/* ===== GEOPro 商务风格 ===== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  color: #1e293b; line-height: 1.7; background: #f8fafc;
}
a { color: #2563eb; text-decoration: none; }
img { max-width: 100%; }
ul { list-style: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Navbar */
.navbar {
  background: #fff; border-bottom: 1px solid #e2e8f0;
  position: sticky; top: 0; z-index: 100;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 22px; font-weight: 700; color: #1e293b; letter-spacing: -0.5px; }
.logo span { color: #2563eb; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  padding: 8px 16px; font-size: 15px; color: #475569; border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.nav-links a:hover, .nav-links a.active { background: #eff6ff; color: #2563eb; }
.btn-nav { background: #2563eb !important; color: #fff !important; padding: 8px 20px !important; border-radius: 6px; }
.btn-nav:hover { background: #1d4ed8 !important; }

/* Buttons */
.btn {
  display: inline-block; padding: 12px 28px; font-size: 16px; font-weight: 600;
  border-radius: 8px; cursor: pointer; transition: all 0.2s; text-align: center;
  border: 2px solid transparent;
}
.btn-primary { background: #2563eb; color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-outline { background: transparent; color: #2563eb; border-color: #2563eb; }
.btn-outline:hover { background: #eff6ff; }
.btn-lg { padding: 14px 36px; font-size: 17px; }
.btn-block { width: 100%; }
.btn-full { width: 100%; padding: 14px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: #fff; padding: 100px 0 80px; text-align: center;
}
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero h1 span { color: #60a5fa; }
.hero-sub { font-size: 18px; color: #cbd5e1; max-width: 680px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-actions .btn-outline { color: #fff; border-color: #fff; }
.hero-actions .btn-outline:hover { background: rgba(255,255,255,0.1); }

/* Logo Strip */
.logos { padding: 40px 0; background: #fff; text-align: center; }
.logos-label { font-size: 14px; color: #94a3b8; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; }
.logos-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px 32px; }
.logos-grid span {
  font-size: 15px; color: #64748b; font-weight: 500;
  padding: 6px 16px; background: #f1f5f9; border-radius: 20px;
}

/* Stats */
.problem { padding: 80px 0; background: #fff; }
.problem h2 { text-align: center; font-size: 32px; margin-bottom: 48px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { text-align: center; padding: 32px 20px; background: #f8fafc; border-radius: 12px; }
.stat-num { font-size: 42px; font-weight: 800; color: #2563eb; margin-bottom: 8px; }
.stat-card p { font-size: 15px; color: #475569; line-height: 1.5; }
.problem-conclusion { text-align: center; margin-top: 48px; font-size: 18px; color: #334155; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats-grid { grid-template-columns: 1fr; } }

/* How It Works */
.how-it-works { padding: 80px 0; background: #f8fafc; }
.how-it-works h2 { text-align: center; font-size: 32px; margin-bottom: 48px; }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.step { text-align: center; padding: 32px 16px; background: #fff; border-radius: 12px; }
.step-num { font-size: 28px; font-weight: 800; color: #2563eb; margin-bottom: 12px; }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: #64748b; line-height: 1.6; }
@media (max-width: 768px) { .steps { grid-template-columns: 1fr; gap: 12px; } }

/* Comparison */
.comparison { padding: 80px 0; background: #fff; }
.comparison h2 { text-align: center; font-size: 32px; margin-bottom: 40px; }
.compare-grid { display: flex; align-items: center; justify-content: center; gap: 32px; flex-wrap: wrap; }
.compare-card {
  padding: 40px; border-radius: 16px; width: 320px;
}
.compare-card.before { background: #fef2f2; border: 2px solid #fecaca; }
.compare-card.after { background: #f0fdf4; border: 2px solid #bbf7d0; }
.compare-tag { font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.compare-card.before .compare-tag { color: #dc2626; }
.compare-card.after .compare-tag { color: #16a34a; }
.compare-score { font-size: 52px; font-weight: 800; margin-bottom: 16px; }
.compare-card.before .compare-score { color: #dc2626; }
.compare-card.after .compare-score { color: #16a34a; }
.compare-card ul { text-align: left; }
.compare-card li { padding: 4px 0; font-size: 15px; color: #475569; }
.compare-arrow { font-size: 36px; color: #94a3b8; font-weight: 300; }

/* CTA */
.cta {
  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
  color: #fff; text-align: center; padding: 80px 0;
}
.cta h2 { font-size: 36px; margin-bottom: 12px; }
.cta p { font-size: 18px; color: #bfdbfe; margin-bottom: 32px; }
.cta .btn-primary { background: #fff; color: #2563eb; }
.cta .btn-primary:hover { background: #f1f5f9; }

/* FAQ */
.faq { padding: 80px 0; background: #f8fafc; }
.faq h2 { text-align: center; font-size: 32px; margin-bottom: 40px; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { padding: 24px 0; border-bottom: 1px solid #e2e8f0; }
.faq-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; cursor: pointer; }
.faq-item h3:hover { color: #2563eb; }
.faq-item p { font-size: 15px; color: #64748b; line-height: 1.7; }

/* Footer */
.footer { background: #0f172a; color: #94a3b8; padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .logo { color: #fff; }
.footer-brand .logo span { color: #60a5fa; }
.footer-brand p { margin-top: 8px; font-size: 14px; }
.footer-links h4 { color: #e2e8f0; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.footer-links a { display: block; color: #94a3b8; font-size: 14px; padding: 4px 0; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 40px; padding: 20px 0; border-top: 1px solid #1e293b; text-align: center; font-size: 13px; }
@media (max-width: 768px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-inner { grid-template-columns: 1fr; } }

/* ===== Page Hero ===== */
.page-hero { background: #f1f5f9; padding: 64px 0 48px; text-align: center; }
.page-hero h1 { font-size: 36px; }
.page-hero .hero-sub { max-width: 600px; }

/* ===== Service Page ===== */
.service-detail { padding: 64px 0; }
.service-step { padding: 32px; margin-bottom: 24px; background: #fff; border-radius: 12px; }
.service-step .step-header { display: flex; align-items: center; gap: 16px; margin-bottom: 12px; }
.step-badge { display: inline-block; padding: 4px 14px; background: #eff6ff; color: #2563eb; font-size: 13px; font-weight: 600; border-radius: 20px; }
.service-step h2 { font-size: 22px; }
.service-step > p { font-size: 15px; color: #475569; margin-bottom: 12px; }
.step-deliverable { background: #f8fafc; padding: 12px 16px; border-radius: 8px; font-size: 14px; color: #475569; }
.step-deliverable strong { color: #1e293b; }
.service-cta { text-align: center; margin-top: 40px; }
.service-cta p { font-size: 18px; margin-bottom: 16px; }

/* ===== Pricing ===== */
.pricing-section { padding: 64px 0; }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pricing-card { background: #fff; border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; }
.pricing-card.featured { border: 2px solid #2563eb; position: relative; }
.pricing-badge { background: #2563eb; color: #fff; text-align: center; padding: 4px 0; font-size: 13px; font-weight: 700; text-transform: uppercase; }
.pricing-header { padding: 28px 24px; }
.pricing-header h3 { font-size: 18px; color: #64748b; margin-bottom: 8px; }
.price { font-size: 36px; font-weight: 800; }
.price span { font-size: 16px; font-weight: 400; color: #94a3b8; }
.price-desc { font-size: 14px; color: #94a3b8; margin-top: 4px; }
.pricing-features { padding: 0 24px 24px; flex: 1; }
.pricing-features li { padding: 8px 0 8px 24px; font-size: 14px; color: #475569; position: relative; }
.pricing-features li::before { content: "✓"; position: absolute; left: 0; color: #10b981; font-weight: 700; }
.pricing-features li.na { color: #cbd5e1; }
.pricing-features li.na::before { content: "—"; color: #cbd5e1; }
.pricing-features li:last-child { border-top: 1px solid #f1f5f9; margin-top: 12px; padding-top: 12px; color: #2563eb; font-weight: 600; }
.pricing-card .btn { margin-top: auto; border-radius: 0; }
.pricing-note { text-align: center; margin-top: 40px; color: #64748b; }
.pricing-note p { margin-bottom: 4px; }
@media (max-width: 992px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .pricing-grid { grid-template-columns: 1fr; } }

/* ===== Cases ===== */
.cases-section { padding: 64px 0; }
.case-card { background: #fff; border-radius: 16px; padding: 40px; margin-bottom: 32px; }
.case-tag { display: inline-block; padding: 4px 14px; background: #eff6ff; color: #2563eb; font-size: 13px; font-weight: 600; border-radius: 20px; margin-bottom: 12px; }
.case-card h2 { font-size: 24px; margin-bottom: 8px; }
.case-desc { color: #64748b; margin-bottom: 24px; }
.case-metrics { display: flex; align-items: center; gap: 24px; margin-bottom: 20px; }
.metric { text-align: center; }
.metric-label { font-size: 12px; text-transform: uppercase; color: #94a3b8; }
.metric-value { font-size: 42px; font-weight: 800; }
.metric.before .metric-value { color: #dc2626; }
.metric.after .metric-value { color: #16a34a; }
.metric-unit { font-size: 13px; color: #94a3b8; }
.metric-arrow { font-size: 28px; color: #94a3b8; }
.case-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.case-detail-item { display: flex; justify-content: space-between; padding: 8px 16px; background: #f8fafc; border-radius: 8px; font-size: 14px; }
.change { font-weight: 600; }
.change.up { color: #16a34a; }
blockquote { border-left: 4px solid #2563eb; padding: 12px 20px; background: #f8fafc; border-radius: 0 8px 8px 0; font-style: italic; color: #475569; margin-top: 16px; }

/* ===== About ===== */
.about-content { padding: 64px 0; }
.about-section { margin-bottom: 48px; }
.about-section h2 { font-size: 26px; margin-bottom: 16px; }
.about-section p { font-size: 16px; color: #475569; margin-bottom: 12px; }
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.why-item { padding: 24px; background: #fff; border-radius: 12px; }
.why-item h3 { font-size: 18px; margin-bottom: 8px; }
.why-item p { font-size: 14px; color: #64748b; }
@media (max-width: 576px) { .why-grid { grid-template-columns: 1fr; } }

/* ===== Contact ===== */
.contact-section { padding: 64px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; }
.contact-info h2 { margin-bottom: 24px; }
.info-item { margin-bottom: 24px; }
.info-item h3 { font-size: 15px; color: #64748b; margin-bottom: 4px; }
.info-item p { font-size: 16px; }
.qr-placeholder {
  width: 160px; height: 160px; background: #f1f5f9; border: 2px dashed #cbd5e1;
  display: flex; align-items: center; justify-content: center;
  color: #94a3b8; font-size: 13px; margin-top: 8px; border-radius: 12px;
}
.contact-form-wrap h2 { margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 10px 14px; border: 1px solid #e2e8f0; border-radius: 8px;
  font-size: 15px; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #2563eb; }
.form-group input[type="submit"] { background: #2563eb; color: #fff; cursor: pointer; }
.form-note { font-size: 13px; color: #94a3b8; margin-top: 12px; }
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }