/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --c-primary: #2563eb;
  --c-primary-light: #3b82f6;
  --c-primary-dark: #1d4ed8;
  --c-secondary: #f59e0b;
  --c-secondary-light: #fbbf24;
  --c-accent: #8b5cf6;
  --c-bg: #ffffff;
  --c-bg-alt: #f8fafc;
  --c-bg-dark: #0f172a;
  --c-text: #1e293b;
  --c-text-light: #64748b;
  --c-text-white: #f1f5f9;
  --c-border: #e2e8f0;
  --c-border-light: #f1f5f9;
  --c-success: #10b981;
  --c-danger: #ef4444;
  --c-warning: #f59e0b;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 80px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-primary-dark); }
a:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; border-radius: 2px; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--c-text); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; color: var(--c-text-light); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.section { padding: var(--space-4xl) 0; }
.section-alt { background: var(--c-bg-alt); }
.section-dark { background: var(--c-bg-dark); color: var(--c-text-white); }
.section-dark h2, .section-dark h3, .section-dark p { color: var(--c-text-white); }
.section-title { text-align: center; margin-bottom: var(--space-xl); }
.section-title h2 { margin-bottom: var(--space-sm); }
.section-title p { max-width: 640px; margin: 0 auto; font-size: 1.05rem; }

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  padding: 12px 28px; font-size: 1rem; font-weight: 600; line-height: 1.4;
  border-radius: var(--radius-md); transition: all var(--transition);
  white-space: nowrap; user-select: none;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: var(--c-secondary); color: #fff; }
.btn-secondary:hover { background: #d97706; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; border: 2px solid var(--c-primary); color: var(--c-primary); }
.btn-outline:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: var(--radius-lg); }
.btn-sm { padding: 8px 18px; font-size: 0.875rem; border-radius: var(--radius-sm); }
.btn-icon { width: 44px; height: 44px; padding: 0; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }

/* ===== 标签 & 徽章 ===== */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; font-size: 0.8rem; font-weight: 500;
  border-radius: 999px; background: var(--c-bg-alt); color: var(--c-text-light);
  border: 1px solid var(--c-border); transition: all var(--transition);
}
.tag-primary { background: rgba(37,99,235,0.1); color: var(--c-primary); border-color: rgba(37,99,235,0.2); }
.tag-secondary { background: rgba(245,158,11,0.1); color: #b45309; border-color: rgba(245,158,11,0.2); }
.tag-success { background: rgba(16,185,129,0.1); color: #059669; border-color: rgba(16,185,129,0.2); }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 10px; font-size: 0.75rem; font-weight: 600;
  border-radius: 999px; text-transform: uppercase; letter-spacing: 0.02em;
}
.badge-hot { background: var(--c-danger); color: #fff; }
.badge-new { background: var(--c-success); color: #fff; }
.badge-top { background: var(--c-secondary); color: #fff; }

/* ===== 卡片系统 ===== */
.card {
  background: var(--c-bg); border-radius: var(--radius-md);
  border: 1px solid var(--c-border); overflow: hidden;
  transition: all var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: var(--space-lg); }
.card-title { font-size: 1.1rem; font-weight: 700; margin-bottom: var(--space-sm); }
.card-text { font-size: 0.95rem; color: var(--c-text-light); margin-bottom: var(--space-md); }
.card-footer { padding: var(--space-md) var(--space-lg); border-top: 1px solid var(--c-border); display: flex; justify-content: space-between; align-items: center; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }

/* ===== 导航 ===== */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.02);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg);
}
.logo { display: flex; align-items: center; gap: var(--space-sm); font-size: 1.3rem; font-weight: 800; color: var(--c-text); }
.logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--c-primary), var(--c-accent)); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; font-weight: 700; }
.logo span { background: linear-gradient(135deg, var(--c-primary), var(--c-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-list { display: flex; align-items: center; gap: var(--space-xs); }
.nav-list a {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 18px; font-size: 0.95rem; font-weight: 500;
  color: var(--c-text-light); border-radius: var(--radius-sm);
  transition: all var(--transition); position: relative;
}
.nav-list a:hover { color: var(--c-primary); background: rgba(37,99,235,0.06); }
.nav-list a.active { color: var(--c-primary); background: rgba(37,99,235,0.1); font-weight: 600; }
.nav-list a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--c-primary); border-radius: 999px; }
.header-actions { display: flex; align-items: center; gap: var(--space-md); }
.search-box { display: flex; align-items: center; background: var(--c-bg-alt); border: 1px solid var(--c-border); border-radius: 999px; padding: 0 16px; transition: all var(--transition); }
.search-box:focus-within { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.search-box input { border: none; background: none; padding: 8px 0; font-size: 0.9rem; color: var(--c-text); outline: none; width: 160px; }
.search-box input::placeholder { color: var(--c-text-light); }
.search-box button { color: var(--c-text-light); padding: 8px; font-size: 1rem; transition: color var(--transition); }
.search-box button:hover { color: var(--c-primary); }
.mobile-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--c-text); border-radius: var(--radius-sm); transition: background var(--transition); }
.mobile-toggle:hover { background: var(--c-bg-alt); }

/* ===== Hero 首屏 ===== */
.hero {
  position: relative; min-height: 85vh; display: flex; align-items: center;
  background: var(--c-bg-dark); overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.5; filter: brightness(0.6) saturate(1.2);
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.5) 50%, rgba(37,99,235,0.3) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 720px; padding: var(--space-4xl) 0; }
.hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.12); backdrop-filter: blur(8px); padding: 6px 18px; border-radius: 999px; font-size: 0.85rem; color: var(--c-text-white); border: 1px solid rgba(255,255,255,0.15); margin-bottom: var(--space-lg); }
.hero h1 { font-size: clamp(2.4rem, 6vw, 3.8rem); font-weight: 900; color: #fff; line-height: 1.15; margin-bottom: var(--space-lg); }
.hero h1 span { background: linear-gradient(135deg, var(--c-secondary-light), var(--c-secondary)); -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: 560px; margin-bottom: var(--space-xl); line-height: 1.8; }
.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.hero-stats { display: flex; gap: var(--space-2xl); margin-top: var(--space-2xl); padding-top: var(--space-xl); border-top: 1px solid rgba(255,255,255,0.1); }
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 2rem; font-weight: 800; color: var(--c-secondary); }
.hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 2px; }

/* ===== 特色板块 ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.feature-card {
  background: var(--c-bg); border-radius: var(--radius-md);
  padding: var(--space-xl); border: 1px solid var(--c-border);
  transition: all var(--transition); text-align: center;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-icon {
  width: 64px; height: 64px; margin: 0 auto var(--space-md);
  border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #fff;
}
.feature-icon.blue { background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light)); }
.feature-icon.amber { background: linear-gradient(135deg, var(--c-secondary), #d97706); }
.feature-icon.purple { background: linear-gradient(135deg, var(--c-accent), #7c3aed); }
.feature-card h3 { margin-bottom: var(--space-sm); }
.feature-card p { font-size: 0.95rem; margin-bottom: 0; }

/* ===== 精选游戏分类 ===== */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.category-card {
  position: relative; border-radius: var(--radius-md); overflow: hidden;
  aspect-ratio: 4/3; cursor: pointer; display: block;
  background: var(--c-bg-dark); border: 1px solid var(--c-border);
  transition: all var(--transition);
}
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover img { transform: scale(1.05); }
.category-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.1) 60%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: var(--space-lg); color: #fff;
}
.category-card .overlay h3 { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.category-card .overlay p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 0; }
.category-card .badge { position: absolute; top: var(--space-md); right: var(--space-md); z-index: 2; }

