/* CSSVariantEngine v3.0 — app4-leyutiyu.com.cn */
/* Palette: editorial-red | Radius: sharp-subtle | Shadow: layered */
/* Spacing: generous | Transition: slow-editorial */
/* Section layouts: {"news":"grid-4","features":"horizontal","hero":"split","testimonials":"masonry","partners":"centered","faq":"with-sidebar","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #c44536;
    --color-primary-dark: #9e2f24;
    --color-accent: #e18a72;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 225,138,114;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 4px;
    --radius-xl: 8px;
    --shadow-sm: 0 1px 2px rgba(26,26,26,0.05), 0 2px 8px rgba(26,26,26,0.06);
    --shadow-md: inset 0 1px 0 rgba(255,255,255,0.8), 0 2px 4px rgba(26,26,26,0.04), 0 8px 24px rgba(26,26,26,0.08);
    --shadow-lg: inset 0 1px 0 rgba(255,255,255,0.9), 0 4px 8px rgba(26,26,26,0.06), 0 16px 48px rgba(26,26,26,0.12);
    --space-section: 3.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.2rem;
    --transition: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    --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: var(--color-surface); background-image: radial-gradient(circle at 20% 0%, rgba(255,255,255,0.6), transparent 50%), linear-gradient(135deg, var(--color-surface) 0%, #ece3d1 100%); }
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-color: #fffbf2; background-image: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(245,241,232,0.7)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); background-image: linear-gradient(135deg, rgba(255,255,255,0.2), transparent 50%, rgba(0,0,0,0.1)); box-shadow: 0 1px 2px rgba(26,26,26,0.1), 0 4px 12px rgba(196,69,54,0.25); color: #fff8f0; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(196,69,54,0.4); }

/* ========== 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: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

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

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

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* 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; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff8f0; padding: 4rem 2rem; }

/* 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: translateY(-4px); box-shadow: var(--shadow-lg); background-image: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(245,241,232,0.8)); }
header, .header, .navbar { box-shadow: 0 1px 2px rgba(26,26,26,0.04), 0 8px 24px rgba(26,26,26,0.06); background-color: rgba(245,241,232,0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }

/* 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: 2.4rem; --space-card: 1.2rem; --space-gap: 0.9rem; }
    .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; }
}