/* roulang page: index */
:root {
  --primary: #2563EB;
  --primary-dark: #1E40AF;
  --primary-light: #DBEAFE;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --dark: #0F172A;
  --dark-light: #1E293B;
  --dark-card: #1A2440;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --text: #0F172A;
  --text-weak: #64748B;
  --border: #E2E8F0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 16px 44px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 268px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

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

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

/* 布局 */
.layout-wrapper {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* 侧栏导航 */
.sidebar {
  width: var(--sidebar-width);
  background: var(--dark);
  color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: var(--transition);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-header {
  padding: 32px 28px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  border-radius: 12px;
  letter-spacing: -0.5px;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 1.3;
}

.brand-name small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
}

.sidebar-nav {
  padding: 24px 16px;
  flex: 1;
  overflow-y: auto;
}

.nav-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.35);
  padding: 0 14px;
  margin-bottom: 14px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  margin-bottom: 6px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: var(--transition);
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.4);
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

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

.nav-link.active {
  background: rgba(37, 99, 235, 0.25);
  color: #fff;
  border-left-color: var(--accent);
}

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

.sidebar-foot {
  padding: 20px 20px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 4px 6px 4px 16px;
  margin-bottom: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.sidebar-search:focus-within {
  border-color: rgba(245, 158, 11, 0.5);
  background: rgba(255, 255, 255, 0.1);
}

.sidebar-search input {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 14px;
  padding: 8px 0;
  min-width: 0;
}

.sidebar-search input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.sidebar-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 10px;
  color: #fff;
  font-size: 14px;
  transition: var(--transition);
}

.sidebar-search button:hover {
  background: var(--accent-dark);
}

.sidebar-tip {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  padding: 0 6px;
}

.sidebar-tip i {
  color: var(--accent);
  font-size: 14px;
}

.sidebar-close {
  display: none;
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 16px;
  z-index: 10;
}

.sidebar-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  z-index: 999;
  backdrop-filter: blur(2px);
}

/* 移动端顶部导航 */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 950;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: #fff;
  font-size: 18px;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.mobile-brand {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.mobile-search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
}

.mobile-search-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 34px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn:hover i.fa-arrow-right {
  transform: translateX(4px);
}

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

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

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

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

.btn-ghost-dark {
  background: transparent;
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.4);
}

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

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

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

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

.btn-lg {
  padding: 16px 44px;
  font-size: 16px;
}

.button-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(37, 99, 235, 0.82) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: #fff;
  padding: 120px 0 100px;
}

.hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 6px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 28px;
}

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

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, #fff 60%, #d3e0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 22px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 18px;
}

.hero-desc {
  max-width: 620px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 760px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 22px 20px;
  text-align: center;
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}

.stat-num {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

/* 通用板块 */
.section {
  padding: 100px 0;
}

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

.section-dark {
  position: relative;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.93) 0%, rgba(15, 23, 42, 0.88) 100%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  color: #fff;
}

.section-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(180deg, var(--bg), transparent);
}

.section-head {
  margin-bottom: 56px;
  max-width: 640px;
}

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

.section-dark .section-head {
  color: #fff;
}

.section-head .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-dark .section-head .section-tag {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent);
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-dark .section-head h2 {
  color: #fff;
}

.section-head p {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.7;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.6);
}

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

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

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

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

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

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 14px;
  font-size: 22px;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05) rotate(-3deg);
}

.feature-card:nth-child(2) .feature-icon {
  background: #FEF3C7;
  color: #D97706;
}

.feature-card:nth-child(2):hover .feature-icon {
  background: #D97706;
  color: #fff;
}

.feature-card:nth-child(3) .feature-icon {
  background: #D1FAE5;
  color: #059669;
}

.feature-card:nth-child(3):hover .feature-icon {
  background: #059669;
  color: #fff;
}

.feature-card:nth-child(4) .feature-icon {
  background: #FCE7F3;
  color: #DB2777;
}

.feature-card:nth-child(4):hover .feature-icon {
  background: #DB2777;
  color: #fff;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-weak);
}

/* 分类入口 */
.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.category-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

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

.category-cover {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.category-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.category-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.4));
}

.category-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.category-body {
  padding: 30px 32px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.category-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.category-body p {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 22px;
  flex: 1;
}

