 { font-size: 32px; color: var(--secondary); margin-bottom: 12px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }
.not-found .btn-back { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: var(--secondary); font-weight: 700; padding: 12px 30px; border-radius: 50px; transition: var(--transition); }
.not-found .btn-back:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }

.site-footer { background: var(--dark-bg); color: rgba(255,255,255,0.72); padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.footer-brand .logo-text { color: #fff; font-size: 26px; margin-bottom: 14px; display: inline-block; }
.footer-brand .logo-text span { background: var(--primary); color: var(--secondary); font-size: 17px; padding: 2px 8px; border-radius: 6px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 18px; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); font-size: 15px; transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: var(--secondary); transform: translateY(-3px); }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact { list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-contact i { width: 24px; color: var(--primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; text-align: center; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }

@media screen and (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr 300px; gap: 24px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-hero h1 { font-size: 32px; }
}
@media screen and (max-width: 768px) {
  .header-inner { height: 64px; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-menu { position: fixed; top: 64px; left: 0; right: 0; background: var(--bg-white); flex-direction: column; gap: 0; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); transform: translateY(-120%); transition: transform 0.3s ease; z-index: 99; }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu li { width: 100%; }
  .nav-menu a { padding: 14px 18px; border-radius: 10px; font-size: 15px; }
  .article-hero { padding: 50px 0 70px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .article-main { padding: 28px; }
  .article-hero h1 { font-size: 28px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-title { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section h2 { font-size: 28px; }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-hero h1 { font-size: 24px; }
  .article-meta-row { gap: 8px; }
  .article-meta-row .meta-item { font-size: 12px; padding: 4px 10px; }
  .related-grid { grid-template-columns: 1fr; }
  .article-main { padding: 20px; }
  .article-content { font-size: 15px; }
  .cta-buttons { flex-direction: column; }
  .btn-gold, .btn-ghost { width: 100%; justify-content: center; }
}

/* roulang page: category1 */
:root {
      --primary: #6c4cf1;
      --primary-dark: #5030c9;
      --primary-light: #8a70ff;
      --accent: #f0a500;
      --accent-light: #ffc247;
      --bg: #f5f6fb;
      --surface: #ffffff;
      --text: #171a2b;
      --text-weak: #5f647a;
      --text-light: #8a90a6;
      --border: #e6e8f0;
      --radius: 18px;
      --radius-sm: 12px;
      --shadow: 0 10px 30px rgba(22, 28, 65, .08);
      --shadow-hover: 0 20px 44px rgba(22, 28, 65, .14);
      --space: 100px;
      --space-md: 72px;
      --space-sm: 48px;
      --header-h: 76px;
      --transition: all .25s ease;
    }

    * {
      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;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input, select, textarea {
      font: inherit;
      color: inherit;
    }

    button {
      cursor: pointer;
      border: none;
      background: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 28px;
    }

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

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

    .section-head {
      max-width: 760px;
      margin-bottom: 48px;
    }

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

    .section-title {
      font-size: clamp(1.8rem, 3.2vw, 2.6rem);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -.5px;
      color: var(--text);
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 1.08rem;
      color: var(--text-weak);
      line-height: 1.8;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 50px;
      font-size: .8rem;
      font-weight: 700;
      background: rgba(108, 76, 241, .1);
      color: var(--primary);
      border: 1px solid rgba(108, 76, 241, .16);
      margin-bottom: 18px;
    }

    .badge .fa {
      font-size: .75rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 28px;
      border-radius: 60px;
      font-weight: 700;
      font-size: .95rem;
      line-height: 1.2;
      border: 2px solid transparent;
      transition: var(--transition);
      outline: none;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 24px rgba(108, 76, 241, .28);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(108, 76, 241, .36);
    }

    .btn-primary:focus-visible {
      outline: 3px solid rgba(108, 76, 241, .4);
      outline-offset: 2px;
    }

