/* ========================================
   海科融通手刷MPOS - 青绿轻快风格 CSS
   配色：青绿#0D9488 + 橙色#F97316 + 亮绿#22C55E
   风格：轻快高效，突出快速审批+费率0.38
   ======================================== */

/* ========== 1. CSS变量 ========== */
:root {
  --teal-green: #0D9488;
  --teal-green-dark: #0F766E;
  --teal-green-deep: #115E59;
  --teal-green-deeper: #042F2E;
  --orange: #F97316;
  --orange-light: #FFF7ED;
  --orange-hover: #EA580C;
  --green: #22C55E;
  --green-light: #F0FDF4;
  --bg-white: #FFFFFF;
  --bg-page: #F0FDFA;
  --bg-light: #CCFBF1;
  --text-dark: #134E4A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --card-shadow: 0 2px 8px rgba(13,148,136,0.08);
  --shadow-sm: 0 1px 3px rgba(13,148,136,0.06);
  --shadow-md: 0 8px 24px rgba(13,148,136,0.12);
  --shadow-lg: 0 16px 48px rgba(13,148,136,0.16);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Barlow', 'Noto Sans SC', sans-serif;
}

/* ========== 2. 基础重置 ========== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

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

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

ul, ol {
  list-style: none;
}

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

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

/* ========== 3. 字体导入 ========== */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700;800&display=swap');

/* ========== 4. 通用工具类 ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

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

.section-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

.text-teal { color: var(--teal-green); }
.text-orange { color: var(--orange); }
.text-green { color: var(--green); }

.bg-teal-gradient {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-deep) 100%);
}

.bg-page { background: var(--bg-page); }

/* ========== 5. 导航栏 ========== */
.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(13, 148, 136, 0.12);
}

.navbar-inner {
  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: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--teal-green);
}

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

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  position: relative;
  padding: 4px 0;
}

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

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

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

.navbar-cta {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  color: white !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

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

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 汉堡菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--teal-green);
  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);
}

/* 移动端导航 */
.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: white;
  padding: 16px 24px;
  box-shadow: var(--shadow-md);
  z-index: 999;
}

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

.mobile-nav a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-body);
  border-bottom: 1px solid var(--border);
}

.mobile-nav a:last-child {
  border-bottom: none;
  color: var(--teal-green);
  font-weight: 600;
}

.mobile-nav a:hover {
  color: var(--teal-green);
}

/* ========== 6. Hero区 ========== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-deep) 100%);
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-badge {
  display: inline-block;
  background: rgba(249, 115, 22, 0.15);
  color: var(--orange);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto 40px;
}

/* 审批进度条 */
.approval-progress {
  max-width: 700px;
  margin: 0 auto 48px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.progress-title {
  color: white;
  font-size: 14px;
  margin-bottom: 20px;
  opacity: 0.9;
}

.progress-track {
  position: relative;
  height: 8px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  margin-bottom: 16px;
}

.progress-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--orange);
  border-radius: 4px;
  width: 0;
  animation: progressAnimation 3s ease-in-out infinite;
}

@keyframes progressAnimation {
  0% { width: 0%; }
  25% { width: 33%; }
  50% { width: 66%; }
  75% { width: 85%; }
  100% { width: 100%; }
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.progress-step {
  text-align: center;
  flex: 1;
}

.progress-step-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  font-size: 16px;
  transition: var(--transition);
}

.progress-step.active .progress-step-icon {
  background: var(--orange);
}

.progress-step-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

.progress-step.active .progress-step-label {
  color: white;
  font-weight: 600;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-hover) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.5);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}

.btn-teal {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ========== 7. 卡片样式 ========== */
.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: var(--transition);
  border-top: 3px solid var(--teal-green);
  border-bottom: 2px solid transparent;
}

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

.card-orange-border {
  border-top-color: var(--orange);
}

.card-green-border {
  border-left: 3px solid var(--green);
}

.card-body {
  padding: 24px;
}

/* ========== 8. 快速审批区 ========== */
.fast-approve-section {
  background: var(--bg-page);
}

.feature-card {
  background: white;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--orange);
  transition: var(--transition);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--orange-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

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

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.section-emphasis {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  color: white;
  padding: 24px 32px;
  border-radius: var(--radius);
  margin-top: 32px;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--teal-green);
  font-weight: 600;
  margin-top: 24px;
}

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

/* ========== 9. 费率说明区 ========== */
.rate-section {
  background: white;
}

.rate-card {
  background: white;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border-left: 3px solid var(--green);
  transition: var(--transition);
}

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

.rate-icon {
  width: 48px;
  height: 48px;
  background: var(--green-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

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

.rate-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.rate-quick-cards {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.rate-quick-card {
  background: var(--green-light);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 12px;
}

.rate-quick-card span {
  font-size: 24px;
}

.rate-quick-card small {
  color: var(--text-muted);
  font-size: 14px;
}

.rate-quick-card strong {
  color: var(--green);
  font-size: 20px;
}

/* ========== 10. 产品展示区 ========== */
.products-section {
  background: var(--bg-page);
}

.product-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border-top: 4px solid var(--teal-green);
  transition: var(--transition);
}

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

.product-card-inner {
  padding: 32px;
  border-bottom: 2px solid var(--orange);
}

.product-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  margin-bottom: 20px;
}

.product-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

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

.product-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.product-tag {
  padding: 6px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

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

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

.product-features {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.product-card-footer {
  padding: 20px 32px;
}

/* ========== 11. 选择理由 ========== */
.why-section {
  background: white;
}

.reason-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-page);
  border-radius: var(--radius);
  transition: var(--transition);
}

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

.reason-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--teal-green);
  margin-bottom: 12px;
  font-family: var(--font-en);
}

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

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

.reason-desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* ========== 12. 省钱对比 ========== */
.save-section {
  background: var(--bg-page);
}

.compare-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

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

.compare-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.compare-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

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

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

.compare-value {
  font-weight: 600;
  color: var(--text-body);
}

.compare-save {
  color: var(--green);
  font-weight: 700;
}

.save-emphasis {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  color: white;
  padding: 24px 32px;
  border-radius: var(--radius);
  text-align: center;
  font-size: 18px;
}

/* ========== 13. 底部CTA ========== */
.cta-section {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-deep) 100%);
  padding: 80px 0;
}

.cta-content {
  text-align: center;
}

.cta-title {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 24px;
}

.cta-features {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
}

.cta-form {
  max-width: 480px;
  margin: 0 auto;
  background: var(--teal-green-deeper);
  padding: 32px;
  border-radius: var(--radius-lg);
}

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

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 15px;
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus {
  outline: none;
  border-color: var(--orange);
}

.cta-form .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 17px;
}

.cta-tips {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== 14. 页脚 ========== */
.footer {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-deep) 100%);
  padding: 60px 0 0;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  color: white;
}

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

.footer-slogan {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 16px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  background: var(--teal-green-deeper);
  padding: 20px 0;
}

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

.footer-bottom-content a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-content a:hover {
  color: white;
}

/* ========== 15. 页面标题区 ========== */
.page-hero {
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-deep) 100%);
  padding: 140px 0 80px;
  text-align: center;
}

.page-hero-title {
  font-size: 44px;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
}

.page-hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
}

/* ========== 16. 功能展示 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.func-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--teal-green);
  transition: var(--transition);
}

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

.func-icon {
  width: 56px;
  height: 56px;
  background: var(--bg-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.func-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.func-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 17. 对比表格 ========== */
.compare-table-wrapper {
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  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);
  font-size: 14px;
}

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

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

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

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

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

/* ========== 18. 产品详情 ========== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: white;
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--card-shadow);
  margin-bottom: 32px;
}

.product-detail.reverse {
  direction: rtl;
}

.product-detail.reverse > * {
  direction: ltr;
}

.product-detail-icon {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--teal-green) 0%, var(--teal-green-dark) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  margin-bottom: 24px;
}

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

.product-detail-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.product-detail-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

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

.param-item {
  background: var(--bg-page);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-body);
}

.product-detail-for {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ========== 19. 流程步骤 ========== */
.steps-wrapper {
  position: relative;
}

.steps-line {
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 4px;
  background: var(--bg-light);
  z-index: 0;
}

.steps-line-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--orange);
  width: 0;
  animation: stepsLineAnimation 3s ease-in-out infinite;
}

@keyframes stepsLineAnimation {
  0% { width: 0%; }
  50% { width: 50%; }
  100% { width: 100%; }
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
  z-index: 1;
}

.step-card {
  text-align: center;
}

.step-icon {
  width: 56px;
  height: 56px;
  background: white;
  border: 3px solid var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
  transition: var(--transition);
}

.step-card:hover .step-icon {
  border-color: var(--orange);
  transform: scale(1.1);
}

.step-number {
  font-size: 12px;
  font-weight: 700;
  color: var(--teal-green);
  margin-bottom: 8px;
  font-family: var(--font-en);
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== 20. FAQ手风琴 ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  transition: var(--transition);
}

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

.faq-icon {
  font-size: 20px;
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--orange);
}

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

.faq-item.active .faq-answer {
  max-height: 300px;
}

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

/* ========== 21. 省钱计算器 ========== */
.calculator {
  background: var(--teal-green-deeper);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.calculator-title {
  font-size: 28px;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.calculator-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
}

.calculator-input-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
}

.calculator-input {
  flex: 1;
  max-width: 280px;
  padding: 16px 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 18px;
  text-align: center;
}

.calculator-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.calculator-input:focus {
  outline: none;
  border-color: var(--orange);
}

.calculator-btn {
  padding: 16px 40px;
  background: var(--orange);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}

.calculator-btn:hover {
  background: var(--orange-hover);
  transform: translateY(-2px);
}

.calculator-result {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: none;
}

.calculator-result.show {
  display: block;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
}

.result-row:last-child {
  border-bottom: none;
}

.result-value {
  font-weight: 600;
  color: white;
}

.result-save {
  color: var(--green);
  font-weight: 700;
}

.calculator-cta {
  margin-top: 24px;
}

/* ========== 22. 费率表格 ========== */
.rate-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.rate-table th,
.rate-table td {
  padding: 16px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.rate-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-dark);
  font-size: 15px;
}

.rate-table td {
  font-size: 15px;
  color: var(--text-body);
}

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

.rate-table .amount {
  font-family: var(--font-en);
  font-weight: 600;
}

.rate-table .save {
  color: var(--green);
  font-weight: 700;
}

/* ========== 23. 承诺卡片 ========== */
.promise-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--green);
  text-align: center;
  transition: var(--transition);
}

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

.promise-icon {
  width: 64px;
  height: 64px;
  background: var(--green-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 20px;
}

.promise-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.promise-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 24. 关于页 ========== */
.about-intro {
  background: white;
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--card-shadow);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about-intro p {
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.9;
}

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

.stat-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--card-shadow);
  border-top: 3px solid var(--teal-green);
}

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

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--teal-green);
  margin-bottom: 8px;
  font-family: var(--font-en);
}

.stat-label {
  font-size: 15px;
  color: var(--text-muted);
}

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

.cert-card {
  background: var(--bg-page);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  border: 2px solid var(--bg-light);
  transition: var(--transition);
}

.cert-card:hover {
  border-color: var(--teal-green);
}

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

.cert-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
}

/* ========== 25. 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);
}

/* ========== 26. 响应式 ========== */
@media (max-width: 1024px) {
  .navbar-nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .section-title {
    font-size: 30px;
  }
  
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .steps-line {
    display: none;
  }
  
  .compare-wrapper {
    grid-template-columns: 1fr;
  }
  
  .product-detail {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .product-detail.reverse {
    direction: ltr;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 26px;
  }
  
  .section-subtitle {
    font-size: 15px;
  }
  
  .approval-progress {
    padding: 20px;
  }
  
  .progress-steps {
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .progress-step {
    flex: none;
    width: 45%;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .step-card {
    display: flex;
    gap: 16px;
    text-align: left;
  }
  
  .step-icon {
    margin: 0;
    flex-shrink: 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .cert-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-features {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-links ul {
    align-items: center;
  }
  
  .page-hero {
    padding: 120px 0 60px;
  }
  
  .page-hero-title {
    font-size: 32px;
  }
  
  .calculator {
    padding: 24px;
  }
  
  .calculator-input-group {
    flex-direction: column;
  }
  
  .calculator-input {
    max-width: 100%;
  }
}

/* ========== 27. 加载动画 ========== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== 28. 表单反馈 ========== */
.form-success {
  background: var(--green-light);
  color: var(--green);
  padding: 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  margin-top: 16px;
  display: none;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}