/* ========================
   智云久辰官网 - 全局样式
   ======================== */

/* ----- 字体引入 -----
   所有字体均已自托管（/static/fonts/），由 base.html 中的 <link> 并行加载；
   不再使用 @import（@import 会导致整个样式表被阻塞，页面长时间无样式）。 */
@font-face {
  font-family: 'Alibaba PuHuiTi';
  src: url('/static/fonts/AlibabaPuHuiTi-3-55-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Alibaba PuHuiTi';
  src: url('/static/fonts/AlibabaPuHuiTi-3-85-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Material Icons 健壮性增强：
   1) 标准 font-feature-settings 保证 Firefox 等浏览器连字生效（否则显示成字母）
   2) 统一 line-height / vertical-align 修复图标与文字混排时的错位 */
.material-symbols-outlined {
  line-height: 1;
  vertical-align: middle;
  font-feature-settings: 'liga';
  -webkit-font-feature-settings: 'liga';
  font-variant-ligatures: common-ligatures;
}

/* ----- CSS 变量 ----- */
:root {
  --primary: #0066FF;
  --primary-light: #00C6FF;
  --primary-dark: #0052CC;
  --secondary: #00D4AA;
  --accent: #7C3AED;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Smiley Sans Oblique', 'Alibaba PuHuiTi', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-subheading: 'Noto Serif SC', 'Source Han Serif SC', '思源宋体', 'Songti SC', 'SimSun', serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans SC', '思源黑体', 'Alibaba PuHuiTi', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1280px;
  --header-height: 72px;
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-bg-scrolled: rgba(255, 255, 255, 0.95);
  --header-border: rgba(226, 232, 240, 0.6);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* ----- 工具类 ----- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-sm {
  padding: 60px 0;
}

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

.section-gradient {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.03) 0%, rgba(0, 198, 255, 0.03) 100%);
}

/* ----- 产品大区块（带从右往左图片流背景） ----- */
.product-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  isolation: isolate;
}
.product-section-alt { background: var(--bg-secondary); }
.product-section-inner { position: relative; z-index: 2; }
.product-section-cta { text-align: center; margin-top: 36px; }

.product-stream {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
  display: flex;
  align-items: center;
}
.product-stream-track {
  display: flex;
  gap: 32px;
  white-space: nowrap;
  animation: stream-rtl 40s linear infinite;
  will-change: transform;
  padding: 0 16px;
}
.product-stream-1 .product-stream-track { animation-duration: 55s; }
.product-stream-item {
  flex: 0 0 auto;
  width: 360px;
  height: 220px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
  background: #fff;
  transform: rotate(-2deg);
}
.product-stream-1 .product-stream-item { transform: rotate(2deg); }
.product-stream-item:nth-child(2n) { transform: rotate(1.5deg); margin-top: 30px; }
.product-stream-1 .product-stream-item:nth-child(2n) { transform: rotate(-1.5deg); margin-top: 30px; }
.product-stream-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product-stream-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.80) 0%, rgba(255,255,255,0.72) 50%, rgba(255,255,255,0.80) 100%);
}
.product-section-alt .product-stream-overlay {
  background: linear-gradient(180deg, rgba(241,245,249,0.80) 0%, rgba(241,245,249,0.72) 50%, rgba(241,245,249,0.80) 100%);
}
@keyframes stream-rtl {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@media (max-width: 768px) {
  .product-stream-item { width: 220px; height: 140px; }
  .product-section { padding: 64px 0; }
}

/* ==================== 背景大图轮播 ==================== */
.product-bg-section { position: relative; isolation: isolate; }
.product-bg-carousel {
  position: absolute; inset: 0; z-index: 0; overflow: hidden;
}
.product-bg-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.08);
  transition: opacity 1.4s ease, transform 8s ease;
}
.product-bg-slide.active { opacity: 1; transform: scale(1); }
.product-bg-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(255,255,255,0.88) 0%, rgba(255,255,255,0.78) 60%, rgba(255,255,255,0.86) 100%);
}
.product-section-alt .product-bg-overlay {
  background: linear-gradient(180deg, rgba(241,245,249,0.90) 0%, rgba(241,245,249,0.80) 60%, rgba(241,245,249,0.88) 100%);
}

/* ==================== 左右布局 split ==================== */
.product-split { padding: 100px 0; }
.product-split-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
}
.product-split-text { max-width: 540px; }
.features-list-split { margin: 32px 0; display: flex; flex-direction: column; gap: 20px; }
.feature-row { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon-sm {
  flex: 0 0 auto; width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.feature-icon-sm .material-symbols-outlined { font-size: 22px; }
.feature-row h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.feature-row p { font-size: 14px; color: var(--text-secondary); }
.product-split-media { position: relative; }
.split-carousel {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.18);
  background: #F8FAFC;
  border: 1px solid var(--border);
}
/* 固定容器比例，确保图片始终显示且不跳动 */
.split-carousel .swiper-wrapper { align-items: center; }
.split-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  aspect-ratio: 4 / 3;
  background: #F8FAFC;
}
.split-slide img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.10);
}
/* 导航按钮：小巧圆钮，置于卡片两侧，避免遮挡图片 */
.split-carousel .swiper-button-prev,
.split-carousel .swiper-button-next {
  width: 36px;
  height: 36px;
  top: 50%;
  border-radius: 50%;
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.15);
  transition: all .25s;
  margin-top: 0;
  transform: translateY(-50%);
}
.split-carousel .swiper-button-prev::after,
.split-carousel .swiper-button-next::after { display: none; }
.split-carousel .swiper-button-prev .material-symbols-outlined,
.split-carousel .swiper-button-next .material-symbols-outlined { font-size: 18px; }
.split-carousel .swiper-button-prev { left: 8px; }
.split-carousel .swiper-button-next { right: 8px; }
.split-carousel .swiper-button-prev:hover,
.split-carousel .swiper-button-next:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.35);
}
/* 指示器：胶囊圆点，美观不贴边 */
.split-carousel .swiper-pagination {
  position: absolute;
  bottom: 14px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 10;
}
.split-carousel .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 102, 255, 0.28);
  opacity: 1;
  transition: all .3s;
  cursor: pointer;
}
.split-carousel .swiper-pagination-bullet-active {
  width: 26px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 2px 8px rgba(0, 102, 255, 0.35);
}

/* ==================== 三图聚焦 triple（Swiper coverflow） ==================== */
.triple-gallery {
  position: relative;
  min-height: 460px;
  padding: 40px 20px 60px;
  overflow: hidden;
}
.triple-gallery .swiper-slide {
  width: 420px;
  aspect-ratio: 16/10;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.22);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.triple-gallery .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  cursor: zoom-in;
}
/* 非激活的侧图暗化，增强景深与焦点感 */
.triple-gallery .swiper-slide {
  opacity: .55;
  filter: brightness(.85);
  transition: transform .6s ease, opacity .5s ease, filter .5s ease, box-shadow .5s ease;
}
.triple-gallery .swiper-slide-active {
  opacity: 1;
  filter: brightness(1);
}
.triple-gallery .swiper-slide img { border-radius: inherit; }
.triple-gallery .swiper-button-prev,
.triple-gallery .swiper-button-next {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--bg-primary);
  color: var(--primary);
  border: 2px solid var(--border);
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
  transition: all .2s;
}
.triple-gallery .swiper-button-prev::after,
.triple-gallery .swiper-button-next::after { font-size: 18px; font-weight: 700; }
.triple-gallery .swiper-button-prev:hover,
.triple-gallery .swiper-button-next:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.triple-gallery .swiper-pagination {
  position: absolute;
  bottom: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 1px;
  z-index: 10;
}
.triple-gallery .swiper-pagination-fraction { width: auto; left: 50%; transform: translateX(-50%); }

@media (max-width: 768px) {
  .product-split-inner { grid-template-columns: 1fr; gap: 32px; }
  .split-carousel { min-height: 240px; }
  .split-slide { padding: 16px; }
  .triple-gallery { min-height: 300px; padding: 20px 8px 44px; }
  .triple-gallery .swiper-slide { width: 260px; border-radius: 10px; }
  .triple-gallery .swiper-button-prev,
  .triple-gallery .swiper-button-next { width: 38px; height: 38px; }
  .triple-gallery .swiper-button-prev::after,
  .triple-gallery .swiper-button-next::after { font-size: 14px; }
}

@media (max-width: 480px) {
  .triple-gallery { min-height: 240px; padding: 12px 4px 38px; }
  .triple-gallery .swiper-slide { width: 210px; border-radius: 8px; }
  .triple-gallery .swiper-pagination { font-size: 12px; bottom: 8px; }
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.08) 100%);
  color: var(--primary);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
  border: 1px solid rgba(0, 102, 255, 0.12);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 首页标题中"以 AI"间距修正：避免斜体"以"遮挡渐变"AI" */
.hero-title .text-gradient { padding-left: .15em; }

.gradient-border {
  position: relative;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--primary), var(--primary-light), var(--secondary));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ----- 按钮 ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.35);
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 16px;
}

/* ----- 卡片 ----- */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: rgba(0, 102, 255, 0.2);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.08) 100%);
  color: var(--primary);
  font-size: 28px;
  transition: var(--transition);
}

.card:hover .card-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  transform: scale(1.05);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-text {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ----- 头部导航 ----- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: var(--header-bg, rgba(255, 255, 255, 0.85));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--header-border, rgba(226, 232, 240, 0.6));
  transition: var(--transition);
}

.header.scrolled {
  background: var(--header-bg-scrolled, rgba(255, 255, 255, 0.95));
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: var(--transition);
}

.logo img {
  height: 40px;
  width: auto;
  border-radius: 8px;
}

.logo:hover {
  opacity: 0.85;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(0, 102, 255, 0.06);
}

