/* ============================================
   海科融通手刷MPOS - 共享样式文件
   风格：年轻活力，靛蓝+玫红撞色
   ============================================ */

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

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

:root {
  /* 配色系统 */
  --primary: #6366F1;
  --primary-dark: #4338CA;
  --rose: #F43F5E;
  --rose-dark: #E11D48;
  --teal: #14B8A6;
  --bg-white: #FFFFFF;
  --bg-page: #FAFAFA;
  --bg-light: #EEF2FF;
  --text-dark: #1E1B4B;
  --text-body: #374151;
  --text-muted: #6B7280;
  --text-light: #A5B4FC;
  --border: #E5E7EB;
  
  /* 阴影 */
  --card-shadow: 0 4px 12px rgba(99,102,241,0.08);
  --shadow-md: 0 8px 24px rgba(99,102,241,0.12);
  --shadow-lg: 0 12px 40px rgba(99,102,241,0.16);
  
  /* 圆角 */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 50px;
  
  /* 过渡 */
  --transition: all 0.3s ease;
  
  /* 字体 */
  --font-cn: 'Noto Sans SC', sans-serif;
  --font-en: 'Barlow', sans-serif;
}

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

body {
  font-family: var(--font-cn);
  color: var(--text-body);
  background-color: var(--bg-page);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 900;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

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

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  background: none;
}

/* ========== 2. 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 66px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(99,102,241,0.08);
  z-index: 1000;
}

.navbar .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
}

.navbar-logo svg {
  width: 36px;
  height: 36px;
}

.navbar-logo span {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.navbar-nav a {
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  color: var(--text-body);
  transition: var(--transition);
}

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

.navbar-nav a.active {
  color: var(--primary);
  background: var(--bg-light);
}

/* CTA按钮集成在导航中 */
.navbar-nav a.cta-btn {
  background: linear-gradient(135deg, var(--rose), var(--rose-dark));
  color: #fff !important;
  font-weight: 600;
  padding: 10px 24px;
}

.navbar-nav a.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(244,63,94,0.4);
}

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

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

/* 手机端导航 */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .navbar-nav {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    box-shadow: 0 8px 30px rgba(99,102,241,0.12);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .navbar-nav a {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
  
  .navbar-nav a.cta-btn {
    margin-top: 8px;
  }
}

/* ========== 3. 页脚 - 双色调设计 ========== */
.footer {
  margin-top: 0;
}

.footer-top {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 60px 20px;
}

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

.footer-brand {
  color: #fff;
}

.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand .logo svg {
  width: 40px;
  height: 40px;
}

.footer-brand .logo span {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-brand .slogan {
  font-size: 1rem;
  opacity: 0.9;
  line-height: 1.8;
}

.footer-links h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 20px;
  font-weight: 600;
}

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

.footer-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  transition: var(--transition);
}

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

.footer-bottom {
  background: var(--primary-dark);
  padding: 20px;
  text-align: center;
}

.footer-bottom .container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-bottom p {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  line-height: 1.8;
}

.footer-bottom a {
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .footer-top .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .footer-brand .logo {
    justify-content: center;
  }
  
  .footer-links ul {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }
}

/* ========== 4. 公共组件 ========== */

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

/* 圆角大卡片 */
.card {
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 30px;
  transition: var(--transition);
}

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

/* Pill按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--rose), var(--rose-dark));
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244,63,94,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.6);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* 撞色渐变背景 */
.gradient-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--rose) 100%);
}

.gradient-split {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--rose) 100%);
}

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
}

.badge-primary {
  background: var(--bg-light);
  color: var(--primary);
}

.badge-rose {
  background: rgba(244,63,94,0.1);
  color: var(--rose);
}

.badge-teal {
  background: rgba(20,184,166,0.1);
  color: var(--teal);
}

/* 页面标题区 */
.page-hero {
  padding: 140px 20px 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

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

.page-hero h1 {
  color: #fff;
  font-size: 3rem;
  margin-bottom: 16px;
}

.page-hero p {
  color: rgba(255,255,255,0.9);
  font-size: 1.2rem;
}

@media (max-width: 768px) {
  .page-hero {
    padding: 120px 20px 60px;
  }
  
  .page-hero h1 {
    font-size: 2rem;
  }
}

/* 章节标题 */
.section {
  padding: 80px 20px;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-title p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 20px;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
}

/* ========== 5. 首页专属样式 ========== */

/* Hero区 */
.hero {
  min-height: 100vh;
  padding: 120px 20px 80px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--rose) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(244,63,94,0.3) 0%, transparent 60%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: 3.5rem;
  color: #fff;
  margin-bottom: 24px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.hero-subtitle {
  color: rgba(255,255,255,0.9);
  font-size: 1.25rem;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.hero-device {
  margin-top: 60px;
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-device-card {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  color: #fff;
  width: 200px;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-device-card .icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.hero-device-card h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 8px;
}

.hero-device-card p {
  font-size: 0.9rem;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 20px 60px;
    min-height: auto;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-device {
    gap: 20px;
  }
  
  .hero-device-card {
    width: 160px;
    padding: 20px;
  }
}

/* 小巧便携展示区 */
.size-showcase {
  background: var(--bg-white);
}

.size-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.size-card {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
}

.size-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.size-card .icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.size-card h4 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.size-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

/* 激活返现说明区 */
.cashback-rules {
  background: var(--bg-page);
}

.cashback-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.cashback-step {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  position: relative;
}

.cashback-step::after {
  content: '→';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--primary);
}

.cashback-step:last-child::after {
  display: none;
}

.cashback-step .num {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.3rem;
  margin: 0 auto 20px;
}

.cashback-step h4 {
  margin-bottom: 12px;
}

.cashback-step p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.tier-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.tier-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  border: 2px solid transparent;
  transition: var(--transition);
}

.tier-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.tier-card.bronze {
  border-color: #CD7F32;
}

.tier-card.silver {
  border-color: #C0C0C0;
}

.tier-card.gold {
  border-color: #FFD700;
  background: linear-gradient(135deg, rgba(255,215,0,0.05), rgba(255,215,0,0.1));
}

.tier-card .tier-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.tier-card h4 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.tier-card .amount {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--rose);
  margin-bottom: 8px;
}

.tier-card .condition {
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .cashback-steps {
    grid-template-columns: 1fr;
  }
  
  .cashback-step::after {
    display: none;
  }
  
  .tier-cards {
    grid-template-columns: 1fr;
  }
}

/* 产品展示区 */
.products {
  background: var(--bg-white);
}

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

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-card-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 40px 30px;
  text-align: center;
  position: relative;
}

.product-card-header .badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--rose);
  color: #fff;
}

.product-card-header .icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.product-card-header h3 {
  color: #fff;
  font-size: 1.5rem;
}

.product-card-body {
  padding: 30px;
}

.product-card-body ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.product-card-body li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
}

.product-card-body li::before {
  content: '✓';
  color: var(--teal);
  font-weight: 700;
}

@media (max-width: 768px) {
  .product-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
}

/* 6宫格场景 */
.scenarios {
  background: var(--bg-page);
}

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

.scenario-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.scenario-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.scenario-card .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.scenario-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.scenario-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

/* 底部CTA申请区 */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--rose) 100%);
  padding: 80px 20px;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 40px;
}

.cta-form {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 600px;
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.2);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.form-group {
  text-align: left;
}

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

.form-group label {
  display: block;
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.95);
  color: var(--text-dark);
  font-size: 1rem;
}

.form-group textarea {
  border-radius: var(--radius);
  min-height: 100px;
  resize: vertical;
}

.cta-form .btn-white {
  width: 100%;
  padding: 16px;
  font-size: 1.1rem;
}

.cta-form .tips {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .cta-section h2 {
    font-size: 1.8rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-form {
    padding: 30px 20px;
  }
}

/* ========== 6. 小巧便携页专属 ========== */
.size-detail {
  background: var(--bg-white);
}

.size-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.size-metric {
  background: linear-gradient(135deg, var(--bg-light), rgba(99,102,241,0.05));
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  transition: var(--transition);
}

.size-metric:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.size-metric .icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.size-metric h4 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.size-metric p {
  color: var(--text-muted);
}

.comparison-table {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
}

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

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

.comparison-table td {
  color: var(--text-body);
}

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

.comparison-table .highlight {
  color: var(--primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .size-metrics {
    grid-template-columns: 1fr;
  }
  
  .comparison-table {
    overflow-x: auto;
  }
  
  .comparison-table table {
    min-width: 600px;
  }
}

/* 核心功能 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.feature-card .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* 蓝牙连接步骤 */
.bluetooth-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.bluetooth-step {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  position: relative;
}

.bluetooth-step::after {
  content: '→';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--teal);
}

.bluetooth-step:last-child::after {
  display: none;
}

.bluetooth-step .num {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--teal), #0D9488);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.3rem;
  margin: 0 auto 20px;
}

.bluetooth-step h4 {
  margin-bottom: 12px;
}

.bluetooth-step p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .bluetooth-steps {
    grid-template-columns: 1fr;
  }
  
  .bluetooth-step::after {
    display: none;
  }
}

/* ========== 7. 激活返现页专属 ========== */
.cashback-rules-detail {
  background: var(--bg-page);
}

.cashback-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.cashback-flow-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  position: relative;
}

.cashback-flow-card::after {
  content: '→';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--rose);
}

.cashback-flow-card:last-child::after {
  display: none;
}

.cashback-flow-card .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.cashback-flow-card h4 {
  margin-bottom: 12px;
}

.cashback-flow-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.cashback-note {
  background: rgba(244,63,94,0.05);
  border: 1px solid rgba(244,63,94,0.2);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  color: var(--rose-dark);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .cashback-flow {
    grid-template-columns: 1fr;
  }
  
  .cashback-flow-card::after {
    display: none;
  }
}

/* 返现档次详情 */
.tier-detail {
  background: var(--bg-white);
}

.tier-detail-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.tier-detail-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 30px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.tier-detail-card:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.tier-detail-card .tier-icon {
  font-size: 4rem;
  flex-shrink: 0;
}

.tier-detail-card .tier-info {
  flex: 1;
}

.tier-detail-card h4 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.tier-detail-card .condition {
  color: var(--text-muted);
  font-size: 1rem;
}

.tier-detail-card .amount {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--rose);
}

@media (max-width: 768px) {
  .tier-detail-card {
    flex-direction: column;
    text-align: center;
    padding: 30px;
  }
}

/* 返现计算器 */
.calculator {
  background: linear-gradient(135deg, var(--rose), var(--rose-dark));
  border-radius: var(--radius);
  padding: 60px 40px;
  text-align: center;
  color: #fff;
}

.calculator h3 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 12px;
}

.calculator > p {
  opacity: 0.9;
  margin-bottom: 40px;
}

.calculator-form {
  max-width: 500px;
  margin: 0 auto;
}

.calculator-form input {
  width: 100%;
  padding: 18px 24px;
  border-radius: var(--radius-pill);
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 20px;
  background: rgba(255,255,255,0.95);
  color: var(--text-dark);
}

.calculator-result {
  margin-top: 30px;
  padding: 30px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius);
  display: none;
}

.calculator-result.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.calculator-result .amount {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.calculator-result .desc {
  opacity: 0.9;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .calculator {
    padding: 40px 20px;
  }
  
  .calculator h3 {
    font-size: 1.5rem;
  }
}

/* 返现案例 */
.case-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.case-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.case-card .avatar {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.case-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.case-card .job {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.case-card .stats {
  display: flex;
  justify-content: space-between;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.case-card .stat {
  text-align: center;
}

.case-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.case-card .stat-value {
  font-weight: 700;
  color: var(--primary);
}

.case-card .status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
}

.case-card .status.success {
  background: rgba(20,184,166,0.1);
  color: var(--teal);
}

.case-card .status.pending {
  background: rgba(251,191,36,0.1);
  color: #D97706;
}

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

/* ========== 8. 关于页专属 ========== */
.about-intro {
  background: var(--bg-white);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about-intro p {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--text-body);
}

/* 3大核心优势 */
.advantages {
  background: var(--bg-page);
}

.advantage-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.advantage-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.advantage-card .icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
}

.advantage-card h4 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

/* 办理说明 */
.process {
  background: var(--bg-white);
}

.process-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.process-card {
  background: linear-gradient(135deg, var(--bg-light), rgba(99,102,241,0.05));
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
}

.process-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.process-card .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.process-card h4 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.process-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

/* FAQ手风琴 */
.faq {
  background: var(--bg-page);
}

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

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

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 20px 24px;
}

.faq-item.active .faq-question::after {
  transform: rotate(180deg);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-dark);
}

.faq-question::after {
  content: '▼';
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  color: var(--text-body);
  line-height: 1.8;
  transition: var(--transition);
}

/* 资质展示 */
.certifications {
  background: var(--bg-white);
}

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

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

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.cert-card .icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.cert-card h4 {
  font-size: 1.1rem;
}

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

/* ========== 9. 动画 ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.animate-fade {
  animation: fadeIn 0.6s ease forwards;
}

.animate-bounce {
  animation: bounceIn 0.8s ease forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease forwards;
}

.animate-pulse {
  animation: pulse 2s ease infinite;
}

/* 滚动触发动画 */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========== 10. 响应式 ========== */
@media (max-width: 1024px) {
  .container {
    padding: 0 30px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  
  .section {
    padding: 60px 20px;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }
}

/* 表单成功提示 */
.form-success {
  background: rgba(20,184,166,0.1);
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--teal);
  margin-top: 20px;
  display: none;
}

.form-success.active {
  display: block;
  animation: fadeIn 0.3s ease;
}