/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --clr-bg: #0a0e1a;
  --clr-bg-alt: #111827;
  --clr-bg-card: #141a2b;
  --clr-bg-card-hover: #1a2238;
  --clr-bg-nav: rgba(10, 14, 26, 0.92);
  --clr-bg-footer: #070a14;
  --clr-primary: #e63946;
  --clr-primary-hover: #ff5a67;
  --clr-accent: #f0a500;
  --clr-accent-hover: #ffc233;
  --clr-text: #f0f4ff;
  --clr-text-secondary: #8892b0;
  --clr-text-muted: #5a6480;
  --clr-border: #1e2a4a;
  --clr-border-light: #2a3a5e;
  --clr-success: #2ecc71;
  --clr-info: #3498db;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(230,57,70,0.15);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --container-max: 1200px;
  --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-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
}
a { color: var(--clr-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-accent-hover); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { 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: 1.25; font-weight: 700; color: var(--clr-text); }
h1 { font-size: clamp(2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
p { margin-bottom: 1rem; color: var(--clr-text-secondary); }
p:last-child { margin-bottom: 0; }
::selection { background: var(--clr-primary); color: #fff; }
:focus-visible { outline: 2px solid var(--clr-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
@media (max-width: 640px) {
  .container { padding: 0 var(--space-md); }
}

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--clr-bg-nav);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: -0.02em;
}
.logo i { color: var(--clr-primary); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo:hover { color: var(--clr-text); }
.nav-desktop { display: flex; align-items: center; gap: var(--space-xl); }
.nav-desktop a {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--clr-text-secondary);
  padding: var(--space-sm) 0;
  transition: color var(--transition);
}
.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-primary);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-desktop a:hover { color: var(--clr-text); }
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop a.active { color: var(--clr-text); }
.nav-desktop a.active::after { width: 100%; background: var(--clr-accent); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1.4rem;
  background: var(--clr-primary);
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.nav-cta i { font-size: 0.85rem; }
.nav-cta:hover { background: var(--clr-primary-hover); color: #fff !important; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(230,57,70,0.35); }
.nav-cta::after { display: none !important; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-sm); cursor: pointer; }
.menu-toggle span { display: block; width: 26px; height: 2px; background: var(--clr-text); border-radius: 2px; transition: var(--transition); }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Mobile Nav Drawer ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--clr-bg-nav);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: var(--space-xl) var(--space-lg);
  border-bottom: 1px solid var(--clr-border);
  transform: translateY(-120%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
}
.mobile-nav.open { transform: translateY(0); }
.mobile-nav a {
  display: block;
  padding: var(--space-md) 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--clr-text-secondary);
  border-bottom: 1px solid var(--clr-border);
  transition: color var(--transition);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--clr-text); }
.mobile-nav a.active { color: var(--clr-accent); }
.mobile-nav .nav-cta { display: inline-flex; margin-top: var(--space-md); width: auto; }

/* ===== Bottom Tab Nav (Mobile) ===== */
.bottom-tabs {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background: var(--clr-bg-nav);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-sm) 0;
  padding-bottom: max(var(--space-sm), env(safe-area-inset-bottom));
}
.bottom-tabs-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  max-width: 500px;
  margin: 0 auto;
}
.bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-xs) var(--space-md);
  color: var(--clr-text-muted);
  font-size: 0.7rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.bottom-tab i { font-size: 1.25rem; transition: color var(--transition); }
.bottom-tab.active { color: var(--clr-accent); }
.bottom-tab.active i { color: var(--clr-accent); }
.bottom-tab.active::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 0 0 3px 3px;
}
.bottom-tab:hover { color: var(--clr-text); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + var(--space-3xl)) 0 var(--space-3xl);
  overflow: hidden;
  background: radial-gradient(ellipse at 20% 50%, rgba(230,57,70,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 30%, rgba(240,165,0,0.06) 0%, transparent 50%),
              var(--clr-bg);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 1.2rem;
  background: rgba(230,57,70,0.12);
  border: 1px solid rgba(230,57,70,0.25);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-primary);
  margin-bottom: var(--space-xl);
}
.hero-badge i { font-size: 0.75rem; }
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.8rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-hover);
  border-color: var(--clr-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(230,57,70,0.3);
}
.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border-color: var(--clr-border-light);
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(240,165,0,0.1);
}
.btn-glow {
  box-shadow: 0 0 30px rgba(230,57,70,0.2);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl) var(--space-3xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--clr-border);
}
.hero-stat { text-align: center; }
.hero-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1.2;
  font-family: var(--font-mono);
}
.hero-stat-number .accent { color: var(--clr-primary); }
.hero-stat-label {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-top: var(--space-xs);
}