.nav-link .material-symbols-outlined {
  font-size: 18px;
}

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

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text-primary);
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--bg-tertiary);
}

/* ----- 移动端菜单 ----- */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}

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

.mobile-menu .nav-link {
  padding: 16px;
  font-size: 17px;
  border-radius: var(--radius);
  justify-content: flex-start;
}

.mobile-menu .btn {
  margin-top: 16px;
  justify-content: center;
}

/* ----- Hero 区域 ----- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 60px) 0 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  width: 120%;
  height: 120%;
  top: -10%;
  left: -10%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(0, 102, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 198, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(0, 212, 170, 0.04) 0%, transparent 50%);
  animation: heroFloat 20s ease-in-out infinite;
}

.hero-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 102, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 102, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at 50% 50%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black 0%, transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 102, 255, 0.15);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge .material-symbols-outlined {
  font-size: 18px;
  color: var(--secondary);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--text-primary);
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.hero-stat-value .text-gradient {
  -webkit-text-fill-color: transparent;
}

.hero-stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 1s ease-out 0.3s both;
}

.hero-visual-main {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(0, 198, 255, 0.05) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-visual-main::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(0, 102, 255, 0.08) 100%);
}

.hero-visual-logo {
  width: 70%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 102, 255, 0.2));
  animation: float 6s ease-in-out infinite;
  position: relative;
  z-index: 2;
}

.hero-visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 102, 255, 0.15);
  animation: pulse 4s ease-in-out infinite;
}

.hero-visual-ring:nth-child(1) {
  width: 80%;
  height: 80%;
  animation-delay: 0s;
}

.hero-visual-ring:nth-child(2) {
  width: 100%;
  height: 100%;
  animation-delay: 1s;
}

.hero-visual-ring:nth-child(3) {
  width: 120%;
  height: 120%;
  animation-delay: 2s;
}

/* ----- 产品/服务矩阵 ----- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: rgba(0, 102, 255, 0.2);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

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

.product-card .card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  font-size: 40px;
}

.product-card .card-title {
  font-size: 1.35rem;
}

.product-card .card-text {
  flex: 1;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.product-tag {
  padding: 4px 10px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 100px;
  font-size: 13px;
}

/* ----- 优势/特色 ----- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 18px;
  padding: 28px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.feature-item:hover {
  box-shadow: var(--shadow);
  border-color: rgba(0, 102, 255, 0.15);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.08) 100%);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.feature-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- 数据展示 ----- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  text-align: center;
  padding: 16px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: var(--border);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ----- 案例展示 ----- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.case-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition-slow);
  cursor: pointer;
}

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

.case-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

.case-more .material-symbols-outlined { font-size: 16px; transition: var(--transition); }
.case-card:hover .case-more .material-symbols-outlined { transform: translateX(4px); }

.case-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 48px;
  position: relative;
  overflow: hidden;
}

.case-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
}

.case-content {
  padding: 28px;
}

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}

.case-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.case-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- 新闻动态 ----- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.news-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition-slow);
  display: flex;
  flex-direction: column;
}

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

.news-image {
  height: 180px;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 40px;
}

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

.news-meta {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
  flex: 1;
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.news-link:hover {
  gap: 8px;
}

/* ----- 合作/流程 ----- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 32px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
}

.step-item:hover {
  border-color: rgba(0, 102, 255, 0.2);
  box-shadow: var(--shadow);
}

.step-item::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.25);
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -28px;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  display: none;
}

.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.08) 100%);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- 联系表单 ----- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-card {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.contact-card:hover {
  border-color: rgba(0, 102, 255, 0.2);
  box-shadow: var(--shadow);
}

.contact-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}

.contact-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.contact-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-form {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-secondary);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.08);
  background: var(--bg-primary);
}

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

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

/* ----- 页脚 ----- */
.footer {
  background: var(--text-primary);
  color: #CBD5E1;
  padding: 80px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #94A3B8;
  margin-bottom: 24px;
}

.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
}

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

.footer-links a {
  font-size: 14px;
  color: #94A3B8;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: #fff;
  transform: translateX(4px);
}

/* 页脚 NAP 企业信息 */
.footer-nap {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  margin-bottom: 24px;
}

.footer-nap-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
}

.footer-nap-title .material-symbols-outlined {
  font-size: 18px;
  color: #38BDF8;
}

.footer-nap-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  font-size: 13px;
  color: #94A3B8;
  line-height: 1.9;
}

.footer-nap-item {
  white-space: normal;
}

.footer-nap-item strong {
  color: #E2E8F0;
  font-weight: 600;
  margin-right: 4px;
}

/* 关于页 / 联系页 NAP 企业信息 */
.nap-section { margin-top: 0; }
.nap-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.nap-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 22px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.nap-item-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.nap-item-body { min-width: 0; }
.nap-item-body .nap-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}
.nap-item-body .nap-value {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.6;
  word-break: break-all;
}
@media (max-width: 768px) {
  .nap-list { grid-template-columns: 1fr; }
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: #64748B;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

/* 页脚公众号二维码卡片 */
.footer-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  max-width: 320px;
}

.footer-qr img {
  width: 88px;
  height: 88px;
  border-radius: 8px;
  background: #fff;
  flex-shrink: 0;
  object-fit: contain;
}

.footer-qr-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-qr-title {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.footer-qr-sub {
  color: #94A3B8;
  font-size: 12.5px;
}

@media (max-width: 480px) {
  .footer-qr { padding: 14px; }
  .footer-qr img { width: 76px; height: 76px; }
}

/* ----- 页面标题横幅 ----- */
.page-banner {
  padding: calc(var(--header-height) + 80px) 0 80px;
  background: linear-gradient(135deg, #F8FAFC 0%, #FFFFFF 100%);
  position: relative;
  overflow: hidden;
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 50%, rgba(0, 102, 255, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(0, 198, 255, 0.06) 0%, transparent 50%);
}

.page-banner-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.page-banner-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.page-banner-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- 面包屑 ----- */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 100%;
}

.breadcrumb a {
  flex-shrink: 0;
  white-space: nowrap;
}

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

.breadcrumb .material-symbols-outlined {
  font-size: 16px;
  flex-shrink: 0;
}

.breadcrumb > span:last-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ----- 关于页面 ----- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

/* ----- 关于我们 - 全屏大图 Hero ----- */
.about-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: calc(var(--header-height) + 40px) 0 40px;
  overflow: hidden;
  color: #fff;
}

.about-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.about-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.about-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(15, 23, 42, 0.55) 60%, rgba(0, 102, 255, 0.25) 100%);
}

.about-hero-empty .about-hero-overlay {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.65) 100%);
}

.about-hero-empty-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0, 102, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 198, 255, 0.12) 0%, transparent 40%),
    linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
}

.about-hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 900px;
  text-align: center;
  padding: 0 24px;
}

.about-hero-breadcrumb {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.75);
}

.about-hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}

.about-hero-breadcrumb .material-symbols-outlined {
  color: rgba(255, 255, 255, 0.5);
}

.about-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.about-hero-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 28px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.about-hero-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-xl);
  padding: 32px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin-bottom: 32px;
}

.about-hero-body h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

/* 仅有标题无段落时，去掉底部多余间距，使文字在卡片中垂直居中 */
.about-hero-body h2:last-child {
  margin-bottom: 0;
}

.about-hero-body p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.88);
}

.about-hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.about-hero-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.about-hero-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.about-hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  animation: about-hero-bounce 2s infinite;
}

.about-hero-scroll .material-symbols-outlined {
  font-size: 28px;
}

@keyframes about-hero-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ----- 导航下拉菜单 ----- */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s ease;
  z-index: 1001;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.nav-dropdown-menu a:hover {
  background: rgba(0, 102, 255, 0.06);
  color: var(--primary);
}

.nav-dropdown-menu .material-symbols-outlined {
  font-size: 18px;
}

/* ----- 团队介绍页 - 4x2 网格 ----- */
.team-grid-4x2 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px 24px;
}

.team-card {
  text-align: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px 20px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.team-avatar-wrap {
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid rgba(0, 102, 255, 0.15);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  position: relative;
}

.team-avatar-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.12);
  pointer-events: none;
}

.team-avatar {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-radius: 50%;
}

.team-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.team-school {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.team-bio {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ----- 博士后团队：整卡堆叠（Swiper cards 效果） ----- */
.postdoc-swiper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 0 56px;
  overflow: hidden;
}

.postdoc-swiper .swiper-wrapper { align-items: stretch; }

.postdoc-swiper .swiper-slide {
  height: auto;
  box-sizing: border-box;
  padding: 0 58px;
  display: flex;
  justify-content: center;
  align-items: stretch;
  will-change: transform;
  backface-visibility: hidden;
}

/* 单张专家整卡：左信息 + 右大人像 */
.postdoc-expert-card {
  width: 100%;
  display: grid;
  grid-template-columns: 0.94fr 1.06fr;
  gap: 40px;
  padding: 40px;
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 28px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.09);
}

.postdoc-member-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.postdoc-member-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.postdoc-member-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-heading);
}
.postdoc-member-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(0, 102, 255, 0.08);
}
.postdoc-md { font-size: 15px; line-height: 1.8; color: var(--text-secondary); }
.postdoc-md p { margin-bottom: 10px; }
.postdoc-md p:last-child { margin-bottom: 0; }
.postdoc-photo-empty {
  width: 100%;
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E0E7FF 0%, #F1F5F9 100%);
  color: var(--text-muted);
}
.postdoc-photo-empty .material-symbols-outlined { font-size: 80px; opacity: 0.5; }
.postdoc-photo-placeholder .postdoc-photo-empty { display: flex; }

