/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --dark: #0c1b2c;
  --dark-lighter: #152a42;
  --dark-lightest: #1e3a5f;
  --accent: #c9a45c;
  --accent-dark: #a07e3a;
  --accent-light: #e8d5a8;
  --text: #253341;
  --text-secondary: #6b7a8c;
  --text-on-dark: #e8edf2;
  --border: #e4dfd7;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(12, 27, 44, 0.06);
  --shadow-md: 0 6px 24px rgba(12, 27, 44, 0.08);
  --shadow-lg: 0 16px 40px rgba(12, 27, 44, 0.14);
  --container-w: 1200px;
  --header-h: 76px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input { font: inherit; }
ul, ol { list-style: none; }

/* ===== 容器 ===== */
.container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 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;
  white-space: nowrap;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 4px 14px rgba(201, 164, 92, 0.35);
}
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201, 164, 92, 0.45); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-dark); background: rgba(201, 164, 92, 0.06); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 15px 36px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn:focus-visible { outline: 3px solid rgba(201, 164, 92, 0.5); outline-offset: 2px; }

/* ===== 徽章 / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.5px;
}
.badge-accent { background: rgba(201, 164, 92, 0.15); color: var(--accent-dark); border: 1px solid rgba(201, 164, 92, 0.3); }
.badge-dark { background: rgba(12, 27, 44, 0.1); color: var(--dark); }
.badge-white { background: rgba(255, 255, 255, 0.2); color: #fff; border: 1px solid rgba(255, 255, 255, 0.25); }

/* ===== 区块通用 ===== */
.section { padding: 90px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-overline {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
}
.section-overline::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
}
.section-title { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; color: var(--dark); line-height: 1.3; }
.section-subtitle { font-size: 16px; color: var(--text-secondary); margin-top: 14px; line-height: 1.8; }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(12, 27, 44, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(201, 164, 92, 0.35);
}
.logo-text { font-size: 20px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.main-nav { display: flex; align-items: center; gap: 32px; margin: 0 24px; }
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  padding: 6px 2px;
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { width: 100%; background: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 12px; }

/* ===== 首屏 Hero ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 14, 24, 0.92) 0%, rgba(6, 14, 24, 0.72) 45%, rgba(6, 14, 24, 0.35) 100%);
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 14, 24, 0.2) 0%, transparent 30%, transparent 70%, rgba(6, 14, 24, 0.6) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero-overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  background: rgba(201, 164, 92, 0.12);
  border: 1px solid rgba(201, 164, 92, 0.3);
  padding: 6px 18px;
  border-radius: 40px;
  margin-bottom: 24px;
}
.hero-title {
  font-family: Georgia, 'Songti SC', 'STSong', serif;
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-title .highlight { color: var(--accent); }
.hero-text { font-size: 17px; line-height: 1.9; color: rgba(255, 255, 255, 0.8); max-width: 560px; margin-bottom: 32px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 36px; border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 28px; }
.hero-stat .stat-num {
  font-family: Georgia, 'Songti SC', serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.hero-stat .stat-num em { color: var(--accent); font-style: normal; }
.hero-stat .stat-label { font-size: 13px; color: rgba(255, 255, 255, 0.6); margin-top: 4px; letter-spacing: 0.5px; }
.hero-visual { position: relative; }
.hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  transform: rotate(1deg);
}
.hero-card img { width: 100%; height: 320px; object-fit: cover; }
.hero-card-body { padding: 22px; }
.hero-card-title { font-size: 17px; font-weight: 600; color: #fff; line-height: 1.6; margin-top: 12px; }
.hero-card-text { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 8px; }
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: rgba(255, 255, 255, 0.5);
  font-size: 20px;
  animation: bounceDown 2s infinite;
}
@keyframes bounceDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}

/* ===== 数据条 ===== */
.stats-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
  position: relative;
  z-index: 5;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stats-item { text-align: center; padding: 16px 12px; }
.stats-number { font-family: Georgia, 'Songti SC', serif; font-size: 38px; font-weight: 700; color: var(--dark); line-height: 1.2; }
.stats-number em { color: var(--accent); font-style: normal; font-size: 22px; vertical-align: super; margin-left: 2px; }
.stats-label { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