    .btn-accent {
      background: var(--accent);
      color: #1b1e2f;
      box-shadow: 0 8px 24px rgba(240, 165, 0, .25);
    }

    .btn-accent:hover {
      background: var(--accent-light);
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(240, 165, 0, .32);
    }

    .btn-outline {
      border-color: rgba(255, 255, 255, .7);
      color: #fff;
      background: transparent;
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, .12);
      border-color: #fff;
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: var(--primary);
      box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
    }

    .btn-light:hover {
      background: #f4f4fa;
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(0, 0, 0, .16);
    }

    .btn-lg {
      padding: 16px 40px;
      font-size: 1.05rem;
    }

    /* Header */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, .86);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(230, 232, 240, .8);
      height: var(--header-h);
      display: flex;
      align-items: center;
      transition: var(--transition);
    }

    .site-header.is-scrolled {
      background: rgba(255, 255, 255, .96);
      box-shadow: 0 6px 24px rgba(22, 28, 65, .08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      width: 100%;
      flex-wrap: nowrap;
    }

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

    .logo-text {
      font-size: 1.55rem;
      font-weight: 900;
      letter-spacing: -.5px;
      color: var(--text);
      line-height: 1;
      white-space: nowrap;
    }

    .logo-text span {
      color: var(--primary);
      font-weight: 900;
    }

    .header-inner nav {
      margin-left: auto;
    }

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

    .nav-menu a {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 10px 16px;
      border-radius: 40px;
      font-weight: 600;
      font-size: .95rem;
      color: var(--text-weak);
      background: transparent;
      transition: var(--transition);
      border: 1px solid transparent;
    }

    .nav-menu a i {
      font-size: .9rem;
      color: var(--primary-light);
      transition: var(--transition);
    }

    .nav-menu a:hover {
      color: var(--text);
      background: rgba(108, 76, 241, .08);
      border-color: rgba(108, 76, 241, .12);
    }

    .nav-menu a.active {
      color: var(--primary);
      background: rgba(108, 76, 241, .12);
      border-color: rgba(108, 76, 241, .18);
      font-weight: 700;
    }

    .nav-menu a.active i {
      color: var(--primary);
    }

    .nav-cta {
      margin-left: 12px;
      padding: 11px 24px;
      flex-shrink: 0;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(108, 76, 241, .1);
      color: var(--primary);
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex-shrink: 0;
      transition: var(--transition);
    }

    .nav-toggle:hover {
      background: rgba(108, 76, 241, .18);
    }

    .nav-toggle:focus-visible {
      outline: 3px solid rgba(108, 76, 241, .35);
    }

    /* Page Hero */
    .page-hero {
      position: relative;
      padding: calc(var(--header-h) + 84px) 0 88px;
      background: linear-gradient(120deg, #171a2b 0%, #20243f 40%, #2b2550 100%);
      overflow: hidden;
      isolation: isolate;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      opacity: .4;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: linear-gradient(110deg, rgba(17, 19, 40, .86) 0%, rgba(24, 23, 54, .72) 50%, rgba(58, 35, 117, .55) 100%);
    }

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

    .hero-crumbs {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: .85rem;
      color: rgba(255, 255, 255, .7);
      margin-bottom: 22px;
    }

    .hero-crumbs a {
      color: rgba(255, 255, 255, .8);
      transition: var(--transition);
    }

    .hero-crumbs a:hover {
      color: #fff;
    }

    .hero-crumbs .sep {
      opacity: .5;
      font-size: .7rem;
    }

    .page-hero h1 {
      font-size: clamp(2.3rem, 4.6vw, 3.6rem);
      font-weight: 900;
      line-height: 1.2;
      color: #fff;
      letter-spacing: -1px;
      margin-bottom: 18px;
    }

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

    .page-hero .hero-lead {
      font-size: 1.15rem;
      color: rgba(255, 255, 255, .85);
      max-width: 660px;
      line-height: 1.85;
      margin-bottom: 34px;
    }