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

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

.category-card:hover .link-more i {
  transform: translateX(5px);
}

/* 资讯列表 */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-item {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.news-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.news-item:hover::before {
  opacity: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.news-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
}

.news-date {
  font-size: 14px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-date i {
  font-size: 13px;
}

.news-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}

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

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

.news-excerpt {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.news-more i {
  font-size: 13px;
  transition: transform 0.3s ease;
}

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

.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  color: var(--text-weak);
  font-size: 16px;
}

/* 流程板块 */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.process-item {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.process-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-6px);
}

.process-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  margin: 0 auto 22px;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.process-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.process-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* 精选内容 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.featured-card {
  background: var(--surface);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.featured-cover {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.featured-tag {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  z-index: 2;
}

.featured-body {
  padding: 24px 26px 28px;
}

.featured-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.featured-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.25);
}

.faq-item[open] {
  box-shadow: var(--shadow);
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.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: 14px;
  color: var(--text-weak);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-item .faq-answer {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

/* CTA */
.cta-section {
  position: relative;
  padding: 110px 0;
  background:
    linear-gradient(135deg, rgba(29, 78, 216, 0.92) 0%, rgba(15, 23, 42, 0.95) 100%),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
  text-align: center;
}

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

.cta-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);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 14px;
  margin-bottom: 24px;
}

.cta-section h2 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 36px;
}

.cta-form {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto 28px;
}

.cta-form input {
  flex: 1;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 14px 22px;
  font-size: 15px;
  color: #fff;
  min-width: 0;
}

.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.cta-form input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.16);
}

.cta-meta {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}

.cta-meta a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding: 72px 32px 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: #fff;
}

.footer-logo .brand-mark {
  width: 40px;
  height: 40px;
  font-size: 15px;
  border-radius: 10px;
}

.footer-logo span {
  font-size: 18px;
  font-weight: 700;
}

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

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
  font-size: 14px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* 焦点状态 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(245, 158, 11, 0.6);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.3);
  }

  .sidebar.open {
    transform: translateX(0);
  }

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

  .sidebar-overlay.active {
    display: block;
  }

  .mobile-header {
    display: flex;
  }

  .main-content {
    margin-left: 0;
    padding-top: 64px;
  }

  .hero {
    min-height: 560px;
    padding: 100px 0 80px;
  }

  .hero h1 {
    font-size: 44px;
  }

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

  .section {
    padding: 80px 0;
  }
}

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

  .hero {
    min-height: auto;
    padding: 80px 0 72px;
    text-align: center;
  }

  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    max-width: 460px;
    margin: 0 auto;
  }

  .section-head h2 {
    font-size: 30px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

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

  .category-cover {
    height: 200px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }

  .cta-form {
    flex-direction: column;
  }

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

  .cta-section h2 {
    font-size: 32px;
  }

  .news-item {
    padding: 22px;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

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

  .hero-subtitle {
    font-size: 18px;
  }

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

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

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

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

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

  .section-head h2 {
    font-size: 26px;
  }

  .section-head p {
    font-size: 15px;
  }

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

  .button-group {
    width: 100%;
  }

  .category-cover {
    height: 180px;
  }

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

  .news-meta {
    gap: 10px;
  }

  .news-title {
    font-size: 17px;
  }

  .news-excerpt {
    font-size: 14px;
  }

  .cta-section {
    padding: 80px 0;
  }
}

/* roulang page: category1 */
:root{
  --primary:#0f172a;
  --primary-light:#1e293b;
  --accent:#f59e0b;
  --accent-hover:#d97706;
  --accent-light:#fef3c7;
  --bg:#f1f5f9;
  --surface:#ffffff;
  --text:#0f172a;
  --text-secondary:#475569;
  --text-muted:#94a3b8;
  --border:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(15,23,42,.06);
  --shadow:0 4px 20px rgba(15,23,42,.08);
  --shadow-lg:0 12px 40px rgba(15,23,42,.12);
  --nav-width:260px;
  --transition:.3s ease;
  --font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
::selection{background:var(--accent);color:var(--primary)}