/* ===== Section ===== */
.section {
  padding: var(--space-4xl) 0;
}
.section-alt { background: var(--clr-bg-alt); }
.section-dark { background: var(--clr-bg-footer); }
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}
.section-header h2 { margin-bottom: var(--space-md); }
.section-header p { color: var(--clr-text-secondary); font-size: 1.05rem; }
.section-tag {
  display: inline-block;
  padding: 0.25rem 1rem;
  background: rgba(240,165,0,0.1);
  border: 1px solid rgba(240,165,0,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
  letter-spacing: 0.04em;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}
.feature-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover { border-color: var(--clr-border-light); transform: translateY(-4px); box-shadow: var(--shadow-md), var(--shadow-glow); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  background: rgba(230,57,70,0.1);
  border-radius: var(--radius-sm);
  font-size: 1.6rem;
  color: var(--clr-primary);
  transition: all var(--transition);
}
.feature-card:hover .feature-icon { background: rgba(230,57,70,0.2); transform: scale(1.05); }
.feature-card h3 { margin-bottom: var(--space-sm); }
.feature-card p { font-size: 0.95rem; margin-bottom: 0; }

/* ===== Category Highlight ===== */
.category-highlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.category-highlight-content h2 { margin-bottom: var(--space-md); }
.category-highlight-content p { font-size: 1.05rem; margin-bottom: var(--space-lg); }
.category-highlight-list { display: flex; flex-direction: column; gap: var(--space-md); margin-bottom: var(--space-xl); }
.category-highlight-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.category-highlight-item:hover { border-color: var(--clr-accent); background: var(--clr-bg-card-hover); }
.category-highlight-item i { color: var(--clr-accent); font-size: 1.1rem; width: 24px; text-align: center; }
.category-highlight-item span { font-weight: 500; color: var(--clr-text); }
.category-highlight-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.category-highlight-visual .placeholder-content {
  text-align: center;
  padding: var(--space-2xl);
}
.category-highlight-visual .placeholder-content i {
  font-size: 3.5rem;
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
  opacity: 0.6;
}
.category-highlight-visual .placeholder-content h4 {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
}
.category-highlight-visual .placeholder-content p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  max-width: 280px;
  margin: 0 auto;
}
.category-highlight-visual .corner-deco {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  gap: var(--space-sm);
}
.category-highlight-visual .corner-deco span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-primary);
  opacity: 0.3;
}

/* ===== News / CMS List ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}
.news-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover { border-color: var(--clr-border-light); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.news-card-top {
  position: relative;
  height: 190px;
  background: var(--clr-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.news-card-top .card-img-placeholder {
  font-size: 2.8rem;
  color: var(--clr-border-light);
  opacity: 0.4;
}
.news-card-top .card-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 0.2rem 0.8rem;
  background: var(--clr-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}
.news-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
  flex: 1;
}
.news-card-body h3 a { color: var(--clr-text); }
.news-card-body h3 a:hover { color: var(--clr-accent); }
.news-card-body p {
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--clr-border);
}
.news-card-meta i { margin-right: var(--space-xs); }
.news-card-meta .meta-date { display: flex; align-items: center; gap: var(--space-xs); }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  background: var(--clr-bg-card);
  border: 1px dashed var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text-muted);
}
.news-empty i { font-size: 2.5rem; margin-bottom: var(--space-md); opacity: 0.4; }

