/* Verbalivo CSS v1.0 */
:root {
    --primary-bg: #071827;
    --brand-green: #18A66A;
    --brand-green-hover: #148c59;
    --info-cyan: #2CB7C9;
    --light-bg: #F4F7F8;
    --text-main: #14242F;
    --text-sub: #5A6B75;
    --border: #D8E1E5;
    --warning: #B76A16;
    --white: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: "Inter", "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--text-main);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography & Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.legal-container { max-width: 840px; margin: 40px auto; padding: 0 20px; }
h1, h2, h3 { color: var(--text-main); margin-bottom: 16px; font-weight: 600; }
p { color: var(--text-sub); margin-bottom: 16px; }
a { text-decoration: none; color: var(--info-cyan); }
a:hover { text-decoration: underline; }
.text-warning { color: var(--warning); font-size: 0.9em; }

/* Buttons */
.btn { display: inline-block; padding: 10px 24px; border-radius: 4px; font-weight: 500; text-align: center; cursor: pointer; transition: background 0.3s;}
.btn-primary { background-color: var(--brand-green); color: var(--white); border: none; }
.btn-primary:hover { background-color: var(--brand-green-hover); color: var(--white); text-decoration: none; }
.btn-outline { border: 1px solid var(--border); color: var(--white); background: transparent; }
.btn-outline:hover { border-color: var(--white); text-decoration: none; }

/* Header & Nav */
header { background-color: var(--primary-bg); padding: 16px 0; position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 8px; color: var(--white); font-weight: bold; font-size: 20px; }
.logo span.sub { font-size: 12px; font-weight: normal; color: var(--border); margin-left: 8px; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: var(--border); font-size: 14px; transition: color 0.3s; }
.nav-links a:hover { color: var(--white); text-decoration: none; }

/* Hero Section */
.hero { background-color: var(--primary-bg); color: var(--white); padding: 80px 0; }
.hero .container { display: flex; align-items: center; gap: 40px; }
.hero-text { flex: 1; }
.hero-text h3 { color: var(--info-cyan); font-size: 14px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.hero-text h1 { color: var(--white); font-size: 42px; margin-bottom: 16px; }
.hero-text h2 { color: var(--brand-green); font-size: 24px; margin-bottom: 24px; font-weight: normal; }
.hero-text p { color: var(--border); font-size: 16px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; margin-bottom: 24px; }
.hero-visual { flex: 1; background: #0a2236; border: 1px solid #1a3a54; border-radius: 8px; padding: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.abstract-ui { display: flex; flex-direction: column; gap: 12px; }
.ui-line { height: 16px; background: rgba(255,255,255,0.1); border-radius: 4px; }
.ui-line.cn { width: 80%; background: rgba(24, 166, 106, 0.2); }
.ui-line.en { width: 90%; background: rgba(44, 183, 201, 0.2); }

/* Sections */
section { padding: 80px 0; }
.bg-light { background-color: var(--light-bg); }
.section-title { text-align: center; font-size: 32px; margin-bottom: 48px; }

/* Grid Layouts */
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 24px; }
.card h3 { font-size: 18px; color: var(--text-main); margin-bottom: 12px; }

/* Footer */
footer { background-color: var(--primary-bg); color: var(--border); padding: 40px 0 20px; font-size: 14px; text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--border); }
.footer-links a:hover { color: var(--white); }
.icp { font-size: 12px; color: var(--border); margin-top: 24px; }

/* Legal Pages */
.legal-header { text-align: center; margin-bottom: 40px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.legal-content h2 { font-size: 20px; margin-top: 32px; }
.legal-content h3 { font-size: 16px; margin-top: 24px; }

/* Responsive */
@media (max-width: 768px) {
    .hero .container { flex-direction: column; }
    .nav-links { display: none; } /* Simplified mobile for v1 */
    .hero-text h1 { font-size: 32px; }
}

/* Print Friendly */
@media print {
    header, footer, .btn { display: none; }
    body { color: #000; background: #fff; }
    .legal-container { max-width: 100%; margin: 0; }
}