/* ================================================
   银联商务手刷MPOS - 设计规范
   ChinaUMS 手刷MPOS 产品官网
   整体风格：轻量便携风，银联红+便携蓝点缀
   ================================================ */

/* ================================================
   1. 基础样式 reset+字体
   ================================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800;900&family=Barlow:wght@300;400;500;600;700;800&display=swap');

:root {
  /* 银联红系 */
  --red: #C41230;
  --red-dark: #991B1B;
  --red-deep: #7F1D1D;
  
  /* 便携蓝系（全新点缀色，区别于前40品牌） */
  --blue: #38BDF8;
  --blue-dark: #0284C7;
  --blue-light: #F0F9FF;
  
  /* 权威绿系（区别于中付支付信誉金） */
  --green: #065F46;
  --green-light: #ECFDF5;
  
  /* 背景色 */
  --bg-white: #FFFFFF;
  --bg-page: #FEF2F2;
  --bg-light: #FEE2E2;
  
  /* 文字色 */
  --text-dark: #991B1B;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  
  /* 边框与阴影 */
  --border: #E5E7EB;
  --card-shadow: 0 2px 8px rgba(196,18,48,0.08);
  --shadow-md: 0 8px 24px rgba(196,18,48,0.12);
  --shadow-lg: 0 12px 40px rgba(196,18,48,0.15);
  
  /* 圆角 */
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  
  /* 过渡 */
  --transition: all 0.3s ease;
  
  /* 字体 */
  --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Barlow', 'Helvetica Neue', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ================================================
   2. 导航栏（白色，滚动银联红阴影）
   ================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  background: rgba(255, 255, 255, 0.98);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(196, 18, 48, 0.12);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.navbar-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--red);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  font-weight: 800;
}

.navbar-logo-text {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 1px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  padding: 8px 16px;
  color: var(--text-body);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--red);
  background: var(--bg-light);
}

.navbar-cta {
  margin-left: 16px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: white;
  font-weight: 600;
  font-size: 15px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(196, 18, 48, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196, 18, 48, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  color: white;
  font-weight: 600;
  font-size: 15px;
  border: 2px solid white;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: white;
  color: var(--red);
}

.btn-blue {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.btn-blue:hover {
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

/* 汉堡菜单 */
.navbar-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}

.navbar-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar-mobile {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: white;
  padding: 16px;
  box-shadow: var(--shadow-md);
}

.navbar-mobile.active {
  display: block;
}

.navbar-mobile a {
  display: block;
  padding: 14px 20px;
  color: var(--text-body);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.navbar-mobile a:hover,
.navbar-mobile a.active {
  background: var(--bg-light);
  color: var(--red);
}

/* ================================================
   3. 页脚（银联红渐变）
   ================================================ */
.footer {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: white;
  padding: 60px 24px 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo-icon {
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--red);
  font-weight: 800;
}

.footer-logo-text {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: white;
}

.footer-slogan {
  font-size: 15px;
  opacity: 0.9;
  line-height: 1.8;
}

.footer-links h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-bottom {
  margin-top: 60px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 2;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

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

/* ================================================
   4. 公共组件
   ================================================ */

/* 银联红卡片 */
.card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-red-top {
  border-top: 4px solid var(--red);
}

.card-blue-bottom {
  border-bottom: 2px solid var(--blue);
}

.card-green-left {
  border-left: 4px solid var(--green);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
}

.tag-blue {
  background: var(--blue-light);
  color: var(--blue-dark);
}

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

.tag-red {
  background: var(--bg-light);
  color: var(--red);
}

/* 胶囊徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(56, 189, 248, 0.15);
  color: white;
  font-size: 14px;
  font-weight: 500;
  border-radius: 30px;
  backdrop-filter: blur(10px);
}

/* 区块标题 */
.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-title p {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* ================================================
   5. 首页专属
   ================================================ */

/* Hero区 */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  padding: 140px 24px 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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='0.03'%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");
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-badge {
  margin-bottom: 30px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  color: white;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  line-height: 1.7;
}

/* 手掌设备缩小动画区 */
.hero-animation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin: 50px 0;
  flex-wrap: wrap;
}

.animation-left,
.animation-right {
  flex: 1;
  min-width: 280px;
  max-width: 350px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(10px);
  text-align: center;
}

.animation-center {
  flex: 0 0 auto;
  text-align: center;
}

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

.animation-title {
  font-size: 20px;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.animation-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* 设备缩小动画 */
.device-shrink {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
}

.device-shrink span {
  position: absolute;
  border: 2px dashed rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  animation: shrinkPulse 2s ease-in-out infinite;
}

.device-shrink span:nth-child(1) {
  width: 120px;
  height: 120px;
  top: 0;
  left: 0;
  animation-delay: 0s;
}

.device-shrink span:nth-child(2) {
  width: 90px;
  height: 90px;
  top: 15px;
  left: 15px;
  animation-delay: 0.3s;
}

.device-shrink span:nth-child(3) {
  width: 60px;
  height: 60px;
  top: 30px;
  left: 30px;
  animation-delay: 0.6s;
}

.device-shrink .device {
  position: absolute;
  width: 40px;
  height: 40px;
  background: var(--blue);
  border-radius: 8px;
  top: 40px;
  left: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  animation: deviceShrink 2s ease-in-out infinite;
}

@keyframes shrinkPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.4;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.7;
  }
}

@keyframes deviceShrink {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.6);
  }
}

/* 银联盾牌动画 */
.shield-animation {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
}

.shield {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  background: var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  animation: shieldPulse 2s ease-in-out infinite;
  box-shadow: 0 0 30px rgba(6, 95, 70, 0.5);
}

@keyframes shieldPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 30px rgba(6, 95, 70, 0.5);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 50px rgba(6, 95, 70, 0.7);
  }
}

.shield-text {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 700;
  color: var(--green);
  background: white;
  padding: 4px 12px;
  border-radius: 20px;
  animation: textGlow 2s ease-in-out infinite;
}

@keyframes textGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(6, 95, 70, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(6, 95, 70, 0.6);
  }
}

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

.hero-bottom-text {
  margin-top: 40px;
  padding: 20px 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
}

/* 小巧便携说明区 */
.section-portable {
  padding: 100px 24px;
  background: var(--bg-page);
}

.portable-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.portable-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  border-top: 4px solid var(--blue);
  transition: var(--transition);
}

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

.portable-card-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.portable-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

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

.portable-emphasis {
  max-width: 800px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--blue-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--blue-dark);
  font-weight: 500;
}

/* 银联直属说明区 */
.section-secure {
  padding: 100px 24px;
  background: white;
}

.secure-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.secure-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  border-left: 4px solid var(--green);
  transition: var(--transition);
}

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

.secure-card-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.secure-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

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

.secure-emphasis {
  max-width: 800px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--green-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--green);
  font-weight: 500;
}

/* 产品展示区 */
.section-products {
  padding: 100px 24px;
  background: var(--bg-page);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border-top: 4px solid var(--red);
  border-bottom: 2px solid var(--blue);
  transition: var(--transition);
}

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

.product-header {
  padding: 30px;
  text-align: center;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: white;
}

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

.product-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-model {
  font-size: 14px;
  opacity: 0.8;
}

.product-tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
}

.product-body {
  padding: 30px;
}

.product-features {
  list-style: none;
  margin-bottom: 24px;
}

.product-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-body);
}

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

.product-features .icon {
  font-size: 18px;
}

.products-emphasis {
  max-width: 900px;
  margin: 50px auto 0;
  padding: 24px;
  background: white;
  border-radius: var(--radius);
  text-align: center;
  font-size: 16px;
  color: var(--text-dark);
  font-weight: 600;
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

/* 为什么选银联商务 */
.section-why {
  padding: 100px 24px;
  background: white;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 2fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.why-card {
  background: var(--bg-page);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  gap: 20px;
  transition: var(--transition);
}

.why-card:hover {
  background: var(--bg-light);
  transform: translateX(8px);
}

.why-number {
  font-family: var(--font-en);
  font-size: 32px;
  font-weight: 800;
  color: var(--red);
  line-height: 1;
}

.why-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

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

/* 三方对比区 */
.section-compare {
  padding: 100px 24px;
  background: var(--bg-page);
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}

.compare-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: var(--transition);
}

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

.compare-card.best {
  border: 2px solid var(--green);
  position: relative;
}

.compare-card.best::before {
  content: '最高等级';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--green);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.compare-card.warning {
  border: 2px solid #F59E0B;
}

.compare-card.danger {
  border: 2px solid #EF4444;
}

.compare-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
}

.compare-card ul {
  list-style: none;
}

.compare-card li {
  padding: 12px 0;
  font-size: 14px;
  color: var(--text-body);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

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

.compare-emphasis {
  max-width: 900px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--green-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--green);
  font-weight: 500;
}

/* 底部CTA区 */
.section-cta {
  padding: 100px 24px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  text-align: center;
}

