/* ==========================================================================
   樱桃魔改视频 - 题材专区 现代响应式排版与视觉框架
   品牌主题：樱桃红 (#d32f2f) 与 暖石米白 (#f8f7f4)
   ========================================================================== */

:root {
  --primary: #d32f2f;
  --primary-hover: #b71c1c;
  --primary-light: #fff0f0;
  --primary-border: #ffdada;
  --bg-page: #f8f7f4;
  --bg-card: #ffffff;
  --bg-subtle: #faf8f5;
  --border-color: #e8e4de;
  --border-light: #f0ede8;
  --text-main: #1f1e1c;
  --text-muted: #5c5852;
  --text-sub: #8c8780;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 20px rgba(211, 47, 47, 0.12);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(1200px, calc(100% - 36px));
  margin: auto;
}

/* 键盘无障碍跳跃链接 */
.skip-link {
  position: absolute;
  top: -999px;
  left: 16px;
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus {
  top: 16px;
}

/* 面包屑导航 (百度爬虫层级友好) */
.breadcrumbs {
  font-size: 13px;
  color: var(--text-sub);
  padding: 16px 0 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumbs a {
  color: var(--text-muted);
  transition: var(--transition);
}
.breadcrumbs a:hover {
  color: var(--primary);
}

/* ================= 头部导航框架 ================= */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 50;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 20px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.2px;
  color: var(--text-main);
  flex-shrink: 0;
}

.wordmark img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--primary-border);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
}

.site-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.menu-toggle {
  display: none;
  background: #fff;
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--bg-subtle);
  border-color: var(--primary);
  color: var(--primary);
}

/* ================= 焦点 Hero 区域框架 ================= */
.hero {
  padding: 24px 0 28px;
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.hero-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.brand-display {
  display: inline-block;
  margin: 0 0 8px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 800;
  margin: 6px 0 10px;
  line-height: 1.35;
  color: var(--text-main);
}

.kw-intro {
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 760px;
}

.hero-tagline {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  border-left: 3px solid var(--primary);
  padding-left: 14px;
  white-space: nowrap;
  flex-shrink: 0;
}

.hero-tagline span {
  color: var(--text-main);
  font-size: 18px;
}

/* 百度黄金 16:9 出图焦点大图 (800x450) */
.hero-banner-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  background: var(--border-light);
}

.hero-banner-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.hero-banner-wrap:hover img {
  transform: scale(1.02);
}

.hero-banner-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: rgba(28, 26, 23, 0.85);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-banner-badge::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #4caf50;
  border-radius: 50%;
}

.hero-body {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
}

.hero-picture {
  display: block;
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  background: var(--border-light);
  transition: var(--transition);
}

.hero-picture:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.hero-picture img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.hero-caption {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.hero-intro {
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-work {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
}

.hero-work h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--text-main);
}

.hero-work p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================= 题材分类对比概览表 ================= */
.genre-matrix-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}

.matrix-header {
  margin-bottom: 18px;
}

.matrix-header h2 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--text-main);
}

.matrix-header p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.matrix-table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  text-align: left;
}

.matrix-table th {
  background: var(--bg-subtle);
  color: var(--text-main);
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.matrix-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-muted);
}

.matrix-table tr:hover td {
  background: var(--primary-light);
}

.badge-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}

/* ================= 专区双列响应式网格框架 ================= */
.genre-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-bottom: 28px;
  align-items: start;
}

.genre {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.section-heading {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-light);
}

.section-heading h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 4px 0 8px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-heading h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
}

.section-heading p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
}

.work-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* 卡片排版优化 */
.work-entry {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  transition: var(--transition);
}

.work-entry:hover {
  transform: translateY(-2px);
  background: #fff;
  border-color: var(--primary-border);
  box-shadow: var(--shadow-hover);
}

.work-cover {
  display: block;
  width: 108px;
  height: 144px;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--border-light);
  flex-shrink: 0;
}

.work-cover img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.work-entry:hover .work-cover img {
  transform: scale(1.05);
}

.work-copy {
  min-width: 0;
}

.work-copy h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
}

.synopsis {
  margin: 0 0 10px;
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.work-meta {
  color: var(--text-sub);
  font-size: 11px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.work-meta span {
  background: var(--border-light);
  color: var(--text-muted);
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 500;
}

.work-meta span:first-child {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}

/* ================= 分类引导栏 ================= */
.collection-bar {
  background: linear-gradient(135deg, #fff5f5 0%, #ffffff 100%);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  margin: 32px 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
}

.collection-bar h2 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--text-main);
}

.collection-bar p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.text-action {
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(211, 47, 47, 0.3);
}

.text-action:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
}

/* ================= 关于本站 ================= */
.about {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}

.about h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 4px 0 16px;
  line-height: 1.35;
  color: var(--text-main);
}

.about-copy p {
  margin: 0 0 12px;
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

.reading-notes {
  background: var(--bg-subtle);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 18px 22px;
  margin-top: 20px;
}

.reading-notes h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.reading-notes p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================= FAQ 常见问题解答 ================= */
.site-faq {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 28px 0 36px;
  box-shadow: var(--shadow-sm);
}

.site-faq h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 20px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-faq h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 2px;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.faq-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-item h3::before {
  content: "Q";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-item p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================= 页脚框架 ================= */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  color: var(--text-sub);
  font-size: 13px;
  margin-top: 36px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ================= 移动端适配与响应式规则 ================= */
@media (max-width: 960px) {
  .hero-body {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
  }
  .genre-pair {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .wrap {
    width: calc(100% - 24px);
  }
  .header-inner {
    min-height: 60px;
  }
  .menu-toggle {
    display: block;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    gap: 4px;
  }
  .site-nav.is-open {
    display: flex;
  }
  .site-nav a {
    width: 100%;
    padding: 10px 14px;
  }
  .hero-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .hero-tagline {
    border-left: none;
    border-top: 2px solid var(--primary);
    padding-left: 0;
    padding-top: 8px;
    white-space: normal;
  }
  .hero-body {
    grid-template-columns: 1fr;
  }
  .hero-picture {
    max-width: 240px;
    margin: 0 auto;
  }
  .collection-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .work-entry {
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 12px;
    padding: 10px;
  }
  .work-cover {
    width: 90px;
    height: 120px;
  }
  .work-copy h3 {
    font-size: 15px;
  }
  .synopsis {
    font-size: 12px;
  }
}