/* 江苏页：浅蓝对角渐变Hero + 顶部描边卡片 + 左右对比排版 */
:root { --js-primary: #1F6CDD; --js-accent: #FF8800; --js-text: #1E293B; --js-gray: #F0F8FF; }
body { color: var(--js-text); background: #fff; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; }

.js-header { height: 72px; display: flex; align-items: center; border-bottom: 1px solid rgba(31,108,221,0.1); background: #fff; position: sticky; top: 0; z-index: 100; }
.js-header .container { display: flex; justify-content: space-between; align-items: center; }
.js-brand { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; color: var(--js-primary); }
.js-brand-icon { width: 40px; height: 40px; background: linear-gradient(135deg, var(--js-primary) 0%, #408EF5 100%); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-size: 18px; }
.js-nav { display: flex; gap: 32px; }
.js-nav a { font-weight: 500; color: #64748B; padding: 8px 0; position: relative; }
.js-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--js-primary); transition: 0.3s; }
.js-nav a:hover { color: var(--js-primary); }
.js-nav a:hover::after { width: 100%; }
.js-btn { background: linear-gradient(135deg, #F5B84E 0%, #FF8800 100%); color: white; padding: 10px 24px; border-radius: 8px; font-weight: 500; transition: 0.3s; border: none; cursor: pointer; }
.js-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(255,136,0,0.3); }

.js-hero { padding: 80px 0; background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 50%, #BFDBFE 100%); position: relative; overflow: hidden; }
.js-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(31,108,221,0.3), transparent); }
.js-hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.js-hero-title { font-size: 40px; color: #0C50C7; margin-bottom: 24px; line-height: 1.4; }
.js-hero-desc { font-size: 18px; color: #334155; margin-bottom: 32px; }
.js-stats { display: flex; gap: 24px; margin-bottom: 40px; }
.js-stat-item { background: #fff; padding: 12px 20px; border-radius: 8px; display: flex; align-items: center; gap: 12px; box-shadow: 0 4px 12px rgba(31,108,221,0.08); font-weight: 500; color: var(--js-primary); }
.js-features { display: flex; flex-direction: column; gap: 16px; }
.js-features li { display: flex; align-items: center; gap: 12px; color: #1E293B; font-size: 16px; }
.js-features li::before { content: '✓'; display: inline-flex; width: 24px; height: 24px; border-radius: 50%; background: #16A34A; color: #fff; align-items: center; justify-content: center; font-size: 14px; }

.js-form { background: #fff; padding: 40px; border-radius: 16px; box-shadow: 0 8px 40px rgba(31,108,221,0.12); }
.js-form h3 { font-size: 24px; color: #1E293B; margin-bottom: 8px; }
.js-form p { color: #64748B; margin-bottom: 32px; font-size: 14px; }
.js-input-group { margin-bottom: 20px; }
.js-input { width: 100%; padding: 14px 16px; border: 1px solid #E2E8F0; border-radius: 8px; font-size: 15px; transition: 0.3s; background: #F8FAFC; }
.js-input:focus { border-color: var(--js-primary); background: #fff; outline: none; box-shadow: 0 0 0 3px rgba(31,108,221,0.1); }
.js-form button { width: 100%; font-size: 16px; padding: 14px; margin-top: 10px; }

.js-section { padding: 80px 0; }
.js-bg-alt { background: var(--js-gray); }
.js-title { font-size: 32px; color: #1E293B; margin-bottom: 16px; font-weight: 700; }
.js-subtitle { font-size: 16px; color: #64748B; margin-bottom: 48px; }

.js-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.js-compare-card { background: #fff; border-radius: 16px; padding: 40px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); }
.js-compare-card h4 { font-size: 20px; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid #E2E8F0; }
.js-compare-card:first-child h4 { color: #DC2626; }
.js-compare-card:last-child h4 { color: #16A34A; }
.js-compare-list li { margin-bottom: 16px; display: flex; align-items: flex-start; gap: 12px; color: #475569; }
.js-compare-list li::before { content: '•'; color: #CBD5E1; font-size: 20px; line-height: 1; }

.js-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.js-card { background: #fff; padding: 24px; border-radius: 12px; border: 1px solid #E2E8F0; border-top: 3px solid var(--js-primary); transition: 0.3s; }
.js-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(31,108,221,0.1); }
.js-tag { display: inline-block; padding: 4px 10px; background: #EFF6FF; color: var(--js-primary); border-radius: 4px; font-size: 13px; font-weight: 500; margin-bottom: 16px; }
.js-card h4 { font-size: 18px; color: #1E293B; margin-bottom: 12px; line-height: 1.4; }
.js-card p { font-size: 14px; color: #64748B; line-height: 1.6; }

.js-banner { margin-top: 60px; background: linear-gradient(90deg, #1F6CDD 0%, #0C50C7 100%); border-radius: 16px; padding: 40px; display: flex; align-items: center; justify-content: space-between; color: #fff; box-shadow: 0 10px 30px rgba(31,108,221,0.2); }
.js-banner h3 { font-size: 24px; margin-bottom: 8px; }
.js-banner p { color: #BFDBFE; font-size: 15px; max-width: 600px; }
.js-banner-btn { background: #fff; color: var(--js-primary); padding: 12px 32px; border-radius: 8px; font-weight: 600; transition: 0.3s; display: inline-block; }
.js-banner-btn:hover { background: var(--js-accent); color: #fff; }

.js-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.js-solution-card { background: #fff; padding: 32px; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.04); position: relative; overflow: hidden; }
.js-solution-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--js-primary); }
.js-solution-card h4 { font-size: 20px; color: #1E293B; margin-bottom: 16px; }
.js-solution-card p { font-size: 15px; color: #64748B; }

.js-footer { background: #0F172A; color: #94A3B8; padding: 32px 0; text-align: center; font-size: 14px; border-top: 1px solid #1E293B; }

@media (max-width: 1024px) {
  .js-hero-inner, .js-compare { grid-template-columns: 1fr; }
  .js-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .js-banner { flex-direction: column; gap: 24px; text-align: center; }
  .js-nav { display: none; }
}
@media (max-width: 768px) {
  .js-grid-4, .js-grid-3 { grid-template-columns: 1fr; }
  .js-stats { flex-direction: column; }
  .js-hero { padding: 40px 0; }
  .js-form { padding: 24px; }
}