/* 开云体育官方平台 - kai-yun.onl */
:root {
  --primary: #1a5f2a;
  --primary-dark: #0f3d1a;
  --primary-light: #2d8a3e;
  --accent: #f5a623;
  --accent-hover: #e09000;
  --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;
}

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

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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); text-decoration: underline; }

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

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 16px;
  flex-wrap: wrap;
}

.logo-link { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-link:hover { text-decoration: none; }
.logo-img { width: 48px; height: 48px; border-radius: 8px; object-fit: cover; }
.logo-text { color: #fff; font-size: 1.25rem; font-weight: 700; letter-spacing: 0.5px; }
.logo-text span { display: block; font-size: 0.75rem; font-weight: 400; opacity: 0.85; }

.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a {
  color: rgba(255,255,255,0.9);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s;
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(255,255,255,0.15);
  color: #fff;
  text-decoration: none;
}

.header-actions { display: flex; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #1a1a2e; }
.btn-primary:hover { background: var(--accent-hover); color: #1a1a2e; }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-green { background: var(--primary-light); color: #fff; }
.btn-green:hover { background: var(--primary); color: #fff; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}
.hero h1 { font-size: 2.2rem; margin-bottom: 16px; line-height: 1.3; }
.hero p { font-size: 1.1rem; opacity: 0.92; max-width: 720px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Breadcrumb */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* Sections */
.section { padding: 56px 0; }
.section-alt { background: #fff; }
.section-title {
  font-size: 1.75rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
  text-align: center;
}
.section-desc {
  text-align: center;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 40px;
}
.section-subtitle {
  font-size: 1.25rem;
  color: var(--primary);
  margin: 32px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
}

/* Cards Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  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-img { width: 100%; height: 180px; object-fit: cover; }
.card-body { padding: 20px; }
.card-body h3 { font-size: 1.1rem; color: var(--primary-dark); margin-bottom: 10px; }
.card-body p { color: var(--text-muted); font-size: 0.925rem; }

/* Feature boxes */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.feature-box .icon { font-size: 2rem; margin-bottom: 12px; }
.feature-box h3 { font-size: 1rem; color: var(--primary-dark); margin-bottom: 8px; }
.feature-box p { font-size: 0.875rem; color: var(--text-muted); }

/* Content article */
.content-article { max-width: 860px; margin: 0 auto; }
.content-article h2 { font-size: 1.5rem; color: var(--primary-dark); margin: 36px 0 16px; }
.content-article h3 { font-size: 1.2rem; color: var(--primary); margin: 28px 0 12px; }
.content-article p { margin-bottom: 16px; color: var(--text); }
.content-article ul, .content-article ol { margin: 12px 0 16px 24px; color: var(--text); }
.content-article li { margin-bottom: 8px; }
.content-article img { border-radius: var(--radius); margin: 20px auto; box-shadow: var(--shadow); }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-q {
  padding: 16px 20px;
  font-weight: 600;
  color: var(--primary-dark);
  cursor: pointer;
  background: #fff;
}
.faq-a { padding: 0 20px 16px; color: var(--text-muted); font-size: 0.925rem; }

/* Partner logos */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.partner-grid img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: grayscale(20%);
  opacity: 0.85;
  transition: all 0.2s;
}
.partner-grid img:hover { filter: none; opacity: 1; }

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 48px 20px;
  text-align: center;
  border-radius: var(--radius);
  margin: 40px 0;
}
.cta-banner h2 { font-size: 1.5rem; margin-bottom: 12px; }
.cta-banner p { opacity: 0.9; margin-bottom: 24px; }

/* Form pages */
.form-page { padding: 48px 0 64px; }
.form-wrapper {
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
}
.form-wrapper h1 { font-size: 1.5rem; color: var(--primary-dark); text-align: center; margin-bottom: 8px; }
.form-wrapper .form-desc { text-align: center; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 28px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input {
  width: 100%;
  padding: 12px 14px;
  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(26,95,42,0.12); }
.form-submit { width: 100%; margin-top: 8px; }
.form-links { text-align: center; margin-top: 20px; font-size: 0.875rem; color: var(--text-muted); }
.form-links a { font-weight: 600; }

.seo-content {
  max-width: 860px;
  margin: 48px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.seo-content h2 { font-size: 1.3rem; color: var(--primary-dark); margin-bottom: 16px; }
.seo-content p { font-size: 0.925rem; color: var(--text-muted); margin-bottom: 12px; }

/* Legal pages */
.legal-page { padding: 40px 0 64px; }
.legal-content { max-width: 860px; margin: 0 auto; background: var(--bg-card); padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow); }
.legal-content h1 { font-size: 1.75rem; color: var(--primary-dark); margin-bottom: 8px; }
.legal-content .updated { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 28px; }
.legal-content h2 { font-size: 1.2rem; color: var(--primary); margin: 28px 0 12px; }
.legal-content p, .legal-content li { font-size: 0.925rem; margin-bottom: 12px; }
.legal-content ul { margin-left: 24px; }

/* Error pages */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.error-code { font-size: 6rem; font-weight: 800; color: var(--primary); line-height: 1; }
.error-title { font-size: 1.5rem; margin: 16px 0 8px; color: var(--primary-dark); }
.error-desc { color: var(--text-muted); margin-bottom: 28px; }

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 48px 20px 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 32px;
  max-width: var(--max-width);
  margin: 0 auto 32px;
}
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: rgba(255,255,255,0.75); font-size: 0.875rem; text-decoration: none; }
.footer-col a:hover { color: var(--accent); text-decoration: none; }
.footer-col p { font-size: 0.875rem; line-height: 1.7; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Internal links highlight */
.inline-links { margin: 24px 0; padding: 16px 20px; background: #eef7f0; border-radius: var(--radius); border-left: 4px solid var(--primary); }
.inline-links p { font-size: 0.9rem; margin: 0; }

/* 顶部广告栏 */
.ads-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.ads-bar .container { padding: 0; }
#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px 12px;
  background: transparent;
  min-height: 88px;
}
#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 76px;
  box-sizing: border-box;
}
#ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease;
  display: block;
  border: none;
  background: linear-gradient(135deg, #fff, #fff);
  cursor: pointer;
}
#ads a {
  display: inline-block;
  text-decoration: none;
  border-radius: 15px;
}
#ads img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(24, 24, 24, 0.18);
}
#ads figcaption,
#ads .caption {
  height: 15px;
  font-size: 11px;
  color: #666;
  text-align: center;
  max-width: 76px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}
#ads figure { margin: 0; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.6rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .main-nav { width: 100%; }
  .header-actions { width: 100%; }
  .header-actions .btn { flex: 1; }
  .section { padding: 40px 0; }
  .legal-content { padding: 24px; }
}