/* roulang page: index */
/* ============================================
   j9九游集团 - 主题设计系统
   ============================================ */
:root {
  --bg-primary: #0B1026;
  --bg-secondary: #0F1730;
  --bg-footer: #080D24;
  --primary: #00D4FF;
  --primary-dark: #00A8E8;
  --secondary: #7A5CFF;
  --warning: #FFB020;
  --success: #00E08A;
  --text-primary: #EAF0FF;
  --text-secondary: #9AA8C7;
  --text-muted: #5B6A8C;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-bg-2: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.10);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 999px;
  --radius-input: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.30);
  --shadow-glow: 0 4px 24px rgba(0,212,255,0.35);
  --shadow-glow-lg: 0 0 32px rgba(0,212,255,0.50);
  --transition: 0.25s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
  --container-max: 1200px;
  --nav-height: 68px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

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

/* ============================================
   顶部导航
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(11,16,38,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(8,13,36,0.78);
  box-shadow: 0 4px 30px rgba(0,0,0,0.25);
}
.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 0 14px rgba(0,212,255,0.35);
  position: relative;
  overflow: hidden;
}
.logo-icon::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.25);
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2), transparent 60%);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  white-space: nowrap;
  background: linear-gradient(90deg, #FFFFFF, #B8E6FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-menu li a {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  line-height: var(--nav-height);
  display: inline-block;
  position: relative;
}
.nav-menu li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-menu li a:hover,
.nav-menu li a.active {
  color: #FFFFFF;
}
.nav-menu li a:hover::after,
.nav-menu li a.active::after {
  transform: scaleX(1);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  transition: background var(--transition);
}
.hamburger:hover { background: rgba(255,255,255,0.10); }
.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   按钮
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-primary {
  background: linear-gradient(135deg, #00A8E8, #00E0FF);
  color: #0B1026;
  box-shadow: 0 4px 24px rgba(0,212,255,0.35);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(0,212,255,0.5);
  transform: translateY(-1px);
}
.btn-primary:active { transform: scale(0.98); }
.btn-secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(0,212,255,0.5);
  color: #fff;
}
.btn-secondary:active { transform: scale(0.98); }
.btn-lg { padding: 16px 40px; font-size: 16px; }

/* ============================================
   标签徽章
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  font-size: 12px;
  font-weight: 500;
  background: rgba(0,212,255,0.15);
  color: var(--primary);
}
.badge-live {
  background: rgba(0,224,138,0.15);
  color: var(--success);
}
.badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 1.6s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.badge-warning {
  background: rgba(255,176,32,0.15);
  color: var(--warning);
}

/* ============================================
   Hero 首屏
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 40px) 0 60px;
  background: linear-gradient(180deg, rgba(8,13,36,0.92) 0%, rgba(8,13,36,0.55) 50%, rgba(8,13,36,0.85) 100%),
              url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}
.hero-content {
  max-width: 560px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.hero-badge i { color: var(--primary); }
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
  color: #FFFFFF;
}
.hero h1 .highlight {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: #B8C4E0;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* 倒计时面板 */
.countdown-panel {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 32px 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
  position: relative;
  overflow: hidden;
}
.countdown-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), transparent);
}
.countdown-panel::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(122,92,255,0.20), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.live-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.live-status .badge { font-size: 13px; padding: 6px 14px; }
.countdown-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.countdown-date {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
.countdown-num {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 14px 8px;
  box-shadow: 0 0 12px rgba(255,176,32,0.10);
}
.countdown-num .num {
  font-size: 36px;
  font-weight: 700;
  color: var(--warning);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.countdown-num .label {
  font-size: 12px;
  color: #7C8DB0;
  margin-top: 6px;
  letter-spacing: 2px;
}
.countdown-action {
  text-align: center;
}
.countdown-action .btn { width: 100%; }

/* 滚动指示 */
.scroll-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 48px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 10px;
}
.scroll-indicator::after {
  content: '';
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
  animation: scroll-dot 1.8s ease-in-out infinite;
}
@keyframes scroll-dot {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(16px); opacity: 0; }
}

