/* ===== 基础变量 ===== */
:root {
  --primary: #0f8a5f;
  --primary-dark: #0a6b4a;
  --primary-light: #e6f5ef;
  --accent: #f59e0b;
  --dark: #0f172a;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1280px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 顶部公告条 ===== */
.top-bar {
  position: relative;
  z-index: 1001;
  background: var(--dark);
  color: var(--white);
  font-size: 13px;
  padding: 8px 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar a {
  color: var(--accent);
  margin-left: 4px;
}

.top-bar .lang-switch {
  display: flex;
  align-items: center;
}

/* 语言下拉菜单 */
.lang-dropdown {
  position: relative;
}

.lang-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: white;
  font: inherit;
  cursor: pointer;
  padding: 4px 2px;
  transition: var(--transition);
}

.lang-dropdown-toggle:hover {
  color: var(--accent);
}

.lang-dropdown-toggle .fa-chevron-down {
  font-size: 10px;
  transition: transform 0.25s;
}

.lang-dropdown:hover .fa-chevron-down,
.lang-dropdown.open .fa-chevron-down {
  transform: rotate(180deg);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 160px;
  background: white;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 1000;
}

.lang-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

.lang-dropdown:hover .lang-dropdown-menu,
.lang-dropdown.open .lang-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown-menu a,
.lang-dropdown-menu span {
  display: block;
  padding: 9px 20px;
  font-size: 13px;
  color: var(--dark);
  margin-left: 0;
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}

.lang-dropdown-menu a:hover {
  background: var(--gray-50);
  color: var(--primary);
}

.lang-dropdown-menu span.active {
  color: var(--primary);
  font-weight: 600;
  cursor: default;
}

[dir='rtl'] .lang-dropdown-menu {
  right: auto;
  left: 0;
}

.top-bar .lang-switch span {
  cursor: pointer;
  opacity: 0.7;
  transition: var(--transition);
}

.top-bar .lang-switch span.active,
.top-bar .lang-switch span:hover {
  opacity: 1;
  color: var(--accent);
}

/* ===== 主导航 ===== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
}

.main-logo {
  height: var(--header-height);
  display: flex;
  align-items: center;
  background-color: var(--grey-color);
  padding: 15px;
  margin-right: 35px;
  transition: 0.5s all ease-out;
  width: 150px;
  position: absolute;
  z-index: 1;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: 8px;
  transition: var(--transition);
}

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

.nav-link i {
  font-size: 12px;
  transition: transform 0.3s;
}

.nav-item:hover .nav-link i {
  transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--gray-700);
  transition: var(--transition);
}

.dropdown a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.dropdown a i {
  color: var(--primary);
  width: 20px;
  text-align: center;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

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

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
}

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

.btn-white:hover {
  background: var(--gray-100);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 10px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--gray-700);
  cursor: pointer;
}

/* ===== Hero 区域 ===== */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  background: var(--dark);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../images/main-banner10.webp") center/cover;
  opacity: 0.4;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  color: white;
}

/* ===== 首页滚动大图轮播 ===== */
.hero-slider {
  position: relative;
  height: 820px;
  overflow: hidden;
}

.slider-slides {
  display: flex;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide {
  position: relative;
  flex: 0 0 100%;
  height: 100%;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: transparent;
}

.slide-content {
  position: relative;
  z-index: 2;
  color: white;
  padding: 120px 0 100px;
  width: 100%;
}

.slide-content h1 {
  font-size: 56px;
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 24px;
  color: white;
}

.slide-content h1 span {
  color: var(--accent);
}

.slide-content .hero-desc {
  font-size: 18px;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 560px;
  color: white;
}

.slider-controls {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 20px;
  z-index: 10;
}

.slider-prev,
.slider-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.slider-prev:hover,
.slider-next:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.slider-dots {
  display: flex;
  gap: 10px;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.slider-dot.active,
.slider-dot:hover {
  background: var(--accent);
  transform: scale(1.2);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
  font-size: 56px;
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--accent);
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 560px;
}

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

.hero-stats {
  position: relative;
  z-index: 2;
  margin-top: 64px;
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero-stat {
  color: white;
}

