/* ===== 香蕉影视官网主样式 ===== */
/* 外部CSS文件 - 香蕉影视高清视频平台 */

/* ===== CSS变量 ===== */
:root {
  --primary: #1a1a2e;
  --secondary: #16213e;
  --accent: #ffc107;
  --accent-dark: #e6a800;
  --text: #2c2c2c;
  --text-light: #666;
  --text-white: #fff;
  --bg: #fff;
  --bg-light: #f8f9fa;
  --bg-dark: #1a1a2e;
  --border: #e8e8e8;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.16);
  --transition: 0.25s ease;
  --max-width: 1200px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,193,7,0.4);
  color: var(--primary);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-secondary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--secondary);
  transform: translateY(-2px);
  color: #fff;
}

/* ===== 导航头部 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--primary);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 0;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1px;
  white-space: nowrap;
}
.main-nav { flex: 1; }
.main-nav ul {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.main-nav a:hover {
  color: var(--accent);
  background: rgba(255,193,7,0.1);
}
.nav-toggle {
  display: none;
  color: #fff;
  font-size: 24px;
  padding: 4px 8px;
}

/* ===== 搜索框 ===== */
.search-bar-wrap {
  padding: 8px 0 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.search-form {
  display: flex;
  max-width: 600px;
  gap: 0;
}
.search-input {
  flex: 1;
  padding: 10px 18px;
  border: 2px solid rgba(255,193,7,0.4);
  border-right: none;
  border-radius: 50px 0 0 50px;
  font-size: 14px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  outline: none;
  transition: border-color var(--transition);
}
.search-input::placeholder { color: rgba(255,255,255,0.4); }
.search-input:focus { border-color: var(--accent); }
.search-btn {
  padding: 10px 20px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 0 50px 50px 0;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition);
}
.search-btn:hover { background: var(--accent-dark); }
.search-tip {
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  padding: 6px 10px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
}

/* ===== Section通用 ===== */
.section { padding: 72px 0; }
.bg-light { background: var(--bg-light); }
.bg-dark { background: var(--bg-dark); }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header.light .section-title,
.section-header.light .section-subtitle {
  color: #fff;
}
.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}
.section-more {
  text-align: center;
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Hero首屏 ===== */
.hero-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.88) 0%, rgba(26,26,46,0.55) 60%, rgba(26,26,46,0.2) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 60px 20px;
}
.hero-text { max-width: 600px; }
.hero-title {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.hero-subtitle {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  line-height: 1.6;
}
.hero-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.stat-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
}
.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-actions .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.hero-actions .btn-outline:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

/* ===== 品牌故事 ===== */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.story-img-wrap { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.story-img { width: 100%; height: 360px; object-fit: cover; transition: transform 0.4s; }
.story-img-wrap:hover .story-img { transform: scale(1.03); }
.story-text h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.story-text p { color: var(--text-light); margin-bottom: 14px; line-height: 1.8; }

/* ===== 功能特性 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.feature-img { width: 100%; height: 200px; object-fit: cover; }
.feature-body { padding: 20px; }
.feature-title { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.feature-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.feature-link { color: var(--accent-dark); font-weight: 600; font-size: 14px; }
.feature-link:hover { color: var(--primary); }

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.video-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.video-thumb-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #111;
}
.video-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.video-card:hover .video-thumb { transform: scale(1.05); }
.video-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background var(--transition);
}
.video-card:hover .video-play-overlay { background: rgba(0,0,0,0.35); }
.play-btn {
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition);
}
.video-card:hover .play-btn { opacity: 1; transform: scale(1); }
.video-category {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--accent);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-score {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255,193,7,0.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-info { padding: 14px 16px; }
.video-title { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 6px; line-height: 1.4; }
.video-desc { font-size: 13px; color: var(--text-light); margin-bottom: 10px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 12px; flex-wrap: wrap; }
.meta-item { font-size: 12px; color: var(--text-light); }