/* Layout */
.layout{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{
  width:var(--nav-width);
  background:var(--primary);
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding:28px 0;
  transition:transform var(--transition);
}
.sidebar-brand{
  padding:0 24px 30px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:24px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
}
.brand-mark{
  background:linear-gradient(135deg,var(--accent),#fbbf24);
  color:var(--primary);
  font-weight:800;
  font-size:18px;
  width:44px;height:44px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  letter-spacing:-.5px;
  box-shadow:0 4px 12px rgba(245,158,11,.3);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:.5px;
}
.brand-text small{
  display:block;
  font-size:11px;
  font-weight:400;
  color:rgba(255,255,255,.5);
  letter-spacing:1px;
  margin-top:2px;
}
.sidebar-nav{flex:1;padding:0 16px;display:flex;flex-direction:column;gap:4px}
.nav-label{
  font-size:11px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:rgba(255,255,255,.35);
  padding:0 12px;
  margin-bottom:12px;
  font-weight:600;
}
.nav-link{
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 16px;
  border-radius:12px;
  color:rgba(255,255,255,.65);
  font-size:15px;
  font-weight:500;
  transition:all var(--transition);
  position:relative;
  overflow:hidden;
}
.nav-link i{
  width:20px;
  text-align:center;
  font-size:16px;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
  transform:translateX(4px);
}
.nav-link.active{
  color:var(--primary);
  background:var(--accent);
  font-weight:600;
  box-shadow:0 4px 14px rgba(245,158,11,.25);
}
.nav-link.active:hover{
  transform:none;
  background:var(--accent);
}
.sidebar-footer{
  padding:20px 24px;
  border-top:1px solid rgba(255,255,255,.08);
}
.sidebar-footer p{
  font-size:12px;
  color:rgba(255,255,255,.35);
  line-height:1.5;
}

/* Main content */
.main-content{
  flex:1;
  margin-left:var(--nav-width);
  min-width:0;
}

/* Hero */
.category-hero{
  position:relative;
  padding:80px 0 70px;
  background:linear-gradient(135deg,rgba(15,23,42,.92),rgba(30,41,59,.75)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
}
.category-hero::after{
  content:'';
  position:absolute;
  bottom:0;left:0;right:0;
  height:80px;
  background:linear-gradient(transparent,var(--bg));
  pointer-events:none;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(245,158,11,.15);
  border:1px solid rgba(245,158,11,.3);
  color:var(--accent);
  padding:6px 16px;
  border-radius:30px;
  font-size:13px;
  font-weight:500;
  letter-spacing:1px;
  margin-bottom:20px;
}
.hero-badge i{font-size:12px}
.category-hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:1px;
  margin-bottom:16px;
}
.category-hero h1 span{
  color:var(--accent);
}
.category-hero .hero-desc{
  font-size:17px;
  color:rgba(255,255,255,.75);
  max-width:680px;
  line-height:1.8;
}
.hero-stats{
  display:flex;
  gap:40px;
  margin-top:36px;
  flex-wrap:wrap;
}
.hero-stat{
  display:flex;
  flex-direction:column;
}
.hero-stat .num{
  font-size:32px;
  font-weight:800;
  color:var(--accent);
  line-height:1;
}
.hero-stat .label{
  font-size:13px;
  color:rgba(255,255,255,.55);
  margin-top:6px;
  letter-spacing:1px;
}

/* Section */
.section{padding:70px 0}
.section-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent-hover);
  font-size:13px;
  font-weight:600;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:8px;
}
.section-tag i{font-size:11px}
.section-title{
  font-size:30px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:.5px;
}
.section-desc{
  color:var(--text-secondary);
  font-size:15px;
  max-width:600px;
  margin-top:8px;
}
.section-link a{
  color:var(--text-secondary);
  font-size:14px;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:color var(--transition);
}
.section-link a:hover{color:var(--accent-hover)}

/* Tag cloud */
.tags-panel{
  background:var(--surface);
  border-radius:var(--radius);
  padding:32px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
}
.tags-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:16px;
}
.tag-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  background:var(--bg);
  border-radius:30px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  border:1px solid transparent;
  transition:all var(--transition);
  cursor:pointer;
}
.tag-item:hover{
  background:var(--accent-light);
  border-color:var(--accent);
  color:var(--primary);
  transform:translateY(-2px);
}
.tag-item i{font-size:12px;color:var(--accent)}

/* Cards */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:32px 28px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:all var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,var(--accent),transparent);
  opacity:0;
  transition:opacity 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:52px;height:52px;
  background:var(--accent-light);
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--accent-hover);
  margin-bottom:20px;
}
.feature-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
}
.feature-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
}