/* ============================================
   通用板块
   ============================================ */
.section {
  padding: 100px 0;
}
.section-alt { background: var(--bg-secondary); }
.section-title-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 24px;
}
.section-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  position: relative;
  padding-left: 20px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}
.section-title-desc {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 420px;
  text-align: right;
}

/* ============================================
   看点列表
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: 512px 1fr;
  gap: 24px;
  align-items: stretch;
}
.feature-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.feature-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  min-height: 220px;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(0,212,255,0.40);
}
.feature-card-large {
  min-height: 464px;
  background: linear-gradient(180deg, rgba(8,13,36,0.20) 0%, rgba(8,13,36,0.85) 100%),
              url('/assets/images/coverpic/cover-1.png') center center / cover no-repeat;
  display: flex;
  align-items: flex-end;
  position: relative;
}
.feature-card-large::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(8,13,36,0.9) 100%);
  pointer-events: none;
}
.feature-card-small {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  min-height: 220px;
  position: relative;
}
.feature-card-small:nth-child(2) {
  background: linear-gradient(135deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
}
.feature-card-small:nth-child(3) {
  background: linear-gradient(135deg, rgba(122,92,255,0.10), rgba(255,255,255,0.02));
}
.feature-num {
  font-size: 42px;
  font-weight: 700;
  color: rgba(255,255,255,0.15);
  position: absolute;
  top: 12px;
  right: 18px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0,212,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
  border: 1px solid rgba(0,212,255,0.20);
}
.feature-card-small:nth-child(3) .feature-icon {
  background: rgba(122,92,255,0.15);
  color: var(--secondary);
  border-color: rgba(122,92,255,0.25);
}
.feature-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.feature-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.feature-card-large .feature-info {
  position: relative;
  z-index: 2;
  padding: 28px 24px;
}
.feature-card-large .feature-info h3 {
  font-size: 22px;
  margin-bottom: 8px;
}
.feature-card-large .feature-info p {
  font-size: 14px;
  color: #B8C4E0;
}
.feature-card-large .feature-icon {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border-color: rgba(255,255,255,0.25);
  margin-bottom: 16px;
}

/* ============================================
   订阅提醒横幅
   ============================================ */
.subscribe-banner {
  border-radius: 20px;
  background: linear-gradient(120deg, rgba(0,212,255,0.08), rgba(122,92,255,0.08));
  border: 1px solid rgba(0,212,255,0.25);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  position: relative;
  overflow: hidden;
}
.subscribe-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.15), transparent 70%);
}
.subscribe-left h3 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.subscribe-left p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 360px;
}
.subscribe-form-wrap {
  flex: 1;
  max-width: 480px;
}
.subscribe-form {
  display: flex;
  gap: 12px;
}
.subscribe-form input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-input);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.subscribe-form input::placeholder { color: var(--text-muted); }
.subscribe-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.15);
}
.subscribe-privacy {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
  display: block;
}

/* ============================================
   回放入口区
   ============================================ */
.replay-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.replay-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.replay-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(0,212,255,0.40);
}
.replay-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: rgba(255,255,255,0.04);
}
.replay-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.replay-card:hover .replay-cover img { transform: scale(1.05); }
.replay-cover .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}
.replay-meta {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.replay-meta h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.replay-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}
.replay-info i { color: var(--text-muted); font-size: 12px; }
.replay-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  transition: gap 0.3s ease;
}
.replay-link:hover { gap: 8px; }