/* ===== Stats / Data Section ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}
.stat-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  transition: all var(--transition);
}
.stat-card:hover { border-color: var(--clr-border-light); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-card-icon {
  font-size: 1.8rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
}
.stat-card-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--clr-text);
  font-family: var(--font-mono);
  line-height: 1.2;
  margin-bottom: var(--space-xs);
}
.stat-card-number .accent { color: var(--clr-primary); }
.stat-card-label {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
}

/* ===== Advantages ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}
.advantage-card {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.advantage-card:hover { border-color: var(--clr-border-light); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.advantage-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--clr-primary);
  font-family: var(--font-mono);
  line-height: 1;
  opacity: 0.5;
  min-width: 48px;
}
.advantage-card-body h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); }
.advantage-card-body p { font-size: 0.92rem; margin-bottom: 0; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.faq-item {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--clr-border-light); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  font-weight: 600;
  color: var(--clr-text);
  cursor: pointer;
  transition: color var(--transition);
  user-select: none;
}
.faq-question:hover { color: var(--clr-accent); }
.faq-question i { font-size: 1rem; color: var(--clr-text-muted); transition: transform var(--transition); }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--clr-accent); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
  padding: 0 var(--space-lg);
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 var(--space-lg) var(--space-lg);
}
.faq-answer p { font-size: 0.95rem; color: var(--clr-text-secondary); margin-bottom: 0; }

/* ===== CTA ===== */
.cta-box {
  background: linear-gradient(135deg, rgba(230,57,70,0.08), rgba(240,165,0,0.06));
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl) var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -30%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(230,57,70,0.06), transparent);
  pointer-events: none;
}
.cta-box h2 { margin-bottom: var(--space-md); }
.cta-box p { font-size: 1.05rem; max-width: 540px; margin: 0 auto var(--space-xl); color: var(--clr-text-secondary); }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-md); }

/* ===== Footer ===== */
.footer {
  background: var(--clr-bg-footer);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-3xl) 0 var(--space-2xl);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer-brand .logo { margin-bottom: var(--space-md); }
.footer-brand p { font-size: 0.92rem; color: var(--clr-text-muted); max-width: 320px; }
.footer-col h4 { font-size: 0.95rem; margin-bottom: var(--space-lg); color: var(--clr-text); }
.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  padding: var(--space-xs) 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--clr-accent); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--clr-border);
  font-size: 0.85rem;
  color: var(--clr-text-muted);
}
.footer-bottom-links { display: flex; gap: var(--space-lg); }
.footer-bottom-links a { color: var(--clr-text-muted); font-size: 0.85rem; }
.footer-bottom-links a:hover { color: var(--clr-accent); }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-border-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .category-highlight { grid-template-columns: 1fr; }
  .category-highlight-visual { min-height: 280px; order: -1; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .nav-desktop { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav { display: block; }
  .bottom-tabs { display: block; }
  body { padding-bottom: 70px; }
  .hero { min-height: auto; padding: calc(var(--header-h) + var(--space-2xl)) 0 var(--space-2xl); }
  .hero-stats { gap: var(--space-xl); }
  .section { padding: var(--space-3xl) 0; }
  .features-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
  .footer-bottom-links { justify-content: center; }
  .category-highlight-visual { min-height: 220px; }
  .cta-box { padding: var(--space-2xl) var(--space-lg); }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 0.95rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; justify-content: center; }
  .hero-stats { flex-direction: column; gap: var(--space-lg); align-items: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .stat-card-number { font-size: 1.8rem; }
  .news-card-top { height: 150px; }
  .section-header p { font-size: 0.95rem; }
  .bottom-tab { font-size: 0.65rem; }
  .bottom-tab i { font-size: 1.1rem; }
}

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-up { animation: fadeUp 0.6s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
:root {
  --primary: #e50914;
  --primary-dark: #b20710;
  --primary-light: #ff3b3b;
  --accent: #ffd700;
  --accent-dark: #daa520;
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a2e;
  --bg-section: #0f0f18;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0b0;
  --text-muted: #6a6a7a;
  --border-color: #2a2a3a;
  --border-light: #3a3a4a;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --container-width: 1200px;
  --header-height: 72px;
}

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

html { scroll-behavior: smooth; }

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

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

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

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  transition: var(--transition);
}

.logo i {
  color: var(--primary);
  font-size: 1.8rem;
  filter: drop-shadow(0 0 12px rgba(229, 9, 20, 0.4));
}

.logo span {
  background: linear-gradient(135deg, #f0f0f0 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo:hover { opacity: 0.9; transform: scale(1.02); }

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-desktop a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: var(--transition);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-desktop a:hover { color: var(--text-primary); }
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop a.active { color: var(--text-primary); }
.nav-desktop a.active::after { width: 100%; }

.nav-desktop .nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(229, 9, 20, 0.3);
  transition: var(--transition);
}

.nav-desktop .nav-cta::after { display: none; }
.nav-desktop .nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(229, 9, 20, 0.5);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.menu-toggle span {
  width: 26px;
  height: 2.5px;
  background: var(--text-primary);
  border-radius: 4px;
  transition: var(--transition);
}

.menu-toggle:hover { background: rgba(255,255,255,0.05); }

/* ===== Mobile Bottom Tab ===== */
.mobile-bottom-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(10, 10, 15, 0.96);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-top: 1px solid var(--border-color);
  padding: 8px 0 env(safe-area-inset-bottom, 8px);
  justify-content: space-around;
  align-items: center;
}

.mobile-bottom-tab a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.mobile-bottom-tab a i { font-size: 1.25rem; transition: var(--transition); }
.mobile-bottom-tab a span { font-size: 0.65rem; }
.mobile-bottom-tab a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.mobile-bottom-tab a.active { color: var(--primary); }
.mobile-bottom-tab a.active i { text-shadow: 0 0 20px rgba(229, 9, 20, 0.4); }
.mobile-bottom-tab a.active::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 0 0 4px 4px;
}

/* ===== Mobile Drawer ===== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 998;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 40px 24px;
  flex-direction: column;
  gap: 12px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer.open { transform: translateX(0); }

.mobile-drawer a {
  color: var(--text-secondary);
  font-size: 1.2rem;
  font-weight: 600;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-drawer a i { width: 28px; text-align: center; font-size: 1.1rem; }

.mobile-drawer a:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.mobile-drawer a.active { background: rgba(229, 9, 20, 0.1); color: var(--primary); }

.mobile-drawer .nav-cta-mobile {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important;
  justify-content: center;
  margin-top: 12px;
  box-shadow: 0 4px 20px rgba(229, 9, 20, 0.3);
}

.mobile-drawer .nav-cta-mobile:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-2px);
}

/* ===== Article Hero ===== */
.article-hero {
  padding: 140px 0 60px;
  position: relative;
  background: linear-gradient(180deg, rgba(229, 9, 20, 0.08) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-color);
}

.article-hero .container {
  max-width: 860px;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--accent); }
.article-breadcrumb .sep { color: var(--text-muted); opacity: 0.4; }
.article-breadcrumb .current { color: var(--text-secondary); }

.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(229, 9, 20, 0.15);
  color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(229, 9, 20, 0.2);
}

.article-category-badge i { font-size: 0.75rem; }

.article-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #f0f0f0 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.article-meta i { font-size: 0.8rem; color: var(--primary); }

/* ===== Article Content ===== */
.article-content-section {
  padding: 60px 0 80px;
}

.article-content-section .container {
  max-width: 860px;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.article-body p {
  margin-bottom: 1.6em;
}

.article-body h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2em 0 0.8em;
  letter-spacing: -0.3px;
}

.article-body h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.8em 0 0.6em;
}

.article-body ul, .article-body ol {
  margin: 0 0 1.6em 1.8em;
  list-style: disc;
}

.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.5em; }

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(229, 9, 20, 0.06);
  padding: 20px 24px;
  margin: 1.6em 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-body code {
  background: rgba(255,255,255,0.05);
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
  border: 1px solid var(--border-color);
}

.article-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
  overflow-x: auto;
  margin: 1.6em 0;
  font-size: 0.9rem;
}

.article-body pre code { background: none; border: none; padding: 0; }

.article-body img {
  border-radius: var(--radius);
  margin: 2em auto;
  box-shadow: var(--shadow);
  max-width: 100%;
}

.article-body a { color: var(--accent); border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--accent); color: var(--primary-light); }

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 0.9rem;
}

.article-body th, .article-body td {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.article-body th {
  background: rgba(229, 9, 20, 0.1);
  color: var(--text-primary);
  font-weight: 600;
}

.article-body td { color: var(--text-secondary); }

/* ===== Article Footer / Navigation ===== */
.article-footer-nav {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  margin-top: 60px;
}

.article-footer-nav .container {
  max-width: 860px;
}

.article-footer-nav .nav-links {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.article-footer-nav .nav-link-item {
  flex: 1;
  min-width: 200px;
}

.article-footer-nav .nav-link-item a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.article-footer-nav .nav-link-item a:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.article-footer-nav .nav-link-item .direction {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.article-footer-nav .nav-link-item .title {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.article-footer-nav .nav-link-item a:hover .title { color: var(--accent); }

/* ===== Not Found ===== */
.not-found {
  text-align: center;
  padding: 100px 0;
}

.not-found i {
  font-size: 4rem;
  color: var(--primary);
  margin-bottom: 24px;
  opacity: 0.6;
}

.not-found h2 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.not-found p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

.not-found .btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(229, 9, 20, 0.3);
}

.not-found .btn-back:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(229, 9, 20, 0.5);
  color: #fff;
}

/* ===== Related Articles ===== */
.related-section {
  padding: 60px 0 80px;
  background: var(--bg-section);
  border-top: 1px solid var(--border-color);
}

.related-section .section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.related-section .section-title i { color: var(--primary); font-size: 1.4rem; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.related-card .cat-tag {
  font-size: 0.75rem;
  color: var(--primary-light);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.related-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
}

.related-card h3 a { color: var(--text-primary); }
.related-card h3 a:hover { color: var(--accent); }

.related-card .excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
  margin-bottom: 68px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 16px; font-size: 1.3rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; max-width: 360px; }

.footer-col h4 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-col a i { width: 20px; text-align: center; font-size: 0.85rem; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-muted); font-size: 0.8rem; }
.footer-bottom-links a:hover { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-hero h1 { font-size: 2.2rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .header { height: 64px; }
  .nav-desktop { display: none; }
  .menu-toggle { display: flex; }
  .mobile-bottom-tab { display: flex; }
  .mobile-drawer { display: flex; }

  .article-hero { padding: 110px 0 40px; }
  .article-hero h1 { font-size: 1.6rem; }
  .article-body { font-size: 0.95rem; }
  .article-body h2 { font-size: 1.4rem; }
  .article-body h3 { font-size: 1.2rem; }

  .article-meta { gap: 16px; font-size: 0.8rem; }
  .article-meta span { gap: 4px; }

  .article-footer-nav .nav-links { flex-direction: column; }
  .article-footer-nav .nav-link-item { min-width: auto; }

  .related-grid { grid-template-columns: 1fr; }
  .related-section .section-title { font-size: 1.4rem; }

  .footer { padding: 40px 0 90px; margin-bottom: 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }
  .footer-bottom-links { flex-wrap: wrap; justify-content: center; gap: 12px; }

  .not-found h2 { font-size: 1.5rem; }
  .not-found p { font-size: 1rem; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-hero { padding: 100px 0 32px; }
  .article-hero h1 { font-size: 1.3rem; }
  .article-body { font-size: 0.9rem; }
  .article-body h2 { font-size: 1.2rem; }
  .article-body h3 { font-size: 1.05rem; }
  .article-body blockquote { padding: 16px 18px; }

  .related-card { padding: 18px; }
  .related-card h3 { font-size: 1rem; }

  .mobile-bottom-tab a { padding: 4px 12px; }
  .mobile-bottom-tab a i { font-size: 1.1rem; }
  .mobile-bottom-tab a span { font-size: 0.6rem; }

  .not-found { padding: 60px 0; }
  .not-found i { font-size: 3rem; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #00b4ff;
            --primary-dark: #0090cc;
            --primary-light: #66d4ff;
            --secondary: #8b5cf6;
            --secondary-dark: #6d3fd1;
            --accent: #ff4d4d;
            --accent-dark: #d93a3a;
            --bg-dark: #0b0f1e;
            --bg-card: #111627;
            --bg-card-hover: #181f36;
            --bg-section: #0d1225;
            --bg-hero: #070a14;
            --text-white: #f0f4ff;
            --text-light: #bcc4dc;
            --text-muted: #7a82a0;
            --border-color: #1e2540;
            --border-light: #2a3355;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(0, 180, 255, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --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-sans);
            background: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.1rem, 2.5vw, 1.5rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 30, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-h);
            transition: background var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .logo:hover {
            opacity: 0.85;
            color: var(--text-white);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-desktop a.active {
            color: var(--primary);
            background: rgba(0, 180, 255, 0.1);
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-desktop .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            margin-left: 8px;
        }
        .nav-desktop .nav-cta i {
            font-size: 0.9rem;
        }
        .nav-desktop .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 180, 255, 0.3);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .menu-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile Nav Drawer */
        .nav-mobile {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(11, 15, 30, 0.98);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 20px 24px;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
            transform: translateY(-110%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .nav-mobile.open {
            transform: translateY(0);
        }
        .nav-mobile a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-white);
        }
        .nav-mobile a.active {
            color: var(--primary);
            background: rgba(0, 180, 255, 0.08);
        }
        .nav-mobile .nav-cta {
            background: var(--primary);
            color: #fff !important;
            justify-content: center;
            font-weight: 600;
            margin-top: 8px;
        }
        .nav-mobile .nav-cta:hover {
            background: var(--primary-dark);
        }

        /* Mobile Bottom Tab */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 30, 0.96);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-color);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            font-size: 0.7rem;
            color: var(--text-muted);
            transition: color var(--transition);
            min-width: 56px;
        }
        .bottom-tab a i {
            font-size: 1.2rem;
            transition: color var(--transition);
        }
        .bottom-tab a:hover,
        .bottom-tab a.active {
            color: var(--primary);
        }
        .bottom-tab a.active i {
            color: var(--primary);
        }
        .bottom-tab .tab-cta {
            background: var(--primary);
            color: #fff !important;
            border-radius: 50%;
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            margin-top: -8px;
            box-shadow: 0 4px 20px rgba(0, 180, 255, 0.3);
        }
        .bottom-tab .tab-cta i {
            font-size: 1.2rem;
            color: #fff;
        }
        .bottom-tab .tab-cta:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

        /* ===== Hero (分类页) ===== */
        .category-hero {
            padding: 140px 0 80px;
            background: var(--bg-hero);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 180, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .category-hero .breadcrumb a {
            color: var(--text-muted);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--primary);
        }
        .category-hero .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .category-hero .breadcrumb .current {
            color: var(--text-light);
        }
        .category-hero h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-white) 30%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .category-hero .hero-stats .stat-item {
            text-align: center;
        }
        .category-hero .hero-stats .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            max-width: 560px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-header .tag-line {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(0, 180, 255, 0.1);
            border: 1px solid rgba(0, 180, 255, 0.2);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== Game Tags / 分类标签 ===== */
        .game-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin: 0 auto 48px;
            max-width: 700px;
        }
        .game-tags .tag {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
        }
        .game-tags .tag:hover,
        .game-tags .tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 180, 255, 0.2);
            transform: translateY(-2px);
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: linear-gradient(135deg, #1a2240, #0d1225);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--primary);
            position: relative;
        }
        .card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
        }
        .card .card-img .badge.hot {
            background: var(--accent);
        }
        .card .card-img .badge.new {
            background: var(--secondary);
        }
        .card .card-body {
            padding: 20px 22px 24px;
        }
        .card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .card:hover .card-body h3 {
            color: var(--primary);
        }
        .card .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
        }
        .card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .card .card-meta .meta-left i {
            margin-right: 4px;
        }
        .card .card-meta .meta-left span {
            display: flex;
            align-items: center;
        }
        .card .card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            transition: gap var(--transition);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card .card-meta .read-more:hover {
            gap: 10px;
        }

