:root {
  --primary: #ff6b3d;
  --primary-dark: #e04e21;
  --primary-light: #fff0e9;
  --accent: #2f3b52;
  --text: #2b2b2b;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-alt: #faf7f4;
  --border: #ececec;
  --shadow: 0 6px 20px rgba(43, 43, 43, .08);
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { line-height: 1.35; }
.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; max-width: 760px; margin: 0 auto 48px; }
.section-title { font-size: 32px; font-weight: 800; color: var(--accent); margin-bottom: 14px; }
.section-subtitle { font-size: 16px; color: var(--text-light); }
.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; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
  border: 1px solid var(--border);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(43, 43, 43, .12); }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--primary-light); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800; margin-bottom: 18px;
}
.card-title { font-size: 19px; font-weight: 700; color: var(--accent); margin-bottom: 10px; }
.card-text { font-size: 15px; color: var(--text-light); }
.card-body { margin-top: 6px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 30px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: 2px solid transparent; cursor: pointer;
  transition: background .25s, color .25s, border-color .25s, transform .25s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline { border-color: var(--primary); color: var(--primary-dark); background: transparent; }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.nav.scrolled { box-shadow: 0 4px 18px rgba(43, 43, 43, .1); border-color: var(--border); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-size: 21px; font-weight: 900; color: var(--accent); letter-spacing: .5px; }
.nav-logo span { color: var(--primary); }
.nav-list { display: flex; align-items: center; gap: 30px; }
.nav-link { font-size: 15px; color: var(--text); font-weight: 500; position: relative; transition: color .25s; }
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--primary); transition: width .25s;
}
.nav-link:hover { color: var(--primary-dark); }
.nav-link:hover::after { width: 100%; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  font-size: 24px; color: var(--accent); padding: 4px 8px;
}
.nav-cta { display: flex; align-items: center; gap: 12px; }
.hero {
  padding: 150px 0 90px;
  background: linear-gradient(160deg, #fff7f2 0%, #ffffff 55%, #fdf5ef 100%);
  position: relative; overflow: hidden;
}
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; text-align: center; }
.hero-title {
  font-size: 50px; font-weight: 900; color: var(--accent);
  letter-spacing: -.5px; margin-bottom: 20px;
}
.hero-title em { font-style: normal; color: var(--primary); }
.hero-subtitle {
  font-size: 18px; color: var(--text-light); max-width: 680px;
  margin: 0 auto 34px;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; max-width: 900px; margin: 0 auto;
}
.hero-stat {
  background: #fff; border-radius: var(--radius); padding: 22px 14px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
}
.hero-stat-num { font-size: 28px; font-weight: 900; color: var(--primary-dark); }
.hero-stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }
.timeline { position: relative; padding-left: 28px; margin-top: 10px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px;
  width: 2px; background: var(--border);
}
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-dot {
  position: absolute; left: -28px; top: 6px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--primary); border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--primary-light);
}
.timeline-content { padding-left: 6px; }
.timeline-date { font-size: 13px; color: var(--primary-dark); font-weight: 700; }
.timeline-title { font-size: 17px; font-weight: 700; color: var(--accent); margin: 4px 0 6px; }
.timeline-text { font-size: 14px; 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, box-shadow .3s;
}
.news-item:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(43,43,43,.12); }
.news-title { font-size: 18px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.news-date { font-size: 13px; color: var(--text-light); }
.news-category {
  font-size: 12px; color: var(--primary-dark); background: var(--primary-light);
  padding: 2px 10px; border-radius: 999px; font-weight: 600;
}
.news-summary { font-size: 15px; color: var(--text-light); margin-bottom: 14px; }
.news-body { font-size: 15px; color: var(--text-light); }
.news-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag {
  font-size: 12px; color: var(--text-light); border: 1px solid var(--border);
  padding: 3px 12px; border-radius: 999px;
}
.faq-list { display: grid; gap: 16px; }
.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; color: var(--accent); 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; color: var(--accent); margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px 16px; font-size: 15px; font-family: inherit;
  color: var(--text); background: #fff;
  border: 1px solid var(--border); border-radius: 10px; outline: none;
  transition: border-color .25s, box-shadow .25s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light);
}
.form-textarea { min-height: 130px; resize: vertical; }
.form-submit {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 36px; border-radius: 999px; border: none; cursor: pointer;
  background: var(--primary); color: #fff; font-size: 15px; font-weight: 700;
  transition: background .25s, transform .25s;
}
.form-submit:hover { background: var(--primary-dark); transform: translateY(-2px); }
.form-tip { font-size: 13px; color: var(--text-light); margin-top: 12px; }
.stat-item { text-align: center; padding: 20px 12px; }
.stat-number { font-size: 30px; font-weight: 900; color: var(--primary-dark); }
.stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }
.progress { background: var(--border); border-radius: 999px; height: 10px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 999px; }
.bar-chart { display: flex; align-items: flex-end; gap: 18px; height: 200px; padding: 0 6px; }
.bar-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; }
.bar-fill { width: 100%; background: linear-gradient(180deg, var(--primary), var(--primary-dark)); border-radius: 8px 8px 0 0; }
.bar-label { font-size: 12px; color: var(--text-light); margin-top: 8px; }
.badge {
  display: inline-block; font-size: 12px; font-weight: 700;
  color: var(--primary-dark); background: var(--primary-light);
  padding: 4px 12px; border-radius: 999px;
}
.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: 26px; 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 14px 32px rgba(43,43,43,.12);
}
.partner-logo {
  display: flex; align-items: center; justify-content: center;
  height: 80px; border: 1px dashed var(--border); border-radius: 10px;
  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;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.step-number {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.footer { background: var(--accent); color: #cdd4e0; padding: 60px 0 0; }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px 40px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px;
}
.footer-col { font-size: 14px; }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-link { display: block; color: #cdd4e0; margin-bottom: 10px; transition: color .25s; }
.footer-link:hover { color: var(--primary); }
.footer-info { font-size: 14px; color: #cdd4e0; line-height: 1.9; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  max-width: 1200px; margin: 0 auto; padding: 20px;
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between;
  font-size: 13px; color: #9aa4b5;
}
@media (max-width: 1200px) {
  .hero-title { font-size: 44px; }
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 992px) {
  .section { padding: 64px 0; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .nav-list { display: none; }
  .nav-toggle { display: block; }
  .nav-list.active {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 16px 20px;
    box-shadow: 0 12px 24px rgba(43,43,43,.12);
  }
  .nav-list.active .nav-link { padding: 10px 0; display: block; }
}
@media (max-width: 768px) {
  .hero { padding: 120px 0 64px; }
  .hero-title { font-size: 34px; }
  .hero-subtitle { font-size: 16px; }
  .section-title { font-size: 26px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section-header { margin-bottom: 34px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 28px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .hero-stats { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .card { padding: 22px; }
}