/* roulang page: index */
:root {
  --primary: #3569A8;
  --primary-light: #6B9BD2;
  --primary-dark: #1F4A7A;
  --accent: #E8A23D;
  --bg: #F5F8FC;
  --bg-alt: #EFF4F9;
  --white: #FFFFFF;
  --dark: #15283D;
  --text: #1B2A3C;
  --text-sub: #5D6E82;
  --border: #E1E9F1;
  --success: #2E9E6B;
  --error: #D9534F;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(27,42,60,0.06);
  --shadow-md: 0 6px 20px rgba(27,42,60,0.08);
  --shadow-lg: 0 16px 40px rgba(27,42,60,0.12);
  --section-space: 96px;
  --section-space-md: 56px;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 96px 0;
}

.section-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.section-bar {
  display: inline-block;
  width: 4px;
  height: 24px;
  background: var(--primary);
  border-radius: 2px;
  flex-shrink: 0;
}

.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

.section-header p {
  width: 100%;
  margin-left: 16px;
  color: var(--text-sub);
  font-size: 14px;
}

.section-header.center {
  justify-content: center;
}

.section-header.center .section-bar {
  display: none;
}

.section-more {
  margin-left: auto;
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  padding: 6px 0;
}

.section-more:hover {
  text-decoration: underline;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-primary:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

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

.btn-outline:hover {
  background: #EAF1F8;
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

.btn-lg {
  height: 48px;
  padding: 0 28px;
  border-radius: 10px;
}

.btn-sm {
  height: 36px;
  padding: 0 18px;
  border-radius: 8px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
  height: 44px;
}

.btn[disabled] {
  opacity: .6;
  pointer-events: none;
}

/* 通用卡片 */
.card {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* 全局导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 64px;
  transition: box-shadow .25s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}

.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 20px 2px;
  text-decoration: none;
  transition: color .2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 2px;
  border-radius: 1px;
  background: var(--primary);
  opacity: 0;
  transition: opacity .2s ease;
}

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

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

.nav-link.active::after {
  opacity: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  background: #F0F4F9;
  border-radius: var(--radius-pill);
  height: 36px;
  padding: 0 12px;
  gap: 8px;
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.search-box svg {
  width: 16px;
  height: 16px;
  color: var(--text-sub);
  flex-shrink: 0;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  color: var(--text);
  width: 160px;
}

.search-box input::placeholder {
  color: #8A9AAB;
}

.search-box:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(53,105,168,.12);
}

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

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

/* Hero */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #EAF1F8 0%, #F5F8FC 100%);
  overflow: hidden;
  padding: 80px 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  opacity: .15;
  z-index: 0;
}

.hero-star {
  position: absolute;
  z-index: 1;
  color: var(--accent);
  opacity: .5;
  font-size: 14px;
  animation: star-twinkle 3s ease-in-out infinite;
  user-select: none;
  pointer-events: none;
}

.hero-star.st-white {
  color: #fff;
  opacity: .7;
  font-size: 10px;
}

.hero-star-1 {
  top: 18%;
  left: 12%;
  animation-delay: .2s;
}

.hero-star-2 {
  top: 30%;
  right: 18%;
  animation-delay: .8s;
}

.hero-star-3 {
  bottom: 22%;
  left: 22%;
  animation-delay: 1.4s;
}

.hero-star-4 {
  top: 15%;
  right: 30%;
  animation-delay: .5s;
  font-size: 18px;
}

@keyframes star-twinkle {
  0%, 100% { opacity: .3; transform: scale(1); }
  50% { opacity: .8; transform: scale(1.15); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  padding: 20px 0;
}

.hero h1 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  letter-spacing: 1px;
}

.hero-subtitle {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-sub);
}

.hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-badge {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 6px 16px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

/* 数据条 */
.stats {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
}

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

.stat-item strong {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-item span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-sub);
}

/* 议程时间线 */
.agenda {
  background: var(--bg-alt);
}

.timeline {
  position: relative;
  margin: 0 auto;
  max-width: 760px;
  padding: 8px 0 0 36px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding: 0 0 36px 24px;
}

.timeline-item:last-child {
  padding-bottom: 8px;
}

.timeline-dot {
  position: absolute;
  left: -31px;
  top: 0;
  width: 24px;
  height: 24px;
  background: #fff;
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-dot::after {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.timeline-time {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: .5px;
}

.timeline-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-top: 4px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 4px;
}

/* 亮点与嘉宾 */
.highlights {
  background: #fff;
}

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

.highlight-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}

.highlight-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.highlight-card.large {
  grid-column: span 2;
}

.highlight-icon {
  width: 32px;
  height: 32px;
  color: var(--primary);
  margin-bottom: 16px;
}

.highlight-icon svg {
  width: 32px;
  height: 32px;
}

.highlight-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.highlight-card p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.speaker-card {
  background: #F9FBFE;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: box-shadow .25s ease, transform .25s ease;
}

.speaker-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.speaker-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 12px;
  border: 2px solid var(--primary-light);
  background: var(--bg-alt);
}

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

.speaker-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.speaker-card p {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 2px;
}

/* 票种对比 */
.pricing {
  background: var(--bg-alt);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
  max-width: 960px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  border: 1px solid transparent;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pricing-card.recommended {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-8px);
}

.pricing-card.recommended:hover {
  transform: translateY(-10px);
}

.rec-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.price {
  margin-top: 16px;
  font-size: 15px;
  color: var(--text-sub);
}

.price-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.price-num.accent {
  color: var(--accent);
}

.price-unit {
  font-size: 15px;
  font-weight: 400;
  margin-left: 2px;
}

.price-benefits {
  margin: 24px 0;
  text-align: left;
  flex: 1;
}

.price-benefits li {
  position: relative;
  padding: 6px 0 6px 24px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

.price-benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* 报名表单 */
.signup {
  background: #fff;
}

.signup-wrap {
  display: grid;
  grid-template-columns: 58% 42%;
  gap: 48px;
  align-items: start;
}

.signup-info .section-header {
  margin-bottom: 20px;
}

.signup-info > p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
}

.signup-contact {
  margin-top: 32px;
}

.signup-contact li {
  position: relative;
  padding: 8px 0 8px 28px;
  font-size: 14px;
  color: var(--text);
}

.signup-contact li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 18px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--primary-light);
  border-radius: 50%;
}

.signup-form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 32px 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  height: 42px;
  border: 1px solid #D7E2EC;
  border-radius: 8px;
  padding: 0 12px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(53,105,168,.14);
}

.form-group.error input,
.form-group.error select {
  border-color: var(--error);
}

.form-group.error input:focus,
.form-group.error select:focus {
  box-shadow: 0 0 0 2px rgba(217,83,79,.14);
}

.field-error {
  display: none;
  color: var(--error);
  font-size: 13px;
  line-height: 1.4;
  margin-top: 4px;
}

.form-group.error .field-error {
  display: block;
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  background: #EAF7F0;
  border: 1px solid #CFE8DB;
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-top: 16px;
}

.form-success.visible {
  display: flex;
}

.success-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.form-success p {
  font-size: 14px;
  color: var(--success);
  margin: 0;
}

/* 最新资讯 */
.news {
  background: var(--bg-alt);
}

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

.news-feature {
  grid-column: span 2;
  display: flex;
  position: relative;
  overflow: hidden;
}

.news-feature::before,
.news-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
  z-index: 2;
}

.news-feature:hover::before,
.news-item:hover::before {
  transform: scaleX(1);
}

.news-cover {
  flex-shrink: 0;
  width: 45%;
  min-height: 180px;
  background: var(--bg-alt);
  position: relative;
}

.news-feature .news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.news-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body h3 a {
  color: var(--text);
}

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

.news-body p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.7;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-sub);
}

.news-cat {
  display: inline-block;
  background: #EAF1F8;
  color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 500;
}

.news-meta time {
  font-variant-numeric: tabular-nums;
}

.news-item {
  grid-column: span 1;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}

.news-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.news-item .news-cover {
  width: 100%;
  min-height: 120px;
  height: 120px;
}

.news-item .news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.news-item .news-body {
  padding: 16px;
  flex: 1;
  justify-content: flex-start;
}

.news-item .news-body h3 {
  font-size: 15px;
}

.news-item .news-meta {
  margin-top: 12px;
}

.news-more-wrap {
  text-align: center;
  margin-top: 32px;
}

.empty-state {
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-sub);
  font-size: 15px;
}

.empty-state-icon {
  font-size: 32px;
  margin-bottom: 12px;
  color: var(--primary-light);
}

/* FAQ */
.faq {
  background: #fff;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: #F9FBFE;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease;
}

.faq-item.open {
  border-color: var(--primary-light);
}

.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s ease;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--primary);
  transition: transform .2s ease, background .2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .2s ease;
}

.faq-answer p {
  padding: 0 20px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}

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

/* 底部 CTA 横幅 */
.cta-banner {
  background: var(--dark);
  padding: 64px 0;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-banner h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
}

.cta-banner p {
  color: #A7B8C9;
  margin-top: 8px;
  font-size: 15px;
}

.cta-banner .btn {
  flex-shrink: 0;
}

/* 页脚 */
.site-footer {
  background: var(--dark);
  padding: 64px 0 0;
  color: #A7B8C9;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.footer-logo svg {
  width: 22px;
  height: 22px;
  color: var(--primary-light);
}

.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 6px;
}

.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: #A7B8C9;
  text-decoration: none;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
}

.footer-bottom p {
  font-size: 13px;
  color: #72869A;
  text-align: center;
}

.footer-bottom a {
  color: #72869A;
  text-decoration: none;
}

.footer-bottom a:hover {
  color: #fff;
}

/* 响应式 */
@media (max-width: 1199px) {
  .search-box input {
    width: 120px;
  }

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

  .news-feature {
    grid-column: span 2;
  }

  .news-item {
    grid-column: span 1;
  }
}

@media (max-width: 1023px) {
  .search-box {
    display: none;
  }

  .header-inner {
    gap: 16px;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 20px;
    right: 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    padding: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    display: none;
    z-index: 999;
  }

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

  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 12px;
    border-radius: 6px;
  }

  .nav-link.active {
    background: #EAF1F8;
  }

  .nav-link::after {
    display: none;
  }

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

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

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

@media (max-width: 767px) {
  .section {
    padding: 56px 0;
  }

  .hero {
    min-height: 520px;
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 30px;
    line-height: 1.3;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 16px;
    padding: 32px 0;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .timeline {
    padding-left: 28px;
  }

  .timeline-item {
    padding-left: 16px;
  }

  .timeline-dot {
    left: -27px;
  }

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

  .highlight-card.large {
    grid-column: span 1;
  }

  .speakers-grid {
    grid-template-columns: 1fr;
    margin-top: 32px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .pricing-card.recommended {
    transform: translateY(0);
    order: -1;
  }

  .pricing-card.recommended:hover {
    transform: translateY(-2px);
  }

  .signup-form-card {
    padding: 24px 20px;
  }

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

  .news-feature,
  .news-item {
    grid-column: span 1;
  }

  .news-feature {
    flex-direction: column;
  }

  .news-cover {
    width: 100%;
    min-height: 150px;
    height: 150px;
  }

  .news-feature .news-cover img {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }

  .news-item .news-cover {
    height: 120px;
  }

  .cta-banner {
    padding: 48px 0;
  }

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

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

  .site-footer {
    padding-top: 48px;
  }
}

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

  .logo-text {
    font-size: 18px;
  }

  .header-actions .btn-sm {
    padding: 0 12px;
    font-size: 13px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-badge {
    padding: 5px 12px;
    font-size: 12px;
  }

  .stat-item strong {
    font-size: 28px;
  }
}

/* roulang page: article */
:root {
  --primary: #3569A8;
  --primary-light: #6B9BD2;
  --primary-dark: #1F4A7A;
  --accent: #E8A23D;
  --bg: #F5F8FC;
  --bg-alt: #EFF4F9;
  --white: #FFFFFF;
  --dark: #15283D;
  --text: #1B2A3C;
  --text-sub: #5D6E82;
  --border: #E1E9F1;
  --success: #2E9E6B;
  --error: #D9534F;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(27,42,60,0.06);
  --shadow-md: 0 6px 20px rgba(27,42,60,0.08);
  --shadow-lg: 0 16px 40px rgba(27,42,60,0.12);
  --space-lg: 96px;
  --space-md: 56px;
  --container: 1200px;
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  flex-shrink: 0;
}
.logo:hover { color: var(--text); }
.logo-icon { width: 24px; height: 24px; color: var(--primary); }
.logo-text { white-space: nowrap; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  padding: 8px 2px;
  position: relative;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 1px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.search-box {
  display: flex;
  align-items: center;
  background: #F0F4F9;
  border-radius: var(--radius-pill);
  padding: 0 14px;
  height: 36px;
  width: 220px;
  gap: 8px;
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}
.search-box:focus-within {
  background: var(--white);
  border-color: var(--primary);
}
.search-box svg { width: 16px; height: 16px; color: var(--text-sub); flex-shrink: 0; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  width: 100%;
  color: var(--text);
  font-family: var(--font);
}
.search-box input::placeholder { color: var(--text-sub); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font);
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: var(--white); color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: #EAF1F8; color: var(--primary-dark); }
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; border-radius: 8px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  border-radius: 8px;
  transition: background 0.2s;
}
.nav-toggle:hover { background: var(--bg); }
.nav-toggle span { display: block; height: 2px; border-radius: 2px; background: var(--text); }

/* Breadcrumb */
.breadcrumb {
  padding: 24px 0 0;
  font-size: 14px;
  color: var(--text-sub);
}
.breadcrumb-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumb-inner a { color: var(--text-sub); }
.breadcrumb-inner a:hover { color: var(--primary); }
.breadcrumb-sep { color: #B0BECD; }
.breadcrumb-current { color: var(--primary); font-weight: 500; }

/* Article Header */
.article-header {
  padding: 32px 0 40px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.article-header .container-narrow { text-align: left; }
.article-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin: 16px 0 12px;
  overflow-wrap: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--text-sub);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta svg { width: 14px; height: 14px; }
.meta-cat {
  background: #EAF1F8;
  color: var(--primary);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}
.article-featured-img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
  aspect-ratio: 16/8;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
.img-placeholder {
  width: 100%;
  aspect-ratio: 16/8;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #EAF1F8, #DCE7F3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 14px;
  margin-bottom: 32px;
}

/* Article Body */
.article-main {
  padding: 48px 0;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
}
.article-body p { margin-bottom: 1.4em; }
.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  border-radius: 0 4px 4px 0;
  line-height: 1.3;
}
.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 24px 0 12px;
  line-height: 1.4;
}
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-alt);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  color: var(--text-sub);
  font-size: 14px;
}
.article-body img { border-radius: var(--radius-md); margin: 20px 0; }
.article-body figure { margin: 24px 0; }
.article-body figcaption {
  font-size: 13px;
  color: var(--text-sub);
  text-align: center;
  margin-top: 8px;
}
.article-body ul {
  margin: 16px 0;
  padding-left: 20px;
}
.article-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
}
.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
}
.article-body ol {
  margin: 16px 0;
  padding-left: 20px;
}
.article-body ol li { margin-bottom: 10px; }
.article-body a { text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { text-decoration: none; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-body table th { background: var(--bg-alt); font-weight: 600; color: var(--primary-dark); }

/* Article Tags */
.article-tags {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.tag-chip {
  display: inline-block;
  background: #EAF1F8;
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 8px;
  transition: background 0.2s;
}
.tag-chip:hover { background: #D9E8F6; color: var(--primary-dark); }

/* Article CTA */
.article-cta {
  max-width: 760px;
  margin: 48px auto 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.article-cta h3 { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.article-cta p { color: var(--text-sub); font-size: 14px; margin-bottom: 20px; }

/* Related Posts */
.related-section {
  padding: 64px 0;
  background: var(--bg);
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  max-width: 1200px;
}
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-title::before {
  content: '';
  width: 4px;
  height: 22px;
  border-radius: 2px;
  background: var(--primary);
  display: inline-block;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
}
.related-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.related-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.related-card-img {
  aspect-ratio: 16/9;
  object-fit: cover;
  width: 100%;
}
.related-card-body { padding: 20px 24px; }
.related-card-body h4 { font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-body p { font-size: 13px; color: var(--text-sub); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* NotFound */
.notfound {
  padding: 64px 0;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}
.notfound h2 { font-size: 28px; color: var(--text); margin-bottom: 16px; }
.notfound p { color: var(--text-sub); margin-bottom: 24px; }

/* Back to top */
.back-to-top {
  max-width: 760px;
  margin: 32px auto 0;
  text-align: center;
  font-size: 14px;
}
.back-to-top a { color: var(--primary); font-weight: 500; }
.back-to-top a:hover { text-decoration: underline; }

/* Footer */
.site-footer {
  background: var(--dark);
  color: #A7B8C9;
  padding: 64px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  max-width: 1200px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-logo svg { width: 24px; height: 24px; color: var(--accent); }
.footer-col p { font-size: 14px; line-height: 1.7; margin-bottom: 8px; }
.footer-col h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #A7B8C9;
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #7A8FA3;
}

/* Mobile nav */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 16px 20px 24px;
  z-index: 99;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  animation: slideDown 0.25s ease;
}
.mobile-menu.open { display: block; }
.mobile-menu .nav-link {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  border-bottom: 1px solid var(--border);
}
.mobile-menu .nav-link:last-child { border-bottom: none; }
.mobile-menu .nav-link::after { display: none; }
.mobile-menu .nav-link.active { color: var(--primary); font-weight: 600; }
.mobile-menu .btn { margin-top: 16px; width: 100%; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1024px) {
  .search-box { width: 160px; }
  .main-nav { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .mobile-menu { display: none !important; }
}

@media (max-width: 767px) {
  .header-inner { gap: 12px; }
  .main-nav { display: none; }
  .search-box { display: none; }
  .header-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; }
  .header-actions { gap: 4px; }
  .article-title { font-size: 24px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .breadcrumb { padding-top: 16px; }
  .article-header { padding: 20px 0 28px; }
  .article-main { padding: 32px 0; }
  .related-section { padding: 48px 0; }
  .article-cta { padding: 24px; }
  .container, .container-narrow { padding-left: 16px; padding-right: 16px; }
}

@media (max-width: 520px) {
  .site-header { height: 60px; }
  .header-inner { height: 60px; }
  .logo { font-size: 18px; }
  .article-title { font-size: 21px; line-height: 1.35; }
  .section-title { font-size: 20px; }
  .related-card-body h4 { font-size: 15px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #3569A8;
            --primary-light: #6B9BD2;
            --primary-dark: #1F4A7A;
            --accent: #E8A23D;
            --bg: #F5F8FC;
            --bg-alt: #EFF4F9;
            --bg-white: #FFFFFF;
            --dark: #15283D;
            --text: #1B2A3C;
            --text-muted: #5D6E82;
            --border: #E1E9F1;
            --success: #2E9E6B;
            --error: #D9534F;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(27, 42, 60, 0.06);
            --shadow-md: 0 6px 20px rgba(27, 42, 60, 0.08);
            --shadow-lg: 0 16px 40px rgba(27, 42, 60, 0.12);
            --space: 96px;
            --space-mobile: 56px;
            --container: 1200px;
            --header-h: 64px;
            --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ============ Reset / Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img,
        svg,
        video {
            display: block;
            max-width: 100%;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            background: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        :focus-visible {
            outline: 3px solid rgba(53, 105, 168, 0.4);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--bg-alt);
            color: var(--primary-dark);
        }
        .btn-lg {
            height: 48px;
            padding: 0 32px;
            border-radius: 10px;
            font-size: 16px;
        }
        .btn-sm {
            height: 36px;
            padding: 0 18px;
            font-size: 14px;
            border-radius: 8px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ============ 全局导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-h);
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 24px;
            height: 24px;
            color: var(--primary);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 2px;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 1px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 36px;
            padding: 0 12px;
            background: #F0F4F9;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .search-box svg {
            width: 16px;
            height: 16px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .search-box:focus-within {
            background: var(--bg-white);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(53, 105, 168, 0.12);
        }
        .search-box input {
            width: 130px;
            font-size: 13px;
            color: var(--text);
            background: transparent;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 4px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            background: transparent;
            border: none;
            transition: background 0.2s ease;
        }
        .nav-toggle:hover {
            background: var(--bg-alt);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* ============ 页面 Hero ============ */
        .page-hero {
            position: relative;
            min-height: 260px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #EAF1F8 0%, #F5F8FC 100%);
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.22;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(245, 248, 252, 0.4);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #A7B8C9;
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 12px;
        }
        .page-hero .hero-lead {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.7;
        }

        /* ============ 板块通用 ============ */
        .section {
            padding-top: var(--space);
            padding-bottom: var(--space);
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
            gap: 16px;
        }
        .section-header h2 {
            position: relative;
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            padding-left: 14px;
        }
        .section-header h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            width: 4px;
            height: 28px;
            border-radius: 4px;
            background: var(--primary);
        }
        .section-more {
            font-size: 14px;
            color: var(--primary);
            white-space: nowrap;
        }
        .section-more:hover {
            text-decoration: underline;
        }
        @media (max-width: 767px) {
            .section {
                padding-top: var(--space-mobile);
                padding-bottom: var(--space-mobile);
            }
            .section-header h2 {
                font-size: 24px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
        }

        /* ============ 图文介绍区 ============ */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }
        .intro-text h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }
        .intro-text p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .chips-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            transition: all 0.2s ease;
            box-shadow: var(--shadow-sm);
        }
        .chip:hover {
            border-color: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: var(--shadow-md);
        }
        .chip.accent {
            color: #A96C1E;
            border-color: rgba(232, 162, 61, 0.5);
            background: rgba(232, 162, 61, 0.08);
        }
        .intro-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }
        .intro-image::after {
            content: "";
            position: absolute;
            inset: 0;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }
        @media (max-width: 991px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-image img {
                height: 300px;
            }
        }

        /* ============ 快速入口卡片（横向滑动） ============ */
        .entry-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .entry-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .entry-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .entry-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .entry-card:hover::before {
            opacity: 1;
        }
        .entry-card .card-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 12px;
            font-weight: 600;
            color: #A96C1E;
            background: rgba(232, 162, 61, 0.12);
            border: 1px solid rgba(232, 162, 61, 0.4);
            padding: 4px 10px;
            border-radius: var(--radius-sm);
        }
        .entry-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(53, 105, 168, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .entry-icon svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
            stroke-width: 2;
        }
        .entry-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 10px;
        }
        .entry-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .entry-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease;
        }
        .entry-card .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        @media (max-width: 991px) {
            .entry-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767px) {
            .entry-cards {
                display: flex;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch;
                gap: 16px;
                padding-bottom: 16px;
                margin-right: -20px;
                padding-right: 20px;
            }
            .entry-card {
                min-width: 260px;
                scroll-snap-align: start;
                flex-shrink: 0;
            }
        }

        /* ============ 流程时间线 ============ */
        .timeline {
            position: relative;
            max-width: 760px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border);
        }
        .timeline-item {
            position: relative;
            padding-bottom: 40px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -33px;
            top: 4px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-white);
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
        }
        .timeline-dot svg {
            width: 10px;
            height: 10px;
            color: var(--accent);
            fill: var(--accent);
        }
        .timeline-step {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 4px;
            display: inline-block;
        }
        .timeline-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        @media (max-width: 767px) {
            .timeline {
                padding-left: 36px;
            }
            .timeline-dot {
                left: -31px;
                width: 24px;
                height: 24px;
            }
        }

        /* ============ FAQ 手风琴 ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item.active {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            background: transparent;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(53, 105, 168, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.2s ease, background 0.2s ease;
        }
        .faq-question .faq-icon svg {
            width: 14px;
            height: 14px;
            color: var(--primary);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
        }
        .faq-item.active .faq-icon svg {
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* ============ CTA 区块 ============ */
        .cta-section {
            background: var(--dark);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 20px;
            right: 40px;
            width: 60px;
            height: 60px;
            background: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='rgba(232,162,61,0.2)' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12 2l2.4 7.6H22l-6.2 4.8L18.2 22 12 17.2 5.8 22l2.4-7.6L2 9.6h7.6L12 2z'/%3E%3C/svg%3E") no-repeat center;
            background-size: contain;
            opacity: 0.6;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -20px;
            left: 20px;
            width: 40px;
            height: 40px;
            background: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='rgba(232,162,61,0.15)' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12 2l2.4 7.6H22l-6.2 4.8L18.2 22 12 17.2 5.8 22l2.4-7.6L2 9.6h7.6L12 2z'/%3E%3C/svg%3E") no-repeat center;
            background-size: contain;
            opacity: 0.5;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary {
            background: var(--accent);
            color: var(--dark);
        }
        .cta-section .btn-primary:hover {
            background: #F0AC50;
            color: var(--dark);
            box-shadow: 0 12px 30px rgba(232, 162, 61, 0.3);
        }
        @media (max-width: 767px) {
            .cta-section {
                padding: 48px 24px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--dark);
            color: #A7B8C9;
            padding: 64px 0 0;
            margin-top: var(--space);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-logo svg {
            width: 20px;
            height: 20px;
            color: var(--primary-light);
        }
        .footer-logo span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-col p {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: #A7B8C9;
            padding: 4px 0;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
            line-height: 1.6;
        }
        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer {
                padding-top: 48px;
            }
        }

        /* ============ 响应式导航 ============ */
        @media (max-width: 991px) {
            .main-nav {
                gap: 18px;
            }
            .search-box input {
                width: 100px;
            }
        }
        @media (max-width: 767px) {
            .header-actions .search-box {
                display: none;
            }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 12px;
                right: 12px;
                background: var(--bg-white);
                border: 1px solid var(--border);
                border-radius: 8px;
                box-shadow: var(--shadow-md);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px;
                display: none;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 16px;
                border-radius: 6px;
                font-size: 15px;
            }
            .nav-link:hover {
                background: var(--bg-alt);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(53, 105, 168, 0.08);
            }
            .nav-toggle {
                display: flex;
            }
            .header-actions {
                gap: 8px;
            }
        }

        /* ============ 动画 ============ */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .page-hero .container>* {
            animation: fadeUp 0.5s ease both;
        }
        .page-hero .container>*:nth-child(2) {
            animation-delay: 0.05s;
        }
        .page-hero .container>*:nth-child(3) {
            animation-delay: 0.1s;
        }

        /* ============ 装饰星 ============ */
        .hero-star {
            position: absolute;
            border-radius: 50%;
            background: rgba(232, 162, 61, 0.4);
            animation: twinkle 3s ease-in-out infinite;
            z-index: 1;
        }
        @keyframes twinkle {
            0%,
            100% {
                opacity: 0.4;
            }
            50% {
                opacity: 0.8;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #3569A8;
  --primary-light: #6B9BD2;
  --primary-dark: #1F4A7A;
  --accent: #E8A23D;
  --bg: #F5F8FC;
  --bg-alt: #EFF4F9;
  --footer-bg: #15283D;
  --text: #1B2A3C;
  --text-secondary: #5D6E82;
  --border: #E1E9F1;
  --success: #2E9E6B;
  --error: #D9534F;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(27,42,60,0.06);
  --shadow-md: 0 6px 20px rgba(27,42,60,0.08);
  --shadow-lg: 0 16px 40px rgba(27,42,60,0.12);
  --space-section: 96px;
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
input, button, select, textarea { font-family: inherit; font-size: inherit; }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-alt); }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(53,105,168,0.08);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
}
.section-sub {
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  padding: 14px 28px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  text-align: center;
  line-height: 1.2;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(53,105,168,0.06);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.btn-sm {
  height: 36px;
  padding: 0 18px;
  font-size: 14px;
  border-radius: 8px;
}
.btn-lg {
  height: 48px;
  padding: 0 32px;
  font-size: 16px;
}
/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 64px;
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color .2s;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(53,105,168,0.04);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  border-radius: 1px;
  background: var(--primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  background: #F0F4F9;
  border-radius: var(--radius-pill);
  padding: 0 14px;
  height: 36px;
  width: 220px;
  border: 1px solid transparent;
  transition: all .2s ease;
}
.search-box:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(53,105,168,0.12);
}
.search-box svg {
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
  margin-right: 8px;
  flex-shrink: 0;
}
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 13px;
  color: var(--text);
}
.search-box input::placeholder {
  color: #9AABC0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: all .3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  height: 260px;
  background: linear-gradient(135deg, #EAF1F8 0%, #F5F8FC 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.35);
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.page-hero h1 {
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 8px;
}
.page-hero p {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 560px;
}
.star-dot {
  position: absolute;
  font-size: 18px;
  color: var(--accent);
  opacity: 0.4;
  animation: twinkle 3s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.6; }
}
/* ========== Service Section ========== */
.service-section {
  background: #fff;
}
.service-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: start;
}
.service-aside {
  position: sticky;
  top: 96px;
  align-self: start;
}
.service-aside h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
}
.service-aside p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 20px;
}
.service-aside .aside-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 10;
}
.service-aside .aside-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.service-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  transition: all .25s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--primary);
  transition: height .3s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(53,105,168,0.2);
}
.service-card:hover::before {
  height: 100%;
}
.service-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(53,105,168,0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.service-card .card-icon svg {
  width: 20px;
  height: 20px;
}
.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}
/* ========== Process Section ========== */
.process-section {
  background: var(--bg-alt);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.process-item {
  position: relative;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 24px 28px;
  border: 1px solid var(--border);
  text-align: center;
  transition: all .25s ease;
}
.process-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.process-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: 16px;
}
.process-item:nth-child(even) .process-step {
  background: var(--accent);
}
.process-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.process-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
/* ========== Ticket Section ========== */
.ticket-section {
  background: #fff;
}
.ticket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  align-items: stretch;
}
.ticket-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: all .25s ease;
}
.ticket-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.ticket-card.recommended {
  border: 2px solid var(--primary);
  background: #fff;
  box-shadow: var(--shadow-md);
}
.ticket-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 14px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.ticket-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.ticket-price {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin: 16px 0 20px;
  font-variant-numeric: tabular-nums;
}
.ticket-price .free {
  color: var(--accent);
}
.ticket-price small {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: 4px;
}
.ticket-features {
  flex: 1;
  margin-bottom: 24px;
}
.ticket-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
  line-height: 1.5;
}
.ticket-features li svg {
  width: 16px;
  height: 16px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 3px;
}
.ticket-card .btn {
  width: 100%;
}
/* ========== FAQ Section ========== */
.faq-section {
  background: var(--bg-alt);
}
.faq-list {
  max-width: 760px;
  margin: 40px auto 0;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .2s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-item.open {
  box-shadow: var(--shadow-sm);
  border-color: rgba(53,105,168,0.25);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: color .2s;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(53,105,168,0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .2s ease;
  position: relative;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 1px;
}
.faq-icon::before {
  width: 10px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 10px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  margin: 0 24px;
  padding: 16px 0 20px;
}
.faq-item.open .faq-answer {
  display: block;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
/* ========== CTA Banner ========== */
.cta-banner {
  position: relative;
  background: var(--footer-bg);
  padding: 72px 0;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}
.cta-banner .container {
  position: relative;
  z-index: 1;
}
.cta-banner h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-banner p {
  color: #A7B8C9;
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto 32px;
}
.cta-banner .btn-primary {
  background: var(--accent);
  color: var(--footer-bg);
}
.cta-banner .btn-primary:hover {
  background: #d4902f;
  color: var(--footer-bg);
}
/* ========== Footer ========== */
.site-footer {
  background: var(--footer-bg);
  padding: 64px 0 0;
  color: #A7B8C9;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo svg {
  width: 24px;
  height: 24px;
  color: var(--primary-light);
}
.footer-logo span {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}
.footer-col p {
  line-height: 1.7;
  margin-bottom: 8px;
  font-size: 13px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #A7B8C9;
  font-size: 14px;
  margin-bottom: 10px;
  transition: color .2s;
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(167,184,201,0.7);
}
.footer-bottom p {
  margin: 0;
}
/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .search-box {
    width: 180px;
  }
  .service-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .service-aside {
    position: static;
    max-width: 100%;
  }
  .service-aside .aside-img {
    max-width: 480px;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ticket-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ticket-card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  :root {
    --space-section: 56px;
  }
  .main-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 16px;
    right: 16px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    z-index: 99;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link.active {
    background: rgba(53,105,168,0.08);
    border-radius: var(--radius-sm);
  }
  .nav-toggle {
    display: flex;
  }
  .search-box {
    display: none;
  }
  .header-actions .btn-sm {
    display: none;
  }
  .page-hero {
    height: 220px;
  }
  .page-hero h1 {
    font-size: 26px;
  }
  .section-title {
    font-size: 24px;
  }
  .service-cards {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .ticket-grid {
    grid-template-columns: 1fr;
  }
  .ticket-card:last-child {
    grid-column: auto;
    max-width: none;
  }
  .ticket-card.recommended {
    order: -1;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px 18px;
  }
  .faq-answer {
    margin: 0 18px;
    padding: 14px 0 18px;
  }
  .cta-banner {
    padding: 56px 0;
  }
  .cta-banner h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .page-hero h1 {
    font-size: 22px;
  }
  .btn-lg {
    width: 100%;
    max-width: 360px;
  }
}