/* roulang page: index */
:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #eef2ff;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --text: #334155;
  --text-light: #64748b;
  --bg: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
  --radius-lg: 24px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

*, *::before, *::after {
  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: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
}

.header-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  max-width: var(--container);
  margin: 0 auto;
}

.brand {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.brand .brand-badge {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.header-search {
  flex: 0 1 360px;
  margin-left: auto;
}

.header-search form {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 16px;
  transition: var(--transition);
}

.header-search form:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.header-search input {
  flex: 1;
  background: transparent;
  border: none;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}

.header-search input::placeholder {
  color: var(--text-light);
}

.header-search button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.header-search button:hover {
  background: var(--primary-dark);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--dark);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-left: auto;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.main-nav {
  background: var(--white);
  border-top: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 24px;
  max-width: var(--container);
  margin: 0 auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark-2);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav-link i {
  font-size: 14px;
  color: var(--text-light);
  transition: var(--transition);
}

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

.nav-link:hover i {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

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

.nav-hot {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-light);
  white-space: nowrap;
  padding: 14px 0;
}

.nav-hot .dot {
  opacity: 0.5;
}

.nav-hot a {
  color: var(--text-light);
  font-weight: 500;
}

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

.mobile-nav {
  display: none;
}

.hero {
  position: relative;
  padding: 120px 0 170px;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.42;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.66) 45%, rgba(30, 27, 75, 0.3) 100%);
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

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

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  color: #fff;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 36px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  text-decoration: none;
}

.btn i {
  font-size: 14px;
  transition: transform 0.3s ease;
}

.btn:hover i {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
  color: var(--dark);
}

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

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

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

.section {
  padding: 88px 0;
}

.stats-section {
  position: relative;
  z-index: 5;
  margin-top: -80px;
  padding: 0 24px 24px;
}

.stats-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0.7;
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 56px rgba(15, 23, 42, 0.16);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin: 0 auto 16px;
}

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -1px;
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 6px;
  font-weight: 500;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-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);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-light), #e0e7ff);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.75;
}

.categories-section {
  background: linear-gradient(180deg, var(--bg) 0%, #f1f5f9 100%);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  height: 380px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

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

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.85) 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 36px 32px;
  z-index: 2;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  backdrop-filter: blur(4px);
}

.category-overlay h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.category-overlay p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 20px;
  line-height: 1.6;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}

.category-card:hover .category-link {
  gap: 14px;
  color: #fff;
}

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

.news-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  transition: var(--transition);
}

.news-item:hover {
  background: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateX(6px);
}

.news-item-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}

.news-cat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
}

.news-date {
  font-size: 13px;
  color: var(--text-light);
}

.news-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.5;
  transition: var(--transition);
}

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

.news-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}

.news-more i {
  font-size: 12px;
  transition: transform 0.3s ease;
}

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

.news-empty {
  text-align: center;
  padding: 60px 30px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
  color: var(--text-light);
  font-size: 16px;
}

.process-section {
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.25) 0%, transparent 70%);
}

.process-section .section-tag {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
}

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

.process-section .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.process-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
}

.step-num {
  position: absolute;
  top: 20px;
  right: 22px;
  font-size: 42px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.12);
  line-height: 1;
}

.step-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.process-step:hover .step-icon {
  background: var(--accent);
  color: var(--dark);
}

.process-step h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.hot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.hot-card-img {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

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

.hot-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.35) 100%);
}

.hot-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  background: rgba(15, 23, 42, 0.75);
  color: #fff;
  backdrop-filter: blur(4px);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

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

.hot-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition);
}

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

.hot-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hot-card-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-light);
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.hot-card-foot i {
  font-size: 12px;
}

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

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item.active {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  background: transparent;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.faq-question i {
  margin-left: auto;
  color: var(--text-light);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 240px;
  padding: 0 24px 22px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

.cta-section {
  padding: 0 24px 88px;
}

.cta-box {
  max-width: var(--container);
  margin: 0 auto;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 60%, #4338ca 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -30px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}

.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 2;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 72px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  display: block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  padding: 5px 0;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col p {
  font-size: 14px;
  padding: 5px 0;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-bottom i {
  color: var(--accent);
  font-size: 12px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.4);
  outline-offset: 2px;
}

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

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

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

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

  .footer-main {
    grid-template-columns: 1.2fr 1fr 1fr;
  }

  .nav-hot {
    display: none;
  }

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

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

  .header-top {
    padding: 12px 16px;
  }

  .brand {
    font-size: 20px;
  }

  .brand .brand-badge {
    font-size: 10px;
    padding: 2px 8px;
  }

  .header-search {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 20px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
  }

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

  .mobile-nav .mobile-search {
    margin-bottom: 16px;
  }

  .mobile-nav .mobile-search form {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    overflow: hidden;
    transition: var(--transition);
  }

  .mobile-nav .mobile-search form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  }

  .mobile-nav .mobile-search input {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    font-size: 14px;
  }

  .mobile-nav .mobile-search button {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
  }

  .mobile-link {
    display: block;
    padding: 13px 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--dark-2);
    border-bottom: 1px solid var(--border);
  }

  .mobile-link:last-of-type {
    border-bottom: none;
  }

  .mobile-link.active,
  .mobile-link:hover {
    color: var(--primary);
    padding-left: 12px;
  }

  .mobile-hot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 16px 8px 4px;
    font-size: 13px;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    margin-top: 8px;
  }

