/* ===========================
   开云体育官网 - 主样式表
   official-win-kysport.com
   =========================== */

/* ---- CSS变量 ---- */
:root {
  --primary: #003366;
  --primary-dark: #001f40;
  --gold: #D4AF37;
  --gold-light: #f0d060;
  --text: #222222;
  --text-light: #666666;
  --bg: #FFFFFF;
  --bg-light: #F5F7FA;
  --bg-dark: #0a0a1a;
  --border: #e5e7eb;
  --shadow: 0 4px 24px rgba(0,0,0,0.10);
  --radius: 10px;
  --transition: 0.3s ease;
}

/* ---- 重置 ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; outline: none; background: none; }

/* ---- 通用布局 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section--dark { background: var(--bg-dark); color: #fff; }
.section--light { background: var(--bg-light); }
.section--gold { background: var(--primary); color: #fff; }

/* ---- 标题系统 ---- */
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.section-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--primary);
}
.section--dark .section-title,
.section--gold .section-title { color: #fff; }
.section-subtitle {
  font-size: 17px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 60px;
  text-align: center;
}
.section--dark .section-subtitle { color: #aaa; }
.text-center { text-align: center; }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  letter-spacing: 1px;
}
.btn-primary {
  background: var(--gold);
  color: #fff;
  box-shadow: 0 4px 16px rgba(212,175,55,0.3);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }
.btn-outline {
  border: 2px solid var(--gold);
  color: var(--gold);
}
.btn-outline:hover { background: var(--gold); color: #fff; }

/* ---- 顶部导航 ---- */
#header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 26px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 2px;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 20px;
  font-weight: 900;
}
.logo span { color: var(--gold); }
nav.main-nav { display: flex; align-items: center; gap: 6px; }
nav.main-nav a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  border-radius: 4px;
  transition: var(--transition);
  position: relative;
}
nav.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}
nav.main-nav a:hover { color: var(--primary); }
nav.main-nav a:hover::after { width: 60%; }
nav.main-nav a.active { color: var(--primary); }
nav.main-nav a.active::after { width: 60%; }

/* ---- 搜索栏 ---- */
.search-bar-wrap {
  border-top: 1px solid var(--border);
  padding: 10px 0;
  background: var(--bg-light);
}
.search-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 700px;
  margin: 0 auto;
}
.search-bar input {
  flex: 1;
  padding: 10px 18px;
  border: 1.5px solid var(--border);
  border-radius: 24px;
  font-size: 14px;
  background: #fff;
  transition: var(--transition);
  outline: none;
}
.search-bar input:focus { border-color: var(--primary); }
.search-bar button {
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}
.search-bar button:hover { background: var(--gold); }

/* ---- 汉堡菜单（移动端） ---- */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { display: block; width: 26px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }

/* ---- Hero Banner ---- */
.hero {
  position: relative;
  height: 620px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/banner.jpg') center/cover no-repeat;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero:hover .hero-bg { transform: scale(1.0); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,30,80,0.78) 0%, rgba(0,0,0,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 860px;
  padding: 0 24px;
}
.hero-badge {
  display: inline-block;
  background: var(--gold);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 54px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.hero h1 em { font-style: normal; color: var(--gold); }
.hero p {
  font-size: 20px;
  margin-bottom: 36px;
  color: rgba(255,255,255,0.88);
  line-height: 1.6;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- 滚动数据条 ---- */
.ticker {
  background: var(--primary);
  color: #fff;
  padding: 12px 0;
  overflow: hidden;
}
.ticker-inner {
  display: flex;
  gap: 60px;
  white-space: nowrap;
  animation: ticker-scroll 30s linear infinite;
}
.ticker-item { font-size: 13px; letter-spacing: 1px; }
.ticker-item span { color: var(--gold); font-weight: 700; margin-right: 6px; }
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---- 视频卡片网格 ---- */
.video-section { background: var(--bg); }
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}
.video-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(0,0,0,0.14); }
.video-thumb-wrap {
  position: relative;
  overflow: hidden;
  height: 190px;
}
.video-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb { transform: scale(1.06); }
.video-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,30,80,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .video-overlay { opacity: 1; }
.play-btn {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform var(--transition);
}
.play-btn:hover { transform: scale(1.1); }
.play-btn::after {
  content: '';
  border-style: solid;
  border-width: 12px 0 12px 22px;
  border-color: transparent transparent transparent var(--primary);
  margin-left: 5px;
}
.video-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gold);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 3px;
  letter-spacing: 1px;
}
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 3px;
}
.video-info { padding: 18px 20px 20px; }
.video-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--text);
}
.video-desc {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 14px;
  line-height: 1.6;
}
.video-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #999;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.video-meta-left { display: flex; gap: 12px; }

/* ---- 数据成果 ---- */
.stats-section { background: var(--primary); padding: 70px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item { padding: 20px; }
.stat-num {
  font-size: 52px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 10px;
}
.stat-label { font-size: 15px; color: rgba(255,255,255,0.8); letter-spacing: 1px; }

/* ---- 品牌理念 ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-text .section-title { text-align: left; }
.about-text .section-label { display: block; }
.about-list { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.about-list-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-light);
  border-radius: 8px;
  border-left: 3px solid var(--gold);
}
.about-list-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 16px;
  flex-shrink: 0;
}
.about-list-text h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.about-list-text p { font-size: 13px; color: var(--text-light); }

/* ---- 核心业务 ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  border-top: 3px solid transparent;
  transition: var(--transition);
  text-align: center;
}
.service-card:hover { border-top-color: var(--gold); transform: translateY(-4px); }
.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ---- 团队 ---- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-4px); }
.team-avatar-wrap {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  color: var(--gold);
}
.team-info { padding: 20px; }
.team-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.team-role { font-size: 13px; color: var(--gold); font-weight: 600; margin-bottom: 10px; }
.team-desc { font-size: 13px; color: var(--text-light); }

/* ---- 媒体报道 ---- */
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.media-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--gold);
  transition: var(--transition);
}
.media-card:hover { transform: translateX(4px); }
.media-source { font-size: 12px; font-weight: 700; color: var(--gold); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.media-title { font-size: 17px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; color: var(--primary); }
.media-excerpt { font-size: 13px; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.media-date { font-size: 12px; color: #bbb; }

/* ---- 用户评价 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  position: relative;
}
.review-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  left: 24px;
  font-size: 60px;
  color: var(--gold);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}
.review-text { font-size: 15px; color: var(--text); line-height: 1.8; margin-bottom: 20px; padding-top: 10px; }
.review-author { display: flex; align-items: center; gap: 14px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}
.review-name { font-weight: 700; font-size: 15px; }
.review-role { font-size: 12px; color: var(--text-light); }
.review-stars { color: var(--gold); font-size: 14px; margin-top: 2px; }

/* ---- FAQ ---- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  text-align: left;
  padding: 22px 20px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
  background: none;
}
.faq-q:hover { color: var(--gold); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
  font-style: normal;
}
.faq-q.active .faq-icon { transform: rotate(45deg); background: var(--gold); }
.faq-a {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}
.faq-a.open { max-height: 300px; padding: 0 20px 22px; }

/* ---- 合作入口 ---- */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 90px 0;
  text-align: center;
  color: #fff;
}
.cta-section h2 { font-size: 40px; font-weight: 900; margin-bottom: 16px; }
.cta-section p { font-size: 18px; color: rgba(255,255,255,0.8); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- 联系我们 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 { font-size: 26px; font-weight: 800; margin-bottom: 24px; color: var(--primary); }
.contact-item { display: flex; gap: 16px; margin-bottom: 20px; align-items: flex-start; }
.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 20px;
  flex-shrink: 0;
}
.contact-text h4 { font-weight: 700; margin-bottom: 4px; }
.contact-text p { font-size: 14px; color: var(--text-light); }
.contact-form { background: var(--bg-light); padding: 36px; border-radius: var(--radius); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  transition: var(--transition);
  outline: none;
  font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.form-submit:hover { background: var(--gold); }

/* ---- 社交分享 ---- */
.social-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 30px;
}
.social-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
  color: #fff;
}
.social-btn:hover { opacity: 0.85; transform: translateY(-2px); }
.social-wechat { background: #07C160; }
.social-weibo { background: #E6162D; }
.social-douyin { background: #000; }
.social-xiaohongshu { background: #FF2442; }
.social-bilibili { background: #00A1D6; }

/* ---- 页脚 ---- */
#footer {
  background: #0d0d1a;
  color: #fff;
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.8; margin-top: 12px; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--gold); }
.update-time { color: var(--gold); font-weight: 600; }

/* ---- 面包屑 ---- */
.breadcrumb {
  background: var(--bg-light);
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-light);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 8px; }

/* ---- 更新时间标签 ---- */
.update-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #999;
  margin-top: 8px;
}

/* ---- 搜索弹窗 ---- */
.search-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}
.search-modal.open { display: flex; }
.search-modal-inner {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px;
  width: 90%;
  max-width: 600px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.search-modal-inner p { color: var(--text-light); text-align: center; padding: 20px 0; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero { height: 480px; }
  .section-title { font-size: 26px; }
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  nav.main-nav { display: none; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0; background: #fff; padding: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
  nav.main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-num { font-size: 38px; }
  .video-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 15px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr; }
}