/* 开云体育官网 - 全局样式 */
:root {
  --primary: #1a5f2a;
  --primary-dark: #0d3d18;
  --primary-light: #2d8a3e;
  --accent: #f5c518;
  --accent-hover: #e6b800;
  --bg-dark: #0a1628;
  --bg-card: #112240;
  --bg-section: #0d1b2e;
  --text-primary: #ffffff;
  --text-secondary: #b8c5d6;
  --text-muted: #7a8ba3;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo img {
  height: 44px;
  width: auto;
  border-radius: 6px;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.logo-text span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--bg-dark);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45, 138, 62, 0.4);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--bg-dark);
}

.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(245, 197, 24, 0.4);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* Hero */
.hero {
  position: relative;
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 50%, var(--bg-dark) 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/足球.jpg") center/cover no-repeat;
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 20px;
  font-weight: 800;
}

.hero-text h1 em {
  color: var(--accent);
  font-style: normal;
}

.hero-text .lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

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

/* Section */
.section {
  padding: 72px 0;
}

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

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

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

.section-header .underline {
  width: 60px;
  height: 4px;
  background: var(--accent);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

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

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

.category-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.8));
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.category-card .overlay h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 197, 24, 0.3);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  align-items: center;
}

.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  transition: border-color var(--transition);
}

.partner-item:hover {
  border-color: rgba(245, 197, 24, 0.3);
}

.partner-item img {
  max-height: 130px;
  margin: 0 auto;
  object-fit: contain;
  border-radius: 20px;
}

.partner-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Promo Cards */
.promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .promo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.promo-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform var(--transition);
}

.promo-card:hover {
  transform: translateY(-4px);
}

.promo-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

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

.promo-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

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

/* Content Article */
.article-content {
  max-width: 900px;
  margin: 0 auto;
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 40px 0 16px;
  color: var(--accent);
  font-weight: 700;
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 28px 0 12px;
  font-weight: 600;
}

.article-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  text-align: justify;
}

.article-content ul,
.article-content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.article-content strong {
  color: var(--text-primary);
}

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

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
}

.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--accent);
  transition: transform var(--transition);
}

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

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

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

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

/* Providers */
.providers-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.provider-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
}

.provider-item img {
  max-height: 36px;
  object-fit: contain;
}

/* Page Header */
.page-header {
  padding: 48px 0 32px;
  background: linear-gradient(135deg, var(--bg-dark), var(--primary-dark));
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.page-header .breadcrumb {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

/* Auth Pages */
.auth-section {
  padding: 60px 0 80px;
}

.auth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.auth-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.auth-form-card h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.auth-form-card .subtitle {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-light);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.form-footer a {
  color: var(--text-muted);
}

.auth-info {
  padding-top: 20px;
}

.auth-info img {
  border-radius: var(--radius);
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.auth-info h3 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.auth-info p {
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.auth-benefits {
  margin-top: 24px;
}

.auth-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.auth-benefits li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* Legal Pages */
.legal-content {
  padding: 48px 0 80px;
}

.legal-content .article-content h2 {
  font-size: 1.4rem;
  margin-top: 32px;
}

.legal-content .article-content h2:first-child {
  margin-top: 0;
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

/* CTA */
.cta-section {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  text-align: center;
}

.cta-section h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

/* Footer */
.site-footer {
  background: #060e1a;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 48px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

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

.footer-col a {
  display: block;
  color: var(--text-muted);
  padding: 6px 0;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-disclaimer {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.6;
  padding: 0 0 24px;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  text-align: center;
  padding: 24px 16px;
}

.step-number {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--bg-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 16px;
}

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

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

/* Showcase Rows */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
}

.showcase-row:last-child {
  margin-bottom: 0;
}

.showcase-row.reverse .showcase-image {
  order: 2;
}

.showcase-row.reverse .showcase-text {
  order: 1;
}

.showcase-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.showcase-image img {
  width: 100%;
  display: block;
}

.showcase-text h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--accent);
}

.showcase-text p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  text-align: justify;
  font-size: 0.95rem;
}

.showcase-text .btn {
  margin-top: 8px;
}

.showcase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.showcase-tags span {
  background: rgba(245, 197, 24, 0.12);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(245, 197, 24, 0.2);
}

/* Dual Showcase */
.dual-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.dual-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition);
}

.dual-card:hover {
  transform: translateY(-4px);
}

.dual-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.dual-card .dual-body {
  padding: 24px;
}

.dual-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.dual-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

/* Activity Grid */
.activity-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.activity-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.activity-card:hover {
  transform: translateY(-3px);
  border-color: rgba(245, 197, 24, 0.25);
}

.activity-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 200px;
}

.activity-card .activity-body {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.activity-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.activity-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.gallery-item .gallery-caption {
  padding: 16px;
}

.gallery-item h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.gallery-item p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Stats Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat-item .stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.stat-item .stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 6px;
}

/* Wide Banner */
.wide-banner {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.wide-banner img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}

.wide-banner-caption {
  background: var(--bg-card);
  padding: 28px 32px;
}

.wide-banner-caption h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.wide-banner-caption p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .showcase-row {
    gap: 32px;
  }

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .providers-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    width: 100%;
    padding: 12px 16px;
  }

  .header-actions .btn-outline {
    display: none;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-text h1 {
    font-size: 1.8rem;
  }

  .features-grid,
  .promo-grid {
    grid-template-columns: 1fr;
  }

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

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-row {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 48px;
  }

  .showcase-row.reverse .showcase-image,
  .showcase-row.reverse .showcase-text {
    order: unset;
  }

  .dual-showcase {
    grid-template-columns: 1fr;
  }

  .activity-card {
    grid-template-columns: 1fr;
  }

  .activity-card img {
    max-height: 220px;
  }

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

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 48px 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .category-grid {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .providers-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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