/* CSSVariantEngine v3.0 — sc-500.net */
/* Palette: indigo-tangerine | Radius: tiny | Shadow: subtle dual-tone */
/* Spacing: compact tight | Transition: snappy fast */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"left-aligned","testimonials":"stacked","partners":"centered","faq":"two-column","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #1d4ed8;
    --color-primary-dark: #1e3a8a;
    --color-accent: #f97316;
    --color-surface: #fef7ee;
    --color-text: #0f172a;
    --rgb-primary: 29,78,216;
    --rgb-accent: 249,115,22;
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 5px;
    --radius-xl: 6px;
    --shadow-sm: 0 1px 3px rgba(var(--rgb-primary),.14);
    --shadow-md: 0 2px 6px rgba(var(--rgb-accent),.11);
    --shadow-lg: 0 3px 10px rgba(var(--rgb-primary),.09);
    --space-section: 2.5rem;
    --space-card: 0.875rem;
    --space-gap: 0.75rem;
    --transition: 0.18s ease-out;
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #fef7ee; }
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-sm); padding: var(--space-card); transition: var(--transition); border: 1px solid #cbd5e1; background-color: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 1px solid var(--color-primary-dark); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-thickness: 1px; }

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; color: #ffffff; }

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

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

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

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background-color: #fef3c7; border: 1px solid #f97316; padding: 1.25rem; border-radius: var(--radius-md); }

/* 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(-2px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #1d4ed8, #f97316); }
header, .header, .navbar { box-shadow: 0 1px 4px rgba(30,58,138,.08); background-color: #ffffff; border-bottom: 1px solid #e2e8f0; }

/* 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: 0.625rem; --space-gap: 0.5rem; }
    .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; }
}