/* ==================== CSS Reset & Base ==================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #183883;
  --primary-light: #1e4db5;
  --primary-dark: #0f2560;
  --primary-fade: #e8edf7;
  --accent: #d4a843;
  --accent-light: #f0d68a;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --bg: #ffffff;
  --bg-gray: #f5f6f8;
  --bg-dark: #1a1a2e;
  --border: #e0e0e0;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
  --max-width: 1400px;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

/* ==================== Header ==================== */
.header {
  background: var(--bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  display: flex;
  align-items: center;
}

/* ==================== Navigation ==================== */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  white-space: nowrap;
  transition: all 0.25s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.25s ease;
}

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

.nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav a:hover::after {
  width: 60%;
}

.nav a.active::after {
  display: none;
}

.has-dropdown.active {
  color: var(--primary) !important;
  font-weight: 600;
}

/* ==================== Dropdown Menu ==================== */
.nav-item {
  position: relative;
}

.nav-item .has-dropdown {
  display: flex;
  align-items: center;
  gap: 5px;
}

.dropdown-arrow {
  font-size: 9px;
  transition: transform 0.25s ease;
  opacity: 0.6;
}

.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
  opacity: 1;
}

.nav-item:hover .has-dropdown {
  color: var(--primary);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 180px;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.04);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  overflow: hidden;
  padding: 8px 0;
}

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

.nav .dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 24px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  border-bottom: none;
  white-space: nowrap;
  border-radius: 0;
  transition: all 0.2s ease;
  position: relative;
}

.nav .dropdown-menu a:hover {
  color: var(--primary);
  background: var(--primary-fade);
  padding-left: 30px;
}

.nav .dropdown-menu a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
  transform: scaleY(0);
  transition: transform 0.2s ease;
}

.nav .dropdown-menu a:hover::before {
  transform: scaleY(1);
}

.nav .dropdown-menu a::after {
  display: none;
}

.nav .dropdown-menu a:first-child {
  border-radius: 0;
}

.nav .dropdown-menu a:last-child {
  border-radius: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ==================== Hero / Banner ==================== */
.hero {
  position: relative;
  background: #111;
  height: calc(100vh - 78px);
  overflow: hidden;
}

.hero-video-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.25);
  z-index: 1;
}

.hero-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 20px;
  z-index: 2;
  color: #ffffff;
}

.hero-content h2 {
  font-size: 50px;
  font-weight: 700;
  margin-bottom: 30px;
  letter-spacing: 2px;
  line-height: 1.3;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* 按钮靠下显示 */
.hero-btn-bottom {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

/* 内页按钮贴近文案 */
.page-banner .hero-btn-bottom {
  bottom: auto;
  top: 50%;
  margin-top: 110px;
}

/* 内页视频背景：填满容器无黑边 */
.page-banner .hero-video-wrap video {
  object-fit: cover !important;
  background: transparent !important;
}

/* ==================== Scroll Indicator ==================== */
.scroll-indicator {
  position: fixed;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 998;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.scroll-indicator.hidden {
  opacity: 0;
  visibility: hidden;
}

.scroll-mouse {
  width: 26px;
  height: 42px;
  border: 2px solid rgba(0, 0, 0, 0.5);
  border-radius: 14px;
  position: relative;
  display: flex;
  justify-content: center;
  transition: transform 0.3s ease;
}

.scroll-dot {
  width: 4px;
  height: 8px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  animation: scrollWheel 1.6s ease-in-out infinite;
}

.scroll-text {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.6);
  letter-spacing: 2px;
  white-space: nowrap;
}

@keyframes scrollWheel {
  0% {
    opacity: 1;
    top: 6px;
  }
  100% {
    opacity: 0;
    top: 26px;
  }
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #c99a35;
  border-color: #c99a35;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 168, 67, 0.4);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
}

/* ==================== Section Common ==================== */
.section {
  padding: 80px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h3 {
  font-size: 32px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h3::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background: var(--accent);
  margin: 14px auto 0;
  border-radius: 2px;
}

.section-title p {
  color: var(--text-light);
  font-size: 15px;
  max-width: 640px;
  margin: 0 auto;
}

/* ==================== Service Cards ==================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

a.service-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 72px;
  height: 72px;
  background: var(--primary-fade);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 32px;
  color: var(--primary);
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: #ffffff;
}

.service-card h4 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 10px;
  font-weight: 600;
}

.service-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ==================== Hero Stats ==================== */
.hero-stats {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 1400px;
  margin-top: 50px;
  flex-wrap: wrap;
  padding: 0 20px;
}

.hero-stat-item {
  text-align: center;
}

.hero-stat-item .stat-number {
  font-size: 70px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 4px;
  -webkit-text-stroke: 1px rgba(0, 0, 0, 0.5);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

.hero-stat-item .stat-suffix {
  font-size: 36px;
  font-weight: 700;
  -webkit-text-stroke: 1px rgba(0, 0, 0, 0.5);
}

.hero-stat-item .stat-label {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  -webkit-text-stroke: 1px rgba(0, 0, 0, 0.5);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

/* ==================== Equipment Carousel ==================== */
.equipment-carousel {
  position: relative;
  overflow: hidden;
  padding: 0 6px;
}

.carousel-track {
  display: grid;
  grid-template-rows: repeat(2, auto);
  grid-template-columns: repeat(8, 1fr);
  grid-auto-flow: column;
  gap: 20px;
  width: 200%;
  transition: transform 0.5s ease;
}

.carousel-track .card {
  width: 100%;
  min-width: 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 80px;
  height: 80px;
  border: none;
  background: transparent;
  color: rgba(24, 56, 131, 0.5);
  border-radius: 50%;
  font-size: 80px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  opacity: 0;
  font-weight: 700;
  line-height: 1;
}

.equipment-carousel:hover .carousel-btn {
  opacity: 1;
}

.carousel-btn:hover {
  color: rgba(24, 56, 131, 0.85);
  transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
  left: 20px;
}

.carousel-next {
  right: 20px;
}

/* ==================== News / List ==================== */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.news-main {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.news-main:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.news-main-img {
  height: 260px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  overflow: hidden;
}

.news-main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-main-body {
  padding: 24px;
}

.news-main-body h4 {
  font-size: 20px;
  color: var(--text);
  margin-bottom: 10px;
  font-weight: 600;
  line-height: 1.5;
}

.news-main-body p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 14px;
}

.news-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  gap: 16px;
}

.news-list-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.news-item:hover {
  border-left-color: var(--primary);
  transform: translateX(4px);
}

.news-item-date {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: #ffffff;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  line-height: 1.2;
}

.news-item-date .day {
  font-size: 22px;
}

.news-item-date .month {
  font-size: 12px;
  opacity: 0.85;
}

.news-item-info h5 {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 600;
  line-height: 1.5;
}

.news-item-info p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==================== Honor / Equipment Cards ==================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border);
}

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

.card-img {
  height: 120px;
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  padding-top: 5px;
}

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

.card-img .img-placeholder {
  font-size: 48px;
  color: var(--primary);
  opacity: 0.3;
}

.card-body {
  padding: 20px;
}

.card-body h4 {
  font-size: 17px;
  color: var(--text);
  margin-bottom: 8px;
  font-weight: 600;
}

.card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ==================== 板块差异化样式 ==================== */

/* 仪器设备板块 - 科技蓝渐变顶边 */
.section-equipment {
  background: linear-gradient(180deg, #f0f4fc 0%, #ffffff 50%);
}

.section-equipment .card {
  border: 1px solid #dce5f5;
}

.section-equipment .card:hover {
  box-shadow: 0 10px 32px rgba(24, 56, 131, 0.15);
}

.section-equipment .card-img {
  background: linear-gradient(135deg, #e8eef8 0%, #dce5f5 100%);
}

.section-equipment .card-img .img-placeholder {
  color: var(--primary);
  opacity: 0.25;
}

.section-equipment .card-body h4 {
  color: var(--primary-dark);
}

/* 荣誉资质板块 - 金色尊贵卡片 */
.section-honors {
  background: linear-gradient(180deg, #fdfaf2 0%, #ffffff 50%);
}

.section-honors .card {
  border: 1px solid #ede4cc;
  position: relative;
  overflow: hidden;
}

.section-honors .card:hover {
  box-shadow: 0 10px 32px rgba(212, 168, 67, 0.2);
  border-color: var(--accent);
}

.section-honors .card-img {
  background: linear-gradient(135deg, #fdf8ec 0%, #f8f0d8 100%);
  height: 320px;
}

.section-honors .card-img img {
  width: auto;
  height: 90%;
  object-fit: contain;
}

.section-honors .card-img .img-placeholder {
  color: var(--accent);
  opacity: 0.35;
}

.section-honors .card-body h4 {
  color: #8b6914;
}

/* 新闻动态板块 - 已有的卡片列表样式保持不变 */
.section-news {
  background: var(--bg-gray);
}

/* ==================== About Page ==================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.about-img .img-placeholder {
  font-size: 64px;
  color: var(--primary);
  opacity: 0.2;
}

.about-content h3 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 20px;
  font-weight: 700;
}

.about-content p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

/* ==================== Advantage Grid ==================== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
}

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

.advantage-icon {
  font-size: 42px;
  margin-bottom: 16px;
  line-height: 1;
}

.advantage-card h4 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 10px;
  font-weight: 600;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin: 0;
}

/* ==================== Process Flow ==================== */
.process-flow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0;
}

.process-step {
  flex: 0 0 180px;
  text-align: center;
  padding: 20px 16px;
}

.process-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.process-step h4 {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.process-step p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
}

.process-arrow {
  display: flex;
  align-items: center;
  padding-top: 30px;
  font-size: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ==================== Team Intro ==================== */
.team-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.team-intro-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.team-intro-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.team-intro-placeholder {
  height: 400px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 500;
}

.team-intro-icon {
  font-size: 80px;
  line-height: 1;
}

.team-intro-content h4 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 16px;
  font-weight: 600;
}

.team-intro-content p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

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

.team-stat-item {
  text-align: center;
  flex: 0 0 auto;
  min-width: 80px;
}

.team-stat-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.team-stat-num span {
  font-size: 20px;
  font-weight: 600;
}

.team-stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

.team-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 20px;
}

.team-feature {
  font-size: 14px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.team-feature-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ==================== Culture ==================== */
.section-culture {
  background: linear-gradient(180deg, #fafbfd 0%, #f0f3f8 100%);
}

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

.culture-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.culture-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.culture-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(24, 56, 131, 0.12);
}

.culture-card:hover::before {
  transform: scaleX(1);
}

.culture-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all 0.3s ease;
}

.culture-card:hover .culture-icon-wrap {
  background: var(--primary);
}

.culture-icon {
  font-size: 32px;
  line-height: 1;
}

.culture-card-body h4 {
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 12px;
  font-weight: 600;
}

.culture-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin: 0;
}

/* ==================== Vision ==================== */
.section-vision {
  background: linear-gradient(180deg, #fafbfd 0%, #eef2f9 100%);
  padding: 80px 0;
}

.vision-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.vision-text-area {
  position: relative;
}

.vision-quote-icon {
  font-size: 80px;
  color: var(--primary);
  opacity: 0.12;
  line-height: 1;
  margin-bottom: -20px;
  font-family: Georgia, serif;
}

.vision-text {
  font-size: 20px;
  color: var(--text);
  line-height: 2;
  margin-bottom: 24px;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

.vision-divider {
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin-bottom: 24px;
  border-radius: 2px;
}

.vision-subtext {
  font-size: 16px;
  color: var(--text-light);
  line-height: 2;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.vision-goals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vision-goal {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}

.vision-goal-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vision-img-area {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(24, 56, 131, 0.12);
}

.vision-img-area img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}

/* ==================== Lab Gallery ==================== */
.lab-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.lab-gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  background: var(--bg);
}

.lab-gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.14);
}

.lab-gallery-img {
  height: 220px;
  background: linear-gradient(135deg, #e8edf7 0%, #dce3f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lab-gallery-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lab-gallery-img .img-placeholder {
  font-size: 56px;
  color: var(--primary);
  opacity: 0.25;
}

.lab-gallery-caption {
  padding: 16px 20px;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  border-top: 1px solid var(--border);
}

/* ==================== About Intro ==================== */
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

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

.about-feature-text h5 {
  font-size: 15px;
  margin-bottom: 4px;
  font-weight: 600;
}

.about-feature-text p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* ==================== Detail Page ==================== */
.detail-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  padding: 60px 0;
  text-align: center;
}

.detail-header h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
}

.detail-breadcrumb {
  font-size: 14px;
  opacity: 0.8;
}

.detail-breadcrumb a {
  color: #ffffff;
  opacity: 0.7;
}

.detail-breadcrumb a:hover {
  opacity: 1;
}

.detail-body {
  padding: 60px 0;
}

.detail-header-plain {
  padding: 40px 0 0;
  text-align: center;
}

.detail-header-plain h2 {
  font-size: 28px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.5;
}

.detail-header-plain .news-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ==================== Related Articles ==================== */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.related-thumb {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.related-thumb-icon {
  font-size: 40px;
  opacity: 0.4;
}

.related-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.related-info h4 {
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-info p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: auto;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}

.detail-article {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.detail-article h3 {
  font-size: 24px;
  color: var(--primary);
  margin: 28px 0 14px;
}

.detail-article h3:first-child {
  margin-top: 0;
}

.detail-article p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 2;
  margin-bottom: 16px;
}

.detail-article ul,
.detail-article ol {
  margin: 16px 0 16px 20px;
  list-style: disc;
}

.detail-article li {
  font-size: 16px;
  color: var(--text-light);
  line-height: 2;
}

.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.sidebar-card h4 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
  font-weight: 600;
}

.sidebar-card ul li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}

.sidebar-card ul li:last-child {
  border-bottom: none;
}

.sidebar-card ul li a {
  color: var(--text);
  font-size: 14px;
  transition: color var(--transition);
}

.sidebar-card ul li a:hover {
  color: var(--primary);
}

/* ==================== Sidebar Navigation ==================== */
.sidebar-nav {
  position: sticky;
  top: 80px;
  z-index: 10;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(24, 56, 131, 0.2);
}

.sidebar-nav h4 {
  color: #ffffff;
  font-size: 17px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

.sidebar-nav ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-nav ul li {
  padding: 0;
  border-bottom: none;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  border-radius: 8px;
  transition: all 0.25s ease;
  border-left: 3px solid transparent;
  position: relative;
}

.sidebar-nav .nav-link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.sidebar-nav .nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-left-color: rgba(255, 255, 255, 0.6);
}

.sidebar-nav .nav-link:hover::before {
  background: #ffffff;
}

.sidebar-nav .nav-link.active {
  color: #ffffff;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.18);
  border-left-color: #ffffff;
}

.sidebar-nav .nav-link.active::before {
  background: var(--accent);
  width: 8px;
  height: 8px;
  box-shadow: 0 0 6px var(--accent);
}

/* ==================== Sidebar Inquiry ==================== */
.sidebar-inquiry {
  padding: 16px;
  position: sticky;
  top: 460px;
  z-index: 10;
}

.btn-inquiry {
  display: block;
  width: 100%;
  padding: 12px 0;
  font-size: 15px;
  letter-spacing: 1px;
}

/* ==================== List Page ==================== */
.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.list-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.list-pagination a,
.list-pagination span {
  display: inline-block;
  padding-left:10px;
  padding-right:10px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: var(--radius);
  font-size: 14px;
  border: 1px solid var(--border);
  color: var(--text);
  transition: all var(--transition);
}
.list-pagination b {
  display: inline-block;
  padding-left:10px;
  padding-right:10px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
  transition: all var(--transition);
}

.list-pagination a:hover,
.list-pagination span.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* ==================== Page Banner (Inner) ==================== */
.page-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
}

.page-banner h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.page-banner .breadcrumb {
  font-size: 14px;
  opacity: 0.85;
  position: relative;
  z-index: 1;
}

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

.page-banner .breadcrumb a:hover {
  color: #ffffff;
}

/* ==================== Breadcrumb Bar ==================== */
.breadcrumb-bar {
  background: var(--bg-gray);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.breadcrumb-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb-bar a {
  color: var(--text-light);
  transition: color var(--transition);
}

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

.breadcrumb-bar .breadcrumb-sep {
  color: var(--border);
}

.breadcrumb-bar span:last-child {
  color: var(--primary);
  font-weight: 500;
}

/* ==================== Footer ==================== */
.footer-spacer {
  height: 10px;
  background: var(--bg);
}

.footer {
  color: #b0b8c8;
}

/* Footer Top - CTA */
.footer-top {
  background: #f0f3f8;
  padding: 48px 0;
}

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

.footer-cta-text h3 {
  color: var(--primary);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-cta-text p {
  color: var(--text-light);
  font-size: 15px;
  margin: 0;
}

.footer-cta-action {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.btn-accent {
  display: inline-block;
  background: var(--accent);
  color: #1a1a2e;
  padding: 18px 48px;
  border-radius: 6px;
  font-size: 18px;
  font-weight: 600;
  border: 2px solid var(--accent);
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn-accent:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: #1a1a2e;
}

.btn-outline-white {
  display: inline-block;
  background: transparent;
  color: #ffffff;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn-outline-white:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

/* Footer Main */
.footer-main {
  padding: 60px 0 40px;
  background: #0a1120;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.6fr;
  gap: 48px;
}

.footer-col-brand p {
  color: #8899bb;
  font-size: 14px;
  line-height: 1.8;
  margin: 20px 0;
}

.footer-logo {
  margin-bottom: 4px;
}

.footer-cert {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.cert-badge {
  display: inline-block;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid rgba(212, 168, 67, 0.3);
  border-radius: 4px;
  background: rgba(212, 168, 67, 0.06);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 18px;
  margin-bottom: 24px;
  font-weight: 600;
  position: relative;
  padding-bottom: 14px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 8px;
  color: #8899bb;
}

.footer-col ul li {
  padding: 7px 0;
}

.footer-col ul li a {
  color: #8899bb;
  font-size: 14px;
  transition: all 0.25s ease;
  display: inline-block;
  position: relative;
  padding-left: 0;
}

.footer-col ul li a::before {
  content: "›";
  position: relative;
  margin-right: 6px;
  color: var(--accent);
  opacity: 0;
  transition: all 0.25s ease;
}

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

.footer-col ul li a:hover::before {
  opacity: 1;
}

/* Footer Contact */
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.footer-contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(212, 168, 67, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

.footer-contact-label {
  display: block;
  font-size: 12px;
  color: #6b7280;
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-contact-item strong {
  display: block;
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
}

.footer-contact-item span {
  color: #8899bb;
  font-size: 14px;
}

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: #5a6478;
  background: #070c18;
}

.footer-bottom .container {
  padding-left: 0;
  padding-right: 0;
}

/* ==================== Structured Data Hidden ==================== */
.schema-data {
  display: none;
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-grid,
  .advantage-grid,
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-intro {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .team-intro-placeholder {
    height: 280px;
  }
  .culture-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-arrow {
    display: none;
  }
  .process-step {
    flex: 0 0 150px;
  }
  .vision-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .vision-img-area img {
    height: 300px;
  }
  .lab-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-cta {
    flex-direction: column;
    text-align: center;
  }
  .footer-cta-action {
    flex-wrap: wrap;
    justify-content: center;
  }
  .about-intro {
    grid-template-columns: 1fr;
  }
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h2 {
    font-size: 36px;
  }
  .hero-stats {
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
  }
  .hero-stat-item .stat-number {
    font-size: 48px;
  }
  .hero-stat-item .stat-suffix {
    font-size: 24px;
  }
  .hero-stat-item .stat-label {
    font-size: 16px;
  }
  .hero {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap video {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  .page-banner .hero-video-wrap {
    height: 50vh !important;
  }
  .page-banner .hero-video-wrap video {
    width: 100% !important;
    height: 100% !important;
    min-height: 100% !important;
    object-fit: cover !important;
    position: static !important;
    transform: none !important;
  }
  .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .hero-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0 20px;
    justify-content: center;
  }
  .equipment-carousel .carousel-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto;
    grid-auto-flow: row;
    width: 100%;
  }
  .carousel-btn {
    display: none;
  }
  .section-honors .card-img {
    height: 240px;
  }
  .lab-adv-layout {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }
  .lab-adv-img {
    height: 320px !important;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 75%;
    max-width: 300px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
    padding: 70px 0 20px;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }
  .nav.open {
    display: flex;
    transform: translateX(0);
  }
  .nav a {
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav a:hover {
    color: var(--primary);
    background: transparent;
  }
  .nav a.active {
    color: var(--primary);
    background: transparent;
    font-weight: 600;
  }
  .nav .nav-item {
    display: block;
  }
  .nav .dropdown-arrow {
    display: none;
  }
  .nav .dropdown-menu {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .hero {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap video {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  .page-banner .hero-video-wrap {
    height: 50vh !important;
  }
  .page-banner .hero-video-wrap video {
    width: 100% !important;
    height: 100% !important;
    min-height: 100% !important;
    object-fit: cover !important;
    position: static !important;
    transform: none !important;
  }
  .page-banner .hero-content h2 {
    font-size: 24px;
    white-space: normal;
    max-width: 100%;
  }
  .page-banner .hero-content p {
    white-space: normal !important;
    font-size: 14px !important;
    max-width: 100% !important;
  }
  .page-banner .hero-btn-bottom {
    margin-top: 90px;
    width: 100%;
    padding: 0 16px;
  }
  .page-banner .hero-btn-bottom .btn {
    display: block;
    width: 100%;
  }
  /* 新闻内容页 banner 移动端更紧凑 */
  .page-banner.banner-detail .hero-video-wrap {
    height: 240px !important;
  }
  .page-banner.banner-detail .hero-btn-bottom {
    margin-top: 50px !important;
  }
  .page-banner.banner-detail .hero-content h2 {
    font-size: 18px;
    margin-bottom: 0;
  }
  .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .hero-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0 16px;
    justify-content: center;
  }
  .hero-content h2 {
    font-size: 26px;
    letter-spacing: 1px;
    margin-bottom: 0;
  }
  .hero-stats {
    display: none;
  }
  .hero-btn-bottom {
    bottom: 20px;
  }
  .page-banner .hero-btn-bottom {
    margin-top: 80px;
  }
  .hero-btn-bottom .btn {
    padding: 10px 24px;
    font-size: 14px;
  }
  .section {
    padding: 40px 0;
  }
  .section-title h3 {
    font-size: 24px;
  }
  .section-title {
    margin-bottom: 30px;
  }
  .article-grid,
  .advantage-grid,
  .service-grid,
  .card-grid,
  .culture-grid,
  .list-grid {
    grid-template-columns: 1fr;
  }
  .team-features {
    grid-template-columns: 1fr;
  }
  .process-flow {
    flex-direction: column;
    align-items: center;
  }
  .process-arrow {
    transform: rotate(90deg);
    padding-top: 0;
    padding: 8px 0;
  }
  .vision-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .vision-img-area img {
    height: 250px;
  }
  .vision-text {
    font-size: 16px;
  }
  .vision-subtext {
    font-size: 14px;
  }
  .lab-gallery {
    grid-template-columns: 1fr;
  }
  .about-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .about-content h3 {
    font-size: 22px;
  }
  .about-features {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px 20px;
  }
  .footer-col-brand {
    grid-column: 1 / -1;
  }
  .footer-col-contact {
    grid-column: 1 / -1;
  }
  .footer-cta {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }
  .footer-cta-text h3 {
    font-size: 22px;
  }
  .footer-cta-text p {
    font-size: 14px;
  }
  .footer-cta-action {
    flex-direction: column;
    width: 100%;
  }
  .footer-cta-action .btn {
    text-align: center;
    width: 100%;
  }
  .footer-top {
    padding: 32px 0;
  }
  .footer-main {
    padding: 40px 0 30px;
  }
  .equipment-carousel .carousel-track {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    grid-auto-flow: row;
    width: 100%;
    gap: 16px;
  }
  .equipment-carousel .carousel-track .card:nth-child(n+9) {
    display: none;
  }
  .carousel-btn {
    display: none;
  }
  .section-honors .card-img {
    height: 200px;
  }
  .detail-article {
    padding: 24px;
  }
  .scroll-indicator {
    display: none;
  }
  .cert-item {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .cert-img-box {
    height: 240px !important;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .detail-header-plain h2 {
    font-size: 20px;
  }
  .detail-header-plain .news-meta {
    font-size: 12px;
    gap: 4px 12px;
  }
  .detail-header-plain .news-meta span {
    white-space: nowrap;
  }
  .sidebar-nav {
    display: none !important;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }
  .hero {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap {
    height: auto;
    min-height: auto;
  }
  .hero-video-wrap video {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  .page-banner .hero-video-wrap {
    height: 45vh !important;
  }
  .page-banner .hero-btn-bottom {
    margin-top: 100px;
  }
  .page-banner .hero-content h2 {
    font-size: 20px;
  }
  .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .hero-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0 12px;
    justify-content: center;
  }
  .hero-content h2 {
    font-size: 22px;
    letter-spacing: 0.5px;
  }
  .hero-btn-bottom .btn {
    padding: 8px 20px;
    font-size: 13px;
  }
  .btn {
    padding: 10px 24px;
    font-size: 14px;
  }
  .section-title h3 {
    font-size: 22px;
  }
  .section {
    padding: 32px 0;
  }
  .about-features {
    grid-template-columns: 1fr;
  }
  .section-honors .card-img {
    height: 180px;
  }
  .footer-cta-text h3 {
    font-size: 20px;
  }
  .footer-col h4 {
    font-size: 16px;
  }
}