/* CSSVariantEngine v3.0 — sc-500caipiao.com.cn */
/* Palette: indigo-orange | Radius: extra rounded | Shadow: multi-layer soft */
/* Spacing: contrasting | Transition: smooth easing */
/* Section layouts: {"news":"featured-top","features":"grid-2","hero":"minimal","testimonials":"masonry","partners":"centered","faq":"single-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #f97316;
    --color-surface: #f0f4ff;
    --color-text: #0f172a;
    --rgb-primary: 37, 99, 235;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 14px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.02);
    --shadow-md: 0 4px 12px rgba(37, 99, 235, 0.08), 0 12px 28px rgba(37, 99, 235, 0.12);
    --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.07), 0 24px 48px -12px rgba(15, 23, 42, 0.15);
    --space-section: 4.2rem;
    --space-card: 1.6rem;
    --space-gap: 1.4rem;
    --transition: 0.45s ease-out;
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f8fafc; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 3px rgba(37,99,235,0.06); }
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; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 2px solid transparent; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; }

/* ========== 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; background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%); }

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

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(180deg, #e0e7ff 0%, #f8fafc 100%); } .hero-content { max-width: 560px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); background: linear-gradient(145deg, #fff7ed 0%, #ffedd5 100%); }

/* 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-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; padding: 2rem; border-radius: var(--radius-xl); background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%); color: white; box-shadow: var(--shadow-lg); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 4px rgba(249, 115, 22, 0.2); }
.card { border: 2px solid rgba(var(--rgb-primary), 0.18); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(var(--rgb-primary), 0.3); }
.btn:hover { transform: scale(1.03); box-shadow: 0 6px 18px rgba(var(--rgb-primary), 0.25); }

/* 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: 2.1rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}