/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --primary-light: #fbbf24;
  --secondary: #1e1b4b;
  --secondary-light: #312e81;
  --accent: #ef4444;
  --bg-dark: #0f0e1a;
  --bg-sidebar: #14122a;
  --bg-main: #f8f7fc;
  --bg-card: #ffffff;
  --bg-card-alt: #f1f0f8;
  --text-primary: #1f1b3a;
  --text-secondary: #4b476b;
  --text-light: #8b87a3;
  --text-white: #ffffff;
  --border-color: #e5e3ef;
  --border-light: #f0eff5;
  --shadow-sm: 0 2px 8px rgba(30, 27, 75, 0.06);
  --shadow-md: 0 8px 24px rgba(30, 27, 75, 0.10);
  --shadow-lg: 0 16px 48px rgba(30, 27, 75, 0.14);
  --shadow-glow: 0 0 30px rgba(245, 158, 11, 0.25);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --sidebar-width: 260px;
  --header-height: 64px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-main);
  display: flex;
  min-height: 100vh;
}

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

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-sidebar); }
::-webkit-scrollbar-thumb { background: var(--primary-dark); border-radius: 3px; }

/* ===== 左侧边栏 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  color: var(--text-white);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
  border-right: 1px solid rgba(255,255,255,0.04);
  transition: transform var(--transition);
}

.sidebar-brand {
  padding: 28px 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 14px;
}

.sidebar-brand .logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #0f0e1a;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.sidebar-brand .logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  padding: 20px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-nav .nav-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.3);
  padding: 12px 12px 8px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.65);
  transition: all var(--transition);
  position: relative;
}

.sidebar-nav a i {
  width: 22px;
  font-size: 18px;
  text-align: center;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}

.sidebar-nav a:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-white);
}

.sidebar-nav a:hover i {
  color: var(--primary-light);
}

.sidebar-nav a.active {
  background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(245,158,11,0.05));
  color: var(--primary-light);
  box-shadow: inset 3px 0 0 var(--primary);
}

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

.sidebar-nav a .badge {
  margin-left: auto;
  background: var(--accent);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.sidebar-footer {
  padding: 20px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  text-align: center;
  line-height: 1.6;
}

/* ===== 移动端顶部栏 ===== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-sidebar);
  z-index: 999;
  padding: 0 20px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-header .logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mobile-header .menu-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.mobile-header .menu-toggle:hover {
  background: rgba(255,255,255,0.12);
}

.mobile-header .menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-header .menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-header .menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-header .menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 主内容区 ===== */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f0e1a 0%, #1a1740 50%, #0f0e1a 100%);
  overflow: hidden;
  padding: 120px 32px 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.25;
  mix-blend-mode: screen;
  animation: heroParallax 20s ease infinite alternate;
}

@keyframes heroParallax {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.05) translate(-10px, -10px); }
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(245,158,11,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(245,158,11,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,14,26,0.4) 0%, rgba(15,14,26,0.8) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  animation: heroFadeIn 1.2s ease forwards;
}

@keyframes heroFadeIn {
  0% { opacity: 0; transform: translateY(40px); }
  100% { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.2);
  color: var(--primary-light);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.hero-badge i {
  font-size: 14px;
}

.hero-title {
  font-size: clamp(36px, 7vw, 68px);
  font-weight: 900;
  line-height: 1.05;
  color: var(--text-white);
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--primary-light), var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2.2vw, 22px);
  color: rgba(255,255,255,0.6);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
  font-weight: 400;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0f0e1a;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  box-shadow: 0 8px 32px rgba(245,158,11,0.35);
  transition: all var(--transition);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(245,158,11,0.45);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: rgba(255,255,255,0.06);
  color: var(--text-white);
  font-size: 16px;
  font-weight: 600;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 60px;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
  color: var(--text-white);
}

.hero-stat .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-top: 4px;
  font-weight: 500;
}

/* ===== 板块通用 ===== */
.section {
  padding: 80px 0;
}

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

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  background: rgba(245,158,11,0.08);
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 特色板块 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

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

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(245,158,11,0.15);
}

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

.feature-card .icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(245,158,11,0.12), rgba(245,158,11,0.04));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
  transition: transform var(--transition);
}

.feature-card:hover .icon {
  transform: scale(1.05);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(245,158,11,0.15);
}

.category-card .card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.category-card:hover .card-img {
  transform: scale(1.03);
}

.category-card .card-body {
  padding: 24px 24px 28px;
}

.category-card .card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.category-card .card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.category-card .card-body .btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition);
}

.category-card .card-body .btn-text:hover {
  gap: 12px;
}

/* ===== 最新资讯 ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
}

.news-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(245,158,11,0.12);
  transform: translateX(4px);
}

.news-item .tag {
  flex-shrink: 0;
  padding: 4px 14px;
  background: rgba(245,158,11,0.08);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
  white-space: nowrap;
}

.news-item .title {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item .meta {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-light);
  white-space: nowrap;
}

.news-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-light);
  font-size: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-color);
}

/* ===== 流程步骤 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step-card {
  text-align: center;
  padding: 36px 20px 32px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  position: relative;
  transition: all var(--transition);
}

.step-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}

.step-card .step-num {
  counter-increment: step;
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #0f0e1a;
  box-shadow: 0 4px 16px rgba(245,158,11,0.25);
}

.step-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 热门推荐 ===== */
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.recommend-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.recommend-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(245,158,11,0.12);
}

.recommend-card .card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.recommend-card:hover .card-img {
  transform: scale(1.03);
}

.recommend-card .card-body {
  padding: 24px;
}

.recommend-card .card-body .badge {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(239,68,68,0.08);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 10px;
}

.recommend-card .card-body h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.recommend-card .card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.recommend-card .card-body .meta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-light);
}

.recommend-card .card-body .meta-row i {
  margin-right: 4px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-item:hover {
  border-color: rgba(245,158,11,0.12);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition);
  gap: 16px;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
}

.faq-question:hover {
  background: rgba(245,158,11,0.03);
}

.faq-question i {
  font-size: 16px;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--bg-sidebar) 0%, #1a1740 100%);
  padding: 80px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(245,158,11,0.06) 0%, transparent 70%);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.55);
  max-width: 560px;
  margin: 0 auto 32px;
}

.cta-section .btn-primary {
  font-size: 17px;
  padding: 18px 44px;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.5);
  padding: 48px 32px 32px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}

.footer h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

.footer ul li {
  margin-bottom: 10px;
}

.footer ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}

.footer ul li a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 24px;
  margin-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.3);
}

/* ===== 移动端遮罩 ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.sidebar-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .hero {
    min-height: 70vh;
    padding: 100px 24px 60px;
  }
  .hero-stats {
    gap: 28px;
  }
  .footer .container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .mobile-header {
    display: flex;
  }
  .main-content {
    margin-left: 0;
    padding-top: var(--header-height);
  }
  .sidebar-overlay {
    display: block;
  }
  .hero {
    min-height: 60vh;
    padding: 80px 20px 48px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-stats {
    gap: 20px;
    margin-top: 36px;
  }
  .hero-stat .num {
    font-size: 26px;
  }
  .section {
    padding: 56px 0;
  }
  .section-header {
    margin-bottom: 36px;
  }
  .features-grid,
  .category-grid,
  .recommend-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }
  .news-item {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 18px;
  }
  .news-item .title {
    -webkit-line-clamp: 2;
    font-size: 15px;
    flex: 1 1 100%;
    order: -1;
  }
  .news-item .meta {
    font-size: 12px;
  }
  .footer .container {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .cta-section {
    padding: 56px 20px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero {
    padding: 72px 16px 40px;
    min-height: auto;
  }
  .hero-title {
    font-size: 26px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 24px;
  }
  .section-desc {
    font-size: 15px;
  }
  .feature-card {
    padding: 28px 20px;
  }
  .category-card .card-body {
    padding: 18px 20px 22px;
  }
  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 18px;
    font-size: 14px;
  }
  .faq-item.active .faq-answer {
    padding: 0 18px 16px;
  }
  .btn-primary, .btn-secondary {
    padding: 14px 28px;
    font-size: 15px;
    width: 100%;
    justify-content: center;
  }
}