/* ===== 视频弹窗 ===== */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
}
.modal-content {
  position: relative;
  z-index: 1;
  background: #111;
  border-radius: var(--radius);
  width: 90%;
  max-width: 800px;
  overflow: hidden;
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  color: #fff;
  font-size: 20px;
  background: rgba(0,0,0,0.5);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.modal-close:hover { background: rgba(255,193,7,0.8); color: #111; }
.mock-player { background: #000; }
.mock-player-screen {
  height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a0a1a, #1a1a2e);
}
.mock-player-icon { font-size: 64px; color: var(--accent); margin-bottom: 12px; }
.mock-player-text { color: rgba(255,255,255,0.8); font-size: 16px; }
.mock-player-domain { color: rgba(255,193,7,0.6); font-size: 13px; margin-top: 6px; }
.mock-player-controls { padding: 12px 16px; background: #111; }
.mock-progress { height: 4px; background: rgba(255,255,255,0.2); border-radius: 2px; margin-bottom: 10px; cursor: pointer; }
.mock-progress-bar { height: 100%; background: var(--accent); border-radius: 2px; width: 0%; transition: width 0.2s; }
.mock-btns { display: flex; align-items: center; gap: 16px; color: rgba(255,255,255,0.8); font-size: 14px; }
.mock-play-btn { color: var(--accent); font-size: 18px; }
.mock-time { margin-left: auto; font-size: 12px; color: rgba(255,255,255,0.6); }
.mock-hd { background: var(--accent); color: var(--primary); font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 3px; }
.modal-title { color: #fff; font-size: 15px; padding: 12px 16px; background: #1a1a2e; }

/* ===== 场景 ===== */
.scenes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.scene-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}
.scene-card:hover { background: rgba(255,193,7,0.1); border-color: var(--accent); transform: translateY(-4px); }
.scene-icon { font-size: 40px; margin-bottom: 14px; }
.scene-card h3 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.scene-card p { color: rgba(255,255,255,0.65); font-size: 13px; line-height: 1.7; }

/* ===== 用户评价 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.reviewer-avatar {
  width: 40px; height: 40px;
  background: var(--primary);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}
.reviewer-info { flex: 1; }
.reviewer-name { display: block; font-size: 14px; font-weight: 700; color: var(--primary); }
.reviewer-loc { font-size: 12px; color: var(--text-light); }
.review-rating { color: var(--accent); font-size: 13px; flex-shrink: 0; }
.review-content { font-size: 13px; color: var(--text-light); line-height: 1.7; margin-bottom: 10px; }
.review-date { font-size: 11px; color: #bbb; }

/* ===== 媒体推荐 ===== */
.media-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.media-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 4px solid var(--accent);
}
.media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.media-icon { font-size: 36px; margin-bottom: 12px; }
.media-card h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.media-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* ===== 使用指南 ===== */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}
.guide-step {
  text-align: center;
  padding: 32px 24px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.step-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.8;
}
.guide-step h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.guide-step p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  text-align: left;
  gap: 12px;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--accent-dark); }
.faq-icon { font-size: 20px; font-weight: 400; flex-shrink: 0; color: var(--accent-dark); }
.faq-answer { padding: 0 0 16px; }
.faq-answer p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* ===== 联系方式 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.contact-icon { font-size: 36px; margin-bottom: 12px; }
.contact-card h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.contact-card p { font-size: 14px; color: var(--text); }
.contact-note { font-size: 12px; color: var(--text-light); margin-top: 6px; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo-link { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
.footer-brand-name { font-size: 20px; font-weight: 800; color: var(--accent); }
.footer-desc { font-size: 13px; line-height: 1.7; margin-bottom: 10px; }
.footer-domain { font-size: 13px; color: rgba(255,255,255,0.5); }
.footer-domain strong { color: var(--accent); }
.footer-links h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.footer-links ul { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
}
.footer-copyright { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 6px; }
.footer-copyright strong { color: var(--accent); }
.footer-update { font-size: 12px; color: rgba(255,255,255,0.35); margin-bottom: 10px; }
.footer-tags { font-size: 12px; color: rgba(255,255,255,0.4); }
.footer-tags a { color: rgba(255,255,255,0.4); margin: 0 4px; }
.footer-tags a:hover { color: var(--accent); }

/* ===== 内页通用 ===== */
.inner-main { min-height: 60vh; }
.breadcrumb {
  background: var(--bg-light);
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
}
.breadcrumb a { color: var(--accent-dark); }
.breadcrumb a:hover { text-decoration: underline; }
.inner-content { padding: 48px 20px; }
.inner-title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.3;
}
.inner-lead {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 36px;
  max-width: 700px;
  line-height: 1.8;
}
.inner-banner-img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}
.inner-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
}
.inner-content p { color: var(--text-light); line-height: 1.8; margin-bottom: 14px; }

/* ===== 功能详情页 ===== */
.feature-detail-grid { display: flex; flex-direction: column; gap: 48px; }
.feature-detail-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.feature-detail-card.reverse { direction: rtl; }
.feature-detail-card.reverse > * { direction: ltr; }
.fdc-img { width: 100%; height: 280px; object-fit: cover; }
.fdc-body { padding: 32px; }
.fdc-body h2 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 14px; }
.fdc-body p { color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.feature-list { padding-left: 0; }
.feature-list li { font-size: 14px; color: var(--text-light); padding: 6px 0; padding-left: 20px; position: relative; }
.feature-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent-dark); font-weight: 700; }

/* ===== 教程页 ===== */
.tutorial-steps { margin: 24px 0 40px; }
.tutorial-step {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.tstep-num {
  background: var(--accent);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  height: fit-content;
  flex-shrink: 0;
  margin-top: 2px;
}
.tstep-content h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.tstep-content p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.video-tutorial-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 24px 0 40px; }
.shortcut-table-wrap { overflow-x: auto; margin: 16px 0 40px; }
.shortcut-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.shortcut-table th { background: var(--primary); color: #fff; padding: 12px 16px; text-align: left; }
.shortcut-table td { padding: 10px 16px; border-bottom: 1px solid var(--border); color: var(--text-light); }
.shortcut-table tr:hover td { background: var(--bg-light); }

/* ===== 下载页 ===== */
.download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 32px 0; }
.download-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 4px solid var(--accent);
}
.download-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.dl-icon { font-size: 40px; margin-bottom: 12px; }
.download-card h2 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.download-card p { font-size: 13px; color: var(--text-light); margin-bottom: 14px; line-height: 1.6; }
.dl-info { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.dl-info span { font-size: 12px; color: var(--text-light); }
.dl-btn { width: 100%; justify-content: center; }
.dl-tip-box {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 16px 0;
  font-size: 14px;
  color: var(--text-light);
}

/* ===== 帮助页 ===== */
.help-categories { display: flex; flex-direction: column; gap: 40px; margin-bottom: 40px; }
.help-cat { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.help-cat-icon { font-size: 32px; margin-bottom: 12px; }
.help-cat h2 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 20px; }
.help-list { display: flex; flex-direction: column; gap: 20px; }
.help-list li { padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.help-list li:last-child { border-bottom: none; padding-bottom: 0; }
.help-list h3 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.help-list p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.help-contact { background: var(--bg-light); border-radius: var(--radius); padding: 32px; text-align: center; margin-top: 40px; }
.help-contact h2 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.help-contact p { color: var(--text-light); margin-bottom: 20px; }
.help-contact .btn { margin: 0 8px; }

/* ===== 实用技巧页 ===== */
.tips-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.tip-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-left: 4px solid var(--accent);
}
.tip-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.tip-icon { font-size: 32px; margin-bottom: 10px; }
.tip-tag { display: inline-block; background: var(--accent); color: var(--primary); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 4px; margin-bottom: 10px; }
.tip-title { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.tip-content { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* ===== 更新日志页 ===== */
.changelog-list { display: flex; flex-direction: column; gap: 32px; }
.changelog-item { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.cl-version { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.cl-ver-num { font-size: 20px; font-weight: 800; color: var(--primary); }
.cl-date { font-size: 13px; color: var(--text-light); }
.cl-badge { background: var(--accent); color: var(--primary); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 4px; }
.cl-badge.new { background: #28a745; color: #fff; }
.cl-content h2 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 14px; }
.cl-content ul { display: flex; flex-direction: column; gap: 8px; }
.cl-content li { font-size: 14px; color: var(--text-light); padding-left: 4px; }

/* ===== 关于页 ===== */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 24px 0 40px; }
.value-card { background: #fff; border-radius: var(--radius); padding: 24px 18px; text-align: center; box-shadow: var(--shadow); }
.value-icon { font-size: 36px; margin-bottom: 12px; }
.value-card h3 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.value-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 24px 0 40px; }
.stat-card { background: var(--primary); border-radius: var(--radius); padding: 28px 20px; text-align: center; }
.stat-big { font-size: 28px; font-weight: 800; color: var(--accent); margin-bottom: 6px; }
.stat-card .stat-label { font-size: 13px; color: rgba(255,255,255,0.7); }

/* ===== 联系页 ===== */
.contact-info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 40px; }
.contact-info-card { background: #fff; border-radius: var(--radius); padding: 28px 20px; text-align: center; box-shadow: var(--shadow); border-top: 4px solid var(--accent); }
.ci-icon { font-size: 36px; margin-bottom: 12px; }
.contact-info-card h2 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.ci-value { font-size: 15px; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
.ci-note { font-size: 12px; color: var(--text-light); }
.contact-form { background: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); max-width: 600px; margin-bottom: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); }
.success-msg { background: #d4edda; border: 1px solid #c3e6cb; border-radius: var(--radius-sm); padding: 16px; color: #155724; font-size: 14px; margin-bottom: 20px; }
.social-share { margin-top: 40px; }
.social-share h2 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.social-share p { color: var(--text-light); margin-bottom: 16px; }
.share-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.share-btn { padding: 10px 20px; border-radius: 50px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all var(--transition); border: 2px solid transparent; }
.share-btn.weibo { background: #e6162d; color: #fff; }
.share-btn.wechat { background: #07c160; color: #fff; }
.share-btn.copy { background: var(--primary); color: #fff; }
.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }
.share-tip { margin-top: 10px; font-size: 13px; color: var(--text-light); background: var(--bg-light); padding: 8px 12px; border-radius: var(--radius-sm); }

/* ===== FAQ页 ===== */
.faq-categories { margin-bottom: 40px; }
.faq-categories h2 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 20px; }

/* ===== CTA盒子 ===== */
.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  margin-top: 48px;
}
.cta-box h2 { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-box p { color: rgba(255,255,255,0.75); margin-bottom: 24px; font-size: 15px; }
.cta-box strong { color: var(--accent); }
.cta-box .btn { margin: 0 8px; }
.cta-box .btn-outline { color: #fff; border-color: rgba(255,255,255,0.5); }
.cta-box .btn-outline:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .media-grid { grid-template-columns: repeat(2, 1fr); }
  .scenes-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-detail-card { grid-template-columns: 1fr; }
  .feature-detail-card.reverse { direction: ltr; }
}
@media (max-width: 768px) {
  .story-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .scenes-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .guide-steps { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .video-tutorial-cards { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; padding: 8px 0; }
  .nav-toggle { display: block; }
  .hero-section { min-height: 400px; }
  .hero-stats { gap: 16px; }
  .section { padding: 48px 0; }
  .modal-content { width: 95%; }
  .mock-player-screen { height: 200px; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .search-form { flex-direction: column; }
  .search-input { border-radius: 50px; border-right: 2px solid rgba(255,193,7,0.4); }
  .search-btn { border-radius: 50px; }
  .stats-grid { grid-template-columns: 1fr; }
}