/* CSSVariantEngine v3.0 — dongying-web.com.cn */
/* Palette: midnight-slate | Radius: medium | Shadow: glow */
/* Spacing: balanced | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"overlay","testimonials":"masonry","partners":"grid-4","faq":"two-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #1e3a5f;
    --color-accent: #60a5fa;
    --color-surface: #eef4ff;
    --color-text: #1e293b;
    --rgb-primary: 59,130,246;
    --rgb-accent: 96,165,250;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 0 8px rgba(59,130,246,.12);
    --shadow-md: 0 0 16px rgba(59,130,246,.18), 0 2px 6px rgba(30,58,95,.10);
    --shadow-lg: 0 0 24px rgba(59,130,246,.28), 0 4px 12px rgba(30,58,95,.14);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.28s cubic-bezier(.4,0,.2,1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #1e3a5f; }
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); background-color: #ffffff; border: 1px solid rgba(59,130,246,.10); }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(96,165,250,.6), 0 4px 14px rgba(30,58,95,.16); border-color: rgba(96,165,250,.35); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: #ffffff; border-color: transparent; box-shadow: 0 0 14px rgba(59,130,246,.35); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: #2563eb; box-shadow: 0 0 28px rgba(96,165,250,.65), 0 2px 8px rgba(30,58,95,.20); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: #2563eb; text-shadow: 0 0 12px rgba(96,165,250,.55); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(135deg, #1e3a5f 0%, #2d4a6b 55%, #3b82f6 100%); }
                .hero-content { position: relative; z-index: 1; color: #f0f6ff; text-shadow: 0 0 24px rgba(96,165,250,.45); }

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * { color: #1e3a5f; text-shadow: 0 0 16px rgba(96,165,250,.30); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

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

/* 条件性装饰 */
header, .header, .navbar { box-shadow: 0 0 20px rgba(59,130,246,.22), 0 2px 8px rgba(30,58,95,.14); background-color: #252e3a; border-bottom: 1px solid rgba(96,165,250,.18); }

/* 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: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .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; }
}