/* ============================================
   17C 品牌官方网站 - 主样式文件
   风格：高端低调、极简奢华、宁静高级
   配色：深灰 + 香槟金 + 纯黑
   ============================================ */

/* CSS 变量 */
:root {
  --color-black: #0a0a0a;
  --color-dark-gray: #1a1a1a;
  --color-mid-gray: #2d2d2d;
  --color-light-gray: #8a8a8a;
  --color-champagne: #c9a96e;
  --color-champagne-light: #e8d5b0;
  --color-white: #f8f6f2;
  --color-pure-white: #ffffff;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow-gold: 0 4px 24px rgba(201, 169, 110, 0.15);
  --shadow-dark: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* 全局重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--color-black);
  color: var(--color-white);
  font-family: var(--font-sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-champagne-light);
}

/* ============================================
   导航栏
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 169, 110, 0.2);
  transition: var(--transition);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-champagne);
  font-family: var(--font-serif);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav a {
  color: var(--color-white);
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 400;
  position: relative;
  padding-bottom: 4px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-champagne);
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--color-champagne);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--color-champagne);
  color: var(--color-black) !important;
  padding: 10px 24px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 2px;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-champagne-light) !important;
  color: var(--color-black) !important;
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-champagne);
  transition: var(--transition);
}

/* ============================================
   搜索框
   ============================================ */
.search-bar-wrapper {
  background: var(--color-dark-gray);
  border-bottom: 1px solid rgba(201, 169, 110, 0.1);
  padding: 12px 0;
}

.search-bar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-form {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 600px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(201, 169, 110, 0.3);
  border-radius: 2px;
  overflow: hidden;
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-white);
  font-size: 14px;
  padding: 10px 16px;
  font-family: var(--font-sans);
}

.search-input::placeholder {
  color: var(--color-light-gray);
}

.search-btn {
  background: var(--color-champagne);
  border: none;
  color: var(--color-black);
  padding: 10px 20px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.search-btn:hover {
  background: var(--color-champagne-light);
}

.search-hint {
  font-size: 12px;
  color: var(--color-light-gray);
  letter-spacing: 0.05em;
}

/* ============================================
   主内容区域
   ============================================ */
.main-content {
  margin-top: 120px;
}

/* ============================================
   Hero Banner - 品牌尊享序章
   ============================================ */
.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.5) 50%, rgba(10,10,10,0.7) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 40px;
}

.hero-label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: 24px;
  border-left: 2px solid var(--color-champagne);
  padding-left: 16px;
}

.hero-title {
  font-size: clamp(40px, 6vw, 80px);
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-pure-white);
  margin-bottom: 24px;
  max-width: 700px;
}

.hero-title span {
  color: var(--color-champagne);
}

.hero-subtitle {
  font-size: 16px;
  color: rgba(248, 246, 242, 0.7);
  max-width: 520px;
  line-height: 1.9;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--color-champagne);
  color: var(--color-black);
  padding: 16px 40px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
}

.btn-primary:hover {
  background: var(--color-champagne-light);
  color: var(--color-black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  padding: 15px 40px;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  border: 1px solid rgba(248, 246, 242, 0.4);
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
}

.btn-outline:hover {
  border-color: var(--color-champagne);
  color: var(--color-champagne);
  transform: translateY(-2px);
}

/* 统计数字 */
.hero-stats {
  display: flex;
  gap: 60px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid rgba(201, 169, 110, 0.2);
}

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

.stat-number {
  font-size: 36px;
  font-family: var(--font-serif);
  color: var(--color-champagne);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-light-gray);
}

/* ============================================
   通用区块样式
   ============================================ */
.section {
  padding: 100px 0;
}

.section-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-pure-white);
  line-height: 1.3;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 16px;
  color: rgba(248, 246, 242, 0.6);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.9;
}

.divider {
  width: 48px;
  height: 1px;
  background: var(--color-champagne);
  margin: 24px auto;
}

/* ============================================
   品牌私享服务 - Services
   ============================================ */
.services-section {
  background: var(--color-dark-gray);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.service-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
}

.service-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px 28px;
  transition: var(--transition);
}

.service-card:hover .service-card-overlay {
  background: linear-gradient(to top, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.4) 60%, rgba(10,10,10,0.1) 100%);
}

.service-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-champagne);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 16px;
}

.service-name {
  font-size: 18px;
  font-family: var(--font-serif);
  color: var(--color-pure-white);
  margin-bottom: 10px;
  font-weight: 400;
}

.service-desc {
  font-size: 13px;
  color: rgba(248, 246, 242, 0.65);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.service-card:hover .service-desc {
  max-height: 80px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-top: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition);
}

.service-card:hover .service-link {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   品牌匠心交付流程
   ============================================ */
.process-section {
  background: var(--color-black);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-champagne), transparent);
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  border: 1px solid var(--color-champagne);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-size: 18px;
  font-family: var(--font-serif);
  color: var(--color-champagne);
  background: var(--color-black);
  position: relative;
  z-index: 1;
}

.step-title {
  font-size: 16px;
  color: var(--color-pure-white);
  margin-bottom: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.step-desc {
  font-size: 13px;
  color: var(--color-light-gray);
  line-height: 1.8;
}

/* ============================================
   品牌隐奢空间 - About
   ============================================ */
.space-section {
  background: var(--color-dark-gray);
  overflow: hidden;
}

.space-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 600px;
}

.space-image {
  position: relative;
  overflow: hidden;
}

.space-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.space-content {
  padding: 80px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.space-content .section-label {
  text-align: left;
}

.space-content .section-title {
  text-align: left;
  font-size: clamp(28px, 3vw, 42px);
}

.space-content .divider {
  margin: 24px 0;
}

.space-text {
  font-size: 15px;
  color: rgba(248, 246, 242, 0.65);
  line-height: 2;
  margin-bottom: 20px;
}

.space-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.space-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feature-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-champagne);
  margin-top: 8px;
  flex-shrink: 0;
}

.feature-text {
  font-size: 14px;
  color: rgba(248, 246, 242, 0.7);
  line-height: 1.7;
}

/* ============================================
   品牌尊贵客户心语 - Reviews
   ============================================ */
.reviews-section {
  background: var(--color-black);
}

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

.review-card {
  background: var(--color-dark-gray);
  border: 1px solid rgba(201, 169, 110, 0.15);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  border-color: rgba(201, 169, 110, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.review-quote {
  font-size: 48px;
  color: var(--color-champagne);
  opacity: 0.3;
  font-family: var(--font-serif);
  line-height: 1;
  margin-bottom: 16px;
}

.review-text {
  font-size: 14px;
  color: rgba(248, 246, 242, 0.75);
  line-height: 1.9;
  margin-bottom: 24px;
  font-style: italic;
}

.review-stars {
  color: var(--color-champagne);
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

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

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-mid-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-champagne);
  font-family: var(--font-serif);
  border: 1px solid rgba(201, 169, 110, 0.3);
}

.author-info .name {
  font-size: 14px;
  color: var(--color-pure-white);
  font-weight: 500;
}

.author-info .role {
  font-size: 12px;
  color: var(--color-light-gray);
  letter-spacing: 0.05em;
}

/* ============================================
   视频推荐 - Video Cards
   ============================================ */
.video-section {
  background: var(--color-dark-gray);
}

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

.video-card {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  cursor: pointer;
  background: var(--color-mid-gray);
  transition: var(--transition);
}

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

.video-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

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

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

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .video-play-btn {
  opacity: 1;
}

.play-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(201, 169, 110, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
}

.video-card:hover .play-circle {
  transform: scale(1);
}

.play-icon {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-black);
  margin-left: 4px;
}

.video-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-champagne);
  color: var(--color-black);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: var(--color-white);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 2px;
}

.video-info {
  padding: 20px 20px 24px;
}

.video-category {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: 8px;
}

.video-title {
  font-size: 16px;
  color: var(--color-pure-white);
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 12px;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-light-gray);
}

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

/* ============================================
   品牌臻选案例
   ============================================ */
.cases-section {
  background: var(--color-black);
}

.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.case-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  cursor: pointer;
}

.case-card.featured {
  grid-row: span 2;
  aspect-ratio: auto;
}

.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-card:hover img {
  transform: scale(1.04);
}

.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  transition: var(--transition);
}

.case-tag {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: 8px;
}

.case-title {
  font-size: 20px;
  font-family: var(--font-serif);
  color: var(--color-pure-white);
  font-weight: 400;
  margin-bottom: 8px;
}

.case-desc {
  font-size: 13px;
  color: rgba(248, 246, 242, 0.6);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.case-card:hover .case-desc {
  max-height: 60px;
}

/* ============================================
   FAQ 区块
   ============================================ */
.faq-section {
  background: var(--color-dark-gray);
}

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

.faq-item {
  border-bottom: 1px solid rgba(201, 169, 110, 0.15);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--color-pure-white);
  font-size: 16px;
  font-family: var(--font-sans);
  text-align: left;
  padding: 24px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(201, 169, 110, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--color-champagne);
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-champagne);
  color: var(--color-black);
}

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

.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 14px;
  color: rgba(248, 246, 242, 0.65);
  line-height: 1.9;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

/* ============================================
   预约区块
   ============================================ */
.booking-section {
  background: var(--color-black);
  position: relative;
  overflow: hidden;
}

.booking-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 110, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.booking-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.booking-form {
  max-width: 560px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-light-gray);
}