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

.cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.cta-features span {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  font-weight: 500;
}

.cta-form {
  background: var(--red-deep);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.cta-form input {
  width: 100%;
  padding: 16px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-body);
}

.cta-form input::placeholder {
  color: var(--text-muted);
}

.cta-form button {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.cta-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.cta-tips {
  margin-top: 20px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* ================================================
   6. 手刷MPOS页专属
   ================================================ */

.page-hero {
  padding: 140px 24px 80px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  text-align: center;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.85);
}

/* 功能列表 */
.section-features {
  padding: 100px 24px;
  background: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-page);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-light);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

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

/* 同品牌四款产品线对比 */
.section-lineup {
  padding: 100px 24px;
  background: var(--bg-page);
}

.lineup-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.lineup-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
}

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

.lineup-card.mpos {
  border-top: 4px solid var(--blue);
}

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

.lineup-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.lineup-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.lineup-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.lineup-emphasis {
  max-width: 1000px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--blue-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--blue-dark);
  font-weight: 500;
}

/* 产品详情 */
.section-details {
  padding: 100px 24px;
  background: white;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.detail-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border);
  transition: var(--transition);
}

.detail-card:hover {
  border-color: var(--red);
  box-shadow: var(--shadow-md);
}

.detail-image {
  height: 200px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
}

.detail-body {
  padding: 30px;
}

.detail-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.detail-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.detail-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.detail-specs {
  list-style: none;
  margin-bottom: 24px;
}

.detail-specs li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-body);
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

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

/* 产品对比表 */
.section-table {
  padding: 100px 24px;
  background: var(--bg-page);
}

.table-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  overflow-x: auto;
}

.table-wrapper table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

.table-wrapper th {
  background: var(--red);
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.table-wrapper td {
  font-size: 14px;
  color: var(--text-body);
}

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

.table-wrapper tr:hover td {
  background: var(--bg-page);
}

/* ================================================
   7. 小巧便携页专属
   ================================================ */

.page-hero.blue {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
}

/* 科普区 */
.section-intro {
  padding: 100px 24px;
  background: white;
}

.intro-content {
  max-width: 800px;
  margin: 0 auto;
}

.intro-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 30px;
  text-align: center;
}

.intro-box {
  background: var(--blue-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 30px;
}

.intro-box h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 20px;
}

.intro-features {
  list-style: none;
}

.intro-features li {
  padding: 12px 0;
  font-size: 16px;
  color: var(--text-body);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.intro-features li::before {
  content: '✓';
  color: var(--blue);
  font-weight: 700;
}

.compare-box {
  background: var(--bg-page);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.compare-box h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.compare-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.compare-item {
  padding: 20px;
  border-radius: var(--radius);
}

.compare-item.traditional {
  background: #FEF3C7;
}

.compare-item.mpos {
  background: var(--green-light);
}

.compare-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.intro-conclusion {
  background: var(--green-light);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  font-size: 16px;
  color: var(--green);
  font-weight: 600;
  margin-top: 30px;
}

/* 四大优势 */
.section-advantages {
  padding: 100px 24px;
  background: var(--bg-page);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.advantage-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  border-top: 4px solid var(--blue);
  transition: var(--transition);
}

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

.advantage-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

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

/* 便携性三方对比 */
.section-portability {
  padding: 100px 24px;
  background: white;
}

.portability-table {
  max-width: 1000px;
  margin: 0 auto;
  overflow-x: auto;
}

.portability-table table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

.portability-table th {
  background: var(--blue);
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.portability-table th:last-child {
  background: var(--green);
}

.portability-table td {
  font-size: 14px;
  color: var(--text-body);
}

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

.portability-table .highlight {
  background: var(--green-light);
  font-weight: 600;
}

.portability-conclusion {
  max-width: 800px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--green-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--green);
  font-weight: 500;
}

/* 适合场景 */
.section-scenarios {
  padding: 100px 24px;
  background: var(--bg-page);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.scenario-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  border-top: 4px solid var(--blue);
  transition: var(--transition);
}

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

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

.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

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

/* FAQ手风琴 */
.section-faq {
  padding: 100px 24px;
  background: white;
}

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

.faq-item {
  background: var(--bg-page);
  border-radius: var(--radius);
  margin-bottom: 12px;
  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;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-question::after {
  content: '+';
  font-size: 24px;
  color: var(--red);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ================================================
   8. 正规一清页专属
   ================================================ */

/* 一清等级对比 */
.section-grades {
  padding: 100px 24px;
  background: white;
}

.grades-intro {
  max-width: 800px;
  margin: 0 auto 50px;
  text-align: center;
}

