/* 开云体育 kaiyun.love - 主样式表 */
:root {
  --primary: #1a7f4b;
  --primary-dark: #0f5c35;
  --primary-light: #2ecc71;
  --accent: #f5a623;
  --bg-dark: #0d1117;
  --bg-card: #161b22;
  --bg-section: #1c2128;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --border: #30363d;
  --gradient: linear-gradient(135deg, #1a7f4b 0%, #0f5c35 100%);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --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: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
}

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

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

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

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

/* Header */
.site-header {
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

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

.logo-link img {
  height: 48px;
  width: auto;
  border-radius: 6px;
}

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

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

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-align: center;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26, 127, 75, 0.4);
  color: #fff;
}

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

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

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

/* Hero */
.hero {
  background: linear-gradient(180deg, rgba(26, 127, 75, 0.15) 0%, var(--bg-dark) 100%);
  padding: 60px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
  background: linear-gradient(90deg, #fff, var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-image {
  max-width: 100%;
  margin: 0 auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

/* Sections */
.section {
  padding: 60px 0;
}

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

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.section-desc {
  text-align: center;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 40px;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

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

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

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

.content-article h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  color: var(--primary-light);
}

.content-article h3 {
  font-size: 1.2rem;
  margin: 28px 0 12px;
  color: var(--text-primary);
}

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

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

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

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

/* Partner Grid */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  transition: border-color 0.2s;
}

.partner-card:hover {
  border-color: var(--primary);
}

.partner-card img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  margin-bottom: 10px;
}

.partner-card span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

.category-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

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

.category-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
}

.category-overlay h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.category-overlay p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Promo Grid */
.promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

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

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

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

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

.faq-question {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-section);
}

.faq-answer {
  padding: 0 24px 18px;
  color: var(--text-secondary);
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-item.open .faq-question::after {
  content: "−";
}

.faq-question::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--primary-light);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  position: relative;
}

.step-card::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gradient);
  border-radius: 50%;
  font-weight: 700;
  margin: 0 auto 16px;
}

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

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

/* Form Pages */
.page-hero {
  background: var(--gradient);
  padding: 48px 0;
  text-align: center;
}

.page-hero h1 {
  font-size: 2rem;
  margin-bottom: 12px;
}

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

.form-section {
  padding: 48px 0 80px;
}

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

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

.form-card h2 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  text-align: center;
}

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

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

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

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

.form-submit {
  width: 100%;
  margin-top: 8px;
}

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

.form-preview {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.form-preview img {
  width: 100%;
}

.form-content h2 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  color: var(--primary-light);
}

.form-content h3 {
  font-size: 1.1rem;
  margin: 24px 0 12px;
}

.form-content p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  text-align: justify;
}

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

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

.legal-meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.legal-page h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
  color: var(--primary-light);
}

.legal-page p,
.legal-page li {
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.legal-page ul,
.legal-page ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

/* Breadcrumb */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

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

.breadcrumb span {
  margin: 0 8px;
}

/* Footer */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand img {
  height: 40px;
  margin-bottom: 12px;
  border-radius: 6px;
}

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

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

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

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-bottom p {
  margin-bottom: 8px;
}

/* CTA Banner */
.cta-banner {
  background: var(--gradient);
  padding: 48px;
  border-radius: var(--radius);
  text-align: center;
  margin: 40px 0;
}

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

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

/* Media Block - 图文混排 */
.media-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

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

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

.media-block img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  width: 100%;
}

.media-text h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
  color: var(--primary-light);
}

.media-text p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  text-align: justify;
}

.media-text ul {
  margin: 12px 0 0 20px;
  color: var(--text-secondary);
}

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

/* Promo Detail Cards */
.promo-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.promo-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.promo-detail-card:hover {
  border-color: var(--primary);
}

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

.promo-detail-body {
  padding: 24px;
}

.promo-detail-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.promo-detail-body p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.promo-tag {
  display: inline-block;
  background: rgba(26, 127, 75, 0.2);
  color: var(--primary-light);
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

/* Supplier Grid */
.supplier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.supplier-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.supplier-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.supplier-card img {
  width: 100%;
  height: 48px;
  object-fit: contain;
  margin-bottom: 8px;
}

.supplier-card span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Data Table */
.data-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

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

.data-table th {
  background: var(--bg-card);
  color: var(--primary-light);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: rgba(26, 127, 75, 0.05);
}

/* Category Detail */
.category-detail {
  margin-top: 48px;
}

.category-detail-item {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.category-detail-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .media-block {
    grid-template-columns: 1fr;
  }

  .media-block.reverse {
    direction: ltr;
  }
  .form-layout {
    grid-template-columns: 1fr;
  }

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

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

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 16px;
  }

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

  .main-nav ul {
    flex-direction: column;
  }

  .header-actions {
    display: none;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
    gap: 12px;
  }

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

  .hero {
    padding: 40px 0 60px;
  }
}