/* 杏吧原创视频 - 全局样式 */
:root {
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --accent: #ec4899;
  --accent-light: #f472b6;
  --bg-dark: #0f0a1a;
  --bg-card: #1a1225;
  --bg-section: #120d1c;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #2d1f42;
  --gradient: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --shadow: 0 4px 24px rgba(124, 58, 237, 0.15);
  --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);
  line-height: 1.8;
  min-height: 100vh;
}

a {
  color: var(--accent-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(15, 10, 26, 0.95);
  backdrop-filter: blur(12px);
  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: 14px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-link img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.logo-link:hover {
  color: var(--text);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 28px;
}

.main-nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-light);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* Hero */
.hero {
  background: var(--bg-section);
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 20px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.badge {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.3);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--accent-light);
  margin-left: 12px;
}

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

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

.hero-image img {
  width: 100%;
}

/* Sections */
.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;
  color: var(--text);
}

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

.section-header .anchor-link {
  font-size: 0.875rem;
}

/* Feature Grid */
.feature-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: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

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

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--accent-light);
}

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

/* Image Showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

.showcase-item img {
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  object-position: top;
}

.showcase-caption {
  padding: 20px;
}

.showcase-caption h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.showcase-caption p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Content blocks */
.content-block {
  max-width: 860px;
  margin: 0 auto;
}

.content-block h2 {
  font-size: 1.75rem;
  margin: 40px 0 16px;
  color: var(--accent-light);
}

.content-block h3 {
  font-size: 1.25rem;
  margin: 28px 0 12px;
  color: var(--text);
}

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

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

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

.content-block a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Image row */
.image-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}

.image-row img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  object-position: top;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--text);
}

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

/* CTA */
.cta-section {
  text-align: center;
  padding: 64px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-section h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.cta-section p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

.cta-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.cta-links a {
  padding: 10px 24px;
  background: var(--bg-section);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.cta-links a:hover {
  border-color: var(--primary);
  color: var(--accent-light);
}

/* 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: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  width: 48px;
  border-radius: 10px;
  margin-bottom: 12px;
}

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

.footer-col h4 {
  font-size: 0.95rem;
  margin-bottom: 16px;
  color: var(--text);
}

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

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

.footer-col a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

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

/* Page header (subpages) */
.page-header {
  background: var(--bg-section);
  padding: 48px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

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

.page-header p {
  color: var(--text-muted);
}

.page-content {
  padding: 48px 0 72px;
}

.page-content .content-block {
  max-width: 860px;
}

/* Error pages */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-page p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

.breadcrumb {
  padding: 16px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

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

.breadcrumb span {
  margin: 0 8px;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-badges {
    justify-content: center;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

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

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

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

@media (max-width: 768px) {
  .menu-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 20px;
  }

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

  .main-nav ul {
    flex-direction: column;
    gap: 16px;
  }

  .header-inner {
    position: relative;
  }

  .feature-grid,
  .showcase-grid,
  .image-row {
    grid-template-columns: 1fr;
  }

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

  .btn-outline {
    margin-left: 0;
    margin-top: 12px;
  }

  .section {
    padding: 48px 0;
  }

  .hero {
    padding: 40px 0 56px;
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }
}