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

/* roulang page: article */
:root {
  --primary: #1a1a2e;
  --primary-light: #16213e;
  --secondary: #e94560;
  --accent: #f5a623;
  --accent-glow: #f5a62333;
  --bg-dark: #0f0f1a;
  --bg-card: #1e1e3a;
  --bg-card-hover: #2a2a4a;
  --bg-light: #f8f9fc;
  --text-white: #f0f0f5;
  --text-light: #c0c0d0;
  --text-muted: #8888a0;
  --text-dark: #1a1a2e;
  --border-color: #2a2a4a;
  --border-light: #e0e0e8;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(233,69,96,0.15);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --sidebar-width: 260px;
  --header-height: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; outline: none; border: none; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
/* App Shell */
.app-shell { display: flex; min-height: 100vh; }
/* Sidebar */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-width);
  background: var(--primary); border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column; z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto; overflow-x: hidden;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 14px; padding: 28px 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.logo-icon {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; font-weight: 800;
  box-shadow: 0 4px 16px rgba(233,69,96,0.3);
}
.logo-text { font-size: 22px; font-weight: 700; color: var(--text-white); letter-spacing: -0.5px; }
.logo-text em { font-style: normal; color: var(--secondary); }
.sidebar-nav { padding: 16px 12px; flex: 1; }
.nav-label { font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); padding: 12px 16px 8px; font-weight: 600; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 14px; padding: 12px 16px;
  border-radius: var(--radius-sm); color: var(--text-light); font-size: 15px; font-weight: 500;
  transition: var(--transition); position: relative; margin-bottom: 2px;
}
.sidebar-nav a i { width: 20px; text-align: center; font-size: 16px; color: var(--text-muted); transition: var(--transition); }
.sidebar-nav a:hover { background: rgba(255,255,255,0.06); color: var(--text-white); }
.sidebar-nav a:hover i { color: var(--accent); }
.sidebar-nav a.active { background: rgba(233,69,96,0.12); color: var(--secondary); }
.sidebar-nav a.active i { color: var(--secondary); }
.sidebar-nav a .badge {
  margin-left: auto; font-size: 10px; background: var(--secondary); color: #fff;
  padding: 2px 10px; border-radius: 20px; font-weight: 600; letter-spacing: 0.3px;
}
.sidebar-footer {
  padding: 20px 24px; border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px; color: var(--text-muted); text-align: center;
}
/* Main Content */
.main-content {
  margin-left: var(--sidebar-width); flex: 1; min-width: 0;
  display: flex; flex-direction: column;
}
/* Article Header */
.article-header {
  position: relative; padding: 80px 0 60px; overflow: hidden;
  background: var(--primary);
}
.article-header-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.25; mix-blend-mode: overlay;
}
.article-header-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(15,15,26,0.92) 0%, rgba(26,26,46,0.7) 50%, rgba(233,69,96,0.15) 100%);
}
.article-header .container { position: relative; z-index: 2; }
.article-category {
  display: inline-block; padding: 5px 18px; border-radius: 20px;
  background: rgba(233,69,96,0.2); color: var(--secondary); font-size: 13px; font-weight: 600;
  margin-bottom: 20px; border: 1px solid rgba(233,69,96,0.25);
}
.article-header h1 {
  font-size: 40px; font-weight: 800; color: var(--text-white); line-height: 1.25;
  max-width: 900px; margin-bottom: 20px; letter-spacing: -0.5px;
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 20px; align-items: center;
  font-size: 14px; color: var(--text-muted);
}
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); font-size: 14px; }
/* Breadcrumb */
.breadcrumb {
  padding: 20px 0; background: var(--bg-light); border-bottom: 1px solid var(--border-light);
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-muted); flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { color: #ccc; }
.breadcrumb .current { color: var(--text-dark); font-weight: 500; }
/* Article Content */
.article-content-wrap {
  background: var(--bg-light); padding: 48px 0 60px; flex: 1;
}
.article-body {
  max-width: 820px; margin: 0 auto; background: #fff; border-radius: var(--radius);
  padding: 48px 56px; box-shadow: 0 2px 20px rgba(0,0,0,0.04); color: var(--text-dark);
  font-size: 17px; line-height: 1.9;
}
.article-body img { border-radius: var(--radius-sm); margin: 32px 0; width: 100%; }
.article-body h2 { font-size: 26px; font-weight: 700; margin: 40px 0 16px; color: var(--primary); }
.article-body h3 { font-size: 20px; font-weight: 600; margin: 32px 0 12px; color: var(--primary); }
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 16px 0 24px; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--secondary); background: rgba(233,69,96,0.05);
  padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic; color: #555;
}
.article-body a { color: var(--secondary); text-decoration: underline; }
.article-body a:hover { color: var(--accent); }
/* Not Found */
.not-found-wrap {
  text-align: center; padding: 80px 24px; background: var(--bg-light); flex: 1;
  display: flex; align-items: center; justify-content: center;
}
.not-found-card {
  background: #fff; border-radius: var(--radius); padding: 60px 48px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.04); max-width: 520px; width: 100%;
}
.not-found-card i { font-size: 56px; color: var(--text-muted); margin-bottom: 20px; }
.not-found-card h2 { font-size: 24px; color: var(--text-dark); margin-bottom: 12px; }
.not-found-card p { color: var(--text-muted); margin-bottom: 24px; }
.not-found-card .btn { display: inline-block; }
/* Tags */
.article-tags {
  padding: 32px 0 8px; border-top: 1px solid var(--border-light); margin-top: 40px;
}
.article-tags .tag {
  display: inline-block; padding: 5px 16px; border-radius: 20px;
  background: rgba(233,69,96,0.08); color: var(--secondary); font-size: 13px; font-weight: 500;
  margin: 0 8px 12px 0; border: 1px solid rgba(233,69,96,0.15);
  transition: var(--transition);
}
.article-tags .tag:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
/* Related */
.related-section {
  background: var(--bg-dark); padding: 60px 0;
}
.related-section h2 {
  font-size: 28px; font-weight: 700; color: var(--text-white); margin-bottom: 40px; text-align: center;
}
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.related-card {
  background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
  transition: var(--transition); border: 1px solid var(--border-color);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(233,69,96,0.3); }
.related-card-img {
  height: 180px; background: var(--primary-light); position: relative; overflow: hidden;
}
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-card-body { padding: 20px 24px 24px; }
.related-card-body h3 { font-size: 16px; font-weight: 600; color: var(--text-white); margin-bottom: 8px; line-height: 1.4; }
.related-card-body p { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-body .meta { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 12px; }
.related-card-body .meta i { color: var(--accent); font-size: 12px; }
/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0f0f1a 100%);
  padding: 60px 0; text-align: center; border-top: 1px solid var(--border-color);
}
.cta-section h2 { font-size: 28px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.cta-section p { color: var(--text-muted); margin-bottom: 28px; max-width: 500px; margin-left: auto; margin-right: auto; }
/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px;
  border-radius: 50px; font-size: 16px; font-weight: 600; cursor: pointer;
  transition: var(--transition); border: none; text-decoration: none;
}
.btn-primary { background: var(--secondary); color: #fff; box-shadow: 0 4px 20px rgba(233,69,96,0.3); }
.btn-primary:hover { background: #d13350; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 32px rgba(233,69,96,0.4); }
.btn-outline { background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.2); }
.btn-outline:hover { border-color: var(--secondary); color: var(--secondary); transform: translateY(-2px); }
.btn-sm { padding: 10px 24px; font-size: 14px; }
/* Footer */
.footer {
  background: var(--primary); padding: 48px 0 0; border-top: 1px solid var(--border-color);
}
.footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-brand .logo-text { font-size: 20px; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.8; max-width: 360px; }
.footer h4 { font-size: 14px; font-weight: 600; color: var(--text-white); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 14px; color: var(--text-muted); transition: var(--transition); }
.footer ul li a:hover { color: var(--secondary); }
.footer-bottom {
  grid-column: 1 / -1; border-top: 1px solid var(--border-color);
  padding: 24px 0; margin-top: 16px; display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--text-muted);
}
/* Hamburger */
.hamburger {
  display: none; position: fixed; top: 16px; left: 16px; z-index: 1100;
  width: 44px; height: 44px; border-radius: 12px; background: var(--primary);
  border: 1px solid var(--border-color); color: var(--text-white); font-size: 20px;
  cursor: pointer; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4); transition: var(--transition);
}
.hamburger:hover { background: var(--bg-card); }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 999; }
/* Responsive */
@media (max-width: 1024px) {
  .article-header h1 { font-size: 32px; }
  .article-body { padding: 36px 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .sidebar-overlay.active { display: block; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .article-header { padding: 60px 0 40px; }
  .article-header h1 { font-size: 26px; }
  .article-body { padding: 28px 20px; border-radius: var(--radius-sm); }
  .article-body { font-size: 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer .container { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-meta { gap: 12px; font-size: 13px; flex-wrap: wrap; }
}
@media (max-width: 520px) {
  .article-header h1 { font-size: 22px; }
  .article-body { padding: 20px 16px; font-size: 15px; }
  .article-body h2 { font-size: 20px; }
  .article-body h3 { font-size: 17px; }
  .cta-section h2 { font-size: 22px; }
  .related-section h2 { font-size: 22px; }
  .breadcrumb .container { font-size: 12px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #D4380D;
            --primary-light: #E85D3A;
            --primary-dark: #A62C0A;
            --accent: #F5A623;
            --accent-light: #FFC44D;
            --bg-deep: #0B0B16;
            --bg-surface: #12122A;
            --bg-card: #1A1A34;
            --bg-card-hover: #222244;
            --border-color: #2D2D50;
            --border-light: #3A3A5C;
            --text-primary: #F1F1F7;
            --text-secondary: #B0B0C8;
            --text-muted: #7A7A9A;
            --success: #2ECC71;
            --warning: #F39C12;
            --danger: #E74C3C;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 14px 40px rgba(212, 56, 13, 0.25);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --sidebar-width: 240px;
            --header-height: 0px;
        }
        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: row;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1.2rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-bottom: 0.8rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }
        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== 左侧导航 (App Shell) ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-surface);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 28px 20px 18px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .logo-icon {
            font-size: 1.8rem;
            color: var(--primary-light);
            background: rgba(212, 56, 13, 0.15);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sidebar-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 1px;
        }
        .sidebar-brand .logo-text span {
            color: var(--primary-light);
        }
        .sidebar-nav {
            padding: 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--text-muted);
            padding: 12px 12px 8px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sidebar-nav a:hover {
            background: rgba(212, 56, 13, 0.08);
            color: var(--text-primary);
        }
        .sidebar-nav a:hover i {
            color: var(--primary-light);
        }
        .sidebar-nav a.active {
            background: rgba(212, 56, 13, 0.15);
            color: var(--primary-light);
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            color: var(--primary-light);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--primary-light);
            border-radius: 0 4px 4px 0;
        }
        .sidebar-nav a .badge {
            font-size: 0.6rem;
            background: var(--primary);
            color: #fff;
            padding: 2px 8px;
            border-radius: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-left: auto;
        }
        /* ===== 侧栏底部 ===== */
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-color);
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
        }
        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        /* ===== 移动端菜单切换 ===== */
        .menu-toggle {
            display: none;
            position: fixed;
            top: 18px;
            left: 18px;
            z-index: 1100;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text-primary);
            cursor: pointer;
            transition: background var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
        }
        .menu-toggle:hover {
            background: var(--bg-card);
        }
        .menu-toggle .close-icon {
            display: none;
        }
        .menu-toggle.open .close-icon {
            display: block;
        }
        .menu-toggle.open .open-icon {
            display: none;
        }
        /* ===== Hero / 分类Banner ===== */
        .category-hero {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(135deg, rgba(11, 11, 22, 0.92) 0%, rgba(18, 18, 42, 0.8) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-deep), transparent);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .hero-breadcrumb {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .category-hero .hero-breadcrumb a {
            color: var(--text-secondary);
        }
        .category-hero .hero-breadcrumb a:hover {
            color: var(--accent);
        }
        .category-hero .hero-breadcrumb .separator {
            color: var(--text-muted);
        }
        .category-hero .hero-breadcrumb .current {
            color: var(--primary-light);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #F1F1F7 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .category-hero .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 1px;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 10px;
        }
        .section-header p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 16px auto 24px;
        }
        /* ===== 分类子标签 ===== */
        .sub-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 32px;
        }
        .sub-tags .tag {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.2s;
        }
        .sub-tags .tag:hover {
            background: rgba(212, 56, 13, 0.12);
            border-color: var(--primary);
            color: var(--text-primary);
            transform: translateY(-2px);
        }
        .sub-tags .tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .guide-card .card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-radius: 0;
            display: block;
            transition: transform 0.4s;
        }
        .guide-card:hover .card-img {
            transform: scale(1.03);
        }
        .guide-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .guide-card .card-tags span {
            font-size: 0.7rem;
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .guide-card .card-tags .hot {
            background: rgba(212, 56, 13, 0.15);
            color: var(--primary-light);
        }
        .guide-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
            line-height: 1.4;
        }
        .guide-card h3 a {
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .guide-card h3 a:hover {
            color: var(--primary-light);
        }
        .guide-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 14px;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: auto;
        }
        .guide-card .card-meta i {
            margin-right: 6px;
            font-size: 0.75rem;
        }
        .guide-card .card-meta .views {
            display: flex;
            align-items: center;
        }
        /* ===== 排行列表 ===== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 14px 20px;
            transition: background var(--transition), border-color var(--transition), transform 0.2s;
            cursor: pointer;
        }
        .rank-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateX(4px);
        }
        .rank-item .rank-number {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 36px;
            text-align: center;
        }
        .rank-item:nth-child(1) .rank-number {
            color: var(--accent);
        }
        .rank-item:nth-child(2) .rank-number {
            color: var(--text-secondary);
        }
        .rank-item:nth-child(3) .rank-number {
            color: var(--primary-light);
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }
        .rank-item .rank-badge {
            font-size: 0.7rem;
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 600;
            background: rgba(46, 204, 113, 0.12);
            color: var(--success);
        }
        .rank-item .rank-badge.hot-rank {
            background: rgba(212, 56, 13, 0.12);
            color: var(--primary-light);
        }
        /* ===== 流程步骤 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
            gap: 28px;
            counter-reset: step-counter;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card .step-icon {
            font-size: 2.2rem;
            color: var(--primary-light);
            margin-bottom: 14px;
            background: rgba(212, 56, 13, 0.08);
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-left: auto;
            margin-right: auto;
        }
        .step-card h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .step-card .step-number {
            position: absolute;
            top: -10px;
            right: -10px;
            background: var(--primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            border: 3px solid var(--bg-deep);
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-item .faq-question:hover {
            background: rgba(212, 56, 13, 0.04);
        }
        .faq-item .faq-question i {
            color: var(--primary-light);
            font-size: 1.1rem;
            transition: transform 0.3s;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(212, 56, 13, 0.12) 0%, rgba(245, 166, 35, 0.08) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 70px 0;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            margin-bottom: 14px;
        }
        .cta-section p {
            max-width: 540px;
            margin: 0 auto 30px;
            font-size: 1.05rem;
            color: var(--text-secondary);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            transition: background var(--transition), transform 0.2s, box-shadow var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .btn:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 56, 13, 0.35);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary-light);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-accent {
            background: var(--accent);
            color: #0B0B16;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: #0B0B16;
            box-shadow: 0 8px 28px rgba(245, 166, 35, 0.3);
        }
        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
            margin-top: auto;
        }
        .footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            display: block;
            margin-bottom: 12px;
        }
        .footer .footer-brand .logo-text span {
            color: var(--primary-light);
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 340px;
            line-height: 1.7;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer ul li a:hover {
            color: var(--primary-light);
        }
        .footer .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            margin-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.6rem;
            }
            .category-hero .hero-stats {
                gap: 28px;
            }
        }
        @media (max-width: 920px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .menu-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .category-hero {
                padding: 60px 0 50px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-stats .stat-number {
                font-size: 1.6rem;
            }
            .section {
                padding: 50px 0;
            }
            .guide-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 20px;
            }
            .steps {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .footer .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 50px 0 40px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-stats {
                gap: 20px;
                flex-direction: column;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .sub-tags .tag {
                font-size: 0.8rem;
                padding: 6px 16px;
            }
            .rank-item {
                flex-wrap: wrap;
                padding: 12px 16px;
            }
            .rank-item .rank-badge {
                font-size: 0.65rem;
                padding: 2px 10px;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .menu-toggle {
                top: 12px;
                left: 12px;
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
        }
        /* ===== 遮罩 ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            backdrop-filter: blur(4px);
        }
        .sidebar-overlay.show {
            display: block;
        }
        @media (max-width: 920px) {
            .sidebar-overlay.show {
                display: block;
            }
        }
        /* ===== 滚动条 ===== */
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        /* ===== 小工具 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        /* ===== 加载骨架 ===== */
        .loading-spinner {
            display: inline-block;
            width: 24px;
            height: 24px;
            border: 3px solid var(--border-color);
            border-top-color: var(--primary-light);
            border-radius: 50%;
            animation: spin 0.7s linear infinite;
        }
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }