/* roulang page: index */
:root {
  --color-primary: #1266F1;
  --color-primary-light: #00C2FF;
  --color-primary-dark: #0A3D91;
  --color-accent: #F5A623;
  --color-bg: #070D1A;
  --color-bg-secondary: #0D1628;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --color-text: #E8EEF7;
  --color-text-secondary: #9BB0C9;
  --color-text-muted: #5C7191;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  --shadow-hover: 0 12px 48px rgba(18, 102, 241, 0.2);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "SF Pro Display", "Roboto", sans-serif;
  --spacing-section: 100px;
  --spacing-mobile: 48px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--color-primary-light); text-decoration: none; transition: all 0.2s ease; }
a:hover { color: #fff; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-cn); cursor: pointer; }
::selection { background: rgba(18, 102, 241, 0.4); color: #fff; }
:focus-visible { outline: 2px solid var(--color-primary-light); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Header Top ===== */
.site-header {
  background: rgba(7, 13, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  position: relative;
  z-index: 1000;
}
.header-top {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(18, 102, 241, 0.4);
}
.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.brand-text .highlight { color: var(--color-primary-light); }
.brand-text small {
  display: block;
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 1px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 0 16px;
  height: 38px;
  width: 240px;
  gap: 8px;
  transition: border-color 0.2s;
}
.search-box:focus-within {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 12px rgba(0, 194, 255, 0.2);
}
.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 13px;
  flex: 1;
  font-family: var(--font-cn);
}
.search-box input::placeholder { color: var(--color-text-muted); }
.search-box i { color: var(--color-text-muted); font-size: 13px; }
.btn-login {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  border-radius: var(--radius-btn);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
  height: 38px;
}
.btn-login:hover {
  background: var(--glass-bg);
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}
.btn-follow {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  border: none;
  color: #fff;
  border-radius: var(--radius-btn);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 0 16px rgba(18, 102, 241, 0.4);
  transition: all 0.2s;
  height: 38px;
}
.btn-follow:hover {
  box-shadow: 0 0 24px rgba(0, 194, 255, 0.5);
  transform: translateY(-1px);
}
.menu-toggle {
  display: none;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 14px;
  align-items: center;
  justify-content: center;
}

/* ===== Channel Nav ===== */
.channel-nav {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(7, 13, 26, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}
.channel-nav.scrolled {
  background: rgba(7, 13, 26, 0.92);
  border-bottom: 1px solid var(--glass-border);
}
.channel-nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
  height: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.channel-nav-inner::-webkit-scrollbar { display: none; }
.channel-link {
  padding: 6px 20px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  border: 1px solid transparent;
  transition: all 0.2s;
  background: transparent;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.channel-link:hover {
  color: #fff;
  background: var(--glass-bg);
}
.channel-link.active {
  background: rgba(18, 102, 241, 0.2);
  border-color: rgba(0, 194, 255, 0.3);
  color: var(--color-primary-light);
  box-shadow: 0 0 12px rgba(18, 102, 241, 0.2);
  font-weight: 500;
}

/* ===== Mobile drawer ===== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 13, 26, 0.98);
  backdrop-filter: blur(30px);
  z-index: 2000;
  padding: 80px 32px 32px;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer.open { display: flex; animation: fadeIn 0.2s ease; }
.mobile-drawer a {
  font-size: 22px;
  color: var(--color-text);
  padding: 14px 0;
  border-bottom: 1px solid var(--glass-border);
  font-weight: 500;
}
.mobile-drawer a.active { color: var(--color-primary-light); }
.drawer-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: calc(100vh - 120px);
  max-height: 900px;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: var(--color-bg);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 13, 26, 0.92) 0%, rgba(7, 13, 26, 0.6) 50%, rgba(7, 13, 26, 0.3) 100%);
}
.hero-bottom-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-bg), transparent);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  width: 100%;
}
.hero-left {
  padding-right: 40px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(18, 102, 241, 0.2);
  border: 1px solid rgba(0, 194, 255, 0.3);
  border-radius: 999px;
  padding: 4px 16px;
  font-size: 12px;
  color: var(--color-primary-light);
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero-title {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.hero-title .gradient {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 440px;
  line-height: 1.6;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.btn-primary-lg {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  border: none;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  box-shadow: 0 0 24px rgba(18, 102, 241, 0.5), 0 4px 16px rgba(0, 194, 255, 0.2);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
}
.btn-primary-lg:hover {
  box-shadow: 0 0 32px rgba(18, 102, 241, 0.7), 0 6px 20px rgba(0, 194, 255, 0.3);
  transform: translateY(-2px);
  color: #fff;
}
.btn-primary-lg:active {
  transform: translateY(1px);
  box-shadow: 0 0 16px rgba(18, 102, 241, 0.4);
}
.btn-ghost-lg {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text);
  font-size: 16px;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  backdrop-filter: blur(10px);
}
.btn-ghost-lg:hover {
  background: var(--glass-bg);
  border-color: rgba(0, 194, 255, 0.5);
  color: #fff;
}
.hero-visual {
  position: relative;
}
.phone-mockup {
  position: relative;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  padding: 16px;
  box-shadow: 0 0 60px rgba(18, 102, 241, 0.2);
}
.phone-mockup::before {
  content: '';
  display: block;
  padding-bottom: 177%;
}
.phone-mockup .phone-screen {
  position: absolute;
  inset: 16px;
  border-radius: 20px;
  overflow: hidden;
  background: var(--color-bg-secondary);
}
.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.phone-screen .overlay-lines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0px, rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 60px);
  pointer-events: none;
}
.phone-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background: rgba(18, 102, 241, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(18, 102, 241, 0.6);
  animation: pulsePlay 2s ease-in-out infinite;
}
@keyframes pulsePlay {
  0%, 100% { box-shadow: 0 0 20px rgba(18, 102, 241, 0.4); transform: translate(-50%, -50%) scale(1); }
  50% { box-shadow: 0 0 40px rgba(18, 102, 241, 0.7); transform: translate(-50%, -50%) scale(1.05); }
}
.hero-side-info {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 3;
}
.hero-side-info .live-badge {
  background: rgba(255, 62, 62, 0.2);
  border: 1px solid rgba(255, 62, 62, 0.4);
  color: #ff5e5e;
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero-side-info .live-badge span {
  width: 6px;
  height: 6px;
  background: #ff5e5e;
  border-radius: 50%;
  animation: blink 1s infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hero-side-info .match-score {
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.5);
  padding: 4px 12px;
  border-radius: 8px;
}
.hero-play-icon {
  position: absolute;
  bottom: 32px;
  left: 24px;
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  font-size: 16px;
  animation: bounce 2s ease-in-out infinite;
  z-index: 3;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ===== Section general ===== */
.section {
  padding: 80px 0;
  position: relative;
}
.section-light { background: var(--color-bg); }
.section-dark { background: var(--color-bg-secondary); }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}
.section-title .highlight {
  color: var(--color-primary-light);
}
.section-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}
.section-link {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.section-link:hover {
  color: var(--color-primary-light);
}
.section-divider {
  width: 100%;
  height: 1px;
  background: var(--glass-border);
  border: none;
  margin: 80px 0;
}

/* ===== Video Cards ===== */
.video-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.video-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-card);
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
  position: relative;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-bg-secondary);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s ease;
}
.video-card:hover .video-thumb img {
  transform: scale(1.05);
}
.video-thumb .duration {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 12px;
  font-family: var(--font-num);
  padding: 2px 8px;
  border-radius: 6px;
  z-index: 2;
}
.video-thumb .play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 44px;
  height: 44px;
  background: rgba(18, 102, 241, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  opacity: 0;
  transition: all 0.2s ease;
  z-index: 2;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 20px rgba(18, 102, 241, 0.5);
}
.video-card:hover .play-overlay {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.video-body {
  padding: 16px;
}
.video-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 46px;
  margin-bottom: 10px;
}
.video-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-text-muted);
}
.video-views i { font-size: 11px; margin-right: 4px; }
.video-tag {
  background: rgba(18, 102, 241, 0.2);
  color: var(--color-primary-light);
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 999px;
}

/* ===== Horizontal scroll ===== */
.h-scroll-wrap {
  position: relative;
}
.h-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(18, 102, 241, 0.6) rgba(255, 255, 255, 0.06);
}
.h-scroll::-webkit-scrollbar { height: 4px; }
.h-scroll::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.06); border-radius: 2px; }
.h-scroll::-webkit-scrollbar-thumb {
  background: rgba(18, 102, 241, 0.6);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
}
.h-scroll .video-card {
  flex: 0 0 280px;
}

/* ===== Purchase list ===== */
.purchase-list {
  list-style: none;
  margin: 0;
}
.purchase-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 12px;
  border-radius: 12px;
  transition: background 0.2s;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.purchase-item:hover {
  background: var(--glass-bg);
}
.purchase-item img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 12px;
  flex-shrink: 0;
}
.purchase-item.alt {
  flex-direction: row-reverse;
}
.purchase-info {
  flex: 1;
  min-width: 0;
}
.purchase-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.purchase-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 8px;
}
.purchase-tags {
  display: flex;
  gap: 8px;
}
.tag-item {
  font-size: 11px;
  padding: 2px 10px;
  border-radius: var(--radius-tag);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.tag-hot { background: rgba(245, 166, 35, 0.2); color: var(--color-accent); }
.tag-recommend { background: rgba(0, 194, 255, 0.15); color: var(--color-primary-light); }
.tag-new { background: rgba(255, 62, 62, 0.15); color: #ff5e5e; }
.btn-buy {
  background: transparent;
  border: 1px solid rgba(0, 194, 255, 0.4);
  color: var(--color-primary-light);
  font-size: 12px;
  padding: 6px 16px;
  border-radius: 999px;
  transition: all 0.2s;
  white-space: nowrap;
  height: 32px;
}
.btn-buy:hover {
  background: rgba(18, 102, 241, 0.2);
  border-color: var(--color-primary-light);
  box-shadow: 0 0 12px rgba(18, 102, 241, 0.3);
}
.btn-buy.outline {
  background: transparent;
}

/* ===== Reviews ===== */
.review-strip {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(18, 102, 241, 0.6) rgba(255, 255, 255, 0.06);
}
.review-strip::-webkit-scrollbar { height: 4px; }
.review-strip::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.06); border-radius: 2px; }
.review-strip::-webkit-scrollbar-thumb {
  background: rgba(18, 102, 241, 0.6);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
}
.review-card {
  flex: 0 0 280px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 20px;
  transition: all 0.2s;
}
.review-card:hover {
  border-color: rgba(0, 194, 255, 0.3);
  box-shadow: 0 0 24px rgba(18, 102, 241, 0.2);
}
.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.review-card:hover .review-avatar { transform: rotate(5deg); }
.avatar-1 { background: linear-gradient(135deg, #1266F1, #00C2FF); }
.avatar-2 { background: linear-gradient(135deg, #F5A623, #ff7e5f); }
.avatar-3 { background: linear-gradient(135deg, #7b2ff7, #c471f5); }
.avatar-4 { background: linear-gradient(135deg, #11998e, #38ef7d); }
.avatar-5 { background: linear-gradient(135deg, #fc466b, #3f5efb); }
.review-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.review-stars {
  color: var(--color-accent);
  font-size: 13px;
  letter-spacing: 1px;
}
.review-badge {
  font-size: 10px;
  color: #38ef7d;
  background: rgba(56, 239, 125, 0.1);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 4px;
}
.review-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.review-source {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 10px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  text-align: center;
  overflow: hidden;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 13, 26, 0.85);
  z-index: 1;
}
.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 500px;
  height: 500px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 194, 255, 0.15), transparent 70%);
  z-index: 2;
}
.cta-content {
  position: relative;
  z-index: 3;
}
.cta-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}
.cta-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}
.cta-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 16px 40px;
  border-radius: 14px;
  border: none;
  height: 56px;
  width: 220px;
  justify-content: center;
  box-shadow: 0 0 25px rgba(18, 102, 241, 0.6);
  transition: all 0.2s;
  animation: ctaPulse 2s ease-in-out infinite;
}
@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(18, 102, 241, 0.4), 0 0 40px rgba(18, 102, 241, 0.2); }
  50% { box-shadow: 0 0 30px rgba(18, 102, 241, 0.7), 0 0 60px rgba(18, 102, 241, 0.3); }
}
.cta-btn:hover {
  color: #fff;
  transform: translateY(-2px);
}
.cta-trust {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}
.trust-item i {
  color: var(--color-primary-light);
  font-size: 16px;
}

/* ===== CMS News Section ===== */
.news-grid {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 24px;
}
.featured-news {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.2s;
}
.featured-news:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.featured-news .news-image {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.featured-news .news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}
.featured-news:hover .news-image img { transform: scale(1.05); }
.featured-news .news-image .cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(18, 102, 241, 0.85);
  color: #fff;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 999px;
}
.news-body { padding: 20px; }
.featured-news .news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.featured-news .news-excerpt {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.news-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.news-meta i { font-size: 11px; margin-right: 4px; }
.news-list-right {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-list-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.2s;
  flex-wrap: wrap;
}
.news-list-row:hover { background: var(--glass-bg); }
.news-list-row .row-tag {
  font-size: 11px;
  background: rgba(18, 102, 241, 0.15);
  color: var(--color-primary-light);
  padding: 2px 10px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-list-row .row-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
}
.news-list-row .row-title:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.news-list-row .row-time {
  font-size: 12px;
  color: var(--color-text-muted);
  font-family: var(--font-num);
  flex-shrink: 0;
}
.news-list-row .row-link {
  font-size: 12px;
  color: var(--color-primary-light);
  flex-shrink: 0;
}

/* ===== CMS empty state ===== */
.cms-empty {
  border: 2px dashed var(--glass-border);
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.02);
  width: 100%;
}
.cms-empty i {
  font-size: 36px;
  margin-bottom: 12px;
  color: var(--color-text-muted);
  opacity: 0.5;
}
.cms-empty p {
  font-size: 14px;
}

/* ===== FAQ ===== */
.faq-section .section-header { margin-bottom: 32px; }
.faq-grid {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 40px;
}
.faq-intro {
  padding-right: 32px;
}
.faq-intro .section-title { font-size: 32px; margin-bottom: 12px; }
.faq-intro p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
}
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-bottom: 1px solid var(--glass-border);
  padding: 6px 0;
}
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s;
  position: relative;
  padding-right: 30px;
}
.faq-item summary::-webkit-details-marker,
.faq-item summary::marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--color-primary-light);
  transition: transform 0.3s;
  position: absolute;
  right: 0;
  font-weight: 400;
}
.faq-item[open] summary::after {
  content: '×';
  transform: rotate(90deg);
}
.faq-item summary:hover { color: var(--color-primary-light); }
.faq-answer {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding: 0 0 20px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 2fr 3fr 3fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 12px; }
.footer-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-top: 12px;
  max-width: 260px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all 0.2s;
}
.footer-links a:hover {
  color: var(--color-primary-light);
  padding-left: 4px;
}
.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-contact li {
  font-size: 13px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i {
  color: var(--color-primary-light);
  width: 16px;
  font-size: 14px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.social-icon {
  width: 36px;
  height: 36px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 14px;
  transition: all 0.2s;
}
.social-icon:hover {
  background: rgba(18, 102, 241, 0.2);
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  box-shadow: 0 0 12px rgba(18, 102, 241, 0.3);
}
.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom span {
  font-size: 12px;
  color: var(--color-text-muted);
}
.footer-bottom .icp {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .hero-title { font-size: 38px; }
  .search-box { width: 180px; }
  .hero-left { padding-right: 20px; }
  .video-card-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 2fr 2fr; }
  .news-grid { grid-template-columns: 1fr; }
}

@media screen and (max-width: 767px) {
  :root { --spacing-section: 48px; }
  .section { padding: 48px 0; }
  .section-divider { margin: 48px 0; }
  .header-top { padding: 0 16px; height: 60px; }
  .search-box, .btn-login, .btn-follow { display: none; }
  .menu-toggle { display: flex; }
  .channel-nav-inner { padding: 0 16px; }
  .hero { min-height: auto; padding: 60px 0; }
  .hero .container { flex-direction: column; padding-top: 40px; padding-bottom: 40px; }
  .hero-left { padding-right: 0; text-align: center; margin-bottom: 32px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-visual { max-width: 280px; margin: 0 auto; }
  .hero-bottom-glow { height: 60px; }
  .video-card-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .h-scroll .video-card { flex: 0 0 240px; }
  .purchase-item { padding: 12px 8px; }
  .purchase-item img { width: 80px; height: 80px; }
  .purchase-title { font-size: 14px; }
  .purchase-desc { font-size: 12px; }
  .review-card { flex: 0 0 220px; }
  .cta-section { padding: 60px 0; }
  .cta-title { font-size: 24px; }
  .trust-item { gap: 6px; font-size: 12px; }
  .news-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 24px; }
  .faq-intro { padding-right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-title { font-size: 22px; }
}

@media screen and (max-width: 480px) {
  .video-card-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 26px; }
  .btn-primary-lg, .btn-ghost-lg { width: 100%; justify-content: center; padding: 14px 20px; }
  .h-scroll .video-card { flex: 0 0 200px; }
}

/* roulang page: article */
:root {
  --color-primary: #1266F1;
  --color-primary-light: #00C2FF;
  --color-primary-dark: #0A3D91;
  --color-accent: #F5A623;
  --color-bg: #070D1A;
  --color-bg-secondary: #0D1628;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --color-text: #E8EEF7;
  --color-text-secondary: #9BB0C9;
  --color-text-muted: #5C7191;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.02) inset;
  --shadow-glow: 0 0 24px rgba(18,102,241,0.5), 0 4px 16px rgba(0,194,255,0.2);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "SF Pro Display", "Roboto", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-cn);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.spacer { height: 40px; }
.bg-noise {
  position: relative;
}
.bg-noise::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(/%23n)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
  outline: none;
}
.btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}
.btn-glow {
  background: linear-gradient(135deg, #00C2FF, #1266F1);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-glow:hover {
  box-shadow: 0 0 32px rgba(18,102,241,0.7), 0 6px 20px rgba(0,194,255,0.3);
  transform: translateY(-1px);
  color: #fff;
}
.btn-glow:active {
  transform: translateY(1px);
  box-shadow: 0 0 12px rgba(18,102,241,0.4);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  background: var(--glass-bg);
  border-color: rgba(0, 194, 255, 0.5);
  color: var(--color-primary-light);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-btn);
  min-height: 44px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s;
  cursor: pointer;
}
.btn-outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: var(--glass-bg);
}
.btn-outline-light {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s;
  cursor: pointer;
  font-size: 15px;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.14);
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

/* ===== Tags / Badges ===== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-tag);
  font-size: 12px;
  background: rgba(18, 102, 241, 0.18);
  color: var(--color-primary-light);
  border: 1px solid rgba(18, 102, 241, 0.25);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  color: #fff;
}

/* ===== Site Header ===== */
.site-header {
  background: rgba(7, 13, 26, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  z-index: 100;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  background: linear-gradient(135deg, #00C2FF, #1266F1);
  box-shadow: 0 0 16px rgba(0, 194, 255, 0.3);
  flex-shrink: 0;
}
.brand-text {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  white-space: nowrap;
}
.brand-text small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 1.5px;
  color: var(--color-text-muted);
  font-family: var(--font-en);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 0 8px 0 14px;
  height: 38px;
  width: 220px;
  transition: border-color 0.25s;
}
.search-box:focus-within {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.08);
}
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 13px;
}
.search-box input::placeholder { color: var(--color-text-muted); }
.search-box button {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.2s;
}
.search-box button:hover { color: var(--color-primary-light); }

/* ===== Channel Nav ===== */
.channel-nav {
  background: rgba(7, 13, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: sticky;
  top: 0;
  z-index: 999;
  height: 48px;
  transition: background 0.3s, box-shadow 0.3s;
}
.channel-nav.stuck {
  background: rgba(7, 13, 26, 0.92);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.channel-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.channel-nav-inner::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: all 0.25s;
  border: 1px solid transparent;
}
.channel-link i { font-size: 13px; }
.channel-link:hover {
  color: var(--color-primary-light);
  background: rgba(18, 102, 241, 0.12);
}
.channel-link.active {
  background: rgba(18, 102, 241, 0.2);
  border-color: rgba(0, 194, 255, 0.3);
  color: var(--color-primary-light);
  font-weight: 500;
  box-shadow: 0 0 12px rgba(18, 102, 241, 0.15);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 52px 0 44px;
  border-bottom: 1px solid var(--glass-border);
  background: linear-gradient(110deg, rgba(7,13,26,0.94) 0%, rgba(7,13,26,0.78) 50%, rgba(7,13,26,0.55) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow: hidden;
}
.article-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--color-bg));
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb i {
  font-size: 9px;
  color: var(--color-text-muted);
}
.breadcrumb .current {
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 280px;
}
.article-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 18px;
  color: #fff;
  max-width: 800px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-muted);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta i { font-size: 13px; color: var(--color-primary-light); }
.article-meta .meta-cat .tag {
  font-size: 11px;
  padding: 2px 10px;
}

/* ===== Article Main ===== */
.article-main {
  padding: 48px 0 40px;
  position: relative;
}
.article-body-wrap {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 48px 44px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* ===== Article Body Typography ===== */
.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
}
.article-body p {
  margin-bottom: 1.5em;
}
.article-body a {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}
.article-body a:hover { opacity: 0.8; }
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  border-left: 4px solid var(--color-accent);
  padding-left: 14px;
  margin: 2em 0 1em;
  color: #fff;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 1.6em 0 0.8em;
  color: #fff;
  line-height: 1.4;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 1.4em 0 0.6em;
  color: var(--color-text);
}
.article-body img {
  width: 100%;
  border-radius: 12px;
  margin: 1.5em 0 0.5em;
}
.article-body figcaption,
.article-body .img-caption,
.article-body img + em {
  display: block;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  font-style: normal;
  margin-bottom: 1.5em;
}
.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  background: rgba(18, 102, 241, 0.06);
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.5em 0;
  color: var(--color-text-secondary);
  font-style: italic;
}
.article-body ul,
.article-body ol {
  margin: 1em 0 1.5em;
  padding-left: 1.4em;
}
.article-body ul li {
  list-style: disc;
  margin-bottom: 0.4em;
}
.article-body ol li {
  list-style: decimal;
  margin-bottom: 0.4em;
}
.article-body code {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 14px;
  color: #FFD479;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
}
.article-body pre {
  background: var(--color-bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 1.5em 0;
}
.article-body pre code {
  background: none;
  padding: 0;
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.7;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
}
.article-body th,
.article-body td {
  padding: 12px 14px;
  border: 1px solid var(--glass-border);
  text-align: left;
}
.article-body th {
  background: var(--color-bg-secondary);
  color: #fff;
  font-weight: 600;
}
.article-body tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--glass-border);
  margin: 2em 0;
}

/* ===== Share Bar ===== */
.share-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--glass-border);
}
.share-label {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-right: 4px;
}
.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--color-text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all 0.25s;
}
.share-btn:hover {
  color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  box-shadow: 0 0 12px rgba(0, 194, 255, 0.3);
  transform: translateY(-2px);
}
.share-btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 60px 0 40px;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  position: relative;
  padding-left: 14px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  display: block;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(18, 102, 241, 0.18);
  border-color: rgba(0, 194, 255, 0.3);
}
.related-card:hover .card-thumb img {
  transform: scale(1.05);
}
.card-thumb {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.card-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,13,26,0.4), transparent 60%);
}
.duration {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 6px;
  z-index: 2;
  backdrop-filter: blur(4px);
}
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(18, 102, 241, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  z-index: 2;
  opacity: 0;
  transition: all 0.25s;
}
.related-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}
.card-body {
  padding: 16px 16px 18px;
}
.card-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
  transition: color 0.2s;
}
.related-card:hover .card-body h3 {
  color: var(--color-primary-light);
}
.card-date {
  font-size: 13px;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-date i { font-size: 12px; }

/* ===== Back Button ===== */
.back-btn-wrap {
  text-align: center;
  margin-top: 36px;
}
.back-btn-wrap .btn-outline {
  min-width: 200px;
  justify-content: center;
}

/* ===== Empty State ===== */
.article-empty {
  text-align: center;
  padding: 60px 20px;
}
.article-empty i {
  font-size: 48px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  display: block;
}
.article-empty .empty-icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px dashed var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}
.article-empty h2 {
  font-size: 24px;
  color: #fff;
  margin-bottom: 10px;
}
.article-empty p {
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  font-size: 15px;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, rgba(0, 194, 255, 0.1), transparent 70%), var(--color-bg-secondary);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  text-align: center;
}
.cta-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.4;
}
.cta-inner h2 span {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cta-inner p {
  color: var(--color-text-secondary);
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.7;
}
.cta-inner .btn-outline-light {
  min-width: 180px;
  justify-content: center;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-brand {
  padding-right: 24px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-desc {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--color-text-secondary);
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-secondary);
  font-size: 13px;
  line-height: 1.5;
}
.footer-contact i {
  color: var(--color-primary-light);
  font-size: 14px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.footer-social {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text-secondary);
  font-size: 15px;
  transition: all 0.25s;
}
.social-icon:hover {
  background: rgba(18, 102, 241, 0.15);
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 0 20px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.footer-bottom .icp {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: rgba(18, 102, 241, 0.4);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(18, 102, 241, 0.6);
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .header-actions .search-box { width: 170px; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}
@media screen and (max-width: 768px) {
  .header-top { height: auto; padding: 14px 0; flex-wrap: wrap; }
  .header-actions { width: 100%; justify-content: flex-end; gap: 8px; }
  .search-box { flex: 1; max-width: none; }
  .article-hero { padding: 40px 0 32px; }
  .article-title { font-size: 24px; }
  .article-body-wrap { padding: 28px 20px; border-radius: 14px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .article-meta { gap: 10px; }
  .share-bar { flex-wrap: wrap; }
}
@media screen and (max-width: 480px) {
  .header-actions .btn-ghost { display: none; }
  .header-actions .btn-glow { display: none; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 20px; }
  .article-body h3 { font-size: 17px; }
  .breadcrumb .current { max-width: 160px; }
}

/* roulang page: category1 */
:root {
  --color-primary: #1266F1;
  --color-primary-light: #00C2FF;
  --color-primary-dark: #0A3D91;
  --color-accent: #F5A623;
  --color-bg: #070D1A;
  --color-bg-secondary: #0D1628;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --color-text: #E8EEF7;
  --color-text-secondary: #9BB0C9;
  --color-text-muted: #5C7191;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --radius-input: 10px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.02) inset;
  --shadow-hover: 0 12px 48px rgba(18,102,241,0.2);
  --transition: all 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-light); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ========== HEADER ========== */
.site-header {
  background: rgba(7,13,26,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-logo {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 0 18px rgba(18,102,241,0.5);
}
.brand-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}
.brand-text small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 1.5px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  width: 260px;
}
.search-box input {
  width: 100%;
  height: 40px;
  padding: 0 42px 0 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--color-text);
  font-size: 14px;
  transition: var(--transition);
}
.search-box input::placeholder { color: var(--color-text-muted); }
.search-box input:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(0,194,255,0.15);
  outline: none;
}
.search-box i {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 14px;
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 40px;
  padding: 0 20px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-ghost {
  background: transparent;
  border-color: var(--glass-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  background: var(--glass-bg);
  border-color: rgba(0,194,255,0.5);
  color: #fff;
  transform: translateY(-1px);
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: #fff;
  box-shadow: 0 0 24px rgba(18,102,241,0.5), 0 4px 16px rgba(0,194,255,0.2);
}
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(18,102,241,0.7), 0 6px 20px rgba(0,194,255,0.3);
  transform: translateY(-1px);
  color: #fff;
}
.btn-primary:active { transform: translateY(1px); box-shadow: 0 0 12px rgba(18,102,241,0.4); }
.btn-sm { height: 36px; padding: 0 16px; font-size: 13px; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-primary-light);
  height: 48px;
  padding: 0 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}
.btn-outline:hover {
  border-color: var(--color-primary-light);
  background: rgba(0,194,255,0.08);
  color: var(--color-primary-light);
  transform: translateY(-1px);
}
.btn-outline:active { transform: translateY(1px); }

/* ========== CHANNEL NAV ========== */
.channel-nav {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(7,13,26,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: 48px;
  display: flex;
  align-items: center;
}
.channel-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}
.channel-nav-inner::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.channel-link i { font-size: 13px; }
.channel-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
  transform: translateY(-1px);
}
.channel-link.active {
  background: rgba(18,102,241,0.2);
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  box-shadow: 0 0 16px rgba(18,102,241,0.25), inset 0 0 0 1px rgba(0,194,255,0.15);
}

/* ========== PAGE HERO ========== */
.page-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7,13,26,0.92) 0%, rgba(7,13,26,0.65) 50%, rgba(7,13,26,0.4) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 0;
  width: 100%;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb span { color: var(--color-text-muted); }
.hero-content h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* ========== SECTION COMMON ========== */
.section {
  padding: 70px 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0; top: 4px;
  width: 4px; height: 22px;
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  border-radius: 2px;
}
.section-more {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.section-more:hover { color: var(--color-primary-light); gap: 10px; }

/* ========== VIDEO CARDS ========== */
.video-grid { margin: 0 -12px; }
.video-col { padding: 0 12px; margin-bottom: 24px; }
.video-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: rgba(255,255,255,0.18);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  padding: 12px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  margin-bottom: 14px;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.3));
}
.duration {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 8px;
  z-index: 2;
  font-weight: 500;
  letter-spacing: 0.3px;
}
.play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: var(--transition);
  backdrop-filter: blur(6px);
  z-index: 2;
}
.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.15);
}
.video-card h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 13px;
  color: var(--color-text-muted);
}
.video-meta i { margin-right: 4px; }
.tag {
  display: inline-block;
  background: rgba(18,102,241,0.2);
  color: var(--color-primary-light);
  font-size: 12px;
  padding: 2px 12px;
  border-radius: 999px;
  font-weight: 500;
}

/* ========== HOT LIST ========== */
.hot-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hot-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 16px;
  transition: var(--transition);
}
.hot-item:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  transform: translateY(-2px);
}
.hot-item:nth-child(even) { flex-direction: row-reverse; }
.hot-thumb {
  width: 140px; height: 100px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.hot-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.hot-item:hover .hot-thumb img { transform: scale(1.08); }
.hot-content {
  flex: 1;
  min-width: 0;
}
.hot-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--color-text);
}
.hot-content h3 a { color: inherit; }
.hot-content h3 a:hover { color: var(--color-primary-light); }
.hot-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hot-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 8px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-hot { background: rgba(18,102,241,0.25); color: #6AB8FF; }
.badge-trend { background: rgba(245,166,35,0.2); color: var(--color-accent); }
.badge-rec { background: rgba(0,194,255,0.15); color: var(--color-primary-light); }
.btn-follow {
  height: 34px;
  padding: 0 18px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 14px rgba(18,102,241,0.35);
}
.btn-follow:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(18,102,241,0.6);
}
.btn-follow:active { transform: translateY(1px); }
.hot-item:nth-child(odd) .btn-follow {
  background: transparent;
  border: 1px solid var(--glass-border);
  box-shadow: none;
  color: var(--color-text-secondary);
}
.hot-item:nth-child(odd) .btn-follow:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(0,194,255,0.06);
}

/* ========== PAGINATION ========== */
.pagination-wrap {
  display: flex;
  justify-content: center;
  margin-top: 50px;
}
.pagination {
  display: flex;
  align-items: center;
  gap: 6px;
}
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}
.page-link:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(0,194,255,0.06);
}
.page-link.active {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 18px rgba(18,102,241,0.4);
}
.page-ellipsis {
  color: var(--color-text-muted);
  padding: 0 6px;
  font-size: 14px;
}

/* ========== STATS ========== */
.stats-section {
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  padding: 60px 0;
}
.stats-grid { margin: 0 -12px; }
.stat-col { padding: 0 12px; margin-bottom: 20px; }
.stat-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-top-color: rgba(255,255,255,0.14);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--glass-border);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.3);
}
.stat-num {
  font-size: 34px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
  font-family: "Inter","SF Pro Display","Roboto",sans-serif;
}
.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
  overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 600px; height: 400px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0,194,255,0.12), transparent 70%);
  pointer-events: none;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}
.cta-section .btn-outline {
  min-width: 200px;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 70px 0;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 50px;
}
.faq-title-col h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  padding-left: 16px;
}
.faq-title-col h2::before {
  content: '';
  position: absolute;
  left: 0; top: 4px;
  width: 4px; height: 22px;
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  border-radius: 2px;
}
.faq-title-col p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.faq-list { display: flex; flex-direction: column; }
.faq-item {
  border-bottom: 1px solid var(--glass-border);
  padding: 18px 0;
}
.faq-item:first-child { padding-top: 0; }
.faq-item details > summary {
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0;
  transition: var(--transition);
}
.faq-item details > summary::-webkit-details-marker { display: none; }
.faq-item details > summary::after {
  content: '\f067';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--color-primary-light);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item details[open] > summary::after {
  content: '\f00d';
  transform: rotate(180deg);
}
.faq-item details p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding-right: 30px;
  padding-bottom: 4px;
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 320px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
}
.footer-links, .footer-contact {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--color-primary-light);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
}
.footer-contact i {
  width: 16px;
  color: var(--color-primary-light);
  font-size: 14px;
}
.footer-social {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.social-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 16px;
  transition: var(--transition);
}
.social-icon:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(18,102,241,0.2);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.footer-bottom .icp i { margin-right: 4px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1023px) {
  .search-box { width: 180px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .faq-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-content h1 { font-size: 32px; }
}

@media (max-width: 767px) {
  .search-box { display: none; }
  .btn-ghost, .btn-primary { display: none; }
  .brand-text { font-size: 15px; }
  .brand-text small { font-size: 9px; }
  .section { padding: 50px 0; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 22px; }
  .hero-content h1 { font-size: 28px; }
  .hot-item, .hot-item:nth-child(even) {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .hot-thumb { width: 100%; height: 160px; }
  .hot-side {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  .stats-grid .stat-col, .video-col { padding: 0 8px; }
  .stats-grid { margin: 0 -8px; }
  .video-grid { margin: 0 -8px; }
  .pagination { gap: 4px; }
  .page-link { width: 38px; height: 38px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 24px; }
  .faq-section { padding: 50px 0; }
  .brand-row { height: 64px; }
  .channel-nav { height: 44px; }
  .channel-link { height: 32px; padding: 0 14px; font-size: 13px; }
  .video-card h3 { min-height: auto; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .channel-nav-inner { padding: 0 16px; }
  .hero-content h1 { font-size: 24px; }
  .hero-desc { font-size: 14px; }
  .hot-content h3 { font-size: 15px; white-space: normal; -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; }
  .hot-content p { -webkit-line-clamp: 2; }
  .stat-num { font-size: 28px; }
  .btn-outline { width: 100%; max-width: 280px; }
}