/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #0f2b4a;
  --color-primary-light: #1a3f66;
  --color-primary-dark: #091b30;
  --color-accent: #d4a843;
  --color-accent-light: #e4c06a;
  --color-accent-dark: #b8912e;
  --color-bg: #f8f7f4;
  --color-bg-alt: #eef0f3;
  --color-bg-dark: #0f2b4a;
  --color-text: #1e2a3a;
  --color-text-light: #5a6a7a;
  --color-text-inverse: #ffffff;
  --color-border: #e2e4e8;
  --color-border-light: #eef0f2;
  --color-success: #2a9d6e;
  --color-warning: #e8a838;
  --color-error: #c0392b;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(15, 43, 74, 0.06);
  --shadow-md: 0 6px 24px rgba(15, 43, 74, 0.10);
  --shadow-lg: 0 16px 48px rgba(15, 43, 74, 0.14);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: var(--space-md); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
p { margin-bottom: 1rem; color: var(--color-text-light); }
button, input, textarea, select { font-family: inherit; font-size: 1rem; }
button { cursor: pointer; border: none; background: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ===== 导航 ===== */
.site-header {
  background: var(--color-primary);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(15, 43, 74, 0.25);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo i { color: var(--color-accent); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, #fff 60%, var(--color-accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo:hover { opacity: 0.9; }
.main-nav { display: flex; align-items: center; gap: 0.25rem; }
.main-nav a {
  color: rgba(255,255,255,0.8);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
}
.main-nav a:hover, .main-nav a.active { color: #fff; background: rgba(255,255,255,0.10); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-accent);
}
.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-primary) !important;
  padding: 0.55rem 1.6rem !important;
  border-radius: 50px !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(212, 168, 67, 0.35);
  transition: all var(--transition) !important;
  margin-left: 0.5rem;
}
.nav-cta:hover { background: var(--color-accent-light) !important; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212, 168, 67, 0.45) !important; color: var(--color-primary-dark) !important; }
.mobile-toggle { display: none; color: #fff; font-size: 1.5rem; padding: 0.5rem; cursor: pointer; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: var(--color-primary-dark);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center center;
  background-blend-mode: overlay;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,43,74,0.85) 0%, rgba(15,43,74,0.50) 50%, rgba(15,43,74,0.75) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; width: 100%; }
.hero-content { max-width: 700px; padding: 3rem 0; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(212,168,67,0.20);
  color: var(--color-accent-light);
  padding: 0.35rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(212,168,67,0.25);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}
.hero-content h1 {
  color: #fff;
  margin-bottom: 1.2rem;
  line-height: 1.2;
}
.hero-content h1 em { color: var(--color-accent); font-style: normal; }
.hero-content p {
  color: rgba(255,255,255,0.8);
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 580px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 0.85rem 2.2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 6px 24px rgba(212,168,67,0.40);
  transition: all var(--transition);
  border: none;
}
.btn-primary:hover { background: var(--color-accent-light); transform: translateY(-3px); box-shadow: 0 10px 32px rgba(212,168,67,0.50); color: var(--color-primary-dark); }
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: transparent;
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid rgba(255,255,255,0.30);
  transition: all var(--transition);
}
.btn-outline-light:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(212,168,67,0.10); transform: translateY(-3px); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.10); }
.hero-stat { text-align: center; }
.hero-stat-number { font-size: 2rem; font-weight: 800; color: #fff; }
.hero-stat-number i { color: var(--color-accent); font-size: 1.6rem; margin-right: 0.3rem; }
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 0.2rem; }

/* ===== 板块通用 ===== */
.section { padding: var(--space-xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-bg-dark); color: #fff; }
.section-title { text-align: center; margin-bottom: var(--space-lg); }
.section-title h2 { margin-bottom: 0.5rem; }
.section-title p { max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.section-dark .section-title h2 { color: #fff; }
.section-dark .section-title p { color: rgba(255,255,255,0.65); }
.section-divider { width: 60px; height: 4px; background: var(--color-accent); border-radius: 3px; margin: 0 auto 1rem; }

/* ===== 平台简介 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: center; }
.about-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-image img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.about-text h2 { margin-bottom: 1rem; }
.about-text p { margin-bottom: 1.2rem; font-size: 1.02rem; }
.about-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.tag:hover { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }

/* ===== 分类入口 ===== */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-md); }
.category-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.category-card-image { height: 180px; overflow: hidden; position: relative; }
.category-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .category-card-image img { transform: scale(1.06); }
.category-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15,43,74,0.30) 0%, transparent 60%);
}
.category-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.category-card-body h3 { font-size: 1.2rem; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
.category-card-body h3 i { color: var(--color-accent); }
.category-card-body p { font-size: 0.92rem; flex: 1; margin-bottom: 1rem; }
.category-card-link { color: var(--color-accent-dark); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; transition: gap var(--transition); }
.category-card-link:hover { gap: 0.8rem; color: var(--color-primary); }

/* ===== 最新资讯 (CMS) ===== */
.posts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-md); }
.post-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.post-card-image { height: 200px; overflow: hidden; background: var(--color-bg-alt); }
.post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.post-card:hover .post-card-image img { transform: scale(1.05); }
.post-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.post-meta { display: flex; align-items: center; gap: 1rem; font-size: 0.82rem; color: var(--color-text-light); margin-bottom: 0.6rem; }
.post-meta .post-category { background: var(--color-bg-alt); padding: 0.15rem 0.7rem; border-radius: 50px; font-weight: 500; color: var(--color-primary); }
.post-card-body h3 { font-size: 1.1rem; margin-bottom: 0.5rem; line-height: 1.4; }
.post-card-body h3 a { color: var(--color-primary); }
.post-card-body h3 a:hover { color: var(--color-accent); }
.post-card-body p { font-size: 0.9rem; flex: 1; margin-bottom: 0.8rem; }
.post-read-more { color: var(--color-accent-dark); font-weight: 600; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 0.3rem; }
.post-read-more:hover { gap: 0.6rem; color: var(--color-primary); }
.post-empty { grid-column: 1 / -1; text-align: center; padding: 3rem 1rem; color: var(--color-text-light); background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.post-empty i { font-size: 2.5rem; color: var(--color-border); margin-bottom: 1rem; display: block; }

/* ===== 平台优势 ===== */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-md); }
.feature-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 2rem 1.8rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--color-border-light);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: 1.6rem;
  color: var(--color-accent);
  transition: all var(--transition);
}
.feature-card:hover .feature-icon { background: var(--color-accent); color: #fff; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.9rem; margin-bottom: 0; }

/* ===== 使用流程 ===== */
.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-md); counter-reset: step; }
.process-step {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition);
}
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.process-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(212,168,67,0.35);
}
.process-step .step-icon { font-size: 2rem; color: var(--color-primary); margin-bottom: 0.8rem; margin-top: 0.3rem; }
.process-step h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.process-step p { font-size: 0.88rem; margin-bottom: 0; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--color-accent); box-shadow: var(--shadow-sm); }
.faq-question {
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 1rem;
  transition: background var(--transition);
  background: transparent;
  width: 100%;
  text-align: left;
}
.faq-question:hover { background: var(--color-bg-alt); }
.faq-question i { transition: transform var(--transition); color: var(--color-accent); font-size: 0.9rem; }
.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 1.5rem;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}
.faq-item.active .faq-answer { max-height: 300px; padding: 0 1.5rem 1.2rem; }

/* ===== CTA ===== */
.cta-section {
  background: var(--color-primary);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,43,74,0.88) 0%, rgba(15,43,74,0.70) 100%);
}
.cta-section .container { position: relative; z-index: 2; text-align: center; padding: var(--space-xl) 1.5rem; }
.cta-section h2 { color: #fff; margin-bottom: 0.8rem; }
.cta-section p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-lg) 0 var(--space-md);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
.footer-brand .logo { font-size: 1.3rem; margin-bottom: 0.8rem; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); max-width: 300px; }
.footer-social { display: flex; gap: 0.8rem; margin-top: 1rem; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--color-accent); color: var(--color-primary-dark); transform: translateY(-3px); }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 0.3rem 0; transition: all var(--transition); }
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 1.5rem; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 1rem 1.5rem 1.5rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    gap: 0.25rem;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.7rem 1rem; width: 100%; border-radius: var(--radius-sm); }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { background: rgba(212,168,67,0.15); color: var(--color-accent); }
  .nav-cta { margin-left: 0; margin-top: 0.5rem; text-align: center; }
  
  .hero { min-height: 70vh; }
  .hero-stats { gap: 1.2rem; justify-content: center; }
  .hero-stat-number { font-size: 1.5rem; }
  
