/*
Theme Name: 良师数科
Theme URI: https://www.liangshishuke.com
Description: 良师数科企业官网主题
Version: 1.0.0
Author: WorkBuddy
*/

:root {
    --brand: #0c447c;
    --brand2: #378add;
    --accent: #639922;
    --ink: #1f2733;
    --muted: #6b7785;
    --bg: #f6f8fb;
    --line: #e6ebf1;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--ink); background: var(--bg); line-height: 1.7; }
a { color: var(--brand); text-decoration: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 12px rgba(15,40,80,.08); backdrop-filter: saturate(180%) blur(6px); }
body.admin-bar .site-header { top: 32px; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 700; font-size: 20px; color: var(--brand); }
.nav a { margin-left: 22px; color: var(--ink); font-size: 15px; }
.nav a:hover { color: var(--brand2); }

.hero { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; padding: 80px 0; }
.hero h1 { font-size: 38px; margin: 0 0 16px; }
.hero p { font-size: 17px; opacity: .92; max-width: 640px; }
.btn { display: inline-block; background: #fff; color: var(--brand); padding: 12px 26px; border-radius: 8px; font-weight: 600; margin-top: 18px; }
.btn.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); margin-left: 12px; }

section { padding: 64px 0; scroll-margin-top: 70px; }
.section-title { text-align: center; font-size: 28px; margin: 0 0 8px; }
.section-sub { text-align: center; color: var(--muted); margin: 0 0 40px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 26px; }
.card h3 { margin: 0 0 10px; color: var(--brand); }
.card p { color: var(--muted); margin: 0; }

.news { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.news-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.news-item h3 { margin: 0 0 8px; font-size: 17px; }
.news-item .meta { color: var(--muted); font-size: 13px; }

.site-footer { background: #0c2238; color: #cdd9e6; padding: 40px 0; font-size: 14px; }
.site-footer a { color: #9fc3ec; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }

@media (max-width: 768px) {
    .cards, .news, .footer-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 28px; }
}