* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
}
html {
  scroll-behavior: smooth;
}
body {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 40%, #334155 100%);
  color: #e2e8f0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
a {
  color: #38bdf8;
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: #7dd3fc;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: #cbd5e1;
  padding: 8px 4px;
  position: relative;
  letter-spacing: 0.5px;
}
.nav-links a:hover {
  color: #38bdf8;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  transition: width 0.3s ease;
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-brand {
  font-size: 20px;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: 1px;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* Hero */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent, rgba(15, 23, 42, 0.6));
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  background: linear-gradient(135deg, #f8fafc, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero p {
  font-size: 18px;
  color: #94a3b8;
  max-width: 700px;
  margin: 0 auto 40px;
}
.hero-img {
  max-width: 800px;
  margin: 40px auto 0;
}
.hero-img img {
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid rgba(56, 189, 248, 0.5);
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
}
.btn:hover {
  background: rgba(56, 189, 248, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.3);
}
.btn-primary {
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  color: #0f172a;
  border: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #7dd3fc, #a5b4fc);
  color: #0f172a;
  box-shadow: 0 8px 30px rgba(129, 140, 248, 0.4);
}
/* 通用偏移 */
section {
  scroll-margin-top: 80px;
}
/* 卡片系统 */
.card {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 32px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #38bdf8, transparent);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(56, 189, 248, 0.15);
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #f8fafc, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
}
.section-subtitle {
  text-align: center;
  color: #64748b;
  font-size: 15px;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
/* GEO */
.geo-wrapper {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.6), rgba(15, 23, 42, 0.8));
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 20px;
  padding: 40px;
  margin: 40px 0;
}
.geo-wrapper p {
  color: #cbd5e1;
  font-size: 16px;
  line-height: 1.8;
  text-align: justify;
}
/* 数据统计 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 32px 16px;
}
.stat-num {
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  color: #94a3b8;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
/* 优势 */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.adv-card .card-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.adv-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #f1f5f9;
}
.adv-card p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
}
/* 品牌故事 */
.story-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.story-img img {
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.story-text p {
  color: #cbd5e1;
  margin-bottom: 16px;
  line-height: 1.8;
  font-size: 15px;
}
/* 时间线 */
.timeline {
  position: relative;
  padding: 40px 0;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, #38bdf8, transparent);
  transform: translateX(-50%);
}
.timeline-item {
  position: relative;
  width: 50%;
  padding: 20px 40px;
}
.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}
.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}
.timeline-dot {
  position: absolute;
  top: 30px;
  right: -6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
}
.timeline-item:nth-child(even) .timeline-dot {
  left: -6px;
  right: auto;
}
.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: #38bdf8;
  margin-bottom: 6px;
}
.timeline-title {
  font-size: 16px;
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.timeline-text {
  color: #94a3b8;
  font-size: 14px;
}
/* 覆盖 */
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.coverage-item {
  text-align: center;
  padding: 24px;
}
.coverage-item img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin: 0 auto 16px;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.3));
}
.coverage-item span {
  display: block;
  color: #f1f5f9;
  font-weight: 500;
}
/* 焦点赛事 */
.event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}
.event-card {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s;
}
.event-card:hover {
  transform: scale(1.02);
}
.event-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.event-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.event-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(15, 23, 42, 0.85);
  color: #38bdf8;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 1px;
}
.event-info {
  padding: 24px;
}
.event-info h3 {
  font-size: 18px;
  color: #f1f5f9;
  margin-bottom: 12px;
}
.event-info p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.6;
}
/* 口碑 */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.testi-card {
  text-align: center;
}
.testi-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 2px solid #38bdf8;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}
.testi-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.testi-card p {
  color: #cbd5e1;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}
.testi-name {
  font-size: 15px;
  font-weight: 600;
  color: #f1f5f9;
}
.testi-role {
  color: #64748b;
  font-size: 13px;
}
/* 深度内容 */
.deep-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.deep-item {
  padding: 24px;
}
.deep-item h3 {
  font-size: 18px;
  color: #f1f5f9;
  margin-bottom: 12px;
}
.deep-item p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
}
/* 合作伙伴 */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}
.partner-item {
  padding: 16px 24px;
  background: rgba(148, 163, 184, 0.05);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 12px;
  font-size: 14px;
  color: #94a3b8;
  font-weight: 500;
  transition: all 0.3s;
}
.partner-item:hover {
  border-color: #38bdf8;
  color: #38bdf8;
}
/* 新闻 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
}
.news-card {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(56, 189, 248, 0.12);
}
.news-img {
  height: 200px;
  overflow: hidden;
}
.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-img img {
  transform: scale(1.05);
}
.news-body {
  padding: 24px;
}
.news-tag {
  display: inline-block;
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.news-body h3 {
  font-size: 18px;
  color: #f1f5f9;
  line-height: 1.4;
  margin-bottom: 8px;
}
.news-date {
  display: block;
  font-size: 13px;
  color: #64748b;
  margin-bottom: 12px;
}
.news-body p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
}
/* FAQ */
.faq-grid {
  display: grid;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.3s;
}
.faq-item:hover {
  border-color: rgba(56, 189, 248, 0.3);
}
.faq-item h3 {
  font-size: 16px;
  color: #f1f5f9;
  font-weight: 600;
  margin-bottom: 12px;
  position: relative;
  padding-left: 28px;
}
.faq-item h3::before {
  content: "Q";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background: rgba(56, 189, 248, 0.2);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-item p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
  padding-left: 28px;
}
/* 下载 */
.download-section {
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.08), rgba(129, 140, 248, 0.08));
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
}
.download-section h3 {
  font-size: 28px;
  color: #f1f5f9;
  margin-bottom: 16px;
}
.download-section p {
  color: #94a3b8;
  font-size: 15px;
  margin-bottom: 32px;
}
.download-img {
  max-width: 240px;
  margin: 0 auto 32px;
}
.download-img img {
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
/* CTA */
.cta-section {
  text-align: center;
  padding: 80px 24px;
  background: radial-gradient(ellipse at 50% 50%, rgba(56, 189, 248, 0.15), transparent 70%);
}
.cta-section h2 {
  font-size: 32px;
  color: #f1f5f9;
  margin-bottom: 16px;
}
.cta-section p {
  color: #94a3b8;
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto 32px;
}
/* 页脚 */
.footer {
  background: rgba(2, 6, 23, 0.9);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding: 60px 0 24px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 {
  color: #f1f5f9;
  font-size: 16px;
  margin-bottom: 16px;
}
.footer ul {
  list-style: none;
}
.footer ul li {
  margin-bottom: 12px;
}
.footer ul li a {
  color: #94a3b8;
  font-size: 14px;
}
.footer ul li a:hover {
  color: #38bdf8;
}
.footer-contact {
  color: #94a3b8;
  font-size: 14px;
  line-height: 2;
}
.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.08);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.footer-bottom p {
  color: #64748b;
  font-size: 13px;
}
.footer-bottom .beian a {
  color: #64748b;
  font-size: 13px;
  margin: 0 8px;
}
/* 响应式 */
@media (max-width: 768px) {
  .nav-links {
    gap: 16px;
    justify-content: center;
    padding: 12px;
  }
  .nav-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 16px;
  }
  .hero {
    padding: 120px 24px 60px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .story-section {
    grid-template-columns: 1fr;
  }
  .timeline::before {
    left: 20px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 0;
    text-align: left !important;
  }
  .timeline-item:nth-child(odd) {
    left: 0;
  }
  .timeline-item:nth-child(even) {
    left: 0;
  }
  .timeline-dot {
    right: auto !important;
    left: 16px !important;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}