/* 全局重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
  background: #f8f9fa;
  color: #333;
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

body.dark {
  background: #1a1a2e;
  color: #e0e0e0;
}

a {
  text-decoration: none;
  color: inherit;
}

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

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

/* 滚动动画 */
.section {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 按钮基础样式 */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, #d4af37, #b8860b);
  color: #1a1a2e;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.4);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(212, 175, 55, 0.6);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: #d4af37;
  padding: 10px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  border: 2px solid #d4af37;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-outline:hover {
  background: #d4af37;
  color: #1a1a2e;
  transform: translateY(-2px);
}

/* 标题样式 */
.section-title {
  font-size: 36px;
  font-weight: 800;
  color: #1a1a2e;
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 20px;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #d4af37, #b8860b);
  border-radius: 2px;
  margin: 15px auto 0;
}

body.dark .section-title {
  color: #f0f0f0;
}

.section-desc {
  text-align: center;
  font-size: 18px;
  color: #666;
  max-width: 800px;
  margin: 0 auto 40px;
}

body.dark .section-desc {
  color: #aaa;
}

/* 头部导航 */
header {
  background: #1a1a2e;
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: background 0.3s;
}

body.dark header {
  background: #0d0d1a;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.logo svg {
  height: 50px;
  width: auto;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-list a {
  color: #e0e0e0;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color 0.3s;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #d4af37;
  transition: width 0.3s;
}

.nav-list a:hover,
.nav-list a.active {
  color: #d4af37;
}

.nav-list a:hover::after,
.nav-list a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background: #d4af37;
  margin: 5px 0;
  border-radius: 3px;
  transition: 0.3s;
}

.header-actions {
  display: flex;
  gap: 15px;
  align-items: center;
}

.search-btn,
.dark-toggle {
  background: none;
  border: none;
  color: #d4af37;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: background 0.3s;
}

.search-btn:hover,
.dark-toggle:hover {
  background: rgba(212, 175, 55, 0.2);
}

.search-box {
  background: #1a1a2e;
  padding: 15px 0;
  border-top: 1px solid rgba(212, 175, 55, 0.3);
}

.search-box .container {
  display: flex;
  gap: 10px;
}

.search-box input {
  flex: 1;
  padding: 12px 20px;
  border-radius: 30px;
  border: 2px solid #d4af37;
  background: #2d2d44;
  color: #fff;
  font-size: 16px;
  outline: none;
}

.search-box input::placeholder {
  color: #aaa;
}

.search-box button {
  padding: 12px 30px;
  background: linear-gradient(135deg, #d4af37, #b8860b);
  border: none;
  border-radius: 30px;
  color: #1a1a2e;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.3s;
}

.search-box button:hover {
  transform: scale(1.05);
}

/* 面包屑导航 */
.breadcrumb {
  padding: 20px 0;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: #888;
}

.breadcrumb li + li::before {
  content: '/';
  margin-right: 8px;
  color: #ccc;
}

.breadcrumb a {
  color: #d4af37;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: #b8860b;
}

/* Hero Banner */
.hero-banner {
  position: relative;
  overflow: hidden;
  border-radius: 0 0 30px 30px;
  margin-bottom: 30px;
}

.banner-slider {
  position: relative;
}

.slide {
  display: none;
  padding: 80px 0;
  min-height: 500px;
  align-items: center;
}

.slide.active {
  display: flex;
}

.slide-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.slide-text {
  flex: 1;
  color: #fff;
}

.slide-text h1,
.slide-text h2 {
  font-size: 48px;
  font-weight: 900;
  margin-bottom: 20px;
  line-height: 1.2;
}

.slide-text p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.9;
}

.slide-image {
  flex: 0 0 400px;
}

.slide-image svg {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

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

.banner-controls button {
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border: none;
  color: #fff;
  font-size: 28px;
  padding: 15px 20px;
  border-radius: 50%;
  cursor: pointer;
  pointer-events: all;
  transition: background 0.3s, transform 0.3s;
}

.banner-controls button:hover {
  background: rgba(212, 175, 55, 0.6);
  transform: scale(1.1);
}

.banner-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
}

.banner-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.banner-dots span.active {
  background: #d4af37;
  transform: scale(1.3);
}

/* 品牌介绍 */
.brand-intro {
  padding: 80px 0;
}

.brand-content {
  display: flex;
  gap: 50px;
  align-items: center;
}

.brand-text {
  flex: 1;
}

.brand-text p {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.8;
  color: #555;
}

body.dark .brand-text p {
  color: #ccc;
}

.brand-image {
  flex: 0 0 500px;
}

.brand-image svg {
  width: 100%;
  height: auto;
  border-radius: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

/* 企业文化 */
.culture {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .culture {
  background: #12122a;
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.culture-item {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.2);
}

body.dark .culture-item {
  background: rgba(45, 45, 68, 0.7);
}

.culture-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.culture-item svg {
  margin-bottom: 20px;
}

.culture-item h3 {
  font-size: 24px;
  margin-bottom: 15px;
  color: #1a1a2e;
}

body.dark .culture-item h3 {
  color: #f0f0f0;
}

.culture-item p {
  color: #666;
  font-size: 15px;
}

body.dark .culture-item p {
  color: #bbb;
}

/* 团队介绍 */
.team {
  padding: 80px 0;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.team-member {
  text-align: center;
  padding: 30px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .team-member {
  background: rgba(45, 45, 68, 0.5);
}

.team-member:hover {
  transform: translateY(-8px);
}

.team-member svg {
  margin-bottom: 20px;
  border-radius: 50%;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.team-member h3 {
  font-size: 22px;
  margin-bottom: 8px;
  color: #1a1a2e;
}

body.dark .team-member h3 {
  color: #f0f0f0;
}

.team-member p {
  color: #888;
  font-size: 14px;
}

/* 产品中心 */
.products {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .products {
  background: #12122a;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.product-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 30px 20px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.15);
}

body.dark .product-card {
  background: rgba(45, 45, 68, 0.7);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.product-card svg {
  width: 100%;
  height: auto;
  border-radius: 15px;
  margin-bottom: 20px;
}

.product-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: #1a1a2e;
}

body.dark .product-card h3 {
  color: #f0f0f0;
}

.product-card p {
  color: #777;
  font-size: 14px;
  margin-bottom: 20px;
}

body.dark .product-card p {
  color: #bbb;
}

/* 产品优势 */
.product-advantages {
  padding: 80px 0;
}

.advantages-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.advantage-item {
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .advantage-item {
  background: rgba(45, 45, 68, 0.5);
}

.advantage-item:hover {
  transform: translateX(8px);
}

.num {
  font-size: 48px;
  font-weight: 900;
  color: #d4af37;
  line-height: 1;
  min-width: 60px;
}

.advantage-item h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: #1a1a2e;
}

body.dark .advantage-item h3 {
  color: #f0f0f0;
}

.advantage-item p {
  color: #666;
  font-size: 15px;
}

body.dark .advantage-item p {
  color: #bbb;
}

/* 服务支持 */
.service {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .service {
  background: #12122a;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.service-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.15);
}

body.dark .service-card {
  background: rgba(45, 45, 68, 0.7);
}

.service-card:hover {
  transform: translateY(-8px);
}

.service-card svg {
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 10px;
  color: #1a1a2e;
}

body.dark .service-card h3 {
  color: #f0f0f0;
}

.service-card p {
  color: #777;
  font-size: 15px;
}

body.dark .service-card p {
  color: #bbb;
}

/* 核心优势 */
.core-advantages {
  padding: 80px 0;
}

.core-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.core-item {
  text-align: center;
  padding: 30px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .core-item {
  background: rgba(45, 45, 68, 0.5);
}

.core-item:hover {
  transform: translateY(-8px);
}

.core-item svg {
  margin-bottom: 15px;
}

.core-item h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: #1a1a2e;
}

body.dark .core-item h3 {
  color: #f0f0f0;
}

.core-item p {
  color: #666;
  font-size: 14px;
}

body.dark .core-item p {
  color: #bbb;
}

/* 解决方案 */
.solutions {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .solutions {
  background: #12122a;
}

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

.solution-list article {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 30px;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .solution-list article {
  background: rgba(45, 45, 68, 0.7);
}

.solution-list article:hover {
  transform: translateY(-5px);
}

.solution-list h3 {
  font-size: 22px;
  margin-bottom: 15px;
  color: #d4af37;
}

.solution-list p {
  color: #555;
  font-size: 15px;
  line-height: 1.7;
}

body.dark .solution-list p {
  color: #ccc;
}

/* 应用行业 */
.industries {
  padding: 60px 0;
}

.industry-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-top: 30px;
}

.industry-tags span {
  background: rgba(212, 175, 55, 0.15);
  backdrop-filter: blur(8px);
  padding: 12px 30px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  color: #1a1a2e;
  border: 1px solid rgba(212, 175, 55, 0.3);
  transition: all 0.3s;
}

body.dark .industry-tags span {
  color: #f0f0f0;
  background: rgba(212, 175, 55, 0.1);
}

.industry-tags span:hover {
  background: #d4af37;
  color: #1a1a2e;
  transform: scale(1.05);
}

/* 成功案例 */
.cases {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .cases {
  background: #12122a;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.case-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .case-card {
  background: rgba(45, 45, 68, 0.7);
}

.case-card:hover {
  transform: translateY(-8px);
}

.case-card svg {
  width: 100%;
  height: auto;
}

.case-card h3 {
  font-size: 20px;
  padding: 20px 20px 10px;
  color: #1a1a2e;
}

body.dark .case-card h3 {
  color: #f0f0f0;
}

.case-card p {
  padding: 0 20px 20px;
  color: #777;
  font-size: 14px;
}

body.dark .case-card p {
  color: #bbb;
}

/* 客户评价 */
.testimonials {
  padding: 80px 0;
}

.testimonial-slider {
  position: relative;
  max-width: 700px;
  margin: 40px auto 0;
}

.testimonial {
  display: none;
  text-align: center;
  padding: 40px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(15px);
  border-radius: 30px;
  border: 1px solid rgba(212, 175, 55, 0.2);
}

body.dark .testimonial {
  background: rgba(45, 45, 68, 0.5);
}

.testimonial.active {
  display: block;
}

.testimonial p {
  font-size: 20px;
  font-style: italic;
  color: #444;
  line-height: 1.7;
  margin-bottom: 20px;
}

body.dark .testimonial p {
  color: #ddd;
}

.testimonial cite {
  font-style: normal;
  font-weight: 600;
  color: #d4af37;
  font-size: 16px;
}

/* 新闻资讯 */
.news {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .news {
  background: #12122a;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  margin-top: 40px;
}

.news-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .news-card {
  background: rgba(45, 45, 68, 0.7);
}

.news-card:hover {
  transform: translateY(-8px);
}

.news-card svg {
  width: 100%;
  height: auto;
}

.news-card h3 {
  font-size: 18px;
  padding: 15px 15px 5px;
  color: #1a1a2e;
}

body.dark .news-card h3 {
  color: #f0f0f0;
}

.news-card time {
  display: block;
  padding: 0 15px;
  color: #aaa;
  font-size: 13px;
  margin-bottom: 8px;
}

.news-card p {
  padding: 0 15px 15px;
  color: #777;
  font-size: 14px;
}

body.dark .news-card p {
  color: #bbb;
}

.read-more {
  display: inline-block;
  margin: 0 15px 15px;
  color: #d4af37;
  font-weight: 600;
  transition: color 0.3s;
}

.read-more:hover {
  color: #b8860b;
}

/* 最新文章/推荐 */
.recommended {
  padding: 80px 0;
}

.article-list,
.hot-list,
.related-list {
  margin-top: 20px;
}

.article-list article {
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 25px;
  margin-bottom: 20px;
  transition: transform 0.3s;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .article-list article {
  background: rgba(45, 45, 68, 0.5);
}

.article-list article:hover {
  transform: translateX(8px);
}

.article-list h3 {
  font-size: 18px;
  color: #1a1a2e;
  margin-bottom: 8px;
}

body.dark .article-list h3 {
  color: #f0f0f0;
}

.article-list p {
  color: #666;
  font-size: 14px;
  margin-bottom: 10px;
}

body.dark .article-list p {
  color: #bbb;
}

.article-list a,
.hot-list a,
.related-list a {
  color: #d4af37;
  font-weight: 600;
  transition: color 0.3s;
}

.article-list a:hover,
.hot-list a:hover,
.related-list a:hover {
  color: #b8860b;
}

.hot-list,
.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.hot-list a,
.related-list a {
  background: rgba(212, 175, 55, 0.1);
  padding: 10px 25px;
  border-radius: 50px;
  font-size: 15px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  transition: all 0.3s;
}

.hot-list a:hover,
.related-list a:hover {
  background: #d4af37;
  color: #1a1a2e;
}

/* FAQ */
.faq {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .faq {
  background: #12122a;
}

.faq-list {
  max-width: 800px;
  margin: 30px auto 0;
}

.faq-item {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 15px;
  margin-bottom: 15px;
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.1);
  transition: box-shadow 0.3s;
}

body.dark .faq-item {
  background: rgba(45, 45, 68, 0.7);
}

.faq-item:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.faq-item h3 {
  padding: 20px 25px;
  font-size: 18px;
  color: #1a1a2e;
  cursor: pointer;
  position: relative;
  transition: color 0.3s;
}

body.dark .faq-item h3 {
  color: #f0f0f0;
}

.faq-item h3::after {
  content: '+';
  position: absolute;
  right: 25px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: #d4af37;
  transition: transform 0.3s;
}

.faq-item.open h3::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item div[itemprop="text"] {
  padding: 0 25px 20px;
  color: #666;
  font-size: 15px;
  line-height: 1.7;
  display: none;
}

body.dark .faq-item div[itemprop="text"] {
  color: #bbb;
}

.faq-item.open div[itemprop="text"] {
  display: block;
}

/* HowTo */
.howto {
  padding: 80px 0;
}

.howto-steps {
  margin-top: 30px;
}

.step {
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 25px;
  margin-bottom: 15px;
  border-left: 4px solid #d4af37;
  transition: transform 0.3s;
}

body.dark .step {
  background: rgba(45, 45, 68, 0.5);
}

.step:hover {
  transform: translateX(8px);
}

.step h3 {
  font-size: 18px;
  color: #d4af37;
  margin-bottom: 8px;
}

.step div {
  color: #555;
  font-size: 15px;
  line-height: 1.7;
}

body.dark .step div {
  color: #ccc;
}

/* 联系我们 */
.contact {
  padding: 80px 0;
  background: #f0f2f5;
}

body.dark .contact {
  background: #12122a;
}

.contact-info {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 30px;
  max-width: 500px;
  margin: 0 auto 30px;
  border: 1px solid rgba(212, 175, 55, 0.1);
}

body.dark .contact-info {
  background: rgba(45, 45, 68, 0.7);
}

.contact-info p {
  margin-bottom: 10px;
  font-size: 16px;
  color: #555;
}

body.dark .contact-info p {
  color: #ccc;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px 20px;
  margin-bottom: 15px;
  border-radius: 15px;
  border: 2px solid rgba(212, 175, 55, 0.3);
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  font-size: 16px;
  color: #333;
  outline: none;
  transition: border-color 0.3s;
}

body.dark .contact-form input,
body.dark .contact-form textarea {
  background: rgba(45, 45, 68, 0.5);
  color: #f0f0f0;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #d4af37;
}

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

.contact-form button {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #d4af37, #b8860b);
  border: none;
  border-radius: 50px;
  color: #1a1a2e;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.contact-form button:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
}

/* 页脚 */
.footer {
  background: #1a1a2e;
  color: #e0e0e0;
  padding: 60px 0 20px;
  position: relative;
}

body.dark .footer {
  background: #0d0d1a;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 18px;
  color: #d4af37;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: #d4af37;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  color: #aaa;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: #ccc;
  font-size: 14px;
  transition: color 0.3s, padding-left 0.3s;
}

.footer-col ul a:hover {
  color: #d4af37;
  padding-left: 5px;
}

.qr-codes {
  display: flex;
  gap: 15px;
}

.qr-codes svg {
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #888;
  margin-bottom: 8px;
}

#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #d4af37;
  color: #1a1a2e;
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
  transition: transform 0.3s, background 0.3s;
  z-index: 999;
}

#backToTop:hover {
  transform: translateY(-5px);
  background: #b8860b;
}

/* 暗色模式全局调整 */
body.dark .btn-primary {
  color: #1a1a2e;
}

body.dark .btn-outline:hover {
  color: #1a1a2e;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }
  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 0;
    background: #1a1a2e;
    padding: 20px 0;
    margin-top: 10px;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
  }
  body.dark .nav-list {
    background: #0d0d1a;
  }
  .nav-list.open {
    display: flex;
  }
  .nav-list a {
    padding: 15px 20px;
    font-size: 18px;
  }
  .menu-toggle {
    display: block;
  }
  .header-actions {
    gap: 10px;
  }
  .slide-content {
    flex-direction: column;
    text-align: center;
  }
  .slide-text h1,
  .slide-text h2 {
    font-size: 32px;
  }
  .slide-image {
    flex: 0 0 auto;
    max-width: 300px;
  }
  .brand-content {
    flex-direction: column;
  }
  .brand-image {
    flex: 0 0 auto;
  }
  .culture-grid,
  .team-grid,
  .service-grid,
  .core-grid,
  .solution-list,
  .case-grid {
    grid-template-columns: 1fr;
  }
  .product-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
  .advantages-list {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 28px;
  }
  .banner-controls button {
    padding: 10px 15px;
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .slide-text h1,
  .slide-text h2 {
    font-size: 24px;
  }
  .slide-text p {
    font-size: 16px;
  }
  .btn-primary {
    padding: 12px 28px;
    font-size: 14px;
  }
  .container {
    padding: 0 15px;
  }
  .hero-banner {
    border-radius: 0;
  }
  .slide {
    padding: 50px 0;
    min-height: 400px;
  }
  .slide-image {
    max-width: 200px;
  }
  .brand-image svg {
    max-width: 100%;
  }
  .culture-item,
  .team-member,
  .service-card,
  .core-item {
    padding: 25px 20px;
  }
  .faq-item h3 {
    font-size: 16px;
    padding: 15px 20px;
  }
  .contact-info {
    padding: 20px;
  }
  #backToTop {
    width: 40px;
    height: 40px;
    bottom: 20px;
    right: 20px;
  }
}