/* 开云体育官网 - 全局样式 */
:root {
  --primary: #1a5f2a;
  --primary-dark: #0f3d1a;
  --primary-light: #2d8a42;
  --accent: #f5a623;
  --accent-hover: #e09510;
  --bg: #f8faf9;
  --bg-card: #ffffff;
  --text: #1a1a2e;
  --text-muted: #5a6270;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --max-width: 1200px;
  --header-h: 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;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-light);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.logo-link img {
  height: 48px;
  width: auto;
  border-radius: 10px;
}

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

.nav-main {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

.nav-main a:hover,
.nav-main a.active {
  background: rgba(26, 95, 42, 0.08);
  color: var(--primary);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
}

.btn-accent {
  background: var(--accent);
  color: #1a1a2e;
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: #1a1a2e;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: #fff;
  padding: 64px 24px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.3;
  margin-bottom: 20px;
  font-weight: 800;
}

.hero-desc {
  font-size: 1.1rem;
  opacity: 0.92;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions .btn {
  min-width: 140px;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Main content */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.section {
  margin-bottom: 56px;
}

.section-header {
  text-align: center;
  margin-bottom: 36px;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* Cards grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.card h3 {
  font-size: 1.15rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

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

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
}

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

/* Feature blocks */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.feature-text h3 {
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.feature-text p {
  color: var(--text-muted);
  margin-bottom: 12px;
}

.feature-text h2 {
  font-size: 1.5rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.feature-text ul {
  margin: 0 0 16px 20px;
  color: var(--text-muted);
}

.feature-text li {
  margin-bottom: 8px;
}

/* Venue showcase */
.venue-showcase {
  margin-bottom: 56px;
}

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

/* Activity & promo cards */
.activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.activity-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.activity-card:hover {
  transform: translateY(-3px);
}

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

.activity-card-body {
  padding: 22px;
}

.activity-card-body h3 {
  font-size: 1.1rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.activity-card-body p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.activity-tag {
  display: inline-block;
  background: rgba(26, 95, 42, 0.1);
  color: var(--primary);
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 20px;
  margin-right: 6px;
}

.promo-table-wrap {
  overflow-x: auto;
  margin: 20px 0;
}

.promo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

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

.promo-table th {
  background: rgba(26, 95, 42, 0.08);
  color: var(--primary-dark);
  font-weight: 600;
}

.promo-table tr:nth-child(even) {
  background: var(--bg);
}

.highlight-num {
  color: #c0392b;
  font-weight: 700;
}

.sports-platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.platform-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.platform-card h3 {
  color: var(--primary-dark);
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.platform-card .platform-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.platform-stat {
  background: var(--bg);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
}

.platform-stat strong {
  color: var(--primary);
  display: block;
  font-size: 1.1rem;
}

.partner-intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.partner-intro-item {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.partner-intro-item h3 {
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.partner-intro-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  align-items: stretch;
}

.partner-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  min-height: 160px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.partner-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.partner-item img {
  max-width: 100%;
  width: auto;
  object-fit: contain;
}

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

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

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--primary-dark);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--primary);
  transition: transform 0.2s;
}

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

.faq-answer {
  padding: 0 24px 18px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* Article / long content */
.article-content {
  max-width: 860px;
  margin: 0 auto;
}

.article-content h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--primary-dark);
  margin-bottom: 20px;
  line-height: 1.35;
}

.article-content h2 {
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
}

.article-content h3 {
  font-size: 1.15rem;
  color: var(--text);
  margin: 24px 0 12px;
}

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

.article-content ul,
.article-content ol {
  margin: 0 0 16px 24px;
  color: var(--text-muted);
}

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

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

/* Page hero (sub pages) */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 48px 24px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 12px;
}

.page-hero p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* Form pages */
.form-section {
  max-width: 520px;
  margin: 0 auto;
}

.form-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 40px;
}

.form-card h2 {
  text-align: center;
  color: var(--primary-dark);
  margin-bottom: 24px;
  font-size: 1.35rem;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 42, 0.15);
}

.form-card .btn {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  margin-top: 8px;
}

.form-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-preview {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}

.seo-content {
  max-width: 800px;
  margin: 0 auto;
}

.seo-content h2 {
  font-size: 1.3rem;
  color: var(--primary-dark);
  margin: 32px 0 14px;
}

.seo-content p {
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* CTA banner */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  margin: 48px 0;
}

.cta-banner h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 24px;
}

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 24px 24px;
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.footer-brand img {
  height: 48px;
  margin-bottom: 16px;
  border-radius: 10px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  opacity: 0.8;
}

.footer-links h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: #fff;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Breadcrumb */
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

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

/* Responsive */
@media (max-width: 900px) {
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .partner-item {
    min-height: 130px;
    padding: 20px 16px;
  }

  .partner-item img {
    max-height: 90px;
  }

  .hero-inner,
  .feature-block {
    grid-template-columns: 1fr;
  }

  .feature-block.reverse {
    direction: ltr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .menu-toggle {
    display: block;
  }

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

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

  .header-actions {
    display: none;
  }

  .header-inner {
    position: relative;
  }
}

@media (max-width: 600px) {
  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .partner-item {
    min-height: 110px;
    padding: 16px 12px;
  }

  .partner-item img {
    max-height: 140px;
  }

  .hero {
    padding: 40px 16px;
  }

  .main-content {
    padding: 32px 16px;
  }

  .form-card {
    padding: 24px;
  }
}