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

    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 28px;
      margin-top: 48px;
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, .16);
    }

    .hero-stats .stat {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .hero-stats .stat b {
      font-size: 1.5rem;
      font-weight: 800;
      color: #fff;
    }

    .hero-stats .stat small {
      font-size: .8rem;
      color: rgba(255, 255, 255, .65);
    }

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

    .step-card {
      position: relative;
      background: var(--surface);
      border-radius: var(--radius);
      padding: 36px 28px 32px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: var(--transition);
      overflow: hidden;
    }

    .step-card::before {
      content: "";
      position: absolute;
      top: -40px;
      right: -40px;
      width: 100px;
      height: 100px;
      border-radius: 50%;
      background: rgba(108, 76, 241, .06);
      transition: var(--transition);
    }

    .step-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(108, 76, 241, .2);
    }

    .step-card:hover::before {
      transform: scale(1.4);
      background: rgba(108, 76, 241, .1);
    }

    .step-icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 22px;
      box-shadow: 0 8px 20px rgba(108, 76, 241, .28);
    }

    .step-num {
      position: absolute;
      top: 22px;
      right: 24px;
      font-size: 2.6rem;
      font-weight: 900;
      color: rgba(108, 76, 241, .08);
      line-height: 1;
    }

    .step-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: .92rem;
      color: var(--text-weak);
      line-height: 1.75;
    }

    /* Feature Cards */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .feature-card {
      background: var(--surface);
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(108, 76, 241, .2);
    }

    .feature-card .cover {
      height: 190px;
      overflow: hidden;
      background: #eef0f6;
      position: relative;
    }

    .feature-card .cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }

    .feature-card:hover .cover img {
      transform: scale(1.06);
    }

    .feature-card .cover-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(255, 255, 255, .9);
      backdrop-filter: blur(8px);
      color: var(--text);
      font-size: .75rem;
      font-weight: 800;
      padding: 5px 14px;
      border-radius: 40px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .feature-card .body {
      padding: 28px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      flex: 1;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
    }

    .feature-card p {
      color: var(--text-weak);
      font-size: .94rem;
      line-height: 1.75;
      flex: 1;
    }

    .feature-card .more-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-weight: 700;
      font-size: .9rem;
      margin-top: 6px;
    }

    .feature-card .more-link:hover {
      gap: 13px;
      color: var(--primary-dark);
    }

    /* Task / Checklist */
    .task-section {
      background: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .task-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 56px;
      align-items: center;
    }

    .task-image {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      position: relative;
    }

    .task-image img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .task-image::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(20, 22, 40, .35), transparent 60%);
    }

    .check-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .check-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 20px 22px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .check-item:hover {
      border-color: rgba(108, 76, 241, .25);
      background: #fff;
      box-shadow: var(--shadow);
      transform: translateX(4px);
    }

    .check-item .check-icon {
      flex-shrink: 0;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: rgba(108, 76, 241, .12);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: .85rem;
    }

    .check-item .check-body {
      flex: 1;
    }

    .check-item .check-body h4 {
      font-size: 1rem;
      font-weight: 750;
      margin-bottom: 3px;
    }

    .check-item .check-body p {
      font-size: .88rem;
      color: var(--text-weak);
    }

    .check-item .check-status {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: .76rem;
      font-weight: 700;
      color: var(--text-light);
      background: #fff;
      padding: 4px 12px;
      border-radius: 40px;
      border: 1px solid var(--border);
      white-space: nowrap;
    }

    /* Tutorial list */
    .tutorial-wrap {
      background: linear-gradient(180deg, var(--bg) 0%, #f0eff8 100%);
    }

    .tutorial-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .tutorial-item {
      display: flex;
      align-items: center;
      gap: 22px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 22px 26px;
      transition: var(--transition);
      box-shadow: 0 4px 14px rgba(22, 28, 65, .04);
    }

    .tutorial-item:hover {
      border-color: rgba(108, 76, 241, .22);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .tutorial-num {
      font-size: 1.9rem;
      font-weight: 900;
      line-height: 1;
      color: rgba(108, 76, 241, .25);
      min-width: 52px;
      text-align: center;
    }

    .tutorial-item .t-content {
      flex: 1;
    }

    .tutorial-item .t-content h4 {
      font-size: 1.08rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .tutorial-item .t-content p {
      font-size: .88rem;
      color: var(--text-weak);
      max-width: 640px;
    }

    .tutorial-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      background: rgba(108, 76, 241, .08);
      color: var(--primary);
      font-size: .75rem;
      font-weight: 700;
      border-radius: 40px;
      white-space: nowrap;
    }

    /* FAQ */
    .faq-section {
      background: var(--surface);
    }

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

    .faq-item {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 28px 30px;
      transition: var(--transition);
    }

    .faq-item:hover {
      box-shadow: var(--shadow);
      border-color: rgba(108, 76, 241, .18);
      transform: translateY(-3px);
      background: #fff;
    }

    .faq-item h4 {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .faq-item h4 i {
      color: var(--primary);
      font-size: .9rem;
      margin-top: 4px;
    }

    .faq-item p {
      color: var(--text-weak);
      font-size: .92rem;
      line-height: 1.75;
      padding-left: 28px;
    }

    /* CTA */
    .cta-section {
      position: relative;
      background: #1b1e2f;
      overflow: hidden;
      padding: 100px 0;
      isolation: isolate;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      opacity: .45;
    }

    .cta-section::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: linear-gradient(115deg, rgba(18, 20, 42, .92) 20%, rgba(68, 42, 138, .75) 80%);
    }

    .cta-inner {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.9rem, 3.4vw, 2.8rem);
      font-weight: 900;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, .82);
      font-size: 1.1rem;
      margin-bottom: 34px;
      line-height: 1.8;
    }

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

    /* Footer */
    .site-footer {
      background: #161827;
      color: rgba(255, 255, 255, .72);
      padding: 70px 0 0;
      font-size: .92rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 52px;
      padding-bottom: 50px;
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .footer-brand .logo-text {
      color: #fff;
      font-size: 1.7rem;
      margin-bottom: 18px;
      display: block;
    }

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

    .footer-brand p {
      color: rgba(255, 255, 255, .6);
      max-width: 280px;
      line-height: 1.8;
      margin-bottom: 22px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: rgba(255, 255, 255, .08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, .75);
      transition: var(--transition);
      font-size: .95rem;
    }

    .footer-social a:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-3px);
    }

    .footer-title {
      color: #fff;
      font-weight: 800;
      font-size: 1.05rem;
      margin-bottom: 20px;
      letter-spacing: .5px;
    }

    .footer-links,
    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .6);
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 5px;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255, 255, 255, .6);
    }

    .footer-contact li i {
      color: var(--primary-light);
      width: 18px;
      text-align: center;
    }

    .footer-bottom {
      padding: 24px 0;
      text-align: center;
      color: rgba(255, 255, 255, .45);
      font-size: .82rem;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      :root {
        --space: 80px;
        --space-md: 58px;
      }

      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 22px;
      }

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

      .task-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .task-image img {
        height: 320px;
      }

      .footer-grid {
        gap: 36px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --space: 64px;
        --space-sm: 38px;
      }

      .header-inner {
        gap: 12px;
      }

      .nav-toggle {
        display: flex;
        order: 3;
      }

      .header-inner nav {
        order: 4;
        width: 100%;
        margin-left: 0;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 16px 40px rgba(22, 28, 65, .1);
        padding: 16px 20px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: var(--transition);
        border-radius: 0 0 20px 20px;
        z-index: 999;
      }

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

      .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
      }

      .nav-menu a {
        padding: 14px 18px;
        justify-content: flex-start;
        font-size: 1rem;
      }

      .nav-cta {
        order: 2;
        margin-left: auto;
        padding: 10px 18px;
        font-size: .85rem;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 18px;
      }

      .feature-grid {
        grid-template-columns: 1fr;
        gap: 18px;
      }

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

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

      .hero-stats {
        gap: 20px;
      }

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

      .page-hero {
        padding-top: calc(var(--header-h) + 60px);
        padding-bottom: 60px;
      }
    }

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

      :root {
        --space: 56px;
        --space-md: 42px;
      }

      .section-title {
        font-size: 1.65rem;
      }

      .page-hero h1 {
        font-size: 2rem;
      }

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

      .step-card {
        padding: 28px 20px;
      }

      .feature-card .body {
        padding: 20px;
      }

      .tutorial-item {
        flex-wrap: wrap;
        gap: 12px;
        padding: 18px;
      }

      .tutorial-num {
        min-width: 36px;
        font-size: 1.5rem;
      }

      .tutorial-item .t-content h4 {
        font-size: .98rem;
      }

      .check-item {
        flex-wrap: wrap;
      }

      .check-status {
        margin-left: 50px;
      }

      .faq-item {
        padding: 22px 20px;
      }

      .faq-item h4 {
        flex-direction: column;
        gap: 4px;
      }

      .faq-item p {
        padding-left: 0;
      }

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

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

/* roulang page: category2 */
:root {
            --primary: #6C3AF4;
            --primary-dark: #4C1DB8;
            --primary-light: #8B5CF6;
            --accent: #00D4AA;
            --accent-warm: #FF7A59;
            --ink: #1E1B2E;
            --ink-soft: #5A5370;
            --ink-faint: #8A849D;
            --bg: #F7F5FC;
            --bg-alt: #EEEAFA;
            --surface: #FFFFFF;
            --line: #E4DFF0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(108, 58, 244, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 58, 244, 0.12);
            --shadow-lg: 0 16px 48px rgba(76, 29, 184, 0.18);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 96px;
            --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        ul, ol { list-style: none; }
        button { font-family: var(--font-main); cursor: pointer; }
        input, select, textarea { font-family: var(--font-main); }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-3); }
        .text-center { text-align: center; }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--space-3);
            gap: var(--space-3);
        }

        .logo-text {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--ink);
            letter-spacing: 1px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .logo-text span {
            color: var(--primary);
            font-size: 1.2rem;
        }

        .logo-text .logo-badge {
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 20px;
            margin-left: 8px;
            letter-spacing: 0.5px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }

        .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 40px;
            font-weight: 500;
            color: var(--ink-soft);
            font-size: 0.95rem;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-menu li a i {
            font-size: 0.9rem;
            color: var(--primary);
            opacity: 0.7;
            transition: var(--transition);
        }

        .nav-menu li a:hover {
            background: var(--bg-alt);
            color: var(--primary-dark);
            border-color: var(--line);
        }

        .nav-menu li a:hover i {
            opacity: 1;
            transform: scale(1.1);
        }

        .nav-menu li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 58, 244, 0.3);
            border-color: var(--primary);
        }

        .nav-menu li a.active i {
            color: #fff;
            opacity: 1;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: var(--space-2);
        }

        .header-search {
            position: relative;
        }

        .header-search input {
            border: 1px solid var(--line);
            border-radius: 30px;
            padding: 9px 16px 9px 40px;
            font-size: 0.9rem;
            background: var(--bg);
            width: 220px;
            transition: var(--transition);
            outline: none;
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: var(--surface);
            box-shadow: 0 0 0 3px rgba(108, 58, 244, 0.12);
            width: 260px;
        }

        .header-search i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-faint);
            font-size: 0.85rem;
        }

        .btn-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--ink);
            padding: 8px;
            border-radius: 8px;
        }

        /* 页面通用 Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(76, 29, 184, 0.92) 0%, rgba(108, 58, 244, 0.85) 50%, rgba(0, 212, 170, 0.75) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 100px 0 90px;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.12) 0%, transparent 50%);
            pointer-events: none;
        }

