/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --secondary: #7c3aed;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-card: #ffffff;
  --bg-dark: #0f172a;
  --bg-dark-alt: #1e293b;
  --text: #1e293b;
  --text-secondary: #475569;
  --text-light: #94a3b8;
  --text-inverse: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
  --max-width: 1200px;
  --max-width-narrow: 960px;
  --header-height: 72px;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
}

/* ===== 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-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-dark); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-xs); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 0.5rem; }
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: var(--max-width-narrow); }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--text-inverse); }
.section-title {
  text-align: center;
  margin-bottom: 16px;
}
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-dark .section-subtitle { color: var(--text-light); }
.section-dark .section-title { color: var(--text-inverse); }
.section-header { margin-bottom: 48px; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  height: var(--header-height);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled { background: rgba(255,255,255,0.98); box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}
.logo i { color: var(--primary); font-size: 1.6rem; }
.logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo:hover { color: var(--text); }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-list a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}
.nav-list a i { font-size: 0.9rem; }
.nav-list a:hover, .nav-list a.active { color: var(--primary); background: var(--primary-light); }
.nav-list a.active { font-weight: 600; }
.nav-cta {
  background: var(--primary-gradient) !important;
  color: #fff !important;
  padding: 8px 22px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}
.nav-cta:hover { box-shadow: 0 6px 20px rgba(37,99,235,0.4) !important; transform: translateY(-1px); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  gap: 5px;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  filter: brightness(0.45) saturate(0.9);
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.7) 0%, rgba(30,27,75,0.5) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 60px 24px;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.9);
}
.hero-badge i { color: var(--accent-light); }
.hero h1 { color: #fff; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero h1 span { background: linear-gradient(135deg, #60a5fa, #a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 8px 24px rgba(37,99,235,0.35);
}
.btn-primary:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.45); transform: translateY(-2px); color: #fff; }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,0.08); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-stat { text-align: left; }
.hero-stat-number { font-size: 1.8rem; font-weight: 800; color: #fff; }
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 2px; }

/* ===== Grid / Cards ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: transparent; }
.card-image { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.card-body { padding: 24px; }
.card-body h3 { margin-bottom: 8px; }
.card-body p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }
.card-tag {
  display: inline-block;
  padding: 3px 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.card-footer { padding: 16px 24px; border-top: 1px solid var(--border-light); display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; color: var(--text-light); }

.feature-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: transparent; }
.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== Content List (CMS) ===== */
.content-list { display: flex; flex-direction: column; gap: 16px; }
.content-item {
  display: flex;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
  align-items: flex-start;
}
.content-item:hover { box-shadow: var(--shadow-sm); border-color: var(--primary-light); }
.content-item .item-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-alt);
}
.content-item .item-info { flex: 1; min-width: 0; }
.content-item .item-title { font-weight: 600; font-size: 1.05rem; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.content-item .item-title a { color: var(--text); }
.content-item .item-title a:hover { color: var(--primary); }
.content-item .item-excerpt { color: var(--text-secondary); font-size: 0.9rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.content-item .item-meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text-light); }
.content-item .item-meta i { margin-right: 4px; }
.content-item .item-meta .category { color: var(--primary); font-weight: 500; }
.empty-msg { text-align: center; padding: 60px 20px; color: var(--text-light); font-size: 1rem; background: var(--bg-alt); border-radius: var(--radius); }

/* ===== Category Cards ===== */
.cat-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: flex-end;
  cursor: pointer;
  transition: all var(--transition);
}
.cat-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cat-card:hover img { transform: scale(1.06); }
.cat-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.1) 60%, rgba(0,0,0,0) 100%);
  z-index: 1;
}
.cat-card .cat-info {
  position: relative;
  z-index: 2;
  padding: 24px;
  color: #fff;
  width: 100%;
}
.cat-card .cat-info h3 { color: #fff; font-size: 1.15rem; margin-bottom: 4px; }
.cat-card .cat-info p { color: rgba(255,255,255,0.8); font-size: 0.85rem; }

/* ===== Stats / Numbers ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 32px 16px; }
.stat-number { font-size: 2.4rem; font-weight: 800; background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.2; }
.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }
.section-dark .stat-number { -webkit-text-fill-color: #fff; color: #fff; background: none; }
.section-dark .stat-label { color: var(--text-light); }

/* ===== 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);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text);
  gap: 16px;
}
.faq-question i { color: var(--primary); transition: transform var(--transition); font-size: 0.9rem; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
.faq-item.active .faq-answer { padding: 0 24px 20px; max-height: 400px; }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary-gradient);
  padding: 80px 0;
  text-align: center;
  color: #fff;
}
.cta-section h2 { color: #fff; margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 32px; font-size: 1.05rem; }
.cta-section .btn { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.cta-section .btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.2); color: var(--primary-dark); }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; color: var(--text-light); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-col a {
  display: block;
  color: var(--text-light);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
}
.footer-bottom a { color: var(--text-light); }
.footer-bottom a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-toggle { display: flex; }
  .nav-list.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
  }
  .nav-list.open a { padding: 12px 16px; width: 100%; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .section { padding: 48px 0; }
  .content-item { flex-direction: column; }
  .content-item .item-thumb { width: 100%; height: 160px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section { padding: 48px 0; }
  .hero-stat-number { font-size: 1.4rem; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 16px; }
  .header-inner { padding: 0 16px; }
  .content-item .item-thumb { height: 120px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f0e2e;
            --primary-light: #1a184a;
            --secondary: #e94560;
            --secondary-hover: #d63852;
            --accent: #f5a623;
            --accent-hover: #e0951a;
            --bg: #f4f6fc;
            --bg-white: #ffffff;
            --bg-dark: #0f0e2e;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --text-white: #f0f0f5;
            --border: #e1e5ef;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 32px rgba(15, 14, 46, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 14, 46, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
            --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: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-height);
        }

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

        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;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

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

        /* ===== Header / Nav (共享) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: var(--bg-dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .logo i {
            color: var(--secondary);
            font-size: 26px;
        }
        .logo span {
            background: linear-gradient(135deg, #f0f0f5, #c7c7e0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            cursor: pointer;
            padding: 6px;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(240, 240, 245, 0.7);
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a i {
            font-size: 14px;
        }
        .nav-list a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.07);
        }
        .nav-list a.active {
            color: var(--text-white);
            background: var(--secondary);
        }
        .nav-list a.active:hover {
            background: var(--secondary-hover);
        }
        .nav-list a.nav-cta {
            background: var(--secondary);
            color: #fff;
            padding: 8px 22px;
            font-weight: 600;
        }
        .nav-list a.nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.4);
        }

        /* ===== 页面头部 / 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 60px 0 40px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 14, 46, 0.88), rgba(15, 14, 46, 0.72));
            z-index: 1;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(240, 240, 245, 0.6);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(240, 240, 245, 0.7);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            font-size: 12px;
            color: rgba(240, 240, 245, 0.4);
        }
        .breadcrumb .current {
            color: var(--text-white);
            font-weight: 500;
        }

        .article-banner .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            margin-bottom: 18px;
        }
        .article-banner .article-meta .category-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: var(--secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .article-banner .article-meta .date,
        .article-banner .article-meta .views {
            font-size: 14px;
            color: rgba(240, 240, 245, 0.65);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-banner .article-meta .date i,
        .article-banner .article-meta .views i {
            font-size: 13px;
        }

        .article-banner h1 {
            font-size: clamp(26px, 4vw, 44px);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            max-width: 900px;
            letter-spacing: 0.3px;
        }
        .article-banner .article-desc {
            font-size: 17px;
            color: rgba(240, 240, 245, 0.75);
            margin-top: 16px;
            max-width: 720px;
            line-height: 1.6;
        }

        /* ===== 文章正文区 ===== */
        .article-main-wrap {
            padding: 48px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            overflow: hidden;
        }

        .article-content .post-body {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text);
        }
        .article-content .post-body p {
            margin-bottom: 20px;
        }
        .article-content .post-body h2 {
            font-size: 24px;
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .article-content .post-body h3 {
            font-size: 20px;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--primary-light);
        }
        .article-content .post-body ul,
        .article-content .post-body ol {
            margin: 16px 0 20px;
            padding-left: 24px;
        }
        .article-content .post-body ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-content .post-body ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }
        .article-content .post-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .article-content .post-body blockquote {
            border-left: 4px solid var(--secondary);
            background: #f8f0f2;
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-content .post-body a {
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content .post-body a:hover {
            color: var(--secondary-hover);
        }

        /* 内容未找到 */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--border);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 26px;
            color: var(--text);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 40px;
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.35);
        }

        /* ===== 侧栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
        }
        .sidebar-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card .card-title i {
            color: var(--secondary);
            font-size: 18px;
        }

        .sidebar-categories {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-categories a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-categories a:hover {
            background: var(--bg);
            color: var(--secondary);
        }
        .sidebar-categories a span {
            color: var(--text-light);
            font-size: 13px;
            font-weight: 400;
        }

        .sidebar-hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-hot-list .hot-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-hot-list .hot-item:last-child {
            border-bottom: none;
        }
        .sidebar-hot-list .hot-item .rank {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            color: #fff;
            background: var(--border);
        }
        .sidebar-hot-list .hot-item .rank.top {
            background: var(--secondary);
        }
        .sidebar-hot-list .hot-item .rank.top2 {
            background: var(--accent);
        }
        .sidebar-hot-list .hot-item .rank.top3 {
            background: #6c5ce7;
        }
        .sidebar-hot-list .hot-item .hot-text {
            flex: 1;
        }
        .sidebar-hot-list .hot-item .hot-text a {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            display: block;
            line-height: 1.4;
        }
        .sidebar-hot-list .hot-item .hot-text a:hover {
            color: var(--secondary);
        }
        .sidebar-hot-list .hot-item .hot-text .hot-meta {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 2px;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 40px;
            background: var(--bg);
            color: var(--text-light);
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--secondary);
            color: #fff;
        }

        /* ===== 文章底部导航 ===== */
        .article-nav-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }
        .article-nav-bottom .nav-prev,
        .article-nav-bottom .nav-next {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg);
        }
        .article-nav-bottom .nav-prev:hover,
        .article-nav-bottom .nav-next:hover {
            background: var(--secondary);
            color: #fff;
        }
        .article-nav-bottom .nav-prev i,
        .article-nav-bottom .nav-next i {
            font-size: 14px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 0 0 60px;
        }
        .related-section .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-title i {
            color: var(--secondary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body .card-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .related-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .related-card .card-body h3 a {
            color: var(--text);
        }
        .related-card .card-body h3 a:hover {
            color: var(--secondary);
        }
        .related-card .card-body .card-excerpt {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-light);
        }
        .related-card .card-body .card-meta i {
            margin-right: 4px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0 70px;
            background: var(--bg-dark);
            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: rgba(15, 14, 46, 0.82);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3.6vw, 38px);
            color: var(--text-white);
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(240, 240, 245, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }
        .cta-section .cta-btn.primary {
            background: var(--secondary);
            color: #fff;
        }
        .cta-section .cta-btn.primary:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(233, 69, 96, 0.4);
        }
        .cta-section .cta-btn.outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .cta-section .cta-btn.outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== Footer (共享) ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 240, 245, 0.7);
            padding: 56px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(240, 240, 245, 0.55);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(240, 240, 245, 0.55);
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: rgba(240, 240, 245, 0.45);
        }
        .footer-bottom a {
            color: rgba(240, 240, 245, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list a.nav-cta {
                text-align: center;
                margin-top: 6px;
            }
            .article-banner {
                padding: 40px 0 32px;
            }
            .article-banner h1 {
                font-size: 24px;
            }
            .article-content {
                padding: 24px 20px;
            }
            .article-content .post-body {
                font-size: 16px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 40px 0 50px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-banner .article-meta {
                gap: 12px;
            }
            .article-content {
                padding: 18px 14px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-nav-bottom {
                flex-direction: column;
                align-items: stretch;
            }
            .article-nav-bottom .nav-prev,
            .article-nav-bottom .nav-next {
                justify-content: center;
            }
            .cta-section .cta-btn {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                gap: 24px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #fdcb6e;
            --success: #00b894;
            --bg-body: #f8f9ff;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #2d2b55;
            --bg-section-alt: #f0f0ff;
            --text-primary: #2d2b55;
            --text-secondary: #5a5a7a;
            --text-light: #8e8ea0;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --border-light: #f0f0f8;
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 20px 50px rgba(108, 92, 231, 0.18);
            --shadow-hover: 0 16px 40px rgba(108, 92, 231, 0.22);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-width: 1240px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-element: 24px;
        }

        /* ===== 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-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.3px;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(108, 92, 231, 0.35);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(108, 92, 231, 0.25);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn-white:hover {
            background: var(--primary-light);
            color: #fff;
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 13px;
            gap: 6px;
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 17px;
        }
        .btn i {
            font-size: 0.9em;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--primary-light);
            color: #fff;
        }
        .badge-hot {
            background: var(--secondary);
            color: #fff;
        }
        .badge-new {
            background: var(--success);
            color: #fff;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--text-primary);
        }
        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        /* ===== 标签云 ===== */
        .tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-title a {
            color: var(--text-primary);
        }
        .card-title a:hover {
            color: var(--primary);
        }
        .card-text {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }

        /* ===== 板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header .badge {
            margin-bottom: 12px;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }

        /* ===== 分段间距 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark .section-header h2,
        .section-dark .section-header p {
            color: var(--text-white);
        }

        /* ===== 头部 / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover span {
            background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            padding: 10px 18px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a i {
            font-size: 14px;
        }
        .nav-list a:hover {
            background: var(--bg-section-alt);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.3);
        }
        .nav-list a.active:hover {
            background: var(--primary-dark);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 10px 24px;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.25);
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.35);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3d3a6e 100%);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(108, 92, 231, 0.25), transparent 70%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--text-white);
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .page-banner .banner-meta {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .banner-meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb span {
            color: var(--accent);
        }

        /* ===== 攻略分类导航 ===== */
        .guide-categories {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 32px;
        }
        .guide-categories a {
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .guide-categories a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .guide-categories a.active-cat {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== 攻略卡片 ===== */
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .guide-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .guide-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .guide-card .card-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(transparent, rgba(45, 43, 85, 0.85));
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }
        .guide-card .card-overlay .badge {
            font-size: 11px;
            padding: 3px 12px;
        }
        .guide-card .card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body .card-title {
            font-size: 17px;
            margin-bottom: 6px;
        }
        .guide-card .card-body .card-text {
            font-size: 13px;
            color: var(--text-secondary);
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .guide-card .card-footer .author {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-footer .author img {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            object-fit: cover;
        }

        /* ===== 攻略列表（图文混排） ===== */
        .guide-list-item {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .guide-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .guide-list-item .list-img {
            flex-shrink: 0;
            width: 200px;
            aspect-ratio: 16/10;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .guide-list-item .list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-list-item:hover .list-img img {
            transform: scale(1.05);
        }
        .guide-list-item .list-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-list-item .list-body .list-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .guide-list-item .list-body .list-title a {
            color: var(--text-primary);
        }
        .guide-list-item .list-body .list-title a:hover {
            color: var(--primary);
        }
        .guide-list-item .list-body .list-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .guide-list-item .list-body .list-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .guide-list-item .list-body .list-footer {
            display: flex;
            gap: 12px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        /* ===== 攻略技巧 / 步骤 ===== */
        .tip-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .tip-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .tip-card .tip-icon {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 28px;
            color: #fff;
        }
        .tip-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .tip-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 热门攻略排行 ===== */
        .rank-list {
            counter-reset: rank;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            transition: var(--transition);
            counter-increment: rank;
        }
        .rank-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
            border-color: var(--primary-light);
        }
        .rank-item .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--primary);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-num {
            background: var(--primary);
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-num {
            background: var(--primary);
            color: #fff;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 13px;
            color: var(--text-light);
        }
        .rank-item .rank-stats {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
        }
        .rank-item .rank-stats i {
            color: var(--accent);
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--text-primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active {
            border-color: var(--primary);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3d3a6e 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .site-footer .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 14px;
            color: #fff;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand .logo span {
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .guide-list-item {
                flex-direction: column;
            }
            .guide-list-item .list-img {
                width: 100%;
                aspect-ratio: 16/8;
            }
            .page-banner h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                pointer-events: none;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                justify-content: center;
                padding: 14px 18px;
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .page-banner {
                padding: 70px 0 56px;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .page-banner .banner-meta {
                gap: 16px;
                font-size: 13px;
                flex-direction: column;
                align-items: center;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header p {
                font-size: 15px;
            }
            .guide-categories {
                gap: 8px;
            }
            .guide-categories a {
                padding: 8px 16px;
                font-size: 13px;
            }
            .rank-item {
                padding: 12px 16px;
                flex-wrap: wrap;
            }
            .rank-item .rank-stats {
                width: 100%;
                margin-left: 52px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .tip-card {
                padding: 20px 16px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 18px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 0 18px 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .guide-card .card-body {
                padding: 14px 16px 18px;
            }
            .guide-card .card-body .card-title {
                font-size: 16px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 15px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .footer-col h4 {
                font-size: 15px;
            }
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 筛选搜索 ===== */
        .search-bar {
            display: flex;
            max-width: 520px;
            margin: 24px auto 0;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            overflow: hidden;
            backdrop-filter: blur(4px);
        }
        .search-bar input {
            flex: 1;
            padding: 14px 20px;
            background: transparent;
            color: #fff;
            font-size: 15px;
            border: none;
            outline: none;
        }
        .search-bar input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .search-bar button {
            padding: 14px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-bar button:hover {
            background: var(--primary-dark);
        }

        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .pagination a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination a.active-page {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination a.next-prev {
            width: auto;
            padding: 0 18px;
        }