/* CSSVariantEngine v3.0 — zh-hth-news.com.cn */
/* Palette: slate-blue | Radius: medium | Shadow: glow */
/* Spacing: dense-dashboard | Transition: smooth */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"two-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #1e40af;
    --color-accent: #60a5fa;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --rgb-primary: 59,130,246;
    --rgb-accent: 96,165,250;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 2px 4px -1px rgba(15,23,42,.05), 0 0 12px rgba(59,130,246,.12);
    --shadow-md: 0 6px 14px -4px rgba(15,23,42,.08), 0 0 24px rgba(59,130,246,.22);
    --shadow-lg: 0 14px 28px -8px rgba(15,23,42,.14), 0 0 32px rgba(59,130,246,.42);
    --space-section: 4.25rem;
    --space-card: 1.75rem;
    --space-gap: 1.25rem;
    --transition: .22s cubic-bezier(.4,0,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { background-color: #e2e8f0; color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); animation: glowPulse 3s ease-in-out infinite; transition: var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 1.75rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { background: var(--color-surface); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); padding: 2.5rem; text-align: center; }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(var(--rgb-primary), .3); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(900px 420px at 82% -12%, rgba(59,130,246,.5), transparent 60%), linear-gradient(135deg, #334155 0%, #1e293b 100%); }
.card { border: 1px solid rgba(var(--rgb-primary), .12); }
header, .header, .navbar { background: transparent; }

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 8px rgba(96,165,250,.2); }
    50% { box-shadow: 0 0 22px rgba(96,165,250,.55); }
}

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
    :root { --space-section: 1.75rem; --space-card: .875rem; --space-gap: .625rem; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}