/* 蘑菇视频 - 复古摄影风格主样式 */
/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Serif SC', 'STSong', 'SimSun', Georgia, serif;
  background-color: #f5f0e8;
  color: #3a2e22;
  line-height: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
ul, ol { list-style: none; }

/* ===== 复古纹理覆盖层 ===== */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* ===== 颜色变量 ===== */
:root {
  --cream: #f5f0e8;
  --warm-white: #faf6ef;
  --sepia: #c8a96e;
  --amber: #d4874a;
  --dark-brown: #3a2e22;
  --medium-brown: #6b4c2a;
  --light-brown: #a07850;
  --dark-red: #7a2e2e;
  --film-black: #1a1410;
  --soft-gray: #9e9080;
  --border-color: #d4c4a0;
}

/* ===== 顶部公告栏 ===== */
.top-bar {
  background: var(--film-black);
  color: var(--sepia);
  text-align: center;
  padding: 6px 20px;
  font-size: 0.78rem;
  letter-spacing: 2px;
}

/* ===== 导航栏 ===== */
.navbar {
  background: rgba(26, 20, 16, 0.97);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(200, 169, 110, 0.3);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--sepia);
  object-fit: cover;
}
.nav-logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--sepia);
  letter-spacing: 2px;
}
.nav-logo-text span { color: var(--amber); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-menu a {
  color: rgba(245, 240, 232, 0.85);
  padding: 8px 14px;
  font-size: 0.88rem;
  letter-spacing: 1px;
  border-radius: 4px;
  transition: all 0.3s;
  white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--sepia);
  background: rgba(200, 169, 110, 0.15);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--sepia);
  transition: all 0.3s;
}

/* ===== 搜索框 ===== */
.search-bar-wrap {
  background: var(--film-black);
  padding: 12px 24px;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid rgba(200, 169, 110, 0.2);
}
.search-bar-inner {
  display: flex;
  align-items: center;
  max-width: 560px;
  width: 100%;
  background: rgba(245, 240, 232, 0.08);
  border: 1px solid rgba(200, 169, 110, 0.4);
  border-radius: 30px;
  overflow: hidden;
  padding: 0 16px;
}
.search-bar-inner input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--cream);
  font-size: 0.9rem;
  padding: 10px 0;
  font-family: inherit;
  letter-spacing: 1px;
}
.search-bar-inner input::placeholder { color: rgba(200, 169, 110, 0.5); }
.search-bar-inner button {
  background: none;
  border: none;
  color: var(--sepia);
  cursor: pointer;
  font-size: 1rem;
  padding: 8px 4px;
  transition: color 0.3s;
}
.search-bar-inner button:hover { color: var(--amber); }

/* ===== 首屏Banner ===== */
.hero-banner {
  position: relative;
  height: 88vh;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: sepia(30%) brightness(0.7) contrast(1.1);
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero-banner:hover .hero-bg { transform: scale(1.0); }
.hero-film-frame {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(26,20,16,0.6) 0%, transparent 25%, transparent 75%, rgba(26,20,16,0.7) 100%),
    linear-gradient(to right, rgba(26,20,16,0.4) 0%, transparent 15%, transparent 85%, rgba(26,20,16,0.4) 100%);
  pointer-events: none;
}
.hero-film-frame::before,
.hero-film-frame::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 40px;
  background: repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(26,20,16,0.9) 18px, rgba(26,20,16,0.9) 22px);
}
.hero-film-frame::before { top: 0; }
.hero-film-frame::after { bottom: 0; }
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 800px;
}
.hero-tag {
  display: inline-block;
  border: 1px solid var(--sepia);
  color: var(--sepia);
  font-size: 0.75rem;
  letter-spacing: 4px;
  padding: 5px 18px;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  color: var(--cream);
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
  letter-spacing: 3px;
}
.hero-title em { color: var(--sepia); font-style: normal; }
.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(245, 240, 232, 0.8);
  margin-bottom: 36px;
  letter-spacing: 2px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--sepia);
  color: var(--film-black);
  padding: 13px 32px;
  font-size: 0.9rem;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.3s;
  font-weight: 600;
}
.btn-primary:hover { background: var(--amber); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--cream);
  padding: 12px 32px;
  font-size: 0.9rem;
  letter-spacing: 2px;
  border: 1px solid rgba(245, 240, 232, 0.6);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.3s;
}
.btn-outline:hover { border-color: var(--sepia); color: var(--sepia); transform: translateY(-2px); }

/* ===== 通用区块样式 ===== */
.section {
  padding: 72px 24px;
}
.section-alt {
  background: #ede8de;
}
.section-dark {
  background: var(--film-black);
  color: var(--cream);
}
.container {
  max-width: 1200px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 52px;
}
.section-label {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 5px;
  color: var(--sepia);
  text-transform: uppercase;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--sepia);
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--dark-brown);
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-dark .section-title { color: var(--cream); }
.section-desc {
  color: var(--soft-gray);
  font-size: 0.95rem;
  max-width: 560px;
  margin: 0 auto;
}
.section-dark .section-desc { color: rgba(245,240,232,0.65); }