.form-input,
.form-select,
.form-textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(201, 169, 110, 0.25);
  color: var(--color-white);
  font-size: 14px;
  padding: 12px 16px;
  font-family: var(--font-sans);
  border-radius: 2px;
  transition: var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-champagne);
  background: rgba(201, 169, 110, 0.05);
}

.form-select option {
  background: var(--color-dark-gray);
  color: var(--color-white);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  background: var(--color-champagne);
  color: var(--color-black);
  border: none;
  padding: 16px 48px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: var(--transition);
  margin-top: 8px;
}

.form-submit:hover {
  background: var(--color-champagne-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

/* ============================================
   地址与指引
   ============================================ */
.address-section {
  background: var(--color-dark-gray);
}

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

.address-card {
  text-align: center;
  padding: 40px 24px;
  border: 1px solid rgba(201, 169, 110, 0.15);
  transition: var(--transition);
}

.address-card:hover {
  border-color: rgba(201, 169, 110, 0.4);
  background: rgba(201, 169, 110, 0.03);
}

.address-icon {
  font-size: 32px;
  margin-bottom: 20px;
  display: block;
}

.address-card h3 {
  font-size: 16px;
  font-family: var(--font-serif);
  color: var(--color-champagne);
  margin-bottom: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.address-card p {
  font-size: 14px;
  color: rgba(248, 246, 242, 0.6);
  line-height: 1.8;
}

.address-card a {
  color: rgba(248, 246, 242, 0.6);
  font-size: 14px;
}

.address-card a:hover {
  color: var(--color-champagne);
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
  background: var(--color-black);
  border-top: 1px solid rgba(201, 169, 110, 0.15);
  padding: 60px 0 32px;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--color-light-gray);
  line-height: 1.9;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: 20px;
  font-weight: 500;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--color-light-gray);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-champagne);
  padding-left: 4px;
}

.footer-contact-item {
  font-size: 13px;
  color: var(--color-light-gray);
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-contact-item span:first-child {
  color: rgba(248, 246, 242, 0.4);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 12px;
  color: var(--color-light-gray);
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 12px;
  color: var(--color-light-gray);
  letter-spacing: 0.05em;
}

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

.footer-update {
  font-size: 12px;
  color: rgba(248, 246, 242, 0.35);
  letter-spacing: 0.05em;
}

/* ============================================
   移动端响应式
   ============================================ */
@media (max-width: 1200px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 900px) {
  .header-inner {
    padding: 0 20px;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10,10,10,0.98);
    flex-direction: column;
    padding: 32px 20px;
    gap: 24px;
    border-bottom: 1px solid rgba(201, 169, 110, 0.2);
  }

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

  .hamburger {
    display: flex;
  }

  .hero-stats {
    gap: 32px;
    flex-wrap: wrap;
  }

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

  .process-steps::before {
    display: none;
  }

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

  .space-content {
    padding: 48px 24px;
  }

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

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

  .case-card.featured {
    grid-row: auto;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .section-inner {
    padding: 0 20px;
  }

  .hero-content {
    padding: 60px 20px;
  }

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

  .btn-primary, .btn-outline {
    text-align: center;
    width: 100%;
  }

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

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

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

  .search-bar-inner {
    padding: 0 20px;
  }

  .search-form {
    max-width: 100%;
  }

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* ============================================
   页面专属样式
   ============================================ */
.page-hero {
  padding: 120px 0 80px;
  background: var(--color-dark-gray);
  text-align: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-light-gray);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

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

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

.breadcrumb-sep {
  color: rgba(201, 169, 110, 0.4);
}

/* 视频页面 */
.video-page-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .video-page-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .video-page-grid {
    grid-template-columns: 1fr;
  }
}

/* 联系页面 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* 服务页面 */
.services-page-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

@media (max-width: 640px) {
  .services-page-grid {
    grid-template-columns: 1fr;
  }
}

/* 关于页面 */
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.value-card {
  text-align: center;
  padding: 48px 24px;
  border: 1px solid rgba(201, 169, 110, 0.15);
  transition: var(--transition);
}

.value-card:hover {
  border-color: var(--color-champagne);
  background: rgba(201, 169, 110, 0.03);
}

.value-icon {
  font-size: 40px;
  margin-bottom: 20px;
}

.value-title {
  font-size: 18px;
  font-family: var(--font-serif);
  color: var(--color-champagne);
  margin-bottom: 12px;
  font-weight: 400;
}

.value-desc {
  font-size: 14px;
  color: rgba(248, 246, 242, 0.6);
  line-height: 1.8;
}

@media (max-width: 900px) {
  .about-values {
    grid-template-columns: 1fr;
  }
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-black);
}

::-webkit-scrollbar-thumb {
  background: var(--color-champagne);
  border-radius: 3px;
}

/* 选中文字颜色 */
::selection {
  background: rgba(201, 169, 110, 0.3);
  color: var(--color-pure-white);
}