/* News list */
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.news-card{
  background:var(--surface);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:all var(--transition);
  display:flex;
  flex-direction:column;
}
.news-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.news-cover{
  position:relative;
  height:220px;
  overflow:hidden;
}
.news-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-card:hover .news-cover img{
  transform:scale(1.05);
}
.news-cat{
  position:absolute;
  top:16px;left:16px;
  background:rgba(15,23,42,.85);
  backdrop-filter:blur(8px);
  color:#fff;
  font-size:12px;
  padding:6px 14px;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.15);
}
.news-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:12px;
  color:var(--text-muted);
  margin-bottom:10px;
}
.news-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-meta i{font-size:11px}
.news-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  margin-bottom:8px;
  transition:color var(--transition);
}
.news-card:hover .news-body h3{color:var(--accent-hover)}
.news-body p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
  flex:1;
}
.news-footer{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
}
.news-footer a{
  color:var(--accent-hover);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-footer a:hover{gap:10px;transition:gap var(--transition)}

/* Hot game data */
.hot-section{
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius);
  padding:50px 40px;
  position:relative;
  overflow:hidden;
}
.hot-section::before{
  content:'';
  position:absolute;
  top:-60px;right:-60px;
  width:240px;height:240px;
  background:radial-gradient(circle,rgba(245,158,11,.15),transparent 70%);
}
.hot-section::after{
  content:'';
  position:absolute;
  bottom:-80px;left:-40px;
  width:280px;height:280px;
  background:radial-gradient(circle,rgba(245,158,11,.08),transparent 70%);
}
.hot-section .section-title{color:#fff}
.hot-section .section-desc{color:rgba(255,255,255,.6)}
.hot-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:36px;
  position:relative;z-index:1;
}
.hot-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  padding:24px 20px;
  transition:all var(--transition);
  backdrop-filter:blur(4px);
}
.hot-item:hover{
  background:rgba(255,255,255,.1);
  transform:translateY(-4px);
  border-color:rgba(245,158,11,.4);
}
.hot-rank{
  font-size:12px;
  color:var(--accent);
  font-weight:700;
  letter-spacing:2px;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
}
.hot-rank i{font-size:10px}
.hot-item h4{
  font-size:16px;
  font-weight:600;
  margin-bottom:8px;
}
.hot-item .match-meta{
  font-size:13px;
  color:rgba(255,255,255,.55);
  line-height:1.6;
}
.hot-item .match-rate{
  margin-top:14px;
  font-size:22px;
  font-weight:800;
  color:var(--accent);
}

/* Process */
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:30px;
  counter-reset:process;
}
.process-step{
  text-align:center;
  position:relative;
  padding:0 16px;
}
.process-step::before{
  counter-increment:process;
  content:counter(process,decimal-leading-zero);
  font-size:40px;
  font-weight:800;
  color:var(--accent-light);
  display:block;
  margin-bottom:16px;
  letter-spacing:-2px;
}
.process-step:not(:last-child)::after{
  content:'';
  position:absolute;
  top:30px;right:-18px;
  width:36px;height:2px;
  background:var(--border);
}
.process-step h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:8px;
}
.process-step p{
  font-size:13px;
  color:var(--text-secondary);
  line-height:1.7;
}

/* FAQ */
.faq-panel{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  background:var(--surface);
  border-radius:14px;
  border:1px solid var(--border);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--transition);
}
.faq-item:hover{border-color:var(--accent)}
.faq-question{
  padding:22px 28px;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:16px;
  font-weight:600;
  gap:16px;
}
.faq-question i{
  color:var(--accent);
  transition:transform var(--transition);
  flex-shrink:0;
}
.faq-item.open .faq-question i{
  transform:rotate(45deg);
}
.faq-answer{
  padding:0 28px;
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-item.open .faq-answer{
  max-height:300px;
  padding-bottom:22px;
}
.faq-answer p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  border-top:1px solid var(--border);
  padding-top:14px;
}

/* CTA */
.cta-section{
  padding:60px 0 80px;
}
.cta-box{
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:24px;
  padding:50px 60px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:40px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:'';
  position:absolute;
  top:0;right:0;
  width:300px;height:300px;
  background:url('/assets/images/backpic/back-3.png') center/cover;
  opacity:.1;
  border-radius:0 24px 0 24px;
}
.cta-content h2{
  font-size:26px;
  font-weight:800;
  margin-bottom:8px;
}
.cta-content p{
  color:rgba(255,255,255,.65);
  font-size:14px;
}
.btn-group{
  display:flex;
  gap:12px;
  position:relative;z-index:1;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 28px;
  border-radius:12px;
  font-size:14px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:all var(--transition);
}
.btn-accent{
  background:var(--accent);
  color:var(--primary);
}
.btn-accent:hover{
  background:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(245,158,11,.3);
}
.btn-outline{
  border:1px solid rgba(255,255,255,.3);
  color:#fff;
  background:transparent;
}
.btn-outline:hover{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.5);
  transform:translateY(-2px);
}

/* Footer */
.site-footer{
  background:var(--primary);
  color:#fff;
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:50px;
  padding-bottom:40px;
}
.footer-brand .footer-logo{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  width:40px;height:40px;
  font-size:16px;
}
.footer-brand .footer-logo span:last-child{
  font-size:18px;
  font-weight:700;
  color:#fff;
}
.footer-brand p{
  font-size:14px;
  color:rgba(255,255,255,.55);
  line-height:1.8;
  max-width:360px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:1px;
  margin-bottom:18px;
  color:#fff;
}
.footer-col ul li{
  margin-bottom:10px;
  font-size:14px;
  color:rgba(255,255,255,.5);
  transition:color var(--transition);
}
.footer-col ul li a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-col ul li i{
  margin-right:8px;
  font-size:11px;
  color:var(--accent);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{
  font-size:13px;
  color:rgba(255,255,255,.35);
}

/* Mobile nav */
.mobile-nav-toggle{
  display:none;
  position:fixed;
  top:16px;left:16px;
  z-index:200;
  width:44px;height:44px;
  background:var(--primary);
  border:1px solid rgba(255,255,255,.2);
  border-radius:12px;
  color:#fff;
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.layout.mobile-open .sidebar{
  transform:translateX(0);
  box-shadow:0 0 0 100vw rgba(0,0,0,.5);
}
.layout.mobile-open .mobile-nav-toggle i.fa-bars::before{
  content:'\f00d';
}

/* Responsive */
@media(max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .hot-list{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:40px 20px}
  .process-step:not(:last-child)::after{display:none}
}

@media(max-width:768px){
  .mobile-nav-toggle{display:flex}
  .sidebar{
    transform:translateX(-100%);
    width:280px;
  }
  .main-content{margin-left:0}
  .category-hero{padding:60px 0 50px}
  .category-hero h1{font-size:30px}
  .hero-stats{gap:24px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-box{flex-direction:column;padding:40px 30px}
  .btn-group{width:100%}
  .btn-group .btn{flex:1}
}

@media(max-width:520px){
  .container{padding:0 16px}
  .category-hero h1{font-size:26px}
  .category-hero .hero-desc{font-size:15px}
  .hero-stats{gap:16px 24px}
  .hero-stat .num{font-size:26px}
  .section{padding:50px 0}
  .section-title{font-size:24px}
  .feature-grid{grid-template-columns:1fr}
  .hot-list{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .tags-panel{padding:24px 20px}
  .news-cover{height:180px}
  .cta-box{padding:32px 20px}
  .footer-bottom{flex-direction:column;text-align:center}
  .btn{width:100%;justify-content:center}
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
    --primary: #166c58;
    --primary-dark: #0e4f40;
    --primary-light: #e3f1ed;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f5f8f7;
    --bg-card: #ffffff;
    --text: #172b24;
    --text-muted: #617a71;
    --border: #dce8e3;
    --radius: 18px;
    --radius-sm: 12px;
    --radius-lg: 24px;
    --shadow: 0 8px 28px rgba(15, 35, 30, 0.07);
    --shadow-hover: 0 16px 40px rgba(15, 35, 30, 0.12);
    --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --sidebar-w: 280px;
    --content-max: 1200px;
    --trans: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset / Base ===== */
*, *::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: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

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

/* ===== 侧边栏导航 ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    background: #10221c;
    background-image: linear-gradient(160deg, #10221c 0%, #0b1814 100%);
    color: #fff;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    padding: 32px 24px 24px;
    overflow-y: auto;
    transition: transform var(--trans);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), #fbbf24);
    color: #10221c;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: 0.5px;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
    flex-shrink: 0;
}

