/* ============================================
   小蓝视频 - 原创样式表
   品牌：小蓝视频 | 域名：892678.cn
   配色：品牌蓝 #1A6FEF / 深蓝 #0D47A1 / 活力橙 #FF6B35
   ============================================ */

/* === 基础重置与变量 === */
:root {
  --xl-primary: #1A6FEF;
  --xl-primary-dark: #0D47A1;
  --xl-primary-light: #4A90F2;
  --xl-accent: #FF6B35;
  --xl-accent-hover: #E55A28;
  --xl-bg: #F5F7FA;
  --xl-bg-dark: #0B1426;
  --xl-bg-card: #FFFFFF;
  --xl-text: #2C3E50;
  --xl-text-light: #8B9DC3;
  --xl-text-white: #FFFFFF;
  --xl-border: #E1E8F0;
  --xl-shadow: 0 4px 20px rgba(26,111,239,0.08);
  --xl-shadow-hover: 0 8px 32px rgba(26,111,239,0.16);
  --xl-radius: 12px;
  --xl-radius-sm: 8px;
  --xl-transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --xl-gradient: linear-gradient(135deg, #1A6FEF 0%, #0D47A1 100%);
  --xl-gradient-accent: linear-gradient(135deg, #FF6B35 0%, #E55A28 100%);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--xl-text);
  background: var(--xl-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--xl-accent);
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === 顶部导航 === */
.xl-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11,20,38,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26,111,239,0.15);
  transition: var(--xl-transition);
}

.xl-header.scrolled {
  box-shadow: 0 2px 24px rgba(0,0,0,0.3);
}

.xl-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.xl-logo img {
  height: 40px;
  width: auto;
}

.xl-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--xl-text-white);
  letter-spacing: 1px;
}

.xl-logo-text span {
  color: var(--xl-primary-light);
}

.xl-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.xl-nav a {
  color: rgba(255,255,255,0.8);
  font-size: 0.94rem;
  padding: 8px 16px;
  border-radius: var(--xl-radius-sm);
  transition: var(--xl-transition);
  white-space: nowrap;
}

.xl-nav a:hover,
.xl-nav a.active {
  color: var(--xl-text-white);
  background: rgba(26,111,239,0.2);
}

.xl-nav a.active {
  background: var(--xl-primary);
}

/* 移动端菜单按钮 */
.xl-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.xl-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--xl-text-white);
  border-radius: 2px;
  transition: var(--xl-transition);
}

/* === 搜索栏 === */
.xl-search-bar {
  background: var(--xl-bg-dark);
  padding: 14px 0;
  margin-top: 68px;
  border-bottom: 1px solid rgba(26,111,239,0.1);
}

.xl-search-wrap {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  gap: 0;
}

.xl-search-input {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid var(--xl-primary);
  border-right: none;
  border-radius: var(--xl-radius-sm) 0 0 var(--xl-radius-sm);
  font-size: 0.95rem;
  background: rgba(255,255,255,0.06);
  color: var(--xl-text-white);
  outline: none;
  transition: var(--xl-transition);
}

.xl-search-input::placeholder {
  color: var(--xl-text-light);
}

.xl-search-input:focus {
  border-color: var(--xl-primary-light);
  background: rgba(255,255,255,0.1);
}

.xl-search-btn {
  padding: 12px 28px;
  background: var(--xl-gradient);
  color: var(--xl-text-white);
  border: none;
  border-radius: 0 var(--xl-radius-sm) var(--xl-radius-sm) 0;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--xl-transition);
  font-weight: 600;
}

.xl-search-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* === Hero Banner === */
.xl-hero {
  position: relative;
  background: var(--xl-bg-dark);
  overflow: hidden;
  padding: 80px 0 60px;
}

.xl-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}

.xl-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(11,20,38,0.9) 0%, rgba(26,111,239,0.3) 100%);
}

.xl-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.xl-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--xl-text-white);
  margin-bottom: 18px;
  line-height: 1.3;
}

.xl-hero h1 em {
  font-style: normal;
  color: var(--xl-primary-light);
}

.xl-hero .xl-hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  line-height: 1.8;
}

.xl-hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
}

.xl-hero-tags span {
  padding: 6px 18px;
  background: rgba(26,111,239,0.2);
  border: 1px solid rgba(26,111,239,0.3);
  border-radius: 20px;
  color: var(--xl-primary-light);
  font-size: 0.88rem;
}

.xl-hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* === 按钮 === */
.xl-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--xl-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--xl-transition);
  border: none;
  text-decoration: none;
}

.xl-btn-primary {
  background: var(--xl-gradient);
  color: var(--xl-text-white);
  box-shadow: 0 4px 16px rgba(26,111,239,0.3);
}

.xl-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26,111,239,0.4);
  color: var(--xl-text-white);
}

.xl-btn-outline {
  background: transparent;
  color: var(--xl-text-white);
  border: 2px solid rgba(255,255,255,0.3);
}

.xl-btn-outline:hover {
  border-color: var(--xl-primary-light);
  background: rgba(26,111,239,0.1);
  color: var(--xl-text-white);
}

.xl-btn-accent {
  background: var(--xl-gradient-accent);
  color: var(--xl-text-white);
}

.xl-btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.3);
  color: var(--xl-text-white);
}

/* === 通用区块 === */
.xl-section {
  padding: 72px 0;
}

.xl-section-dark {
  background: var(--xl-bg-dark);
  color: var(--xl-text-white);
}

.xl-section-alt {
  background: #EDF2F7;
}

.xl-section-title {
  text-align: center;
  margin-bottom: 48px;
}

.xl-section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--xl-text);
  margin-bottom: 12px;
}

.xl-section-dark .xl-section-title h2 {
  color: var(--xl-text-white);
}

.xl-section-title p {
  font-size: 1.05rem;
  color: var(--xl-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.xl-section-title .xl-tag {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(26,111,239,0.1);
  color: var(--xl-primary);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.xl-section-dark .xl-section-title .xl-tag {
  background: rgba(26,111,239,0.2);
  color: var(--xl-primary-light);
}

/* === 视频卡片网格 === */
.xl-video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.xl-video-card {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius);
  overflow: hidden;
  box-shadow: var(--xl-shadow);
  transition: var(--xl-transition);
  cursor: pointer;
}

.xl-video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--xl-shadow-hover);
}

.xl-video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.xl-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.xl-video-card:hover .xl-video-thumb img {
  transform: scale(1.06);
}

.xl-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  background: rgba(26,111,239,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--xl-transition);
}

.xl-play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent white;
  margin-left: 3px;
}

.xl-video-card:hover .xl-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.xl-video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 500;
}

.xl-video-info {
  padding: 16px;
}

.xl-video-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--xl-text);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.xl-video-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--xl-text-light);
}

.xl-video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* === 分类标签栏 === */
.xl-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.xl-tab {
  padding: 8px 22px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--xl-text);
  background: var(--xl-bg-card);
  border: 1px solid var(--xl-border);
  cursor: pointer;
  transition: var(--xl-transition);
}

.xl-tab:hover,
.xl-tab.active {
  background: var(--xl-primary);
  color: var(--xl-text-white);
  border-color: var(--xl-primary);
}

/* === 电竞传媒区 === */
.xl-esports-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.xl-esports-card {
  position: relative;
  border-radius: var(--xl-radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  cursor: pointer;
}

.xl-esports-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.xl-esports-card:hover img {
  transform: scale(1.05);
}

.xl-esports-card .xl-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: white;
}

.xl-esports-card .xl-card-overlay h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.xl-esports-card .xl-card-overlay p {
  font-size: 0.88rem;
  opacity: 0.8;
}

.xl-esports-card .xl-play-btn {
  opacity: 0;
}

.xl-esports-card:hover .xl-play-btn {
  opacity: 1;
}

/* === 特色模块网格 === */
.xl-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.xl-feature-card {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--xl-shadow);
  transition: var(--xl-transition);
  border: 1px solid transparent;
}

.xl-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--xl-shadow-hover);
  border-color: var(--xl-primary);
}

.xl-feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(26,111,239,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}

.xl-feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--xl-text);
}

.xl-feature-card p {
  font-size: 0.9rem;
  color: var(--xl-text-light);
  line-height: 1.7;
}

/* === 专家团队 === */
.xl-expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.xl-expert-card {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius);
  overflow: hidden;
  box-shadow: var(--xl-shadow);
  transition: var(--xl-transition);
  text-align: center;
}

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

.xl-expert-avatar {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
}

.xl-expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.xl-expert-card:hover .xl-expert-avatar img {
  transform: scale(1.05);
}

.xl-expert-info {
  padding: 20px;
}

.xl-expert-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--xl-text);
  margin-bottom: 4px;
}

.xl-expert-info .xl-expert-title {
  font-size: 0.85rem;
  color: var(--xl-primary);
  margin-bottom: 10px;
  font-weight: 500;
}

.xl-expert-info p {
  font-size: 0.85rem;
  color: var(--xl-text-light);
  line-height: 1.6;
  margin-bottom: 14px;
}

.xl-expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.xl-expert-btns a {
  padding: 6px 14px;
  font-size: 0.8rem;
  border-radius: 6px;
  font-weight: 500;
}

.xl-expert-btns .xl-btn-sm-primary {
  background: var(--xl-primary);
  color: white;
}

.xl-expert-btns .xl-btn-sm-outline {
  border: 1px solid var(--xl-border);
  color: var(--xl-text);
}

/* === 合作品牌墙 === */
.xl-brand-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}

.xl-brand-item {
  padding: 16px 28px;
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius-sm);
  border: 1px solid var(--xl-border);
  font-size: 1rem;
  font-weight: 600;
  color: var(--xl-text-light);
  transition: var(--xl-transition);
}

.xl-brand-item:hover {
  border-color: var(--xl-primary);
  color: var(--xl-primary);
  box-shadow: var(--xl-shadow);
}

/* === FAQ === */
.xl-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.xl-faq-item {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--xl-border);
  overflow: hidden;
  transition: var(--xl-transition);
}

.xl-faq-item:hover {
  border-color: var(--xl-primary);
}

.xl-faq-q {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--xl-text);
  transition: var(--xl-transition);
}

.xl-faq-q:hover {
  color: var(--xl-primary);
}

.xl-faq-q::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--xl-primary);
  transition: var(--xl-transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.xl-faq-item.open .xl-faq-q::after {
  content: '−';
}

.xl-faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 0.92rem;
  color: var(--xl-text-light);
  line-height: 1.8;
}

.xl-faq-item.open .xl-faq-a {
  padding: 0 24px 18px;
  max-height: 400px;
}

/* === 用户评价 === */
.xl-review-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.xl-review-card {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius);
  padding: 28px;
  box-shadow: var(--xl-shadow);
  transition: var(--xl-transition);
}

.xl-review-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--xl-shadow-hover);
}

.xl-review-stars {
  color: #F5A623;
  font-size: 0.9rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.xl-review-card p {
  font-size: 0.9rem;
  color: var(--xl-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.xl-review-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.xl-review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--xl-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
}

.xl-review-name {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--xl-text);
}

.xl-review-date {
  font-size: 0.78rem;
  color: var(--xl-text-light);
}

/* === 联系我们 === */
.xl-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.xl-contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.xl-contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.xl-contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(26,111,239,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.xl-contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.xl-contact-item p {
  font-size: 0.88rem;
  color: var(--xl-text-light);
}

.xl-qrcode-wrap {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.xl-qrcode-item {
  text-align: center;
}

.xl-qrcode-item img {
  width: 160px;
  height: 160px;
  border-radius: var(--xl-radius-sm);
  margin-bottom: 8px;
  border: 1px solid var(--xl-border);
}

.xl-qrcode-item p {
  font-size: 0.85rem;
  color: var(--xl-text-light);
}

/* === 页脚 === */
.xl-footer {
  background: var(--xl-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 0;
}

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

.xl-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.xl-footer-brand img {
  height: 36px;
  width: auto;
}

.xl-footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
}

.xl-footer h4 {
  color: var(--xl-text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.xl-footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.xl-footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  transition: var(--xl-transition);
}

.xl-footer-links a:hover {
  color: var(--xl-primary-light);
}

.xl-footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

.xl-footer-bottom a {
  color: rgba(255,255,255,0.5);
}

/* === 社交分享 === */
.xl-share-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.xl-share-btn {
  padding: 10px 20px;
  border-radius: var(--xl-radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  transition: var(--xl-transition);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.xl-share-btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.xl-share-wechat { background: #07C160; }
.xl-share-weibo { background: #E6162D; }
.xl-share-douyin { background: #161823; }
.xl-share-bilibili { background: #00A1D6; }

/* === 面包屑 === */
.xl-breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--xl-text-light);
}

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

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

.xl-breadcrumb span {
  margin: 0 8px;
  color: var(--xl-border);
}

/* === 内页通用 === */
.xl-page-hero {
  background: var(--xl-bg-dark);
  padding: 40px 0;
  margin-top: 68px;
}

.xl-page-hero h1 {
  font-size: 2rem;
  color: var(--xl-text-white);
  font-weight: 700;
  margin-bottom: 8px;
}

.xl-page-hero p {
  color: var(--xl-text-light);
  font-size: 1rem;
}

/* === How-To 指南 === */
.xl-howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.xl-howto-step {
  background: var(--xl-bg-card);
  border-radius: var(--xl-radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--xl-shadow);
  position: relative;
  counter-increment: step;
}

.xl-howto-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--xl-gradient);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 auto 16px;
}

.xl-howto-step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.xl-howto-step p {
  font-size: 0.88rem;
  color: var(--xl-text-light);
}

/* === 数据统计条 === */
.xl-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
}

.xl-stat-item {
  text-align: center;
}

.xl-stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--xl-primary-light);
  margin-bottom: 4px;
}

.xl-stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

/* === 懒加载占位 === */
.xl-lazy {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.xl-lazy.loaded {
  opacity: 1;
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .xl-video-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .xl-expert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .xl-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .xl-review-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .xl-menu-btn {
    display: flex;
  }
  
  .xl-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(11,20,38,0.98);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    transition: var(--xl-transition);
    border-bottom: 1px solid rgba(26,111,239,0.15);
  }
  
  .xl-nav.open {
    transform: translateY(0);
  }
  
  .xl-nav a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }
  
  .xl-hero h1 {
    font-size: 1.8rem;
  }
  
  .xl-video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .xl-esports-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-feature-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-expert-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .xl-contact-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-howto-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .xl-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .xl-footer-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-review-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-section {
    padding: 48px 0;
  }
  
  .xl-section-title h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .xl-video-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-expert-grid {
    grid-template-columns: 1fr;
  }
  
  .xl-howto-steps {
    grid-template-columns: 1fr;
  }
  
  .xl-hero h1 {
    font-size: 1.5rem;
  }
  
  .xl-hero-btns {
    flex-direction: column;
    align-items: center;
  }
}

/* === 动画 === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.xl-animate {
  animation: fadeInUp 0.6s ease forwards;
}

/* === 社区功能卡片 === */
.xl-community-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.xl-community-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--xl-radius);
  padding: 28px;
  text-align: center;
  transition: var(--xl-transition);
}

.xl-community-card:hover {
  background: rgba(26,111,239,0.1);
  border-color: rgba(26,111,239,0.3);
  transform: translateY(-3px);
}

.xl-community-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--xl-text-white);
  margin-bottom: 8px;
}

.xl-community-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.xl-community-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

/* === 回到顶部 === */
.xl-back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--xl-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--xl-transition);
  z-index: 999;
  border: none;
  box-shadow: 0 4px 16px rgba(26,111,239,0.3);
}

.xl-back-top.visible {
  opacity: 1;
  visibility: visible;
}

.xl-back-top:hover {
  transform: translateY(-3px);
}

/* === 文章内容页样式 === */
.xl-article-content {
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.9;
}

.xl-article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--xl-text);
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--xl-primary);
}

.xl-article-content p {
  font-size: 0.95rem;
  color: var(--xl-text);
  margin-bottom: 14px;
  text-indent: 0;
}

.xl-article-date {
  font-size: 0.85rem !important;
  color: var(--xl-text-light) !important;
  padding: 12px 0 24px;
  border-bottom: 1px solid var(--xl-border);
  margin-bottom: 28px !important;
}

/* === H5视频播放器卡片 === */
.xl-h5video-card {
  position: relative;
  border-radius: var(--xl-radius);
  overflow: hidden;
  background: #000;
  cursor: pointer;
}

.xl-h5video-card video {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.xl-h5video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--xl-transition);
  pointer-events: none;
}

.xl-h5video-card:hover .xl-h5video-overlay {
  opacity: 1;
}

.xl-h5video-play {
  width: 64px;
  height: 64px;
  background: rgba(26,111,239,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: var(--xl-transition);
}

.xl-h5video-card:hover .xl-h5video-play {
  transform: scale(1.1);
}

.xl-h5video-play::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 22px;
  border-color: transparent transparent transparent white;
  margin-left: 4px;
}

.xl-h5video-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: white;
}

.xl-h5video-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.xl-h5video-info p {
  font-size: 0.82rem;
  opacity: 0.8;
}

.xl-h5video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* === EEAT 编辑信息样式 === */
.xl-editor-info {
  background: var(--xl-bg-card);
  border: 1px solid var(--xl-border);
  border-radius: var(--xl-radius);
  padding: 20px 24px;
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.xl-editor-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--xl-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.xl-editor-detail h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--xl-text);
  margin-bottom: 2px;
}

.xl-editor-detail p {
  font-size: 0.82rem;
  color: var(--xl-text-light);
}

@media (max-width: 768px) {
  .xl-h5video-grid {
    grid-template-columns: 1fr;
  }
  .xl-editor-info {
    flex-direction: column;
    text-align: center;
  }
}