/* ===== 核心介绍 ===== */
.core-intro { background: var(--bg); }
.core-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.core-media { position: relative; }
.core-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.core-media::before {
  content: '';
  position: absolute;
  top: -16px;
  left: -16px;
  width: 120px;
  height: 120px;
  border: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.5;
}
.core-content { padding: 20px 0; }
.core-content .section-overline { margin-bottom: 10px; }
.core-content h2 { font-size: clamp(1.6rem, 2.5vw, 2.2rem); color: var(--dark); line-height: 1.35; margin-bottom: 18px; }
.core-content > p { color: var(--text-secondary); font-size: 15.5px; line-height: 1.9; margin-bottom: 28px; }
.feature-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
.feature-item { display: flex; gap: 14px; align-items: flex-start; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 18px; transition: var(--transition); }
.feature-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); border-color: rgba(201, 164, 92, 0.4); }
.feature-icon { width: 40px; height: 40px; min-width: 40px; border-radius: 10px; background: rgba(201, 164, 92, 0.12); color: var(--accent-dark); display: flex; align-items: center; justify-content: center; font-size: 17px; }
.feature-text h4 { font-size: 15px; font-weight: 600; color: var(--dark); margin-bottom: 4px; }
.feature-text p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 分类入口 ===== */
.category-entry {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
}
.category-entry::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(12, 27, 44, 0.85);
}
.category-entry .container { position: relative; z-index: 2; }
.category-entry-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.category-entry-content .section-overline { color: var(--accent); }
.category-entry-content .section-overline::before { background: var(--accent); }
.category-entry-content h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); color: #fff; margin-bottom: 18px; line-height: 1.3; }
.category-entry-content p { color: rgba(255, 255, 255, 0.75); font-size: 16px; line-height: 1.9; margin-bottom: 28px; }
.category-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.category-tags .tag {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 30px;
  transition: var(--transition);
}
.category-tags .tag:hover { background: rgba(201, 164, 92, 0.25); border-color: var(--accent); }
.category-card-side { position: relative; }
.category-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(8px);
  text-align: center;
}
.category-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--dark);
  box-shadow: 0 8px 24px rgba(201, 164, 92, 0.4);
}
.category-card h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.category-card p { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.8; margin-bottom: 20px; }
.category-card .btn { margin-top: 8px; }

/* ===== 最新资讯 ===== */
.latest-posts { background: var(--bg); }
.posts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
  height: 100%;
}
.post-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(201, 164, 92, 0.35); }
.post-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.post-category {
  display: inline-flex;
  align-items: center;
  background: rgba(201, 164, 92, 0.12);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 30px;
}
.post-date { font-size: 13px; color: var(--text-secondary); }
.post-card h3 { font-size: 17px; font-weight: 600; color: var(--dark); line-height: 1.5; margin-bottom: 10px; transition: color 0.2s; }
.post-card:hover h3 { color: var(--accent-dark); }
.post-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; flex: 1; }
.post-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent-dark); }
.post-more i { transition: transform 0.2s; }
.post-card:hover .post-more i { transform: translateX(4px); }
.empty-tip {
  text-align: center;
  padding: 60px 20px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 15px;
}

/* ===== 图文交替 ===== */
.feature-switch { background: var(--surface); }
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 80px; }
.feature-block:last-child { margin-bottom: 0; }
.feature-block-alt .feature-block-media { order: 2; }
.feature-block-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.feature-block-media img { width: 100%; height: 360px; object-fit: cover; transition: transform 0.6s ease; }
.feature-block-media:hover img { transform: scale(1.03); }
.feature-block-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(12, 27, 44, 0.3));
}
.feature-block-content { padding: 20px 0; }
.feature-block-content .section-overline { margin-bottom: 10px; }
.feature-block-content h3 { font-size: clamp(1.5rem, 2.2vw, 2rem); color: var(--dark); line-height: 1.35; margin-bottom: 16px; }
.feature-block-content p { color: var(--text-secondary); font-size: 15.5px; line-height: 1.9; margin-bottom: 24px; }
.feature-points { display: flex; flex-wrap: wrap; gap: 12px; }
.feature-points .point {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}
.feature-points .point i { color: var(--accent-dark); font-size: 12px; }

/* ===== 流程步骤 ===== */
.steps-section { background: var(--dark); color: #fff; position: relative; overflow: hidden; }
.steps-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201, 164, 92, 0.15), transparent 70%);
  border-radius: 50%;
}
.steps-section .section-title { color: #fff; }
.steps-section .section-subtitle { color: rgba(255, 255, 255, 0.65); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; z-index: 2; }
.step-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: var(--transition);
  position: relative;
}
.step-item:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-4px); border-color: rgba(201, 164, 92, 0.4); }
.step-number {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--dark);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-item h4 { font-size: 17px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.step-item p { font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.8; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(201, 164, 92, 0.35); box-shadow: var(--shadow-sm); }
.faq-item.active { border-color: rgba(201, 164, 92, 0.5); box-shadow: var(--shadow-md); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--accent-dark); }
.faq-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.faq-item.active .faq-icon { background: var(--accent); border-color: var(--accent); color: var(--dark); transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer-inner { padding: 0 24px 22px; font-size: 14.5px; color: var(--text-secondary); line-height: 1.9; border-top: 1px solid var(--border); margin: 0 24px; padding-top: 16px; padding-left: 0; padding-right: 0; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(12, 27, 44, 0.78); }
.cta-inner { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-inner .section-overline { color: var(--accent); }
.cta-inner .section-overline::before { background: var(--accent); }
.cta-title { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 700; color: #fff; line-height: 1.3; margin-bottom: 16px; }
.cta-text { font-size: 16px; color: rgba(255, 255, 255, 0.75); line-height: 1.9; margin-bottom: 32px; }

/* ===== 页脚 ===== */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, 0.6); padding: 60px 0 90px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { font-size: 20px; }
.footer-desc { font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, 0.55); max-width: 340px; }
.footer-col h5 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(255, 255, 255, 0.55); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { font-size: 14px; line-height: 2; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== 移动端底部 Tab ===== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  background: rgba(12, 27, 44, 0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 16px calc(8px + env(safe-area-inset-bottom, 0px));
  justify-content: space-around;
}
.tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 20px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
  position: relative;
}
.tabbar-item.active { color: var(--accent); }
.tabbar-item.active::before {
  content: '';
  position: absolute;
  top: -8px;
  width: 24px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.tabbar-icon { font-size: 20px; }
.tabbar-label { font-size: 12px; font-weight: 500; }

/* ===== 移动端响应式 ===== */
@media (min-width: 769px) {
  .mobile-header { display: none !important; }
}

@media (max-width: 1024px) {
  .section { padding: 70px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding-top: 130px; }
  .hero-visual { max-width: 480px; }
  .core-grid { gap: 40px; }
  .category-entry-inner { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .site-header { display: none; }
  .mobile-header {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 62px;
    background: rgba(12, 27, 44, 0.97);
    backdrop-filter: blur(12px);
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .mobile-header .logo-mark { width: 32px; height: 32px; font-size: 17px; border-radius: 8px; }
  .mobile-header .logo-text { font-size: 18px; }
  .mobile-menu-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
  }
  .mobile-menu-btn:hover { background: rgba(201, 164, 92, 0.2); }
  .mobile-menu-panel {
    position: fixed;
    top: 62px;
    left: 0;
    right: 0;
    background: rgba(12, 27, 44, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 20px;
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 8px;
    backdrop-filter: blur(16px);
  }
  .mobile-menu-panel.open { display: flex; }
  .mobile-menu-panel a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
  }
  .mobile-menu-panel a i { width: 20px; text-align: center; color: var(--accent); }
  .mobile-menu-panel a:hover,
  .mobile-menu-panel a.active { background: rgba(201, 164, 92, 0.12); color: var(--accent); }
  .mobile-tabbar { display: flex; }
  .site-footer { padding: 48px 0 90px; }
  .hero { min-height: auto; padding: 80px 0 60px; }
  .hero-inner { padding-top: 100px; }
  .hero-title { font-size: 2.1rem; }
  .hero-stats { gap: 24px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .core-grid { grid-template-columns: 1fr; gap: 36px; }
  .posts-grid { grid-template-columns: 1fr; gap: 18px; }
  .feature-block { grid-template-columns: 1fr; gap: 32px; margin-bottom: 56px; }
  .feature-block-alt .feature-block-media { order: 0; }
  .feature-block-media img { height: 240px; }
  .steps-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .step-item { padding: 20px 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
  .category-entry { padding: 56px 0; background-attachment: scroll; }
  .cta-section { padding: 60px 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.8rem; }
  .hero-text { font-size: 15px; }
  .btn { padding: 10px 22px; font-size: 14px; }
  .btn-lg { padding: 13px 28px; font-size: 15px; }
  .hero-card img { height: 220px; }
  .stats-number { font-size: 30px; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-item { text-align: center; }
  .step-number { margin: 0 auto 16px; }
  .feature-points .point { font-size: 12px; padding: 5px 12px; }
  .post-card { padding: 20px; }
  .faq-question { padding: 16px 18px; font-size: 14.5px; }
  .faq-answer-inner { font-size: 14px; }
  .tabbar-item { padding: 6px 14px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .hero-buttons .btn { justify-content: center; }
  .category-tags { justify-content: center; }
  .category-entry-content { text-align: center; }
  .category-entry-content .section-overline::before { display: none; }
}

