/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0c2d48;
  --primary-dark: #071f33;
  --primary-light: #16466e;
  --accent: #d4a147;
  --accent-light: #e6bd6e;
  --bg-body: #f4f6fa;
  --bg-section: #ffffff;
  --bg-dark: #0c2d48;
  --text-main: #1e2a38;
  --text-weak: #6a7887;
  --text-light: #ffffff;
  --border-color: #e3e8ee;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.10);
  --space-section: 96px;
  --container-width: 1240px;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--bg-body);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

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

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

ul, ol {
  list-style: none;
}

/* ===== 通用容器 ===== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(12, 45, 72, 0.25);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(12, 45, 72, 0.3);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(212, 161, 71, 0.3);
}
.btn-accent:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 161, 71, 0.4);
}
.btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  background: transparent;
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-outline-dark {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(212, 161, 71, 0.5);
  outline-offset: 2px;
}

/* ===== 徽章 / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(212, 161, 71, 0.12);
  color: var(--accent);
  letter-spacing: 0.5px;
}
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(12, 45, 72, 0.06);
  color: var(--primary-light);
}

/* ===== 头部双层导航 ===== */
.site-header {
  background: var(--bg-section);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05), 0 8px 30px rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.brand i {
  font-size: 24px;
  color: var(--accent);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  width: 260px;
}
.search-box input {
  width: 100%;
  padding: 10px 40px 10px 16px;
  border-radius: 50px;
  border: 1.5px solid var(--border-color);
  background: var(--bg-body);
  font-size: 14px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 161, 71, 0.12);
}
.search-box .search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-weak);
  font-size: 14px;
}
.header-cta {
  padding: 10px 24px;
  font-size: 14px;
}
.main-nav {
  background: var(--primary);
}
.nav-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-top: 0;
  padding-bottom: 0;
}
.nav-wrap::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  border-bottom: 3px solid transparent;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
  white-space: nowrap;
}
.nav-link i {
  font-size: 14px;
  opacity: 0.8;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav-link.active {
  color: #fff;
  border-bottom-color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 600;
}
.nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  padding: 120px 0 140px;
  background: linear-gradient(135deg, rgba(7, 31, 51, 0.92), rgba(12, 45, 72, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: var(--text-light);
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 161, 71, 0.2), transparent 70%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  backdrop-filter: blur(4px);
  margin-bottom: 24px;
}
.hero-title {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
  background: linear-gradient(to right, #fff, var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 640px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-meta-item i {
  font-size: 20px;
  color: var(--accent);
}
.hero-meta-item span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.hero-meta-item strong {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

/* ===== 板块通用 ===== */
.section {
  padding: var(--space-section) 0;
}
.section-bg-alt {
  background: var(--bg-section);
}
.section-bg-muted {
  background: var(--bg-body);
}
.section-bg-dark {
  background: var(--bg-dark);
  color: #fff;
}
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(212, 161, 71, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.8;
}
.section-bg-dark .section-title {
  color: #fff;
}
.section-bg-dark .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

/* ===== 核心说明卡片 ===== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.about-card {
  padding: 40px 32px;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  text-align: center;
}
.about-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: var(--accent);
}
.about-icon {
  width: 74px;
  height: 74px;
  margin: 0 auto 24px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
  background: linear-gradient(135deg, rgba(212, 161, 71, 0.15), rgba(212, 161, 71, 0.08));
}
.about-card h3 {
  font-size: 19px;
  color: var(--primary);
  margin-bottom: 12px;
}
.about-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ===== 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
}
.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.category-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.category-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .category-card-img img {
  transform: scale(1.05);
}
.category-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 31, 51, 0.6), transparent 60%);
}
.category-card-body {
  padding: 32px;
}
.category-card-body h3 {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 10px;
}
.category-card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 20px;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.3s;
}
.category-link:hover {
  gap: 14px;
}
.category-card-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  background: rgba(12, 45, 72, 0.85);
  color: #fff;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

/* ===== 最新资讯列表 ===== */
.news-section {
  background: var(--bg-body);
}
.news-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-item {
  display: block;
  padding: 28px 32px;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
}
.news-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateX(6px);
}
.news-meta-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.news-cat {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  background: rgba(212, 161, 71, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
.news-date {
  font-size: 13px;
  color: var(--text-weak);
}
.news-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-summary {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-arrow {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 18px;
  opacity: 0;
  transition: opacity 0.3s;
}
.news-item:hover .news-arrow {
  opacity: 1;
}
.news-featured-card {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 36px;
  color: #fff;
  position: sticky;
  top: 140px;
}
.news-featured-card h3 {
  font-size: 20px;
  margin-bottom: 16px;
  color: var(--accent-light);
}
.news-featured-card p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}
.news-featured-card .btn {
  width: 100%;
}
.empty-tip {
  padding: 48px;
  text-align: center;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-color);
  color: var(--text-weak);
  font-size: 16px;
}

