* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: #1a1f2e; background: #fff; line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #eef0f4;
}
.nav {
  max-width: 1200px; margin: 0 auto; padding: 0 32px;
  height: 72px; display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg,#2563eb,#1d4ed8);
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-size:16px; font-weight:700;
}
nav { display: flex; gap: 30px; }
nav a { font-size: 15px; color: #4b5563; transition: color .25s; padding: 4px 0; border-bottom: 2px solid transparent; }
nav a:hover { color: #2563eb; }
nav a.active { color: #2563eb; border-bottom-color: #2563eb; }
.nav-cta {
  background:#2563eb; color:#fff; padding:9px 22px; border-radius:8px;
  font-size:14px; font-weight:500; transition: background .25s;
}
.nav-cta:hover { background:#1d4ed8; }

.page-banner {
  background: linear-gradient(135deg,#0f172a,#1e3a8a);
  color:#fff; padding: 72px 32px 64px; text-align: center;
}
.page-banner h1 { font-size: 38px; letter-spacing:-.5px; margin-bottom: 14px; }
.page-banner p { font-size: 16px; color:#cbd5e1; max-width: 600px; margin: 0 auto; }

section { padding: 88px 32px; }
.container { max-width: 1200px; margin: 0 auto; }
.sec-head { max-width: 660px; margin-bottom: 52px; }
.sec-head.center { margin-left:auto; margin-right:auto; text-align:center; }
.sec-tag { font-size:13px; color:#2563eb; letter-spacing:2px; font-weight:600; margin-bottom:14px; }
.sec-head h2 { font-size: 34px; line-height:1.3; letter-spacing:-.5px; color:#0f172a; margin-bottom:16px; }
.sec-head p { font-size:16px; color:#5b6472; }

.btn-primary {
  display:inline-block; background:#2563eb; color:#fff; padding:13px 30px;
  border-radius:8px; font-size:15px; font-weight:500; transition: background .25s, transform .2s;
  box-shadow: 0 6px 18px rgba(37,99,235,.22); border:none; cursor:pointer; font-family:inherit;
}
.btn-primary:hover { background:#1d4ed8; transform: translateY(-1px); }
.btn-secondary {
  display:inline-block; border:1px solid #d5dae2; color:#374151; padding:13px 30px;
  border-radius:8px; font-size:15px; font-weight:500; transition: border-color .25s, color .25s;
}
.btn-secondary:hover { border-color:#2563eb; color:#2563eb; }

.hero {
  max-width: 1200px; margin: 0 auto; padding: 88px 32px 96px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color:#2563eb; background:#eff6ff;
  padding: 6px 14px; border-radius: 20px; margin-bottom: 22px;
}
.hero-badge::before { content:""; width:6px; height:6px; border-radius:50%; background:#2563eb; }
.hero h1 { font-size: 44px; line-height: 1.25; letter-spacing: -1px; color:#0f172a; margin-bottom: 22px; }
.hero h1 em { font-style: normal; color:#2563eb; }
.hero-sub { font-size: 17px; color:#5b6472; max-width: 540px; margin-bottom: 34px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-panel {
  background: #f8fafc; border:1px solid #eef0f4; border-radius: 20px;
  padding: 30px; display: grid; gap: 18px;
}
.panel-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel-card { background:#fff; border-radius:12px; padding:20px 22px; border:1px solid #eef0f4; }
.panel-card .num { font-size:30px; font-weight:700; color:#2563eb; }
.panel-card .label { font-size:13px; color:#6b7280; margin-top:4px; }
.panel-main {
  background: linear-gradient(135deg,#2563eb,#1d4ed8); border-radius:12px;
  padding:24px 22px; color:#fff;
}
.panel-main .num { font-size:34px; font-weight:700; }
.panel-main .label { font-size:13px; opacity:.85; margin-top:4px; }
.panel-main .bar { height:6px; background:rgba(255,255,255,.25); border-radius:3px; margin-top:16px; overflow:hidden; }
.panel-main .bar span { display:block; height:100%; width:86%; background:#fff; border-radius:3px; }

.grid-2 { display:grid; grid-template-columns: repeat(2,1fr); gap:20px; }
.grid-3 { display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
.grid-4 { display:grid; grid-template-columns: repeat(4,1fr); gap:24px; }

.card {
  border:1px solid #eef0f4; border-radius:16px; padding:34px 32px; background:#fff;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.card:hover { box-shadow: 0 20px 48px rgba(15,23,42,.07); transform: translateY(-4px); border-color:#dbeafe; }
.card-icon {
  width:52px; height:52px; border-radius:12px; background:#eff6ff; color:#2563eb;
  display:flex; align-items:center; justify-content:center; font-size:24px; margin-bottom:22px;
}
.card h3 { font-size:19px; color:#0f172a; margin-bottom:10px; }
.card p { font-size:14.5px; color:#5b6472; margin-bottom:16px; }
.tags { display:flex; flex-wrap:wrap; gap:8px; }
.tags span { font-size:12px; color:#4b5563; background:#f3f4f6; padding:4px 10px; border-radius:6px; }

.case-card { border-radius:16px; overflow:hidden; border:1px solid #eef0f4; background:#fff; transition: box-shadow .3s, transform .3s; }
.case-card:hover { box-shadow:0 20px 48px rgba(15,23,42,.08); transform: translateY(-4px); }
.case-cover {
  height:170px; display:flex; align-items:center; justify-content:center; font-size:44px;
  background: linear-gradient(135deg,#eff6ff,#dbeafe);
}
.case-body { padding:24px 26px; }
.case-cat { font-size:12px; color:#2563eb; letter-spacing:1px; margin-bottom:8px; }
.case-body h3 { font-size:17px; color:#0f172a; margin-bottom:10px; }
.case-body p { font-size:14px; color:#5b6472; margin-bottom:14px; }
.case-result { font-size:13px; color:#059669; font-weight:600; }

.stats { background:#0f172a; color:#fff; }
.stats-grid { display:grid; grid-template-columns: repeat(4,1fr); gap:32px; text-align:center; }
.stat .num { font-size:44px; font-weight:700; color:#60a5fa; }
.stat .label { font-size:14px; color:#94a3b8; margin-top:6px; }

.about-grid { display:grid; grid-template-columns: 1fr 1fr; gap:72px; align-items:center; }
.about-text h2 { font-size:34px; color:#0f172a; margin-bottom:20px; }
.about-text p { font-size:15.5px; color:#5b6472; margin-bottom:16px; }
.about-list { margin-top:26px; display:grid; gap:14px; }
.about-list li { list-style:none; display:flex; gap:12px; font-size:15px; color:#374151; }
.about-list li::before { content:"✓"; color:#2563eb; font-weight:700; }
.about-visual {
  background: linear-gradient(135deg,#f1f5f9,#e2e8f0); border-radius:20px;
  aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center;
  font-size:60px; color:#94a3b8; border:1px solid #eef0f4;
}

.process { background:#f8fafc; }
.step { padding:28px 24px; background:#fff; border-radius:14px; border:1px solid #eef0f4; }
.step-num { font-size:13px; color:#2563eb; font-weight:700; letter-spacing:1px; margin-bottom:12px; }
.step h4 { font-size:16px; color:#0f172a; margin-bottom:8px; }
.step p { font-size:13.5px; color:#5b6472; }

.news-item {
  display:flex; gap:24px; padding:26px 0; border-bottom:1px solid #eef0f4; align-items:flex-start;
}
.news-date {
  flex-shrink:0; width:80px; text-align:center; background:#eff6ff; border-radius:10px; padding:12px 8px;
}
.news-date .d { font-size:22px; font-weight:700; color:#2563eb; line-height:1.2; }
.news-date .m { font-size:12px; color:#64748b; margin-top:2px; }
.news-body h3 { font-size:17px; color:#0f172a; margin-bottom:8px; }
.news-body p { font-size:14px; color:#5b6472; }

.contact { background:#f8fafc; }
.contact-grid { display:grid; grid-template-columns: 1fr 1fr; gap:64px; align-items:start; }
.contact-text h2 { font-size:34px; color:#0f172a; margin-bottom:16px; }
.contact-text > p { font-size:16px; color:#5b6472; margin-bottom:30px; }
.contact-items { display:grid; gap:20px; }
.contact-item { display:flex; gap:14px; align-items:flex-start; }
.contact-icon {
  width:40px; height:40px; border-radius:10px; background:#eff6ff; color:#2563eb;
  display:flex; align-items:center; justify-content:center; font-size:18px; flex-shrink:0;
}
.contact-item .label { font-size:12px; color:#94a3b8; margin-bottom:2px; }
.contact-item .value { font-size:15.5px; color:#0f172a; font-weight:500; }
.contact-form { background:#fff; border:1px solid #eef0f4; border-radius:18px; padding:34px 32px; }
.contact-form h3 { font-size:20px; color:#0f172a; margin-bottom:20px; }
.field { margin-bottom:16px; }
.field label { display:block; font-size:13px; color:#4b5563; margin-bottom:6px; }
.field input, .field textarea {
  width:100%; padding:11px 14px; border:1px solid #e2e8f0; border-radius:8px;
  font-family:inherit; font-size:14px; color:#0f172a; outline:none; background:#fbfcfe;
}
.field textarea { resize:vertical; min-height:110px; }
.contact-form .btn-primary { width:100%; text-align:center; }

footer { background:#0f172a; color:#94a3b8; padding:64px 32px 32px; font-size:14px; }
.footer-inner {
  max-width:1200px; margin:0 auto; display:grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap:44px; padding-bottom:44px; border-bottom:1px solid #1e293b;
}
.footer-brand .logo { color:#fff; margin-bottom:16px; }
.footer-brand p { font-size:13.5px; line-height:1.8; color:#64748b; max-width:320px; }
.footer-col h4 { color:#fff; font-size:14px; margin-bottom:18px; font-weight:600; }
.footer-col a { display:block; font-size:13.5px; color:#94a3b8; margin-bottom:11px; transition: color .25s; }
.footer-col a:hover { color:#fff; }
.footer-bottom {
  max-width:1200px; margin:0 auto; padding-top:26px; display:flex;
  justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:13px; color:#64748b;
}

@media (max-width: 1024px) {
  .hero { grid-template-columns:1fr; gap:48px; padding:64px 24px 72px; }
  .hero h1 { font-size:36px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:repeat(2,1fr); gap:40px; }
  .about-grid, .contact-grid { grid-template-columns:1fr; gap:40px; }
  .footer-inner { grid-template-columns:1fr 1fr; }
  nav { display:none; }
}
@media (max-width: 600px) {
  section { padding:64px 20px; }
  .hero h1 { font-size:29px; }
  .sec-head h2 { font-size:26px; }
  .page-banner h1 { font-size:28px; }
  .stats-grid, .footer-inner { grid-template-columns:1fr; }
  .panel-row { grid-template-columns:1fr; }
  .news-item { flex-direction:column; gap:12px; }
}