  .about-grid { grid-template-columns: 1fr; }
  .about-image { order: -1; }
  
  .section { padding: var(--space-lg) 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 520px) {
  .header-inner { height: 60px; padding: 0 1rem; }
  .logo { font-size: 1.2rem; }
  .logo i { font-size: 1.3rem; }
  .hero-content h1 { font-size: 1.8rem; }
  .hero-content p { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary, .hero-actions .btn-outline-light { justify-content: center; }
  .hero-stats { flex-direction: column; gap: 0.8rem; align-items: center; }
  .category-grid { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-section .container { padding: var(--space-lg) 1rem; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn-primary, .cta-actions .btn-outline-light { justify-content: center; }
}

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #0d1b2a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #f0f0f5;
            --text-muted: #8888a0;
            --border-color: #e0e0e8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
            --shadow-hover: 0 16px 48px rgba(230, 57, 70, 0.18);
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'System UI', -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
            height: var(--header-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(230, 57, 70, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover span {
            -webkit-text-fill-color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a i {
            font-size: 14px;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .main-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.30);
        }
        .main-nav a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .main-nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 24px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.30);
            border: none;
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.40);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--secondary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* Mobile Nav */
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.40s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 3px solid var(--primary);
                z-index: 999;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .main-nav a {
                padding: 12px 20px;
                font-size: 16px;
                width: 100%;
                border-radius: 12px;
                justify-content: center;
            }
            .main-nav a.nav-cta {
                margin-top: 6px;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 60%, var(--secondary-light) 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(29, 53, 87, 0.78) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .banner-breadcrumb {
            margin-top: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }
        .banner-breadcrumb a {
            color: var(--accent);
        }
        .banner-breadcrumb a:hover {
            color: #fff;
        }
        .banner-breadcrumb span {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 56px 0 48px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 52px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 57, 70, 0.12);
        }
        .card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: #eee;
        }
        .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .card-footer-link {
            margin-top: 14px;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-footer-link i {
            transition: transform var(--transition);
        }
        .card:hover .card-footer-link i {
            transform: translateX(4px);
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 600px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Features / Icon Cards ===== */
        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.10), rgba(244, 162, 97, 0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.06);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Steps / Timeline ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-4px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.30);
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }
        @media (max-width: 900px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            padding: 18px 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 12px 0 4px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .section-dark .faq-item {
            border-color: rgba(255, 255, 255, 0.10);
        }
        .section-dark .faq-question {
            color: #fff;
        }
        .section-dark .faq-question:hover {
            color: var(--accent);
        }
        .section-dark .faq-answer {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.20);
            color: var(--primary-dark);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.50);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }
        @media (max-width: 600px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .cta-btn-group {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .tag-primary {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-color: transparent;
        }

        /* ===== Content List ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .content-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all var(--transition);
        }
        .content-list-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230, 57, 70, 0.12);
        }
        .content-list-item .num {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            min-width: 36px;
        }
        .content-list-item .info {
            flex: 1;
        }
        .content-list-item .info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 2px;
        }
        .content-list-item .info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .content-list-item .meta {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin: 12px 0 18px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 18px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-brand p {
                margin: 12px auto 18px;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .mt-1 {
            margin-top: 12px;
        }
        .mt-2 {
            margin-top: 24px;
        }
        .mb-1 {
            margin-bottom: 12px;
        }
        .mb-2 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 12px;
        }
        .gap-2 {
            gap: 24px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .text-primary {
            color: var(--primary);
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 1024px) {
            .feature-card {
                padding: 24px 16px;
            }
            .content-list-item {
                padding: 12px 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner h1 i {
                display: block;
                margin: 0 auto 8px;
            }
            .section-title {
                font-size: 21px;
            }
            .feature-card h3 {
                font-size: 16px;
            }
        }
        /* Foundation overrides */
        .grid-container {
            max-width: var(--max-width);
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding: 0 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }
        .grid-padding-x>.cell {
            padding-left: 14px;
            padding-right: 14px;
        }
        @media (max-width: 600px) {
            .grid-padding-x>.cell {
                padding-left: 8px;
                padding-right: 8px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a0e27;
            --primary-light: #1a1f4e;
            --accent: #f0a500;
            --accent-hover: #e89800;
            --accent-light: #fff3d6;
            --bg-body: #f5f6fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a0e27;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-weak: #8888aa;
            --text-light: #ffffff;
            --border-color: #e8e8f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(10, 14, 39, 0.06);
            --shadow-md: 0 8px 24px rgba(10, 14, 39, 0.10);
            --shadow-lg: 0 16px 48px rgba(10, 14, 39, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-primary); font-weight: 700; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 14, 39, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(240, 165, 0, 0.15);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.35rem; font-weight: 800; color: var(--text-light);
            letter-spacing: 0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.5rem; }
        .logo span { background: linear-gradient(135deg, #f0a500, #ffc34d); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .main-nav { display: flex; align-items: center; gap: 6px; }
        .main-nav a {
            display: flex; align-items: center; gap: 6px;
            padding: 8px 18px; border-radius: 30px;
            font-size: 0.92rem; font-weight: 500; color: rgba(255,255,255,0.75);
            transition: all var(--transition); white-space: nowrap;
        }
        .main-nav a i { font-size: 0.85rem; }
        .main-nav a:hover { color: #fff; background: rgba(240,165,0,0.12); }
        .main-nav a.active { color: #fff; background: rgba(240,165,0,0.18); font-weight: 600; }
        .main-nav a.nav-cta {
            background: linear-gradient(135deg, var(--accent), #e89000);
            color: #0a0e27 !important; font-weight: 700; padding: 8px 24px;
            box-shadow: 0 4px 14px rgba(240,165,0,0.35);
        }
        .main-nav a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(240,165,0,0.5); }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 6px 10px; border-radius: 8px; }
        .nav-toggle:hover { background: rgba(255,255,255,0.08); }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, rgba(10,14,39,0.92), rgba(26,31,78,0.88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            text-align: center;
            overflow: hidden;
        }
        .article-banner::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0;
            height: 80px; background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .article-banner .container { position: relative; z-index: 2; }
        .breadcrumb {
            display: flex; justify-content: center; align-items: center; gap: 8px;
            font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 24px;
        }
        .breadcrumb a { color: var(--accent); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb span { color: rgba(255,255,255,0.8); }
        .article-banner h1 {
            font-size: 2.6rem; font-weight: 800; color: #fff;
            max-width: 900px; margin: 0 auto 20px;
            line-height: 1.2;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .article-banner .meta {
            display: flex; justify-content: center; align-items: center; gap: 20px;
            color: rgba(255,255,255,0.75); font-size: 0.95rem;
        }
        .article-banner .meta i { margin-right: 6px; color: var(--accent); }
        .article-banner .meta .badge {
            display: inline-block; padding: 3px 14px; border-radius: 30px;
            background: var(--accent); color: #0a0e27; font-size: 0.8rem; font-weight: 700;
        }

        /* ===== 文章主内容 ===== */
        .article-main {
            padding: 0 0 60px;
            margin-top: -40px;
            position: relative; z-index: 3;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 56px;
            max-width: 880px; margin: 0 auto;
        }
        .article-featured-image {
            margin: -48px -56px 40px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            max-height: 420px;
        }
        .article-featured-image img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
        .article-body {
            font-size: 1.05rem; line-height: 1.9; color: var(--text-secondary);
        }
        .article-body p { margin-bottom: 1.4em; }
        .article-body h2, .article-body h3 { margin-top: 1.8em; margin-bottom: 0.6em; color: var(--text-primary); }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.4em; padding-left: 1.8em; list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
        .article-body blockquote {
            border-left: 4px solid var(--accent); background: var(--accent-light);
            padding: 16px 24px; margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-primary);
        }
        .article-body img { border-radius: var(--radius-md); margin: 1.6em auto; box-shadow: var(--shadow-sm); }
        .article-body code { background: #f0f0f5; padding: 2px 10px; border-radius: 4px; font-size: 0.9em; }

        /* ===== 文章底部标签 ===== */
        .article-footer-bar {
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 16px;
            margin-top: 40px; padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .article-tags .tag {
            display: inline-block; padding: 4px 16px; border-radius: 30px;
            background: var(--accent-light); color: var(--primary); font-size: 0.82rem; font-weight: 500;
        }
        .article-share { display: flex; align-items: center; gap: 10px; }
        .article-share span { font-size: 0.85rem; color: var(--text-weak); }
        .article-share a {
            display: flex; align-items: center; justify-content: center;
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--bg-body); color: var(--text-secondary);
            transition: all var(--transition);
        }
        .article-share a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }

        /* ===== 上下篇导航 ===== */
        .article-pagination {
            padding: 40px 0 20px;
            max-width: 880px; margin: 0 auto;
        }
        .article-pagination .grid-x { gap: 20px; }
        .article-pagination .cell { flex: 1; }
        .pagination-link {
            display: flex; flex-direction: column; gap: 4px;
            padding: 20px 28px; background: var(--bg-card); border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .pagination-link:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--accent); }
        .pagination-link .dir { font-size: 0.8rem; color: var(--text-weak); text-transform: uppercase; letter-spacing: 1px; }
        .pagination-link .title { font-size: 1rem; font-weight: 600; color: var(--text-primary); }
        .pagination-link:hover .title { color: var(--accent); }
        .pagination-link.next { text-align: right; }

        /* ===== 相关推荐 ===== */
        .related-posts {
            padding: 60px 0 70px;
            background: var(--bg-white);
        }
        .related-posts .section-title {
            font-size: 1.8rem; font-weight: 700; text-align: center; margin-bottom: 40px;
        }
        .related-posts .section-title span { color: var(--accent); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            overflow: hidden; box-shadow: var(--shadow-sm);
            transition: all var(--transition); border: 1px solid var(--border-color);
        }
        .related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--accent); }
        .related-card .card-img {
            height: 180px; overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; border-radius: 0; }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 20px 22px 24px; }
        .related-card .card-body .cat {
            display: inline-block; padding: 2px 12px; border-radius: 30px;
            background: var(--accent-light); color: var(--primary); font-size: 0.75rem; font-weight: 600;
            margin-bottom: 10px;
        }
        .related-card .card-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .related-card .card-body h3 a { color: var(--text-primary); }
        .related-card .card-body h3 a:hover { color: var(--accent); }
        .related-card .card-body p { font-size: 0.88rem; color: var(--text-weak); margin-bottom: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        /* ===== CTA 区域 ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-light)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: rgba(10,14,39,0.6);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn-cta {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 16px 48px; border-radius: 50px;
            background: linear-gradient(135deg, var(--accent), #e89000);
            color: #0a0e27; font-size: 1.1rem; font-weight: 700;
            box-shadow: 0 8px 30px rgba(240,165,0,0.4);
            transition: all var(--transition);
        }
        .cta-section .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(240,165,0,0.55); color: #0a0e27; }

        /* ===== 404 / 错误状态 ===== */
        .error-block {
            text-align: center; padding: 100px 20px;
            max-width: 600px; margin: 0 auto;
        }
        .error-block i { font-size: 4rem; color: var(--text-weak); margin-bottom: 24px; }
        .error-block h2 { font-size: 2rem; margin-bottom: 12px; }
        .error-block p { color: var(--text-secondary); margin-bottom: 28px; }
        .error-block .btn-back {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 32px; border-radius: 50px;
            background: var(--accent); color: #0a0e27; font-weight: 600;
            transition: all var(--transition);
        }
        .error-block .btn-back:hover { background: var(--accent-hover); transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { margin-bottom: 16px; font-size: 1.2rem; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.6; color: rgba(255,255,255,0.55); margin-bottom: 20px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6);
            transition: all var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: #0a0e27; transform: translateY(-2px); }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 4px 0; transition: all var(--transition); }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px; margin-top: 16px;
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px;
            font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .article-content { padding: 40px 32px; }
            .article-featured-image { margin: -40px -32px 32px; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-toggle { display: block; }
            .main-nav {
                position: fixed; top: var(--header-height); left: 0; right: 0;
                background: rgba(10,14,39,0.98); backdrop-filter: blur(20px);
                flex-direction: column; padding: 16px 24px; gap: 4px;
                transform: translateY(-120%); opacity: 0; pointer-events: none;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid rgba(240,165,0,0.1);
                box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            }
            .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .main-nav a { width: 100%; justify-content: center; padding: 12px 18px; font-size: 1rem; }
            .main-nav a.nav-cta { margin-top: 6px; }
            .article-banner { padding: 70px 0 60px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-banner .meta { flex-direction: column; gap: 10px; }
            .article-content { padding: 28px 20px; border-radius: var(--radius-md); }
            .article-featured-image { margin: -28px -20px 24px; max-height: 240px; border-radius: var(--radius-md) var(--radius-md) 0 0; }
            .article-body { font-size: 0.98rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section .btn-cta { padding: 14px 32px; font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-pagination .grid-x { flex-direction: column; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.4rem; }
            .article-content { padding: 20px 16px; }
            .article-featured-image { margin: -20px -16px 20px; max-height: 180px; }
            .related-card .card-img { height: 140px; }
            .cta-section { padding: 60px 0; }
            .cta-section h2 { font-size: 1.3rem; }
        }