  .mobile-hot a {
    color: var(--text-light);
    font-weight: 500;
  }

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

  .hero {
    padding: 88px 0 150px;
  }

  .hero h1 {
    font-size: 32px;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-meta {
    gap: 14px;
    margin-top: 32px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 28px;
  }

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

  .category-card {
    height: 300px;
  }

  .news-item {
    padding: 20px;
  }

  .cta-section {
    padding: 0 16px 64px;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .cta-box h2 {
    font-size: 26px;
  }

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

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

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-card {
    padding: 22px 14px;
  }

  .stat-number {
    font-size: 26px;
  }

  .stat-icon {
    width: 42px;
    height: 42px;
    font-size: 16px;
    margin-bottom: 10px;
  }

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

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

  .section-title {
    font-size: 24px;
  }

  .category-overlay h3 {
    font-size: 22px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #6c5ce7;
  --primary-dark: #5546d0;
  --accent: #f5a623;
  --accent-light: #ffbe4d;
  --bg: #f7f8fc;
  --bg-soft: #eef0f8;
  --bg-deep: #141726;
  --bg-card: #ffffff;
  --text: #1e2233;
  --text-weak: #6b7181;
  --border: #e4e7f0;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(108, 92, 231, .08);
  --shadow-hover: 0 18px 44px rgba(108, 92, 231, .18);
  --space-lg: 88px;
  --space-md: 60px;
  --space-sm: 40px;
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color .2s ease;
}
img {
  max-width: 100%;
  display: block;
}
button, input {
  font-family: inherit;
  border: none;
  outline: none;
}
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}
.section {
  padding: var(--space-lg) 0;
}
.section-soft {
  background: var(--bg-soft);
  padding: 34px 0;
}
.section-deep {
  background: var(--bg-deep);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
}
.section-head p {
  color: var(--text-weak);
  margin-top: 6px;
  font-size: 15px;
}
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.section-more:hover {
  border-color: var(--primary);
  gap: 12px;
}
.section-more i {
  font-size: 13px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 8px 28px rgba(20, 23, 38, .08);
}
.header-top {
  background: var(--bg-deep);
  color: var(--white);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--white);
}
.brand-logo i {
  color: var(--accent);
  font-size: 24px;
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, .12);
  border-radius: 999px;
  padding: 4px 6px 4px 18px;
  width: 320px;
  transition: background .2s ease;
}
.header-search:focus-within {
  background: rgba(255, 255, 255, .2);
}
.header-search input {
  background: transparent;
  border: none;
  color: var(--white);
  font-size: 14px;
  width: 100%;
  padding: 8px 10px 8px 0;
}
.header-search input::placeholder {
  color: rgba(255, 255, 255, .55);
}
.header-search button {
  background: var(--accent);
  color: var(--bg-deep);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  transition: background .2s ease, transform .2s ease;
}
.header-search button:hover {
  background: var(--accent-light);
  transform: scale(1.05);
}
.main-nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 0;
  padding-bottom: 0;
  min-height: 56px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 18px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: color .2s, border-color .2s, background .2s;
}
.nav-link i {
  font-size: 14px;
  color: var(--text-weak);
  transition: color .2s;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover i {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.nav-link.active i {
  color: var(--primary);
}
.nav-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  font-size: 13px;
  color: var(--text-weak);
  white-space: nowrap;
}
.nav-hot > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
}
.nav-hot a {
  font-weight: 500;
  color: var(--text-weak);
}
.nav-hot a:hover {
  color: var(--primary);
}
.nav-hot .dot {
  color: var(--border);
  font-weight: 700;
}
.category-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 88px 0 76px;
  color: var(--white);
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(20, 23, 38, .92) 0%, rgba(20, 23, 38, .68) 55%, rgba(108, 92, 231, .45) 100%);
}
.category-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 7px 18px;
  font-size: 13px;
  backdrop-filter: blur(6px);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, .75);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, .5);
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 166, 35, .16);
  border: 1px solid rgba(245, 166, 35, .45);
  color: var(--accent-light);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-content h1 {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, .78);
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all .25s ease;
  border: 2px solid transparent;
  line-height: 1.2;
}
.btn:focus-visible {
  outline: 3px solid rgba(108, 92, 231, .45);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(108, 92, 231, .35);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(108, 92, 231, .45);
}
.btn-outline-light {
  border-color: rgba(255, 255, 255, .65);
  color: var(--white);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .14);
  border-color: var(--white);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .15);
}
.btn-light:hover {
  background: var(--accent-light);
  color: var(--bg-deep);
  transform: translateY(-2px);
}
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-weak);
  transition: all .2s ease;
  cursor: pointer;
}
.chip:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(108, 92, 231, .1);
}
.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(108, 92, 231, .3);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .28s ease, box-shadow .28s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.news-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.06);
}
.news-date {
  position: absolute;
  left: 16px;
  bottom: 14px;
  background: rgba(20, 23, 38, .78);
  color: var(--white);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}
.news-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-tag {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  background: rgba(108, 92, 231, .1);
  color: var(--primary);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
}
.news-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color .2s;
}
.news-title a:hover {
  color: var(--primary);
}
.news-summary {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  font-size: 13px;
  color: var(--text-weak);
}
.news-meta a {
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-meta a:hover {
  gap: 10px;
}
.stats-block {
  background: var(--bg-deep);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.stats-block::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108, 92, 231, .28), transparent 70%);
  top: -180px;
  right: -120px;
}
.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: var(--radius);
  padding: 34px 20px;
  transition: background .25s ease, transform .25s ease;
}
.stat-item:hover {
  background: rgba(255, 255, 255, .09);
  transform: translateY(-4px);
}
.stat-num {
  font-size: 42px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  letter-spacing: -1px;
}
.stat-label {
  margin-top: 8px;
  color: rgba(255, 255, 255, .66);
  font-size: 14px;
  font-weight: 500;
}
.schedule-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.schedule-item {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 26px;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.schedule-item:hover {
  border-color: rgba(108, 92, 231, .3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.schedule-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  min-height: 64px;
  background: var(--bg-soft);
  border-radius: 12px;
  color: var(--text);
}
.schedule-date span {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--primary);
}
.schedule-date small {
  font-size: 12px;
  color: var(--text-weak);
  margin-top: 3px;
}
.schedule-info {
  flex: 1;
  min-width: 0;
}
.schedule-info strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
}
.schedule-info span {
  font-size: 13px;
  color: var(--text-weak);
}
.schedule-teams {
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 12px;
}
.schedule-teams i {
  font-size: 11px;
  color: var(--primary);
  font-style: normal;
  font-weight: 900;
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.status-live {
  background: rgba(255, 71, 87, .12);
  color: #ff4757;
}
.status-live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff4757;
  animation: pulse 1.4s infinite;
}
.status-upcoming {
  background: rgba(108, 92, 231, .1);
  color: var(--primary);
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.78); }
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.topic-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3 / 3.4;
  box-shadow: var(--shadow);
  display: block;
}
.topic-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.topic-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(20, 23, 38, .85) 100%);
}
.topic-card:hover img {
  transform: scale(1.06);
}
.topic-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 24px;
  color: var(--white);
}
.topic-overlay .topic-label {
  display: inline-block;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 12px;
  font-weight: 800;
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 10px;
}
.topic-overlay h3 {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 6px;
}
.topic-overlay p {
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-wrap > h2 {
  font-size: 34px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
}
.faq-wrap > .faq-sub {
  text-align: center;
  color: var(--text-weak);
  margin-bottom: 40px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.faq-item:hover,
.faq-item[open] {
  border-color: rgba(108, 92, 231, .35);
  box-shadow: var(--shadow);
}
.faq-item summary {
  padding: 20px 26px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::before {
  content: "\f059";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--primary);
  font-size: 18px;
}
.faq-item[open] summary {
  color: var(--primary);
}
.faq-content {
  padding: 0 26px 22px 56px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
}
.cta-section {
  padding: 0 28px var(--space-lg);
}
.cta-inner {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, #8b7ef0 100%);
  border-radius: 24px;
  overflow: hidden;
  padding: 68px 56px;
  text-align: center;
  color: var(--white);
}
.cta-inner::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(245, 166, 35, .32), transparent 70%);
  top: -120px;
  left: -80px;
}
.cta-inner::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border: 44px solid rgba(255, 255, 255, .08);
  border-radius: 50%;
  bottom: -110px;
  right: -50px;
}
.cta-inner h2 {
  position: relative;
  z-index: 2;
  font-size: 34px;
  font-weight: 900;
  margin-bottom: 12px;
}
.cta-inner p {
  position: relative;
  z-index: 2;
  color: rgba(255, 255, 255, .82);
  font-size: 16px;
  margin-bottom: 32px;
}
.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, .7);
  padding-top: 60px;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  padding: 4px 0;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-col p {
  font-size: 14px;
  line-height: 1.9;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 13px;
  text-align: center;
  color: rgba(255, 255, 255, .45);
}
.footer-bottom i {
  color: var(--accent);
  font-size: 12px;
}
@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
  .section {
    padding: 64px 0;
  }
}
@media (max-width: 768px) {
  .header-top-inner {
    padding-top: 12px;
    padding-bottom: 12px;
  }
  .header-search {
    width: 220px;
  }
  .nav-inner {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0;
  }
  .nav-inner::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    padding: 15px 14px;
    font-size: 14px;
  }
  .nav-hot {
    display: none;
  }
  .category-hero {
    padding: 64px 0 56px;
  }
  .hero-content h1 {
    font-size: 38px;
  }
  .hero-content p {
    font-size: 15px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .schedule-item {
    flex-wrap: wrap;
    gap: 14px;
  }
  .schedule-teams {
    width: 100%;
    padding-left: 86px;
  }
  .schedule-teams .status {
    margin-left: auto;
  }
  .cta-inner {
    padding: 48px 28px;
  }
  .cta-inner h2 {
    font-size: 28px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .header-search {
    display: none;
  }
  .brand-logo {
    font-size: 19px;
  }
  .brand-logo i {
    font-size: 20px;
  }
  .category-hero {
    padding: 48px 0 44px;
  }
  .breadcrumb {
    font-size: 12px;
    padding: 5px 14px;
  }
  .hero-content h1 {
    font-size: 30px;
  }
  .hero-actions .btn {
    padding: 11px 20px;
    font-size: 14px;
  }
  .section {
    padding: 48px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 28px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .chip {
    padding: 8px 16px;
    font-size: 13px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat-num {
    font-size: 32px;
  }
  .schedule-item {
    padding: 16px 18px;
  }
  .schedule-teams {
    padding-left: 0;
    font-size: 15px;
  }
  .schedule-teams .status {
    font-size: 12px;
    padding: 4px 12px;
  }
  .faq-item summary {
    font-size: 15px;
    padding: 16px 18px;
  }
  .faq-content {
    padding: 0 18px 18px 44px;
    font-size: 14px;
  }
  .cta-section {
    padding-left: 18px;
    padding-right: 18px;
  }
  .cta-inner {
    padding: 40px 20px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .footer-main {
    padding-bottom: 30px;
  }
}