/* ===== 数据区 ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: #fff;
  padding: 80px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.stat-item {
  padding: 24px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}
.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}
.stat-icon {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 12px;
}
.stat-number {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

/* ===== 流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 56px;
}
.step-item {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.3s ease;
}
.step-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-item h3 {
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 12px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}
.step-line {
  position: absolute;
  top: 68px;
  right: -20px;
  color: var(--border-color);
  font-size: 24px;
  z-index: 2;
}

/* ===== 特色内容卡片 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.feature-card {
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}
.feature-card-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.feature-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .feature-card-img img {
  transform: scale(1.06);
}
.feature-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 31, 51, 0.4), transparent 50%);
}
.feature-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 4px 14px;
  border-radius: 50px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(212, 161, 71, 0.4);
}
.feature-card-body {
  padding: 28px;
}
.feature-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.4;
}
.feature-card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--bg-section);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item:hover {
  border-color: var(--accent);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  text-align: left;
}
.faq-question i {
  color: var(--accent);
  font-size: 18px;
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
}
.faq-item.active .faq-answer {
  padding: 0 28px 24px;
  max-height: 300px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(7, 31, 51, 0.9), rgba(12, 45, 72, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}
.cta-content {
  max-width: 640px;
  margin: 0 auto;
}
.cta-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding-top: 72px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand i {
  color: var(--accent);
}
.footer-desc {
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.3s, padding-left 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-links a i {
  font-size: 12px;
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom a:hover {
  color: var(--accent);
}
.footer-domain {
  color: rgba(255, 255, 255, 0.5);
}

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }
  .hero-title {
    font-size: 40px;
  }
  .news-layout {
    grid-template-columns: 1fr;
  }
  .news-featured-card {
    position: static;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 56px;
  }
  .header-top {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .header-actions {
    flex-direction: row;
    justify-content: space-between;
  }
  .search-box {
    width: 100%;
  }
  .header-cta {
    display: none;
  }
  .hero {
    padding: 80px 0 100px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-meta-row {
    gap: 16px;
    margin-top: 32px;
  }
  .hero-meta-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .section-title {
    font-size: 26px;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .step-line {
    display: none;
  }
  .cta-title {
    font-size: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .stat-number {
    font-size: 28px;
  }
  .news-item {
    padding: 20px;
  }
  .news-arrow {
    display: none;
  }
  .news-item:hover {
    transform: none;
  }
  .category-card-body {
    padding: 24px;
  }
  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 20px;
  }
  .faq-item.active .faq-answer {
    padding: 0 20px 20px;
  }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #0f2b46;
  --primary-light: #1a405f;
  --primary-deep: #0a1f33;
  --secondary: #e8a53c;
  --secondary-light: #f6c568;
  --accent: #f0b35a;
  --bg: #f6f8fb;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-weak: #5b6b7f;
  --border: #e3e9f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(15, 42, 70, 0.06);
  --shadow-md: 0 8px 30px rgba(15, 42, 70, 0.10);
  --shadow-lg: 0 16px 50px rgba(15, 42, 70, 0.15);
  --transition: all .3s ease;
}

/* ============ 基础 Reset ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; border: none; outline: none; }
ul, ol { list-style: none; }

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

.section { padding: 88px 0; }

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--secondary);
  background: rgba(232, 165, 60, 0.12);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}

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

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-accent {
  background: var(--secondary);
  color: var(--primary-deep);
}
.btn-accent:hover {
  background: var(--secondary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 165, 60, 0.35);
}
.btn-accent:active {
  transform: translateY(0);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
  background: transparent;
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(232, 165, 60, 0.5);
  outline-offset: 2px;
}

/* ============ Header 站点头部 ============ */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 12px rgba(15, 42, 70, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
}
.brand i {
  font-size: 26px;
  color: var(--secondary);
}
.brand:hover { color: var(--primary-light); }