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: #fff;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all 0.4s ease;
  cursor: pointer;
  position: relative;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(58, 46, 34, 0.2);
}
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.4s ease;
  filter: sepia(20%);
}
.video-card:hover .video-thumb img {
  transform: scale(1.08);
  filter: sepia(40%) contrast(1.1);
}
/* 胶片颗粒效果 */
.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s;
}
.video-card:hover .video-thumb::before { opacity: 1; }
/* 暗角效果 */
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(26,20,16,0.5) 100%);
  z-index: 3;
  opacity: 0;
  transition: opacity 0.4s;
}
.video-card:hover .video-thumb::after { opacity: 1; }
/* 播放按钮 */
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  background: rgba(200, 169, 110, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  opacity: 0;
  transition: all 0.3s;
}
.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--film-black);
  margin-left: 4px;
}
.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(26,20,16,0.8);
  color: var(--sepia);
  font-size: 0.72rem;
  padding: 3px 8px;
  letter-spacing: 1px;
  z-index: 4;
}
.video-info {
  padding: 16px;
}
.video-title {
  font-size: 0.95rem;
  color: var(--dark-brown);
  margin-bottom: 8px;
  line-height: 1.5;
  font-weight: 600;
}
.video-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--soft-gray);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== 品牌故事模块 ===== */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.story-img {
  position: relative;
}
.story-img img {
  width: 100%;
  filter: sepia(25%) contrast(1.05);
  border: 6px solid var(--cream);
  box-shadow: 8px 8px 0 var(--border-color), 12px 12px 0 rgba(200,169,110,0.3);
}
.story-img::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--sepia);
  opacity: 0.4;
  pointer-events: none;
}
.story-text .section-label { text-align: left; }
.story-text h2 {
  font-size: 1.9rem;
  color: var(--dark-brown);
  margin-bottom: 20px;
  letter-spacing: 2px;
}
.story-text p {
  color: var(--medium-brown);
  margin-bottom: 16px;
  font-size: 0.95rem;
  line-height: 2;
}
.story-stats {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sepia);
  display: block;
}
.stat-label { font-size: 0.78rem; color: var(--soft-gray); letter-spacing: 1px; }

/* ===== 影像墙 ===== */
.gallery-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: 8px;
}
.gallery-item {
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.gallery-item:nth-child(1) { grid-column: span 2; grid-row: span 2; }
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: sepia(20%) contrast(1.05);
  transition: all 0.5s ease;
  aspect-ratio: 1;
}
.gallery-item:nth-child(1) img { aspect-ratio: auto; }
.gallery-item:hover img { filter: sepia(40%) contrast(1.15) brightness(0.9); transform: scale(1.05); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(26,20,16,0.6) 100%);
  opacity: 0;
  transition: opacity 0.4s;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ===== AI滤镜模块 ===== */
.ai-module {
  background: linear-gradient(135deg, var(--film-black) 0%, #2a1f14 100%);
  padding: 80px 24px;
}
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.ai-text .section-title { color: var(--cream); }
.ai-text p { color: rgba(245,240,232,0.75); margin-bottom: 16px; line-height: 2; }
.ai-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}
.ai-feature-item {
  background: rgba(200,169,110,0.1);
  border: 1px solid rgba(200,169,110,0.2);
  padding: 16px;
  border-radius: 4px;
}
.ai-feature-item h4 { color: var(--sepia); font-size: 0.9rem; margin-bottom: 6px; }
.ai-feature-item p { color: rgba(245,240,232,0.6); font-size: 0.82rem; margin: 0; }
.ai-img img { filter: sepia(15%) contrast(1.1); border: 4px solid rgba(200,169,110,0.3); }

/* ===== 摄影师模块 ===== */
.photographers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 28px;
}
.photographer-card {
  text-align: center;
  padding: 28px 20px;
  background: var(--warm-white);
  border: 1px solid var(--border-color);
  transition: all 0.3s;
}
.photographer-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(58,46,34,0.12); }
.photographer-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid var(--sepia);
  filter: sepia(20%);
}
.photographer-avatar img { width: 100%; height: 100%; object-fit: cover; }
.photographer-name { font-size: 1rem; font-weight: 700; color: var(--dark-brown); margin-bottom: 4px; }
.photographer-role { font-size: 0.8rem; color: var(--sepia); letter-spacing: 1px; margin-bottom: 10px; }
.photographer-desc { font-size: 0.82rem; color: var(--soft-gray); line-height: 1.7; }

/* ===== 用户评价 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--warm-white);
  border: 1px solid var(--border-color);
  padding: 28px;
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 20px;
  font-size: 4rem;
  color: var(--sepia);
  opacity: 0.3;
  line-height: 1;
  font-family: Georgia, serif;
}
.review-stars { color: var(--amber); font-size: 0.9rem; margin-bottom: 12px; }
.review-text { font-size: 0.9rem; color: var(--medium-brown); line-height: 1.9; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--sepia);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--film-black);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.review-name { font-size: 0.88rem; font-weight: 600; color: var(--dark-brown); }
.review-date { font-size: 0.75rem; color: var(--soft-gray); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--dark-brown);
  font-weight: 600;
  letter-spacing: 0.5px;
}
.faq-question:hover { color: var(--sepia); }
.faq-icon {
  width: 24px;
  height: 24px;
  border: 1px solid var(--sepia);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sepia);
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p {
  padding: 0 0 20px;
  font-size: 0.9rem;
  color: var(--medium-brown);
  line-height: 1.9;
}

/* ===== 合作伙伴 ===== */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}
.partner-logo {
  width: 140px;
  height: 60px;
  background: var(--warm-white);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--soft-gray);
  letter-spacing: 1px;
  transition: all 0.3s;
}
.partner-logo:hover { border-color: var(--sepia); color: var(--sepia); }

/* ===== 联系模块 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}
.contact-card {
  background: rgba(200,169,110,0.08);
  border: 1px solid rgba(200,169,110,0.25);
  padding: 32px 24px;
  text-align: center;
}
.contact-icon {
  font-size: 2rem;
  color: var(--sepia);
  margin-bottom: 16px;
}
.contact-card h3 { color: var(--cream); margin-bottom: 10px; font-size: 1rem; letter-spacing: 1px; }
.contact-card p { color: rgba(245,240,232,0.65); font-size: 0.88rem; line-height: 1.8; }
.qrcode-box {
  width: 100px;
  height: 100px;
  background: var(--cream);
  margin: 12px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--soft-gray);
  border: 2px solid var(--sepia);
}

/* ===== 页脚 ===== */
.footer {
  background: #0f0c09;
  color: rgba(245,240,232,0.6);
  padding: 48px 24px 24px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(200,169,110,0.15);
  margin-bottom: 28px;
}
.footer-brand .footer-logo {
  font-size: 1.4rem;
  color: var(--sepia);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 0.85rem; line-height: 1.9; margin-bottom: 16px; }
.footer-social {
  display: flex;
  gap: 10px;
}
.social-btn {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(200,169,110,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--sepia);
  transition: all 0.3s;
  cursor: pointer;
}
.social-btn:hover { background: rgba(200,169,110,0.15); border-color: var(--sepia); }
.footer-col h4 {
  color: var(--sepia);
  font-size: 0.88rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(200,169,110,0.2);
}
.footer-col ul li {
  margin-bottom: 8px;
}
.footer-col ul li a {
  font-size: 0.82rem;
  color: rgba(245,240,232,0.55);
  transition: color 0.3s;
}
.footer-col ul li a:hover { color: var(--sepia); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.78rem;
  color: rgba(245,240,232,0.35);
}
.footer-bottom a { color: rgba(200,169,110,0.6); }
.footer-bottom a:hover { color: var(--sepia); }

/* ===== 面包屑 ===== */
.breadcrumb {
  background: #ede8de;
  padding: 12px 24px;
  font-size: 0.82rem;
  color: var(--soft-gray);
  border-bottom: 1px solid var(--border-color);
}
.breadcrumb a { color: var(--sepia); }
.breadcrumb span { margin: 0 8px; }

/* ===== 内页Hero ===== */
.inner-hero {
  background: var(--film-black);
  padding: 60px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.inner-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  filter: sepia(50%);
}
.inner-hero-content { position: relative; z-index: 1; }
.inner-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--cream);
  letter-spacing: 3px;
  margin-bottom: 12px;
}
.inner-hero p { color: rgba(245,240,232,0.7); font-size: 1rem; letter-spacing: 1px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .story-grid, .ai-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: rgba(26,20,16,0.98); padding: 16px; gap: 4px; }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: flex; }
  .gallery-wall { grid-template-columns: 1fr 1fr; }
  .gallery-item:nth-child(1) { grid-column: span 2; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-btns { flex-direction: column; align-items: center; }
  .photographers-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .section { padding: 48px 16px; }
  .video-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .gallery-wall { grid-template-columns: 1fr; }
  .gallery-item:nth-child(1) { grid-column: span 1; }
  .story-stats { flex-direction: column; gap: 16px; }
  .ai-features { grid-template-columns: 1fr; }
}

/* ===== 懒加载占位 ===== */
img[loading="lazy"] { background: linear-gradient(90deg, #ede8de 25%, #f5f0e8 50%, #ede8de 75%); background-size: 200% 100%; }

/* ===== 滚动动画 ===== */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.page-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--medium-brown);
  cursor: pointer;
  transition: all 0.3s;
}
.page-btn:hover, .page-btn.active {
  background: var(--sepia);
  color: var(--film-black);
  border-color: var(--sepia);
}

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  background: rgba(200,169,110,0.12);
  color: var(--sepia);
  border: 1px solid rgba(200,169,110,0.3);
  font-size: 0.72rem;
  padding: 3px 10px;
  letter-spacing: 1px;
  margin: 3px;
}