/* roulang page: article */
:root {
    --primary: #101c3d;
    --primary-light: #1d2f5e;
    --primary-dark: #0a1329;
    --accent: #f7a928;
    --accent-dark: #dd8f12;
    --accent-light: #fff4dc;
    --text-main: #1c2540;
    --text-weak: #64748b;
    --bg-page: #f5f6fb;
    --bg-card: #ffffff;
    --bg-deep: #0d1730;
    --border: #e4e8f2;
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 22px;
    --shadow-sm: 0 2px 10px rgba(16, 28, 61, 0.05);
    --shadow: 0 10px 32px rgba(16, 28, 61, 0.09);
    --shadow-lg: 0 18px 46px rgba(16, 28, 61, 0.16);
    --transition: all 0.25s ease;
    --container-width: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg-page);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; }
:focus-visible { outline: 3px solid rgba(247, 169, 40, 0.55); outline-offset: 2px; border-radius: 4px; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 24px; border-radius: 999px; border: 2px solid transparent;
    font-size: 15px; font-weight: 600; cursor: pointer; transition: var(--transition);
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(16, 28, 61, 0.25); }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(247, 169, 40, 0.4); }
.btn-ghost { background: rgba(255, 255, 255, 0.12); color: #fff; border-color: rgba(255, 255, 255, 0.4); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.22); border-color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.badge {
    display: inline-flex; align-items: center; gap: 4px;
    background: var(--accent-light); color: var(--accent-dark);
    border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 600;
}
.badge-accent { background: var(--accent); color: var(--primary-dark); }
.tag {
    display: inline-flex; align-items: center; gap: 5px;
    background: var(--bg-page); border: 1px solid var(--border);
    border-radius: 999px; padding: 5px 12px; font-size: 13px; color: var(--text-weak);
    transition: var(--transition);
}
.tag:hover { background: var(--accent-light); color: var(--accent-dark); border-color: var(--accent); }

.site-header { background: var(--bg-card); border-bottom: 1px solid var(--border); position: relative; z-index: 200; }
.header-top { border-bottom: 1px solid var(--border); background: linear-gradient(180deg, #fafbff 0%, #f3f5fb 100%); }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; }
.brand-logo i { font-size: 24px; color: var(--accent); }
.brand-logo .brand-accent { color: var(--accent); }
.header-right { display: flex; align-items: center; gap: 14px; }
.search-form { display: flex; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; height: 40px; width: 300px; transition: var(--transition); }
.search-form:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(247, 169, 40, 0.16); }
.search-form input { flex: 1; border: none; outline: none; padding: 0 18px; font-size: 14px; background: transparent; color: var(--text-main); }
.search-form button { width: 44px; border: none; background: transparent; color: var(--text-weak); cursor: pointer; transition: var(--transition); }
.search-form button:hover { color: var(--accent); }
.header-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: #fff; padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; }
.header-cta:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: 0 8px 18px rgba(16, 28, 61, 0.22); }
.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); border-radius: 8px; width: 40px; height: 40px; color: var(--primary); font-size: 17px; cursor: pointer; align-items: center; justify-content: center; }

.main-nav { background: var(--primary); box-shadow: 0 4px 18px rgba(16, 28, 61, 0.18); position: sticky; top: 0; z-index: 150; }
.nav-inner { display: flex; align-items: center; gap: 2px; min-height: 52px; max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.nav-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: rgba(255, 255, 255, 0.82); font-size: 15px; font-weight: 500;
    padding: 10px 18px; border-radius: 999px; transition: var(--transition);
}
.nav-link i { font-size: 14px; }
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.nav-link.active { background: var(--accent); color: var(--primary-dark); font-weight: 700; }
.nav-hot { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.7); font-size: 13px; margin-left: auto; padding-left: 16px; border-left: 1px solid rgba(255, 255, 255, 0.18); }
.nav-hot a { color: rgba(255, 255, 255, 0.88); }
.nav-hot a:hover { color: var(--accent); }
.nav-hot .dot { color: rgba(255, 255, 255, 0.35); }
.search-mobile { display: none; }

.page-banner { position: relative; background-size: cover; background-position: center 30%; padding: clamp(48px, 7vw, 84px) 0; color: #fff; }
.page-banner .container { position: relative; z-index: 2; }
.banner-badge { display: inline-block; background: rgba(247, 169, 40, 0.95); color: var(--primary-dark); font-size: 13px; font-weight: 700; padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; letter-spacing: 0.5px; }
.page-banner h1 { font-size: clamp(26px, 4vw, 42px); line-height: 1.3; max-width: 760px; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.3); margin-bottom: 12px; }
.page-banner p { font-size: 16px; color: rgba(255, 255, 255, 0.88); max-width: 600px; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35); }

.breadcrumb-wrap { display: flex; align-items: center; gap: 8px; padding-top: 22px; padding-bottom: 4px; font-size: 14px; color: var(--text-weak); }
.breadcrumb-wrap a { color: var(--text-weak); }
.breadcrumb-wrap a:hover { color: var(--accent-dark); }
.breadcrumb-wrap .sep { color: #c3cadb; }
.breadcrumb-wrap .current { color: var(--text-main); font-weight: 600; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.article-wrap { padding: 28px 0 56px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; align-items: start; }
.article-main { padding: 36px 40px; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-bottom: 20px; border-bottom: 1px solid var(--border); margin-bottom: 28px; }
.meta-item { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-weak); }
.meta-item i { color: var(--accent-dark); }
.article-content { font-size: 16px; line-height: 1.9; color: #2a3550; }
.article-content p { margin-bottom: 1.3em; }
.article-content h2 { font-size: 24px; color: var(--primary); margin: 1.8em 0 0.8em; line-height: 1.4; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-content h3 { font-size: 19px; color: var(--primary); margin: 1.5em 0 0.7em; }
.article-content ul, .article-content ol { margin: 0 0 1.4em; padding-left: 1.5em; }
.article-content ul li { list-style: disc; margin-bottom: 0.5em; }
.article-content ol li { list-style: decimal; margin-bottom: 0.5em; }
.article-content img { border-radius: var(--radius); box-shadow: var(--shadow); margin: 1.4em 0; height: auto; }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--accent-light); padding: 14px 20px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.5em 0; color: #57452a; }
.article-content a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; border-radius: var(--radius-sm); overflow: hidden; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--accent-light); color: var(--primary); font-weight: 600; }
.article-content strong { color: var(--primary); }
.article-footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.article-share { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-weak); }
.article-share a { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; background: var(--bg-page); border: 1px solid var(--border); color: var(--text-weak); }
.article-share a:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); }
.not-found { text-align: center; padding: 60px 20px; }
.not-found i { font-size: 48px; color: #c3cadb; margin-bottom: 18px; }
.not-found h2 { font-size: 26px; color: var(--primary); margin-bottom: 10px; }
.not-found p { color: var(--text-weak); margin-bottom: 26px; }

.article-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 72px; }
.widget { padding: 24px; }
.widget-title { display: flex; align-items: center; gap: 8px; font-size: 17px; color: var(--primary); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--accent-light); }
.widget-title i { color: var(--accent); }
.widget-cats { display: flex; flex-direction: column; gap: 12px; }
.widget-cat { display: flex; flex-direction: column; gap: 2px; padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-page); transition: var(--transition); }
.widget-cat i { color: var(--accent); margin-bottom: 2px; font-size: 16px; }
.widget-cat:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.widget-cat:hover i, .widget-cat:hover { color: #fff; }
.widget-cat span { font-size: 12px; color: var(--text-weak); }
.widget-cat:hover span { color: rgba(255, 255, 255, 0.65); }
.widget-list li { border-bottom: 1px dashed var(--border); padding: 10px 0; display: flex; flex-direction: column; gap: 3px; }
.widget-list li:last-child { border-bottom: none; }
.widget-list li a { font-size: 14px; color: var(--text-main); line-height: 1.5; }
.widget-list li a:hover { color: var(--accent-dark); }
.widget-list li span { font-size: 12px; color: var(--text-weak); }
.widget-empty { font-size: 14px; color: var(--text-weak); }
.widget-promo { background: var(--primary); border-color: var(--primary); color: #fff; }
.widget-promo img { border-radius: var(--radius-sm); margin-bottom: 14px; height: 150px; object-fit: cover; width: 100%; }
.widget-promo h3 { font-size: 17px; margin-bottom: 6px; color: #fff; }
.widget-promo p { font-size: 13px; color: rgba(255, 255, 255, 0.72); margin-bottom: 16px; }
.widget-promo .btn-outline { color: #fff; border-color: rgba(255, 255, 255, 0.6); }
.widget-promo .btn-outline:hover { background: var(--accent); border-color: var(--accent); color: var(--primary-dark); }

.related-section { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 64px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head h2 { font-size: 30px; color: var(--primary); margin-bottom: 10px; letter-spacing: 1px; }
.section-head p { color: var(--text-weak); font-size: 15px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.related-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.related-card img { height: 190px; object-fit: cover; width: 100%; transition: transform 0.4s ease; }
.related-card:hover img { transform: scale(1.04); }
.related-body { padding: 22px 24px; flex: 1; }
.related-body .badge { margin-bottom: 10px; }
.related-body h3 { font-size: 17px; color: var(--primary); margin-bottom: 8px; line-height: 1.45; }
.related-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }

.faq-section { padding: 64px 0; }
.faq-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 44px; align-items: center; }
.faq-intro .section-tag { display: inline-block; background: var(--accent-light); color: var(--accent-dark); font-size: 13px; font-weight: 700; padding: 5px 14px; border-radius: 999px; margin-bottom: 14px; }
.faq-intro h2 { font-size: 30px; color: var(--primary); margin-bottom: 12px; line-height: 1.35; }
.faq-intro p { color: var(--text-weak); margin-bottom: 22px; }
.faq-intro img { border-radius: var(--radius-lg); box-shadow: var(--shadow); height: 200px; object-fit: cover; width: 100%; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 0; overflow: hidden; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow); border-color: #d8deed; }
.faq-item summary { cursor: pointer; list-style: none; padding: 18px 22px; font-size: 15px; font-weight: 600; color: var(--primary); display: flex; align-items: center; gap: 10px; position: relative; }
.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: 13px; margin-left: auto; color: var(--accent); transition: var(--transition); }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] summary { color: var(--accent-dark); }
.faq-item p { padding: 0 22px 20px; font-size: 14px; color: var(--text-weak); line-height: 1.8; }

.cta-section { position: relative; background-size: cover; background-position: center; padding: 70px 0; text-align: center; color: #fff; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: clamp(24px, 3.4vw, 36px); margin-bottom: 14px; text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35); }
.cta-section p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.72); padding-top: 56px; }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .footer-logo { display: inline-flex; align-items: center; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col a { display: block; color: rgba(255, 255, 255, 0.65); font-size: 14px; margin-bottom: 10px; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-col p { font-size: 14px; margin-bottom: 10px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; }
.footer-bottom p { font-size: 13px; text-align: center; color: rgba(255, 255, 255, 0.5); }
.footer-bottom i { color: var(--accent); }

@media (max-width: 1024px) {
    .article-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; }
    .article-main { padding: 28px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .faq-grid { gap: 28px; }
}

@media (max-width: 900px) {
    .nav-toggle { display: inline-flex; }
    .header-top-inner { height: 62px; }
    .header-right .search-form { display: none; }
    .main-nav { position: relative; }
    .nav-inner { flex-direction: column; align-items: stretch; padding: 10px 20px 18px; min-height: auto; display: none; }
    .main-nav.open .nav-inner { display: flex; }
    .nav-link { padding: 10px 14px; }
    .nav-hot { margin-left: 0; padding-left: 0; border-left: none; border-top: 1px solid rgba(255, 255, 255, 0.14); margin-top: 8px; padding-top: 12px; flex-wrap: wrap; }
    .search-mobile { display: flex; width: 100%; margin-bottom: 12px; background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.2); }
    .search-mobile input { color: #fff; }
    .search-mobile input::placeholder { color: rgba(255, 255, 255, 0.55); }
    .search-mobile button { color: rgba(255, 255, 255, 0.75); }
    .article-sidebar { position: static; }
}

@media (max-width: 768px) {
    .container { padding: 0 18px; }
    .header-cta { font-size: 0; padding: 9px 12px; }
    .header-cta i { font-size: 16px; margin: 0; }
    .article-layout { grid-template-columns: 1fr; }
    .article-main { padding: 22px 20px; }
    .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
    .related-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .section-head h2 { font-size: 26px; }
    .breadcrumb-wrap .current { max-width: 200px; }
}

@media (max-width: 520px) {
    .brand-logo { font-size: 18px; }
    .brand-logo i { font-size: 20px; }
    .header-top-inner { height: 56px; gap: 8px; }
    .page-banner { padding: 42px 0; }
    .page-banner h1 { font-size: 24px; }
    .article-main { padding: 20px 16px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 20px; }
    .article-footer { flex-direction: column; align-items: flex-start; }
    .related-body { padding: 18px; }
    .footer-main { grid-template-columns: 1fr; gap: 24px; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .cta-actions .btn { width: 100%; }
    .breadcrumb-wrap { flex-wrap: wrap; font-size: 13px; }
}

/* roulang page: category2 */
:root{
  --primary:#0f172a;
  --primary-light:#1e293b;
  --primary-lighter:#334155;
  --accent:#f59e0b;
  --accent-hover:#d97706;
  --accent-soft:#fef3c7;
  --bg:#f8fafc;
  --bg-deep:#eef2f7;
  --white:#ffffff;
  --text:#1e293b;
  --text-muted:#64748b;
  --border:#e2e8f0;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 4px 24px rgba(15,23,42,.08);
  --shadow-hover:0 12px 36px rgba(15,23,42,.16);
  --transition:all .3s ease;
  --container:1200px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button,input{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
::selection{background:var(--accent);color:#fff}

/* ========== TOP BAR ========== */
.top-bar{background:var(--primary);color:rgba(255,255,255,.85);font-size:13px;padding:8px 0}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.top-bar-slogan i{color:var(--accent);margin-right:6px}
.top-bar-tools{display:flex;align-items:center;gap:16px}
.top-bar-tools span i{color:var(--accent);margin-right:4px}
.top-bar-tools a:hover{color:var(--accent)}

/* ========== BRAND BAR ========== */
.brand-bar{background:var(--white);border-bottom:1px solid var(--border);padding:18px 0}
.brand-bar .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-size:28px;font-weight:800;color:var(--primary);letter-spacing:-.5px;display:flex;align-items:center;gap:6px}
.logo i{color:var(--accent);font-size:26px}
.logo span{background:linear-gradient(135deg,var(--accent),#f97316);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.brand-search{flex:1;max-width:480px;display:flex;background:var(--bg-deep);border:1px solid var(--border);border-radius:50px;overflow:hidden;transition:var(--transition)}
.brand-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.brand-search input{flex:1;border:none;outline:none;background:transparent;padding:10px 18px;font-size:14px;color:var(--text)}
.brand-search button{background:var(--accent);border:none;color:#fff;padding:0 22px;cursor:pointer;font-size:15px;transition:var(--transition)}
.brand-search button:hover{background:var(--accent-hover)}
.brand-cta{display:flex;align-items:center;gap:10px}
.btn-primary{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;border:none;border-radius:50px;padding:10px 24px;font-weight:600;font-size:14px;cursor:pointer;transition:var(--transition);box-shadow:0 2px 8px rgba(245,158,11,.35)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 6px 18px rgba(245,158,11,.4)}
.btn-outline{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--border);border-radius:50px;padding:9px 20px;font-size:14px;color:var(--text-muted);font-weight:500;transition:var(--transition)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}

/* ========== MAIN NAV ========== */
.main-nav{background:var(--primary-light);position:sticky;top:0;z-index:100;box-shadow:0 4px 20px rgba(15,23,42,.18)}
.nav-inner{max-width:var(--container);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
.nav-inner::-webkit-scrollbar{display:none}
.nav-link{display:inline-flex;align-items:center;gap:7px;color:rgba(255,255,255,.82);font-size:15px;font-weight:600;padding:14px 20px;border-bottom:3px solid transparent;transition:var(--transition)}
.nav-link i{font-size:14px;color:rgba(255,255,255,.6)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#fff;border-bottom-color:var(--accent);background:rgba(245,158,11,.1)}
.nav-link.active i{color:var(--accent)}
.nav-hot{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:13px;color:rgba(255,255,255,.45);padding:0 8px}
.nav-hot span{display:inline-flex;align-items:center;gap:4px}
.nav-hot a{padding:4px 8px;border-radius:6px;color:rgba(255,255,255,.7);font-weight:500}
.nav-hot a:hover{color:var(--accent);background:rgba(245,158,11,.1)}
.nav-hot .dot{color:rgba(255,255,255,.25)}

/* ========== PAGE BANNER ========== */
.page-banner{position:relative;background-position:center;background-size:cover;padding:90px 0;color:#fff}
.page-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(15,23,42,.92) 0%,rgba(15,23,42,.7) 50%,rgba(15,23,42,.35) 100%)}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.65);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.75)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:var(--accent)}
.page-banner h1{font-size:42px;font-weight:800;letter-spacing:-1px;margin-bottom:14px;line-height:1.2}
.page-banner h1 i{color:var(--accent);margin-right:8px}
.page-banner .banner-desc{font-size:16px;color:rgba(255,255,255,.8);max-width:620px;line-height:1.8}
.banner-tags{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap}
.banner-tags .b-tag{background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.2);padding:6px 16px;border-radius:50px;font-size:13px;font-weight:500;color:rgba(255,255,255,.9)}
.banner-tags .b-tag i{color:var(--accent);margin-right:4px}

/* ========== SECTION BASE ========== */
.section{padding:70px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px;gap:16px;flex-wrap:wrap}
.section-title{font-size:28px;font-weight:800;color:var(--text);letter-spacing:-.5px;position:relative;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--accent),#f97316)}
.section-title span{color:var(--accent)}
.section-sub{color:var(--text-muted);font-size:14px;margin-top:6px;font-weight:400;padding-left:16px}
.section-link{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:5px}
.section-link:hover{gap:10px}

/* ========== FEATURED CARDS ========== */
.featured-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.article-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.article-card:hover .card-media img{transform:scale(1.06)}
.card-tag{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:50px;box-shadow:0 2px 8px rgba(0,0,0,.15);z-index:2}
.card-body{padding:20px 20px 16px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--text);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:var(--transition)}
.article-card:hover .card-body h3{color:var(--accent)}
.card-body p{font-size:13.5px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-muted);margin-top:auto;border-top:1px solid var(--bg-deep);padding-top:12px}
.card-meta i{color:var(--accent)}

/* ========== CATEGORY GRID ========== */
.cate-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cate-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:24px 14px;text-align:center;transition:var(--transition)}
.cate-card:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow-hover)}
.cate-card .cate-icon{width:52px;height:52px;border-radius:16px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 12px;transition:var(--transition)}
.cate-card:hover .cate-icon{background:var(--accent);color:#fff}
.cate-card h4{font-size:14px;font-weight:700;color:var(--text)}
.cate-card p{font-size:12px;color:var(--text-muted);margin-top:4px}

/* ========== SPLIT LAYOUT ========== */
.split-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}
.split-card{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden}
.split-card .split-head{background:var(--primary);color:#fff;padding:16px 24px;display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700}
.split-card .split-head i{color:var(--accent)}
.split-body{padding:20px 24px}
.rank-list li{display:flex;align-items:center;gap:14px;padding:14px 10px;border-bottom:1px solid var(--bg-deep);transition:var(--transition);cursor:pointer}
.rank-list li:last-child{border-bottom:0}
.rank-list li:hover{background:var(--accent-soft);border-radius:10px}
.rank-num{width:32px;height:32px;border-radius:10px;background:var(--bg-deep);color:var(--text-muted);font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.rank-list li:nth-child(1) .rank-num,.rank-list li:nth-child(2) .rank-num,.rank-list li:nth-child(3) .rank-num{background:linear-gradient(135deg,var(--accent),#f97316);color:#fff}
.rank-info{flex:1;min-width:0}
.rank-info h4{font-size:14px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);margin-top:2px}
.rank-meta i{color:var(--accent)}

/* ========== STEPS ========== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;position:relative;transition:var(--transition)}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--accent)}
.step-num{width:44px;height:44px;border-radius:14px;background:var(--primary);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;position:relative;z-index:2}
.step-item h4{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--text)}
.step-item p{font-size:13px;color:var(--text-muted);line-height:1.7}
.step-item::after{content:"";position:absolute;top:36px;left:calc(100% - 14px);width:28px;height:2px;background:var(--border);z-index:0}
.step-item:last-child::after{display:none}

