/* 统一页头与 Hero：与首页 index.html 保持一致，供子页面复用（须放在 lims-content.css、ai-deploy.css 之后加载） */
:root {
    --font-display: 'Noto Serif SC', 'Songti SC', STSong, serif;
    --primary-navy: #0f172a;
    --accent-blue: #0ea5e9;
    --accent-cyan: #38bdf8;
    --header-height: 70px;
}

/* ===== Header ===== */
header.site-top {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    height: var(--header-height);
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
header.site-top .container { width: auto; max-width: 1200px; padding: 0 20px; }
header.site-top .nav-container { display: flex; justify-content: space-between; align-items: center; height: var(--header-height); }
header.site-top .logo { font-size: 1.5rem; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 10px; }
header.site-top .nav-links { display: flex; gap: 30px; }
header.site-top .nav-links a { color: #94a3b8; font-size: 0.95rem; font-weight: 500; }
header.site-top .nav-links a:hover { color: var(--accent-cyan); }
header.site-top .nav-links a.nav-ai { color: var(--accent-blue); font-weight: 600; }
header.site-top .nav-links a.active { color: #fff; font-weight: 700; }
header.site-top .mobile-menu-btn { display: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ===== Hero（与首页同款背景，高度压缩） ===== */
.hero.hero-page {
    height: auto;
    min-height: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.78) 100%),
                url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?q=80&w=2072&auto=format&fit=crop') center/cover no-repeat;
    display: flex;
    align-items: center;
    color: #fff;
    padding: calc(var(--header-height) + 64px) 0 72px;
}
.hero.hero-page .container { width: 100%; max-width: 1200px; padding: 0 20px; }
.hero.hero-page .hero-content { max-width: 860px; }
.hero.hero-page .hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.hero.hero-page .badge {
    background: rgba(255,255,255,0.1);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--accent-cyan);
}
.hero.hero-page h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.25;
    font-weight: 600;
    margin-bottom: 22px;
    color: #fff;
}
.hero.hero-page p { font-size: 1.12rem; color: #cbd5e1; margin-bottom: 30px; max-width: 760px; line-height: 1.8; }
.hero.hero-page .hero-buttons { display: flex; gap: 15px; flex-wrap: wrap; }
.hero.hero-page .btn { display: inline-block; padding: 12px 30px; border-radius: 8px; font-weight: 600; text-align: center; }
.hero.hero-page .btn-primary { background-color: var(--accent-blue); color: #fff; border: 2px solid var(--accent-blue); }
.hero.hero-page .btn-primary:hover { background-color: #0284c7; border-color: #0284c7; }
.hero.hero-page .btn-outline { background: transparent; color: #fff; border: 2px solid #fff; }
.hero.hero-page .btn-outline:hover { background: #fff; color: var(--primary-navy); }
.hero.hero-page .article-meta { color: #94a3b8; font-size: .85rem; margin: 22px 0 0; }

.breadcrumb { margin-top: 0; }

@media (max-width: 800px) {
    header.site-top .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0; right: 0;
        background-color: var(--primary-navy);
        flex-direction: column;
        padding: 20px;
        gap: 18px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    header.site-top .nav-links.mobile-active { display: flex; }
    header.site-top .mobile-menu-btn { display: block; }
    .hero.hero-page { padding: calc(var(--header-height) + 40px) 0 52px; }
}