/* 樱花视频 - 侘寂禅意美学主样式 */
/* Wabi-Sabi Zen Aesthetic - Core Stylesheet */

/* ===== CSS 变量 / 色彩系统 ===== */
:root {
  --color-rice: #f5f0e8;
  --color-mist: #e8e4dc;
  --color-ash: #c8c4bc;
  --color-stone: #9a9690;
  --color-driftwood: #7a6e60;
  --color-bark: #5a5048;
  --color-ink: #2a2420;
  --color-fog-blue: #8a9898;
  --color-clay: #b08870;
  --color-moss: #7a8870;
  --color-paper: #f0ece0;
  --color-shadow: rgba(42, 36, 32, 0.08);

  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', Georgia, serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --radius: 2px;
  --shadow-soft: 0 4px 24px rgba(42, 36, 32, 0.08);
  --shadow-hover: 0 8px 40px rgba(42, 36, 32, 0.14);
}

/* ===== 重置与基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-rice);
  color: var(--color-ink);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

/* ===== 排版 ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-bark);
  letter-spacing: 0.05em;
}

h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p {
  color: var(--color-driftwood);
  line-height: 1.9;
  margin-bottom: 1em;
}

/* ===== 布局容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-stone);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  margin-bottom: 56px;
}

.section-divider {
  width: 40px;
  height: 1px;
  background: var(--color-clay);
  margin: 16px auto 40px;
  opacity: 0.6;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(245, 240, 232, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(154, 150, 144, 0.2);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 32px;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-bark);
  letter-spacing: 0.08em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-bark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-rice);
  font-size: 1rem;
  flex-shrink: 0;
}

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

.main-nav a {
  padding: 6px 14px;
  font-size: 0.88rem;
  color: var(--color-driftwood);
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-bark);
  background: rgba(90, 80, 72, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-bark);
  transition: var(--transition);
}

/* ===== 搜索框 ===== */
.search-bar-wrap {
  background: var(--color-mist);
  border-bottom: 1px solid rgba(154, 150, 144, 0.15);
  padding: 10px 0;
}

.search-bar-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--color-paper);
  border: 1px solid var(--color-ash);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition);
}

.search-bar-inner:focus-within {
  border-color: var(--color-clay);
  box-shadow: 0 0 0 3px rgba(176, 136, 112, 0.12);
}

.search-bar-inner input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 16px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-ink);
  outline: none;
}

.search-bar-inner input::placeholder {
  color: var(--color-stone);
}

.search-btn {
  padding: 10px 20px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-stone);
  font-size: 1rem;
  transition: var(--transition);
}

.search-btn:hover {
  color: var(--color-bark);
}

/* ===== 首屏 Banner ===== */
.hero-section {
  position: relative;
  height: 90vh;
  min-height: 560px;
  max-height: 900px;
  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;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(245, 240, 232, 0.3) 0%,
    rgba(245, 240, 232, 0.1) 40%,
    rgba(245, 240, 232, 0.6) 100%
  );
}

.hero-section:hover .hero-bg {
  transform: scale(1.0);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 720px;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-stone);
  border: 1px solid var(--color-ash);
  padding: 4px 16px;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.8rem);
  color: var(--color-bark);
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: 0.08em;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--color-driftwood);
  margin-bottom: 40px;
  letter-spacing: 0.06em;
}

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

.btn-primary {
  padding: 12px 32px;
  background: var(--color-bark);
  color: var(--color-rice);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-bark);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.btn-primary:hover {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

.btn-outline {
  padding: 12px 32px;
  background: transparent;
  color: var(--color-bark);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-bark);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.btn-outline:hover {
  background: rgba(90, 80, 72, 0.08);
}

/* ===== 视频卡片网格 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--color-paper);
  border: 1px solid rgba(154, 150, 144, 0.2);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(176, 136, 112, 0.3);
}

.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-mist);
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: brightness(0.95) saturate(0.9);
}

.video-card:hover .video-thumb img {
  transform: scale(1.04);
  filter: brightness(1.02) saturate(1.0);
}

/* 光影斑驳纹理呼吸效果 */
.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 30% 40%,
    rgba(245, 240, 232, 0.25) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 1;
  pointer-events: none;
}

.video-card:hover .video-thumb::before {
  opacity: 1;
  animation: lightBreath 3s ease-in-out infinite;
}

@keyframes lightBreath {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

/* 纹理遮罩 */
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 2;
  pointer-events: none;
}

.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: 52px;
  height: 52px;
  background: rgba(245, 240, 232, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 3;
  box-shadow: 0 4px 16px rgba(42, 36, 32, 0.2);
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 9px 0 9px 16px;
  border-color: transparent transparent transparent var(--color-bark);
  margin-left: 3px;
}

.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-info {
  padding: 16px 18px;
}

.video-category {
  font-size: 0.75rem;
  color: var(--color-clay);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.video-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-bark);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--color-stone);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===== 精选卡片 ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.featured-card {
  background: var(--color-paper);
  border: 1px solid rgba(154, 150, 144, 0.2);
  overflow: hidden;
  transition: var(--transition);
}

.featured-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.featured-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.featured-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
  filter: saturate(0.85);
}

.featured-card:hover .featured-card-img img {
  transform: scale(1.04);
  filter: saturate(1.0);
}

.featured-card-body {
  padding: 20px;
}

.featured-tag {
  font-size: 0.72rem;
  color: var(--color-clay);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.featured-card-body h3 {
  font-size: 1rem;
  margin-bottom: 10px;
  line-height: 1.5;
}

.featured-card-body p {
  font-size: 0.85rem;
  color: var(--color-stone);
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-stats {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--color-stone);
}

/* ===== 品牌故事模块 ===== */
.story-section {
  background: var(--color-mist);
  position: relative;
  overflow: hidden;
}

.story-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/story-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  filter: saturate(0);
}

.story-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.story-text h2 {
  margin-bottom: 24px;
}

.story-text p {
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.story-quote {
  border-left: 2px solid var(--color-clay);
  padding-left: 20px;
  margin: 24px 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-bark);
  font-style: italic;
  line-height: 1.7;
}

.story-img {
  position: relative;
}

.story-img img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  filter: saturate(0.7);
}

.story-img::after {
  content: '';
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 60%;
  height: 60%;
  border: 1px solid var(--color-ash);
  z-index: -1;
}

/* ===== 影像墙 ===== */
.imagery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 12px;
}

.imagery-item {
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.imagery-item:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.imagery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: saturate(0.75) brightness(0.95);
  min-height: 180px;
}

.imagery-item:first-child img {
  min-height: 360px;
}

.imagery-item:hover img {
  transform: scale(1.05);
  filter: saturate(1.0) brightness(1.0);
}

/* ===== AI 模块 ===== */
.ai-section {
  background: var(--color-ink);
  color: var(--color-rice);
  position: relative;
  overflow: hidden;
}

.ai-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/ai-module.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.ai-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.ai-content h2 {
  color: var(--color-rice);
  margin-bottom: 20px;
}

.ai-content p {
  color: var(--color-ash);
  margin-bottom: 16px;
}

.ai-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.ai-feature-item {
  padding: 16px;
  border: 1px solid rgba(200, 196, 188, 0.2);
  transition: var(--transition);
}

.ai-feature-item:hover {
  border-color: rgba(200, 196, 188, 0.4);
  background: rgba(245, 240, 232, 0.05);
}

.ai-feature-item h4 {
  color: var(--color-mist);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.ai-feature-item p {
  font-size: 0.82rem;
  color: var(--color-stone);
  margin: 0;
}

.ai-img img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  filter: saturate(0.6) brightness(0.8);
}

/* ===== 达人模块 ===== */
.creators-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.creator-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--color-paper);
  border: 1px solid rgba(154, 150, 144, 0.2);
  transition: var(--transition);
}

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

.creator-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 2px solid var(--color-ash);
}

.creator-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
}

.creator-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-bark);
  margin-bottom: 4px;
}

.creator-role {
  font-size: 0.78rem;
  color: var(--color-clay);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.creator-desc {
  font-size: 0.84rem;
  color: var(--color-stone);
  line-height: 1.7;
  margin: 0;
}

/* ===== 用户评价 ===== */
.reviews-section {
  background: var(--color-mist);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--color-paper);
  padding: 28px;
  border: 1px solid rgba(154, 150, 144, 0.2);
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow-soft);
}

.review-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  left: 20px;
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-ash);
  line-height: 1;
}

.review-text {
  font-size: 0.9rem;
  color: var(--color-driftwood);
  line-height: 1.8;
  margin-bottom: 20px;
  padding-top: 24px;
}

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

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-mist);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-bark);
  border: 1px solid var(--color-ash);
  flex-shrink: 0;
}

.review-author-info strong {
  display: block;
  font-size: 0.88rem;
  color: var(--color-bark);
  font-weight: 600;
}

.review-author-info span {
  font-size: 0.78rem;
  color: var(--color-stone);
}

.review-stars {
  color: var(--color-clay);
  font-size: 0.8rem;
  margin-top: 4px;
}

/* ===== 合作模块 ===== */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 56px;
}

.partner-item {
  width: 140px;
  height: 64px;
  background: var(--color-paper);
  border: 1px solid rgba(154, 150, 144, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--color-stone);
  letter-spacing: 0.06em;
  transition: var(--transition);
}

.partner-item:hover {
  border-color: var(--color-clay);
  color: var(--color-bark);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(154, 150, 144, 0.2);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-bark);
  transition: var(--transition);
  gap: 16px;
}

.faq-question:hover {
  color: var(--color-clay);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  transition: transform 0.3s ease;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-clay);
  transition: var(--transition);
}

.faq-icon::before {
  width: 12px;
  height: 1px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 1px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-answer p {
  padding-bottom: 20px;
  font-size: 0.9rem;
  color: var(--color-driftwood);
  line-height: 1.8;
  margin: 0;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ===== 联系模块 ===== */
.contact-section {
  background: var(--color-bark);
  color: var(--color-rice);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
}

.contact-block h3 {
  color: var(--color-mist);
  font-size: 1rem;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}

.contact-block p {
  color: var(--color-ash);
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.qr-placeholder {
  width: 100px;
  height: 100px;
  background: var(--color-mist);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--color-bark);
  text-align: center;
  margin-top: 12px;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.social-link {
  padding: 6px 14px;
  border: 1px solid rgba(200, 196, 188, 0.3);
  font-size: 0.8rem;
  color: var(--color-ash);
  transition: var(--transition);
}

.social-link:hover {
  border-color: var(--color-ash);
  color: var(--color-rice);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-ink);
  color: var(--color-stone);
  padding: 32px 0;
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-rice);
  margin-bottom: 16px;
  letter-spacing: 0.1em;
}

.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--color-stone);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-ash);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--color-driftwood);
  line-height: 1.8;
}

.footer-copy a {
  color: var(--color-stone);
}

/* ===== 内页栏目通用 ===== */
.page-hero {
  background: var(--color-mist);
  padding: 64px 0 48px;
  text-align: center;
  border-bottom: 1px solid rgba(154, 150, 144, 0.2);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--color-stone);
  margin-bottom: 20px;
}

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

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

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .imagery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .imagery-item:first-child {
    grid-column: span 2;
  }

  .story-inner,
  .ai-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-rice);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-ash);
    z-index: 999;
    gap: 4px;
  }

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

  .main-nav a {
    padding: 12px 16px;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

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

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .imagery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .imagery-item:first-child {
    grid-column: span 2;
  }

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

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

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .ai-features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .video-grid {
    grid-template-columns: 1fr;
  }

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

  .imagery-item:first-child {
    grid-column: span 1;
  }

  .header-inner {
    padding: 0 16px;
  }
}

/* ===== 懒加载占位 ===== */
img[loading="lazy"] {
  background: var(--color-mist);
}

/* ===== 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);
}

/* ===== 内页文章内容 ===== */
.article-content {
  max-width: 760px;
  margin: 0 auto;
}

.article-content h2 {
  margin: 40px 0 16px;
}

.article-content h3 {
  margin: 32px 0 12px;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content img {
  width: 100%;
  margin: 32px 0;
  filter: saturate(0.8);
}