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

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 220px;
  padding: 10px 36px 10px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
}
.search-box input::placeholder { color: #9aa8b8; }
.search-box input:focus {
  background: #fff;
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(232, 165, 60, 0.14);
  width: 260px;
}
.search-icon {
  position: absolute;
  right: 14px;
  color: var(--text-weak);
  font-size: 14px;
  pointer-events: none;
}

.header-cta {
  padding: 10px 22px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  background: transparent;
  font-size: 22px;
  color: var(--primary);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
}
.menu-toggle:hover { background: var(--bg); }

/* 主导航 */
.main-nav {
  background: var(--primary);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 0;
  padding-bottom: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-wrap::-webkit-scrollbar { display: none; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
}
.nav-link i { font-size: 14px; }
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav-link.active {
  color: #fff;
  border-bottom-color: var(--secondary);
  background: rgba(255, 255, 255, 0.04);
}

.mobile-search {
  display: none;
  position: relative;
  margin: 12px 8px;
}
.mobile-search input {
  width: 100%;
  padding: 12px 40px 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.mobile-search input::placeholder { color: rgba(255, 255, 255, 0.5); }
.mobile-search i {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.5);
}

/* ============ 分类 Banner ============ */
.category-banner {
  position: relative;
  background-image: linear-gradient(120deg, rgba(10, 31, 51, 0.88), rgba(15, 42, 70, 0.72)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 112px 0 96px;
  color: #fff;
  overflow: hidden;
}
.category-banner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 165, 60, 0.22), transparent 70%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb i { font-size: 11px; color: rgba(255, 255, 255, 0.45); }
.breadcrumb span { color: var(--secondary); }

.category-banner h1 {
  font-size: clamp(36px, 5.5vw, 56px);
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.banner-desc {
  font-size: 18px;
  line-height: 1.8;
  max-width: 640px;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 32px;
}

.banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.banner-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
}
.banner-tags i { color: var(--secondary); font-size: 11px; }

/* ============ Intro 简介 ============ */
.intro-section { background: var(--bg); }

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.intro-text .section-eyebrow { margin-bottom: 14px; }
.intro-text h2 {
  font-size: clamp(26px, 3.5vw, 34px);
  color: var(--primary);
  line-height: 1.35;
  margin-bottom: 20px;
}
.intro-text p {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.9;
  margin-bottom: 16px;
}

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

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stat-card i {
  font-size: 26px;
  color: var(--secondary);
  margin-bottom: 12px;
}
.stat-card .num {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.stat-card .label {
  font-size: 14px;
  color: var(--text-weak);
  margin-top: 6px;
}

/* ============ 内容卡片 ============ */
.cards-section { background: #fff; }

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

.content-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.content-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.content-card:hover .card-img img {
  transform: scale(1.06);
}
.card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 42, 70, 0.12), transparent 50%);
  pointer-events: none;
}

.card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

.card-body h3 {
  font-size: 19px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  transition: var(--transition);
}
.content-card:hover .card-body h3 { color: var(--primary-light); }

.card-body p {
  font-size: 14.5px;
  color: var(--text-weak);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 18px;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-weak);
}
.card-meta span { display: inline-flex; align-items: center; gap: 6px; }
.card-meta i { color: var(--secondary); }

/* ============ 资讯列表 ============ */
.news-section { background: var(--bg); }

.news-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.news-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--secondary);
  opacity: 0;
  transition: var(--transition);
}
.news-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 165, 60, 0.3);
}
.news-item:hover::before { opacity: 1; }

.news-num {
  font-size: 28px;
  font-weight: 800;
  color: rgba(15, 42, 70, 0.18);
  min-width: 50px;
  text-align: center;
}

.news-content {
  flex: 1;
}
.news-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  line-height: 1.4;
  transition: var(--transition);
}
.news-item:hover .news-content h3 { color: var(--primary-light); }
.news-content p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

.news-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  text-align: right;
  font-size: 13px;
  color: var(--text-weak);
  white-space: nowrap;
}
.news-meta span { display: inline-flex; align-items: center; gap: 6px; }
.news-meta i { color: var(--secondary); }
.news-date {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
}

/* ============ 流程板块 ============ */
.process-section {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary));
  color: #fff;
}

.process-section .section-eyebrow { background: rgba(232, 165, 60, 0.15); }
.process-section .section-head h2 { color: #fff; }
.process-section .section-head p { color: rgba(255, 255, 255, 0.68); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 10px;
}

.process-step {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 36px 26px;
  text-align: center;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.process-step:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-6px);
  border-color: rgba(232, 165, 60, 0.4);
}

