/* ================================
   合肥GEO - 外部样式表 v3.0
   城市特色配色 - 合肥专属
   ================================ */
:root {
  /* 深圳专属清新调色板 */
  --color-bg: #F5F3FF;
  --color-bg-alt: #FFFFFF;
  --color-bg-card: #FFFFFF;
  --color-surface: #FFFFFF;

  --color-primary: #4F46E5;      /* 科技蓝紫 */
  --color-primary-dark: #4338CA;
  --color-primary-light: #E0E7FF;
  --color-accent: #0891B2;      /* 创新青 */
  --color-accent-light: #CFFAFE;
  --color-accent-2: #059669;     /* 活力绿 */
  --color-accent-2-light: #D1FAE5;
  --color-accent-3: #EA580C;    /* 智慧紫 */

  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;

  --font-heading: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.25; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.4);
}

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

.btn-ghost:hover {
  background: var(--color-primary-light);
}

/* ===== 标签 ===== */
.badge {
  display: inline-block;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 100px;
  border: 1px solid;
}

.badge-blue { background: var(--color-primary-light); border-color: rgba(37,99,235,0.2); color: var(--color-primary); }
.badge-cyan { background: var(--color-accent-light); border-color: rgba(8,145,178,0.2); color: var(--color-accent); }
.badge-green { background: var(--color-accent-2-light); border-color: rgba(5,150,105,0.2); color: var(--color-accent-2); }
.badge-purple { background: #EDE9FE; border-color: rgba(124,58,237,0.2); color: var(--color-accent-3); }
.badge-sz { background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light)); border-color: rgba(37,99,235,0.15); color: var(--color-primary); }

/* ===== 导航 ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(240, 247, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all 0.3s var(--ease-out);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.logo span { color: var(--color-primary); }

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

.nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s;
  position: relative;
}

.nav-link:hover { color: var(--color-primary); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: width 0.25s var(--ease-out);
}
.nav-link:hover::after { width: 100%; }

.nav-cta .btn { padding: 10px 20px; font-size: 14px; }

/* ===== Hero ===== */
.hero {
  padding: 130px 0 90px;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

/* 清新科技光晕 */
.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 65%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.07) 0%, transparent 65%);
  pointer-events: none;
}

.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { position: relative; z-index: 1; }

.hero-tag { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 20px; }

/* 深圳专属 Hero Badge - 科技蓝清新风 */
.hero-badge {
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  border-radius: 100px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
  letter-spacing: 0.03em;
}

.hero-location { font-size: 14px; font-weight: 600; color: var(--color-text-muted); }

.hero h1 {
  font-size: clamp(36px, 5vw, 54px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  line-height: 1.1;
}

/* 深圳专属 H1 渐变高亮 - 科技蓝青 */
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 500px;
  line-height: 1.75;
}

.hero-buttons { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 40px; }
.hero-stat { text-align: left; }
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.hero-stat-label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); margin-top: 4px; }

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

/* 清新白卡 */
.hero-card-main {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: 0 8px 40px rgba(37, 99, 235, 0.08), 0 2px 8px rgba(0,0,0,0.04);
}

.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.card-title { font-family: var(--font-heading); font-size: 15px; font-weight: 700; color: var(--color-text); }
.card-badge {
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  background: var(--color-accent-2-light);
  color: var(--color-accent-2);
  border-radius: 100px;
  border: 1px solid rgba(5,150,105,0.2);
}

.platform-bars { display: flex; flex-direction: column; gap: 16px; }
.platform-bar-item { display: flex; flex-direction: column; gap: 8px; }
.platform-bar-label { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; color: var(--color-text); }
.platform-bar-track { height: 8px; background: var(--color-border-light); border-radius: 100px; overflow: hidden; }
.platform-bar-fill { height: 100%; border-radius: 100px; animation: barFill 1.5s var(--ease-out) forwards; }
@keyframes barFill { from { width: 0; } }

.bar-blue { background: linear-gradient(90deg, var(--color-primary), #60A5FA); }
.bar-purple { background: linear-gradient(90deg, var(--color-accent-3), #A78BFA); }
.bar-green { background: linear-gradient(90deg, var(--color-accent-2), #34D399); }
.bar-orange { background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); }
.bar-pink { background: linear-gradient(90deg, var(--color-accent-3), #F472B6); }

/* ===== City Highlights ===== */
.city-highlights {
  padding: 52px 0;
  background: #fff;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

/* 深圳专属清爽分割线 */
.city-highlights::before {
  content: '';
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%);
  width: 80px; height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-accent-2));
  border-radius: 0 0 4px 4px;
}

.highlights-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.highlight-item {
  text-align: center;
  padding: 28px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
}
.highlight-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.1);
  border-color: var(--color-primary-light);
  background: #fff;
}
.highlight-icon { font-size: 36px; margin-bottom: 12px; }
.highlight-num {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.highlight-label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); }