/* ========== TIPS GRID ========== */
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tip-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);transition:var(--transition)}
.tip-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.tip-card .tip-top{height:8px;background:linear-gradient(90deg,var(--accent),#f97316)}
.tip-body{padding:26px 24px}
.tip-icon{width:50px;height:50px;border-radius:14px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}
.tip-card h4{font-size:17px;font-weight:700;margin-bottom:8px}
.tip-card p{font-size:13.5px;color:var(--text-muted);line-height:1.75}
.tip-card ul{margin-top:12px;display:grid;gap:6px}
.tip-card ul li{font-size:13px;color:var(--text);display:flex;align-items:center;gap:7px}
.tip-card ul li i{color:var(--accent);font-size:12px}

/* ========== REVIEW BLOCK ========== */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:var(--transition)}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.review-media{height:190px;overflow:hidden;position:relative}
.review-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.review-card:hover .review-media img{transform:scale(1.05)}
.review-media .play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.35)}
.review-media .play-btn i{width:48px;height:48px;background:rgba(255,255,255,.9);color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;transition:var(--transition);box-shadow:0 4px 16px rgba(0,0,0,.25)}
.review-card:hover .play-btn i{transform:scale(1.1);background:var(--accent);color:#fff}
.review-body{padding:22px 24px;flex:1}
.review-meta{display:flex;gap:12px;font-size:12px;color:var(--text-muted);margin-bottom:6px}
.review-meta span{display:inline-flex;align-items:center;gap:4px}
.review-meta i{color:var(--accent)}
.review-body h4{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:8px}
.review-body p{font-size:13.5px;color:var(--text-muted);line-height:1.7}

/* ========== CTA ========== */
.cta-section{padding:70px 0 90px}
.cta-box{position:relative;background:var(--primary);border-radius:24px;padding:60px 48px;text-align:center;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-40px;right:-40px;width:180px;height:180px;background:var(--accent);opacity:.15;border-radius:60px;transform:rotate(30deg)}
.cta-box::after{content:"";position:absolute;bottom:-50px;left:40px;width:120px;height:120px;background:#f97316;opacity:.12;border-radius:50%}
.cta-box h3{font-size:32px;font-weight:800;color:#fff;margin-bottom:10px;position:relative;z-index:2}
.cta-box h3 span{color:var(--accent)}
.cta-box p{color:rgba(255,255,255,.75);max-width:480px;margin:0 auto 30px;font-size:15px;line-height:1.8;position:relative;z-index:2}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}
.btn-cta-primary{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;padding:13px 34px;border-radius:50px;font-weight:700;font-size:15px;box-shadow:0 6px 20px rgba(245,158,11,.35);transition:var(--transition)}
.btn-cta-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 10px 28px rgba(245,158,11,.4)}
.btn-cta-ghost{display:inline-flex;align-items:center;gap:8px;border:1.5px solid rgba(255,255,255,.3);color:#fff;padding:12px 30px;border-radius:50px;font-weight:600;font-size:15px;transition:var(--transition)}
.btn-cta-ghost:hover{border-color:var(--accent);color:var(--accent);background:rgba(245,158,11,.08)}

/* ========== FOOTER ========== */
.site-footer{background:var(--primary);color:rgba(255,255,255,.72);padding-top:60px}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-logo{font-size:22px;font-weight:800;color:#fff;display:inline-flex;align-items:center}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);margin-top:14px;max-width:280px}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--accent);border-radius:2px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.6);padding:5px 0;transition:var(--transition)}
.footer-col a:hover{color:var(--accent);padding-left:6px}
.footer-col p{font-size:13.5px;color:rgba(255,255,255,.6);margin-bottom:8px;line-height:1.7}
.footer-col p i{color:var(--accent);margin-right:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom i{color:var(--accent);margin:0 4px}

/* ========== BACK TO TOP ========== */
.back-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:var(--accent);color:#fff;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 6px 20px rgba(245,158,11,.4);opacity:0;visibility:hidden;transform:translateY(12px);transition:var(--transition);z-index:99}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--accent-hover)}

/* ========== RESPONSIVE ========== */
@media (max-width:1024px){
  .featured-grid{grid-template-columns:repeat(2,1fr)}
  .cate-grid{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step-item::after{display:none}
  .split-grid{grid-template-columns:1fr}
  .tips-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .top-bar-tools span:first-child{display:none}
  .brand-bar .container{flex-wrap:wrap}
  .logo{width:100%;justify-content:center;margin-bottom:8px}
  .brand-search{max-width:100%;order:3;flex-basis:100%;margin-top:4px}
  .brand-cta{display:none}
  .main-nav{top:0}
  .nav-inner{padding:0 12px}
  .nav-hot{display:none}
  .nav-link{padding:12px 14px;font-size:14px}
  .page-banner{padding:60px 0}
  .page-banner h1{font-size:30px}
  .section{padding:50px 0}
  .section-title{font-size:22px}
  .cate-grid{grid-template-columns:repeat(3,1fr)}
  .cta-box{padding:40px 24px}
  .cta-box h3{font-size:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .featured-grid{grid-template-columns:1fr}
  .cate-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .tips-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .back-top{bottom:16px;right:16px}
}