        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-3);
            text-align: center;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.8px;
            margin-bottom: 24px;
        }

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

        .page-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.2);
            letter-spacing: -1px;
        }

        .page-hero p.lead {
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto 36px;
            color: rgba(255,255,255,0.9);
            font-weight: 300;
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--ink);
            box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
        }

        .btn-primary:hover {
            background: #00BFA0;
            color: var(--ink);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 212, 170, 0.4);
        }

        .btn-outline-light {
            background: rgba(255,255,255,0.1);
            color: #fff;
            border: 1px solid rgba(255,255,255,0.5);
            backdrop-filter: blur(10px);
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.2);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-dark:hover {
            background: #2E2950;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 27, 46, 0.25);
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 14px 0;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--ink-faint);
        }

        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--ink-faint);
        }

        .breadcrumb a {
            color: var(--ink-soft);
        }

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

        /* 板块通用 */
        .section {
            padding: var(--space-5) 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto var(--space-4);
        }

        .section-head .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-alt);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-head .section-kicker i {
            font-size: 0.8rem;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.3;
            color: var(--ink);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

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

        /* 能力卡片 */
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .capability-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .capability-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(108, 58, 244, 0.3);
        }

        .capability-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink);
        }

        .capability-card p {
            color: var(--ink-soft);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .capability-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-alt);
            color: var(--primary-dark);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        /* 产品卡片 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .product-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .product-cover {
            position: relative;
            aspect-ratio: 4 / 3;
            overflow: hidden;
        }

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

        .product-card:hover .product-cover img {
            transform: scale(1.06);
        }

        .product-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(30,27,46,0.65) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
            opacity: 0;
            transition: var(--transition);
        }

        .product-card:hover .cover-overlay {
            opacity: 1;
        }

        .cover-overlay .hot-badge {
            background: var(--accent-warm);
            color: #fff;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .product-info {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .product-info h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .product-info p {
            font-size: 0.85rem;
            color: var(--ink-soft);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 14px;
        }

        .product-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--line);
        }

        .product-meta .meta-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--accent);
            font-weight: 500;
        }

        .product-meta .meta-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .product-meta .meta-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* 数据洞察列表 */
        .insight-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

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

        .insight-card .insight-index {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary-light);
            opacity: 0.4;
            line-height: 1;
            min-width: 40px;
        }

        .insight-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .insight-card p {
            font-size: 0.82rem;
            color: var(--ink-soft);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .insight-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.75rem;
            color: var(--ink-faint);
        }

        .insight-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .insight-meta i {
            font-size: 0.7rem;
            color: var(--primary);
        }

        /* 流程板块 */
        .process-wrap {
            position: relative;
            background: linear-gradient(135deg, var(--ink) 0%, #3A3460 100%);
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #fff;
            overflow: hidden;
        }

        .process-wrap::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(108,58,244,0.4) 0%, transparent 70%);
            border-radius: 50%;
        }

        .process-wrap::before {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -60px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(0,212,170,0.25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
            margin-top: 20px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step:not(:last-child)::after {
            content: '\f061';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -26px;
            top: 50%;
            color: var(--accent);
            font-size: 0.9rem;
            opacity: 0.6;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            margin: 0 auto 16px;
            box-shadow: 0 8px 24px rgba(108,58,244,0.4);
        }

        .process-step h3 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.82rem;
            color: rgba(255,255,255,0.7);
            line-height: 1.6;
        }

        /* 排行板块 */
        .rank-wrap {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }

        .rank-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--line);
        }

        .rank-header h3 {
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .rank-header h3 i {
            color: var(--accent-warm);
        }

        .rank-header .rank-period {
            font-size: 0.8rem;
            color: var(--ink-faint);
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 20px;
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            gap: 16px;
        }

        .rank-item:hover {
            background: var(--bg);
        }

        .rank-num {
            font-size: 1.1rem;
            font-weight: 900;
            color: var(--ink-faint);
            min-width: 32px;
            text-align: center;
        }

        .rank-item:nth-child(1) .rank-num,
        .rank-item:nth-child(2) .rank-num,
        .rank-item:nth-child(3) .rank-num {
            color: var(--accent-warm);
            font-size: 1.3rem;
        }

        .rank-item .rank-name {
            flex: 1;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--ink);
        }

        .rank-item .rank-bar {
            flex: 2;
            height: 6px;
            background: var(--bg-alt);
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }

        .rank-bar-fill {
            height: 100%;
            border-radius: 6px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
            transition: width 0.8s ease;
        }

        .rank-item .rank-val {
            font-size: 0.8rem;
            color: var(--ink-soft);
            font-weight: 600;
            min-width: 48px;
            text-align: right;
        }

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

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

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

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
            color: var(--ink);
            transition: var(--transition);
            background: var(--surface);
        }

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

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item[open] summary {
            color: var(--primary);
            border-bottom: 1px solid var(--line);
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--ink-soft);
            font-size: 0.9rem;
            line-height: 1.8;
        }

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

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #7B3FFF 50%, var(--primary-dark) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .cta-wrap {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            color: #fff;
        }

        .cta-wrap h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-wrap p {
            color: rgba(255,255,255,0.8);
            margin-bottom: 32px;
            font-size: 1rem;
            line-height: 1.8;
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }

        .btn-light:hover {
            background: var(--bg);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* 页脚 */
        .site-footer {
            background: var(--ink);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .footer-brand .logo-text {
            color: #fff;
            margin-bottom: 12px;
        }

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

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            margin: 12px 0 20px;
            max-width: 300px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .footer-links a::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.7rem;
            color: var(--primary-light);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.6);
        }

        .footer-contact li i {
            color: var(--primary-light);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.35);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* 移动端导航 */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(30,27,46,0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
        }

        .mobile-menu-wrap {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            height: 100vh;
            background: var(--surface);
            z-index: 1001;
            flex-direction: column;
            padding: 24px;
            transition: right 0.3s ease;
            box-shadow: var(--shadow-lg);
        }

        .mobile-menu-wrap.active {
            right: 0;
        }

        .mobile-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 32px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--line);
        }

        .mobile-menu-header .logo-text {
            font-size: 1.2rem;
        }

        .mobile-close {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--ink);
            padding: 4px;
        }

        .mobile-menu-wrap .nav-menu {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }

        .mobile-menu-wrap .nav-menu li a {
            padding: 14px 16px;
            border-radius: var(--radius-sm);
        }

        .mobile-menu-wrap .nav-menu li a.active {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu-cta {
            margin-top: 24px;
        }

        .mobile-menu-cta .btn {
            width: 100%;
            justify-content: center;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .capability-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

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

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

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .process-step:not(:last-child)::after {
                display: none;
            }

            .header-search input {
                width: 160px;
            }

            .header-search input:focus {
                width: 180px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-menu {
                display: none;
            }

            .header-cta .header-search {
                display: none;
            }

            .btn-mobile-toggle {
                display: block;
            }

            .page-hero {
                padding: 64px 0 56px;
                background-attachment: scroll;
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

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

            .section {
                padding: 48px 0;
            }

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

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

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

            .insight-list {
                grid-template-columns: 1fr;
            }

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

            .process-wrap {
                padding: 32px 24px;
            }

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

            .rank-item {
                flex-wrap: wrap;
            }

            .rank-item .rank-bar {
                flex: 0 0 100%;
                order: 4;
            }

            .rank-item .rank-name {
                flex: 1;
            }

            .breadcrumb {
                display: none;
            }
        }

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

            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }

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

            .capability-card {
                padding: 24px 20px;
            }

            .cta-wrap h2 {
                font-size: 1.5rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }

            .footer-bottom {
                font-size: 0.72rem;
            }
        }

        /* 动画 */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

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