.postdoc-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
}

.postdoc-block .section-label {
  margin-bottom: 16px;
  justify-content: flex-start;
}

.postdoc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.postdoc-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
}

.postdoc-tag-outline {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.postdoc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.postdoc-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.postdoc-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.postdoc-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 右栏人像：铺满圆角，底部渐变 + 履历 */
.postdoc-media {
  display: flex;
  min-width: 0;
}

.postdoc-photo-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 540px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);
}

.postdoc-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 16%;
  display: block;
}

.postdoc-photo-empty {
  width: 100%;
  height: 100%;
  min-height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E0E7FF 0%, #F1F5F9 100%);
  color: var(--text-muted);
}
.postdoc-photo-empty .material-symbols-outlined { font-size: 80px; opacity: 0.5; }

/* 底部渐变遮罩 + 履历文字（自下而上逐渐透明，不遮挡人脸） */
.postdoc-exp-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 68%;
  display: flex;
  flex-direction: column;
  padding: 68px 22px 20px;
  background: linear-gradient(to top,
    rgba(8, 15, 30, 0.97) 0%,
    rgba(8, 15, 30, 0.88) 34%,
    rgba(8, 15, 30, 0.55) 64%,
    rgba(8, 15, 30, 0) 100%);
  pointer-events: none;
}

.postdoc-exp-head {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  margin-bottom: 10px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}

.postdoc-exp-head .material-symbols-outlined { font-size: 15px; color: #cfe6ff; }

.postdoc-exp-body {
  pointer-events: auto;
  max-height: 260px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.35) transparent;
}

/* 默认折叠：只露出 4 条，底部渐隐 */
.postdoc-exp-overlay.is-collapsed .postdoc-exp-body {
  max-height: 6.9em;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, 0) 100%);
  mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, 0) 100%);
}

.postdoc-exp-toggle {
  pointer-events: auto;
  align-self: flex-start;
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.postdoc-exp-toggle:hover { background: rgba(255, 255, 255, 0.3); }

.postdoc-exp-toggle .material-symbols-outlined {
  font-size: 16px;
  transition: transform 0.25s ease;
}

.postdoc-exp-toggle .exp-less { display: none; }

.postdoc-exp-overlay:not(.is-collapsed) .postdoc-exp-toggle .exp-more { display: none; }
.postdoc-exp-overlay:not(.is-collapsed) .postdoc-exp-toggle .exp-less { display: inline; }
.postdoc-exp-overlay:not(.is-collapsed) .postdoc-exp-toggle .material-symbols-outlined {
  transform: rotate(180deg);
}

.postdoc-exp-body::-webkit-scrollbar { width: 4px; }
.postdoc-exp-body::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.35); border-radius: 4px; }

.postdoc-exp-body ul,
.postdoc-exp-body ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.postdoc-exp-body li { padding-left: 0; }
.postdoc-exp-body p { margin: 0 0 8px; }
.postdoc-exp-body p:last-child { margin-bottom: 0; }
.postdoc-exp-body li::marker { content: none; }

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.timeline-title {
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- 渠道合作页面 ----- */
.cooperation-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.benefit-card {
  padding: 32px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition-slow);
}

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

.benefit-card .card-icon {
  margin: 0 auto 20px;
}

/* ----- 渠道合作页 - 高校合作图集 ----- */
.edu-partner-section {
  background:
    radial-gradient(1200px 480px at 12% 0%, rgba(0, 102, 255, 0.05) 0%, transparent 60%),
    radial-gradient(1000px 420px at 92% 100%, rgba(0, 198, 255, 0.05) 0%, transparent 60%);
}

.edu-intro {
  max-width: 860px;
  margin: 0 auto 60px;
  text-align: center;
  font-size: 1.125rem;
  line-height: 2;
  color: var(--text-secondary);
}

.edu-gallery { margin-bottom: 72px; }

.edu-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 32px;
}

.edu-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
  transition: all .25s;
}

.edu-tab .material-symbols-outlined { font-size: 18px; }

.edu-tab:hover { border-color: var(--primary); color: var(--primary); }

.edu-tab.active {
  background: linear-gradient(135deg, #0066FF 0%, #00C6FF 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.28);
}

.edu-gallery-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.edu-gallery-info {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.edu-gallery-info .material-symbols-outlined { font-size: 18px; color: var(--primary); }

.edu-gallery-nav {
  display: flex;
  gap: 10px;
}

.edu-nav-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}

.edu-nav-btn .material-symbols-outlined { font-size: 22px; }

.edu-nav-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.edu-nav-btn:disabled,
.edu-nav-btn[disabled] {
  opacity: .4;
  cursor: default;
  pointer-events: none;
}

.edu-waterfall {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 4px 18px;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.edu-waterfall::-webkit-scrollbar { height: 8px; }
.edu-waterfall::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 8px;
}
.edu-waterfall::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, #0066FF, #00C6FF);
  border-radius: 8px;
  border: 2px solid var(--bg-secondary);
}

.edu-waterfall { scrollbar-width: thin; scrollbar-color: #0066FF var(--bg-secondary); }

.edu-waterfall.dragging { cursor: grabbing; }

.edu-item {
  position: relative;
  flex: 0 0 auto;
  width: clamp(220px, 24vw, 330px);
  break-inside: avoid;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  cursor: zoom-in;
  box-shadow: var(--shadow-sm);
  scroll-snap-align: start;
  transition: transform .35s ease, box-shadow .35s ease, opacity .35s ease;
}

/* 横向瀑布流：利用不同的 top 偏移错落排布 */
.edu-item:nth-child(3n+1) { margin-top: 0; }
.edu-item:nth-child(3n+2) { margin-top: 30px; }
.edu-item:nth-child(3n)   { margin-top: 12px; }

.edu-item.edu-hide {
  display: none;
}

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

.edu-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform .5s ease;
}

.edu-item:hover img { transform: scale(1.04); }

.edu-zoom {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.45);
  color: #fff;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s;
}

.edu-item:hover .edu-zoom { opacity: 1; }
.edu-zoom .material-symbols-outlined { font-size: 18px; }

.edu-item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 34px 16px 12px;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.78) 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.edu-item figcaption .material-symbols-outlined { font-size: 16px; }

@media (max-width: 560px) {
  .edu-waterfall { gap: 12px; }
  .edu-item { width: 76vw; max-width: 280px; border-radius: 14px; }
  .edu-item figcaption { font-size: 12.5px; padding: 26px 12px 10px; }
}

.edu-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 72px;
}

.edu-point-card {
  position: relative;
  overflow: hidden;
  padding: 30px 26px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 18px;
  transition: all .35s;
}

.edu-point-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.04), rgba(0, 198, 255, 0.04));
  opacity: 0;
  transition: opacity .35s;
}

.edu-point-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.edu-point-card:hover::before { opacity: 1; }

.edu-point-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 198, 255, 0.1));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.edu-point-icon .material-symbols-outlined { font-size: 26px; }

.edu-point-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; position: relative; }
.edu-point-card p { font-size: 0.9rem; line-height: 1.8; color: var(--text-secondary); position: relative; }

.edu-chain {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.06), rgba(0, 198, 255, 0.06));
  border: 1px solid rgba(0, 102, 255, 0.15);
  border-radius: 24px;
  padding: 40px 32px;
  margin-bottom: 40px;
  text-align: center;
}

.edu-chain-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.edu-chain-items {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.edu-chain-item {
  flex: 0 0 auto;
  min-width: 150px;
  padding: 20px 16px;
  background: var(--bg-primary);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.edu-chain-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0066FF, #00C6FF);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.edu-chain-item h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.edu-chain-item p { font-size: 0.82rem; color: var(--text-secondary); }

.edu-chain-arrow { color: var(--primary); display: flex; align-items: center; }
.edu-chain-arrow .material-symbols-outlined { font-size: 26px; }

.edu-closing {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.125rem;
  line-height: 2;
  color: var(--text-secondary);
}

.edu-closing b { color: var(--primary); font-weight: 700; }

@media (max-width: 768px) {
  .edu-intro, .edu-closing { font-size: 1rem; }
  .edu-tabs { gap: 8px; }
  .edu-tab { padding: 8px 14px; font-size: 14px; }
  /* 培育链路：2x2 紧凑网格，去掉箭头，降低占屏高度 */
  .edu-chain { padding: 28px 16px; margin-bottom: 32px; }
  .edu-chain-title { font-size: 1.08rem; margin-bottom: 18px; }
  .edu-chain-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .edu-chain-arrow { display: none; }
  .edu-chain-item { min-width: 0; padding: 16px 10px; border-radius: 12px; }
  .edu-chain-num {
    width: 24px;
    height: 24px;
    font-size: 11px;
    margin-bottom: 6px;
  }
  .edu-chain-item h4 { font-size: 0.98rem; margin-bottom: 2px; }
  .edu-chain-item p { font-size: 0.75rem; line-height: 1.5; }
  .edu-closing { text-align: left; }
}

/* ----- 渠道合作页 - 防城港 AI 孵化基地 ----- */
.fcg-partner-section {
  background:
    radial-gradient(1200px 500px at 85% 0%, rgba(0, 198, 255, 0.06) 0%, transparent 60%),
    var(--bg-secondary);
}

.fcg-split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 56px;
}

.fcg-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: linear-gradient(135deg, #0066FF 0%, #00C6FF 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.28);
}

.fcg-badge .material-symbols-outlined { font-size: 18px; }

.fcg-split-text p {
  color: var(--text-secondary);
  line-height: 1.95;
  margin-bottom: 14px;
  font-size: 1.02rem;
}

.fcg-split-text p.fcg-lead { font-size: 1.12rem; }
.fcg-split-text p strong { color: var(--primary); font-weight: 700; }

.fcg-split-media { position: relative; }

.fcg-featured {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.16);
  background: var(--bg-primary);
  cursor: zoom-in;
}

.fcg-featured img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}

.fcg-featured:hover img { transform: scale(1.02); }

.fcg-featured figcaption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-primary);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.fcg-featured figcaption .material-symbols-outlined { font-size: 17px; color: var(--primary); }

.fcg-float-card {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 102, 255, 0.2);
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
}

.fcg-float-num {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #0066FF, #00C6FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.fcg-float-text { font-size: 12px; color: #475569; line-height: 1.55; margin-top: 2px; }

.fcg-roles { text-align: center; margin-bottom: 56px; }

.fcg-roles-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 22px;
  color: var(--text-primary);
}

.fcg-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.fcg-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 22px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  transition: all .25s;
}

.fcg-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.fcg-chip .material-symbols-outlined { font-size: 18px; color: var(--primary); }

.fcg-modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
  margin-bottom: 56px;
}

.fcg-module {
  display: flex;
  gap: 16px;
  padding: 24px 22px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all .3s;
}

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

.fcg-module-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 198, 255, 0.1));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fcg-module-icon .material-symbols-outlined { font-size: 24px; }

.fcg-module-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.fcg-module-body p { font-size: 0.9rem; line-height: 1.75; color: var(--text-secondary); }

.fcg-gallery { margin-bottom: 60px; }

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

.fcg-cell {
  position: relative;
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  cursor: zoom-in;
  aspect-ratio: 16 / 10;
  box-shadow: var(--shadow-sm);
  transition: all .35s;
}

.fcg-cell:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(0, 102, 255, 0.3);
}

.fcg-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}

.fcg-cell:hover img { transform: scale(1.04); }

.fcg-zoom {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.35);
  color: #fff;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s;
}

.fcg-cell:hover .fcg-zoom { opacity: 1; }
.fcg-zoom .material-symbols-outlined { font-size: 18px; }

.fcg-cell figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 34px 18px 14px;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.74) 100%);
  color: #fff;
  font-size: 14.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.fcg-cell figcaption .material-symbols-outlined { font-size: 16px; }

.fcg-eco {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px 28px;
  margin-bottom: 40px;
  text-align: center;
}

.fcg-eco-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.fcg-eco-line {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
}

.fcg-eco-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 110px;
}

.fcg-eco-dot {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0066FF, #00C6FF);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
  font-size: 15px;
}

.fcg-eco-step h4 { font-size: 1.05rem; font-weight: 700; }
.fcg-eco-step p { font-size: 0.8rem; color: var(--text-secondary); }

.fcg-eco-bar {
  flex: 0 0 auto;
  width: 84px;
  height: 3px;
  margin-top: 22px;
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(0, 102, 255, 0.5), rgba(0, 198, 255, 0.5));
}

.fcg-closing {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.125rem;
  line-height: 2;
  color: var(--text-secondary);
}

.fcg-closing b { color: var(--primary); font-weight: 700; }

/* ----- 夜间模式适配（高校合作 · 防城港栏目） ----- */
html[data-theme="dark"] .edu-partner-section {
  background:
    radial-gradient(1200px 480px at 12% 0%, rgba(56, 189, 248, 0.09) 0%, transparent 60%),
    radial-gradient(1000px 420px at 92% 100%, rgba(0, 198, 255, 0.06) 0%, transparent 60%);
}

html[data-theme="dark"] .fcg-partner-section {
  background:
    radial-gradient(1200px 500px at 85% 0%, rgba(56, 189, 248, 0.08) 0%, transparent 60%),
    var(--bg-secondary);
}

html[data-theme="dark"] .edu-chain,
html[data-theme="dark"] .fcg-eco {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.07), rgba(0, 198, 255, 0.04));
  border-color: rgba(56, 189, 248, 0.28);
}

html[data-theme="dark"] .edu-item,
html[data-theme="dark"] .fcg-cell,
html[data-theme="dark"] .fcg-module,
html[data-theme="dark"] .edu-chain-item {
  border-color: rgba(148, 163, 184, 0.16);
}

html[data-theme="dark"] .edu-tab:hover { color: #38BDF8; }
html[data-theme="dark"] .fcg-chip:hover { color: #38BDF8; }
html[data-theme="dark"] .fcg-chip .material-symbols-outlined { color: #38BDF8; }
html[data-theme="dark"] .fcg-float-text { color: #475569; }

@media (max-width: 768px) {
  .fcg-split { grid-template-columns: 1fr; gap: 32px; }
  /* AI-OPC 卡片悬浮于图片左上角 */
  .fcg-float-card { top: 10px; left: 10px; padding: 10px 14px; }
  .fcg-float-num { font-size: 1.05rem; }
  .fcg-float-text { font-size: 11px; }
  .fcg-grid { grid-template-columns: 1fr; }
  .fcg-roles-title { font-size: 1.02rem; }
  .fcg-chip { padding: 9px 16px; font-size: 13.5px; }
  .fcg-module-body h3 { font-size: 1rem; }
  .fcg-module-body p { font-size: 0.85rem; }
  .fcg-featured figcaption { font-size: 13px; }
  /* 闭环链路：2x2 紧凑网格 */
  .fcg-eco { padding: 28px 16px; margin-bottom: 32px; }
  .fcg-eco-title { font-size: 1.05rem; margin-bottom: 20px; }
  .fcg-eco-line {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .fcg-eco-bar { display: none; }
  .fcg-eco-step { min-width: 0; }
  .fcg-eco-dot { width: 36px; height: 36px; font-size: 13px; }
  .fcg-eco-step h4 { font-size: 0.98rem; }
  .fcg-eco-step p { font-size: 0.75rem; }
  .fcg-closing { text-align: left; font-size: 1rem; }
}

/* ----- 内容页面通用 ----- */
.content-page {
  padding: 60px 0 100px;
}

.content-page h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 20px;
  margin-top: 40px;
}

.content-page h2:first-child {
  margin-top: 0;
}

.content-page p {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.content-page ul {
  margin-bottom: 24px;
  padding-left: 20px;
}

.content-page ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.content-page ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* ----- 动画 ----- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.05); opacity: 0.3; }
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 2%); }
  50% { transform: translate(2%, -2%); }
  75% { transform: translate(-1%, -1%); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }

/* ----- 文字瀑布流 ----- */
.waterfall-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #F8FAFC 0%, #FFFFFF 100%);
  position: relative;
  overflow: hidden;
}

.waterfall-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(0, 198, 255, 0.04) 0%, transparent 40%);
}

.waterfall-grid {
  column-count: 4;
  column-gap: 20px;
  position: relative;
  z-index: 1;
}

.waterfall-group {
  break-inside: avoid;
  margin-bottom: 20px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 28px;
  transition: var(--transition-slow);
  box-shadow: var(--shadow-sm);
}

.waterfall-group:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 255, 0.2);
  transform: translateY(-4px);
}

.waterfall-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--primary);
}

.waterfall-group-title .material-symbols-outlined {
  font-size: 22px;
}

.waterfall-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.waterfall-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: var(--transition);
}

.waterfall-item:hover {
  background: rgba(0, 102, 255, 0.06);
  color: var(--primary);
  border-color: rgba(0, 102, 255, 0.15);
  transform: translateX(4px);
}

.waterfall-item .material-symbols-outlined {
  font-size: 16px;
  color: var(--primary);
}

.waterfall-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  flex-shrink: 0;
}

@media (max-width: 1024px) {
  .waterfall-grid { column-count: 3; }
}

@media (max-width: 768px) {
  .waterfall-grid { column-count: 2; }
  .waterfall-section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .waterfall-grid { column-count: 1; }
}

/* ----- 可点击卡片瀑布流（案例/新闻列表） ----- */
.waterfall-card {
  display: flex;
  flex-direction: column;
  break-inside: avoid;
  margin-bottom: 20px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-slow);
  box-shadow: var(--shadow-sm);
}

.waterfall-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 255, 0.25);
  transform: translateY(-6px);
}

.waterfall-card-image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.waterfall-card-image .material-symbols-outlined {
  font-size: 56px;
  color: #fff;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.waterfall-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.waterfall-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.waterfall-card-meta .material-symbols-outlined {
  font-size: 15px;
  vertical-align: middle;
  margin-right: 2px;
}

.waterfall-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  align-self: flex-start;
}

.waterfall-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin: 0;
}

.waterfall-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.waterfall-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  margin-top: auto;
  border-top: 1px solid var(--border);
}

.case-client {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-muted);
  max-width: 60%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.case-client .material-symbols-outlined { font-size: 14px; }

.waterfall-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}

.waterfall-card-link .material-symbols-outlined {
  font-size: 16px;
  transition: var(--transition);
}

.waterfall-card:hover .waterfall-card-link .material-symbols-outlined {
  transform: translateX(4px);
}

/* ----- 内容详情页通用 ----- */
.detail-banner-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.detail-main { min-width: 0; }

.detail-hero-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
}

.detail-hero-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-hero-icon .material-symbols-outlined { font-size: 36px; color: #fff; }

.detail-hero-tag {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
  color: #fff;
}

.detail-hero-card h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin: 0;
  line-height: 1.4;
}

.detail-info-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}

.detail-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.detail-info-item > .material-symbols-outlined {
  font-size: 22px;
  color: var(--primary);
  flex-shrink: 0;
}

.detail-info-item label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.detail-info-item strong {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 600;
}

.detail-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.detail-result-item {
  text-align: center;
  padding: 28px 16px;
  background: linear-gradient(135deg, #F8FAFC 0%, #FFFFFF 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.detail-result-value {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.detail-result-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.detail-content {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 12px 32px 32px;
}

.detail-section {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.detail-section:last-child { border-bottom: none; }

.detail-section-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.detail-section-head .material-symbols-outlined {
  color: var(--primary);
  font-size: 22px;
}

.detail-section-head h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.detail-section-body {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  white-space: pre-wrap;
}

/* 详情侧栏 */
.detail-aside {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-aside-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.detail-aside-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 18px;
}

.detail-aside-title .material-symbols-outlined {
  font-size: 20px;
  color: var(--primary);
}

.detail-aside-results {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.aside-result-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}

.aside-result-row:last-child { border-bottom: none; padding-bottom: 0; }

.aside-result-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

.aside-result-label {
  font-size: 13px;
  color: var(--text-muted);
  text-align: right;
}

.detail-aside-cta {
  text-align: center;
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
}

.cta-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cta-icon .material-symbols-outlined {
  font-size: 28px;
  color: #fff;
}

.detail-aside-cta h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.detail-aside-cta p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 20px;
}

/* 详情底部导航 */
.detail-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.detail-nav-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  max-width: 48%;
  transition: var(--transition);
}

.detail-nav-item:hover {
  border-color: rgba(0, 102, 255, 0.25);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.detail-nav-next { text-align: right; margin-left: auto; }

.detail-nav-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

.detail-nav-label .material-symbols-outlined { font-size: 14px; }

.detail-nav-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 新闻详情专用 */
.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
}

.news-detail-meta .material-symbols-outlined {
  font-size: 16px;
  vertical-align: middle;
  margin-right: 4px;
}

.news-share-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  margin-top: 8px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.news-share-info {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-share-info .material-symbols-outlined { font-size: 18px; color: var(--primary); }

.news-share-actions {
  display: flex;
  gap: 16px;
}

.news-share-actions a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

.news-share-actions .material-symbols-outlined { font-size: 16px; }

.news-aside-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-aside-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}

.news-aside-row:last-child { border-bottom: none; padding-bottom: 0; }

.news-aside-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-aside-row .material-symbols-outlined { font-size: 15px; }

/* ----- 对齐网格卡片（案例/新闻列表与首页区块） ----- */
.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.list-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: var(--transition-slow);
  box-shadow: var(--shadow-sm);
}

.list-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 255, 0.25);
  transform: translateY(-6px);
}

.list-card-image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.list-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.08) 100%);
}

.list-card-image .material-symbols-outlined {
  font-size: 52px;
  color: #fff;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
  position: relative;
  z-index: 1;
}

.list-card-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 24px 24px;
  flex: 1;
}

.list-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.list-card-meta .material-symbols-outlined {
  font-size: 15px;
  vertical-align: middle;
  margin-right: 2px;
}

.list-card-tag {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}

.list-card-pin {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  background: #FEE2E2;
  color: #991B1B;
  font-size: 12px;
  font-weight: 600;
  margin-left: 6px;
}

.list-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.45;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.list-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.list-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  margin-top: auto;
  border-top: 1px solid var(--border);
}

.list-card-client {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-muted);
  max-width: 60%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.list-card-client .material-symbols-outlined { font-size: 14px; }

.list-card-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}

.list-card-more .material-symbols-outlined {
  font-size: 16px;
  transition: var(--transition);
}

.list-card:hover .list-card-more .material-symbols-outlined {
  transform: translateX(4px);
}

/* ----- Markdown 正文渲染 ----- */
.markdown-body { font-size: 15px; color: var(--text-secondary); line-height: 1.9; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  font-family: var(--font-heading); color: var(--text-primary); margin: 1.2em 0 .6em; line-height: 1.4;
}
.markdown-body h1 { font-size: 1.6rem; } .markdown-body h2 { font-size: 1.35rem; }
.markdown-body h3 { font-size: 1.15rem; } .markdown-body h4 { font-size: 1rem; }
.markdown-body p { margin: .6em 0; }
.markdown-body ul, .markdown-body ol { margin: .6em 0; padding-left: 1.6em; }
.markdown-body ul { list-style: disc; } .markdown-body ol { list-style: decimal; }
.markdown-body li { margin: .25em 0; }
.markdown-body strong { color: var(--text-primary); font-weight: 700; }
.markdown-body blockquote { margin: .8em 0; padding: 10px 16px; border-left: 4px solid var(--primary); background: var(--bg-secondary); border-radius: 0 8px 8px 0; color: var(--text-secondary); }
.markdown-body code { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: .9em; color: var(--primary-dark); }
.markdown-body pre { background: #0F172A; color: #E2E8F0; padding: 16px; border-radius: 8px; overflow-x: auto; margin: .8em 0; }
.markdown-body pre code { background: none; color: inherit; padding: 0; }
.markdown-body a { color: var(--primary); text-decoration: underline; }
.markdown-body img { max-width: 100%; border-radius: 8px; margin: .8em 0; }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 1.2em 0; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: .8em 0; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.markdown-body th { background: var(--bg-tertiary); font-weight: 600; }

/* 人像渐变层内文字：统一亮色（覆盖 .markdown-body 的深色规则） */
.postdoc-exp-overlay .markdown-body,
.postdoc-exp-overlay .postdoc-exp-body {
  color: #fff;
  font-size: 14px;
  line-height: 1.6;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
}

.postdoc-exp-overlay .markdown-body p,
.postdoc-exp-overlay .markdown-body li {
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
}

.postdoc-exp-overlay .markdown-body strong,
.postdoc-exp-overlay .markdown-body em {
  color: #fff;
  font-weight: 700;
}

.postdoc-exp-overlay .markdown-body ul,
.postdoc-exp-overlay .markdown-body ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.postdoc-exp-overlay .markdown-body li { margin: 0; padding-left: 0; }

.postdoc-exp-overlay .markdown-body li + li { margin-top: 8px; }

.postdoc-exp-overlay .postdoc-exp-body { max-height: 260px; }

.postdoc-exp-overlay.is-collapsed .postdoc-exp-body {
  max-height: 6.9em;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, 0) 100%);
  mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, 0) 100%);
}

/* ----- 响应式 ----- */
@media (max-width: 1024px) {
  .nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-visual-main {
    max-width: 420px;
  }
  
  .about-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
  
  .team-grid-4x2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .postdoc-expert-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .postdoc-media { order: -1; }

  .postdoc-photo-wrap,
  .postdoc-photo-empty {
    min-height: 0;
    height: auto;
    aspect-ratio: 4 / 5;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  
  .section {
    padding: 64px 0;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .hero {
    padding: calc(var(--header-height) + 40px) 0 60px;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
    gap: 12px;
  }
  
  .stat-item:nth-child(2)::after,
  .stat-item:nth-child(4)::after {
    display: none;
  }
  
  .stat-item:nth-child(1)::after,
  .stat-item:nth-child(3)::after {
    display: none;
  }
  
  .stat-value {
    font-size: 2rem;
  }
  
  .products-grid,
  .features-grid,
  .cases-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .team-grid-4x2 {
    grid-template-columns: 1fr;
  }
  
  .postdoc-swiper {
    padding: 42px 0 44px;
  }

  .postdoc-swiper .swiper-slide {
    padding: 0 30px;
  }

  .postdoc-expert-card {
    padding: 22px;
    border-radius: 22px;
    gap: 20px;
  }

  .postdoc-exp-overlay {
    padding: 56px 16px 16px;
  }

  .postdoc-exp-body { max-height: 200px; font-size: 13px; }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-brand {
    max-width: 100%;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: 24px;
  }
  
  .steps {
    grid-template-columns: 1fr;
  }
  
  .step-item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-title {
    font-size: 1.9rem;
    line-height: 1.25;
    word-break: break-word;
  }
  
  .hero-subtitle {
    font-size: 0.95rem;
    line-height: 1.7;
    word-break: break-word;
  }
  
  .btn {
    width: 100%;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .header-actions .btn {
    display: none;
  }
}

/* ----- 详情页响应式 ----- */
@media (max-width: 1024px) {
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .list-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .detail-aside {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .detail-aside-card { flex: 1 1 280px; }
}

@media (max-width: 768px) {
  .detail-info-bar { grid-template-columns: 1fr 1fr; }
  .detail-results { grid-template-columns: 1fr; }
  .detail-result-value { font-size: 2rem; }
  .detail-content { padding: 8px 20px 24px; }
  .detail-hero-card { flex-direction: column; text-align: center; gap: 14px; }
  .detail-nav { flex-direction: column; }
  .detail-nav-item { max-width: 100%; }
  .detail-nav-next { text-align: left; margin-left: 0; }
  .news-share-bar { flex-direction: column; align-items: flex-start; }
  .list-grid { grid-template-columns: 1fr; }
  .waterfall-card-desc { -webkit-line-clamp: 3; line-clamp: 3; }
}

@media (max-width: 480px) {
  .detail-banner-tag { font-size: 11px; padding: 4px 12px; }
  .detail-hero-card h2 { font-size: 1.25rem; }
  .detail-info-bar { grid-template-columns: 1fr; }
  .detail-section-head h3 { font-size: 1.1rem; }
}

/* ==================== ҹ��ģʽ ==================== */
html[data-theme="dark"] {
  color-scheme: dark;
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --border: #334155;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --header-bg: rgba(15, 23, 42, 0.92);
  --header-bg-scrolled: rgba(15, 23, 42, 0.95);
  --header-border: rgba(51, 65, 85, 0.7);
}

html[data-theme="dark"] body {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* 头部与移动端菜单 */
html[data-theme="dark"] .header {
  background: var(--header-bg, rgba(15, 23, 42, 0.92));
  border-bottom-color: var(--header-border, rgba(51, 65, 85, 0.7));
}

html[data-theme="dark"] .header.scrolled {
  background: rgba(15, 23, 42, 0.95);
}

html[data-theme="dark"] .mobile-menu {
  background: rgba(15, 23, 42, 0.98);
}

html[data-theme="dark"] .hero {
  background: linear-gradient(180deg, #0B1220 0%, #0F172A 100%);
}

html[data-theme="dark"] .hero-badge {
  background: rgba(30, 41, 59, 0.8);
}

html[data-theme="dark"] .page-banner {
  background: linear-gradient(135deg, #0B1220 0%, #0F172A 100%);
}

/* ��ͼ�ֲ� / ��ʽ��Ƭ�������Dz� */
html[data-theme="dark"] .product-stream-item {
  background: var(--bg-secondary);
}

html[data-theme="dark"] .product-stream-overlay {
  background: linear-gradient(180deg, rgba(15,23,42,0.82) 0%, rgba(15,23,42,0.74) 50%, rgba(15,23,42,0.82) 100%);
}

html[data-theme="dark"] .product-section-alt .product-stream-overlay {
  background: linear-gradient(180deg, rgba(30,41,59,0.85) 0%, rgba(30,41,59,0.78) 50%, rgba(30,41,59,0.85) 100%);
}

html[data-theme="dark"] .product-bg-overlay {
  background: linear-gradient(180deg, rgba(15,23,42,0.90) 0%, rgba(15,23,42,0.80) 60%, rgba(15,23,42,0.88) 100%);
}

html[data-theme="dark"] .product-section-alt .product-bg-overlay {
  background: linear-gradient(180deg, rgba(30,41,59,0.92) 0%, rgba(30,41,59,0.82) 60%, rgba(30,41,59,0.90) 100%);
}

html[data-theme="dark"] .split-carousel {
  background: var(--bg-secondary);
  border-color: var(--border);
}

html[data-theme="dark"] .split-slide {
  background: var(--bg-secondary);
}

html[data-theme="dark"] .split-carousel .swiper-button-prev,
html[data-theme="dark"] .split-carousel .swiper-button-next {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

html[data-theme="dark"] .split-carousel .swiper-button-prev:hover,
html[data-theme="dark"] .split-carousel .swiper-button-next:hover {
  background: var(--primary);
  color: #fff;
}

html[data-theme="dark"] .split-carousel .swiper-pagination-bullet {
  background: rgba(148, 163, 184, 0.45);
}

html[data-theme="dark"] .split-carousel .swiper-pagination-bullet-active {
  background: var(--primary-light);
  box-shadow: 0 2px 8px rgba(56, 189, 248, 0.4);
}

html[data-theme="dark"] .triple-gallery .swiper-slide {
  background: linear-gradient(135deg, #1E293B 0%, #334155 100%);
}

html[data-theme="dark"] .triple-gallery .swiper-button-prev,
html[data-theme="dark"] .triple-gallery .swiper-button-next {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border);
}

html[data-theme="dark"] .triple-gallery .swiper-button-prev:hover,
html[data-theme="dark"] .triple-gallery .swiper-button-next:hover {
  background: var(--primary);
  color: #fff;
}

html[data-theme="dark"] .gradient-border {
  background: var(--bg-primary);
}

/* ���������ڰ�ɫ�¼��� */
html[data-theme="dark"] .section-gradient {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.06) 100%);
}

/* ҳ�ű�����ɫ */
html[data-theme="dark"] .footer {
  background: #0B1220;
}

/* �ö���ǩ */
html[data-theme="dark"] .list-card-pin {
  background: rgba(239, 68, 68, 0.16);
  color: #FCA5A5;
}

/* ��Ƭͼ��dzɫ������� */
html[data-theme="dark"] .card-icon,
html[data-theme="dark"] .feature-icon,
html[data-theme="dark"] .step-icon {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.18) 0%, rgba(0, 198, 255, 0.16) 100%);
}

html[data-theme="dark"] .product-card:hover,
html[data-theme="dark"] .feature-item:hover,
html[data-theme="dark"] .list-card:hover,
html[data-theme="dark"] .step-item:hover,
html[data-theme="dark"] .card:hover {
  border-color: rgba(0, 102, 255, 0.35);
}

html[data-theme="dark"] .nav-link:hover,
html[data-theme="dark"] .nav-link.active {
  background: rgba(0, 102, 255, 0.15);
}

html[data-theme="dark"] .list-card-image::after {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.25) 100%);
}

/* ����ҳ Hero */
html[data-theme="dark"] .detail-hero-card {
  background: var(--bg-secondary);
  border-color: var(--border);
}

html[data-theme="dark"] .markdown-body pre {
  background: #0B1220;
  border: 1px solid var(--border);
}

/* ������ͼ Hero ��ɫ�ײ����� */
html[data-theme="dark"] .about-hero {
  background: linear-gradient(180deg, #0B1220 0%, #0F172A 100%);
}

/* ==================== ҹ��ģʽ �� ���串�� ==================== */

/* ��ʿ��Ƭ */
html[data-theme="dark"] .postdoc-expert-card {
  background: var(--bg-primary);
  border-color: #334155;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

html[data-theme="dark"] .postdoc-photo-empty {
  background: linear-gradient(135deg, #1E293B 0%, #334155 100%);
}

html[data-theme="dark"] .postdoc-tag-outline {
  background: var(--bg-primary);
}

html[data-theme="dark"] .postdoc-photo-badge {
  background: rgba(30, 41, 59, 0.95);
}

/* �����������ע��Ƭ / ������Ϣ�ȣ� */
html[data-theme="dark"] .detail-aside-cta {
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
}

html[data-theme="dark"] .detail-aside-cta .btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
}

html[data-theme="dark"] .detail-result-item {
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
}

/* ������Ϣ�� / �������ڰ�ɫ���ôα��� */
html[data-theme="dark"] .detail-info-bar,
html[data-theme="dark"] .news-share-bar {
  background: var(--bg-secondary);
}

/* �����������ķ�����Ӱ���� */
html[data-theme="dark"] .detail-content img,
html[data-theme="dark"] .markdown-body img {
  opacity: 0.92;
}

/* ������ hover */
html[data-theme="dark"] .breadcrumb a:hover {
  color: var(--primary-light);
}

/* ==================== ҹ��ģʽ �� �ٲ���ҵ��ȫ�� ==================== */
html[data-theme="dark"] .waterfall-section {
  background: linear-gradient(135deg, #0B1220 0%, #0F172A 100%);
}

html[data-theme="dark"] .waterfall-section::before {
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 102, 255, 0.10) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(0, 198, 255, 0.10) 0%, transparent 40%);
}

html[data-theme="dark"] .waterfall-item {
  background: var(--bg-secondary);
}

html[data-theme="dark"] .waterfall-item:hover {
  background: rgba(0, 102, 255, 0.15);
}

/* ==================== �ƶ������岼���Ż� ==================== */

/* ��ֹ�κ�Ԫ�غ�������������Ƕ���Ԫ�أ� */
html, body { max-width: 100%; overflow-x: hidden; }

/* С���� hero �Ӿ���ͼ��С�����⶯��Բ����� */
@media (max-width: 480px) {
  .hero-visual-main { max-width: 300px; }
  .hero-visual-logo { width: 62%; }
  .hero-badge { font-size: 12px; padding: 6px 12px; }
  .hero-subtitle { font-size: 1rem; }
  .hero-stat-value { font-size: 1.6rem; }
  .section-title { font-size: 1.6rem; }
  .section-desc { font-size: 0.95rem; }
  .product-card { padding: 22px; }
  .product-card .card-title { font-size: 1.1rem; }
  .feature-item { padding: 20px; }
  .step-item { padding: 24px; }
}

/* Ӣ�ij�����/���ı��Զ����У������������ */
.section-desc, .card-text, .feature-content p, .step-text, .list-card-desc,
.hero-subtitle, .about-hero-subtitle, .detail-banner-desc, .markdown-body {
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ��ҳ CTA �绰��ť��խ������Ӧ */
@media (max-width: 480px) {
  .hero-actions .btn { width: 100%; }
}

/* �б���ƬͼƬ�߶���С������ */
@media (max-width: 480px) {
  .list-card-image { height: 120px; }
}

/* ����ҳ hero ��Ƭͼ����խ������ */
@media (max-width: 480px) {
  .detail-hero-icon { width: 52px; height: 52px; }
  .detail-hero-icon .material-symbols-outlined { font-size: 28px; }
}

/* �ٲ�����ǩ��խ������ */
@media (max-width: 480px) {
  .waterfall-group { padding: 20px; }
  .waterfall-group-title { font-size: 1rem; }
  .waterfall-item { font-size: 12px; padding: 8px 10px; }
}

/* ����������ƿ�Ƭ��խ�� */
@media (max-width: 480px) {
  .benefit-card { padding: 22px; }
}

/* ����ҳ��ʿ��Ƭ��խ�� */
@media (max-width: 480px) {
  .postdoc-block { padding: 18px; }
  .postdoc-swiper { padding: 38px 0 40px; }
  .postdoc-swiper .swiper-slide { padding: 0 12px; }
  .postdoc-expert-card { padding: 16px; gap: 16px; border-radius: 20px; }
  .postdoc-exp-overlay { padding: 48px 12px 12px; }
  .postdoc-exp-head { margin-bottom: 6px; padding: 5px 11px; font-size: 12px; }
  .postdoc-exp-body { max-height: 170px; font-size: 12.5px; }
}

/* 博士后相关窄屏微调 */
@media (max-width: 560px) {
  .postdoc-member-name { font-size: 1.25rem; }
  .postdoc-member-title { font-size: 12px; }
}

/* ����/����������������խ������ */
@media (max-width: 480px) {
  .detail-banner-title { font-size: 1.5rem; }
}

/* �ƶ��˽��ò���Ҫ�ĸ��Ӷ��������ٿ������Ҷ��� */
@media (max-width: 768px) {
  .hero-visual-logo { animation-duration: 8s; }
  .triple-gallery .swiper-slide { transition-duration: .45s; }
}

/* �����豸���� hover ���ţ������� */
@media (hover: none) {
  .card:hover, .product-card:hover, .feature-item:hover, .list-card:hover,
  .step-item:hover, .benefit-card:hover { transform: none; }
}

/* ==================== �ƶ�������޸����ؼ��� ==================== */
html, body {
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}
.hero-inner, .hero-content, .about-hero-inner, .about-hero-body,
.detail-main, .detail-aside, .contact-grid, .contact-info, .contact-form,
.product-split-text, .product-split-media, .waterfall-grid, .waterfall-group {
  min-width: 0;
}

/* խ���µ�������ȷ�����а�ť�ɼ������ */
@media (max-width: 640px) {
  .header-inner { gap: 8px; }
  .logo { flex-shrink: 1; min-width: 0; }
  .logo-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
}
@media (max-width: 480px) {
  .logo-name { max-width: 90px; font-size: 1rem; }
  .header-icon-btn { width: 34px; height: 34px; }
  .menu-toggle { width: 34px; height: 34px; }
}
@media (max-width: 380px) {
  .header-actions { gap: 4px; }
  .lang-toggle-btn { font-size: 11px; min-width: 0; padding: 0 2px; }
  .lang-toggle-btn .lang-opt { padding: 3px 5px; }
  .logo-name { max-width: 74px; }
}

/* ��ҳ Hero ��������κκ������ */
.hero { overflow-x: hidden; }
.hero-bg { overflow: hidden; }
.hero-grid { max-width: 100%; }

/* ==================== ͼƬ�Ŵ�鿴 Lightbox ==================== */
.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(2, 8, 20, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.image-lightbox.open {
  opacity: 1;
  visibility: visible;
}
.image-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s;
  z-index: 2;
}
.image-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(90deg);
}
.image-lightbox-close .material-symbols-outlined { font-size: 24px; }
.image-lightbox-stage {
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-lightbox-stage img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
  animation: lightboxZoom .3s ease;
}
@keyframes lightboxZoom {
  from { transform: scale(.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@media (max-width: 480px) {
  .image-lightbox { padding: 16px; }
  .image-lightbox-close { top: 14px; right: 14px; }
}

/* ==================== FAQ 常见问题页 ==================== */
.faq-section { padding-top: 48px; }
.faq-section .container { max-width: 960px; }

/* 搜索 + 分类筛选 */
.faq-toolbar {
  position: sticky;
  top: 88px;
  z-index: 30;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 20px 22px;
  margin-bottom: 40px;
}
.faq-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 12px 18px;
  background: var(--bg-secondary);
  transition: border-color .2s, box-shadow .2s;
}
.faq-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}
.faq-search .material-symbols-outlined { color: var(--text-muted); font-size: 22px; flex-shrink: 0; }
.faq-search input {
  flex: 1;
  min-width: 0;
  border: none;
  background: none;
  outline: none;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-primary);
}
.faq-search-clear {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: transparent;
}
.faq-search-clear:hover { background: var(--border); color: var(--text-primary); }
.faq-search-clear .material-symbols-outlined { font-size: 18px; }

.faq-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.faq-pill {
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all .2s;
}
.faq-pill:hover { border-color: var(--primary); color: var(--primary); }
.faq-pill.active {
  background: linear-gradient(135deg, #0066FF 0%, #00C6FF 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.28);
}

.faq-empty {
  text-align: center;
  padding: 32px 0 8px;
  color: var(--text-muted);
}
.faq-empty .material-symbols-outlined { font-size: 44px; display: block; margin-bottom: 8px; }
.faq-empty p { margin-bottom: 16px; font-size: 14px; }

/* 分类区块 */
.faq-category { margin-bottom: 48px; scroll-margin-top: 170px; }
.faq-category-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.faq-category-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.22);
}
.faq-category-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.3;
}
.faq-category-count { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

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

/* 折叠问答 */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item:hover { border-color: rgba(0, 102, 255, 0.35); }
.faq-item[open] {
  border-color: rgba(0, 102, 255, 0.45);
  box-shadow: var(--shadow);
}
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q-badge {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  background: linear-gradient(135deg, #0066FF 0%, #00C6FF 100%);
  color: #fff;
}
.faq-question {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.6;
}
.faq-toggle {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: transform .25s, background .2s;
}
.faq-item[open] .faq-toggle { transform: rotate(180deg); color: var(--primary); }
.faq-toggle .material-symbols-outlined { font-size: 20px; }

.faq-answer {
  display: flex;
  gap: 12px;
  padding: 0 20px 20px 62px;
}
.faq-a-badge {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  background: var(--bg-secondary);
  color: var(--primary);
  border: 1px solid var(--border);
  margin-top: 2px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
}

/* 底部联系 CTA */
.faq-cta {
  margin-top: 16px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.06) 0%, rgba(0, 198, 255, 0.06) 100%);
  border: 1px solid rgba(0, 102, 255, 0.15);
  padding: 28px;
}
.faq-cta-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.faq-cta-inner > .material-symbols-outlined {
  font-size: 40px;
  color: var(--primary);
  flex-shrink: 0;
}
.faq-cta-inner h2 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 800; margin-bottom: 4px; }
.faq-cta-inner p { font-size: 14px; color: var(--text-secondary); }
.faq-cta-inner > div:nth-child(2) { flex: 1; min-width: 220px; }
.faq-cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

@media (max-width: 768px) {
  .faq-toolbar { position: static; padding: 16px; }
  .faq-answer { padding-left: 20px; }
  .faq-category { margin-bottom: 36px; }
  .faq-cta-inner > div:nth-child(2) { flex-basis: 100%; }
}

/* ==================== 业务详情页（business detail） ==================== */
.biz-page { --biz-accent: #0066FF; }

/* --- Hero --- */
.biz-hero {
  position: relative;
  padding: calc(var(--header-height) + 104px) 0 64px;
  overflow: hidden;
  background: var(--bg-primary);
}
.biz-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.biz-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}
.biz-hero-orb-1 { width: 480px; height: 480px; top: -160px; right: -80px; background: var(--biz-accent); }
.biz-hero-orb-2 { width: 360px; height: 360px; bottom: -140px; left: -100px; background: var(--biz-accent); opacity: 0.18; }
.biz-hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.4;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 70% 20%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 80% at 70% 20%, #000 20%, transparent 75%);
}
.biz-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.biz-hero-breadcrumb {
  grid-column: 1 / -1;
  justify-content: center;
  margin-bottom: 30px;
  padding-top: 4px;
}
.biz-hero-text { min-width: 0; }
.biz-hero .breadcrumb { margin-bottom: 20px; }
.biz-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid color-mix(in srgb, var(--biz-accent) 35%, transparent);
  background: color-mix(in srgb, var(--biz-accent) 8%, transparent);
  color: var(--biz-accent);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
}
.biz-hero-badge .material-symbols-outlined { font-size: 18px; }
.biz-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.biz-hero-sub {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--biz-accent);
  margin: 12px 0 18px;
  line-height: 1.5;
}
.biz-hero-abstract {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 60ch;
  margin-bottom: 26px;
}
.biz-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.biz-hero-visual { min-width: 0; }
.biz-hero-frame {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  box-shadow: 0 24px 70px -28px color-mix(in srgb, var(--biz-accent) 55%, transparent);
  aspect-ratio: 4 / 3;
}
.biz-hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.biz-hero-frame-ph {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 24px;
  background:
    radial-gradient(120% 120% at 80% 0%, color-mix(in srgb, var(--biz-accent) 22%, transparent), transparent 60%),
    var(--bg-secondary);
}
.biz-hero-frame-ph .material-symbols-outlined { font-size: 64px; color: var(--biz-accent); }
.biz-hero-frame-ph strong { font-size: 15px; color: var(--text-primary); }
.biz-hero-frame-ph small { font-size: 12px; color: var(--text-muted); line-height: 1.6; max-width: 26em; }
.biz-hero-caption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.6;
  text-align: center;
  width: 100%;
}

/* --- 正文 --- */
.biz-body { padding: 56px 0 72px; background: var(--bg-primary); }
.biz-body-inner { max-width: 980px; }

.biz-h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 56px 0 22px;
}
.biz-h2:first-child { margin-top: 0; }
.biz-h2-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--biz-accent) 0%, color-mix(in srgb, var(--biz-accent) 70%, #fff) 100%);
  color: #fff;
}
.biz-h2-icon .material-symbols-outlined { font-size: 22px; }
.biz-h2 h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
}
.biz-h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
  margin-left: 8px;
}

.biz-h3 { display: flex; align-items: center; gap: 10px; margin: 26px 0 12px; }
.biz-h3-icon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--biz-accent) 12%, transparent);
  color: var(--biz-accent);
}
.biz-h3-icon .material-symbols-outlined { font-size: 18px; }
.biz-h3 h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.biz-p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 72ch;
  margin: 0 0 14px;
}

/* 勾选清单 */
.biz-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 28px;
  margin: 6px 0 18px;
}
.biz-checklist li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.8;
}
.biz-check {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--biz-accent) 12%, transparent);
  color: var(--biz-accent);
  margin-top: 3px;
}
.biz-check .material-symbols-outlined { font-size: 15px; }

/* 编号列表 */
.biz-numlist { margin: 6px 0 18px; display: flex; flex-direction: column; gap: 12px; }
.biz-numlist li { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--text-primary); line-height: 1.8; }
.biz-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  background: var(--biz-accent);
  color: #fff;
}

/* 合作模式双卡 */
.biz-modes { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 6px 0 20px; }
.biz-mode-card {
  position: relative;
  padding: 26px 26px 26px 78px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  overflow: hidden;
}
.biz-mode-num {
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  color: color-mix(in srgb, var(--biz-accent) 22%, transparent);
  line-height: 1;
}
.biz-mode-card h3 { font-size: 1.02rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.biz-mode-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* 对比（传统SEO vs AIGEO） */
.biz-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 6px 0 20px; }
.biz-compare-col { border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg-secondary); padding: 22px; }
.biz-compare-col-accent {
  border-color: color-mix(in srgb, var(--biz-accent) 35%, transparent);
  background: linear-gradient(160deg, color-mix(in srgb, var(--biz-accent) 8%, transparent), var(--bg-secondary) 55%);
}
.biz-compare-head {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.biz-compare-col-accent .biz-compare-head { color: var(--biz-accent); }
.biz-compare-col ul { display: flex; flex-direction: column; gap: 10px; }
.biz-compare-col li { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.biz-compare-col li .material-symbols-outlined { font-size: 18px; flex-shrink: 0; color: var(--text-muted); }
.biz-compare-col-accent li .material-symbols-outlined { color: var(--biz-accent); }

/* 证书工种分组 */
.biz-cert-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 6px 0 20px; }
.biz-cert-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 24px;
}
.biz-cert-head { margin-bottom: 16px; }
.biz-cert-head h3 { font-size: 1.05rem; font-weight: 800; color: var(--text-primary); margin-bottom: 6px; }
.biz-cert-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--biz-accent);
  background: color-mix(in srgb, var(--biz-accent) 10%, transparent);
  padding: 4px 10px;
  border-radius: 100px;
}
.biz-cert-list { display: flex; flex-direction: column; gap: 10px; }
.biz-cert-list li { display: flex; gap: 8px; align-items: center; font-size: 14px; color: var(--text-primary); }
.biz-cert-list li .material-symbols-outlined { font-size: 18px; color: var(--biz-accent); flex-shrink: 0; }

/* 案例摘要 */
.biz-case {
  border-radius: var(--radius-xl);
  border: 1px solid color-mix(in srgb, var(--biz-accent) 30%, transparent);
  background: linear-gradient(160deg, color-mix(in srgb, var(--biz-accent) 7%, transparent), var(--bg-secondary) 60%);
  padding: 26px;
  margin: 6px 0 20px;
}
.biz-case-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 18px;
}
.biz-case-name .material-symbols-outlined { color: var(--biz-accent); }
.biz-case-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.biz-case-col { padding: 16px; border-radius: var(--radius-lg); background: var(--bg-primary); border: 1px solid var(--border); }
.biz-case-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.biz-case-label .material-symbols-outlined { font-size: 17px; }
.biz-case-col-result { border-color: color-mix(in srgb, var(--biz-accent) 45%, transparent); }
.biz-case-col-result .biz-case-label { color: var(--biz-accent); }
.biz-case-col p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* 图片插槽 */
.biz-img { margin: 26px 0; }
.biz-img-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.biz-img-grid .biz-img-item { min-width: 0; }
.biz-img-item img {
  width: 100%;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  display: block;
  box-shadow: var(--shadow);
}
.biz-img-ph {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 240px;
  border-radius: 20px;
  border: 1px dashed color-mix(in srgb, var(--biz-accent) 40%, var(--border));
  background:
    radial-gradient(120% 120% at 80% 0%, color-mix(in srgb, var(--biz-accent) 12%, transparent), transparent 60%),
    var(--bg-secondary);
  text-align: center;
  padding: 24px;
}
.biz-img-ph .material-symbols-outlined { font-size: 48px; color: var(--biz-accent); }
.biz-img-ph strong { font-size: 14px; color: var(--text-secondary); }
.biz-img figcaption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
  text-align: center;
  line-height: 1.6;
  width: 100%;
}

/* FAQ（复用 faq-item 组件） */
.biz-faq { display: flex; flex-direction: column; gap: 12px; margin: 6px 0 10px; }
.biz-faq .faq-item { max-width: none; }

/* 后台 Markdown 正文渲染 */
.biz-markdown { font-size: 15px; color: var(--text-secondary); line-height: 1.9; }
.biz-markdown h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 48px 0 18px;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
}
.biz-markdown h2::before {
  content: "";
  width: 8px;
  height: 26px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--biz-accent) 0%, color-mix(in srgb, var(--biz-accent) 60%, #fff) 100%);
  flex-shrink: 0;
}
.biz-markdown h3 {
  font-family: var(--font-subheading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 26px 0 10px;
}
.biz-markdown h4 { font-family: var(--font-subheading); font-size: 1rem; font-weight: 700; color: var(--text-primary); margin: 20px 0 8px; }
.biz-markdown p { margin: 0 0 14px; }
.biz-markdown ul, .biz-markdown ol { margin: 0 0 16px; padding-left: 1.5em; }
.biz-markdown ul { list-style: none; padding-left: 0; }
.biz-markdown ul li { position: relative; padding-left: 28px; margin-bottom: 10px; line-height: 1.8; }
.biz-markdown ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--biz-accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--biz-accent) 45%, transparent);
}
.biz-markdown ol li { margin-bottom: 10px; line-height: 1.8; }
.biz-markdown strong { color: var(--text-primary); }
.biz-markdown a { color: var(--biz-accent); text-decoration: underline; }
.biz-markdown blockquote {
  margin: 18px 0;
  padding: 14px 18px;
  border-left: 4px solid var(--biz-accent);
  background: color-mix(in srgb, var(--biz-accent) 6%, var(--bg-secondary));
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
}
.biz-markdown img {
  display: block;
  max-width: 100%;
  margin: 20px auto;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.biz-markdown table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.biz-markdown th, .biz-markdown td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.biz-markdown th { background: color-mix(in srgb, var(--biz-accent) 8%, transparent); font-weight: 700; color: var(--text-primary); }
.biz-markdown hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }

/* 底部咨询入口 */
.biz-cta { padding: 24px 0 88px; background: var(--bg-primary); }
.biz-cta-card {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 30px 34px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, color-mix(in srgb, var(--biz-accent) 12%, transparent) 0%, color-mix(in srgb, var(--biz-accent) 4%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--biz-accent) 28%, transparent);
}
.biz-cta-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--biz-accent) 0%, color-mix(in srgb, var(--biz-accent) 70%, #fff) 100%);
  color: #fff;
}
.biz-cta-icon .material-symbols-outlined { font-size: 28px; }
.biz-cta-text { flex: 1; min-width: 240px; }
.biz-cta-text h2 { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 800; margin-bottom: 6px; color: var(--text-primary); }
.biz-cta-text p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
.biz-cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* 响应式 */
@media (max-width: 1024px) {
  .biz-hero { padding-top: 132px; }
  .biz-hero-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .biz-body-inner { max-width: none; }
  .biz-checklist, .biz-modes, .biz-compare, .biz-cert-groups, .biz-case-cols, .biz-img-grid { grid-template-columns: 1fr; }
  .biz-mode-card { padding-left: 26px; padding-top: 58px; }
  .biz-mode-num { top: 20px; left: 22px; transform: none; }
  .biz-cta { padding-bottom: 64px; }
}

/* ==================== 字体体系（大标题得意黑 / 小标题思源宋体 / 正文思源黑体） ==================== */
h3, h4,
.footer-title,
.team-name, .team-school,
.step-title, .step-item h3,
.feature-content h3,
.contact-card h3,
.product-card h3,
.product-card .card-title,
.timeline-title,
.postdoc-member-name,
.waterfall-group-title,
.waterfall-card-title,
.detail-section-head h3,
.detail-aside-title,
.detail-aside-cta h3,
.list-card-title,
.faq-category-title,
.biz-h3 h3,
.biz-mode-card h3,
.biz-cert-head h3,
.biz-case-name,
.markdown-body h3,
.markdown-body h4 {
  font-family: var(--font-subheading);
}

/* ============================================================ */
/* ========= 竖屏 / 窄屏适配：防换行孤字优化（2026-09） ========= */
/* ============================================================ */
/* 标题类：两端对齐平衡换行，避免最后一行只剩一两个字 */
h1, h2, h3, h4,
.section-title, .section-label, .page-banner-title,
.hero-title, .hero-title span, .hero-badge,
.list-card-title, .step-title, .feature-content h3,
.biz-block h2, .biz-block h3, .detail-section-title {
  text-wrap: balance;
}
/* 正文类：避免段落尾行出现孤字 */
.section-desc, .page-banner-desc, .hero-subtitle, .hero-stat-label,
.stat-label, .step-text, .feature-content p, .list-card-desc,
.list-card-more, .page-banner-desc strong, .markdown-body p,
.markdown-body li, .footer-intro, .footer-tagline, .detail-meta,
.biz-block p, .biz-hero-desc, .case-info-panel dt, .case-info-panel dd {
  text-wrap: pretty;
}
/* 按钮与徽章禁止换行 */
.btn, .hero-badge, .list-card-tag, .list-card-more,
.detail-banner-tag, .section-label {
  white-space: nowrap;
}
/* 数字+说明的数据项禁止换行 */
.hero-stat, .stat-item { min-width: max-content; }
.hero-stat-value, .stat-value { white-space: nowrap; }
/* 移动端菜单项不换行（竖屏不影响） */
.mobile-menu .nav-link { white-space: nowrap; }