/* 进入直播间入口大卡 */
.replay-entry {
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(122,92,255,0.12));
  border: 1px solid rgba(0,212,255,0.35);
  box-shadow: 0 0 30px rgba(0,212,255,0.12), inset 0 0 60px rgba(0,212,255,0.05);
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px;
  min-height: 320px;
}
.replay-entry:hover {
  border-color: rgba(0,212,255,0.60);
  box-shadow: 0 0 40px rgba(0,212,255,0.20), inset 0 0 60px rgba(0,212,255,0.08);
}
.replay-entry .entry-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #0B1026;
  margin: 0 auto 20px;
  box-shadow: 0 0 24px rgba(0,212,255,0.40);
  animation: entry-pulse 2.2s ease-in-out infinite;
}
@keyframes entry-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,212,255,0.30); }
  50% { box-shadow: 0 0 36px rgba(0,212,255,0.60); }
}
.replay-entry h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.replay-entry p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ============================================
   最新资讯 (CMS)
   ============================================ */
.news-section {
  background: var(--bg-secondary);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  transition: all var(--transition);
}
.news-item:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(0,212,255,0.30);
  transform: translateX(6px);
}
.news-cat {
  flex-shrink: 0;
  min-width: 84px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(0,212,255,0.10);
  border: 1px solid rgba(0,212,255,0.18);
  border-radius: var(--radius-tag);
  padding: 4px 14px;
}
.news-body {
  flex: 1;
  min-width: 0;
}
.news-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.news-item:hover .news-body h3 { color: var(--primary); }
.news-body p {
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-right {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.news-date {
  font-size: 13px;
  color: var(--text-muted);
}
.news-more {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 15px;
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-card);
  border: 1px dashed rgba(255,255,255,0.10);
}

/* ============================================
   FAQ
   ============================================ */
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item.active {
  border-color: rgba(0,212,255,0.40);
  box-shadow: 0 4px 24px rgba(0,0,0,0.20);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  user-select: none;
  gap: 16px;
}
.faq-question .q-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
}
.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-toggle {
  background: rgba(0,212,255,0.15);
  color: var(--primary);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

/* ============================================
   CTA 横幅
   ============================================ */
.cta-banner {
  position: relative;
  background: linear-gradient(135deg, rgba(0,168,232,0.20), rgba(122,92,255,0.15)),
              url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  border-radius: 24px;
  padding: 80px 60px;
  text-align: center;
  overflow: hidden;
  border: 1px solid rgba(0,212,255,0.20);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11,16,38,0.60);
  pointer-events: none;
}
.cta-banner > * {
  position: relative;
  z-index: 2;
}
.cta-banner h2 {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.cta-banner p {
  font-size: 16px;
  color: #B8C4E0;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  width: 28px;
  height: 28px;
  font-size: 14px;
  border-radius: 7px;
}
.footer-logo .logo-text {
  font-size: 18px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col ul a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.footer-contact i {
  color: var(--primary);
  margin-top: 3px;
  font-size: 13px;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a {
  color: var(--text-muted);
}
.footer-bottom a:hover { color: var(--primary); }

/* ============================================
   响应式断点
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner { gap: 32px; }
  .hero h1 { font-size: 38px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-large { min-height: 360px; }
  .replay-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .subscribe-banner { padding: 40px 32px; flex-direction: column; gap: 24px; text-align: center; }
  .subscribe-form-wrap { max-width: 100%; width: 100%; }
  .section-title-wrap { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-title-desc { text-align: left; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(8,13,36,0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px 24px 28px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s ease, opacity 0.25s ease, visibility 0.35s;
    align-items: flex-start;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-menu li {
    width: 100%;
  }
  .nav-menu li a {
    line-height: 52px;
    display: block;
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    width: 100%;
  }
  .nav-menu li a::after { display: none; }
  .nav-menu li a:hover,
  .nav-menu li a.active {
    color: var(--primary);
    background: rgba(0,212,255,0.04);
    border-radius: 8px;
  }
  .hamburger { display: flex; }
  .nav-cta .btn { display: none; }
  .hero {
    min-height: 80vh;
    padding-top: calc(var(--nav-height) + 24px);
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: 32px; }
  .countdown-panel { max-width: 100%; }
  .section { padding: 64px 0; }
  .section-title { font-size: 26px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-large { min-height: 300px; }
  .feature-card-small { min-height: 180px; }
  .subscribe-banner { padding: 32px 20px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .replay-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 12px; padding: 20px; }
  .news-right { align-items: flex-start; flex-direction: row; width: 100%; justify-content: space-between; }
  .news-body h3 { white-space: normal; }
  .news-body p { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .cta-banner { padding: 60px 24px; }
  .cta-banner h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .btn { padding: 10px 20px; font-size: 14px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .countdown-grid { gap: 8px; }
  .countdown-num { padding: 10px 4px; }
  .countdown-num .num { font-size: 28px; }
  .countdown-num .label { font-size: 10px; }
  .section-title { font-size: 24px; }
  .feature-card-small { flex-direction: column; align-items: flex-start; padding: 18px 16px; }
  .replay-grid { gap: 16px; }
  .cta-banner { padding: 48px 16px; }
  .cta-banner h2 { font-size: 24px; }
}

/* roulang page: article */
:root {
    --bg-primary: #0B1026;
    --bg-secondary: #0F1730;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-bg-hover: rgba(255, 255, 255, 0.08);
    --card-border: rgba(255, 255, 255, 0.10);
    --card-border-hover: rgba(0, 212, 255, 0.40);
    --primary: #00D4FF;
    --primary-dark: #00A8E8;
    --secondary: #7A5CFF;
    --warning: #FFB020;
    --success: #00E08A;
    --text-main: #EAF0FF;
    --text-sub: #9AA8C7;
    --text-weak: #5B6A8C;
    --text-blue: #B8C4E0;
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-tag: 999px;
    --radius-input: 8px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.30);
    --shadow-btn: 0 4px 24px rgba(0, 212, 255, 0.35);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
    background: var(--bg-primary);
    color: var(--text-main);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease;
  }

  ul, ol {
    list-style: none;
  }

  img {
    max-width: 100%;
    display: block;
  }

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

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.25s ease;
    line-height: 1.4;
    white-space: nowrap;
  }

  .btn i {
    font-size: 14px;
  }

  .btn-primary {
    background: linear-gradient(135deg, var(--primary-dark), #00E0FF);
    color: var(--bg-primary);
    box-shadow: var(--shadow-btn);
  }

  .btn-primary:hover {
    filter: brightness(1.12);
    box-shadow: 0 0 32px rgba(0, 212, 255, 0.5);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: scale(0.98);
  }

  .btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text-main);
  }

  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.45);
    transform: translateY(-1px);
  }

  .btn-secondary:active {
    transform: scale(0.98);
  }

  .btn-lg {
    padding: 16px 38px;
    font-size: 16px;
  }

  .btn:focus-visible {
    outline: 3px solid rgba(0, 212, 255, 0.35);
    outline-offset: 2px;
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 68px;
    z-index: 1000;
    background: rgba(8, 13, 36, 0.6);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.3s ease, box-shadow 0.3s ease;
  }

  .site-header.scrolled {
    background: rgba(8, 13, 36, 0.82);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  }

  .header-inner {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: 15px;
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.3);
  }

  .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    margin: 0 auto;
  }

  .nav-menu li a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-sub);
    padding: 0 2px 8px;
    position: relative;
  }

  .nav-menu li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    border-radius: 2px;
    opacity: 0;
    transform: scaleX(0.4);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .nav-menu li a:hover {
    color: #FFFFFF;
  }

  .nav-menu li a.active {
    color: #FFFFFF;
  }

  .nav-menu li a.active::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .nav-cta .btn {
    padding: 9px 20px;
    font-size: 14px;
  }

  .hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
  }

  .hamburger span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .page-banner {
    margin-top: 68px;
    padding: 56px 0 44px;
    background: linear-gradient(180deg, rgba(8, 13, 36, 0.88), rgba(11, 16, 38, 0.55)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
  }

  .page-banner-inner {
    max-width: 860px;
    margin: 0 auto;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 18px;
    flex-wrap: wrap;
  }

  .breadcrumb a {
    color: var(--text-sub);
  }

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

  .breadcrumb i {
    font-size: 10px;
    color: var(--text-weak);
  }

  .breadcrumb .current {
    color: var(--text-sub);
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .page-banner h1 {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-main);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
  }

  .article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
    color: var(--text-sub);
    flex-wrap: wrap;
  }

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

  .article-meta i {
    color: var(--primary);
  }

  .article-category {
    background: rgba(0, 212, 255, 0.12);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: var(--radius-tag);
    font-size: 12px;
    font-weight: 500;
  }

  .article-body {
    padding: 56px 0 64px;
    background: var(--bg-primary);
  }

  .article-container {
    max-width: 800px;
    margin: 0 auto;
  }

  .article-rich-content {
    font-size: 16px;
    line-height: 1.8;
    color: #D5DEED;
  }

  .article-rich-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-main);
    margin: 40px 0 16px;
    padding-left: 14px;
    border-left: 3px solid var(--primary);
    line-height: 1.4;
  }

  .article-rich-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
    margin: 32px 0 14px;
    line-height: 1.4;
  }

  .article-rich-content p {
    margin-bottom: 24px;
  }

  .article-rich-content a {
    color: var(--primary);
    border-bottom: 1px solid rgba(0, 212, 255, 0.3);
    transition: border-color 0.25s ease;
  }

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

  .article-rich-content blockquote {
    margin: 28px 0;
    padding: 18px 22px;
    background: rgba(0, 212, 255, 0.06);
    border-left: 3px solid var(--primary);
    border-radius: 0 12px 12px 0;
    color: var(--text-blue);
    font-size: 15px;
  }

  .article-rich-content ul,
  .article-rich-content ol {
    margin: 16px 0 24px;
    padding-left: 24px;
    color: #D5DEED;
  }

  .article-rich-content li {
    margin-bottom: 10px;
    position: relative;
  }

  .article-rich-content ul li::before {
    content: '';
    position: absolute;
    left: -18px;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: rotate(45deg);
  }

  .article-rich-content ol {
    list-style: decimal;
  }

  .article-rich-content ol li::before {
    display: none;
  }

  .article-rich-content img {
    border-radius: var(--radius-card);
    margin: 24px 0;
    box-shadow: var(--shadow-card);
  }

  .article-rich-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
  }

  .article-rich-content th,
  .article-rich-content td {
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 14px;
    text-align: left;
  }

  .article-rich-content th {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-main);
    font-weight: 600;
  }

  .article-not-found {
    text-align: center;
    padding: 80px 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-card);
  }

  .article-not-found i {
    font-size: 44px;
    color: var(--text-weak);
    margin-bottom: 16px;
  }

  .article-not-found p {
    font-size: 18px;
    color: var(--text-sub);
    margin-bottom: 24px;
  }

  .article-prev-next {
    max-width: 800px;
    margin: 0 auto;
    padding: 28px 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .prev-next-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 20px 22px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-card);
    transition: all 0.25s ease;
  }

  .prev-next-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(0, 212, 255, 0.35);
    transform: translateY(-3px);
  }

  .prev-next-card.next {
    align-items: flex-end;
    text-align: right;
  }

  .pn-label {
    font-size: 12px;
    color: var(--text-weak);
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.5px;
  }

  .prev-next-card.next .pn-label {
    flex-direction: row-reverse;
  }

  .pn-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
  }

  .related-section {
    padding: 64px 0 80px;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }

  .related-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 16px;
    flex-wrap: wrap;
  }

  .related-header h2 {
    font-size: 26px;
    font-weight: 600;
    color: var(--text-main);
    position: relative;
    padding-left: 16px;
  }

  .related-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    height: 22px;
    width: 4px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
  }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .related-card {
    display: block;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: all 0.25s ease;
  }

  .related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.40);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-card);
  }

  .related-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background: rgba(255, 255, 255, 0.04);
  }

  .related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .related-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 16, 38, 0), rgba(11, 16, 38, 0.5));
    pointer-events: none;
  }

  .thumb-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: rgba(11, 16, 38, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-main);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: var(--radius-tag);
    border: 1px solid rgba(255, 255, 255, 0.15);
  }

  .related-info {
    padding: 18px 20px 20px;
  }

  .related-info h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
    line-height: 1.4;
  }

  .related-info p {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .cta-section {
    padding: 72px 24px;
    position: relative;
  }

  .cta-inner {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 168, 232, 0.20), rgba(122, 92, 255, 0.12)), rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(0, 212, 255, 0.20);
    border-radius: 24px;
    padding: 56px 32px;
    position: relative;
    overflow: hidden;
  }

  .cta-inner::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
    pointer-events: none;
  }

