/* CSSVariantEngine v3.0 — delta-game-kaiyun.com */
/* Palette: ember | Radius: sharp | Shadow: hard-offset */
/* Spacing: comfortable | Transition: snappy */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"split","testimonials":"stacked","partners":"grid-4","faq":"two-column","stats":"grid-4","cta":"centered"} */

:root {
    --color-primary: #c2410c;
    --color-primary-dark: #7c2d12;
    --color-accent: #fbbf24;
    --color-surface: #fff7ed;
    --color-text: #1c1917;
    --rgb-primary: 194,65,12;
    --rgb-accent: 251,191,36;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px rgba(28,25,23,.9);
    --shadow-md: 4px 4px 0px rgba(28,25,23,.85), 8px 8px 0px rgba(194,65,12,.12);
    --shadow-lg: 6px 6px 0px rgba(28,25,23,.85), 12px 12px 0px rgba(251,191,36,.18);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #fffbf5; }
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); border: 2px solid #1c1917; background: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 3px 3px 0px #1c1917; border: 2px solid #1c1917; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-primary-dark); text-shadow: 1px 1px 0px rgba(251,191,36,.5); }

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

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%); border: 3px solid #1c1917; box-shadow: 8px 8px 0px rgba(194,65,12,.2); padding: 2rem; border-radius: var(--radius-lg); }

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

/* 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-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; background: #1c1917; color: #fbbf24; border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: 6px 6px 0px rgba(194,65,12,.4); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: linear-gradient(160deg, #fbbf24 0%, #f59e0b 100%); border: 3px solid #1c1917; border-radius: var(--radius-lg); padding: 2rem; box-shadow: 8px 8px 0px rgba(28,25,23,.85); }

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

/* 条件性装饰 */
header, .header, .navbar { box-shadow: 0 3px 0px #1c1917, 0 6px 14px rgba(194,65,12,.15); border-bottom: 2px solid #1c1917; }

/* 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; }
}