/* ===== Partner ===== */
.partner-section { padding: 80px 0; background: var(--color-bg); }

.partner-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  box-shadow: 0 8px 40px rgba(37, 99, 235, 0.06);
  position: relative;
  overflow: hidden;
}

/* 顶部蓝色装饰条 */
.partner-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-accent-2));
}

.partner-badge {
  display: inline-block;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  border-radius: 100px;
  margin-bottom: 20px;
}

.partner-content h2 { font-size: clamp(26px, 3.5vw, 34px); font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.partner-content h2 .highlight { color: var(--color-primary); }
.partner-content > p { font-size: 15px; color: var(--color-text-muted); margin-bottom: 24px; line-height: 1.8; }

.partner-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.partner-feature { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; }
.partner-feature .check {
  width: 22px; height: 22px;
  background: var(--color-accent-2-light);
  color: var(--color-accent-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* 深圳专属 Partner Stats - 清新蓝白渐变 */
.partner-stats-card {
  background: linear-gradient(135deg, #EEF2FF 0%, #ECFEFF 100%);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-xl);
  padding: 36px;
  color: var(--color-text);
}

.partner-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.partner-stat {
  text-align: center;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
}
.partner-stat:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}
.partner-stat-num {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.partner-stat-label { font-size: 13px; color: var(--color-text-muted); }

.partner-tagline {
  text-align: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border-light);
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== Services ===== */
.services { padding: 100px 0; background: var(--color-bg); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag { margin-bottom: 12px; }
.section-header h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--color-text-muted); max-width: 560px; margin: 0 auto; }

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

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-color, var(--color-primary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(37, 99, 235, 0.12);
  border-color: var(--color-primary-light);
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon { width: 56px; height: 56px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 20px; }
.icon-blue { background: var(--color-primary-light); }
.icon-cyan { background: var(--color-accent-light); }
.icon-green { background: var(--color-accent-2-light); }
.icon-orange { background: #FEF3C7; }
.icon-pink { background: #FCE7F3; }
.icon-purple { background: #EDE9FE; }

.service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.service-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 16px; }
.service-card ul { list-style: none; }
.service-card li { font-size: 13px; color: var(--color-text-muted); padding: 6px 0; padding-left: 22px; position: relative; }
.service-card li::before { content: '✓'; position: absolute; left: 0; color: var(--color-accent-2); font-weight: 700; }

.card-1 { --card-color: var(--color-primary); }
.card-2 { --card-color: var(--color-accent); }
.card-3 { --card-color: var(--color-accent-2); }
.card-4 { --card-color: #EA580C; }
.card-5 { --card-color: var(--color-accent-3); }
.card-6 { --card-color: #7C3AED; }

/* ===== Why GEO ===== */
.why-geo { padding: 100px 0; background: #fff; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.why-content h2 { font-size: clamp(28px, 4vw, 36px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 20px; }
.why-content h2 .highlight { color: var(--color-primary); }
.why-content > p { font-size: 16px; color: var(--color-text-muted); margin-bottom: 32px; line-height: 1.75; }

.why-list { display: flex; flex-direction: column; gap: 16px; }
.why-item { display: flex; gap: 14px; align-items: flex-start; }
.why-item-icon {
  width: 32px; height: 32px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}
.why-item-text h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.why-item-text p { font-size: 13px; color: var(--color-text-muted); line-height: 1.65; }

/* Why Card - 清新白卡 */
.why-card-inner {
  background: linear-gradient(135deg, #EEF2FF 0%, #F0FDFA 100%);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
}
.why-card-emoji { font-size: 60px; margin-bottom: 16px; }
.why-card-title { font-size: 20px; font-weight: 800; margin-bottom: 12px; color: var(--color-primary); }
.why-card-desc { font-size: 14px; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 24px; }
.why-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.why-card-stat {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 16px;
}
.why-card-stat-num {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
}
.why-card-stat-label { font-size: 12px; color: var(--color-text-muted); }

/* ===== Process ===== */
.process { padding: 100px 0; background: var(--color-bg); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

/* 清新连接线 */
.process-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12.5%; right: 12.5%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-accent-2), var(--color-primary));
  border-radius: 100px;
  z-index: 0;
}

.process-step { text-align: center; position: relative; z-index: 1; }
.step-num {
  width: 88px; height: 88px;
  margin: 0 auto 20px;
  background: #fff;
  border: 2px solid var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  color: var(--color-primary);
  transition: all 0.3s var(--ease-out);
}
.process-step:hover .step-num {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  border-color: transparent;
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}
.process-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

/* ===== Pricing ===== */
.pricing { padding: 100px 0; background: #fff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }

.pricing-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  position: relative;
  transition: all 0.35s var(--ease-out);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.1);
  border-color: var(--color-primary-light);
}

.pricing-card.featured {
  border: 2px solid var(--color-primary);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.15);
}

.pricing-card.featured::before {
  content: '最受欢迎';
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  padding: 6px 22px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.pricing-tier { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: 8px; }
.pricing-name { font-size: 24px; font-weight: 800; margin-bottom: 16px; }
.pricing-price { margin-bottom: 24px; }
.pricing-amount { font-family: var(--font-heading); font-size: 42px; font-weight: 800; color: var(--color-primary); }
.pricing-period { font-size: 14px; color: var(--color-text-muted); }
.pricing-desc { font-size: 13px; color: var(--color-text-muted); margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--color-border-light); }
.pricing-features { list-style: none; margin-bottom: 28px; }
.pricing-features li { font-size: 14px; color: var(--color-text); padding: 10px 0; padding-left: 28px; position: relative; }
.pricing-features li::before { content: '✓'; position: absolute; left: 0; color: var(--color-accent-2); font-weight: 700; }
.pricing-card .btn { width: 100%; }

/* ===== Testimonials ===== */
.testimonials { padding: 100px 0; background: var(--color-bg); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.testimonial-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s var(--ease-out);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.1);
  border-color: var(--color-primary-light);
}

.testimonial-quote {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 24px;
  position: relative;
  padding-left: 20px;
}
.testimonial-quote::before {
  content: '"';
  position: absolute;
  left: 0; top: -6px;
  font-size: 36px;
  color: var(--color-primary);
  font-weight: 800;
  opacity: 0.5;
}

.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
}
.author-info h4 { font-size: 14px; font-weight: 700; }
.author-info p { font-size: 12px; color: var(--color-text-muted); }

/* ===== FAQ ===== */
.faq { background: var(--color-bg); padding: 100px 0; }
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }

.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
}

.faq-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  border-radius: 4px 0 0 4px;
  transition: all 0.3s var(--ease-out);
}

.faq-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(37, 99, 235, 0.08);
  border-color: var(--color-primary-light);
}
.faq-item:hover::before { width: 5px; }

.faq-item:nth-child(6n+1)::before { background: var(--color-primary); }
.faq-item:nth-child(6n+2)::before { background: var(--color-accent); }
.faq-item:nth-child(6n+3)::before { background: var(--color-accent-2); }
.faq-item:nth-child(6n+4)::before { background: #EA580C; }
.faq-item:nth-child(6n+5)::before { background: var(--color-accent-3); }
.faq-item:nth-child(6n+6)::before { background: var(--color-accent); }

.faq-item-header { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 14px; }

.faq-num {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-item:nth-child(6n+1) .faq-num { background: var(--color-primary); }
.faq-item:nth-child(6n+2) .faq-num { background: var(--color-accent); }
.faq-item:nth-child(6n+3) .faq-num { background: var(--color-accent-2); }
.faq-item:nth-child(6n+4) .faq-num { background: #EA580C; }
.faq-item:nth-child(6n+5) .faq-num { background: var(--color-accent-3); }
.faq-item:nth-child(6n+6) .faq-num { background: var(--color-accent); }

.faq-q { font-family: var(--font-heading); font-size: 15px; font-weight: 700; color: var(--color-text); line-height: 1.5; flex: 1; }
.faq-divider { width: 100%; height: 1px; background: var(--color-border-light); margin-bottom: 14px; }
.faq-a { font-size: 14px; color: var(--color-text-muted); line-height: 1.85; padding-left: 44px; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}

/* 清新光斑 */
.cta-section::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -60px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-inner h2 { font-size: clamp(28px, 4vw, 48px); font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; margin-bottom: 32px; flex-wrap: wrap; }

.cta-section .btn-accent {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.cta-section .btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.2);
  background: #fff;
}

.cta-section .btn-ghost {
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.cta-section .btn-ghost:hover {
  background: rgba(255,255,255,0.15);
}

.cta-features { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.cta-feature { font-size: 13px; color: rgba(255,255,255,0.9); display: flex; align-items: center; gap: 8px; }
.cta-feature .check { color: #fff; }

/* ===== Footer ===== */
footer {
  background: #fff;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 40px;
}

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; color: var(--color-text-muted); margin-top: 12px; line-height: 1.7; }
.footer-col h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; color: var(--color-text-muted); }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links li a, .footer-links li { font-size: 14px; color: var(--color-text-muted); transition: color 0.2s; }
.footer-links li a:hover { color: var(--color-primary); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copyright { font-size: 13px; color: var(--color-text-muted); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid, .partner-card, .why-grid, .faq-list { grid-template-columns: 1fr; }
  .hero-visual, .partner-visual { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid::before { display: none; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .why-card-grid { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .faq-a { padding-left: 0; }

  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hero-buttons .btn-accent { display: none; }
  .cta-buttons .btn-accent { display: none; }}