/* 齐观设计 - 完整样式表 */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  line-height: 1.6;
  color: #2D2D2D;
  background: #fff;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 20px 0;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  padding: 12px 0;
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: #C41E3A;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: transform 0.3s ease;
}

.navbar-logo:hover .logo-icon {
  transform: scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text-main {
  font-size: 16px;
  font-weight: 600;
  transition: color 0.3s ease;
}

.logo-text-sub {
  font-size: 11px;
  opacity: 0.7;
  transition: color 0.3s ease;
}

.navbar.scrolled .logo-text-main,
.navbar.scrolled .logo-text-sub {
  color: #2D2D2D;
}

.navbar:not(.scrolled) .logo-text-main,
.navbar:not(.scrolled) .logo-text-sub {
  color: white;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s ease;
}

.navbar.scrolled .nav-link {
  color: #2D2D2D;
}

.navbar:not(.scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.9);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #C41E3A;
  transition: width 0.3s ease;
}

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

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
  color: #C41E3A;
}

.navbar:not(.scrolled) .nav-link:hover,
.navbar:not(.scrolled) .nav-link.active {
  color: white;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.phone-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar.scrolled .phone-link {
  color: #2D2D2D;
}

.navbar:not(.scrolled) .phone-link {
  color: white;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #C41E3A;
  color: white;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: #8B0000;
}

.mobile-menu-btn {
  display: none;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar.scrolled .mobile-menu-btn {
  color: #2D2D2D;
}

.navbar:not(.scrolled) .mobile-menu-btn {
  color: white;
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: white;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu .nav-link {
  font-size: 24px;
  color: #2D2D2D !important;
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  color: #2D2D2D;
}

/* ===== Hero区域 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #2D2D2D;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(45, 45, 45, 0.95) 0%, rgba(45, 45, 45, 0.7) 50%, rgba(45, 45, 45, 0.4) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 120px 24px 80px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(196, 30, 58, 0.2);
  border: 1px solid rgba(196, 30, 58, 0.3);
  border-radius: 100px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.hero-tag svg {
  color: #C41E3A;
}

.hero-title {
  font-size: clamp(40px, 8vw, 80px);
  font-weight: 700;
  color: white;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title .char {
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 22px);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-subtitle .highlight {
  color: #FF6B6B;
  font-weight: 600;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  max-width: 500px;
}

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

.stat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.stat-icon {
  width: 20px;
  height: 20px;
  color: #C41E3A;
}

.stat-number {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: white;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.hero-gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 150px;
  background: linear-gradient(to top, white 0%, transparent 100%);
  z-index: 5;
}

/* ===== 服务区域 ===== */
.services {
  padding: 100px 24px;
  background: white;
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: #C41E3A;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 18px;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

.services-grid {
  display: flex;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  flex: 1;
  min-height: 380px;
  background: #F5F5F5;
  border-radius: 20px;
  padding: 32px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  flex: 2;
  background: #2D2D2D;
}

.service-card:hover .service-icon-wrapper {
  background: #C41E3A;
}

.service-card:hover .service-icon {
  color: white;
}

.service-card:hover .service-title {
  color: white;
}

.service-card:hover .service-subtitle {
  color: #FF6B6B;
}

.service-card:hover .service-desc {
  color: rgba(255, 255, 255, 0.8);
}

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

.service-icon-wrapper {
  width: 56px;
  height: 56px;
  background: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all 0.3s ease;
}

.service-icon {
  width: 28px;
  height: 28px;
  color: #C41E3A;
  transition: all 0.3s ease;
}

.service-title {
  font-size: 24px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 4px;
  transition: color 0.3s ease;
}

.service-subtitle {
  font-size: 13px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  transition: color 0.3s ease;
}

.service-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 24px;
  transition: color 0.3s ease;
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.service-feature-tag {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
}

.services-cta {
  text-align: center;
  margin-top: 48px;
}

.services-cta p {
  color: #666;
  margin-bottom: 16px;
}

/* ===== 案例区域 ===== */
.works {
  padding: 100px 24px;
  background: #F5F5F5;
}

.works-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: white;
  border: none;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-tab:hover {
  background: rgba(196, 30, 58, 0.1);
}

.filter-tab.active {
  background: #C41E3A;
  color: white;
}

.works-filter-tags {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.filter-tag {
  padding: 8px 16px;
  background: white;
  border: none;
  border-radius: 100px;
  font-size: 13px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-tag:hover {
  background: rgba(45, 45, 45, 0.1);
}

.filter-tag.active {
  background: #2D2D2D;
  color: white;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1400px;
  margin: 0 auto 48px;
}

.work-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.work-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.work-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.work-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(45, 45, 45, 0.8) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.work-view-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  background: #C41E3A;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
}

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

.work-view-btn svg {
  width: 24px;
  height: 24px;
  color: white;
}

.work-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 6px 12px;
  background: #C41E3A;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  color: white;
}

.work-content {
  padding: 20px;
}

.work-client {
  font-size: 12px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.work-title {
  font-size: 16px;
  font-weight: 600;
  color: #2D2D2D;
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.work-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: #C41E3A;
  opacity: 0;
  transition: all 0.3s ease;
}

.work-card:hover .work-link {
  opacity: 1;
}

.works-more {
  text-align: center;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  border: 2px solid #2D2D2D;
  color: #2D2D2D;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background: #2D2D2D;
  color: white;
}

/* ===== 客户区域 ===== */
.clients {
  padding: 100px 24px;
  background: white;
}

.clients-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 40px 24px;
  background: #F5F5F5;
  border-radius: 16px;
}

.stat-card-number {
  font-size: 48px;
  font-weight: 700;
  color: #C41E3A;
  margin-bottom: 8px;
}

.stat-card-label {
  font-size: 14px;
  color: #666;
}

/* ===== 新闻区域 ===== */
.news {
  padding: 100px 24px;
  background: white;
}

.news-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.news-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: #F5F5F5;
  border: none;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
}

.news-tab:hover {
  background: #E5E5E5;
}

.news-tab.active {
  background: #C41E3A;
  color: white;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto 32px;
}

.news-card {
  background: white;
  border: 1px solid #E5E5E5;
  border-radius: 16px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.news-card:hover {
  border-color: #C41E3A;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.news-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.news-card-category {
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}

.news-card-category.company {
  background: rgba(196, 30, 58, 0.1);
  color: #C41E3A;
}

.news-card-category.industry {
  background: rgba(45, 45, 45, 0.1);
  color: #2D2D2D;
}

.news-card-category.library {
  background: rgba(139, 0, 0, 0.1);
  color: #8B0000;
}

.news-card-date {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #999;
}

.news-card-title {
  font-size: 17px;
  font-weight: 600;
  color: #2D2D2D;
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-card-title {
  color: #C41E3A;
}

.news-card-excerpt {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: #C41E3A;
}

.news-more {
  text-align: center;
}

/* ===== 关于区域 ===== */
.about {
  padding: 100px 24px;
  background: #C41E3A;
  position: relative;
  overflow: hidden;
}

.about::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: rgba(139, 0, 0, 0.2);
  border-radius: 50%;
}

.about::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: rgba(255, 107, 107, 0.1);
  border-radius: 50%;
}

.about-card {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  background: white;
  border-radius: 32px;
  padding: 64px;
}

.about-header {
  text-align: center;
  margin-bottom: 48px;
}

.about-title-wrapper {
  position: relative;
  display: inline-block;
}

.about-title-underline {
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 4px;
  background: #C41E3A;
}

.about-intro {
  font-size: 20px;
  color: #666;
  text-align: center;
  max-width: 700px;
  margin: 0 auto 24px;
  line-height: 1.8;
}

.about-intro .highlight {
  color: #C41E3A;
  font-weight: 600;
}

.about-desc {
  font-size: 15px;
  color: #666;
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.about-feature {
  padding: 32px 24px;
  background: #F5F5F5;
  border-radius: 16px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.about-feature:hover {
  background: #C41E3A;
}

.about-feature:hover .about-feature-icon {
  color: white;
}

.about-feature:hover .about-feature-title {
  color: white;
}

.about-feature:hover .about-feature-desc {
  color: rgba(255, 255, 255, 0.8);
}

.about-feature-icon {
  width: 32px;
  height: 32px;
  color: #C41E3A;
  margin: 0 auto 16px;
  transition: color 0.3s ease;
}

.about-feature-title {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.about-feature-desc {
  font-size: 13px;
  color: #999;
  line-height: 1.5;
  transition: color 0.3s ease;
}

.about-process {
  text-align: center;
}

.about-process-title {
  font-size: 20px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 32px;
}

.process-steps {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.process-step {
  display: flex;
  align-items: center;
  gap: 12px;
}

.process-step-number {
  width: 36px;
  height: 36px;
  background: #C41E3A;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: white;
}

.process-step-label {
  font-size: 15px;
  font-weight: 500;
  color: #2D2D2D;
}

.process-step-line {
  width: 32px;
  height: 2px;
  background: rgba(196, 30, 58, 0.3);
}

/* ===== 联系区域 ===== */
.contact {
  padding: 100px 24px;
  background: #F5F5F5;
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
}

.contact-image {
  position: relative;
  height: 300px;
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 40px;
}

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

.contact-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(45, 45, 45, 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
}

.contact-image-title {
  font-size: 28px;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.contact-image-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: white;
  border-radius: 16px;
  transition: all 0.3s ease;
}

.contact-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.contact-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-card-icon.wechat {
  background: rgba(34, 197, 94, 0.1);
}

.contact-card-icon.wechat svg {
  color: #22C55E;
}

.contact-card-icon.phone {
  background: rgba(196, 30, 58, 0.1);
}

.contact-card-icon.phone svg {
  color: #C41E3A;
}

.contact-card-icon.phone-alt {
  background: rgba(196, 30, 58, 0.1);
  border: 1px solid rgba(196, 30, 58, 0.2);
}

.contact-card-icon.phone-alt svg {
  color: #C41E3A;
}

.contact-card-content {
  flex: 1;
}

.contact-card-label {
  font-size: 13px;
  color: #999;
  margin-bottom: 4px;
}

.contact-card-label.highlight {
  color: #C41E3A;
  font-weight: 500;
}

.contact-card-value {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
}

.contact-card-btn {
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.contact-card-btn.wechat {
  background: #22C55E;
  color: white;
}

.contact-card-btn.wechat:hover {
  background: #16A34A;
}

.contact-card-btn.phone {
  background: #C41E3A;
  color: white;
}

.contact-card-btn.phone:hover {
  background: #8B0000;
}

.contact-cards-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ===== 页脚 ===== */
.footer {
  background: #2D2D2D;
  color: white;
}

.footer-main {
  padding: 80px 24px;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-brand-icon {
  width: 48px;
  height: 48px;
  background: #C41E3A;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: white;
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 600;
}

.footer-brand-en {
  font-size: 11px;
  opacity: 0.6;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.3s ease;
}

.footer-contact-item:hover {
  color: #C41E3A;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
}

.footer-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: #C41E3A;
  transition: width 0.3s ease;
}

.footer-link:hover {
  color: #C41E3A;
}

.footer-link:hover::after {
  width: 100%;
}

.footer-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-keyword {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
}

.footer-keyword:hover {
  background: rgba(196, 30, 58, 0.2);
  color: #C41E3A;
}

.footer-bottom {
  padding: 32px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-copyright {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-disclaimer {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
  max-width: 800px;
}

.footer-links-row {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-bottom-link {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  transition: color 0.3s ease;
}

.footer-bottom-link:hover {
  color: #C41E3A;
}

/* ===== 浮动联系按钮 ===== */
.floating-contact {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
}

.floating-btn {
  width: 56px;
  height: 56px;
  background: #C41E3A;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(196, 30, 58, 0.4);
  transition: all 0.3s ease;
}

.floating-btn:hover {
  transform: scale(1.1);
  background: #8B0000;
}

.floating-btn svg {
  width: 24px;
  height: 24px;
  color: white;
}

/* ===== 弹窗 ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

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

.modal-content {
  background: white;
  border-radius: 24px;
  max-width: 1080px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  position: relative;
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

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

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.7);
}

.modal-close svg {
  width: 20px;
  height: 20px;
  color: white;
}

.modal-body {
  max-height: 90vh;
  overflow-y: auto;
}

/* 案例详情弹窗 */
.case-detail-header {
  padding: 40px;
  border-bottom: 1px solid #E5E5E5;
}

.case-detail-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.case-detail-tag {
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}

.case-detail-tag.industry {
  background: rgba(196, 30, 58, 0.1);
  color: #C41E3A;
}

.case-detail-tag.service {
  background: #F5F5F5;
  color: #666;
}

.case-detail-title {
  font-size: 28px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 8px;
}

.case-detail-client {
  font-size: 15px;
  color: #666;
}

.case-detail-section {
  padding: 32px 40px;
  border-bottom: 1px solid #E5E5E5;
}

.case-detail-section-title {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 16px;
}

.case-detail-desc {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
}

.case-detail-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-detail-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: #666;
}

.case-detail-list-item::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #C41E3A;
  border-radius: 50%;
}

.case-detail-gallery {
  padding: 32px 40px;
  background: #F5F5F5;
}

.case-detail-image {
  width: 100%;
  border-radius: 16px;
  margin-bottom: 16px;
}

.case-detail-cta {
  padding: 32px 40px;
  text-align: center;
}

/* PDF弹窗 */
.pdf-preview {
  padding: 40px;
}

.pdf-header {
  text-align: center;
  margin-bottom: 40px;
}

.pdf-logo {
  width: 80px;
  height: 80px;
  background: #C41E3A;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 36px;
  font-weight: 700;
  color: white;
}

.pdf-title {
  font-size: 32px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 8px;
}

.pdf-subtitle {
  font-size: 18px;
  color: #666;
  margin-bottom: 8px;
}

.pdf-desc {
  font-size: 14px;
  color: #999;
}

.pdf-section {
  background: #F5F5F5;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 24px;
}

.pdf-section-title {
  font-size: 20px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 24px;
}

.pdf-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.pdf-stat {
  background: white;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.pdf-stat-number {
  font-size: 32px;
  font-weight: 700;
  color: #C41E3A;
  margin-bottom: 8px;
}

.pdf-stat-label {
  font-size: 13px;
  color: #666;
}

.pdf-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  max-height: 300px;
  overflow-y: auto;
}

.pdf-preview-item {
  border-radius: 12px;
  overflow: hidden;
}

.pdf-preview-item img {
  width: 100%;
  height: 120px;
  object-fit: cover;
}

.pdf-preview-item-title {
  padding: 12px;
  font-size: 12px;
  color: #666;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pdf-cta {
  background: #C41E3A;
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  color: white;
}

.pdf-cta-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.pdf-cta-phone {
  font-size: 18px;
  margin-bottom: 8px;
}

.pdf-cta-desc {
  font-size: 14px;
  opacity: 0.8;
}

/* ===== 页面头部 ===== */
.page-header {
  padding: 160px 24px 80px;
  background: linear-gradient(135deg, #2D2D2D 0%, #1a1a1a 100%);
  text-align: center;
}

.page-header-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.page-header-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 内容区域 ===== */
.content-section {
  padding: 80px 24px;
}

.content-section.alt {
  background: #F5F5F5;
}

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

/* ===== 关于页面 ===== */
.about-intro-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.about-intro-content h2 {
  font-size: 36px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 24px;
}

.about-intro-content p {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-intro-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.about-intro-image img {
  width: 100%;
  height: auto;
}

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

.about-stat-card {
  background: white;
  border-radius: 20px;
  padding: 40px 24px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.about-stat-number {
  font-size: 48px;
  font-weight: 700;
  color: #C41E3A;
  margin-bottom: 8px;
}

.about-stat-label {
  font-size: 14px;
  color: #666;
}

/* ===== 服务页面 ===== */
.service-detail-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  margin-bottom: 32px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.service-detail-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.service-detail-icon {
  width: 72px;
  height: 72px;
  background: rgba(196, 30, 58, 0.1);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-icon svg {
  width: 36px;
  height: 36px;
  color: #C41E3A;
}

.service-detail-title-wrapper h3 {
  font-size: 28px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 4px;
}

.service-detail-title-wrapper p {
  font-size: 14px;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.service-detail-content h4 {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 16px;
}

.service-detail-content p {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 24px;
}

.service-detail-list {
  list-style: none;
}

.service-detail-list li {
  padding: 12px 0;
  padding-left: 28px;
  position: relative;
  font-size: 15px;
  color: #666;
  border-bottom: 1px solid #F0F0F0;
}

.service-detail-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #C41E3A;
  font-weight: bold;
}

.service-detail-image-wrapper {
  border-radius: 16px;
  overflow: hidden;
}

.service-detail-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 案例页面 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.case-item {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.case-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.case-item-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

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

.case-item-tags {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 8px;
}

.case-item-tag {
  padding: 6px 12px;
  background: #C41E3A;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  color: white;
}

.case-item-content {
  padding: 24px;
}

.case-item-title {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 8px;
}

.case-item-client {
  font-size: 14px;
  color: #999;
}

/* 案例详情页 */
.case-hero {
  padding: 140px 24px 60px;
  background: linear-gradient(135deg, #2D2D2D 0%, #1a1a1a 100%);
  text-align: center;
}

.case-hero-tags {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.case-hero-tag {
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.case-hero-title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.case-hero-client {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
}

.case-content {
  padding: 60px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.case-description {
  font-size: 18px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 48px;
}

.case-gallery {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-gallery img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* ===== 新闻页面 ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-list-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  padding: 32px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.news-list-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.news-list-image {
  height: 180px;
  border-radius: 12px;
  overflow: hidden;
}

.news-list-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.news-list-item:hover .news-list-image img {
  transform: scale(1.05);
}

.news-list-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-list-header {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

.news-list-title {
  font-size: 22px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-list-item:hover .news-list-title {
  color: #C41E3A;
}

.news-list-excerpt {
  font-size: 15px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 16px;
}

/* 新闻详情页 */
.news-hero {
  padding: 140px 24px 60px;
  background: linear-gradient(135deg, #2D2D2D 0%, #1a1a1a 100%);
  text-align: center;
}

.news-hero-title {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700;
  color: white;
  margin-bottom: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.news-hero-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.news-hero-meta span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.news-detail-content {
  padding: 60px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.news-detail-body {
  font-size: 16px;
  line-height: 1.8;
  color: #444;
}

.news-detail-body p {
  margin-bottom: 24px;
}

.news-detail-body h2 {
  font-size: 24px;
  font-weight: 600;
  color: #2D2D2D;
  margin: 48px 0 24px;
}

.news-detail-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: #2D2D2D;
  margin: 32px 0 16px;
}

.news-detail-body ul {
  margin-bottom: 24px;
  padding-left: 24px;
}

.news-detail-body li {
  margin-bottom: 8px;
}

/* ===== 联系页面 ===== */
.contact-page {
  padding: 140px 24px 80px;
  background: #F5F5F5;
}

.contact-page-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-page-info h2 {
  font-size: 36px;
  font-weight: 700;
  color: #2D2D2D;
  margin-bottom: 24px;
}

.contact-page-info > p {
  font-size: 16px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 48px;
}

.contact-page-details {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-page-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.contact-page-icon {
  width: 56px;
  height: 56px;
  background: rgba(196, 30, 58, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-page-icon svg {
  width: 28px;
  height: 28px;
  color: #C41E3A;
}

.contact-page-item-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 8px;
}

.contact-page-item-content p,
.contact-page-item-content a {
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.contact-page-form-wrapper {
  background: white;
  border-radius: 24px;
  padding: 48px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.contact-page-form-wrapper h3 {
  font-size: 24px;
  font-weight: 600;
  color: #2D2D2D;
  margin-bottom: 32px;
}

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #2D2D2D;
  margin-bottom: 8px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #E5E5E5;
  border-radius: 12px;
  font-size: 15px;
  font-family: inherit;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: #C41E3A;
  box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

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

.form-submit {
  width: 100%;
  padding: 16px;
  background: #C41E3A;
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-submit:hover {
  background: #8B0000;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
  .about-intro-section {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .about-intro-image {
    order: -1;
  }
  
  .service-detail-grid {
    grid-template-columns: 1fr;
  }
  
  .service-detail-image-wrapper {
    order: -1;
    height: 300px;
  }
}

@media (max-width: 992px) {
  .navbar-menu,
  .navbar-actions .phone-link,
  .navbar-actions .btn-primary {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .services-grid {
    flex-direction: column;
  }
  
  .service-card {
    min-height: auto;
    padding: 24px;
  }
  
  .service-card:hover {
    flex: 1;
  }
  
  .service-features {
    opacity: 1;
    transform: none;
    margin-top: 16px;
  }
  
  .service-feature-tag {
    background: rgba(45, 45, 45, 0.1);
    color: #2D2D2D;
  }
  
  .clients-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-card {
    padding: 40px 24px;
  }
  
  .about-features {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .news-list-item {
    grid-template-columns: 1fr;
  }
  
  .news-list-image {
    height: 200px;
  }
  
  .contact-page-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-page-form-wrapper {
    order: 0;
  }
  
  .contact-cards-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .work-image {
    height: 140px;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .process-step-line {
    display: none;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
  }
  
  .service-detail-card {
    padding: 32px 24px;
  }
  
  .service-detail-header {
    flex-direction: column;
    text-align: center;
  }
  
  .contact-page-form-wrapper {
    padding: 32px 24px;
  }
  
  .modal-content {
    margin: 16px;
    max-height: calc(100vh - 32px);
  }
  
  .case-detail-header,
  .case-detail-section,
  .case-detail-gallery,
  .case-detail-cta {
    padding: 24px;
  }
  
  .pdf-preview {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .works-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn-secondary {
    justify-content: center;
  }
  
  .works-filter-tabs,
  .works-filter-tags,
  .news-tabs {
    gap: 8px;
  }
  
  .filter-tab,
  .news-tab {
    padding: 10px 16px;
    font-size: 13px;
  }
  
  .filter-tag {
    padding: 6px 12px;
    font-size: 12px;
  }
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #F5F5F5;
}

::-webkit-scrollbar-thumb {
  background: #C41E3A;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #8B0000;
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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