        /* ===== List Section (最新攻略) ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .guide-list-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 22px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .guide-list-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateX(4px);
        }
        .guide-list-item .rank {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 36px;
            text-align: center;
        }
        .guide-list-item .rank.top {
            color: var(--accent);
        }
        .guide-list-item .rank.top2 {
            color: var(--primary);
        }
        .guide-list-item .rank.top3 {
            color: var(--secondary);
        }
        .guide-list-item .info {
            flex: 1;
        }
        .guide-list-item .info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .guide-list-item:hover .info h4 {
            color: var(--primary);
        }
        .guide-list-item .info .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .guide-list-item .info .meta i {
            margin-right: 4px;
        }
        .guide-list-item .tag-sm {
            padding: 2px 12px;
            border-radius: 10px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(0, 180, 255, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 180, 255, 0.15);
            white-space: nowrap;
        }

        /* ===== Ranking / 排行榜 ===== */
        .rank-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .rank-grid {
                grid-template-columns: 1fr;
            }
        }
        .rank-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .rank-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .rank-card .r-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 40px;
            text-align: center;
        }
        .rank-card .r-num.gold {
            color: #ffc107;
        }
        .rank-card .r-num.silver {
            color: #adb5bd;
        }
        .rank-card .r-num.bronze {
            color: #cd7f32;
        }
        .rank-card .r-info {
            flex: 1;
        }
        .rank-card .r-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .rank-card .r-info .r-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .rank-card .r-score {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== Feature / 专题 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }
        .feature-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            min-height: 240px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px 30px;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 15, 30, 0.92) 30%, transparent 80%);
            pointer-events: none;
            z-index: 0;
        }
        .feature-card .feature-bg {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, #1a2240, #0d1225);
            z-index: -1;
        }
        .feature-card .feature-bg i {
            position: absolute;
            right: -20px;
            bottom: -20px;
            font-size: 6rem;
            color: rgba(0, 180, 255, 0.06);
        }
        .feature-card>* {
            position: relative;
            z-index: 1;
        }
        .feature-card .feature-tag {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 10px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(0, 180, 255, 0.15);
            color: var(--primary);
            border: 1px solid rgba(0, 180, 255, 0.2);
            margin-bottom: 12px;
            width: fit-content;
        }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .feature-card .feature-link {
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
            border-color: var(--border-light);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 740px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: background var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item .faq-q i {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            display: none;
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-hero);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 520px;
            margin: 0 auto 32px;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .cta-section .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(0, 180, 255, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 180, 255, 0.35);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 1.5px solid var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(0, 180, 255, 0.1);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-hero);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-col a i {
            width: 20px;
            margin-right: 6px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 60px 0;
            }
            .category-hero {
                padding: 120px 0 60px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-mobile {
                display: flex;
            }
            .bottom-tab {
                display: flex;
            }
            body {
                padding-bottom: 68px;
            }
            .category-hero {
                padding: 100px 0 48px;
            }
            .category-hero .hero-stats {
                gap: 24px;
            }
            .category-hero .hero-stats .stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .card-grid {
                gap: 18px;
            }
            .guide-list-item {
                flex-wrap: wrap;
                padding: 14px 16px;
            }
            .guide-list-item .rank {
                min-width: 28px;
                font-size: 1rem;
            }
            .feature-card {
                padding: 20px 22px;
                min-height: 200px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .btn {
                padding: 12px 26px;
                font-size: 0.95rem;
            }
            .footer {
                padding: 40px 0 20px;
            }
            .footer-bottom-links {
                gap: 12px;
                flex-wrap: wrap;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .game-tags .tag {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
            .card .card-body {
                padding: 16px 18px 20px;
            }
            .rank-grid {
                gap: 14px;
            }
            .rank-card {
                padding: 14px 16px;
                flex-wrap: wrap;
            }
            .faq-item .faq-q {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-item .faq-a {
                padding: 0 18px 14px;
                font-size: 0.9rem;
            }
        }
        @media (min-width: 769px) {
            .nav-mobile {
                display: none !important;
            }
            .menu-toggle {
                display: none !important;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .bottom-tab {
                display: none !important;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeUp 0.6s ease forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }