/**
 * TechInnovate — 科技创新企业展示官网
 * 蓝白科技基调：白底 + 科技蓝(#0A6BFF) + 深灰 + 亮青点缀
 * 毛玻璃卡片 + 大留白 + 数据流动效
 * 纯原生 CSS，无框架依赖
 * ============================================================ */

/* Inter 字体：优化英文/数字渲染，中文回退 PingFang SC / Microsoft YaHei UI */


/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* === 品牌色 === */
  --primary: #0A6BFF;
  --primary-dark: #0052CC;
  --primary-light: #E8F1FF;
  --primary-dim: rgba(10, 107, 255, 0.08);

  /* === 辅助色 === */
  --accent-cyan: #00C9DB;
  --accent-green: #10B981;
  --accent-orange: #F59E0B;
  --accent-purple: #7C3AED;

  /* === 背景色阶 === */
  --bg-white: #FFFFFF;
  --bg-gray-50: #F8FAFC;
  --bg-gray-100: #F1F5F9;
  --bg-gray-200: #E2E8F0;

  /* === 文字色阶 === */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-white: #FFFFFF;

  /* === 边框 === */
  --border-light: #E2E8F0;
  --border-medium: #CBD5E1;
  --border-blue: rgba(10, 107, 255, 0.2);

  /* === 阴影 === */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.1);
  --shadow-blue: 0 4px 20px rgba(10, 107, 255, 0.15);
  --shadow-cyan: 0 4px 20px rgba(0, 201, 219, 0.12);

  /* === 圆角 === */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* === 字体 === */
  --font-sans: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei UI', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* === 间距 === */
  --section-gap: 100px;
  --container-max: 1280px;
  --header-height: 72px;

  /* === 过渡 === */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--duration-fast) var(--ease-out);
}

ul, ol { list-style: none; }

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

/* ============================================================
   通用区块
   ============================================================ */
.section {
  padding: var(--section-gap) 0;
}

.section--gray {
  background: var(--bg-gray-50);
}

.section--blue {
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-white) 100%);
}

.section--dark {
  background: var(--text-primary);
  color: var(--text-white);
}

/* 区块标签 */
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

/* 区块标题 */
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

/* 区块头部居中 */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-subtitle {
  margin: 0 auto;
}

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--primary);
  color: var(--text-white);
  box-shadow: var(--shadow-blue);
}
.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(10, 107, 255, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--outline:hover {
  background: var(--primary);
  color: var(--text-white);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--bg-white);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}
.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--ghost {
  background: transparent;
  color: var(--primary);
}
.btn--ghost:hover {
  background: var(--primary-dim);
}

.btn--lg {
  padding: 15px 36px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn i { font-size: 0.9em; }

/* 脉冲动画按钮 */
.btn--pulse {
  animation: btnPulse 2.5s ease-out infinite;
}
@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(10, 107, 255, 0.4); }
  50% { box-shadow: 0 0 0 16px rgba(10, 107, 255, 0); }
}

/* ============================================================
   Header — 毛玻璃导航
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(10, 107, 255, 0.08);
  transition: all var(--duration-normal) var(--ease-out);
}

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

.header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.header__logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}
.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.header__logo-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.header__logo-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header__nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}
.header__nav-link:hover,
.header__nav-link.active {
  color: var(--primary);
  background: var(--primary-dim);
}

/* 下拉菜单 */
.header__nav-item {
  position: relative;
}
.header__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 60;
}
.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.header__dropdown a {
  display: block;
  padding: 10px 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all var(--duration-fast);
}
.header__dropdown a:hover {
  color: var(--primary);
  background: var(--primary-dim);
}

/* 右侧操作区 */
.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header__cta {
  padding: 8px 20px;
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-out);
}
.header__cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-blue);
}

/* ★ 汉堡菜单：独立于 header__actions (13.4) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  position: relative;
  z-index: 110;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单 */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100vh;
  background: var(--bg-white);
  box-shadow: var(--shadow-xl);
  z-index: 105;
  padding: 80px 24px 40px;
  overflow-y: auto;
  transition: right var(--duration-slow) var(--ease-out);
}
.mobile-nav.open { right: 0; }

.mobile-nav__link {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
}
.mobile-nav__link:hover { background: var(--primary-dim); color: var(--primary); }

.mobile-nav__sub {
  padding-left: 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}
.mobile-nav__sub.open { max-height: 500px; }
.mobile-nav__sub a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
}
.mobile-nav__sub a:hover { color: var(--primary); }

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal);
}
.mobile-nav__overlay.open { opacity: 1; visibility: visible; }

/* ============================================================
   Hero Banner — 全屏科技感
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
  background: var(--text-primary);
}

/* Swiper 背景 */
.hero-swiper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero__slide {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* 多层遮罩 */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.45) 0%,
    rgba(15, 23, 42, 0.25) 40%,
    rgba(15, 23, 42, 0.6) 100%
  );
  z-index: 2;
}

/* 网格科技感线条 */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 107, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 107, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
  pointer-events: none;
}

/* 文字内容 */
.hero__content {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 0 24px;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 800px;
}
.hero__title span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero__actions .btn--outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.hero__actions .btn--outline:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

/* Swiper分页器 */
.hero-pagination {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  gap: 10px;
}
.hero-pagination .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 1;
  border-radius: 6px;
  transition: all var(--duration-normal);
}
.hero-pagination .swiper-pagination-bullet-active {
  background: var(--primary);
  width: 32px;
}

/* 滚动指示器 */
.hero__scroll {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero__scroll span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(0.5); transform-origin: bottom; }
}

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 320px;
  overflow: hidden;
  margin-top: var(--header-height);
  background: var(--text-primary);
}
.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
}
.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.85) 100%);
  z-index: 1;
}
.inner-banner__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: 0 24px;
}
.inner-banner__title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.inner-banner__subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
}
.inner-banner__subtitle:empty { display: none; }

/* 面包屑 */
.breadcrumb-bar {
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-gray-50);
}
.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 14px 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 0.6rem; color: var(--text-muted); }

/* ============================================================
   数据统计条
   ============================================================ */
.stats-bar {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--primary), #0055DD);
  position: relative;
  overflow: hidden;
}
.stats-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.stat-item__number {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.stat-item__label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
}

/* ============================================================
   卡片系统 — 产品/案例/新闻
   ============================================================ */

/* 网格布局 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }

/* 首页"核心产品"固定2列(PC/手机一致，配4条展示为整齐2×2) */
.card-grid.card-grid--home-prod { grid-template-columns: repeat(2, 1fr); }

/* 基础卡片 */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-blue);
}

/* 图片区 */
.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-gray-100);
}
.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.card:hover .card__image img {
  transform: scale(1.05);
}

/* 文字区 */
.card__body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: var(--radius-xs);
  margin-bottom: 10px;
  align-self: flex-start;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}
.card__meta i { color: var(--primary); font-size: 0.75rem; }

/* 产品卡片特殊样式 */
.card--product {
  border-top: 3px solid var(--primary);
}
.card--product .card__image {
  background: linear-gradient(135deg, #f0f6ff 0%, #e8f1ff 100%);
}

/* 案例卡片 */
.card--case .card__image {
  background: var(--bg-gray-50);
}
.card--case .card__image img {
  object-fit: contain;
  padding: 20px;
}

/* 新闻卡片 */
.card--news .card__image {
  aspect-ratio: 16 / 9;
}

/* ============================================================
   关于我们 — 图文混排
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.about-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--primary);
  border-radius: var(--radius-xl);
  transform: translate(16px, 16px);
  z-index: -1;
  opacity: 0.2;
}
.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
}
.about-stat h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.about-stat p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================================
   产品详情页
   ============================================================ */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.product-detail__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-gray-50);
  position: sticky;
  top: calc(var(--header-height) + 30px);
}
.product-detail__image img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.product-detail__info h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.product-detail__info .section-subtitle {
  margin-bottom: 32px;
}

/* 扩展字段参数表 */
.param-list {
  display: grid;
  gap: 16px;
  margin-bottom: 32px;
}
.param-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-gray-50);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
}
.param-item__icon {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.param-item__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.param-item__value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================================
   详情页通用样式
   ============================================================ */
.detail__header {
  text-align: center;
  margin-bottom: 40px;
}
.detail__header h1 {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.detail__meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.detail__meta span { display: flex; align-items: center; gap: 6px; }
.detail__meta i { color: var(--primary); font-size: 0.75rem; }

.detail__body {
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.9;
  color: var(--text-secondary);
  font-size: 1rem;
}
.detail__body img {
  border-radius: var(--radius-md);
  margin: 24px 0;
}
.detail__body h2, .detail__body h3 {
  color: var(--text-primary);
  margin-top: 32px;
  margin-bottom: 12px;
}
.detail__body p { margin-bottom: 16px; }

/* 上一篇/下一篇 */
.prev-next {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  max-width: 860px;
  margin: 60px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
  font-size: 0.9rem;
}
.prev-next a {
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}
.prev-next a:hover { color: var(--primary); }

/* ============================================================
   案例列表 — Logo网格
   ============================================================ */
.case-logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.case-logo-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  transition: all var(--duration-normal) var(--ease-out);
}
.case-logo-card:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.case-logo-card__img {
  width: 120px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-logo-card__img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.case-logo-card__name {
  font-weight: 600;
  color: var(--text-primary);
}
.case-logo-card__tag {
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 10px;
  border-radius: var(--radius-xs);
}

/* ============================================================
   CTA 区域
   ============================================================ */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), #0055DD);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.cta-section .section-tag {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}
.cta-section__title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  margin-bottom: 32px;
}
.cta-section .btn--white {
  font-size: 1rem;
  padding: 15px 36px;
}

/* ============================================================
   技术亮点卡片
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-blue);
}
.feature-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary-light), rgba(0, 201, 219, 0.08));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  transition: transform var(--duration-normal) var(--ease-out);
}
.feature-card:hover .feature-card__icon {
  transform: scale(1.1);
}
.feature-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.feature-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   订阅区域
   ============================================================ */
.subscribe-card {
  background: linear-gradient(135deg, var(--bg-gray-50), var(--primary-light));
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
}
.subscribe-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 24px auto 0;
}
.subscribe-form input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--duration-fast);
  background: var(--bg-white);
}
.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10, 107, 255, 0.1);
}

/* ============================================================
   招聘列表
   ============================================================ */
.career-list {
  display: grid;
  gap: 16px;
  max-width: 860px;
}
.career-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  gap: 20px;
  flex-wrap: wrap;
}
.career-item:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.career-item__info h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.career-item__info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.career-item__info p i { color: var(--primary); margin-right: 4px; }
.career-item__tag {
  padding: 4px 12px;
  background: var(--accent-orange);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
}

/* ============================================================
   联系页
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}
.contact-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}
.contact-item__icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.contact-item__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.contact-item__value {
  font-weight: 500;
  color: var(--text-primary);
}

/* 联系表单 */
.contact-form {
  background: var(--bg-gray-50);
  padding: 40px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
}
.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: var(--bg-white);
  outline: none;
  transition: border-color var(--duration-fast);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10, 107, 255, 0.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}
.pagination a:hover,
.pagination a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.no-data {
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ============================================================
   搜索页
   ============================================================ */
.search-header {
  text-align: center;
  padding: 40px 0 24px;
}
.search-header h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.search-header p { color: var(--text-muted); }
.search-result-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}
.search-result-item h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.search-result-item h3 a:hover { color: var(--primary); }
.search-result-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   友情链接
   ============================================================ */
.friend-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 32px 0;
  border-top: 1px solid var(--border-light);
}
.friend-links__label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.friend-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}
.friend-links a:hover { color: var(--primary); }

/* ============================================================
   Footer — 深色底部
   ============================================================ */
.footer {
  background: #0F172A;
  color: var(--text-white);
  padding: 64px 0 0;
}
.footer__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
  gap: 40px;
}
.footer__brand-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  margin: 16px 0 20px;
}
.footer__social {
  display: flex;
  gap: 12px;
}
.footer__social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: all var(--duration-fast);
}
.footer__social a:hover {
  background: var(--primary);
  color: #fff;
}

.footer__col-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--duration-fast);
}
.footer__links a:hover { color: var(--primary); }

.footer__contact-item {
  display: flex;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 12px;
  align-items: flex-start;
}
.footer__contact-item i {
  color: var(--primary);
  font-size: 0.85rem;
  margin-top: 3px;
}

.footer__qrcode {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 12px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 24px;
}
.footer__bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 10px;
}
.footer__bottom a { color: rgba(255, 255, 255, 0.4); }
.footer__bottom a:hover { color: rgba(255, 255, 255, 0.7); }

/* ============================================================
   在线客服按钮
   ============================================================ */
.online-service {
  position: fixed;
  right: 24px;
  bottom: 100px;
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-blue);
  cursor: pointer;
  z-index: 50;
  transition: all var(--duration-normal);
  animation: float 3s ease-in-out infinite;
}
.online-service:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(10, 107, 255, 0.4);
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* 返回顶部 */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 40px;
  width: 44px;
  height: 44px;
  background: var(--bg-white);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal);
}
.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ============================================================
   无数据提示
   ============================================================ */
.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.no-data i {
  display: block;
  font-size: 2.5rem;
  margin-bottom: 12px;
  color: var(--border-medium);
}

/* ============================================================
   毛玻璃特效卡片 (首页特色)
   ============================================================ */
.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(10, 107, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  transition: all var(--duration-normal) var(--ease-out);
}
.glass-card:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-blue);
  transform: translateY(-4px);
}

/* 蓝色发光边框 (hover) */
.glow-border {
  position: relative;
}
.glow-border::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan), var(--primary));
  opacity: 0;
  z-index: -1;
  transition: opacity var(--duration-normal);
}
.glow-border:hover::after { opacity: 0.15; }

/* ============================================================
   AOS 动画微调
   ============================================================ */
[data-aos] {
  transition-timing-function: var(--ease-out);
}

/* ============================================================
   图片懒加载
   ============================================================ */
img[data-src] {
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}
img[data-src].loaded {
  opacity: 1;
}

/* ============================================================
   响应式 — 平板 (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --section-gap: 72px;
  }

  .header__nav { display: none; }
  .header__cta { display: none; }
  .hamburger { display: flex; }

  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-detail { grid-template-columns: 1fr; gap: 32px; }
  .product-detail__image { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .case-logo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }

  /* 窄屏/触屏(≤1023px, 手机横屏亦可到 9xx)强制 AOS 元素静态可见：
     与 main.js 中 disable 条件(max-width:1023px)配套，防止 769–1023px 下
     AOS 预动画态(opacity:0/translateX±100px)把内容推出屏幕造成横向溢出。 */
  [data-aos] {
    transform: none !important;
    opacity: 1 !important;
    transition: none !important;
  }
}

/* ============================================================
   响应式 — 手机 (≤768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --section-gap: 56px;
    --header-height: 64px;
  }

  /* 手机端收窄首屏轮播高度，避免 banner 占满整屏显得过长 */
  .hero {
    height: 68vh;
    min-height: 440px;
    max-height: 600px;
  }
  .hero__scroll { display: none; }

  .section-title { font-size: 1.6rem; }
  .hero__title { font-size: 1.8rem; }
  .hero__subtitle { font-size: 0.95rem; }

  /* 手机端压缩轮播下方的统计数字块(4宫格)高度与字号 */
  .stats-bar { padding: 24px 0; }
  .stats { gap: 20px 14px; }
  .stat-item__number { font-size: 1.8rem; margin-bottom: 2px; }
  .stat-item__label { font-size: 0.76rem; }

  /* 首页核心产品：手机端保持2列并收紧卡片，避免过窄过长 */
  .card-grid.card-grid--home-prod {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 14px;
  }
  .card-grid--home-prod .card__body { padding: 14px 16px 18px; }
  .card-grid--home-prod .card__title { font-size: 1rem; margin-bottom: 6px; }
  .card-grid--home-prod .card__desc { -webkit-line-clamp: 2; margin-bottom: 12px; }
  .card-grid--home-prod .card__meta { padding-top: 10px; gap: 8px; font-size: 0.74rem; }

  /* 技术研发/关于我们 图文块：手机端压缩整体高度 */
  .about-grid { gap: 24px; }
  .about-image img { aspect-ratio: 16 / 10; }
  .about-text h2 { font-size: 1.5rem; margin-bottom: 10px; }
  .about-text > p {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .about-stats { margin-top: 14px; padding-top: 14px; gap: 10px 14px; }
  .about-stat h3 { font-size: 1.15rem; }
  .about-stat p { font-size: 0.7rem; }

  /* 技术研发栏目页(?tech/) 手机端：压缩头部图块与正文，不影响其它详情页 */
  .section--tech { padding: 40px 0; }
  .section--tech .about-grid { gap: 16px; }
  .section--tech .about-text h2 { font-size: 1.4rem; margin-bottom: 8px; }
  .section--tech .detail__body { margin-top: 24px !important; line-height: 1.75; }
  .section--tech .detail__body h2,
  .section--tech .detail__body h3 { margin-top: 18px; margin-bottom: 8px; }
  .section--tech .detail__body p { margin-bottom: 10px; }
  .section--tech .detail__body img { margin: 14px 0; }

  /* 首页关于我们(仅关于我们那块)：在技术研发基础上再压缩，不影响技术研发/about页面 */
  .section--home-about { padding: 40px 0; }
  .about-grid.about-grid--home-about { gap: 18px; }
  .about-grid--home-about .about-image img { aspect-ratio: 16 / 9; }
  .about-grid--home-about .section-tag { margin-bottom: 10px; }
  .about-grid--home-about .about-text h2 { font-size: 1.35rem; margin-bottom: 8px; }
  .about-grid--home-about .about-text > p {
    -webkit-line-clamp: 2;
    margin-bottom: 0;
  }
  .about-grid--home-about .about-text .btn { margin-top: 12px !important; }

  /* 首页 CTA 联系我们：手机端压缩整体高度 */
  .cta-section { padding: 44px 0; }
  .cta-section .section-tag { margin-bottom: 10px; }
  .cta-section__title { font-size: 1.45rem; margin-bottom: 8px; }
  .cta-section p { font-size: 0.95rem; margin-bottom: 20px; }
  .cta-section .btn--white { font-size: 0.95rem; padding: 12px 28px; }

  /* 首页客户案例：手机端2列并压缩卡片 */
  .card-grid.card-grid--case-home {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 14px;
  }
  .card-grid--case-home .card__image img { padding: 14px; }
  .card-grid--case-home .card__body { padding: 10px 12px 14px; }
  .card-grid--case-home .card__title { font-size: 0.95rem; margin-bottom: 4px; }
  .card-grid--case-home .card__desc { font-size: 0.8rem; -webkit-line-clamp: 2; margin-bottom: 6px; }

  /* 首页新闻：手机端1行1条 + 左缩略图右文字(压缩高度) */
  .card-grid.card-grid--news-home { grid-template-columns: 1fr; gap: 12px; }
  .card-grid--news-home .card--news {
    flex-direction: row;
    align-items: stretch;
  }
  .card-grid--news-home .card__image {
    width: 128px;
    flex: 0 0 128px;
    aspect-ratio: auto;
  }
  .card-grid--news-home .card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .card-grid--news-home .card__body { padding: 12px 14px; }
  .card-grid--news-home .card__title { font-size: 0.98rem; margin-bottom: 6px; }
  .card-grid--news-home .card__desc { -webkit-line-clamp: 2; font-size: 0.8rem; margin-bottom: 8px; }
  .card-grid--news-home .card__meta { padding-top: 8px; border-top: none; gap: 8px; font-size: 0.72rem; }

  /* 首页人才招聘：手机端压缩行距与内边距 */
  .career-list.career-list--home { gap: 10px; }
  .career-list--home .career-item { padding: 10px 14px; gap: 10px; }
  .career-list--home .career-item__info h3 { font-size: 0.98rem; margin-bottom: 3px; }
  .career-list--home .career-item__info p {
    font-size: 0.78rem;
    flex-wrap: nowrap;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .career-list--home .career-item__tag { padding: 2px 10px; font-size: 0.7rem; }

  .card-grid,
  .card-grid--4,
  .card-grid--2 { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }

  /* 产品服务列表页：手机端一行两个并压缩卡片 */
  .card-grid.card-grid--plist { grid-template-columns: repeat(2, 1fr); gap: 16px 14px; }
  .card-grid--plist .card__body { padding: 12px 14px 16px; }
  .card-grid--plist .card__title { font-size: 1rem; margin-bottom: 6px; }
  .card-grid--plist .card__desc { -webkit-line-clamp: 2; margin-bottom: 10px; font-size: 0.82rem; }
  .card-grid--plist .card__meta { padding-top: 10px; gap: 6px; font-size: 0.72rem; }
  .card-grid--plist .card__meta span:last-child { display: none; }
  .card-grid--plist .card__tag { margin-bottom: 6px; }

  /* 客户案例列表页：手机端一行两个并压缩卡片 (与首页案例块一致) */
  .card-grid.card-grid--clist { grid-template-columns: repeat(2, 1fr); gap: 16px 14px; }
  .card-grid--clist .card__image img { padding: 14px; }
  .card-grid--clist .card__body { padding: 10px 12px 14px; }
  .card-grid--clist .card__tag { font-size: 0.68rem; padding: 2px 8px; margin-bottom: 6px; }
  .card-grid--clist .card__title { font-size: 0.95rem; margin-bottom: 4px; }
  .card-grid--clist .card__desc { font-size: 0.8rem; -webkit-line-clamp: 2; margin-bottom: 6px; }

  /* 新闻资讯列表页：手机端压缩为一行一条(左图右文，与首页新闻块一致) */
  .card-grid.card-grid--nlist { grid-template-columns: 1fr; gap: 12px; }
  .card-grid--nlist .card--news { flex-direction: row; align-items: stretch; }
  .card-grid--nlist .card__image { width: 132px; flex: 0 0 132px; aspect-ratio: auto; }
  .card-grid--nlist .card__image img { width: 100%; height: 100%; object-fit: cover; }
  .card-grid--nlist .card__tag { display: none; }
  .card-grid--nlist .card__body { padding: 12px 14px; }
  .card-grid--nlist .card__title { font-size: 0.98rem; margin-bottom: 6px; }
  .card-grid--nlist .card__desc { -webkit-line-clamp: 2; font-size: 0.8rem; margin-bottom: 8px; }
  .card-grid--nlist .card__meta { padding-top: 8px; border-top: none; gap: 8px; font-size: 0.72rem; }

  .stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .case-logo-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__col-title { margin-bottom: 14px; }

  /* 手机端页脚"快速链接"：由竖排改为一行横排(超宽自动换行)，压缩纵向高度 */
  .footer__links { flex-direction: row; flex-wrap: wrap; column-gap: 20px; row-gap: 8px; }

  .footer__bottom-inner { flex-direction: column; text-align: center; }

  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .about-stat h3 { font-size: 1.3rem; }

  .hero__actions { flex-direction: column; align-items: center; }
  .subscribe-form { flex-direction: column; }

  .inner-banner { height: 220px; }
  .detail__meta { gap: 12px; }
  .prev-next { flex-direction: column; gap: 10px; }

  .btn--lg { padding: 12px 28px; font-size: 0.95rem; }
  .contact-form { padding: 28px 20px; }
}

/* ============================================================
   响应式 — 小手机 (≤480px)
   ============================================================ */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .stats { grid-template-columns: 1fr 1fr; }
}