/* ========================================
   瑞银信移动POS官网 - 共享样式文件
   品牌：瑞银信 RYX
   配色：#1D4ED8(瑞银信蓝) / #1E3A8A(深蓝) / #10B981(绿色) / #F59E0B(金色)
   风格：稳重可信，清爽浅蓝主题
   ======================================== */

/* ============ CSS变量 ============ */
:root {
  --primary: #1D4ED8;
  --primary-dark: #1E3A8A;
  --primary-light: #EFF6FF;
  --green: #10B981;
  --green-light: #ECFDF5;
  --gold: #F59E0B;
  --bg-white: #FFFFFF;
  --bg-page: #F9FAFB;
  --bg-light: #F0F9FF;
  --text-dark: #111827;
  --text-body: #374151;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --border: #E5E7EB;
  --card-shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --radius: 10px;
  --radius-sm: 6px;
  --transition: all 0.3s ease;
}

/* ============ 基础样式 ============ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 48px;
}

/* ============ 导航栏 ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 68px;
  background: rgba(255, 255, 255, 0.98);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(29, 78, 216, 0.15);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.navbar-brand .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 16px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar-nav a {
  color: var(--text-body);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

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

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

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

.navbar-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white !important;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 600;
  transition: var(--transition);
}

.navbar-cta::after {
  display: none !important;
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
  color: white !important;
}

/* 汉堡菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* 手机端导航 */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .navbar-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    gap: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar-nav li {
    width: 100%;
  }

  .navbar-nav a {
    display: block;
    padding: 15px 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
  }

  .navbar-cta {
    display: block;
    text-align: center;
    margin-top: 15px;
  }
}

/* ============ 页脚 ============ */
.footer {
  background: var(--bg-light);
  padding: 48px 0 24px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 14px;
}

.footer-brand span {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.footer-slogan {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.footer-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
}

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

.footer-info {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
}

.footer-info a {
  color: var(--text-muted);
}

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

/* ============ 公共组件 ============ */

/* 绿色左边框卡片 */
.green-border-card {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  border-left: 4px solid var(--green);
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.green-border-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

/* 浅蓝背景区块 */
.light-blue-bg {
  background: var(--bg-light);
}

/* 蓝色渐变按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 14px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.35);
  color: white;
}

/* 白边框按钮 */
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--primary);
  padding: 14px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

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

/* 特性标签 */
.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
}

.feature-tag.green {
  background: var(--green-light);
  color: var(--green);
}

/* 页面标题区 */
.page-hero {
  background: var(--bg-light);
  padding: 120px 0 60px;
  text-align: center;
}

.page-hero h1 {
  font-size: 42px;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 18px;
  color: var(--text-muted);
}

/* ============ 首页Hero区 ============ */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg-light) 0%, white 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-top: 68px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(30, 58, 138, 0.05));
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.06), transparent);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-light);
  color: var(--green);
  padding: 10px 20px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 32px;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-title .highlight {
  color: var(--green);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-tags {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-tags .tag {
  background: white;
  padding: 10px 20px;
  border-radius: 25px;
  font-size: 15px;
  color: var(--text-body);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
}

/* ============ 首页不跳码说明区 ============ */
.stability-section {
  padding: 100px 0;
}

.stability-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.stability-card {
  text-align: center;
  padding: 32px 24px;
}

.stability-card .icon {
  width: 64px;
  height: 64px;
  background: var(--green-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}

.stability-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.stability-card p {
  color: var(--text-muted);
  font-size: 15px;
}

.stability-emphasis {
  text-align: center;
  margin-top: 48px;
  font-size: 20px;
  color: var(--text-body);
  font-weight: 500;
}

.stability-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 16px;
}

.stability-link:hover {
  gap: 12px;
}

@media (max-width: 768px) {
  .stability-cards {
    grid-template-columns: 1fr;
  }
}

/* ============ 移动便携优势区 ============ */
.portable-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.portable-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.portable-card {
  text-align: center;
  padding: 32px 24px;
}

.portable-card .icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}

.portable-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.portable-card p {
  color: var(--text-muted);
  font-size: 15px;
}

.portable-compare {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.compare-item {
  background: white;
  padding: 24px 32px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--card-shadow);
}

.compare-item.bad {
  color: var(--text-muted);
}

.compare-item.good {
  color: var(--green);
  border: 2px solid var(--green);
}

@media (max-width: 768px) {
  .portable-cards {
    grid-template-columns: 1fr;
  }
}

/* ============ 产品展示区 ============ */
.products-section {
  padding: 100px 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.product-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
  border-left: 4px solid var(--green);
  transition: var(--transition);
}

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

.product-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

.product-name {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-model {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.product-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-light);
  color: var(--green);
  padding: 6px 14px;
  border-radius: 15px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
}

.product-features {
  list-style: none;
  margin-bottom: 20px;
}

.product-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 14px;
}

.product-features li:last-child {
  border-bottom: none;
}

.product-btn {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.product-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.products-highlight {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-weight: 600;
}

@media (max-width: 992px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
}

/* ============ 为什么选瑞银信 ============ */
.why-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.why-item {
  text-align: center;
  padding: 32px 20px;
}

.why-item .number {
  font-family: 'Barlow', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.3;
  margin-bottom: 8px;
}

.why-item .icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.why-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.why-item p {
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 992px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
}

/* ============ 底部CTA申请区 ============ */
.cta-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.cta-box {
  background: white;
  border-radius: 16px;
  padding: 60px;
  text-align: center;
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 32px;
  margin-bottom: 16px;
}

.cta-advantages {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.cta-advantages span {
  color: var(--green);
  font-weight: 500;
}

.form-group {
  margin-bottom: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.35);
}

.cta-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-muted);
}

@media (max-width: 576px) {
  .cta-box {
    padding: 32px 20px;
  }
}

/* ============ 移动POS页专属 ============ */

/* 对比表格 */
.compare-section {
  padding: 100px 0;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 48px;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.compare-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-dark);
}

.compare-table th:last-child,
.compare-table td:last-child {
  color: var(--green);
  font-weight: 600;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .check {
  color: var(--green);
}

.compare-table .cross {
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .compare-table {
    font-size: 14px;
  }
  
  .compare-table th,
  .compare-table td {
    padding: 12px 10px;
  }
}

/* 产品详情 */
.product-detail {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}

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

.product-detail:nth-child(even) {
  background: var(--bg-light);
}

.product-detail-wrapper {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: center;
}

.product-detail-icon {
  text-align: center;
}

.product-detail-icon .icon {
  font-size: 100px;
}

.product-detail-icon .tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 15px;
  font-size: 13px;
  font-weight: 500;
  margin-top: 16px;
}

.product-detail-info h3 {
  font-size: 28px;
  margin-bottom: 8px;
}

.product-detail-info .subtitle {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.product-detail-info .定位 {
  color: var(--green);
  font-weight: 500;
  margin-bottom: 20px;
}

.product-params {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.param-tag {
  background: var(--bg-light);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-body);
}

.product-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: 25px;
  font-weight: 600;
  transition: var(--transition);
}

.product-detail-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.35);
  color: white;
}

@media (max-width: 768px) {
  .product-detail-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* 4大核心功能 */
.features-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-item {
  background: white;
  padding: 32px 24px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

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

.feature-item .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.feature-item p {
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* 参数对比表 */
.params-section {
  padding: 100px 0;
}

.params-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 48px;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.params-table th,
.params-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.params-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.params-table th:first-child,
.params-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.params-table tr:last-child td {
  border-bottom: none;
}

.params-table .check {
  color: var(--green);
}

/* ============ 稳定保障页专属 ============ */

/* 技术保障 */
.tech-guarantee {
  padding: 100px 0;
}

.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.guarantee-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
  border-left: 4px solid var(--green);
}

.guarantee-card .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

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

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

.guarantee-emphasis {
  text-align: center;
  margin-top: 48px;
  padding: 32px;
  background: var(--green-light);
  border-radius: var(--radius);
  font-size: 18px;
  color: var(--green);
  font-weight: 500;
}

@media (max-width: 768px) {
  .guarantee-grid {
    grid-template-columns: 1fr;
  }
}

/* 价值说明 */
.value-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

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

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

.value-card .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.value-card p {
  color: var(--text-muted);
  font-size: 15px;
}

@media (max-width: 768px) {
  .value-grid {
    grid-template-columns: 1fr;
  }
}

/* FAQ手风琴 */
.faq-section {
  padding: 100px 0;
}

.faq-list {
  max-width: 800px;
  margin: 48px auto 0;
}

.faq-item {
  background: white;
  border-radius: var(--radius);
  margin-bottom: 16px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
}

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

.faq-question .arrow {
  transition: var(--transition);
  font-size: 20px;
  color: var(--text-muted);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============ 关于页专属 ============ */

/* 品牌介绍 */
.brand-intro {
  padding: 80px 0;
}

.brand-intro-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-body);
}

/* 核心优势 */
.core-advantages {
  background: var(--bg-light);
  padding: 100px 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.advantage-item {
  background: white;
  padding: 32px 24px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

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

.advantage-item .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.advantage-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.advantage-item p {
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 992px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
}

/* 办理说明 */
.process-section {
  padding: 100px 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.process-item {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--card-shadow);
  border-left: 4px solid var(--green);
}

.process-item .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.process-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.process-item p {
  color: var(--text-muted);
  font-size: 15px;
}

@media (max-width: 768px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

/* 申请表单 */
.apply-section {
  background: var(--bg-light);
  padding: 100px 0;
}

.apply-box {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  border-radius: 16px;
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.apply-box h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 576px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .apply-box {
    padding: 32px 20px;
  }
}

/* 资质展示 */
.cert-section {
  padding: 100px 0;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

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

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

.cert-item .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.cert-item h3 {
  font-size: 18px;
}

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

/* ============ 滚动动画 ============ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 延迟动画 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ============ 响应式基础 ============ */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 30px;
  }
  
  .page-hero {
    padding: 100px 0 40px;
  }
  
  .page-hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .container {
    max-width: 540px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 26px;
  }
  
  .section-subtitle {
    font-size: 16px;
    margin-bottom: 32px;
  }
}