/* Template 7: Corporate Portal (海洋深蓝 · 严谨商务官网) */
:root {
  --primary: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary: #0284c7;
  --bg: #0b1329;
  --surface: #132145;
  --surface-card: #192b59;
  --border: rgba(59, 130, 246, 0.2);
  --border-active: rgba(59, 130, 246, 0.5);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --radius: 12px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Two-Level Header */
.corp-header { position: sticky; top: 0; z-index: 100; background: rgba(11, 19, 41, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.corp-top-bar { background: #080e21; border-bottom: 1px solid rgba(255, 255, 255, 0.05); padding: 0.4rem 0; font-size: 0.8rem; color: var(--text-muted); }
.corp-top-flex { display: flex; justify-content: space-between; align-items: center; }
.corp-main-nav-bar { display: flex; justify-content: space-between; align-items: center; padding: 0.9rem 0; }
.corp-logo img { height: 40px; display: block; }
.corp-nav { display: flex; gap: 2rem; list-style: none; }
.corp-nav a { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); }
.corp-nav a:hover, .corp-nav a.active { color: var(--primary-light); }
.corp-btn-pri { background: var(--primary); color: #fff; font-weight: 600; padding: 0.55rem 1.4rem; border-radius: 6px; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.5rem; }
.corp-btn-pri:hover { background: var(--primary-light); }

/* Enterprise Split Hero */
.corp-hero { padding: 5rem 0 4rem; background: radial-gradient(circle at 70% 30%, rgba(29, 78, 216, 0.15) 0%, transparent 60%); }
.corp-hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 3.5rem; align-items: center; }
.corp-hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(29, 78, 216, 0.15); border: 1px solid var(--border); color: var(--primary-light); padding: 0.35rem 1rem; border-radius: 4px; font-size: 0.85rem; font-weight: 600; margin-bottom: 1.25rem; }
.corp-hero h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 1.25rem; }
.corp-blue-gradient { background: linear-gradient(135deg, #ffffff 40%, var(--primary-light) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.corp-hero-desc { color: var(--text-muted); font-size: 1.1rem; line-height: 1.8; margin-bottom: 2rem; }
.corp-hero-actions { display: flex; gap: 1.25rem; margin-bottom: 2.5rem; }
.corp-btn-outline { border: 1px solid var(--border); color: #fff; padding: 0.55rem 1.4rem; border-radius: 6px; font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.5rem; }
.corp-hero-cert-row { display: flex; gap: 2rem; border-top: 1px solid var(--border); padding-top: 1.5rem; font-size: 0.85rem; color: var(--text-muted); }
.corp-hero-cert-row span { display: flex; align-items: center; gap: 0.5rem; }

/* Dashboard Tablet Graphic Mockup */
.corp-mockup-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 1.5rem; box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5); }
.corp-mockup-panel img { width: 100%; border-radius: 10px; margin-bottom: 1rem; }

/* Partner Alliance Bar */
.corp-partner-bar { background: rgba(19, 33, 69, 0.6); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 2rem 0; }
.corp-partner-flex { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 2rem; align-items: center; text-align: center; }
.corp-partner-item strong { display: block; font-size: 1.6rem; color: var(--primary-light); }
.corp-partner-item span { font-size: 0.85rem; color: var(--text-muted); }

/* Four Core Pillars */
.corp-section { padding: 5rem 0; }
.corp-sec-header { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
.corp-sec-header h2 { font-size: 2.2rem; margin-bottom: 0.8rem; }
.corp-sec-header p { color: var(--text-muted); font-size: 1.05rem; }
.corp-pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.corp-pillar-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem 1.5rem; transition: all 0.3s; }
.corp-pillar-card:hover { border-color: var(--primary-light); transform: translateY(-5px); }
.corp-pillar-icon { width: 50px; height: 50px; border-radius: 10px; background: rgba(29, 78, 216, 0.15); color: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 1.25rem; }
.corp-pillar-card h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }
.corp-pillar-card p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.6; }

/* Enterprise Club Solution */
.corp-solution-box { background: linear-gradient(135deg, var(--surface) 0%, #0d1730 100%); border: 1px solid var(--border); border-radius: 16px; padding: 3.5rem; margin-top: 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.corp-solution-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.corp-solution-list li { display: flex; gap: 0.75rem; color: var(--text-muted); font-size: 0.95rem; }
.corp-solution-list i { color: var(--primary-light); margin-top: 0.25rem; }

/* Multi-Platform Deployment */
.corp-deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.corp-deploy-card { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem; text-align: center; }
.corp-deploy-card i { font-size: 2.8rem; color: var(--primary-light); margin-bottom: 1.25rem; display: block; }
.corp-deploy-card h4 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.corp-deploy-card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 1.5rem; }

/* Corporate FAQ Accordion */
.corp-faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.corp-faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem 2rem; }
.corp-faq-item h4 { font-size: 1.1rem; color: var(--primary-light); margin-bottom: 0.6rem; }
.corp-faq-item p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }

/* Consultation CTA Panel */
.corp-cta-panel { background: linear-gradient(135deg, rgba(29, 78, 216, 0.2), rgba(2, 132, 199, 0.1)), var(--surface); border: 1px solid var(--border-active); border-radius: 16px; padding: 4.5rem 2rem; text-align: center; margin: 4rem 0; }
.corp-cta-panel h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.corp-cta-panel p { color: var(--text-muted); font-size: 1.1rem; max-width: 620px; margin: 0 auto 2rem; }

/* Structured Mega Footer */
.corp-footer { background: #060b18; border-top: 1px solid var(--border); padding: 4.5rem 0 2rem; font-size: 0.9rem; }
.corp-ft-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.corp-ft-col h4 { color: #fff; font-size: 1rem; margin-bottom: 1.2rem; font-weight: 700; }
.corp-ft-links { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.corp-ft-links a { color: var(--text-muted); }
.corp-ft-links a:hover { color: var(--primary-light); }
.corp-ft-bottom { text-align: center; border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 2rem; color: #64748b; font-size: 0.85rem; }

@media (max-width: 992px) {
  .corp-hero-grid, .corp-solution-box { grid-template-columns: 1fr; }
  .corp-pillars-grid, .corp-deploy-grid { grid-template-columns: 1fr; }
  .corp-ft-grid { grid-template-columns: 1fr 1fr; }
  .corp-nav { display: none; }
}