/* ============================================
   全局样式 - 独特深蓝渐变体育风格
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=Orbitron:wght@400;700;900&display=swap');

:root {
  --primary: #0a1628;
  --primary-light: #132744;
  --accent: #00e5ff;
  --accent-warm: #ff6d00;
  --accent-gold: #ffd740;
  --text-main: #e8eaf6;
  --text-secondary: #90a4ae;
  --surface: #0d2137;
  --surface-card: #112a45;
  --surface-hover: #1a3a5c;
  --border: rgba(0, 229, 255, 0.15);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Orbitron', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-cn);
  background: var(--primary);
  color: var(--text-main);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* ============================================
   导航栏 - 非sticky
   ============================================ */
.site-header {
  background: linear-gradient(135deg, #050d1a 0%, #0a1e3d 100%);
  border-bottom: 2px solid var(--border);
  position: relative;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 5%;
  max-width: 1400px;
  margin: 0 auto;
}

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

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo span {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

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

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 28px;
  background: linear-gradient(135deg, var(--accent-warm), #ff9100);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(255, 109, 0, 0.4);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 109, 0, 0.6);
  color: #fff;
}

.main-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav-list {
  display: flex;
  list-style: none;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-list li {
  flex-shrink: 0;
}

.nav-list a {
  display: block;
  padding: 14px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
}

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumb {
  padding: 12px 5%;
  max-width: 1400px;
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  opacity: 0.5;
}

/* ============================================
   Hero区域
   ============================================ */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #050d1a 0%, #0a2a4a 50%, #051525 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 13, 26, 0.6) 0%, rgba(10, 22, 40, 0.9) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1400px;
  margin: 0 auto;
  padding: 60px 5%;
  width: 100%;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 30px;
}

.hero-stats {
  display: flex;
  gap: 30px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat .num {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent-gold);
}

.hero-stat .label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   通用容器
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: 60px 0;
}

.section-alt {
  background: var(--surface);
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  margin-bottom: 12px;
  color: var(--text-main);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 40px;
  max-width: 700px;
}

/* ============================================
   比分概览卡片
   ============================================ */
.score-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.score-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.score-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.score-card .match-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  font-size: 0.8rem;
  color: var(--accent);
}

.score-card .teams {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}

.score-card .team {
  text-align: center;
  flex: 1;
}

.score-card .team-name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 8px;
}

.score-card .vs-score {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent-gold);
  min-width: 80px;
  text-align: center;
}

.score-card .match-status {
  text-align: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.live-badge {
  display: inline-block;
  padding: 2px 10px;
  background: #f44336;
  color: #fff;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ============================================
   视频直播模块
   ============================================ */
.live-video-section {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 30px 0;
  cursor: pointer;
}

.live-video-section img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.play-btn-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  transition: var(--transition);
}

.play-btn-overlay:hover {
  background: rgba(0, 0, 0, 0.2);
}

.play-btn {
  width: 80px;
  height: 80px;
  background: rgba(255, 109, 0, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: 0 0 40px rgba(255, 109, 0, 0.5);
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 0 15px 28px;
  border-color: transparent transparent transparent #fff;
  margin-left: 5px;
}

.play-btn-overlay:hover .play-btn {
  transform: scale(1.15);
}

/* ============================================
   游戏卡片网格
   ============================================ */
.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.game-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
  border-color: var(--accent);
}

.game-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
}

.game-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.game-card:hover .card-img img {
  transform: scale(1.08);
}

.game-card .card-body {
  padding: 20px;
}

.game-card .card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.game-card .card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 15px;
}

.game-card .card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ============================================
   巨星合作模块
   ============================================ */
.stars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.star-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
  padding-bottom: 20px;
}

.star-card:hover {
  border-color: var(--accent-gold);
  box-shadow: 0 8px 30px rgba(255, 215, 64, 0.15);
}

.star-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.star-card h3 {
  margin-top: 15px;
  font-size: 1.1rem;
  color: var(--accent-gold);
}

.star-card p {
  padding: 0 15px;
  margin-top: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ============================================
   赛事合作模块
   ============================================ */
.league-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.league-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 220px;
  display: flex;
  align-items: flex-end;
}

.league-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.league-card .league-info {
  position: relative;
  z-index: 2;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  width: 100%;
}

.league-card h3 {
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 6px;
}

.league-card p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   资讯新闻模块
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.news-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.news-card:hover {
  border-color: var(--accent);
}

.news-card .news-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.news-card .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card .news-body {
  padding: 20px;
}

.news-card .news-date {
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.news-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}

.news-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ============================================
   FAQ手风琴
   ============================================ */
.faq-list {
  margin-top: 30px;
}

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

.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  transition: var(--transition);
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

/* ============================================
   用户评论
   ============================================ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.review-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.review-author {
  font-weight: 700;
  font-size: 1rem;
}

.review-city {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.review-stars {
  color: var(--accent-gold);
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.review-date {
  font-size: 0.78rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ============================================
   支付方式
   ============================================ */
.payment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.payment-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.payment-card:hover {
  border-color: var(--accent);
}

.payment-card img {
  width: 60px;
  height: 60px;
  margin: 0 auto 12px;
  border-radius: 50%;
}

.payment-card h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.payment-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ============================================
   牌照区域
   ============================================ */
.license-section {
  text-align: center;
}

.license-badges {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.license-badge {
  text-align: center;
}

.license-badge img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid var(--accent-gold);
  margin-bottom: 10px;
}

.license-badge p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   客户支持
   ============================================ */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.support-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.support-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.support-card img {
  width: 60px;
  height: 60px;
  margin: 0 auto 15px;
  border-radius: 50%;
}

.support-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.support-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   关于我们
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 30px;
}

.about-text {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--text-secondary);
}

.about-text h3 {
  color: var(--text-main);
  font-size: 1.2rem;
  margin: 20px 0 10px;
}

.about-img {
  border-radius: var(--radius);
  overflow: hidden;
}

.about-img img {
  width: 100%;
  border-radius: var(--radius);
}

/* ============================================
   作者信息
   ============================================ */
.author-box {
  display: flex;
  gap: 20px;
  align-items: center;
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 24px;
  margin: 30px 0;
  border: 1px solid var(--border);
}

.author-box img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

.author-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.author-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   负责任声明
   ============================================ */
.responsible-section {
  background: linear-gradient(135deg, #1a0000, #2d0a0a);
  border: 1px solid rgba(244, 67, 54, 0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 30px 0;
}

.responsible-section h3 {
  color: #ef5350;
  margin-bottom: 20px;
}

.responsible-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
  list-style: none;
}

.responsible-list li {
  padding: 12px 16px;
  background: rgba(244, 67, 54, 0.1);
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-left: 3px solid #ef5350;
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  background: linear-gradient(180deg, #050a14, #020508);
  border-top: 1px solid var(--border);
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 30px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--accent);
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-card);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.footer-social img {
  width: 20px;
  height: 20px;
}

.footer-payment {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.footer-payment img {
  width: 50px;
  height: 50px;
  border-radius: 8px;
}

.footer-bottom {
  margin-top: 40px;
  padding: 20px 5%;
  border-top: 1px solid var(--border);
  text-align: center;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.footer-age-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.footer-age-badge img {
  width: 40px;
  height: 40px;
}

/* ============================================
   内页样式
   ============================================ */
.page-hero {
  padding: 50px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 15px;
  background: linear-gradient(90deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.content-section {
  padding: 40px 0;
}

.content-body {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 2;
  color: var(--text-secondary);
}

.content-body h2 {
  color: var(--text-main);
  font-size: 1.5rem;
  margin: 35px 0 15px;
}

.content-body h3 {
  color: var(--accent);
  font-size: 1.2rem;
  margin: 25px 0 12px;
}

.content-body p {
  margin-bottom: 16px;
}

.content-body img {
  border-radius: var(--radius);
  margin: 20px 0;
}

.content-body ul, .content-body ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.content-body li {
  margin-bottom: 8px;
}

.content-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

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

.content-body table th {
  background: var(--surface-card);
  color: var(--accent);
  font-weight: 700;
}

.content-body table td {
  background: var(--surface);
}

/* ============================================
   APP下载页面
   ============================================ */
.app-hero {
  text-align: center;
  padding: 60px 0;
  background: linear-gradient(135deg, #050d1a, #0a2a4a);
}

.app-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  background: linear-gradient(90deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 15px;
}

.app-download-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.app-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 36px;
  background: var(--surface-card);
  border: 2px solid var(--accent);
  border-radius: 60px;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 700;
  transition: var(--transition);
}

.app-download-btn:hover {
  background: var(--accent);
  color: var(--primary);
}

.app-download-btn img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.app-screenshots {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.app-screenshots img {
  width: 200px;
  border-radius: var(--radius);
  border: 2px solid var(--border);
}

.app-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.app-feature-card {
  background: var(--surface-card);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  border: 1px solid var(--border);
}

.app-feature-card .feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 15px;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.app-feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.app-feature-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ============================================
   响应式设计 - 移动优先
   ============================================ */
@media (max-width: 768px) {
  .header-top {
    padding: 10px 4%;
  }

  .mobile-menu-btn {
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 0;
  }

  .nav-list.active {
    display: flex;
  }

  .nav-list a {
    padding: 12px 20px;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .nav-list a:hover,
  .nav-list a.active {
    border-bottom: none;
    border-left-color: var(--accent);
  }

  .hero-section {
    min-height: 400px;
  }

  .hero-content {
    padding: 40px 4%;
  }

  .hero-stats {
    gap: 20px;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .score-grid,
  .game-grid,
  .stars-grid,
  .league-grid,
  .news-grid,
  .reviews-grid,
  .payment-grid,
  .support-grid {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 40px 0;
  }

  .responsible-section {
    padding: 24px;
  }

  .responsible-list {
    grid-template-columns: 1fr;
  }

  .app-screenshots img {
    width: 150px;
  }

  .app-download-btns {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

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

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
  }

  .license-badges {
    flex-direction: column;
    align-items: center;
  }
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* 滚动动画 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-gold { color: var(--accent-gold); }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }