/* ========================================
   联动优势智能POS官网 - 样式文件
   配色：联动橙 #EA580C | 墨黑 #1C1917 | 科技蓝 #0EA5E9 | 绿色 #22C55E
   ======================================== */

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

/* ========================================
   CSS变量
   ======================================== */
:root {
  --primary: #EA580C;
  --primary-dark: #C2410C;
  --primary-light: #FB923C;
  --dark: #1C1917;
  --dark-light: #292524;
  --dark-medium: #3f3a36;
  --blue: #0EA5E9;
  --green: #22C55E;
  --gold: #FBBF24;
  --bg-light: #FFF7ED;
  --bg-white: #FFFFFF;
  --bg-dark: #1C1917;
  --text-dark: #1A1A1A;
  --text-light: #E7E5E4;
  --text-muted: #A8A29E;
  --text-on-dark: rgba(255,255,255,0.85);
  --text-muted-on-dark: rgba(255,255,255,0.55);
  --border: #E7E5E4;
  --border-dark: #3f3a36;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --shadow-orange: 0 8px 30px rgba(234, 88, 12, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Barlow', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ========================================
   基础样式
   ======================================== */
*, *::before, *::after {
  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-dark);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
  list-style: none;
}

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

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

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

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

.container-sm {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 68px;
  background: rgba(28, 25, 23, 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  transition: var(--transition);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
}

.navbar-brand .logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 14px;
}

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

.nav-link {
  padding: 8px 16px;
  color: var(--text-muted-on-dark);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  margin-left: 12px;
  transition: var(--transition);
  box-shadow: var(--shadow-orange);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(234, 88, 12, 0.4);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* 手机端导航 */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  z-index: 999;
  padding: 20px;
}

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

.mobile-nav-link {
  display: block;
  padding: 16px 20px;
  color: var(--text-on-dark);
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid var(--border-dark);
  transition: var(--transition);
}

.mobile-nav-link:hover {
  color: var(--primary);
  padding-left: 28px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: var(--dark);
  padding: 48px 0 32px;
  text-align: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.footer-logo .logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 12px;
}

.footer-slogan {
  color: var(--text-muted-on-dark);
  font-size: 14px;
}

.footer-divider {
  width: 100%;
  max-width: 600px;
  height: 1px;
  background: var(--border-dark);
  margin: 0 auto 24px;
}

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

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

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

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

.footer-bottom a {
  color: var(--text-muted-on-dark);
}

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

/* ========================================
   公共组件
   ======================================== */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(234, 88, 12, 0.4);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

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

.btn-outline-dark:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

/* 标题组件 */
.section-title {
  font-size: 36px;
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
}

.section-title-light {
  color: #fff;
}

.section-subtitle-light {
  color: var(--text-muted-on-dark);
}

/* 卡片 */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.card-dark {
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
}

.card-dark:hover {
  border-color: var(--primary);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  border-radius: 50px;
}

.tag-dark {
  background: rgba(234, 88, 12, 0.15);
  color: var(--primary-light);
}

.tag-blue {
  background: rgba(14, 165, 233, 0.15);
  color: var(--blue);
}

.tag-green {
  background: rgba(34, 197, 94, 0.15);
  color: var(--green);
}

/* 高亮文字 */
.text-primary { color: var(--primary); }
.text-blue { color: var(--blue); }
.text-green { color: var(--green); }
.text-gold { color: var(--gold); }

/* 区块间距 */
.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--dark);
}

.section-light {
  background: var(--bg-light);
}

/* ========================================
   首页专属 - Hero区
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
  display: flex;
  align-items: center;
  padding-top: 68px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 28px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(34, 197, 94, 0); }
}

.hero-title {
  font-size: 48px;
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title .text-blue {
  color: var(--blue);
}

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

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted-on-dark);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-on-dark);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
}

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

/* ========================================
   首页专属 - 什么是智能POS
   ======================================== */
.pos-intro {
  padding: 100px 0;
}

.pos-intro .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.pos-intro .section-title {
  font-size: 32px;
  margin-bottom: 12px;
}

.pos-intro .section-subtitle {
  font-size: 16px;
  max-width: 600px;
}

.pos-types {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.pos-type-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  border: 2px solid var(--border);
  transition: var(--transition);
}

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

.pos-type-card.recommended {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(234, 88, 12, 0.05) 0%, var(--bg-white) 100%);
  position: relative;
}

.pos-type-card.recommended::before {
  content: '✨推荐';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
}

.pos-type-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  font-size: 48px;
  line-height: 1;
}

.pos-type-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.pos-type-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.pos-advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pos-advantage {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius);
}

.pos-advantage-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pos-advantage-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.pos-advantage h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.pos-advantage p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ========================================
   首页专属 - 精准定位展示区
   ======================================== */
.position-showcase {
  padding: 100px 0;
  background: var(--dark);
}

.position-showcase .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.position-layers {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto 40px;
}

.position-layer {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px;
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.position-layer:hover {
  border-color: var(--primary);
  transform: translateX(8px);
}

.position-layer-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.position-layer h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.position-layer p {
  font-size: 15px;
  color: var(--text-muted-on-dark);
  line-height: 1.6;
}

.position-emphasis {
  text-align: center;
  padding: 24px;
  background: rgba(234, 88, 12, 0.1);
  border: 1px solid rgba(234, 88, 12, 0.2);
  border-radius: var(--radius);
  margin-bottom: 32px;
  color: var(--primary-light);
  font-size: 16px;
  font-weight: 500;
}

.position-link {
  text-align: center;
}

/* ========================================
   首页专属 - 免费送说明区
   ======================================== */
.free-zone {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--dark-light) 0%, var(--dark) 100%);
}

.free-zone .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.free-reasons {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 700px;
  margin: 0 auto 40px;
}

.free-reason {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.free-reason:hover {
  border-color: var(--primary);
}

.free-reason-icon {
  flex-shrink: 0;
  font-size: 36px;
}

.free-reason h4 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.free-reason p {
  font-size: 14px;
  color: var(--text-muted-on-dark);
}

.free-emphasis {
  text-align: center;
  padding: 20px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius);
  margin-bottom: 32px;
  color: var(--green);
  font-size: 16px;
  font-weight: 600;
}

.free-compare {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.free-compare-item {
  padding: 20px 32px;
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  text-align: center;
}

.free-compare-item.highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-color: var(--primary);
}

.free-compare-price {
  font-size: 28px;
  font-weight: 900;
  color: #fff;
}

.free-compare-label {
  font-size: 13px;
  color: var(--text-muted-on-dark);
  margin-top: 4px;
}

.free-compare-item.highlight .free-compare-label {
  color: rgba(255,255,255,0.8);
}

/* ========================================
   首页专属 - 产品展示
   ======================================== */
.products-showcase {
  padding: 100px 0;
}

.products-showcase .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto 40px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
}

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

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 6px 14px;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50px;
}

.product-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--bg-light), var(--bg-white));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
}

.product-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.product-model {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.product-feature {
  padding: 6px 12px;
  background: var(--bg-light);
  color: var(--text-dark);
  font-size: 12px;
  font-weight: 500;
  border-radius: 50px;
}

.products-footer {
  text-align: center;
  margin-bottom: 32px;
  color: var(--text-muted);
  font-size: 15px;
}

.products-footer span {
  color: var(--primary);
  font-weight: 600;
}

.products-link {
  text-align: center;
}

/* ========================================
   首页专属 - 底部CTA
   ======================================== */
.hero-cta-section {
  padding: 100px 0;
  background: var(--dark);
  position: relative;
}

.hero-cta-section::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
}

.hero-cta-section .container {
  max-width: 700px;
}

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

.cta-title {
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 24px;
}

.cta-features {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.cta-feature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(34, 197, 94, 0.15);
  color: var(--green);
  font-size: 14px;
  font-weight: 500;
  border-radius: 50px;
}

/* 表单 */
.cta-form {
  background: var(--dark-light);
  border-radius: var(--radius-xl);
  padding: 40px;
  border: 1px solid var(--border-dark);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-on-dark);
}

.form-input,
.form-select {
  padding: 14px 18px;
  background: var(--dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  color: #fff;
  font-size: 15px;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus {
  border-color: var(--primary);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23A8A29E' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-select option {
  background: var(--dark);
  color: #fff;
}

.form-textarea {
  padding: 14px 18px;
  background: var(--dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  color: #fff;
  font-size: 15px;
  resize: vertical;
  min-height: 100px;
  transition: var(--transition);
}

.form-textarea:focus {
  border-color: var(--primary);
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: var(--transition);
  box-shadow: var(--shadow-orange);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(234, 88, 12, 0.4);
}

.cta-tips {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 20px;
  color: var(--text-muted-on-dark);
  font-size: 13px;
}

/* ========================================
   智能POS页专属
   ======================================== */
.page-hero {
  padding: 140px 0 80px;
  background: var(--dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -100px;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 18px;
  color: var(--text-muted-on-dark);
  max-width: 600px;
  margin: 0 auto;
}

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

.compare-section .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.compare-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
}

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

.compare-table th {
  background: var(--dark);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.compare-table th:last-child {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

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

.compare-table td:last-child {
  background: rgba(234, 88, 12, 0.03);
  color: var(--primary-dark);
  font-weight: 600;
}

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

.compare-table tr:hover td {
  background: var(--bg-light);
}

.compare-table .highlight-col td {
  background: rgba(234, 88, 12, 0.08);
}

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

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

.compare-conclusion {
  margin-top: 32px;
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-dark);
  font-size: 16px;
  font-weight: 500;
}

/* 产品详情 */
.product-detail {
  padding: 80px 0;
}

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

.product-detail-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.product-detail-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  flex-shrink: 0;
}

.product-detail-title h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.product-detail-title .badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50px;
  margin-right: 8px;
}

.product-detail-title .定位 {
  background: var(--blue);
}

.product-detail-desc {
  font-size: 15px;
  color: var(--text-muted);
}

.product-detail-params {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.param-item {
  padding: 16px;
  background: var(--bg-white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-dark);
  border: 1px solid var(--border);
}

.param-icon {
  font-size: 20px;
}

.product-detail-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

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

/* 核心功能 */
.core-features {
  padding: 100px 0;
  background: var(--dark);
}

.core-features .section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

.feature-card {
  padding: 32px 24px;
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.2), rgba(234, 88, 12, 0.05));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted-on-dark);
  line-height: 1.5;
}

/* 选购建议 */
.selection-advice {
  padding: 100px 0;
}

.selection-advice .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.selection-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.selection-card {
  padding: 32px;
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.selection-card:hover {
  border-color: var(--primary);
}

.selection-scenario {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.selection-product {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}

/* ========================================
   精准定位页专属
   ======================================== */
.position-tech {
  padding: 100px 0;
}

.position-tech .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.tech-intro {
  max-width: 800px;
  margin: 0 auto 48px;
}

.tech-intro h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 24px;
  text-align: center;
}

.tech-dimensions {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tech-dim {
  padding: 24px;
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.tech-dim h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.tech-dim p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 精准定位对比 */
.position-compare {
  padding: 100px 0;
  background: var(--bg-light);
}

.position-compare .section-header {
  text-align: center;
  margin-bottom: 48px;
}

/* 3步流程 */
.position-steps {
  padding: 100px 0;
}

.position-steps .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.step-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 价值卡片 */
.position-values {
  padding: 100px 0;
  background: var(--dark);
}

.position-values .section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

.value-card {
  padding: 32px 24px;
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.value-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.value-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.2), rgba(234, 88, 12, 0.05));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.value-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14px;
  color: var(--text-muted-on-dark);
  line-height: 1.5;
}

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

.faq-section .section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  transition: var(--transition);
}

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

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

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

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

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

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

/* ========================================
   免费领取页专属
   ======================================== */
.free-promise {
  padding: 100px 0;
}

.free-promise .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.promise-card {
  padding: 28px;
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}

.promise-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.promise-icon {
  font-size: 36px;
  flex-shrink: 0;
}

.promise-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.promise-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.promise-emphasis {
  text-align: center;
  margin-top: 32px;
  padding: 20px;
  background: rgba(234, 88, 12, 0.05);
  border: 1px solid rgba(234, 88, 12, 0.2);
  border-radius: var(--radius);
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 500;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* 免费功能 */
.free-functions {
  padding: 100px 0;
  background: var(--bg-light);
}

.free-functions .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.functions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.function-card {
  padding: 32px 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.function-num {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50px;
  margin-bottom: 16px;
}

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

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

.function-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 办理流程 */
.apply-process {
  padding: 100px 0;
}

.apply-process .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  margin-bottom: 48px;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: var(--border);
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

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

.process-requirements {
  text-align: center;
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  max-width: 500px;
  margin: 0 auto;
}

.process-requirements h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

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

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

.apply-form-section .section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

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

.apply-form .form-group {
  margin-bottom: 20px;
}

.apply-success {
  text-align: center;
  padding: 40px;
}

.apply-success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--green), #16a34a);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.apply-success h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

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

/* ========================================
   关于页专属
   ======================================== */
.company-intro {
  padding: 100px 0;
  text-align: center;
}

.company-intro p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
}

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

.core-advantages .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.advantage-card {
  padding: 40px 28px;
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  text-align: center;
  border: 2px solid var(--border);
  transition: var(--transition);
}

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

.advantage-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.1), rgba(234, 88, 12, 0.05));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.advantage-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 理念区块 */
.philosophy {
  padding: 100px 0;
  background: var(--dark);
}

.philosophy .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.philosophy-content {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.philosophy-content p {
  font-size: 18px;
  color: var(--text-on-dark);
  line-height: 1.8;
  margin-bottom: 20px;
}

.philosophy-quote {
  padding: 24px 32px;
  background: rgba(234, 88, 12, 0.1);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--primary-light);
  font-size: 18px;
  font-weight: 500;
  text-align: left;
}

/* 数据展示 */
.data-showcase {
  padding: 80px 0;
  background: var(--dark-light);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.data-item {
  text-align: center;
}

.data-value {
  font-size: 48px;
  font-weight: 900;
  color: var(--primary);
  font-family: var(--font-en);
  margin-bottom: 8px;
}

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

/* 资质展示 */
.certifications {
  padding: 100px 0;
}

.certifications .section-header {
  text-align: center;
  margin-bottom: 48px;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.cert-card {
  padding: 40px 24px;
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: var(--transition);
}

.cert-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.cert-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

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

/* 联系CTA */
.contact-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  text-align: center;
}

.contact-cta h2 {
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 32px;
}

/* ========================================
   深色区块通用样式
   ======================================== */
.dark-section {
  background: var(--dark);
  color: var(--text-on-dark);
}

.dark-card {
  background: var(--dark-light);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
}

.dark-title {
  color: #fff;
}

.dark-subtitle {
  color: var(--text-muted-on-dark);
}

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

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

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

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

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

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

/* 步骤动画 */
.step-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* 数字滚动 */
.count-up {
  display: inline-block;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .pos-types {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pos-advantages {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-tags {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .pos-types {
    grid-template-columns: 1fr;
  }
  
  .pos-advantages {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .steps-grid::before {
    display: none;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .process-steps::before {
    display: none;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .certs-grid {
    grid-template-columns: 1fr;
  }
  
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .product-detail-params {
    grid-template-columns: 1fr;
  }
  
  .selection-grid {
    grid-template-columns: 1fr;
  }
  
  .promise-grid {
    grid-template-columns: 1fr;
  }
  
  .functions-grid {
    grid-template-columns: 1fr;
  }
  
  .page-hero h1 {
    font-size: 32px;
  }
  
  .cta-title {
    font-size: 28px;
  }
  
  .cta-form {
    padding: 24px;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 12px;
  }
  
  .cta-tips {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .page-hero {
    padding: 120px 0 60px;
  }
  
  .page-hero h1 {
    font-size: 28px;
  }
  
  .data-value {
    font-size: 36px;
  }
}