.process-step::after {
  content: '\f054';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: -22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--secondary);
  font-size: 16px;
  z-index: 2;
}
.process-step:last-child::after { display: none; }

.step-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(232, 165, 60, 0.18);
  border: 1px solid rgba(232, 165, 60, 0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-icon i {
  font-size: 24px;
  color: var(--secondary);
}

.step-num {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--secondary);
  background: rgba(232, 165, 60, 0.14);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

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

.process-step p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.66);
}

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

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open {
  background: #fff;
  border-color: rgba(232, 165, 60, 0.5);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  cursor: pointer;
  text-align: left;
  background: transparent;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary-light); }
.faq-question i {
  font-size: 14px;
  color: var(--secondary);
  transition: transform .35s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-item.open .faq-answer {
  max-height: 240px;
}
.faq-answer p {
  padding: 0 26px 22px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
}

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(120deg, rgba(10, 31, 51, 0.92), rgba(15, 42, 70, 0.84)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  color: #fff;
  text-align: center;
}

.cta-inner {
  max-width: 720px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  margin-bottom: 18px;
}
.cta-inner p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 30px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ Footer 页脚 ============ */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, 0.72);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand i { color: var(--secondary); font-size: 22px; }

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
}

.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--secondary);
}

.footer-links li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-links a {
  color: rgba(255, 255, 255, 0.68);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover { color: var(--secondary); }
.footer-links i {
  font-size: 11px;
  color: var(--secondary);
}

.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-domain { color: rgba(255, 255, 255, 0.55); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .section { padding: 70px 0; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .process-step::after { display: none; }
  .intro-grid { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 40px; }

  .header-top { flex-wrap: wrap; }
  .header-actions { display: none; }
  .menu-toggle { display: inline-flex; }

  .main-nav { display: none; }
  .main-nav.nav-open { display: block; }

  .mobile-search { display: block; }

  .nav-wrap {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
  }
  .nav-link {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-left: 3px solid transparent;
    padding: 14px 12px;
  }
  .nav-link.active {
    border-left-color: var(--secondary);
    border-bottom-color: transparent;
  }

  .category-banner { padding: 80px 0 68px; }

  .intro-grid { grid-template-columns: 1fr; }
  .stat-cards { grid-template-columns: 1fr 1fr; }

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

  .news-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .news-num { font-size: 22px; min-width: 30px; }
  .news-meta { flex-direction: row; align-items: center; gap: 18px; text-align: left; }

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

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }

  .search-box input { width: 100%; }

  .stat-cards { grid-template-columns: 1fr; }

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

  .news-item { padding: 20px; }
  .news-meta { flex-wrap: wrap; }

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

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0e2a47;
  --primary-light: #1b3d66;
  --primary-dark: #081c30;
  --accent: #c89b3c;
  --accent-light: #ddb45e;
  --accent-dark: #a87e2a;
  --bg: #f4f6fa;
  --bg-alt: #e9edf3;
  --surface: #ffffff;
  --text: #17212d;
  --text-muted: #65748a;
  --text-light: #93a4b8;
  --border: #dfe5ec;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(14, 42, 71, 0.06);
  --shadow-md: 0 8px 28px rgba(14, 42, 71, 0.10);
  --shadow-lg: 0 18px 50px rgba(14, 42, 71, 0.16);
  --space: 72px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ===== Reset & 基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--accent);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  color: var(--primary);
  font-weight: 700;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all 0.25s ease;
  text-align: center;
}
.btn i {
  font-size: 14px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14, 42, 71, 0.22);
}
.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(14, 42, 71, 0.28);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--accent);
  color: #0e2a47;
  box-shadow: 0 4px 14px rgba(200, 155, 60, 0.28);
}
.btn-accent:hover {
  background: var(--accent-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 155, 60, 0.36);
}
.btn-light {
  background: #ffffff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
}
.btn-light:hover {
  background: #f0eadf;
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-block {
  width: 100%;
}
.btn:focus-visible,
button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(200, 155, 60, 0.5);
  outline-offset: 2px;
}

/* ===== 标签 / 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(4px);
}
.badge-accent {
  background: var(--accent);
  color: var(--primary-dark);
  border: none;
  font-weight: 700;
}
.tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.2s ease;
  margin-right: 8px;
  margin-bottom: 8px;
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-1px);
}
.tag-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-right: 12px;
}

