/* =============================================
   17C 品牌官网 - 主样式文件
   风格：温暖治愈·自然生活·人文气息
   ============================================= */

/* 字体引入 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* CSS变量 - 大地色系 */
:root {
  --color-bg: #faf8f5;
  --color-bg-warm: #f5f0e8;
  --color-bg-section: #f0ebe0;
  --color-primary: #8b6f47;
  --color-primary-dark: #6b5230;
  --color-primary-light: #c4a882;
  --color-accent: #d4956a;
  --color-text: #3d3028;
  --color-text-light: #7a6a5a;
  --color-text-muted: #a89880;
  --color-border: #e8dfd0;
  --color-white: #ffffff;
  --color-cream: #fdf9f3;
  --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --shadow-soft: 0 4px 20px rgba(139, 111, 71, 0.08);
  --shadow-card: 0 8px 32px rgba(139, 111, 71, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* 基础重置 */
*, *::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-bg);
  color: var(--color-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* =============================================
   通用工具类
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-padding-sm {
  padding: 60px 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }

.section-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(139, 111, 71, 0.08);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.update-time {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 12px;
  letter-spacing: 1px;
}

.divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: 20px auto;
  border-radius: 2px;
}

/* =============================================
   导航栏
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -1px;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 2px;
}

.logo-tagline {
  font-size: 11px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

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

.nav a {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav a:hover,
.nav a.active {
  color: var(--color-primary);
  background: rgba(139, 111, 71, 0.08);
}

.nav-cta {
  background: var(--color-primary) !important;
  color: white !important;
  border-radius: 8px !important;
  padding: 8px 20px !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  transform: translateY(-1px);
}

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

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* 搜索框 */
.search-bar {
  background: var(--color-bg-warm);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.search-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-input-wrap {
  flex: 1;
  max-width: 560px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 10px 44px 10px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 24px;
  background: var(--color-white);
  font-size: 14px;
  color: var(--color-text);
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.1);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-btn {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  font-size: 16px;
}

.search-hot-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.search-hot-label {
  font-size: 12px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.search-tag {
  font-size: 12px;
  color: var(--color-text-light);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.search-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(139, 111, 71, 0.05);
}

/* =============================================
   主视觉 Banner
   ============================================= */
.hero {
  padding-top: 120px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #fdf9f3 0%, #f5ede0 50%, #ede4d4 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('../images/banner.jpg') center/cover no-repeat;
  opacity: 0.18;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139, 111, 71, 0.1);
  border: 1px solid rgba(139, 111, 71, 0.2);
  color: var(--color-primary);
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 20px;
  margin-bottom: 28px;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 24px;
}

.hero-title span {
  color: var(--color-primary);
  position: relative;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 40px;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: white;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(139, 111, 71, 0.3);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary);
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 500;
  border: 1.5px solid var(--color-primary);
  transition: var(--transition);
  cursor: pointer;
}

.btn-outline:hover {
  background: rgba(139, 111, 71, 0.08);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.hero-visual {
  position: relative;
}

.hero-img-main {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  aspect-ratio: 4/3;
  object-fit: cover;
}

.hero-img-float {
  position: absolute;
  bottom: -24px;
  left: -24px;
  width: 180px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 4px solid white;
  aspect-ratio: 1;
  object-fit: cover;
}

/* =============================================
   生活哲学
   ============================================= */
.philosophy {
  background: var(--color-bg-warm);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.philosophy-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.philosophy-content {
  padding: 20px 0;
}

.philosophy-quote {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--color-primary);
  line-height: 1.8;
  margin: 24px 0;
  padding-left: 20px;
  border-left: 3px solid var(--color-accent);
  font-style: italic;
}

.philosophy-text {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 2;
  margin-bottom: 16px;
}

/* =============================================
   视频区 - 核心生活场景
   ============================================= */
.videos-section {
  background: var(--color-bg);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.video-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

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

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.video-play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-primary);
  margin-left: 4px;
}

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

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.65);
  color: white;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 4px;
}

.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--color-primary);
  color: white;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.video-info {
  padding: 20px;
}

.video-category {
  font-size: 11px;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.video-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 10px;
}

.video-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

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

/* =============================================
   代表作品与故事
   ============================================= */
.stories-section {
  background: var(--color-bg-warm);
}

.stories-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.story-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.story-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.story-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.story-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.story-tag {
  font-size: 11px;
  color: var(--color-primary);
  background: rgba(139, 111, 71, 0.08);
  padding: 4px 10px;
  border-radius: 10px;
  letter-spacing: 1px;
}

.story-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 12px;
}

.story-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  flex: 1;
}

.story-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.story-date {
  font-size: 12px;
  color: var(--color-text-muted);
}

.story-link {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.story-link:hover {
  gap: 8px;
}

/* =============================================
   数据与温度
   ============================================= */
.data-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.data-item {
  padding: 20px;
}

.data-num {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: white;
  line-height: 1;
  margin-bottom: 12px;
}

.data-num span {
  font-size: 28px;
  opacity: 0.8;
}

.data-label {
  font-size: 15px;
  opacity: 0.85;
  letter-spacing: 1px;
}

.data-desc {
  font-size: 13px;
  opacity: 0.6;
  margin-top: 8px;
}

/* =============================================
   匠人与故事讲述者
   ============================================= */
.craftsmen-section {
  background: var(--color-bg);
}

.craftsmen-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.craftsman-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
  display: flex;
  gap: 28px;
  align-items: flex-start;
  transition: var(--transition);
}

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

.craftsman-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--color-border);
}

.craftsman-info {
  flex: 1;
}

.craftsman-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.craftsman-role {
  font-size: 13px;
  color: var(--color-primary);
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.craftsman-story {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* =============================================
   媒体报道
   ============================================= */
.media-section {
  background: var(--color-bg-warm);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.media-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  border-left: 4px solid var(--color-primary);
  transition: var(--transition);
}

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

.media-name {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.media-quote {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  font-style: italic;
}

.media-quote::before {
  content: '"';
  font-size: 40px;
  color: var(--color-primary-light);
  font-family: var(--font-serif);
  line-height: 0;
  vertical-align: -16px;
  margin-right: 4px;
}

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

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

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

.review-stars {
  color: #f0a500;
  font-size: 14px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 20px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.review-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

/* =============================================
   FAQ
   ============================================= */
.faq-section {
  background: var(--color-bg-warm);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 22px 28px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  transition: var(--transition);
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(139, 111, 71, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  font-size: 14px;
  color: var(--color-primary);
}

.faq-item.open .faq-icon {
  background: var(--color-primary);
  color: white;
  transform: rotate(45deg);
}

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

.faq-answer-inner {
  padding: 0 28px 22px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* =============================================
   加入我们
   ============================================= */
.join-section {
  background: var(--color-bg-section);
}

.join-inner {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.join-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
}

.join-desc {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 40px;
}

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

/* =============================================
   联系我们
   ============================================= */
.contact-section {
  background: var(--color-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.contact-info p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 32px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(139, 111, 71, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-label {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
}

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg);
  font-size: 15px;
  color: var(--color-text);
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* =============================================
   社交分享
   ============================================= */
.social-section {
  background: var(--color-bg-warm);
  padding: 60px 0;
}

.social-inner {
  text-align: center;
}

.social-title {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--color-text);
  margin-bottom: 28px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text);
}

.social-link:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.social-link.wechat:hover { border-color: #07c160; color: #07c160; }
.social-link.weibo:hover { border-color: #e6162d; color: #e6162d; }
.social-link.xiaohongshu:hover { border-color: #fe2c55; color: #fe2c55; }
.social-link.douyin:hover { border-color: #161823; color: #161823; }
.social-link.bilibili:hover { border-color: #00a1d6; color: #00a1d6; }

/* =============================================
   页脚
   ============================================= */
.footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo-mark {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
}

.footer-brand .logo-text {
  color: white;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  color: rgba(255,255,255,0.55);
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-domain {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* =============================================
   模态框 (视频播放)
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #1a1a1a;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 800px;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.modal-title {
  color: white;
  font-size: 16px;
  font-weight: 500;
}

.modal-close {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255,255,255,0.2);
}

.modal-video-wrap {
  aspect-ratio: 16/9;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-video-placeholder {
  text-align: center;
  color: rgba(255,255,255,0.5);
}

.modal-video-placeholder .play-icon {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 32px;
}

/* =============================================
   返回顶部
   ============================================= */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 16px rgba(139, 111, 71, 0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}

.back-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    display: none;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }

  .nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    gap: 4px;
  }

  .nav.open {
    display: flex;
  }

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

  .hamburger {
    display: flex;
  }

  .search-hot-tags {
    display: none;
  }

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

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

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

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-num {
    font-size: 24px;
  }
}

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

  .data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }
}

/* =============================================
   动画
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }