/* ============================================
   威尼美全屋定制 - 主样式表
   主色调: 黑色 + 金色
   ============================================ */

/* CSS变量定义 */
:root {
  --color-primary: #D4AF37;        /* 金色主色 */
  --color-primary-dark: #B8960F;   /* 深金色 */
  --color-primary-light: #E8D5A3;  /* 浅金色 */
  --color-black: #1a1a1a;          /* 主黑色 */
  --color-black-light: #2d2d2d;    /* 浅黑 */
  --color-black-dark: #0a0a0a;     /* 深黑 */
  --color-white: #ffffff;
  --color-gray-light: #f5f5f5;
  --color-gray: #999999;
  --color-gray-dark: #666666;
  --font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  --font-family-en: 'Georgia', 'Times New Roman', serif;
  --transition: all 0.3s ease;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-black);
  line-height: 1.6;
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   顶部导航栏
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right:0;
  z-index: 1000;
  background-color: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 1001;
}

.logo img {
  height: 50px;
  width: auto;
  transition: var(--transition);
}

.logo img:hover {
  transform: scale(1.05);
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  color: var(--color-white);
  text-decoration: none;
  padding: 12px 20px;
  font-size: 15px;
  letter-spacing: 1px;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}

/* 下拉菜单 */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--color-white);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  border-top: 2px solid var(--color-primary);
  border-radius: 0 0 4px 4px;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 12px 24px;
  color: var(--color-black);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
  border-bottom: 1px solid #f0f0f0;
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item:hover {
  background-color: var(--color-gray-light);
  color: var(--color-primary);
  padding-left: 28px;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 30px;
  height: 30px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  margin: 3px 0;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* 联系电话栏 */
.header-contact {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--color-white);
  font-size: 14px;
}

.phone-number {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: bold;
  font-size: 18px;
}

.phone-icon {
  color: var(--color-primary);
}

/* ============================================
   Banner主视觉区
   ============================================ */
.banner-section {
  position: relative;
  margin-top: 80px;
  overflow: hidden;
}

.banner-slider {
  position: relative;
  width: 100%;
}

.banner-slide {
  position: relative;
  width: 100%;
  display: none;
}

.banner-slide.active {
  display: block;
}

.banner-slide-bg {
  width: 100%;
  height: auto;
  display: block;
}

.banner-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 70%, transparent 100%);
}

.banner-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 700px;
  padding: 0 60px;
  color: var(--color-white);
}

.banner-subtitle {
  font-size: 18px;
  letter-spacing: 4px;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 300;
  animation: fadeInUp 1s ease-out;
}

.banner-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.banner-desc {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 40px;
  color: rgba(255,255,255,0.9);
  animation: fadeInUp 1s ease-out 0.4s both;
}

.banner-buttons {
  display: flex;
  gap: 16px;
  animation: fadeInUp 1s ease-out 0.6s both;
}

/* 轮播控制 */
.banner-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 20;
}

.banner-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.banner-dot.active {
  background-color: var(--color-primary);
  width: 36px;
  border-radius: 6px;
}

.banner-arrows {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 30px;
  z-index: 20;
  pointer-events: none;
}

.banner-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--color-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: var(--transition);
  pointer-events: auto;
}

.banner-arrow:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 1px;
  border-radius: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-black);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline-gold:hover {
  background-color: var(--color-primary);
  color: var(--color-black);
  box-shadow: var(--shadow-gold);
}

/* ============================================
   板块通用样式
   ============================================ */
.section {
  padding: 100px 0;
}

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

.section-subtitle {
  font-size: 14px;
  color: var(--color-primary);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 12px;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-primary);
}

.section-desc {
  font-size: 16px;
  color: var(--color-gray-dark);
  max-width: 700px;
  margin: 24px auto 0;
  line-height: 1.8;
}

/* 深色背景板块 */
.section-dark {
  background-color: var(--color-black);
  color: var(--color-white);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-dark .section-desc {
  color: rgba(255,255,255,0.7);
}

.section-gray {
  background-color: var(--color-gray-light);
}

/* ============================================
   关于我们板块（首页）
   ============================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image:hover img {
  transform: scale(1.05);
}

.about-image::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 2px solid var(--color-primary);
  z-index: -1;
}

.about-content h3 {
  font-size: 32px;
  color: var(--color-black);
  margin-bottom: 20px;
  font-weight: 600;
}

.about-content p {
  font-size: 16px;
  color: var(--color-gray-dark);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.about-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background-color: var(--color-gray-light);
  border-radius: 4px;
  transition: var(--transition);
}

.about-feature-item:hover {
  background-color: var(--color-primary-light);
  transform: translateX(5px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 18px;
  flex-shrink: 0;
}

/* ============================================
   产品展示板块
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background-color: var(--color-white);
  box-shadow: var(--shadow);
  transition: var(--transition);
  group: true;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.product-image {
  position: relative;
  height: 280px;
  overflow: hidden;
  background-color: var(--color-gray-light);
}

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

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(212,175,55,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-overlay a {
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  padding: 10px 24px;
  border: 2px solid var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}

.product-overlay a:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.product-info {
  padding: 24px;
}

.product-category {
  font-size: 13px;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.product-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 8px;
}

.product-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ============================================
   核心优势板块
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.advantage-card {
  text-align: center;
  padding: 48px 30px;
  background-color: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  transition: var(--transition);
}

.advantage-card:hover {
  background-color: rgba(212,175,55,0.1);
  border-color: var(--color-primary);
  transform: translateY(-8px);
}

.advantage-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--color-white);
  transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
  background-color: var(--color-primary-dark);
  transform: rotateY(360deg);
}

.advantage-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-white);
}

.advantage-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}

/* ============================================
   空间展示板块
   ============================================ */
.spaces-showcase {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.space-item {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-radius: 4px;
  cursor: pointer;
}

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

.space-item:hover img {
  transform: scale(1.15);
}

.space-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px 20px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: var(--color-white);
  transform: translateY(20px);
  transition: var(--transition);
}

.space-item:hover .space-info {
  transform: translateY(0);
}

.space-name-en {
  font-size: 14px;
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: 4px;
  font-family: var(--font-family-en);
}

.space-name {
  font-size: 20px;
  font-weight: 600;
}

/* ============================================
   风格分类板块
   ============================================ */
.styles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.style-card {
  position: relative;
  height: 380px;
  overflow: hidden;
  border-radius: 4px;
  cursor: pointer;
  background-color: var(--color-gray-light);
}

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

.style-card:hover img {
  transform: scale(1.08);
}

.style-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  transition: var(--transition);
}

.style-card:hover .style-overlay {
  background: linear-gradient(180deg, transparent 20%, rgba(212,175,55,0.9) 100%);
}

.style-name {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 8px;
  transition: var(--transition);
}

.style-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
}

.style-card:hover .style-desc {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   数据统计板块
   ============================================ */
.stats-section {
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-black-light) 100%);
  padding: 80px 0;
}

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

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: 52px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1;
}

.stat-label {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  letter-spacing: 1px;
}

/* ============================================
   新闻动态板块
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background-color: var(--color-white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 35px rgba(0,0,0,0.12);
}

.news-image {
  height: 220px;
  overflow: hidden;
  background-color: var(--color-gray-light);
}

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

.news-card:hover .news-image img {
  transform: scale(1.08);
}

.news-content {
  padding: 24px;
}

.news-date {
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover .news-title {
  color: var(--color-primary);
}

.news-excerpt {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   合作伙伴/供应链板块
   ============================================ */
.partners-section {
  padding: 60px 0;
  background-color: var(--color-gray-light);
}

.partners-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
}

.partner-logo {
  width: 140px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-white);
  border-radius: 4px;
  padding: 15px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: var(--transition);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gray-dark);
}

.partner-logo:hover {
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background-color: var(--color-black-dark);
  color: var(--color-white);
  padding-top: 80px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr 1.2fr 1fr;
  gap: 24px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 38px;
  height: 38px;
  background-color: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition);
  font-size: 16px;
}

.social-icon:hover {
  background-color: var(--color-primary);
  color: var(--color-black);
}

.footer-links h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--color-white);
  position: relative;
  padding-bottom: 12px;
}

.footer-links h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 5px;
}

.footer-contact-info p {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

.contact-icon {
  color: var(--color-primary);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* 页脚 CTA 条 */
.footer-cta {
  background-color: var(--color-black);
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}

.footer-cta-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.footer-cta-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 32px 24px;
  color: var(--color-primary);
  text-decoration: none;
  border-right: 1px solid rgba(212, 175, 55, 0.15);
  transition: all 0.3s ease;
  background: var(--color-black);
}

.footer-cta-item:last-child {
  border-right: none;
}

.footer-cta-item:hover {
  background: var(--color-primary);
  color: var(--color-black);
}

.footer-cta-item:hover .footer-cta-arrow {
  transform: translateX(4px);
}

.footer-cta-icon {
  width: 48px;
  height: 48px;
  border: 1px solid currentColor;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.footer-cta-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.footer-cta-en {
  font-size: 11px;
  opacity: 0.75;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.footer-cta-arrow {
  font-size: 24px;
  margin-left: 12px;
  transition: transform 0.3s ease;
}

.footer-qr {
  text-align: center;
}

.footer-qr img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 6px;
  background: white;
  padding: 6px;
  margin-bottom: 10px;
}

.footer-qr p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

@media (max-width: 992px) {
  .footer-cta-inner {
    grid-template-columns: 1fr;
  }
  .footer-cta-item {
    border-right: none;
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  }
  .footer-cta-item:last-child {
    border-bottom: none;
  }

  .footer-main {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-cta-item {
    padding: 24px 16px;
  }

  .footer-cta-title {
    font-size: 18px;
  }
}
.page-banner {
  position: relative;
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: #1a1a1a;
}

.page-banner-bg {
  width: 100%;
  height: auto;
  display: block;
}

.page-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.55);
}

.page-banner-content {
  position: absolute;
  z-index: 10;
  text-align: center;
  color: var(--color-white);
  padding: 60px 20px;
}

.page-banner-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(255,255,255,0.7);
}

.page-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.page-breadcrumb a:hover {
  text-decoration: underline;
}

/* 面包屑分隔符 */
.breadcrumb-sep {
  color: rgba(255,255,255,0.4);
}

/* 内容区域 */
.content-section {
  padding: 80px 0;
}

/* 侧边栏布局 */
.main-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
}

.sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
}

.sidebar-menu {
  background-color: var(--color-white);
  border-radius: 4px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.sidebar-menu-title {
  background-color: var(--color-primary);
  color: var(--color-black);
  padding: 18px 24px;
  font-size: 18px;
  font-weight: 600;
}

.sidebar-menu ul {
  list-style: none;
}

.sidebar-menu li a {
  display: block;
  padding: 14px 24px;
  color: var(--color-black);
  text-decoration: none;
  border-bottom: 1px solid #f0f0f0;
  transition: var(--transition);
  font-size: 15px;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
  background-color: var(--color-gray-light);
  color: var(--color-primary);
  padding-left: 30px;
}

.sidebar-menu li:last-child a {
  border-bottom: none;
}

/* ============================================
   表单样式
   ============================================ */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-black);
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  background-color: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(212,175,55,0.15);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   返回顶部按钮
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 46px;
  height: 46px;
  background-color: var(--color-primary);
  color: var(--color-black);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-gold);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-4px);
}

/* 返回顶部按钮hover */
.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-4px);
}

/* ============================================
   图片放大查看（Lightbox）
   ============================================ */
.zoomable {
  cursor: zoom-in;
  transition: opacity 0.3s ease;
}

.zoomable:hover {
  opacity: 0.9;
}

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.92);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 40px;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 10px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
  transition: color 0.3s ease;
}

.lightbox-close:hover {
  color: var(--color-primary);
}

.lightbox-caption {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  margin-top: 16px;
  text-align: center;
  max-width: 80vw;
}

@media (max-width: 768px) {
  .lightbox {
    padding: 20px;
  }

  .lightbox-close {
    top: -40px;
    right: -10px;
    font-size: 32px;
  }

  .lightbox-caption {
    font-size: 14px;
  }
}

/* ============================================
   响应式设计
   ============================================ */

/* 平板设备 */
@media (max-width: 1024px) {
  .container {
    max-width: 95%;
  }

  .header-inner {
    height: 70px;
  }

  .logo img {
    height: 42px;
  }

  .nav-menu {
    gap: 4px;
  }

  .nav-link {
    padding: 10px 14px;
    font-size: 14px;
  }

  .banner-slider {
    height: calc(90vh - 70px);
    min-height: 450px;
  }

  .banner-title {
    font-size: 44px;
  }

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

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

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

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

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

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

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

  .page-banner-title {
    font-size: 38px;
  }

  .main-layout {
    grid-template-columns: 250px 1fr;
  }
}

/* 手机设备 */
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 32px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-black);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 80px 0;
    overflow-y: auto;
  }

  .nav-menu.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-item {
    width: 100%;
    text-align: center;
  }

  .nav-link {
    padding: 16px 30px;
    font-size: 18px;
    width: 100%;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background-color: rgba(255,255,255,0.05);
    border: none;
    border-radius: 0;
    display: none;
  }

  .nav-item.open .dropdown {
    display: block;
  }

  .dropdown-item {
    color: rgba(255,255,255,0.8);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .dropdown-item:hover {
    background-color: rgba(212,175,55,0.1);
    color: var(--color-primary);
    padding-left: 24px;
  }

  .header-contact {
    display: none;
  }

  .banner-slider {
    min-height: 400px;
  }

  .banner-content {
    padding: 0 30px;
    max-width: 100%;
  }

  .banner-title {
    font-size: 32px;
  }

  .banner-subtitle {
    font-size: 15px;
  }

  .banner-desc {
    font-size: 15px;
    display: none;
  }

  .banner-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    padding: 12px 28px;
    font-size: 14px;
    width: 100%;
    text-align: center;
  }

  .banner-arrow {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .products-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .stat-number {
    font-size: 38px;
  }

  .partners-grid {
    gap: 20px;
  }

  .partner-logo {
    width: 110px;
    height: 64px;
    font-size: 12px;
  }

  .page-banner-title {
    font-size: 28px;
  }

  .page-banner-content {
    padding: 30px 20px;
  }

  .main-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .back-to-top {
    bottom: 24px;
    right: 24px;
    width: 42px;
    height: 42px;
    font-size: 18px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .banner-title {
    font-size: 26px;
  }

  .section-title {
    font-size: 26px;
  }

  .about-content h3 {
    font-size: 24px;
  }

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

  .product-image {
    height: 220px;
  }

  .space-item {
    height: 240px;
  }

  .style-card {
    height: 280px;
  }

  .style-name {
    font-size: 19px;
  }
}