  .cta-inner h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
  }

  .cta-inner p {
    font-size: 15px;
    color: var(--text-sub);
    margin-bottom: 28px;
  }

  .site-footer {
    background: #080D24;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 56px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .footer-logo .logo-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
  }

  .footer-logo .logo-text {
    font-size: 18px;
  }

  .footer-desc {
    font-size: 13px;
    color: var(--text-weak);
    line-height: 1.7;
    max-width: 320px;
  }

  .footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 18px;
    letter-spacing: 0.5px;
  }

  .footer-col ul li {
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--text-weak);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.6;
  }

  .footer-col ul li i {
    color: var(--text-weak);
    font-size: 12px;
    margin-top: 3px;
    width: 14px;
  }

  .footer-col ul li a {
    color: var(--text-weak);
    transition: color 0.25s ease;
  }

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

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: rgba(91, 106, 140, 0.7);
  }

  @media (max-width: 1024px) {
    .nav-menu {
      gap: 18px;
    }

    .header-inner {
      padding: 0 16px;
    }

    .container {
      padding: 0 20px;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .related-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 768px) {
    .hamburger {
      display: flex;
    }

    .nav-menu {
      position: fixed;
      top: 68px;
      left: 0;
      width: 100%;
      height: auto;
      background: rgba(8, 13, 36, 0.96);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      flex-direction: column;
      align-items: flex-start;
      padding: 20px 24px 28px;
      gap: 6px;
      margin: 0;
      transform: translateY(-16px);
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 999;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }

    .nav-menu.open {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }

    .nav-menu li {
      width: 100%;
    }

    .nav-menu li a {
      display: block;
      padding: 12px 4px;
      font-size: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-menu li a::after {
      display: none;
    }

    .nav-menu li a.active {
      color: var(--primary);
    }

    .nav-cta .btn {
      display: none;
    }

    .page-banner {
      padding: 40px 0 32px;
    }

    .page-banner h1 {
      font-size: 30px;
    }

    .article-body {
      padding: 40px 0 48px;
    }

    .article-prev-next {
      grid-template-columns: 1fr;
    }

    .related-grid {
      grid-template-columns: 1fr;
    }

    .cta-inner {
      padding: 40px 20px;
    }

    .cta-inner h2 {
      font-size: 24px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .footer-bottom {
      flex-direction: column;
      text-align: center;
      padding: 20px 0 28px;
    }
  }

  @media (max-width: 480px) {
    .page-banner h1 {
      font-size: 26px;
    }

    .article-meta {
      gap: 12px;
    }

    .article-rich-content {
      font-size: 15px;
    }

    .article-rich-content h2 {
      font-size: 21px;
    }

    .related-header h2 {
      font-size: 22px;
    }

    .cta-inner h2 {
      font-size: 21px;
    }

    .cta-inner p {
      font-size: 14px;
    }

    .btn-lg {
      width: 100%;
      padding: 14px 24px;
    }
  }

/* roulang page: category1 */
:root {
  --bg-primary: #0B1026;
  --bg-secondary: #0F1730;
  --accent-blue: #00D4FF;
  --accent-purple: #7A5CFF;
  --accent-amber: #FFB020;
  --accent-green: #00E08A;
  --text-primary: #EAF0FF;
  --text-secondary: #9AA8C7;
  --text-muted: #5B6A8C;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.10);
  --border-blue: rgba(0,212,255,0.40);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 999px;
  --radius-input: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.30);
  --shadow-glow: 0 4px 24px rgba(0,212,255,0.35);
  --transition: 0.25s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
ul, ol {
  list-style: none;
}
button, input {
  font-family: inherit;
  outline: none;
  border: none;
  background: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #00A8E8, #00E0FF);
  color: #0B1026;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(0,212,255,0.5);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.45);
  transform: translateY(-1px);
}

/* ===== Tags / Badge ===== */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-tag);
  background: rgba(0,212,255,0.15);
  color: var(--accent-blue);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  background: rgba(0,212,255,0.15);
  color: var(--accent-blue);
  font-size: 12px;
  font-weight: 500;
}
.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.25);
  color: var(--accent-blue);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  z-index: 1000;
  background: rgba(8,13,36,0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(8,13,36,0.92);
  box-shadow: 0 4px 30px rgba(0,0,0,0.35);
}
.header-inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(0,212,255,0.25), rgba(122,92,255,0.25));
  color: var(--accent-blue);
  font-size: 15px;
  box-shadow: 0 0 16px rgba(0,212,255,0.15);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 2px;
  transition: color var(--transition);
}
.nav-menu a i {
  font-size: 13px;
  opacity: 0.7;
}
.nav-menu a:hover {
  color: #FFFFFF;
}
.nav-menu a.active {
  color: #FFFFFF;
}
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(0,212,255,0.5);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-cta .btn {
  padding: 9px 18px;
  font-size: 14px;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Category Banner ===== */
.category-banner {
  position: relative;
  padding: 140px 0 64px;
  overflow: hidden;
  margin-top: 68px;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,13,36,0.92) 0%, rgba(8,13,36,0.70) 55%, rgba(8,13,36,0.92) 100%);
  z-index: 1;
}
.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent-blue);
}
.breadcrumb-sep {
  opacity: 0.5;
}
.banner-content h1 {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.2;
  margin: 18px 0 12px;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #FFFFFF 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.banner-subtitle {
  font-size: 17px;
  color: #B8C4E0;
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.banner-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.banner-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  padding: 6px 16px;
  border-radius: var(--radius-tag);
}
.banner-meta i {
  color: var(--accent-blue);
  font-size: 14px;
}

/* ===== Category Intro ===== */
.category-intro {
  padding: 90px 0 80px;
}
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.intro-image {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 4/3;
  background: rgba(255,255,255,0.04);
}
.intro-image::before {
  content: "\f03e";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 40px;
  color: rgba(255,255,255,0.10);
  z-index: 0;
}
.intro-image img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.intro-image:hover img {
  transform: scale(1.03);
}
.intro-content {
  padding-left: 8px;
}
.intro-content .section-tag {
  margin-bottom: 16px;
}
.intro-content h2 {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 20px;
}
.intro-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}
.intro-stats {
  display: flex;
  gap: 40px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.stat-item {
  text-align: left;
}
.stat-item strong {
  font-size: 30px;
  font-weight: 700;
  color: var(--accent-blue);
  display: block;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-item span {
  font-size: 13px;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

/* ===== Content Cards ===== */
.category-content {
  padding: 70px 0 90px;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(15,23,48,0.5) 50%, var(--bg-primary) 100%);
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head .section-tag {
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.3;
  margin: 12px 0 10px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-secondary);
}
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}
.content-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}
.content-card:nth-child(even) {
  margin-top: 48px;
}
.content-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-blue);
  box-shadow: 0 12px 44px rgba(0,0,0,0.42), 0 0 20px rgba(0,212,255,0.08);
}
.card-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
}
.card-img::before {
  content: "\f03e";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 32px;
  color: rgba(255,255,255,0.10);
  z-index: 0;
}
.card-img img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.content-card:hover .card-img img {
  transform: scale(1.04);
}
.card-status {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  background: rgba(8,13,36,0.72);
  backdrop-filter: blur(6px);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.12);
}
.card-status i {
  font-size: 8px;
  color: var(--accent-green);
}
.card-body {
  padding: 22px;
}
.card-body h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 12px 0 8px;
  line-height: 1.4;
}
.card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 14px;
}
.card-meta span {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-meta span i {
  color: var(--accent-blue);
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-blue);
  transition: all var(--transition);
}
.card-link:hover {
  gap: 10px;
  color: #FFFFFF;
}

/* ===== Subscribe CTA ===== */
.category-cta {
  padding: 80px 0;
}
.subscribe-panel {
  position: relative;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 20px;
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.subscribe-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-blue));
  background-size: 200% 100%;
  animation: shimmer 3s ease infinite;
}
@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.subscribe-text h2 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 8px;
}
.subscribe-text p {
  font-size: 15px;
  color: var(--text-secondary);
}
.subscribe-form {
  display: flex;
  gap: 12px;
  min-width: 420px;
  flex-shrink: 0;
}
.subscribe-form input {
  flex: 1;
  padding: 13px 16px;
  border-radius: var(--radius-input);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-primary);
  font-size: 14px;
  transition: all var(--transition);
}
.subscribe-form input::placeholder {
  color: var(--text-muted);
}
.subscribe-form input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.15);
  background: rgba(0,212,255,0.04);
}
.subscribe-privacy {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.subscribe-privacy i {
  color: var(--accent-blue);
  font-size: 12px;
}

/* ===== FAQ ===== */
.category-faq {
  padding: 70px 0 100px;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item.active {
  border-color: var(--border-blue);
  box-shadow: 0 0 24px rgba(0,212,255,0.08);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition);
  user-select: none;
}
.faq-question:hover {
  color: var(--accent-blue);
}
.faq-icon {
  font-size: 20px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--accent-blue);
}
.faq-answer {
  max-height: 0;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 260px;
  padding: 0 24px 20px;
}

/* ===== Footer ===== */
.site-footer {
  background: #080D24;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr 1.2fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo .logo-text {
  font-size: 18px;
}
.footer-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  border-radius: 2px;
}
.footer-col ul li {
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-col a {
  color: var(--text-muted);
  transition: color 0.25s ease;
}
.footer-col a:hover {
  color: var(--accent-blue);
}
.footer-contact i {
  color: var(--accent-blue);
  width: 18px;
  text-align: center;
  font-size: 13px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .content-grid {
    gap: 24px;
  }
  .subscribe-panel {
    flex-direction: column;
    padding: 40px 32px;
    text-align: center;
  }
  .subscribe-form {
    min-width: 100%;
  }
  .intro-grid {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 62px;
  }
  .header-inner {
    padding: 0 20px;
  }
  .hamburger {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 62px;
    right: 0;
    width: 100%;
    height: calc(100vh - 62px);
    background: rgba(8,13,36,0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 50px;
    gap: 30px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 999;
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  .nav-menu.open {
    transform: translateX(0);
  }
  .nav-menu a {
    font-size: 17px;
    padding: 10px 0;
  }
  .nav-cta .btn {
    display: none;
  }
  .category-banner {
    padding: 110px 0 48px;
  }
  .banner-content h1 {
    font-size: 34px;
  }
  .banner-subtitle {
    font-size: 15px;
  }
  .banner-meta {
    gap: 10px;
  }
  .banner-meta span {
    font-size: 12px;
    padding: 5px 12px;
  }
  .category-intro {
    padding: 60px 0 56px;
  }
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .intro-image {
    aspect-ratio: 16/10;
  }
  .intro-content h2 {
    font-size: 26px;
  }
  .intro-stats {
    gap: 28px;
  }
  .category-content {
    padding: 50px 0 60px;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .content-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .content-card:nth-child(even) {
    margin-top: 0;
  }
  .category-cta {
    padding: 56px 0;
  }
  .subscribe-panel {
    padding: 32px 24px;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form .btn {
    width: 100%;
  }
  .category-faq {
    padding: 50px 0 70px;
  }
  .faq-question {
    font-size: 15px;
    padding: 18px 18px;
  }
  .faq-answer {
    padding: 0 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .banner-content h1 {
    font-size: 28px;
  }
  .banner-subtitle {
    font-size: 14px;
    max-width: 320px;
  }
  .banner-meta {
    flex-direction: column;
    align-items: center;
  }
  .intro-stats {
    justify-content: space-between;
    gap: 16px;
  }
  .stat-item strong {
    font-size: 24px;
  }
  .stat-item span {
    font-size: 12px;
  }
  .section-head p {
    font-size: 14px;
  }
  .content-card .card-body {
    padding: 18px;
  }
  .subscribe-text h2 {
    font-size: 24px;
  }
  .subscribe-text p {
    font-size: 14px;
  }
  .subscribe-form input {
    font-size: 14px;
  }
  .btn {
    padding: 12px 22px;
  }
  .footer-grid {
    gap: 24px;
  }
  .footer-col h4 {
    font-size: 14px;
  }
}