.brand-name {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0.3px;
}

.nav-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 16px;
    padding-left: 12px;
    font-weight: 600;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 14px;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.65);
    font-weight: 500;
    font-size: 15px;
    transition: background var(--trans), color var(--trans), transform var(--trans);
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 16px;
    opacity: 0.7;
    transition: opacity var(--trans);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
    transform: translateX(4px);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(22, 108, 88, 0.9), rgba(14, 79, 64, 0.95));
    color: #fff;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(22, 108, 88, 0.35);
}

.nav-link.active i {
    opacity: 1;
    color: var(--accent);
}

.sidebar-card {
    margin-top: auto;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 18px 16px;
    text-align: center;
}

.sidebar-card i {
    font-size: 22px;
    color: var(--accent);
    margin-bottom: 8px;
}

.sidebar-card p {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}

.sidebar-card span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== 移动端顶部 ===== */
.mobile-topbar {
    display: none;
    position: sticky;
    top: 0;
    z-index: 900;
    background: #10221c;
    color: #fff;
    padding: 14px 16px;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.mobile-topbar .menu-toggle {
    color: #fff;
    font-size: 20px;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.07);
    transition: background var(--trans);
}

.mobile-topbar .menu-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
}

.mobile-logo {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.4px;
    color: #fff;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 950;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--trans);
}

/* ===== 主内容区 ===== */
.main-content {
    margin-left: var(--sidebar-w);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== 文章横幅 ===== */
.article-banner {
    position: relative;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 72px 0 64px;
    color: #fff;
    overflow: hidden;
}

.article-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(8, 25, 19, 0.88) 0%, rgba(8, 25, 19, 0.55) 60%, rgba(8, 25, 19, 0.3) 100%);
}

.banner-content {
    position: relative;
    z-index: 2;
}

.banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 7px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    backdrop-filter: blur(6px);
    margin-bottom: 14px;
}

.banner-content h1 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.35;
    max-width: 640px;
    letter-spacing: 0.5px;
}

.banner-content p {
    margin-top: 10px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 520px;
}

/* ===== 文章主体 ===== */
.article-container {
    padding-top: 40px;
    padding-bottom: 40px;
}

.article-main-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 44px 48px;
    margin-bottom: 40px;
    border: 1px solid var(--border);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.breadcrumb a {
    color: var(--primary);
    font-weight: 500;
    transition: color var(--trans);
}

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

.article-title {
    font-size: 32px;
    line-height: 1.4;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.3px;
    margin-bottom: 18px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    padding-bottom: 24px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--text-muted);
}

.article-meta i {
    color: var(--primary);
    font-size: 14px;
}

.article-content {
    font-size: 16px;
    line-height: 2;
    color: #22382f;
}

.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 14px;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
    line-height: 1.5;
}

.article-content h3 {
    font-size: 19px;
    font-weight: 700;
    margin-top: 26px;
    margin-bottom: 10px;
}

.article-content p {
    margin-bottom: 18px;
}

.article-content ul,
.article-content ol {
    padding-left: 4px;
    margin-bottom: 22px;
}

.article-content li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
}

.article-content ul li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 14px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
}

.article-content ol {
    counter-reset: list;
}

.article-content ol li::before {
    counter-increment: list;
    content: counter(list) ".";
    position: absolute;
    left: 0;
    font-weight: 700;
    color: var(--primary);
}

.article-content img {
    border-radius: var(--radius);
    margin: 22px 0;
    box-shadow: var(--shadow);
}

.article-content blockquote {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    padding: 16px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 20px;
    color: var(--primary-dark);
    font-weight: 500;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 32px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
}

.tag-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-right: 4px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 50px;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    transition: all var(--trans);
}

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

/* 内容未找到 */
.not-found-box {
    text-align: center;
    padding: 60px 20px;
}

.not-found-icon {
    font-size: 56px;
    color: var(--primary);
    margin-bottom: 18px;
}

.not-found-box h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.not-found-box p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #fff 0%, #f5f8f7 100%);
}

.section-head {
    margin-bottom: 36px;
}

.section-head h2 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.3px;
    position: relative;
    padding-bottom: 14px;
}

.section-head h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 48px;
    height: 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.section-head p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 8px;
}

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

.related-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform var(--trans), box-shadow var(--trans);
}

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

.related-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.related-card-body {
    padding: 20px 22px 24px;
}

.related-card-body h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 10px;
    transition: color var(--trans);
}

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

.related-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 70px 0;
    background: #f5f8f7;
}

.faq-wrap {
    max-width: 860px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--trans);
}

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

.faq-question {
    width: 100%;
    text-align: left;
    padding: 18px 22px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: background var(--trans);
}

.faq-question:hover {
    background: #f8fbfa;
}

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

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

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

.faq-answer-inner {
    padding: 0 22px 20px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.9;
}

/* ===== CTA ===== */
.cta-section {
    padding: 70px 0;
}

.cta-card {
    background: linear-gradient(135deg, #10221c 0%, #166c58 100%);
    border-radius: var(--radius-lg);
    padding: 48px 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(16, 34, 28, 0.25);
}

.cta-card::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.15);
}

.cta-card h2 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
}

.cta-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    max-width: 400px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: all var(--trans);
}

.btn-light {
    background: #fff;
    color: #10221c;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.btn-light:hover {
    background: var(--accent);
    color: #10221c;
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

/* ===== 页脚 ===== */
.site-footer {
    background: #0b1814;
    color: rgba(255, 255, 255, 0.7);
    padding-top: 60px;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.9;
    max-width: 360px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.footer-col ul li {
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-col ul a {
    transition: color var(--trans);
}

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

.footer-col ul li i {
    color: var(--accent);
    margin-right: 6px;
    font-size: 12px;
}

.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 p {
    line-height: 1.8;
}

/* ===== 焦点 / 可访问性 ===== */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 3px solid rgba(245, 158, 11, 0.6);
    outline-offset: 2px;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1100px) {
    .sidebar {
        width: 244px;
        padding: 26px 18px;
    }
    .brand-name {
        font-size: 15px;
    }
    .article-main-card {
        padding: 36px 32px;
    }
}

@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        padding: 28px 22px;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }
    .main-content {
        margin-left: 0;
    }
    .mobile-topbar {
        display: flex;
    }
    .article-banner {
        padding: 52px 0 44px;
    }
    .banner-content h1 {
        font-size: 28px;
    }
    .article-main-card {
        padding: 30px 24px;
    }
    .related-grid {
        grid-template-columns: 1fr;
        max-width: 460px;
        margin: 0 auto;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 18px;
    }
    .article-title {
        font-size: 24px;
    }
    .article-banner h1 {
        font-size: 24px;
    }
    .article-main-card {
        padding: 24px 18px;
        border-radius: 16px;
    }
    .article-meta {
        gap: 10px;
        flex-direction: column;
    }
    .article-meta span {
        font-size: 12px;
    }
    .article-content {
        font-size: 15px;
        line-height: 1.9;
    }
    .article-content h2 {
        font-size: 20px;
    }
    .cta-card {
        padding: 34px 24px;
        flex-direction: column;
        text-align: center;
    }
    .cta-card p {
        max-width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-brand p {
        max-width: 100%;
    }
    .banner-content p {
        font-size: 13px;
    }
}

/* roulang page: category2 */
:root {
  --primary: #1b2a4a;
  --primary-light: #2b3f66;
  --primary-dark: #0e1726;
  --accent: #f0a120;
  --accent-hover: #d98f0e;
  --bg: #f5f7fb;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-soft: #5b6b83;
  --border: #e3e9f2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 6px 30px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ========== 左侧导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: var(--primary-dark);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  box-shadow: 2px 0 24px rgba(0, 0, 0, 0.08);
}

.brand {
  padding: 34px 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), #ffbe3d);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(240, 161, 32, 0.3);
}

.brand-text {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.4px;
  line-height: 1.3;
}

.sidebar-nav {
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-label {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  padding: 6px 12px 10px;
  font-weight: 600;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 14px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateX(3px);
}

.nav-link.active {
  background: linear-gradient(135deg, rgba(240, 161, 32, 0.2), rgba(255, 190, 61, 0.1));
  color: var(--accent);
  font-weight: 600;
  border: 1px solid rgba(240, 161, 32, 0.25);
}

.sidebar-footer {
  padding: 20px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-footer span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 1px;
}

/* ========== 主内容区 ========== */
.main-wrapper {
  margin-left: 260px;
  min-height: 100vh;
}

/* ========== 移动端顶栏 ========== */
.mobile-topbar {
  display: none;
}

/* ========== Hero Banner ========== */
.page-hero {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(135deg, rgba(27, 42, 74, 0.92), rgba(14, 23, 38, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(240, 161, 32, 0.18), transparent 70%);
  border-radius: 50%;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 18px;
}

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

.breadcrumb .sep {
  opacity: 0.5;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 16px;
  line-height: 1.25;
  background: linear-gradient(90deg, #fff, #ffe4b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero .hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  line-height: 1.8;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
}

.hero-tag i {
  color: var(--accent);
  font-size: 13px;
}

/* ========== 平台流程板块 ========== */
.section-block {
  padding: 90px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: rgba(240, 161, 32, 0.1);
  color: #b9790e;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-soft);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px 30px 32px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(240, 161, 32, 0.35);
}

.step-num {
  font-size: 44px;
  font-weight: 800;
  color: rgba(240, 161, 32, 0.25);
  line-height: 1;
  margin-bottom: 20px;
  font-family: Georgia, serif;
}

.step-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.step-card p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
}

.step-card::after {
  content: '';
  position: absolute;
  top: 36px;
  right: -14px;
  width: 28px;
  height: 28px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f0a120' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E") center/contain no-repeat;
  opacity: 0.5;
}

.step-card:last-child::after {
  display: none;
}

/* ========== 玩法模块 ========== */
.play-section {
  background: linear-gradient(180deg, #f5f7fb 0%, #eef2f8 100%);
  padding: 90px 0;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.module-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #ffbe3d);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.module-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(240, 161, 32, 0.25);
}

.module-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, rgba(240, 161, 32, 0.1), rgba(255, 190, 61, 0.05));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.module-icon i {
  font-size: 22px;
  color: var(--accent);
}

.module-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.module-card p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.75;
}

.module-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 12px;
  color: #b9790e;
  background: rgba(240, 161, 32, 0.08);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 600;
}

/* ========== 精选内容 ========== */
.featured-section {
  padding: 90px 0;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.featured-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.featured-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(240, 161, 32, 0.3);
}

.featured-cover {
  position: relative;
  height: 210px;
  overflow: hidden;
}

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

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

.featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(14, 23, 38, 0.6));
}

.featured-body {
  padding: 26px 26px 30px;
}

.featured-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.featured-body p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.75;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.featured-link:hover {
  color: var(--accent-hover);
  gap: 10px;
}

.featured-link i {
  font-size: 12px;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 90px 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
}

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(240, 161, 32, 0.3);
}

.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

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

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

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

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin: 0 24px 20px;
  padding: 16px 0 0;
}

/* ========== CTA ========== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14, 23, 38, 0.92), rgba(27, 42, 74, 0.88));
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(240, 161, 32, 0.35);
}

.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(240, 161, 32, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

/* ========== 页脚 ========== */
.site-footer {
  margin-left: 260px;
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 50px;
  padding: 60px 32px 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 360px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

.footer-col ul li i {
  color: var(--accent);
  font-size: 13px;
  margin-right: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  max-width: 1320px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}

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

@media (max-width: 768px) {
  .site-header {
    width: 100%;
    height: auto;
    position: relative;
    box-shadow: none;
  }

  .brand {
    padding: 18px 20px;
    border-bottom: none;
  }

  .sidebar-nav {
    flex-direction: row;
    padding: 10px 16px;
    overflow-x: auto;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-label,
  .sidebar-footer {
    display: none;
  }

  .nav-link {
    white-space: nowrap;
    padding: 10px 18px;
    font-size: 14px;
  }

  .nav-link:hover {
    transform: none;
  }

  .main-wrapper {
    margin-left: 0;
  }

  .site-footer {
    margin-left: 0;
  }

  .page-hero {
    padding: 64px 0 50px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .page-hero .hero-sub {
    font-size: 15px;
  }

  .section-block,
  .play-section,
  .featured-section,
  .faq-section {
    padding: 60px 0;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .container {
    padding: 0 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 20px 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding: 18px 20px;
  }
}

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

  .page-hero h1 {
    font-size: 24px;
  }

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

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

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

  .step-card::after {
    display: none;
  }

  .hero-tags {
    flex-direction: column;
    align-items: flex-start;
  }
}