.grades-intro h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.grades-intro p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

.grades-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}

.grade-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 2px solid var(--border);
  transition: var(--transition);
}

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

.grade-card.best {
  border-color: var(--green);
}

.grade-card.warning {
  border-color: #F59E0B;
}

.grade-card.danger {
  border-color: #EF4444;
}

.grade-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  text-align: center;
}

.grade-card ul {
  list-style: none;
}

.grade-card li {
  padding: 12px 0;
  font-size: 14px;
  color: var(--text-body);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

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

.grades-emphasis {
  max-width: 900px;
  margin: 50px auto 0;
  padding: 30px;
  background: var(--green-light);
  border-radius: var(--radius-lg);
  text-align: center;
}

.grades-emphasis h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 16px;
}

.grades-emphasis p {
  font-size: 15px;
  color: var(--green);
  line-height: 1.8;
}

/* 四大保障 */
.section-guarantees {
  padding: 100px 24px;
  background: var(--bg-page);
}

.guarantees-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.guarantee-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  border-left: 4px solid var(--green);
  transition: var(--transition);
}

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

.guarantee-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.guarantee-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.guarantee-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 四方对比表 */
.section-quad {
  padding: 100px 24px;
  background: white;
}

.quad-table {
  max-width: 1100px;
  margin: 0 auto;
  overflow-x: auto;
}

.quad-table table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

.quad-table th {
  background: var(--red);
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.quad-table th:last-child {
  background: var(--green);
}

.quad-table td {
  font-size: 14px;
  color: var(--text-body);
}

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

.quad-table .highlight {
  background: var(--green-light);
  font-weight: 600;
}

.quad-table .warning {
  background: #FEF3C7;
}

.quad-table .danger {
  background: #FEE2E2;
}

.quad-conclusion {
  max-width: 900px;
  margin: 50px auto 0;
  padding: 24px;
  background: var(--green-light);
  border-radius: var(--radius);
  text-align: center;
  font-size: 15px;
  color: var(--green);
  font-weight: 500;
}

/* 正规一清FAQ */
.section-secure-faq {
  padding: 100px 24px;
  background: var(--bg-page);
}

/* ================================================
   9. 关于页专属
   ================================================ */

.section-brand {
  padding: 100px 24px;
  background: white;
}

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

.brand-intro p {
  font-size: 18px;
  color: var(--text-body);
  line-height: 2;
}

.section-core {
  padding: 100px 24px;
  background: var(--bg-page);
}

.core-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.core-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
}

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

.core-number {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 800;
  color: var(--red);
  margin-bottom: 12px;
}

.core-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

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

.section-stats {
  padding: 100px 24px;
  background: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 40px;
  background: var(--bg-page);
  border-radius: var(--radius-lg);
}

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

.stat-value {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 800;
  color: var(--red);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  color: var(--text-muted);
}

.section-cert {
  padding: 100px 24px;
  background: var(--bg-page);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.cert-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
}

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

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

.cert-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
}

.section-about-cta {
  padding: 100px 24px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  text-align: center;
}

.about-cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.about-cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 30px;
}

/* ================================================
   10. 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);
}

/* ================================================
   11. 响应式
   ================================================ */

@media (max-width: 1024px) {
  .hero h1 {
    font-size: 40px;
  }
  
  .hero-animation {
    flex-direction: column;
    gap: 30px;
  }
  
  .animation-left,
  .animation-right {
    max-width: 100%;
  }
  
  .portable-cards,
  .secure-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .lineup-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .advantages-grid,
  .guarantees-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .core-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-links {
    display: none;
  }
  
  .navbar-cta {
    display: none;
  }
  
  .navbar-hamburger {
    display: flex;
  }
  
  .hero {
    padding: 120px 24px 60px;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 17px;
  }
  
  .section-title h2 {
    font-size: 28px;
  }
  
  .portable-cards,
  .secure-cards,
  .products-grid,
  .compare-grid,
  .why-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .lineup-grid {
    grid-template-columns: 1fr;
  }
  
  .advantages-grid,
  .guarantees-grid,
  .core-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  
  .grades-grid {
    grid-template-columns: 1fr;
  }
  
  .compare-items {
    grid-template-columns: 1fr;
  }
  
  .products-emphasis {
    flex-direction: column;
    gap: 20px;
  }
  
  .cta-features {
    flex-direction: column;
    gap: 16px;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .page-hero h1 {
    font-size: 36px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn-primary,
  .hero-cta .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}