*,::before,::after { margin:0; padding:0; box-sizing:border-box; }
:root {
  --primary: #1a237e;
  --primary-light: #3949ab;
  --accent: #ff6f00;
  --green: #2e7d32;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #333;
  --text-light: #666;
  --border: #e0e0e0;
}
body { font-family: -apple-system,"PingFang SC","Microsoft YaHei",sans-serif; background:var(--bg); color:var(--text); line-height:1.7; }
a { text-decoration:none; color:inherit; }
ul { list-style:none; }

/* ========== NAV ========== */
.nav {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:rgba(255,255,255,0.97); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow:0 2px 16px rgba(0,0,0,0.08); }
.nav-inner { max-width:1200px; margin:0 auto; padding:0 24px; height:64px; display:flex; align-items:center; justify-content:space-between; }
.nav-logo { display:flex; align-items:center; gap:10px; text-decoration:none; }
.nav-logo-img { height:32px; width:auto; display:block; }
.nav-logo-text { font-size:18px; font-weight:700; color:var(--primary); }
.nav-toggle { display:none; background:none; border:none; font-size:24px; cursor:pointer; color:var(--text); padding:4px; }
.nav-links { display:flex; gap:32px; }
.nav-links a { font-size:14px; color:var(--text-light); transition:color 0.2s; position:relative; padding:4px 0; }
.nav-links a:hover { color:var(--primary); }
.nav-links a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:var(--primary); transition:width 0.2s; }
.nav-links a:hover::after { width:100%; }
.nav-cta { background:var(--primary); color:#fff; padding:8px 20px; border-radius:6px; font-size:14px; font-weight:600; transition:background 0.2s; }
.nav-cta:hover { background:var(--primary-light); }

/* ========== HERO ========== */
.hero {
  min-height:100dvh; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg,#0d1b4a 0%,#1a237e 50%,#283593 100%);
  color:#fff; text-align:center; padding:120px 24px 80px; position:relative; overflow:hidden;
}
.hero::before {
  content:''; position:absolute; inset:0;
  background:radial-gradient(circle at 20% 50%,rgba(255,255,255,0.06) 0%,transparent 50%),
             radial-gradient(circle at 80% 80%,rgba(255,111,0,0.08) 0%,transparent 40%);
  pointer-events:none;
}
.hero-inner { position:relative; z-index:1; max-width:800px; }
.hero h1 { font-size:clamp(32px,5vw,52px); font-weight:800; letter-spacing:2px; line-height:1.3; }
.hero h1 .highlight { color:var(--accent); }
.hero p { font-size:clamp(16px,2.5vw,20px); opacity:0.85; margin-top:20px; font-weight:300; line-height:1.8; }
.hero-btns { margin-top:40px; display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius:8px; font-size:16px; font-weight:600; transition:all 0.2s; cursor:pointer; border:none; }
.btn-primary { background:#fff; color:var(--primary); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(255,255,255,0.2); }
.btn-outline { background:transparent; color:#fff; border:2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { border-color:#fff; background:rgba(255,255,255,0.1); }

/* ========== SECTION ========== */
.section { padding:80px 24px; }
.section-inner { max-width:1100px; margin:0 auto; }
.section-header { text-align:center; margin-bottom:56px; }
.section-header h2 { font-size:clamp(24px,4vw,34px); font-weight:700; color:var(--primary); }
.section-header p { color:var(--text-light); margin-top:12px; font-size:16px; }
.bg-white { background:#fff; }
.bg-card { background:var(--card); }

/* ========== ABOUT ========== */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.about-text h3 { font-size:22px; color:var(--primary); margin-bottom:16px; }
.about-text p { color:var(--text-light); font-size:15px; line-height:1.9; }
.about-text .tag-list { display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.about-text .tag { background:var(--bg); padding:6px 16px; border-radius:20px; font-size:13px; color:var(--primary-light); font-weight:600; }
.about-stats { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.about-stat { background:var(--bg); border-radius:12px; padding:28px; text-align:center; }
.about-stat .num { font-size:36px; font-weight:800; color:var(--primary); }
.about-stat .label { font-size:13px; color:var(--text-light); margin-top:4px; }

/* ========== SERVICES ========== */
.services-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:24px; }
.service-card {
  background:var(--card); border-radius:12px; padding:32px;
  box-shadow:0 2px 12px rgba(0,0,0,0.06); border-top:4px solid var(--primary);
  transition:transform 0.2s,box-shadow 0.2s;
}
.service-card:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(0,0,0,0.1); }
.service-card .icon { font-size:36px; margin-bottom:16px; display:block; }
.service-card h3 { font-size:18px; color:var(--primary); margin-bottom:12px; }
.service-card p { font-size:14px; color:var(--text-light); line-height:1.8; }
.service-card .features { margin-top:16px; }
.service-card .features li { font-size:13px; color:var(--text-light); padding:4px 0; padding-left:20px; position:relative; }
.service-card .features li::before { content:'✓'; position:absolute; left:0; color:var(--green); font-weight:700; }

/* ========== OCR HIGHLIGHT ========== */
.ocr-showcase { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.ocr-visual { position:relative; }
.ocr-visual .phone-frame {
  background:#1a1a2e; border-radius:24px; padding:12px; max-width:320px; margin:0 auto;
  box-shadow:0 20px 60px rgba(0,0,0,0.3);
}
.ocr-visual .phone-screen { background:#0d1b4a; border-radius:16px; padding:20px; min-height:500px; }
.ocr-visual .chat-msg { background:rgba(255,255,255,0.1); border-radius:12px; padding:12px 16px; margin-bottom:12px; font-size:13px; color:rgba(255,255,255,0.9); }
.ocr-visual .chat-msg.bot { background:var(--primary-light); }
.ocr-visual .result-card { background:rgba(46,125,50,0.2); border:1px solid rgba(46,125,50,0.4); border-radius:8px; padding:12px; margin-top:12px; font-size:12px; color:#a5d6a7; }
.ocr-text { font-size:14px; color:var(--text-light); line-height:2; }
.ocr-text .arrow { color:var(--accent); font-weight:700; font-size:18px; }
.ocr-stats { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:32px; }
.ocr-stat { text-align:center; padding:16px; background:var(--bg); border-radius:10px; }
.ocr-stat .num { font-size:28px; font-weight:800; color:var(--primary); }
.ocr-stat .label { font-size:12px; color:var(--text-light); margin-top:2px; }

/* ========== COMPARE ========== */
.compare-grid { display:grid; grid-template-columns:1fr 1fr; gap:32px; }
.compare-card { border-radius:12px; overflow:hidden; box-shadow:0 2px 16px rgba(0,0,0,0.08); }
.compare-card .head { padding:14px 20px; font-weight:700; font-size:15px; color:#fff; }
.compare-card.before .head { background:var(--red); }
.compare-card.after .head { background:var(--green); }
.compare-card .body { background:var(--card); padding:24px; }
.compare-item { display:flex; justify-content:space-between; align-items:center; padding:10px 0; border-bottom:1px solid #f0f0f0; font-size:14px; }
.compare-item:last-child { border-bottom:none; }
.compare-item .time { font-weight:700; color:var(--primary); }

/* ========== WORKFLOW ========== */
.workflow { display:flex; align-items:center; justify-content:center; gap:12px; flex-wrap:wrap; margin:40px 0; }
.workflow-step {
  background:var(--card); border-radius:12px; padding:24px 20px; text-align:center;
  box-shadow:0 2px 12px rgba(0,0,0,0.06); min-width:140px; flex:1; max-width:200px;
}
.workflow-step .step-num {
  width:36px; height:36px; border-radius:50%; background:var(--primary); color:#fff;
  display:inline-flex; align-items:center; justify-content:center; font-size:14px; font-weight:700; margin-bottom:10px;
}
.workflow-step h4 { font-size:14px; color:var(--primary); }
.workflow-step p { font-size:12px; color:var(--text-light); margin-top:4px; }
.workflow-arrow { font-size:20px; color:var(--primary-light); font-weight:700; }

/* ========== CASES ========== */
.cases-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:20px; }
.case-card { background:var(--bg); border-radius:10px; padding:24px; text-align:center; }
.case-card .icon { font-size:32px; margin-bottom:8px; }
.case-card h4 { font-size:14px; color:var(--text); }

/* ========== PRICING ========== */
.pricing-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:24px; }
.pricing-card {
  background:var(--card); border-radius:12px; padding:36px 28px;
  box-shadow:0 2px 16px rgba(0,0,0,0.08); text-align:center; position:relative; transition:transform 0.2s;
}
.pricing-card:hover { transform:translateY(-4px); }
.pricing-card.featured { border:2px solid var(--accent); }
.pricing-card.featured::before {
  content:'推荐'; position:absolute; top:-13px; left:50%; transform:translateX(-50%);
  background:var(--accent); color:#fff; padding:4px 20px; border-radius:12px; font-size:12px; font-weight:700;
}
.pricing-card h3 { font-size:18px; color:var(--text); }
.pricing-card .price { font-size:42px; font-weight:800; color:var(--primary); margin:16px 0 4px; }
.pricing-card .price .unit { font-size:14px; color:var(--text-light); font-weight:400; }
.pricing-card .desc { font-size:13px; color:var(--text-light); margin-bottom:20px; }
.pricing-card ul { text-align:left; }
.pricing-card ul li { padding:8px 0; font-size:14px; color:var(--text-light); padding-left:24px; position:relative; }
.pricing-card ul li::before { content:'✓'; position:absolute; left:0; color:var(--green); font-weight:700; }
.pricing-card .btn { margin-top:24px; width:100%; justify-content:center; }

/* ========== CTA ========== */
.cta {
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; text-align:center; padding:72px 24px; border-radius:16px; margin:48px auto; max-width:1100px;
}
.cta h2 { font-size:clamp(22px,3.5vw,30px); font-weight:700; margin-bottom:12px; }
.cta p { font-size:16px; opacity:0.85; margin-bottom:28px; }

/* ========== FOOTER ========== */
.footer { background:#111827; color:rgba(255,255,255,0.7); padding:48px 24px 24px; }
.footer-inner { max-width:1100px; margin:0 auto; }
.footer-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:40px; }
.footer h4 { color:#fff; font-size:15px; margin-bottom:16px; }
.footer a { display:block; font-size:14px; color:rgba(255,255,255,0.6); padding:4px 0; transition:color 0.2s; }
.footer a:hover { color:#fff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.1); margin-top:40px; padding-top:20px; display:flex; justify-content:space-between; font-size:13px; flex-wrap:wrap; gap:12px; }

/* ========== TEAM ========== */
.team-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; max-width:1100px; margin:0 auto; padding:0 24px; }
.team-card { background:var(--card); border-radius:16px; padding:32px 24px; text-align:center; box-shadow:0 2px 12px rgba(0,0,0,0.06); transition:transform 0.2s,box-shadow 0.2s; }
.team-card:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(0,0,0,0.1); }
.team-avatar { font-size:48px; margin-bottom:12px; }
.team-card h3 { font-size:16px; color:var(--primary); margin-bottom:4px; }
.team-name { font-size:14px; color:var(--accent); font-weight:600; margin-bottom:8px; }
.team-desc { font-size:13px; color:var(--text-light); line-height:1.7; }

/* ========== ANIMATION ========== */
.fade-up { opacity:0; transform:translateY(24px); transition:opacity 0.6s ease,transform 0.6s ease; }
.fade-up.visible { opacity:1; transform:translateY(0); }

/* ========== WECHAT MODAL ========== */
.modal-overlay {
  display:none; position:fixed; z-index:9999; inset:0;
  background:rgba(0,0,0,0.6); backdrop-filter:blur(4px);
  align-items:center; justify-content:center;
}
.modal-overlay.active { display:flex; }
.modal-content {
  background:#fff; border-radius:20px; padding:40px 36px 32px;
  max-width:360px; width:90%; text-align:center;
  position:relative; animation:modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity:0; transform:scale(0.9) translateY(20px); }
  to { opacity:1; transform:scale(1) translateY(0); }
}
.modal-close {
  position:absolute; top:12px; right:16px;
  background:none; border:none; font-size:22px; cursor:pointer;
  color:#999; line-height:1;
}
.modal-close:hover { color:#333; }
.modal-qr {
  width:220px; height:220px; display:block; margin:0 auto 16px;
  border-radius:12px; box-shadow:0 4px 20px rgba(0,0,0,0.1);
}
.modal-name { font-size:20px; font-weight:700; color:var(--primary); margin-bottom:4px; }
.modal-phone { font-size:16px; color:var(--accent); font-weight:600; margin-bottom:8px; }
.modal-tip { font-size:13px; color:#999; }

/* ========== RESPONSIVE ========== */
@media(max-width:768px) {
  .nav-links { display:none; }
  .nav-toggle { display:block; }
  .nav-links.active { display:flex; flex-direction:column; position:absolute; top:64px; left:0; right:0; background:var(--card); padding:16px 24px; gap:16px; box-shadow:0 4px 12px rgba(0,0,0,0.1); }
  .nav-cta { display:none; }
  .about-grid { grid-template-columns:1fr; }
  .ocr-showcase { grid-template-columns:1fr; }
  .compare-grid { grid-template-columns:1fr; }
  .workflow { flex-direction:column; }
  .workflow-arrow { transform:rotate(90deg); }
  .team-grid { grid-template-columns:1fr; }
}

/* ========== CONTENT ========== */
.content-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; max-width:1100px; margin:0 auto; padding:0 24px; }
.content-card { background:var(--card); border-radius:16px; padding:32px 24px; text-align:center; box-shadow:0 2px 12px rgba(0,0,0,0.06); transition:transform 0.2s; }
.content-card:hover { transform:translateY(-4px); }
.content-icon { font-size:40px; margin-bottom:8px; }
.content-card h3 { font-size:17px; color:var(--primary); margin-bottom:8px; }
.content-desc { font-size:14px; color:var(--text-light); line-height:1.7; margin-bottom:12px; }
.content-tag { display:inline-block; font-size:12px; padding:3px 12px; border-radius:20px; background:#e8eaf6; color:var(--primary); font-weight:600; }
.content-tag.active { background:#e8f5e9; color:var(--green); }
@media(max-width:768px) { .content-grid { grid-template-columns:1fr; } }