.hero-stat .number {
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
}

.hero-stat .number span {
  color: var(--accent);
}

.hero-stat .label {
  font-size: 14px;
  opacity: 0.85;
  margin-top: 8px;
}

/* ===== 通用标题 ===== */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--gray-500);
}

.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--gray-100);
}

/* ===== 优势特色 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--primary-light);
  display: grid;
  place-items: center;
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}

.feature-card p {
  font-size: 15px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== 首页关于我们卡片 ===== */
.home-about-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.home-about-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.home-about-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.home-about-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--primary-light);
  display: grid;
  place-items: center;
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 20px;
}

.home-about-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}

.home-about-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

/* ===== 解决方案 ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.solution-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 420px;
  box-shadow: var(--shadow);
}

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

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

.solution-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  color: white;
}

.solution-overlay h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}

.solution-overlay p {
  font-size: 15px;
  opacity: 0.9;
  margin-bottom: 20px;
}

.solution-overlay .btn {
  align-self: flex-start;
}

/* ===== 产品展示 ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

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

.product-image {
  height: 220px;
  background: var(--gray-100);
  display: grid;
  place-items: center;
  font-size: 72px;
  color: var(--primary);
}

.product-info {
  padding: 24px;
}

.product-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.product-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark);
}

.product-info p {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
  line-height: 1.6;
}

.product-specs {
  display: flex;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-100);
}

.product-spec {
  text-align: center;
}

.product-spec .value {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.product-spec .name {
  font-size: 12px;
  color: var(--gray-500);
}

/* ===== 案例展示 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 320px;
}

.case-card:nth-child(even) .case-image {
  order: 2;
}

.case-image {
  min-height: 320px;
}

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

.case-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.case-detail-title {
  grid-column: 1 / -1;
  margin-bottom: 8px;
}

.case-detail-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
}

.case-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.case-detail-image img {
  width: 100%;
  height: auto;
  display: block;
}

.case-detail-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-detail-content h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--dark);
  line-height: 1.3;
}

.case-detail-content p {
  font-size: 15px;
  color: var(--gray-500);
  margin-bottom: 20px;
  line-height: 1.8;
}

.case-detail-content .case-stats {
  margin-bottom: 28px;
}

.case-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.case-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--dark);
}

.case-content p {
  font-size: 15px;
  color: var(--gray-500);
  margin-bottom: 24px;
  line-height: 1.7;
}

.case-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}

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

.case-stat .value {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.case-stat .label {
  font-size: 12px;
  color: var(--gray-500);
}

/* ===== 服务流程 ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 28px 16px;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 52px;
  right: -18px;
  width: 36px;
  height: 2px;
  background: var(--primary-light);
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 700;
  margin: 0 auto 16px;
  position: relative;
  z-index: 1;
}

.process-step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark);
}

.process-step p {
  font-size: 13px;
  color: var(--gray-500);
}

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/main-banner10.webp") center/cover;
  opacity: 0.15;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.news-carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
}

.news-carousel-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  padding: 8px 4px 24px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.news-carousel-track::-webkit-scrollbar {
  display: none;
}

.news-carousel-card {
  flex: 0 0 260px;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  scroll-snap-align: start;
  transition: var(--transition);
}

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

.news-carousel-image {
  width: 100%;
  height: 160px;
  overflow: hidden;
}

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

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

.news-carousel-content {
  padding: 18px;
}

.news-carousel-content .news-date {
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.news-carousel-content h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-carousel-prev,
.news-carousel-next {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
  display: grid;
  place-items: center;
  font-size: 16px;
}

.news-carousel-prev:hover,
.news-carousel-next:hover {
  background: var(--primary);
  color: white;
}

@media (max-width: 768px) {
  .news-carousel-card {
    flex: 0 0 200px;
  }

  .news-carousel-prev,
  .news-carousel-next {
    display: none;
  }
}

/* ===== 新闻列表页面 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.news-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

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

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination .page-link {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: white;
  color: var(--dark);
  border: 1px solid var(--gray-200);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.pagination .page-link:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.pagination .page-link.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.news-card .news-image {
  width: 100%;
  height: 100%;
  min-height: 200px;
  overflow: hidden;
}

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

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

.news-card .news-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-card .news-content .news-date {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.news-card .news-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-card .news-content p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 16px;
}

.news-card .news-content .btn {
  align-self: flex-start;
}

/* ===== 产品网格列表 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-grid-compact {
  gap: 16px;
}

.product-grid-compact .product-grid-card {
  transform: scale(1);
}

.product-grid-compact .product-grid-image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
}

.product-grid-compact .product-grid-image img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-grid-compact .product-grid-content {
  padding: 16px;
}

.product-grid-compact .product-grid-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
  text-align:center;
}

.product-grid-compact .product-grid-desc {
  font-size: 13px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.product-grid-compact .btn {
  padding: 8px 14px;
  font-size: 13px;
}

.product-grid-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-grid-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-grid-image {
  width: 100%;
  height: 280px;
  overflow: hidden;
}

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

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

.product-grid-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-grid-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.product-grid-desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.product-grid-specs {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  border-top: 1px solid var(--gray-100);
  padding-top: 16px;
}

.product-grid-specs li {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--gray-500);
}

.product-grid-specs li strong {
  color: var(--dark);
  font-weight: 600;
}

/* ===== 产品颜色/款式切换 ===== */
.product-color-section {
  margin-top: 48px;
}

.product-color-section h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 24px;
}

.product-color-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.product-color-item {
  width: 120px;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.product-color-item:hover,
.product-color-item.active {
  transform: translateY(-4px);
}

.product-color-thumb {
  width: 120px;
  height: 120px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid transparent;
  box-shadow: var(--shadow);
  transition: var(--transition);
  margin-bottom: 8px;
}

.product-color-item:hover .product-color-thumb,
.product-color-item.active .product-color-thumb {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.product-color-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-color-name {
  font-size: 13px;
  color: var(--gray-700);
  font-weight: 500;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--dark);
  color: white;
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 50px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 2.1;
  margin-bottom: 48px;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: grid;
  place-items: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
}

.footer-column h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

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

.footer-column ul li a {
  font-size: 14px;
  color: var(--gray-300);
  transition: var(--transition);
}

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

.footer-contact p {
  font-size: 14px;
  color: var(--gray-300);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--gray-300);
}

/* ===== 内页通用 ===== */
.page-banner {
  position: relative;
  padding: 140px 0 100px;
  background: var(--dark);
  color: white;
  text-align: center;
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background: url("../images/main-banner10.webp") center/cover;
  opacity: 0.35;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-banner p {
  font-size: 18px;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 12px;
  font-size: 14px;
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb span {
  color: var(--accent);
}

/* ===== 关于我们页面 ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-intro-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.about-intro-content h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-intro-content p {
  font-size: 16px;
  color: var(--gray-500);
  margin-bottom: 16px;
  line-height: 1.8;
}

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

.value-card {
  background: white;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.value-card i {
  font-size: 36px;
  color: var(--primary);
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.value-card p {
  font-size: 14px;
  color: var(--gray-500);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-light);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 40px 48px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-dot {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid white;
  box-shadow: var(--shadow);
  top: 4px;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
}

.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark);
}

.timeline-item p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

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

.team-card {
  text-align: center;
}

.team-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--gray-100);
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  font-size: 64px;
  color: var(--primary);
}

.team-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card p {
  font-size: 14px;
  color: var(--gray-500);
}

/* ===== 产品滚动轮播 ===== */
.product-carousel-wrapper {
  position: relative;
  padding: 0 60px;
}

.product-carousel-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 8px 4px 24px;
  scrollbar-width: none;
}

.product-carousel-track::-webkit-scrollbar {
  display: none;
}

.product-carousel-track .product-grid-card {
  flex: 0 0 calc(33.333% - 16px);
  min-width: 320px;
  scroll-snap-align: start;
}

.product-carousel-prev,
.product-carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--gray-200);
  color: var(--primary);
  font-size: 16px;
  cursor: pointer;
  z-index: 10;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.product-carousel-prev:hover,
.product-carousel-next:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.product-carousel-prev {
  left: 0;
}

.product-carousel-next {
  right: 0;
}

@media (max-width: 1024px) {
  .product-carousel-track .product-grid-card {
    flex: 0 0 calc(50% - 12px);
    min-width: 280px;
  }
}

@media (max-width: 768px) {
  .product-carousel-wrapper {
    padding: 0 40px;
  }
  
  .product-carousel-track .product-grid-card {
    flex: 0 0 100%;
    min-width: 260px;
  }
  
  .product-carousel-prev,
  .product-carousel-next {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
}

/* ===== 站内搜索 ===== */
.search-box-wrapper {
  max-width: 800px;
  margin: 0 auto 48px;
}

.search-form {
  display: flex;
  gap: 0;
  background: white;
  border-radius: 100px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  padding: 6px;
}

.search-form input {
  flex: 1;
  border: none;
  padding: 14px 24px;
  font-size: 16px;
  outline: none;
  background: transparent;
}

.search-form button {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--primary-dark);
}

.search-hotwords {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-500);
  flex-wrap: wrap;
}

.search-hotwords a {
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 13px;
  transition: var(--transition);
}

.search-hotwords a:hover {
  background: var(--primary);
  color: white;
}

.search-results-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.search-summary {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.search-result-item {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.search-result-item:hover {
  box-shadow: var(--shadow);
}

.search-result-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.search-result-title:hover {
  color: var(--primary-dark);
}

.search-result-url {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.search-result-url i {
  margin-right: 4px;
}

.search-result-desc {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.7;
}

.search-result-desc mark {
  background: rgba(15, 138, 95, 0.15);
  color: var(--primary-dark);
  padding: 0 2px;
  border-radius: 2px;
}

.search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.search-empty i {
  font-size: 48px;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.search-empty h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 8px;
}

.search-loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-500);
}

.search-loading i {
  margin-right: 8px;
}

/* ===== 站内搜索 ===== */
.search-box-wrapper {
  max-width: 800px;
  margin: 0 auto 48px;
}

.search-form {
  display: flex;
  gap: 0;
  background: white;
  border-radius: 100px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  padding: 6px;
}

.search-form input {
  flex: 1;
  border: none;
  padding: 14px 24px;
  font-size: 16px;
  outline: none;
  background: transparent;
}

.search-form button {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--primary-dark);
}

.search-hotwords {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-500);
  flex-wrap: wrap;
}

.search-hotwords a {
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 13px;
  transition: var(--transition);
}

.search-hotwords a:hover {
  background: var(--primary);
  color: white;
}

.search-results-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.search-summary {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.search-result-item {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.search-result-item:hover {
  box-shadow: var(--shadow);
}

.search-result-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.search-result-title:hover {
  color: var(--primary-dark);
}

.search-result-url {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.search-result-url i {
  margin-right: 4px;
}

.search-result-desc {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.7;
}

.search-result-desc mark {
  background: rgba(15, 138, 95, 0.15);
  color: var(--primary-dark);
  padding: 0 2px;
  border-radius: 2px;
}

.search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.search-empty i {
  font-size: 48px;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.search-empty h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 8px;
}

.search-loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-500);
}

.search-loading i {
  margin-right: 8px;
}

/* ===== 站内搜索 ===== */
.search-box-wrapper {
  max-width: 800px;
  margin: 0 auto 48px;
}

.search-form {
  display: flex;
  gap: 0;
  background: white;
  border-radius: 100px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  padding: 6px;
}

.search-form input {
  flex: 1;
  border: none;
  padding: 14px 24px;
  font-size: 16px;
  outline: none;
  background: transparent;
}

.search-form button {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--primary-dark);
}

.search-hotwords {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-500);
  flex-wrap: wrap;
}

.search-hotwords a {
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 13px;
  transition: var(--transition);
}

.search-hotwords a:hover {
  background: var(--primary);
  color: white;
}

.search-results-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.search-summary {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.search-result-item {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.search-result-item:hover {
  box-shadow: var(--shadow);
}

.search-result-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.search-result-title:hover {
  color: var(--primary-dark);
}

.search-result-url {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.search-result-url i {
  margin-right: 4px;
}

.search-result-desc {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.7;
}

.search-result-desc mark {
  background: rgba(15, 138, 95, 0.15);
  color: var(--primary-dark);
  padding: 0 2px;
  border-radius: 2px;
}

.search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.search-empty i {
  font-size: 48px;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.search-empty h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 8px;
}

.search-loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-500);
}

.search-loading i {
  margin-right: 8px;
}

/* ===== 站内搜索 ===== */
.search-box-wrapper {
  max-width: 800px;
  margin: 0 auto 48px;
}

.search-form {
  display: flex;
  gap: 0;
  background: white;
  border-radius: 100px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  padding: 6px;
}

.search-form input {
  flex: 1;
  border: none;
  padding: 14px 24px;
  font-size: 16px;
  outline: none;
  background: transparent;
}

.search-form button {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--primary-dark);
}

.search-hotwords {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-500);
  flex-wrap: wrap;
}

.search-hotwords a {
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 13px;
  transition: var(--transition);
}

.search-hotwords a:hover {
  background: var(--primary);
  color: white;
}

.search-results-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.search-summary {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.search-result-item {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.search-result-item:hover {
  box-shadow: var(--shadow);
}

.search-result-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.search-result-title:hover {
  color: var(--primary-dark);
}

.search-result-url {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.search-result-url i {
  margin-right: 4px;
}

.search-result-desc {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.7;
}

.search-result-desc mark {
  background: rgba(15, 138, 95, 0.15);
  color: var(--primary-dark);
  padding: 0 2px;
  border-radius: 2px;
}

.search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.search-empty i {
  font-size: 48px;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.search-empty h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 8px;
}

.search-loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-500);
}

.search-loading i {
  margin-right: 8px;
}

/* ===== 产品中心页面 ===== */
.product-grid {
  display: flex;
  gap: 24px;
}

/* ===== 产品滚动轮播 ===== */
.product-carousel-wrapper {
  position: relative;
  padding: 0 60px;
}

.product-carousel-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 8px 4px 24px;
  scrollbar-width: none;
}

.product-carousel-track::-webkit-scrollbar {
  display: none;
}

.product-carousel-track .product-grid-card {
  flex: 0 0 calc(33.333% - 16px);
  min-width: 320px;
  scroll-snap-align: start;
}

.product-carousel-prev,
.product-carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--primary);
  font-size: 16px;
  cursor: pointer;
  z-index: 10;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.product-carousel-prev:hover,
.product-carousel-next:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.product-carousel-prev {
  left: 0;
}

.product-carousel-next {
  right: 0;
}

@media (max-width: 1024px) {
  .product-carousel-track .product-grid-card {
    flex: 0 0 calc(50% - 12px);
    min-width: 280px;
  }
}

@media (max-width: 768px) {
  .product-carousel-wrapper {
    padding: 0 40px;
  }
  
  .product-carousel-track .product-grid-card {
    flex: 0 0 100%;
    min-width: 260px;
  }
  
  .product-carousel-prev,
  .product-carousel-next {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
}

.product-category-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.case-category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 12px 24px;
  border-radius: 100px;
  border: 1px solid var(--gray-300);
  background: white;
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.product-detail-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  background: white;
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}

.product-detail-image {
  background: var(--gray-100);
  border-radius: var(--radius);
  min-height: 360px;
  display: grid;
  place-items: center;
  font-size: 120px;
  color: var(--primary);
  overflow: hidden;
}

/* 图片自适应填满容器：等比缩放不裁剪，留白处显示浅灰底 */
.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-detail-content h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.product-detail-content > p {
  color: var(--gray-500);
  margin-bottom: 24px;
  line-height: 1.8;
}

.product-features-list {
  margin-bottom: 28px;
}

.product-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--gray-700);
}

.product-features-list li i {
  color: var(--primary);
  margin-top: 4px;
}

/* ===== 应用场景页面 ===== */
.application-hero {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.application-card-large {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 480px;
  box-shadow: var(--shadow);
}

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

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

.application-card-large .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 70%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  color: white;
}

.application-card-large .overlay h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.application-card-large .overlay p {
  font-size: 15px;
  opacity: 0.9;
}

/* ===== 专利证书 ===== */
.patent-marquee {
  overflow: hidden;
  margin: -16px;
  padding: 16px 0;
}

.patent-marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 40s linear infinite;
}

.patent-marquee-track.reverse {
  animation: marqueeScrollReverse 45s linear infinite;
  margin-top: 24px;
}

.patent-marquee-track:hover,
.patent-marquee-track.reverse:hover {
  animation-play-state: paused;
}

.patent-marquee-group {
  display: flex;
  gap: 24px;
  flex-shrink: 0;
  padding: 0 12px;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes marqueeScrollReverse {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

.patent-marquee .patent-card {
  width: 280px;
  flex-shrink: 0;
}

.honor-patents-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.patent-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

.patent-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.patent-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  overflow: hidden;
  background: var(--gray-100);
}

.patent-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  transition: transform 0.4s;
}

.patent-card:hover .patent-thumb img {
  transform: scale(1.03);
}

.patent-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}

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

.patent-overlay i {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: white;
  color: var(--dark);
  display: grid;
  place-items: center;
  font-size: 18px;
}

.patent-info {
  padding: 20px;
}

.patent-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
  line-height: 1.4;
}

.patent-no {
  font-size: 13px;
  color: var(--gray-500);
}

/* 灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
  text-align: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  font-size: 20px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.3s;
  z-index: 10000;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox-caption {
  color: white;
  margin-top: 16px;
  font-size: 16px;
  opacity: 0.9;
}

@media (max-width: 1024px) {
  .honor-patents-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .honor-patents-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .patent-info {
    padding: 16px;
  }

  .patent-info h4 {
    font-size: 14px;
  }
}

/* ===== 联系我们页面 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

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

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-item i {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info-item p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.6;
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .desktop-nav,
  .header-actions .btn-outline {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero h1 {
    font-size: 42px;
  }

  .features-grid,
  .products-grid,
  .team-grid,
  .home-about-grid,
  .news-grid,
  .home-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .home-about-card {
    padding: 28px;
  }

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

  .slide-content h1 {
    font-size: 42px;
  }

  .hero-slider {
    height: auto;
    min-height: 600px;
  }

  .slide-content {
    padding: 120px 0 100px;
  }

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

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

  .about-intro,
  .contact-grid,
  .product-detail-card {
    grid-template-columns: 1fr;
  }

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

  .application-hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 80px 0;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .features-grid,
  .products-grid,
  .solutions-grid,
  .team-grid,
  .values-grid,
  .home-about-grid,
  .news-grid,
  .home-cases-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-color-list {
    gap: 12px;
  }

  .product-color-item,
  .product-color-thumb {
    width: 90px;
    height: 90px;
  }

  .product-color-name {
    font-size: 12px;
  }

  .slide-content h1 {
    font-size: 32px;
  }

  .slide-content .hero-desc {
    font-size: 16px;
  }

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

  .case-card:nth-child(even) .case-image {
    order: 0;
  }

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

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

  .process-steps {
    grid-template-columns: 1fr;
  }

  .process-step:not(:last-child)::after {
    display: none;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .page-banner {
    padding: 100px 0 64px;
  }

  .page-banner h1 {
    font-size: 32px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 56px;
    padding-right: 0;
  }

  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 10px;
    right: auto;
  }

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

/* ===== 移动端菜单 ===== */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: white;
  z-index: 999;
  /* 顶部避开 top-bar(约34px,z-index:1001) + header(72px,z-index:1000) 的遮挡区 */
  padding: 120px 24px 24px;
  overflow-y: auto;
}

.mobile-nav.active {
  display: block;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--gray-100);
}

.mobile-nav-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.mobile-submenu {
  padding-left: 16px;
  padding-bottom: 16px;
  display: none;
}

.mobile-submenu.active {
  display: block;
}

.mobile-submenu a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--gray-500);
}

.mobile-submenu a:hover {
  color: var(--primary);
}

/* ===== 联系我们新风格 ===== */
/* 联系人卡片等高 */
.contact-grid-new {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: stretch;
}

.contact-info-new {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: space-between;
}

.contact-card-new {
  display: flex;
  gap: 16px;
  padding: 22px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  flex: 1;
}

.contact-card-new:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-card-new h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.contact-card-new p {
  font-size: 15px;
  color: var(--gray-500);
  line-height: 1.7;
}

.contact-card-new a {
  color: var(--primary);
  transition: var(--transition);
}

.contact-card-new a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* 留言表单与左侧同高 */
.contact-form-new {
  padding: 40px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.contact-form-new h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--dark);
}

.contact-form-new > p {
  color: var(--gray-500);
  margin-bottom: 24px;
}

.contact-form-new > form {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 18px;
}

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

.contact-form-new .form-group {
  margin-bottom: 0;
}

.contact-form-new .form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
}

.contact-form-new .form-group input,
.contact-form-new .form-group select,
.contact-form-new .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 10px;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--white);
  transition: var(--transition);
  font-family: inherit;
}

.contact-form-new .form-group input:focus,
.contact-form-new .form-group select:focus,
.contact-form-new .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 138, 95, 0.1);
}

.contact-form-new .form-group textarea {
  width: 100%;
  height: 120px;
  min-height: 120px;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 10px;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--white);
  transition: var(--transition);
  font-family: inherit;
  resize: none;
}

.contact-form-new .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 138, 95, 0.1);
}

.contact-form-new button[type="submit"] {
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  margin-top: auto;
}/* 办公地点卡片 */
.contact-locations-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.contact-location-card {
  height: 260px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: white;
  text-align: center;
  transition: var(--transition);
}

.contact-location-card:nth-child(2) {
  background: linear-gradient(135deg, #b45309, #d97706);
}

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

.contact-location-icon {
  font-size: 3rem;
}

.contact-location-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
}

.contact-location-card p {
  opacity: 0.85;
  margin-bottom: 8px;
}

.contact-map-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.contact-location-card:hover .contact-map-link {
  background: rgba(255, 255, 255, 0.35);
}

/* FAQ 手风琴 */
.faq-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 16px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--dark);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
  background: var(--gray-50);
}

.faq-question i {
  transition: transform 0.3s;
  color: var(--gray-400);
}

.faq-question.active i {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--gray-500);
  line-height: 1.7;
}

.faq-answer.active {
  display: block;
}

/* CTA 区块 */
.cta-section {
  background: var(--dark);
  color: white;
  text-align: center;
}

.cta-section .cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  opacity: 0.85;
  margin-bottom: 32px;
}

/* ===== 色彩创新 ===== */
.color-innovation-section {
  background: var(--gray-100);
}

.color-innovation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.color-innovation-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.color-innovation-image img {
  width: 80%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.color-innovation-content .section-tag {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.color-innovation-content .section-title {
  font-size: 42px;
  color: var(--gray-900);
  margin-bottom: 32px;
}

.color-innovation-quotes blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 20px;
  margin-bottom: 28px;
  color: var(--gray-700);
  font-size: 17px;
  line-height: 1.8;
}

.color-innovation-quotes blockquote p {
  margin: 0;
}

@media (max-width: 1024px) {
  .color-innovation-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .color-innovation-content {
    order: -1;
  }
  .color-innovation-image img {
    width: 50%;
  }
  .color-innovation-content .section-title {
    font-size: 34px;
  }
}

@media (max-width: 768px) {
  .color-innovation-image img {
    width: 80%;
  }
  .color-innovation-content .section-title {
    font-size: 28px;
  }
  .color-innovation-quotes blockquote {
    font-size: 15px;
  }
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-buttons .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: white;
}

.cta-buttons .btn-outline:hover {
  background: white;
  color: var(--dark);
}

@media (max-width: 1024px) {
  .contact-grid-new {
    grid-template-columns: 1fr;
  }
  
  .contact-locations-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .contact-form-new .form-row {
    grid-template-columns: 1fr;
  }
  
  .contact-form-new {
    padding: 24px;
  }
  
  .cta-section h2 {
    font-size: 28px;
  }
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}
/* ===== 禁止拖拽图片 ===== */
img {
  -webkit-user-drag: none;
  user-select: none;
}