/* ===== 页眉 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  box-shadow: 0 2px 18px rgba(14, 42, 71, 0.08);
  border-bottom: 1px solid var(--border);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.brand i {
  color: var(--accent);
  font-size: 26px;
}
.brand span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 240px;
  padding: 9px 40px 9px 16px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 14px;
  background: var(--bg);
  transition: all 0.25s ease;
}
.search-box input:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(200, 155, 60, 0.14);
  width: 280px;
}
.search-icon {
  position: absolute;
  right: 14px;
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}
.header-cta {
  padding: 9px 24px;
  font-size: 14px;
}
.main-nav {
  background: var(--primary);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-top: 8px;
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.nav-wrap::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.22s ease;
}
.nav-link i {
  font-size: 13px;
  opacity: 0.85;
}
.nav-link:hover {
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
}
.nav-link.active {
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 700;
}
.nav-link.active i {
  color: var(--primary-dark);
}

/* ===== 文章 Hero 横幅 ===== */
.article-hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(8, 28, 48, 0.96) 0%, rgba(14, 42, 71, 0.90) 55%, rgba(27, 61, 102, 0.80) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 84px 0 70px;
  border-bottom: 4px solid var(--accent);
}
.article-hero .container {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #f0e6d2;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}
.article-hero h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  color: #ffffff;
  max-width: 820px;
  line-height: 1.3;
  margin-bottom: 18px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.08);
  padding: 5px 14px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.meta-item i {
  color: var(--accent-light);
  font-size: 13px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 13px 0;
  font-size: 14px;
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb i {
  font-size: 11px;
  color: var(--text-light);
}
.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== 文章主体布局 ===== */
.article-section {
  padding: 56px 0 64px;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 36px;
  align-items: start;
}
.article-main {
  min-width: 0;
}
.article-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  padding: 40px 44px;
  overflow: hidden;
}

/* ===== 文章正文 ===== */
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-content > p {
  margin-bottom: 1.6em;
}
.article-content h2 {
  font-size: 24px;
  margin: 2em 0 1em;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.article-content h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 56px;
  height: 2px;
  background: var(--accent);
}
.article-content h3 {
  font-size: 19px;
  margin: 1.6em 0 0.8em;
}
.article-content ul,
.article-content ol {
  margin: 1em 0 1.6em;
  padding-left: 0;
}
.article-content ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 0.65em;
}
.article-content ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.article-content ol {
  counter-reset: item;
}
.article-content ol li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 0.65em;
  counter-increment: item;
}
.article-content ol li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  line-height: 22px;
}
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 1.8em auto;
  box-shadow: var(--shadow-md);
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.6em 0;
  color: var(--text-muted);
  font-style: italic;
}
.article-content a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--primary);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 14px;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.article-content table tr:nth-child(even) td {
  background: var(--bg);
}

/* ===== 文章标签与分享 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 22px 0 6px;
  margin-top: 30px;
  border-top: 1px solid var(--border);
  gap: 4px;
}
.article-share {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding: 18px 20px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.share-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.share-links {
  display: flex;
  gap: 8px;
}
.share-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 15px;
  transition: all 0.22s ease;
}
.share-links a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ===== 侧边栏 ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
  font-size: 17px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg-alt);
  position: relative;
}
.sidebar-card h3::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 42px;
  height: 2px;
  background: var(--accent);
}
.sidebar-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}
.sidebar-poster {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: none;
  padding: 0;
  background: var(--primary);
  box-shadow: var(--shadow-md);
}
.sidebar-poster img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  opacity: 0.55;
  transition: transform 0.4s ease;
}
.sidebar-poster:hover img {
  transform: scale(1.05);
}
.poster-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 28, 48, 0.92) 0%, rgba(14, 42, 71, 0.55) 60%, rgba(14, 42, 71, 0.1) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px 20px;
  color: #fff;
}
.poster-overlay h4 {
  color: #fff;
  font-size: 18px;
  margin-bottom: 6px;
}
.poster-overlay p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  margin-bottom: 0;
}
.poster-overlay .poster-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 600;
}
.sidebar-list li {
  margin-bottom: 4px;
}
.sidebar-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  transition: all 0.2s ease;
}
.sidebar-list a i {
  font-size: 12px;
  color: var(--accent);
  transition: transform 0.2s ease;
}
.sidebar-list a:hover {
  background: var(--bg);
  color: var(--primary);
  padding-left: 16px;
}
.sidebar-list a:hover i {
  transform: translateX(3px);
}
.sidebar-contact {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border: none;
  color: rgba(255, 255, 255, 0.85);
}
.sidebar-contact h3 {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.15);
}
.sidebar-contact h3::after {
  background: var(--accent);
}
.sidebar-contact p {
  color: rgba(255, 255, 255, 0.75);
}
.contact-email {
  font-size: 14px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.contact-email i {
  color: var(--accent-light);
}

/* ===== 内容未找到 ===== */
.article-not-found {
  text-align: center;
  padding: 60px 20px;
}
.article-not-found i {
  font-size: 54px;
  color: var(--text-light);
  margin-bottom: 18px;
  display: block;
}
.article-not-found h2 {
  font-size: 26px;
  margin-bottom: 12px;
  color: var(--primary);
}
.article-not-found p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 区块标题 ===== */
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.section-head p {
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 56px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  background: #fff;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
  overflow: hidden;
}
.faq-item:hover {
  border-color: rgba(200, 155, 60, 0.4);
  box-shadow: var(--shadow-sm);
}
.faq-item.active {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  gap: 16px;
  transition: color 0.2s;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  color: var(--accent);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question {
  color: var(--primary);
}
.faq-item.active .faq-question i {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0 22px;
}
.faq-item.active .faq-answer {
  max-height: 320px;
  padding: 0 22px 20px;
  border-top: 1px solid var(--bg-alt);
  padding-top: 16px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 相关阅读 ===== */
.related-section {
  padding: 56px 0 64px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: var(--shadow-sm);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.related-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover img {
  transform: scale(1.04);
}
.related-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.related-body h3 a {
  color: var(--primary);
}
.related-body h3 a:hover {
  color: var(--accent);
}
.related-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
  flex: 1;
}
.related-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-link i {
  font-size: 12px;
  transition: transform 0.2s;
}
.related-link:hover i {
  transform: translateX(4px);
}

/* ===== CTA ===== */
.cta-section {
  padding: 50px 0;
  background:
    linear-gradient(120deg, rgba(8, 28, 48, 0.95) 0%, rgba(14, 42, 71, 0.88) 70%, rgba(27, 61, 102, 0.82) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.cta-box {
  text-align: center;
  padding: 30px 20px;
}
.cta-box h2 {
  color: #fff;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  margin-bottom: 12px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.cta-box p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  margin-bottom: 26px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  border-top: 4px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 40px;
  padding: 54px 0 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand i {
  color: var(--accent);
  font-size: 24px;
}
.footer-brand:hover {
  color: var(--accent);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
}
.footer-col-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 10px;
  position: relative;
}
.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--accent);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}
.footer-links a i {
  font-size: 11px;
  color: var(--accent);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-links li {
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}
.footer-links li i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
  text-align: center;
}
.footer-domain {
  color: var(--accent);
  font-weight: 600;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .article-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-card {
    flex: 1 1 calc(50% - 12px);
    min-width: 240px;
  }
  .sidebar-poster {
    flex: 1 1 100%;
  }
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-top {
    flex-direction: column;
    gap: 12px;
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .header-actions {
    width: 100%;
  }
  .search-box {
    flex: 1;
  }
  .search-box input,
  .search-box input:focus {
    width: 100%;
  }
  .header-cta {
    white-space: nowrap;
  }
  .article-card {
    padding: 28px 24px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-hero {
    padding: 60px 0 48px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 28px;
  }
  .breadcrumb .container {
    font-size: 13px;
  }
  .breadcrumb .current {
    max-width: 200px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .brand {
    font-size: 19px;
  }
  .brand i {
    font-size: 22px;
  }
  .header-cta {
    padding: 9px 16px;
    font-size: 13px;
  }
  .header-actions {
    gap: 10px;
    flex-wrap: wrap;
  }
  .search-box {
    flex: 1 1 100%;
    order: -1;
  }
  .nav-link {
    padding: 8px 14px;
    font-size: 13px;
  }
  .article-hero h1 {
    font-size: 23px;
  }
  .hero-meta {
    gap: 8px;
  }
  .meta-item {
    font-size: 12px;
    padding: 4px 10px;
  }
  .article-card {
    padding: 22px 18px;
    border-radius: var(--radius-sm);
  }
  .article-content {
    font-size: 15px;
    line-height: 1.85;
  }
  .article-content h2 {
    font-size: 20px;
  }
  .article-content h3 {
    font-size: 17px;
  }
  .article-share {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .sidebar-card {
    flex: 1 1 100%;
  }
  .cta-section {
    background-attachment: scroll;
  }
  .footer-bottom .container {
    flex-direction: column;
    gap: 4px;
  }
}