/* ====================================================
   51吃瓜 - 主样式文件
   风格：高端优雅·轻奢简约·温暖治愈
   色系：浅米白 + 莫兰迪（奶茶棕、雾蓝、浅杏、豆沙粉）
   ==================================================== */

/* ---- CSS变量 ---- */
:root {
  --color-bg:         #faf8f5;
  --color-cream:      #f5f0e8;
  --color-white:      #ffffff;
  --color-brown:      #8b6f5e;
  --color-brown-dark: #6b5044;
  --color-brown-light:#c4a882;
  --color-fog-blue:   #8fa8b8;
  --color-apricot:    #e8d5c0;
  --color-bean-pink:  #d4a0a0;
  --color-sage:       #a8b89a;
  --color-text-dark:  #3a2e28;
  --color-text-mid:   #6b5c52;
  --color-text-light: #9a8880;
  --color-border:     #e8ddd4;
  --color-border-light: #f0e8de;

  --font-serif:  'Georgia', 'Noto Serif SC', 'STSong', serif;
  --font-sans:   'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-xs:  0 1px 4px rgba(90,70,50,0.06);
  --shadow-sm:  0 2px 12px rgba(90,70,50,0.08);
  --shadow-md:  0 6px 24px rgba(90,70,50,0.12);
  --shadow-lg:  0 12px 48px rgba(90,70,50,0.16);

  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --header-h:   68px;
  --search-h:   52px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }

/* ---- 粒子呼吸动画 ---- */
@keyframes breathe {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---- 滚动显现 ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- 按钮 ---- */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--color-brown);
  color: #fff;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary:hover {
  background: var(--color-brown-dark);
  box-shadow: 0 6px 20px rgba(107,80,68,0.3);
  transform: translateY(-2px);
}
.btn-secondary {
  display: inline-block;
  padding: 13px 30px;
  background: transparent;
  color: var(--color-brown);
  border: 1.5px solid var(--color-brown);
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-secondary:hover {
  background: var(--color-brown);
  color: #fff;
  transform: translateY(-2px);
}

/* ---- 标签 ---- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  padding: 7px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--color-text-mid);
  cursor: pointer;
  transition: all var(--transition);
}
.tag:hover, .tag:first-child {
  background: var(--color-brown);
  color: #fff;
  border-color: var(--color-brown);
}

/* ---- 导航 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,248,245,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-dark);
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-brown), var(--color-brown-light));
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  animation: breathe 4s ease-in-out infinite;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.site-nav a {
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--color-text-mid);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.site-nav a:hover, .site-nav a.active {
  color: var(--color-brown);
  background: var(--color-cream);
}
.site-nav a.nav-cta {
  background: var(--color-brown);
  color: #fff;
  padding: 8px 18px;
  border-radius: 100px;
}
.site-nav a.nav-cta:hover { background: var(--color-brown-dark); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- 搜索栏 ---- */
.search-bar-wrap {
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--search-h);
  display: flex;
  align-items: center;
}
.search-bar-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  gap: 0;
}
.search-input {
  flex: 1;
  height: 38px;
  border: 1.5px solid var(--color-border);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  padding: 0 16px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--color-text-dark);
  background: var(--color-white);
  outline: none;
  transition: border-color var(--transition);
}
.search-input:focus { border-color: var(--color-brown); }
.search-btn {
  height: 38px;
  padding: 0 18px;
  background: var(--color-brown);
  color: #fff;
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition);
}
.search-btn:hover { background: var(--color-brown-dark); }

/* ---- Hero Banner ---- */
.hero-banner {
  position: relative;
  height: calc(100vh - var(--header-h) - var(--search-h));
  min-height: 480px;
  max-height: 780px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-bg {
  position: absolute;
  inset: -5%;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 0.1s linear;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(58,46,40,0.25) 0%,
    rgba(58,46,40,0.45) 60%,
    rgba(58,46,40,0.65) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 720px;
  animation: fadeInUp 1s ease both;
}
.hero-tag {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 100px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-btns .btn-primary { background: rgba(255,255,255,0.95); color: var(--color-brown); }
.hero-btns .btn-primary:hover { background: #fff; }
.hero-btns .btn-secondary { border-color: rgba(255,255,255,0.7); color: #fff; }
.hero-btns .btn-secondary:hover { background: rgba(255,255,255,0.2); }

/* ---- 通用Section ---- */
.section { padding: 80px 0; }
.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-header { text-align: center; margin-bottom: 48px; }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-brown-light);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--color-text-dark);
  font-weight: 700;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-divider {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brown-light), var(--color-bean-pink));
  margin: 20px auto 0;
  border-radius: 2px;
}

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-cream);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(58,46,40,0);
  transition: background var(--transition);
}
.video-card:hover .video-play-btn { background: rgba(58,46,40,0.35); }
.play-icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.play-icon::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 9px 0 9px 18px;
  border-color: transparent transparent transparent var(--color-brown);
  margin-left: 4px;
}
.video-card:hover .play-icon { opacity: 1; transform: scale(1); }
.video-halo {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(196,168,130,0.15) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .video-halo { opacity: 1; }
.video-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(255,255,255,0.9);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-brown);
  font-weight: 500;
}
.video-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 3px 10px;
  background: rgba(0,0,0,0.6);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: #fff;
}
.video-info { padding: 18px 20px 20px; }
.video-title {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-desc {
  font-size: 0.83rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* ---- 故事卡片 ---- */
.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.story-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}
.story-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.story-img {
  aspect-ratio: 3/2;
  overflow: hidden;
}
.story-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.story-card:hover .story-img img { transform: scale(1.05); }
.story-body { padding: 22px 24px 24px; }
.story-category {
  display: inline-block;
  padding: 3px 12px;
  background: var(--color-cream);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-brown);
  margin-bottom: 12px;
}
.story-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 10px;
  line-height: 1.5;
}
.story-excerpt {
  font-size: 0.87rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.story-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}
.story-author {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-light);
}
.story-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}
.story-read-more {
  font-size: 0.82rem;
  color: var(--color-brown);
  cursor: pointer;
  transition: color var(--transition);
}
.story-read-more:hover { color: var(--color-brown-dark); }

/* ---- 影像墙 ---- */
.image-wall {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.image-wall-item {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
}
.image-wall-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.image-wall-item:hover img { transform: scale(1.08); }
.image-wall-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(58,46,40,0.65) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 16px;
}
.image-wall-item:hover .image-wall-overlay { opacity: 1; }
.image-wall-caption {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.4;
}

/* ---- AI模块 ---- */
.ai-section { background: linear-gradient(135deg, var(--color-cream) 0%, #f0e8f0 100%); }
.ai-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.ai-feature-list { display: flex; flex-direction: column; gap: 20px; }
.ai-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: rgba(255,255,255,0.7);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition);
}
.ai-feature-item:hover { box-shadow: var(--shadow-sm); }
.ai-feature-icon { font-size: 1.5rem; flex-shrink: 0; }
.ai-feature-text h4 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-text-dark);
  margin-bottom: 6px;
}
.ai-feature-text p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.7; }
.ai-visual { position: relative; }
.ai-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.ai-badge {
  position: absolute;
  bottom: -16px;
  right: -16px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--color-brown), var(--color-brown-light));
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  animation: float 3s ease-in-out infinite;
}

/* ---- 达人网格 ---- */
.creator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.creator-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}
.creator-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.creator-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--color-apricot);
}
.creator-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}
.creator-role {
  font-size: 0.78rem;
  color: var(--color-brown-light);
  margin-bottom: 12px;
}
.creator-desc {
  font-size: 0.83rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.creator-stats { display: flex; justify-content: center; gap: 24px; }
.creator-stat { text-align: center; }
.creator-stat strong { display: block; font-size: 1rem; color: var(--color-brown); font-weight: 700; }
.creator-stat span { font-size: 0.75rem; color: var(--color-text-light); }

/* ---- 评价模块 ---- */
.review-section { background: var(--color-bg); }
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-xs);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.review-quote {
  font-size: 3.5rem;
  color: var(--color-apricot);
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: 8px;
}
.review-text {
  font-size: 0.88rem;
  color: var(--color-text-mid);
  line-height: 1.8;
  margin-bottom: 20px;
}
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.review-name { font-size: 0.88rem; font-weight: 600; color: var(--color-text-dark); }
.review-stars { font-size: 0.75rem; color: var(--color-brown-light); margin-top: 2px; }

/* ---- 合作伙伴 ---- */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}
.partner-logo {
  padding: 14px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--color-text-mid);
  transition: all var(--transition);
  cursor: default;
}
.partner-logo:hover {
  border-color: var(--color-brown-light);
  color: var(--color-brown);
  box-shadow: var(--shadow-xs);
}

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border-light);
  overflow: hidden;
}
.faq-question {
  padding: 20px 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--color-brown); }
.faq-icon {
  font-size: 1.3rem;
  color: var(--color-brown-light);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; padding-bottom: 20px; }
.faq-answer p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ---- 联系模块 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.contact-icon { font-size: 2rem; margin-bottom: 16px; }
.contact-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 12px;
}
.contact-info { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.9; }
.qr-placeholder {
  margin-top: 16px;
  width: 100px;
  height: 100px;
  background: var(--color-cream);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-left: auto;
  margin-right: auto;
}

/* ---- 分页 ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 0.88rem;
  color: var(--color-text-mid);
  cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--color-brown);
  color: #fff;
  border-color: var(--color-brown);
}

/* ---- 内页Hero ---- */
.page-hero {
  background: var(--color-cream);
  padding: 56px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-border-light);
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--color-brown); }
.breadcrumb a:hover { text-decoration: underline; }

/* ---- 页脚 ---- */
.site-footer {
  background: linear-gradient(135deg, #3a2e28 0%, #2a2018 100%);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .site-logo { color: rgba(255,255,255,0.9); margin-bottom: 16px; }
.footer-brand .logo-icon { background: linear-gradient(135deg, var(--color-brown-light), var(--color-bean-pink)); }
.footer-brand p { font-size: 0.85rem; line-height: 1.9; color: rgba(255,255,255,0.5); }
.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-brown-light); }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copyright { font-size: 0.78rem; color: rgba(255,255,255,0.35); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.78rem; color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-brown-light); }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 34px;
  height: 34px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  transition: all var(--transition);
  cursor: pointer;
}
.social-btn:hover { background: var(--color-brown); color: #fff; }

/* ---- 返回顶部 ---- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--color-brown);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
  box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--color-brown-dark); }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .ai-inner { grid-template-columns: 1fr; gap: 40px; }
  .image-wall { grid-template-columns: repeat(3, 1fr); }
  .image-wall-item:nth-child(4),
  .image-wall-item:nth-child(5) { display: none; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(250,248,245,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 99;
  }
  .site-nav.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .site-nav a { padding: 12px 16px; }
  .hero-banner { height: 70vh; min-height: 400px; }
  .section { padding: 56px 0; }
  .video-grid { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; }
  .creator-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .image-wall { grid-template-columns: repeat(2, 1fr); }
  .image-wall-item:nth-child(4) { display: block; }
  .image-wall-item:nth-child(5) { display: none; }
  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .creator-grid { grid-template-columns: 1fr; }
  .image-wall { grid-template-columns: 1fr 1fr; }
  .search-bar-inner { padding: 0 12px; }
}