:root {
  --primary: #e8452c;
  --primary-dark: #b8301c;
  --primary-light: #fdecea;
  --accent: #f5a623;
  --text: #1f2328;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --border: #e5e7eb;
  --shadow: 0 2px 12px rgba(31, 35, 40, 0.08);
  --radius: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-title { font-size: 32px; font-weight: 700; letter-spacing: 1px; margin-bottom: 14px; }
.section-subtitle { font-size: 16px; color: var(--text-light); max-width: 720px; margin: 0 auto; }
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.flex { display: flex; align-items: center; gap: 16px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(31, 35, 40, 0.12); }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; margin-bottom: 16px;
}
.card-title { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.card-text { font-size: 15px; color: var(--text-light); }
.card-body { padding-top: 4px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 8px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: 2px solid transparent; transition: all .25s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.nav.scrolled { box-shadow: 0 2px 16px rgba(31, 35, 40, 0.1); border-color: var(--border); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  height: 68px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-size: 20px; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.nav-logo span { color: var(--text); }
.nav-list { display: flex; align-items: center; gap: 28px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--text); transition: color .2s; }
.nav-link:hover { color: var(--primary); }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; font-size: 24px; color: var(--text);
  align-items: center; justify-content: center;
}
.nav-cta { display: flex; align-items: center; gap: 12px; }
.hero {
  padding: 148px 0 80px;
  background: linear-gradient(160deg, #fff6f4 0%, #ffffff 55%, #f6f7f9 100%);
}
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.hero-title { font-size: 46px; font-weight: 800; line-height: 1.25; letter-spacing: 1px; margin-bottom: 20px; }
.hero-title em { color: var(--primary); font-style: normal; }
.hero-subtitle {
  font-size: 18px; color: var(--text-light); max-width: 720px; margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hero-stat {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; text-align: center; box-shadow: var(--shadow);
}
.hero-stat-num { font-size: 28px; font-weight: 800; color: var(--primary); }
.hero-stat-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }
.timeline { position: relative; padding-left: 8px; }
.timeline-item { position: relative; padding: 0 0 28px 32px; border-left: 2px solid var(--border); }
.timeline-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -9px; top: 4px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--primary); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--primary-light);
}
.timeline-content { padding-top: 0; }
.timeline-date { font-size: 13px; color: var(--primary); font-weight: 600; }
.timeline-title { font-size: 17px; font-weight: 700; margin: 4px 0 6px; }
.timeline-text { font-size: 15px; color: var(--text-light); }
.news-list { display: grid; gap: 20px; }
.news-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); transition: transform .3s;
}
.news-item:hover { transform: translateY(-3px); }
.news-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-date { font-size: 13px; color: var(--text-light); }
.news-category {
  font-size: 12px; padding: 2px 10px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark); font-weight: 600;
}
.news-summary { font-size: 15px; color: var(--text-light); }
.news-body { font-size: 15px; color: var(--text-light); margin-top: 10px; }
.news-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag {
  font-size: 12px; padding: 3px 12px; border-radius: 999px;
  background: var(--bg-alt); color: var(--text-light); border: 1px solid var(--border);
}
.faq-list { display: grid; gap: 16px; max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 26px; box-shadow: var(--shadow);
}
.faq-question { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.faq-answer { font-size: 15px; color: var(--text-light); }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px 14px; font-size: 15px;
  border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text); font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light);
}
.form-textarea { min-height: 130px; resize: vertical; }
.form-submit { width: 100%; }
.form-tip { font-size: 13px; color: var(--text-light); margin-top: 10px; }
.stat-item { text-align: center; padding: 16px; }
.stat-number { font-size: 30px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 14px; color: var(--text-light); margin-top: 6px; }
.progress { height: 8px; background: var(--bg-alt); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 999px; }
.bar-chart { display: flex; align-items: flex-end; gap: 18px; height: 200px; padding: 16px 0; }
.bar-item { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; gap: 8px; }
.bar-fill { width: 100%; max-width: 46px; background: linear-gradient(180deg, var(--primary), var(--primary-dark)); border-radius: 6px 6px 0 0; }
.bar-label { font-size: 13px; color: var(--text-light); }
.badge {
  display: inline-block; font-size: 12px; font-weight: 600;
  padding: 3px 12px; border-radius: 999px;
  background: var(--accent); color: #fff;
}
.customer-card, .case-card, .honor-card, .review-card, .benefit-card, .region-card, .support-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s;
}
.customer-card:hover, .case-card:hover, .honor-card:hover,
.review-card:hover, .benefit-card:hover, .region-card:hover, .support-card:hover {
  transform: translateY(-4px); box-shadow: 0 8px 24px rgba(31, 35, 40, 0.12);
}
.partner-logo {
  display: flex; align-items: center; justify-content: center;
  height: 72px; border: 1px dashed var(--border); border-radius: var(--radius);
  color: var(--text-light); font-size: 14px; background: #fff;
}
.step-list { display: grid; gap: 20px; }
.step-item { display: flex; gap: 18px; align-items: flex-start; }
.step-number {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.footer { background: #1f2328; color: #c9cdd4; padding: 60px 0 0; }
.footer-inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px; max-width: 1200px; margin: 0 auto; padding: 0 20px 40px;
}
.footer-col { font-size: 14px; }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-link { display: block; margin-bottom: 10px; color: #c9cdd4; transition: color .2s; }
.footer-link:hover { color: var(--primary); }
.footer-info { font-size: 14px; line-height: 1.9; color: #c9cdd4; }
.footer-bottom {
  border-top: 1px solid #2d3238; text-align: center;
  padding: 20px; font-size: 13px; color: #8b9099;
}
@media (max-width: 1199px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 38px; }
}
@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-toggle { display: flex; }
  .nav-list.open {
    display: flex; flex-direction: column; position: absolute;
    top: 68px; left: 0; right: 0; background: #fff;
    padding: 16px 20px; gap: 16px; box-shadow: var(--shadow);
    border-top: 1px solid var(--border);
  }
  .nav-cta .btn { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .hero { padding: 118px 0 56px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .bar-chart { gap: 10px; }
}
@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-title { font-size: 26px; }
}