/* ============================================
   GEO网站 - 全局样式系统
   视觉风格：明亮、专业、蓝白配色（参考大疆风格）
   ============================================ */

/* ------------------------------------------
   1. CSS 变量定义
   ------------------------------------------ */
:root {
  /* 主色 */
  --color-primary: #1a73e8;        /* 品牌蓝 */
  --color-primary-dark: #1557b0;   /* 深蓝 */
  --color-primary-light: #e8f0fe;  /* 浅蓝背景 */

  /* 背景色 */
  --color-bg: #ffffff;             /* 主背景白色 */
  --color-bg-secondary: #f8f9fa;   /* 次级灰白背景 */
  --color-bg-dark: #1a1a2e;        /* 深色区域（如Footer） */

  /* 文字颜色 */
  --color-text-primary: #1d1d1f;   /* 主文字深灰 */
  --color-text-secondary: #6e6e73; /* 次要文字 */
  --color-text-muted: #86868b;     /* 辅助文字 */

  /* 功能色 */
  --color-success: #34c759;
  --color-warning: #ff9500;
  --color-danger: #ef4444;
  --color-info: #1a73e8;

  /* 平台标签色 */
  --color-tag-android: #3ddc84;
  --color-tag-ios: #007aff;
  --color-tag-h5: #ff9500;
  --color-tag-miniprogram: #07c160;

  /* 卡片背景色 */
  --color-card: #ffffff;
  --color-border: #e5e5e5;

  /* 布局 */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;

  /* 阴影 */
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 4px 16px rgba(26, 115, 232, 0.12);
  --shadow-navbar: 0 1px 3px rgba(0, 0, 0, 0.08);

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* 字体 */
  --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* 容器 */
  --container-max-width: 1280px;
  --navbar-height: 72px;
}

/* ------------------------------------------
   2. 全局 Reset & 基础排版
   ------------------------------------------ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* 选择文字样式 */
::selection {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* ------------------------------------------
   3. 布局系统
   ------------------------------------------ */

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

/* 区域块 */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
}

/* 网格系统 - 产品卡片 */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

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

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

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

/* 弹性布局 */
.flex {
  display: flex;
}

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

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

/* 页面主内容区 - 留出导航栏高度 */
.page-main {
  padding-top: var(--navbar-height);
  min-height: calc(100vh - var(--navbar-height));
}

/* ------------------------------------------
   4. 组件样式 - 按钮
   ------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  font-weight: 500;
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

/* 主按钮 - 蓝色实心 */
.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26, 115, 232, 0.35);
}

/* 次要按钮 - 白色边框 */
.btn-secondary {
  background: #ffffff;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

/* 幽灵按钮 */
.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* 按钮尺寸 */
.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  border-radius: 6px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-lg);
  border-radius: var(--border-radius);
}

/* ------------------------------------------
   5. 组件样式 - 导航栏
   ------------------------------------------ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

/* 滚动后导航栏变不透明 */
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-navbar);
}

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

/* Logo */
.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.navbar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: #fff;
}

/* 导航链接 */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.navbar-nav a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: 500;
  position: relative;
  padding: var(--spacing-xs) 0;
  transition: color var(--transition-fast);
}

.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: 1px;
}

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

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

/* 汉堡菜单按钮 */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  cursor: pointer;
  z-index: 1001;
}

.navbar-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* 汉堡菜单展开动画 */
.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ------------------------------------------
   6. 组件样式 - 产品卡片
   ------------------------------------------ */
.product-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
  position: relative;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(26, 115, 232, 0.2);
}

.product-card:hover::before {
  opacity: 1;
}

/* 卡片图片区域 */
.product-card-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  flex-shrink: 0;
  background: #f0f0f0;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

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

/* 图片加载失败占位 */
.product-card-image.img-error {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8f0fe 0%, #f0f4ff 100%);
}

/* 产品标签角标 */
.product-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  background: linear-gradient(135deg, #ef4444, #f97316);
  color: #fff;
  z-index: 2;
}

/* 信息区域 */
.product-card-info {
  flex: 1;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

.product-card-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.product-card:hover .product-card-info h3 {
  color: var(--color-primary);
}

.product-card-info p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 分类标签 */
.product-category {
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 4px;
}

/* 产品名称 */
.product-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 产品描述 */
.product-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 功能特性标签 */
.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.feature-tag {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 4px;
}

/* 平台标签 */
.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

/* 价格 */
.product-card-price {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
}

.product-card-price .price-current {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.product-card-price .price-unit {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ------------------------------------------
   6.1 产品列表卡片兼容样式
   ------------------------------------------ */

/* ------------------------------------------
   6.1.1 CSS视觉卡片样式
   ------------------------------------------ */
.product-visual-card {
  position: relative;
  overflow: hidden;
}

.visual-card-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.95;
  transition: transform 0.5s ease;
}

.visual-card-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
  z-index: 2;
}

.visual-card-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-card-icon svg {
  width: 32px;
  height: 32px;
  color: #fff;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.visual-card-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  line-height: 1.3;
  max-width: 90%;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-all;
}

.visual-card-platforms {
  margin-top: 8px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.visual-card-platforms span {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(4px);
}

/* Hover效果 */
.product-card:hover .visual-card-bg {
  transform: scale(1.05);
}

/* 分类渐变背景 - 社交/交友（蓝色系） */
.product-visual-card[data-category="social"] .visual-card-bg {
  background: linear-gradient(135deg, #4a90d9, #357abd);
}

/* 分类渐变背景 - 电商/商城（靛蓝色系） */
.product-visual-card[data-category="ecommerce"] .visual-card-bg {
  background: linear-gradient(135deg, #5b6abf, #4a5aad);
}

/* 分类渐变背景 - AI/智能（青蓝色系） */
.product-visual-card[data-category="ai"] .visual-card-bg {
  background: linear-gradient(135deg, #4facfe, #2f8ef5);
}

/* 分类渐变背景 - 直播/短视频（深蓝色系） */
.product-visual-card[data-category="livestream"] .visual-card-bg {
  background: linear-gradient(135deg, #667eea, #5a6fd6);
}

/* 分类渐变背景 - 同城/本地生活（蓝绿色系） */
.product-visual-card[data-category="local-life"] .visual-card-bg {
  background: linear-gradient(135deg, #38b2ac, #2d9a8e);
}

/* 分类渐变背景 - 外卖/餐饮（暖蓝色系） */
.product-visual-card[data-category="food-delivery"] .visual-card-bg {
  background: linear-gradient(135deg, #5a8fc4, #4a7db3);
}

/* 分类渐变背景 - 游戏/娱乐（蓝紫色系） */
.product-visual-card[data-category="gaming"] .visual-card-bg {
  background: linear-gradient(135deg, #6c63ff, #5a52e0);
}

/* 分类渐变背景 - 金融/支付（深靛蓝色系） */
.product-visual-card[data-category="finance"] .visual-card-bg {
  background: linear-gradient(135deg, #3d5a80, #2d4a70);
}

/* 分类渐变背景 - 教育/知识（蓝色系） */
.product-visual-card[data-category="education"] .visual-card-bg {
  background: linear-gradient(135deg, #4a90d9, #5b9bd5);
}

/* 分类渐变背景 - 企业/办公（石蓝色系） */
.product-visual-card[data-category="enterprise"] .visual-card-bg {
  background: linear-gradient(135deg, #4568a2, #3a5992);
}

/* 分类渐变背景 - 医疗/健康（蓝绿色系） */
.product-visual-card[data-category="medical"] .visual-card-bg {
  background: linear-gradient(135deg, #2196a4, #1e8a97);
}

/* 分类渐变背景 - 工具/系统（深蓝色系） */
.product-visual-card[data-category="tools"] .visual-card-bg {
  background: linear-gradient(135deg, #37474f, #455a64);
}

/* ------------------------------------------
   6.1.2 真实图片卡片样式（已合并到 .product-card-image）
   ------------------------------------------ */

/* 产品信息兼容（旧class名） */
.product-info {
  flex: 1;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

/* ------------------------------------------
   6.2 产品卡片底部按钮
   ------------------------------------------ */
.btn-detail {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 50px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #ffffff;
  background: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn-detail:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
  color: #ffffff;
  background: var(--color-primary-dark);
}

/* 产品卡片底部布局 */
.product-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: auto;
  padding-top: var(--spacing-md);
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

/* ------------------------------------------
   6.3 骨架屏样式
   ------------------------------------------ */
.skeleton-card {
  background: var(--color-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.skeleton-pulse {
  position: relative;
  overflow: hidden;
  background: #f0f0f0;
  border-radius: var(--border-radius-sm);
}

.skeleton-pulse::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  animation: skeletonPulse 1.5s ease-in-out infinite;
}

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

.skeleton-image {
  width: 100%;
  height: 0;
  padding-top: 56.25%;
}

.skeleton-title {
  height: 18px;
  margin: 12px 16px 8px;
  width: 70%;
}

.skeleton-text {
  height: 14px;
  margin: 6px 16px;
  width: 90%;
}

.skeleton-text.short {
  width: 50%;
}

.skeleton-price {
  height: 20px;
  width: 80px;
  margin: 12px 16px 16px;
}

.skeleton-btn {
  height: 32px;
  width: 90px;
  border-radius: 999px;
  margin: 0 16px 16px auto;
}

/* ------------------------------------------
   7. 组件样式 - 分类卡片
   ------------------------------------------ */
.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.category-card .category-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-sm);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base);
}

.category-card:hover .category-icon {
  background: var(--color-primary);
  transform: scale(1.1);
}

.category-card .category-name {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-primary);
}

.category-card .category-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* ------------------------------------------
   8. 组件样式 - 面包屑导航
   ------------------------------------------ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
}

.breadcrumb-item {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.breadcrumb-item.active {
  color: var(--color-text-primary);
}

.breadcrumb-separator {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

/* ------------------------------------------
   9. 组件样式 - 搜索框
   ------------------------------------------ */
.search-box {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.search-box input {
  width: 100%;
  padding: 12px 48px 12px 20px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.search-box input::placeholder {
  color: var(--color-text-muted);
}

.search-box input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
  background: #ffffff;
}

.search-box .search-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.search-box .search-icon:hover {
  color: var(--color-primary);
}

/* ------------------------------------------
   10. 组件样式 - 平台标签
   ------------------------------------------ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.tag-android {
  background: rgba(61, 220, 132, 0.1);
  color: var(--color-tag-android);
  border: 1px solid rgba(61, 220, 132, 0.2);
}

.tag-ios {
  background: rgba(0, 122, 255, 0.1);
  color: var(--color-tag-ios);
  border: 1px solid rgba(0, 122, 255, 0.2);
}

.tag-h5 {
  background: rgba(255, 149, 0, 0.1);
  color: var(--color-tag-h5);
  border: 1px solid rgba(255, 149, 0, 0.2);
}

.tag-miniprogram {
  background: rgba(7, 193, 96, 0.1);
  color: var(--color-tag-miniprogram);
  border: 1px solid rgba(7, 193, 96, 0.2);
}

/* ------------------------------------------
   11. 组件样式 - Footer
   ------------------------------------------ */
.footer {
  background: var(--color-bg-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

/* 公司信息列 */
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: #ffffff;
}

.footer-brand p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
  max-width: 320px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  color: rgba(255, 255, 255, 0.6);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* 链接列 */
.footer-links h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  color: #ffffff;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

/* 联系方式列 */
.footer-contact li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.footer-contact li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.4);
}

/* 底部版权 */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--font-size-sm);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* ------------------------------------------
   12. 动画
   ------------------------------------------ */

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* 渐变流动动画 */
@keyframes gradientFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 脉冲发光动画 */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(26, 115, 232, 0.15);
  }
  50% {
    box-shadow: 0 0 25px rgba(26, 115, 232, 0.3);
  }
}

/* 加载旋转动画 */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* 动画工具类 */
.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

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

.animate-fade-in-left {
  animation: fadeInLeft 0.6s ease forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s ease forwards;
}

/* 延迟类 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* 初始不可见（配合动画使用） */
.animate-fade-in,
.animate-fade-in-up,
.animate-fade-in-left,
.animate-fade-in-right {
  opacity: 0;
}

/* 渐变流动背景 */
.gradient-flow {
  background: linear-gradient(
    270deg,
    var(--color-primary),
    var(--color-primary-dark),
    var(--color-primary)
  );
  background-size: 200% 200%;
  animation: gradientFlow 4s ease infinite;
}

/* ------------------------------------------
   13. 页面加载遮罩
   ------------------------------------------ */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.page-loader .loader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-primary-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ------------------------------------------
   14. 工具类
   ------------------------------------------ */
.text-gradient {
  color: var(--color-primary);
}

/* ------------------------------------------
   15. Hero Banner 区域
   ------------------------------------------ */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--navbar-height);
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
}

/* 渐变流动背景层 */
.hero-gradient-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(26, 115, 232, 0.04) 0%,
    rgba(26, 115, 232, 0.08) 40%,
    rgba(21, 87, 176, 0.04) 60%,
    rgba(26, 115, 232, 0.02) 100%
  );
  background-size: 400% 400%;
  animation: gradientFlow 8s ease infinite;
  z-index: 1;
}

/* 粒子动画层 */
.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(1px);
}

.particle-1 {
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  top: 15%;
  left: 10%;
  animation: particleFloat1 12s ease-in-out infinite;
}

.particle-2 {
  width: 4px;
  height: 4px;
  background: var(--color-primary-dark);
  top: 25%;
  right: 15%;
  animation: particleFloat2 15s ease-in-out infinite;
}

.particle-3 {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  bottom: 30%;
  left: 20%;
  animation: particleFloat3 18s ease-in-out infinite;
}

.particle-4 {
  width: 5px;
  height: 5px;
  background: var(--color-primary-dark);
  top: 40%;
  right: 25%;
  animation: particleFloat1 14s ease-in-out infinite reverse;
}

.particle-5 {
  width: 7px;
  height: 7px;
  background: var(--color-primary);
  bottom: 20%;
  right: 10%;
  animation: particleFloat2 16s ease-in-out infinite reverse;
}

.particle-6 {
  width: 3px;
  height: 3px;
  background: var(--color-primary-dark);
  top: 60%;
  left: 35%;
  animation: particleFloat3 20s ease-in-out infinite reverse;
}

@keyframes particleFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.1; }
  25% { transform: translate(30px, -40px) scale(1.3); opacity: 0.2; }
  50% { transform: translate(-20px, -80px) scale(0.8); opacity: 0.08; }
  75% { transform: translate(40px, -30px) scale(1.1); opacity: 0.15; }
}

@keyframes particleFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.1; }
  25% { transform: translate(-40px, -30px) scale(1.2); opacity: 0.18; }
  50% { transform: translate(30px, -60px) scale(0.9); opacity: 0.12; }
  75% { transform: translate(-20px, -50px) scale(1.1); opacity: 0.08; }
}

@keyframes particleFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.1; }
  33% { transform: translate(25px, -70px) scale(1.4); opacity: 0.2; }
  66% { transform: translate(-35px, -40px) scale(0.7); opacity: 0.08; }
}

/* Hero内容 */
.hero-section .container {
  position: relative;
  z-index: 3;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

/* 向下滚动提示 */
.hero-scroll-hint {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  animation: scrollBounce 2s ease-in-out infinite;
  transition: color var(--transition-fast);
}

.hero-scroll-hint:hover {
  color: var(--color-primary);
}

.hero-scroll-hint svg {
  animation: scrollArrow 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes scrollArrow {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(4px); }
}

/* ------------------------------------------
   16. 数据统计区
   ------------------------------------------ */
.stats-section {
  padding: var(--spacing-2xl) 0;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-item {
  padding: var(--spacing-lg) var(--spacing-md);
}

.stat-number {
  display: inline;
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
}

.stat-suffix {
  display: inline;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-left: 2px;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* ------------------------------------------
   17. 分类卡片 SVG 图标适配
   ------------------------------------------ */
.category-card .category-icon svg {
  transition: color var(--transition-base);
  color: var(--color-primary);
}

.category-card:hover .category-icon svg {
  color: #ffffff;
}

/* ------------------------------------------
   18. 热门产品区 footer
   ------------------------------------------ */
.section-footer {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* ------------------------------------------
   19. 公司优势区
   ------------------------------------------ */
.advantage-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  padding: var(--spacing-2xl) var(--spacing-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  text-align: center;
  box-shadow: var(--shadow-card);
}

.advantage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.advantage-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-sm);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  transition: all var(--transition-base);
}

.advantage-icon svg {
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  background: var(--color-primary);
  transform: scale(1.1);
}

.advantage-card:hover .advantage-icon svg {
  color: #ffffff;
}

.advantage-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.advantage-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ------------------------------------------
   20. 合作流程区
   ------------------------------------------ */
.process-timeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: nowrap;
}

.process-step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-card);
}

.process-step:hover {
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: #ffffff;
  margin: 0 auto var(--spacing-md);
}

.step-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.step-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.process-connector {
  color: var(--color-text-muted);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ------------------------------------------
   21. CTA区域
   ------------------------------------------ */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background: var(--color-primary-light);
  border-top: 1px solid rgba(26, 115, 232, 0.1);
  border-bottom: 1px solid rgba(26, 115, 232, 0.1);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.cta-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-secondary);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mt-3 { margin-top: var(--spacing-2xl); }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-xl); }
.mb-3 { margin-bottom: var(--spacing-2xl); }

.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ------------------------------------------
   15. 页面Banner组件
   ------------------------------------------ */
.page-banner {
  position: relative;
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  background: linear-gradient(135deg, var(--color-primary-light), rgba(232, 240, 254, 0.5));
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(21, 87, 176, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

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

.page-banner h1 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.page-banner .breadcrumb {
  padding: var(--spacing-md) 0 0;
}

/* ------------------------------------------
   16. 公司介绍区
   ------------------------------------------ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-intro-text h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.about-intro-text h3 span {
  color: var(--color-primary);
}

.about-intro-text p {
  font-size: var(--font-size-lg);
  line-height: 1.9;
  margin-bottom: var(--spacing-lg);
}

.about-intro-image {
  position: relative;
  width: 100%;
  padding-top: 75%;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-light), rgba(232, 240, 254, 0.3));
  border: 1px solid var(--color-border);
}

.about-intro-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border: 3px solid rgba(26, 115, 232, 0.2);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-intro-image::after {
  content: '赛北网络科技';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: rgba(26, 115, 232, 0.15);
  white-space: nowrap;
}

/* ------------------------------------------
   17. 核心数据区
   ------------------------------------------ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.2;
}

.stat-label {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ------------------------------------------
   18. 优势卡片网格
   ------------------------------------------ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.advantage-card {
  padding: var(--spacing-xl);
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.advantage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--border-radius-sm);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  background: var(--color-primary);
  transform: scale(1.1);
}

.advantage-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.advantage-card:hover .advantage-icon svg {
  color: #fff;
}

.advantage-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.advantage-card p {
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* ------------------------------------------
   19. 技术栈展示
   ------------------------------------------ */
.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.tech-group {
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
}

.tech-group:hover {
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.tech-group-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.tech-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.tech-item:hover {
  border-color: rgba(26, 115, 232, 0.3);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.tech-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ------------------------------------------
   20. 服务流程
   ------------------------------------------ */
.service-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.service-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 0 0 auto;
  width: 140px;
}

.service-step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.service-step-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.service-step-arrow {
  display: flex;
  align-items: center;
  padding-top: 14px;
  margin: 0 var(--spacing-sm);
  color: var(--color-text-muted);
}

.service-step-arrow svg {
  width: 24px;
  height: 24px;
}

/* ------------------------------------------
   21. 联系方式卡片
   ------------------------------------------ */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.contact-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.contact-card:hover .contact-card-icon {
  background: var(--color-primary);
  transform: scale(1.1);
}

.contact-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.contact-card:hover .contact-card-icon svg {
  color: #fff;
}

.contact-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.contact-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.contact-card .qr-placeholder {
  width: 200px;
  height: 200px;
  margin: var(--spacing-md) auto 0;
  background: var(--color-bg-secondary);
  border: 1px dashed var(--color-border);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ------------------------------------------
   22. 在线留言表单
   ------------------------------------------ */
.contact-form-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: var(--spacing-2xl);
  max-width: 800px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.contact-form-card h3 {
  font-size: var(--font-size-2xl);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
}

.form-group label .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
  background: #ffffff;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%2386868b'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select option {
  background: #ffffff;
  color: var(--color-text-primary);
}

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

.form-submit {
  grid-column: 1 / -1;
  text-align: center;
  margin-top: var(--spacing-md);
}

/* ------------------------------------------
   23. 地图/地址占位
   ------------------------------------------ */
.map-placeholder {
  width: 100%;
  height: 300px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--spacing-md);
}

.map-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
}

.map-placeholder p {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}

/* ------------------------------------------
   24. 工作时间
   ------------------------------------------ */
.working-hours {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  max-width: 600px;
  margin: 0 auto;
}

.working-hour-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
}

.working-hour-card:hover {
  border-color: rgba(26, 115, 232, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.working-hour-card svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.working-hour-card h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-sm);
}

.working-hour-card p {
  font-size: var(--font-size-sm);
}

/* ------------------------------------------
   25. 小程序二维码弹框
   ------------------------------------------ */
.qrcode-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.qrcode-modal.active {
  display: flex;
}

.qrcode-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.qrcode-modal-content {
  position: relative;
  background: #ffffff;
  border-radius: 16px;
  padding: 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.qrcode-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 28px;
  cursor: pointer;
  transition: color 0.3s;
  line-height: 1;
}

.qrcode-modal-close:hover {
  color: var(--color-text-primary);
}

.qrcode-modal-body h3 {
  color: var(--color-text-primary);
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.qrcode-modal-body p {
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.qrcode-image {
  width: 200px;
  height: 200px;
  margin: 0 auto 20px;
  background: #fff;
  border-radius: 12px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.qrcode-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qrcode-tip {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}