/* ===== 最新资讯列表 ===== */
.news-list { display: flex; flex-direction: column; gap: var(--space-md); }
.news-item {
  display: flex; align-items: flex-start; gap: var(--space-lg);
  padding: var(--space-lg); background: var(--c-bg);
  border-radius: var(--radius-md); border: 1px solid var(--c-border);
  transition: all var(--transition);
}
.news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-item .num { font-size: 1.5rem; font-weight: 800; color: var(--c-primary); opacity: 0.3; min-width: 40px; }
.news-item .info { flex: 1; }
.news-item .info h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.news-item .info h3 a { color: var(--c-text); }
.news-item .info h3 a:hover { color: var(--c-primary); }
.news-item .info p { font-size: 0.9rem; color: var(--c-text-light); margin-bottom: 0; }
.news-item .meta { display: flex; align-items: center; gap: var(--space-md); font-size: 0.8rem; color: var(--c-text-light); margin-top: var(--space-sm); }
.news-empty { text-align: center; padding: var(--space-2xl); color: var(--c-text-light); font-size: 1rem; background: var(--c-bg-alt); border-radius: var(--radius-md); }

/* ===== 数据统计 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.stat-card {
  text-align: center; padding: var(--space-xl);
  background: rgba(255,255,255,0.04); border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
}
.stat-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.stat-card .icon { font-size: 2rem; margin-bottom: var(--space-sm); }
.stat-card .num { font-size: 2.4rem; font-weight: 900; color: var(--c-secondary); }
.stat-card .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* ===== 流程步骤 ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); position: relative; }
.step { text-align: center; position: relative; }
.step-num { width: 56px; height: 56px; margin: 0 auto var(--space-md); border-radius: 50%; background: var(--c-primary); color: #fff; font-size: 1.4rem; font-weight: 800; display: flex; align-items: center; justify-content: center; position: relative; z-index: 1; }
.step::after { content: ''; position: absolute; top: 28px; left: calc(50% + 40px); width: calc(100% - 80px); height: 2px; background: var(--c-border); }
.step:last-child::after { display: none; }
.step h3 { margin-bottom: var(--space-sm); }
.step p { font-size: 0.95rem; margin-bottom: 0; }

/* ===== FAQ ===== */
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-md); }
.faq-item {
  background: var(--c-bg); border-radius: var(--radius-md);
  border: 1px solid var(--c-border); overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--c-primary); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-lg); font-weight: 600; font-size: 1.05rem;
  cursor: pointer; user-select: none; color: var(--c-text);
  transition: background var(--transition);
}
.faq-question:hover { background: var(--c-bg-alt); }
.faq-question .faq-icon { font-size: 1.2rem; color: var(--c-text-light); transition: transform var(--transition); }
.faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 var(--space-lg) var(--space-lg); font-size: 0.95rem; color: var(--c-text-light); line-height: 1.8; display: none; }
.faq-item.open .faq-answer { display: block; }

/* ===== CTA 区块 ===== */
.cta-section {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-accent));
  border-radius: var(--radius-lg); padding: var(--space-3xl) var(--space-xl);
  text-align: center; color: #fff; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.08; mix-blend-mode: overlay;
}
.cta-section h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: var(--space-md); position: relative; z-index: 1; }
.cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto var(--space-xl); position: relative; z-index: 1; }
.cta-section .btn { position: relative; z-index: 1; }
.cta-section .btn-secondary { background: #fff; color: var(--c-primary); }
.cta-section .btn-secondary:hover { background: var(--c-bg-alt); color: var(--c-primary-dark); }
.cta-section .btn-outline { border-color: rgba(255,255,255,0.4); color: #fff; }
.cta-section .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.6); }

/* ===== 页脚 ===== */
footer { background: var(--c-bg-dark); color: var(--c-text-white); padding: var(--space-3xl) 0 var(--space-lg); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-xl); margin-bottom: var(--space-2xl); }
.footer-brand .logo { color: #fff; margin-bottom: var(--space-md); }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.03em; }
.footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: rgba(255,255,255,0.5); transition: all var(--transition); }
.footer-col a:hover { color: var(--c-secondary); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: var(--space-lg); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-md); font-size: 0.85rem; color: rgba(255,255,255,0.35); }
.footer-links { display: flex; gap: var(--space-md); }
.footer-links a { color: rgba(255,255,255,0.35); font-size: 0.85rem; }
.footer-links a:hover { color: var(--c-secondary); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { min-height: 70vh; }
  .hero-stats { gap: var(--space-lg); }
  .steps { gap: var(--space-lg); }
}

@media (max-width: 768px) {
  .nav-list { display: none; }
  .mobile-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .search-box { display: none; }
  .mobile-toggle { display: flex; }
  .hero { min-height: 60vh; }
  .hero h1 { font-size: clamp(1.8rem, 8vw, 2.8rem); }
  .hero p { font-size: 1rem; }
  .hero-stats { flex-wrap: wrap; gap: var(--space-md); }
  .hero-stat { flex: 1; min-width: 80px; }
  .hero-stat .num { font-size: 1.5rem; }
  .card-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: var(--space-xl); }
  .step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { margin: 0 auto; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: var(--space-2xl) 0; }
  .news-item { flex-direction: column; gap: var(--space-sm); }
  .news-item .num { display: none; }
  .cta-section { padding: var(--space-2xl) var(--space-lg); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* 移动端导航抽屉 */
  .mobile-nav {
    display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--c-bg); z-index: 99; padding: var(--space-lg);
    flex-direction: column; gap: var(--space-sm); overflow-y: auto;
  }
  .mobile-nav.open { display: flex; }
  .mobile-nav a {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 14px 18px; font-size: 1.05rem; font-weight: 500;
    color: var(--c-text); border-radius: var(--radius-sm);
    transition: background var(--transition);
  }
  .mobile-nav a:hover { background: var(--c-bg-alt); }
  .mobile-nav a.active { color: var(--c-primary); background: rgba(37,99,235,0.08); }
  .mobile-nav .search-box-mobile { display: flex; margin-top: var(--space-md); background: var(--c-bg-alt); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 0 16px; }
  .mobile-nav .search-box-mobile input { border: none; background: none; padding: 12px 0; font-size: 1rem; color: var(--c-text); outline: none; flex: 1; }
  .mobile-nav .search-box-mobile button { color: var(--c-text-light); padding: 12px; font-size: 1.1rem; }
  .mobile-nav .btn-mobile { margin-top: var(--space-md); width: 100%; justify-content: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 var(--space-md); }
  .hero { min-height: 50vh; }
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 0.9rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .stat-card { padding: var(--space-md); }
  .stat-card .num { font-size: 1.6rem; }
  .section-title p { font-size: 0.9rem; }
  .card-body { padding: var(--space-md); }
  .faq-question { padding: var(--space-md); font-size: 0.95rem; }
  .faq-answer { padding: 0 var(--space-md) var(--space-md); }
}

/* ===== 动画工具 ===== */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* roulang page: article */
:root {
            --primary: #ff6a00;
            --primary-dark: #e55d00;
            --primary-light: #ff8c33;
            --secondary: #1a1a2e;
            --accent: #16213e;
            --bg-main: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border: #e8e8f0;
            --border-light: #f0f0f8;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 48px rgba(255,106,0,0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

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

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
        button { cursor: pointer; background: none; }

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

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
            transition: var(--transition);
        }

        .site-header .container {
            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-primary);
            letter-spacing: -0.3px;
        }

        .logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(255,106,0,0.3);
        }

        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(255,106,0,0.06);
        }

        .nav-list a.active {
            color: var(--primary);
            background: rgba(255,106,0,0.1);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-main);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            transition: var(--transition);
            width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255,106,0,0.1);
        }

        .search-box input {
            background: transparent;
            border: none;
            padding: 0 8px;
            height: 100%;
            width: 100%;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .search-box input::placeholder { color: var(--text-light); }
        .search-box i { color: var(--text-light); font-size: 0.9rem; }

        .btn-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 16px rgba(255,106,0,0.3);
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255,106,0,0.4);
            color: #fff;
        }

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

        .mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); padding: 4px; cursor: pointer; }

        /* ===== Article Page ===== */
        .page-article {
            padding-top: calc(var(--header-h) + 40px);
            padding-bottom: 60px;
        }

        .article-banner {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }

        .article-banner .container { position: relative; z-index: 2; }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
            margin-bottom: 20px;
        }

        .article-breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-breadcrumb a:hover { color: #fff; }
        .article-breadcrumb i { font-size: 0.7rem; }

        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            max-width: 800px;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i { font-size: 0.85rem; }

        .article-tag {
            display: inline-block;
            background: rgba(255,106,0,0.25);
            color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(255,106,0,0.2);
        }

        .article-body-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            margin-top: 40px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
        }

        .article-main .featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
            object-fit: cover;
            max-height: 480px;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content h2, .article-content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-content h2 { font-size: 1.6rem; border-left: 4px solid var(--primary); padding-left: 16px; }
        .article-content h3 { font-size: 1.25rem; }

        .article-content ul, .article-content ol {
            padding-left: 24px;
            margin-bottom: 1.4em;
        }

        .article-content ul li {
            list-style: disc;
            margin-bottom: 0.4em;
        }

        .article-content ol li {
            list-style: decimal;
            margin-bottom: 0.4em;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(255,106,0,0.05);
            padding: 16px 24px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-content a:hover { color: var(--primary-dark); }

        .article-footer-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-share span { font-size: 0.9rem; color: var(--text-light); }

        .article-share a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-main);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .article-nav-links {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .article-nav-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            background: var(--bg-main);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
            flex: 1;
            min-width: 140px;
        }

        .article-nav-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255,106,0,0.04);
        }

        .article-nav-links .nav-next { text-align: right; justify-content: flex-end; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i { color: var(--primary); }

        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .sidebar-list li:last-child { border-bottom: none; }

        .sidebar-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.5;
            transition: var(--transition);
        }

        .sidebar-list a:hover { color: var(--primary); }

        .sidebar-list .list-num {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--text-light);
            flex-shrink: 0;
            border: 1px solid var(--border);
        }

        .sidebar-list li:nth-child(1) .list-num,
        .sidebar-list li:nth-child(2) .list-num,
        .sidebar-list li:nth-child(3) .list-num {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-color: var(--primary);
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags a {
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--bg-main);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.82rem;
            transition: var(--transition);
        }

        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            color: #fff;
            padding: 28px;
            border-radius: var(--radius-md);
            text-align: center;
        }

        .sidebar-cta h4 { font-size: 1.15rem; margin-bottom: 8px; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.8; margin-bottom: 16px; }
        .sidebar-cta .btn-cta { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }
        .sidebar-cta .btn-cta:hover { background: var(--primary); color: #fff; }

        /* ===== Related Section ===== */
        .related-section {
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
        }

        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section h2 i { color: var(--primary); }

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

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

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

        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
        }

        .related-card .card-body {
            padding: 18px 20px;
        }

        .related-card .card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body h4 a { color: var(--text-primary); }
        .related-card .card-body h4 a:hover { color: var(--primary); }

        .related-card .card-body .meta {
            font-size: 0.82rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
        }

        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-box .btn-cta { display: inline-flex; }

        /* ===== Footer ===== */
        footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
            margin-top: 60px;
        }

        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        footer .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        footer .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        footer .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; }

        footer .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        footer .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }

        footer .footer-col a:hover { color: var(--primary); padding-left: 4px; }

        footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding: 24px 0;
            font-size: 0.85rem;
        }

        footer .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        footer .footer-bottom .footer-links a { color: rgba(255,255,255,0.5); font-size: 0.82rem; }
        footer .footer-bottom .footer-links a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-body-wrapper {
                grid-template-columns: 1fr;
            }
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .search-box { width: 140px; }
        }

        @media (max-width: 768px) {
            :root { --header-h: 64px; }

            .nav-list { display: none; }
            .mobile-toggle { display: block; }

            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 2px;
            }

            .nav-list.open a { padding: 12px 16px; width: 100%; }
            .nav-list.open a.active::after { display: none; }

            .search-box { width: 120px; }
            .search-box input { font-size: 0.82rem; }
            .btn-cta { padding: 8px 16px; font-size: 0.82rem; }
            .btn-cta span { display: none; }

            .article-banner h1 { font-size: 1.6rem; }
            .article-main { padding: 24px 20px; }
            .article-content { font-size: 1rem; }

            footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner { padding: 40px 0 32px; }
            .article-banner h1 { font-size: 1.35rem; }
            .article-meta { gap: 10px 16px; font-size: 0.82rem; }
            .article-main { padding: 16px; border-radius: var(--radius-md); }
            .article-content h2 { font-size: 1.3rem; }
            .search-box { width: 90px; }
            .header-actions .btn-cta { padding: 8px 12px; font-size: 0.78rem; }
            .related-grid { grid-template-columns: 1fr; }
            .article-nav-links a { font-size: 0.82rem; padding: 10px 14px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #F59E0B;
            --primary-light: #FCD34D;
            --primary-dark: #D97706;
            --secondary: #1E3A5F;
            --secondary-light: #2D5A8A;
            --secondary-dark: #0F2440;
            --accent: #10B981;
            --accent-light: #34D399;
            --bg: #FFFFFF;
            --bg-alt: #F8FAFC;
            --bg-dark: #0F172A;
            --text: #1A202C;
            --text-light: #4A5568;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 40px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-w: 1280px;
            --header-h: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1em; color: var(--text-light); }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: #fff; }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 48px;
            font-size: 1.1rem;
        }
        .section-title-left { text-align: left; margin-bottom: 12px; }
        .section-sub-left { text-align: left; margin-left: 0; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-white {
            background: #fff;
            color: var(--secondary);
        }
        .btn-white:hover {
            background: var(--bg-alt);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.10);
        }
        .btn-sm { padding: 10px 22px; font-size: 0.9rem; }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .tag-blue { background: #DBEAFE; color: #1D4ED8; }
        .tag-green { background: #D1FAE5; color: #047857; }
        .tag-purple { background: #EDE9FE; color: #7C3AED; }
        .tag-red { background: #FEE2E2; color: #DC2626; }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
        }
        .badge-hot { background: #EF4444; }
        .badge-new { background: #10B981; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--secondary);
            white-space: nowrap;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo span { color: var(--secondary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .nav-list a:hover { color: var(--primary); background: rgba(245,158,11,0.08); }
        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(245,158,11,0.25);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(245,158,11,0.10);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 10px 8px;
            outline: none;
            min-width: 140px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .search-box button {
            border: none;
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            padding: 8px 0;
            font-size: 1rem;
            transition: color var(--transition);
        }
        .search-box button:hover { color: var(--primary); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--text); cursor: pointer; padding: 4px; }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.4;
            mix-blend-mode: overlay;
        }
        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30,58,95,0.92) 0%, rgba(15,36,64,0.80) 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            color: #fff;
            text-align: center;
            padding: 80px 24px;
        }
        .category-hero h1 {
            color: #fff;
            margin-bottom: 16px;
            font-size: clamp(2.2rem, 5vw, 3.4rem);
        }
        .category-hero h1 span { color: var(--primary); }
        .category-hero p {
            color: rgba(255,255,255,0.75);
            font-size: 1.15rem;
            max-width: 620px;
            margin: 0 auto 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }
        .hero-tags .tag {
            background: rgba(255,255,255,0.12);
            color: rgba(255,255,255,0.85);
            padding: 6px 18px;
            font-size: 0.85rem;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255,255,255,0.08);
        }

        /* ===== Game Grid ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .game-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .game-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .game-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .game-card:hover .game-card-img img { transform: scale(1.05); }
        .game-card-badges {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
        }
        .game-card-body {
            padding: 20px 22px 24px;
        }
        .game-card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .game-card-body h3 a { color: var(--text); }
        .game-card-body h3 a:hover { color: var(--primary); }
        .game-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .game-card-meta i { margin-right: 4px; }
        .game-card-desc {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .game-card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
        }
        .game-card-rating i { font-size: 0.85rem; }
        .game-card-btn {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            transition: all var(--transition);
        }
        .game-card-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }

        /* ===== Featured Pick ===== */
        .featured-pick {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--bg-dark);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .featured-pick-img {
            position: relative;
            min-height: 360px;
            overflow: hidden;
        }
        .featured-pick-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .featured-pick-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15,23,42,0.60) 0%, transparent 100%);
        }
        .featured-pick-content {
            padding: 48px 48px 48px 0;
            color: #fff;
        }
        .featured-pick-content .tag { margin-bottom: 12px; }
        .featured-pick-content h2 { color: #fff; margin-bottom: 16px; }
        .featured-pick-content p { color: rgba(255,255,255,0.7); font-size: 1.05rem; }
        .featured-pick-stats {
            display: flex;
            gap: 32px;
            margin: 24px 0;
        }
        .featured-pick-stats div {
            text-align: center;
        }
        .featured-pick-stats strong {
            display: block;
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 800;
        }
        .featured-pick-stats span {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 18px 0;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
        }
        .filter-bar label {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            margin-right: 4px;
        }
        .filter-btn {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-light);
            cursor: pointer;
            transition: all var(--transition);
        }
        .filter-btn:hover { border-color: var(--primary); color: var(--primary); }
        .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Stats / Numbers ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-card {
            padding: 32px 20px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 6px;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        /* ===== Reviews / Testimonials ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .review-card:hover { box-shadow: var(--shadow-md); }
        .review-stars {
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 12px;
        }
        .review-text {
            font-size: 0.95rem;
            color: var(--text-light);
            font-style: italic;
            margin-bottom: 16px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 1.1rem;
        }
        .review-name { font-weight: 600; font-size: 0.95rem; }
        .review-title { font-size: 0.8rem; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            background: #fff;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: #fff;
            transition: background var(--transition);
        }
        .faq-question:hover { background: var(--bg-alt); }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-light);
            font-size: 0.95rem;
            display: none;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
            border-radius: var(--radius);
            margin: 0 24px;
        }
        .cta-section h2 { color: #fff; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 28px; }

        /* ===== Footer ===== */
        footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            margin-bottom: 28px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.8; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-links { display: flex; gap: 16px; }
        .footer-links a { color: rgba(255,255,255,0.4); transition: color var(--transition); }
        .footer-links a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
            .footer-brand { grid-column: 1 / -1; }
            .featured-pick { grid-template-columns: 1fr; }
            .featured-pick-content { padding: 32px 28px; }
            .featured-pick-img { min-height: 280px; }
            .featured-pick-img::after { background: linear-gradient(0deg, rgba(15,23,42,0.70) 0%, transparent 100%); }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-toggle { display: block; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0,0,0,0.10);
                border-bottom: 1px solid var(--border);
            }
            .nav-list.open a { padding: 12px 18px; width: 100%; }
            .search-box input { min-width: 100px; }
            .header-actions .btn { display: none; }
            .category-hero { min-height: 320px; }
            .category-hero .container { padding: 60px 24px; }
            .game-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .review-grid { grid-template-columns: 1fr; }
            .cta-section { margin: 0 16px; padding: 48px 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .section { padding: 56px 0; }
            .filter-bar { gap: 8px; }
            .filter-btn { padding: 6px 14px; font-size: 0.82rem; }
        }

        @media (max-width: 520px) {
            :root { --header-h: 64px; }
            .header-inner { padding: 0 16px; }
            .logo { font-size: 1.1rem; }
            .logo-icon { width: 34px; height: 34px; font-size: 1.1rem; }
            .search-box input { min-width: 80px; font-size: 0.82rem; }
            .game-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stat-card { padding: 20px 16px; }
            .stat-card .stat-number { font-size: 2rem; }
            .featured-pick-stats { gap: 20px; flex-wrap: wrap; }
            .featured-pick-stats strong { font-size: 1.4rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-links { flex-wrap: wrap; justify-content: center; }
            .section-title { font-size: 1.6rem; }
            .category-hero h1 { font-size: 1.8rem; }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Skeleton / Loading ===== */
        .skeleton {
            background: linear-gradient(90deg, var(--bg-alt) 25%, #EDF2F7 50%, var(--bg-alt) 75%);
            background-size: 200% 100%;
            animation: shimmer 1.4s ease infinite;
            border-radius: var(--radius-xs);
        }
        @keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }