/* ========================================
   蜜桃视频官网 - 全局样式
   ======================================== */

:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #c8956c;
  --color-accent-light: #e8b896;
  --color-text: #2c2c2c;
  --color-text-light: #666;
  --color-text-muted: #999;
  --color-white: #ffffff;
  --color-bg: #fafafa;
  --color-bg-alt: #f5f0eb;
  --color-border: #e8e0d8;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --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: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Header ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(26, 26, 46, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200, 149, 108, 0.15);
  transition: background var(--transition);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 2px;
}

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

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

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  padding: 8px 18px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-accent);
  background: rgba(200, 149, 108, 0.1);
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-accent), #b07d4f) !important;
  color: var(--color-white) !important;
  padding: 10px 24px !important;
  border-radius: 6px !important;
  font-weight: 500;
}

.nav-cta:hover {
  background: linear-gradient(135deg, #b07d4f, var(--color-accent)) !important;
  color: var(--color-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(200, 149, 108, 0.4);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: var(--transition);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, #0f3460 100%);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(200, 149, 108, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(200, 149, 108, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-white), transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(200, 149, 108, 0.15);
  border: 1px solid rgba(200, 149, 108, 0.3);
  border-radius: 20px;
  color: var(--color-accent-light);
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

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

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #b07d4f);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(200, 149, 108, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 149, 108, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(200, 149, 108, 0.08);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  font-weight: 700;
}

.stat-item span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1px;
}

/* ---- Section Common ---- */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
  font-weight: 500;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
}

/* ---- Features ---- */
.features {
  background: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--color-white);
  padding: 40px 32px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(200, 149, 108, 0.1), rgba(200, 149, 108, 0.05));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---- About Preview ---- */
.about-preview {
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.about-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 4rem;
}

.about-content h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.about-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.highlight-item::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
}

/* ---- News Preview ---- */
.news-preview {
  background: var(--color-bg-alt);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.news-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

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

.news-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 2.5rem;
}

.news-card-body {
  padding: 28px;
}

.news-date {
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.news-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.news-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  padding: 80px 0;
  text-align: center;
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* ---- Page Header (inner pages) ---- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  padding: 160px 0 80px;
  text-align: center;
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

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

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

/* ---- About Page ---- */
.about-section {
  padding: 80px 0;
}

.about-section:nth-child(even) {
  background: var(--color-bg);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -36px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-item h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.timeline-item .year {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 8px;
}

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

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.value-card {
  text-align: center;
  padding: 32px 20px;
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.value-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

/* ---- Product Page ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 48px 40px;
  transition: all var(--transition);
}

.product-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.product-card .product-icon {
  font-size: 3rem;
  margin-bottom: 24px;
}

.product-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.product-card p {
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.7;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-features li {
  font-size: 0.9rem;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
}

.product-features li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ---- News Page ---- */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.news-list-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 32px;
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.news-list-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.news-list-date {
  text-align: center;
  padding: 16px;
  background: var(--color-bg-alt);
  border-radius: 8px;
  align-self: start;
}

.news-list-date .day {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.news-list-date .month {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.news-list-content h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.news-list-content p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

.news-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(200, 149, 108, 0.1);
  color: var(--color-accent);
  font-size: 0.75rem;
  border-radius: 4px;
  margin-bottom: 10px;
}

/* ---- Download Page ---- */
.download-section {
  text-align: center;
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 48px auto 0;
}

.download-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 48px 32px;
  transition: all var(--transition);
}

.download-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.download-card .platform-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.download-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.download-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.qr-placeholder {
  width: 140px;
  height: 140px;
  margin: 0 auto 24px;
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* ---- Contact Page ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: rgba(200, 149, 108, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.contact-info-item p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--color-bg);
  padding: 40px;
  border-radius: 16px;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background: var(--color-white);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-text {
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .features-grid,
  .news-grid,
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid rgba(200, 149, 108, 0.15);
  }

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

  .menu-toggle {
    display: block;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .features-grid,
  .news-grid,
  .about-grid,
  .product-grid,
  .contact-grid,
  .download-cards,
  .values-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .news-list-item {
    grid-template-columns: 1fr;
  }

  .hero-content {
    padding: 48px 0;
  }

  section {
    padding: 64px 0;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}