/* ===== 可访问性 ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(201, 164, 92, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(12, 27, 44, 0.25); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(201, 164, 92, 0.6); }

/* roulang page: article */
:root {
    --primary: #0e7a6d;
    --primary-dark: #065f56;
    --primary-light: #d5f0ec;
    --secondary: #e8873c;
    --accent: #f59e0b;
    --bg: #f7f9f8;
    --surface: #ffffff;
    --text: #1e2a2a;
    --text-light: #5f6e6c;
    --border: #e2e8e4;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow-sm: 0 2px 10px rgba(12, 60, 50, 0.06);
    --shadow-md: 0 14px 36px rgba(12, 60, 50, 0.10);
    --shadow-lg: 0 28px 64px rgba(12, 60, 50, 0.16);
    --transition: all 0.3s ease;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  a { text-decoration: none; color: inherit; transition: var(--transition); }
  img { max-width: 100%; height: auto; display: block; }
  ul, ol { list-style: none; }
  button { font-family: inherit; cursor: pointer; }
  input, textarea { font-family: inherit; }

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

  /* 按钮 */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.2;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(14, 122, 109, 0.28);
  }
  .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(14, 122, 109, 0.34);
  }
  .btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
  }
  .btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
  }
  .btn-white {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  }
  .btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
  }
  .btn:focus-visible {
    outline: 3px solid rgba(14, 122, 109, 0.4);
    outline-offset: 3px;
  }

  /* 徽章 */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary-dark);
  }
  .badge-warm {
    background: #fff5eb;
    color: var(--secondary);
  }
  .badge-dark {
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }

  /* 卡片 */
  .card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 228, 0.7);
    overflow: hidden;
    transition: var(--transition);
  }
  .card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
  }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }
  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--text);
  }
  .logo-mark {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 13px;
    font-size: 21px;
    box-shadow: 0 6px 16px rgba(14, 122, 109, 0.3);
  }
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 34px;
  }
  .nav-link {
    position: relative;
    padding: 28px 2px 22px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
    transition: var(--transition);
  }
  .nav-link:hover { color: var(--primary); }
  .nav-link:hover::after { width: 100%; }
  .nav-link.active { color: var(--primary); }
  .nav-link.active::after { width: 100%; }

  .mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    color: var(--text);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }
  .mobile-menu-btn:hover { border-color: var(--primary); color: var(--primary); }

  /* 移动抽屉 */
  .mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100%;
    background: #fff;
    z-index: 70;
    box-shadow: -12px 0 40px rgba(0, 0, 0, 0.12);
    transition: right 0.35s ease;
    padding: 24px;
    display: flex;
    flex-direction: column;
  }
  .mobile-drawer.open { right: 0; }
  .drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 65;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
  }
  .drawer-mask.open { opacity: 1; visibility: visible; }
  .drawer-link {
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .drawer-link:hover { background: var(--primary-light); color: var(--primary-dark); }
  .drawer-link.active { background: var(--primary-light); color: var(--primary-dark); }

  /* 文章 Hero */
  .article-hero {
    position: relative;
    padding: 76px 0 90px;
    background-size: cover;
    background-position: center;
    background-image: linear-gradient(135deg, rgba(6, 95, 86, 0.92), rgba(14, 122, 109, 0.78)), url('/assets/images/backpic/back-2.png');
    color: #fff;
  }
  .article-hero .container { position: relative; z-index: 2; }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 22px;
  }
  .breadcrumb a:hover { color: #fff; }
  .breadcrumb i { font-size: 12px; opacity: 0.7; }
  .article-title {
    font-size: clamp(28px, 4vw, 46px);
    font-weight: 800;
    line-height: 1.3;
    max-width: 780px;
    margin: 16px 0 20px;
    letter-spacing: -0.02em;
  }
  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.82);
  }
  .article-meta span { display: inline-flex; align-items: center; gap: 7px; }

  /* 文章主体 */
  .article-shell { margin-top: -50px; position: relative; z-index: 5; }
  .article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 36px;
    align-items: start;
  }
  .article-main-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 42px;
    border: 1px solid rgba(226, 232, 228, 0.6);
  }
  .article-cover {
    border-radius: calc(var(--radius) - 6px);
    overflow: hidden;
    margin-bottom: 30px;
  }
  .article-cover img { width: 100%; }

  .article-body { font-size: 16.5px; color: #2d3a3a; }
  .article-body > * + * { margin-top: 1.2em; }
  .article-body h2 {
    font-size: 26px;
    font-weight: 700;
    margin-top: 1.6em;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
  }
  .article-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin-top: 1.4em;
    color: var(--primary-dark);
  }
  .article-body p { line-height: 1.9; }
  .article-body a { color: var(--primary); font-weight: 600; border-bottom: 1px solid transparent; }
  .article-body a:hover { border-color: var(--primary); }
  .article-body ul, .article-body ol { padding-left: 24px; }
  .article-body ul li { list-style: disc; margin: 0.4em 0; }
  .article-body ol li { list-style: decimal; margin: 0.4em 0; }
  .article-body img { border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
  .article-body blockquote {
    margin: 1.6em 0;
    padding: 18px 24px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
    color: var(--primary-dark);
    font-size: 16px;
  }
  .article-body table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  .article-body th, .article-body td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
  }
  .article-body th { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }

  /* 分享 */
  .article-share {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 38px;
    padding-top: 26px;
    border-top: 1px solid var(--border);
  }
  .share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 14px;
    color: var(--text-light);
    background: #fff;
    transition: var(--transition);
  }
  .share-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); }

  /* 侧边栏 */
  .sidebar-sticky { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 24px; }
  .side-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 228, 0.6);
  }
  .side-card h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .side-card h4 i { color: var(--primary); }
  .side-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: var(--text-light);
    font-size: 14.5px;
    border-bottom: 1px dashed var(--border);
    transition: var(--transition);
  }
  .side-link:last-child { border-bottom: none; }
  .side-link i { color: var(--primary); font-size: 13px; }
  .side-link:hover { color: var(--primary); padding-left: 6px; }
  .side-promo {
    position: relative;
    border-radius: calc(var(--radius) - 4px);
    overflow: hidden;
    min-height: 180px;
    display: flex;
    align-items: flex-end;
    padding: 22px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.78)), url('/assets/images/coverpic/cover-3.png') center/cover;
    color: #fff;
  }
  .side-promo .promo-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
  .side-promo .promo-text { font-size: 13px; opacity: 0.85; }

  /* 相关阅读 */
  .related-section { padding: 72px 0 0; }
  .section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
  .section-head .subtitle { color: var(--secondary); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; margin-bottom: 8px; }
  .section-head h2 { font-size: clamp(26px, 3.5vw, 40px); font-weight: 800; line-height: 1.3; }
  .section-head p { color: var(--text-light); margin-top: 12px; }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .topic-card .card-media { position: relative; overflow: hidden; aspect-ratio: 16/10; }
  .topic-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
  .topic-card:hover .card-media img { transform: scale(1.06); }
  .topic-card .card-media .badge { position: absolute; top: 14px; left: 14px; }
  .topic-card .card-body { padding: 24px; }
  .topic-card .card-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
  .topic-card .card-body h3 a:hover { color: var(--primary); }
  .topic-card .card-body p { font-size: 14px; color: var(--text-light); margin-bottom: 14px; }
  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
  }
  .card-link i { transition: transform 0.3s; }
  .card-link:hover i { transform: translateX(5px); }

  /* FAQ */
  .faq-section { padding: 80px 0; }
  .faq-list { max-width: 850px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
  }
  .faq-item:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
  .faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 20px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
  }
  .faq-question i { color: var(--primary); transition: transform 0.3s; font-size: 14px; }
  .faq-item.open .faq-question i { transform: rotate(180deg); }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    color: var(--text-light);
    font-size: 15px;
  }
  .faq-answer p { padding-bottom: 20px; line-height: 1.8; }
  .faq-item.open .faq-answer { max-height: 600px; }

  /* CTA */
  .cta-section {
    padding: 0 0 80px;
  }
  .cta-box {
    position: relative;
    border-radius: 28px;
    padding: 60px 50px;
    background: linear-gradient(120deg, rgba(6, 95, 86, 0.94), rgba(14, 122, 109, 0.86)), url('/assets/images/backpic/back-3.png') center/cover;
    color: #fff;
    text-align: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
  }
  .cta-box h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; margin-bottom: 14px; }
  .cta-box p { max-width: 560px; margin: 0 auto 30px; opacity: 0.9; }
  .cta-box .btn { font-size: 16px; padding: 14px 32px; }

  /* 页脚 */
  .site-footer {
    background: #0c1f1c;
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 100px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .footer-brand .logo { color: #fff; margin-bottom: 16px; }
  .footer-brand .logo-mark { background: linear-gradient(135deg, #14b8a6, #0d9488); }
  .footer-desc { font-size: 14px; line-height: 1.8; max-width: 340px; margin-top: 12px; }
  .footer-col h5 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
  .footer-col ul li { margin-bottom: 10px; }
  .footer-col ul li a { font-size: 14px; color: rgba(255, 255, 255, 0.65); }
  .footer-col ul li a:hover { color: #2dd4bf; padding-left: 4px; }
  .footer-contact p { font-size: 14px; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
  .footer-contact i { color: #2dd4bf; }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 28px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
  }
  .footer-bottom i { color: #f472b6; }

  /* 移动端底部 Tab */
  .mobile-tabbar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.06);
    padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  }
  .tabbar-inner { display: flex; justify-content: space-around; align-items: center; max-width: 480px; margin: 0 auto; }
  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border-radius: 14px;
    color: var(--text-light);
    font-size: 11px;
    font-weight: 600;
    transition: var(--transition);
  }
  .tab-item i { font-size: 19px; }
  .tab-item:hover { color: var(--primary); background: var(--primary-light); }
  .tab-item.active { color: var(--primary); }
  .tab-item.active i { transform: translateY(-2px); }

  /* 未找到 */
  .notfound-box {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
    padding: 70px 40px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
  }
  .notfound-box .nf-icon {
    width: 84px;
    height: 84px;
    margin: 0 auto 24px;
    display: grid;
    place-items: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    font-size: 34px;
  }
  .notfound-box h1 { font-size: 28px; font-weight: 800; margin-bottom: 12px; }
  .notfound-box p { color: var(--text-light); margin-bottom: 28px; }

  /* 响应式 */
  @media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; }
    .sidebar-sticky { position: static; flex-direction: row; flex-wrap: wrap; }
    .sidebar-sticky .side-card { flex: 1; min-width: 260px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
  }

  @media (max-width: 768px) {
    .desktop-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .mobile-tabbar { display: block; }
    .site-header .container { display: flex; justify-content: space-between; align-items: center; height: 64px; }
    .article-hero { padding: 56px 0 80px; }
    .article-main-card { padding: 26px 20px; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-box { padding: 44px 24px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .article-title { font-size: 26px; }
    .faq-question { font-size: 15px; }
  }

  @media (max-width: 520px) {
    .container { padding: 0 18px; }
    .article-main-card { padding: 20px 16px; }
    .article-body { font-size: 15.5px; }
    .related-grid { gap: 18px; }
    .article-share { gap: 10px; }
    .share-btn { padding: 8px 14px; font-size: 13px; }
    .tab-item { padding: 6px 10px; }
  }

  @media (min-width: 769px) {
    .mobile-tabbar { display: none !important; }
  }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #16263e;
            --primary-light: #273b5c;
            --primary-dark: #0e1a2b;
            --accent: #c9a961;
            --accent-dark: #a8873e;
            --bg: #f5f7fa;
            --bg-white: #ffffff;
            --bg-deep: #0f1b2d;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: rgba(255, 255, 255, .92);
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(22, 38, 62, .08);
            --shadow-lg: 0 16px 48px rgba(22, 38, 62, .14);
            --transition: all .3s ease;
            --container: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media(max-width:768px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 96px 0;
        }
        .section-sm {
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            letter-spacing: .12em;
            color: var(--accent-dark);
            text-transform: uppercase;
            font-weight: 700;
            margin-bottom: 12px;
            background: rgba(201, 169, 97, .12);
            padding: 4px 16px;
            border-radius: 999px;
        }
        .section-head h2 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.7;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-primary {
            background: var(--accent);
            color: #111;
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201, 169, 97, .35);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .1);
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(22, 38, 62, .3);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        /* ===== 导航 (桌面) ===== */
        .desktop-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, .7);
            display: none;
        }
        .desktop-header .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent);
            font-size: 20px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .02em;
        }
        .desktop-nav {
            display: flex;
            gap: 4px;
        }
        .desktop-nav .nav-link {
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }
        .desktop-nav .nav-link:hover {
            background: rgba(22, 38, 62, .06);
            color: var(--primary);
        }
        .desktop-nav .nav-link.active {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 移动顶部 Header ===== */
        .mobile-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            height: 60px;
            border-bottom: 1px solid rgba(226, 232, 240, .8);
        }
        .mobile-header .logo-mark {
            width: 36px;
            height: 36px;
            font-size: 17px;
        }
        .mobile-header .logo-text {
            font-size: 18px;
        }
        .mobile-menu-btn {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(22, 38, 62, .06);
            color: var(--primary);
            font-size: 18px;
            transition: var(--transition);
        }
        .mobile-menu-btn:active {
            background: rgba(22, 38, 62, .12);
        }

        /* ===== 移动抽屉 ===== */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 27, 45, .5);
            z-index: 199;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 320px;
            height: 100vh;
            background: #fff;
            z-index: 200;
            padding: 24px;
            box-shadow: -20px 0 60px rgba(0, 0, 0, .15);
            transition: right .35s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(22, 38, 62, .06);
            color: var(--primary);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .drawer-close:hover {
            background: rgba(22, 38, 62, .1);
        }
        .drawer-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .drawer-link {
            padding: 14px 18px;
            border-radius: 14px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
        }
        .drawer-link i {
            width: 22px;
            text-align: center;
            color: var(--text-light);
            font-size: 16px;
        }
        .drawer-link:hover {
            background: rgba(22, 38, 62, .05);
        }
        .drawer-link.active {
            background: var(--primary);
            color: #fff;
        }
        .drawer-link.active i {
            color: var(--accent);
        }

        /* ===== 底部 Tab ===== */
        .mobile-bottom-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 99;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-around;
            align-items: center;
            height: 64px;
            padding-bottom: env(safe-area-inset-bottom);
        }
        .mobile-bottom-tab .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            flex: 1;
            color: var(--text-light);
            font-size: 12px;
            font-weight: 600;
            transition: var(--transition);
            padding: 8px 0;
            position: relative;
        }
        .mobile-bottom-tab .tab-item i {
            font-size: 19px;
            transition: var(--transition);
        }
        .mobile-bottom-tab .tab-item.active {
            color: var(--primary);
        }
        .mobile-bottom-tab .tab-item.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 3px;
            border-radius: 0 0 6px 6px;
            background: var(--accent);
        }
        .mobile-bottom-tab .tab-item.menu-trigger {
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 160px 0 100px;
            overflow: hidden;
            color: #fff;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: .18;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(201, 169, 97, .15);
            filter: blur(60px);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, .7);
            background: rgba(255, 255, 255, .08);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            font-size: 10px;
        }
        .category-hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            max-width: 700px;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .category-hero .lead {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .8);
            max-width: 620px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 64px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, .12);
        }
        .hero-stats .stat {
            text-align: center;
        }
        .hero-stats .stat .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
        }
        .hero-stats .stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
            margin-top: 4px;
        }

        /* ===== 玩法总览卡片 ===== */
        .overview-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .overview-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .overview-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .overview-card .card-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .overview-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .overview-card:hover .card-img img {
            transform: scale(1.05);
        }
        .overview-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(22, 38, 62, .35), transparent 60%);
        }
        .overview-card .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }
        .overview-card .card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .overview-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .overview-card .card-body p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-light);
            flex: 1;
        }
        .overview-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .badge-list {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(22, 38, 62, .06);
            color: var(--primary);
        }
        .card-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
        }
        .card-link:hover {
            color: var(--primary);
        }

        /* ===== 攻略文章列表 ===== */
        .article-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .article-card .article-thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .article-card .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .article-card:hover .article-thumb img {
            transform: scale(1.05);
        }
        .article-card .article-meta {
            display: flex;
            gap: 8px;
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            flex-wrap: wrap;
        }
        .article-card .article-meta .badge {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(8px);
        }
        .article-card .article-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .article-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .article-card .article-body h3 a:hover {
            color: var(--accent-dark);
        }
        .article-card .article-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }
        .article-card .article-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: #94a3b8;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .article-card .article-foot span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .article-foot i {
            font-size: 12px;
        }

        /* ===== 学习路径 ===== */
        .path-section {
            background: var(--bg-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .path-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 169, 97, .1);
            filter: blur(60px);
        }
        .path-section .section-head h2 {
            color: #fff;
        }
        .path-section .section-head p {
            color: rgba(255, 255, 255, .6);
        }
        .path-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }
        .path-step {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }
        .path-step:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
            border-color: rgba(201, 169, 97, .4);
        }
        .path-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: var(--accent);
            color: #111;
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .path-step h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .path-step p {
            font-size: 14px;
            line-height: 1.65;
            color: rgba(255, 255, 255, .65);
        }
        .path-step .step-icon {
            display: block;
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        /* ===== 数据洞察 ===== */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .insight-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .insight-card .num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .insight-card .num span {
            color: var(--accent);
        }
        .insight-card .label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 10px;
        }
        .insight-card .icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 14px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(201, 169, 97, .4);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(22, 38, 62, .06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon {
            background: var(--accent);
            color: #111;
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 28px 24px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: .12;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .75);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f1b2d;
            color: rgba(255, 255, 255, .7);
            padding: 72px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 18px;
        }
        .footer-brand .logo-mark {
            background: rgba(255, 255, 255, .1);
            color: var(--accent);
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .5);
            max-width: 360px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: .04em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        .footer-bottom i {
            color: var(--accent);
        }

        /* ===== 响应式断点 ===== */
        @media(max-width:1024px) {
            .overview-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .article-list {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .insight-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
            .path-grid {
                gap: 20px;
            }
        }
        @media(max-width:768px) {
            .section {
                padding: 60px 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .desktop-header {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            body {
                padding-bottom: 64px;
            }
            .category-hero {
                padding: 120px 0 64px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .lead {
                font-size: 15px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                margin-top: 40px;
                padding-top: 28px;
            }
            .overview-cards {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .article-list {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .path-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .insight-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media(max-width:520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .insight-grid {
                grid-template-columns: 1fr;
            }
            .overview-card .card-img {
                height: 180px;
            }
            .article-card .article-thumb {
                height: 180px;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }
        @media(min-width:769px) {
            .desktop-header {
                display: block;
            }
            .mobile-header {
                display: none;
            }
            .mobile-bottom-tab {
                display: none;
            }
            body {
                padding-bottom: 0;
            }
        }