/* CSSVariantEngine v3.0 — int-aoke.com.cn */
/* Palette: pop-retro | Radius: ultra-sharp | Shadow: hard-offset colored */
/* Spacing: medium | Transition: snappy-fast */
/* Section layouts: {"news":"masonry-2","features":"grid-4","hero":"minimal","testimonials":"grid-3","partners":"centered","faq":"single-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #f97316;
    --color-surface: #fffbeb;
    --color-text: #0f172a;
    --rgb-primary: 37, 99, 235;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 0;
    --radius-md: 1px;
    --radius-lg: 2px;
    --radius-xl: 3px;
    --shadow-sm: 2px 2px 0px rgba(var(--rgb-accent), 0.75);
    --shadow-md: 4px 4px 0px rgba(var(--rgb-accent), 0.85);
    --shadow-lg: 6px 6px 0px rgba(var(--rgb-accent), 0.95);
    --space-section: 5.2rem;
    --space-card: 2.1rem;
    --space-gap: 1.75rem;
    --transition: 0.15s ease-out;
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 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); }
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: #ffffff; border: 3px solid var(--color-primary); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: var(--color-accent); color: #ffffff; border: 2px solid var(--color-primary); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

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

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%); color: #fff; padding: 4rem 2rem; border-top: 4px solid var(--color-accent); border-bottom: 4px solid var(--color-accent); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.card { border-left: 4px solid var(--color-accent); }
header, .header, .navbar { box-shadow: 3px 3px 0px rgba(15, 23, 42, 0.12); background: #ffffff; border-bottom: 3px solid var(--color-primary); }

/* 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; }
}