/* CSSVariantEngine v3.0 — boyoutiyu.net.cn */
/* Palette: editorial-magazine | Radius: sharp | Shadow: hard-offset */
/* Spacing: generous | Transition: snappy */
/* Section layouts: {"news":"featured-top","features":"horizontal","hero":"split","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #c44536;
    --color-primary-dark: #a3372b;
    --color-accent: #d9776b;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 217,119,107;
    --radius-sm: 2px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px #1a1a1a;
    --shadow-md: 4px 4px 0px #1a1a1a;
    --shadow-lg: 6px 6px 0px rgba(26,26,26,0.75);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.15s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    background-color: var(--color-surface);
    line-height: var(--body-line-height); 
}
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: 2px solid #1a1a1a;
    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: 2px solid currentColor;
    border-radius: var(--radius-md); 
    background-color: var(--color-primary);
    color: #ffffff;
    transition: var(--transition); 
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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; }

/* 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: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: full-bg */
.cta-section { 
    background: var(--color-primary); 
    color: var(--color-surface); 
    border-top: 3px solid #1a1a1a;
    border-bottom: 3px solid #1a1a1a;
    padding: 4rem 2rem; 
}

/* Page Layout: narrow-centered */
/* 宽版居中 */
.page-main { max-width: 1320px; margin: 0 auto; padding: 0 60px; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-4px); 
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg); 
}
a:not([class]):hover { color: var(--color-accent); text-decoration-thickness: 2px; }
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #c44536, #8b2f25); 
    color: var(--color-surface);
}
header, .header, .navbar { 
    background: transparent; 
    border-bottom: 2px solid rgba(26,26,26,0.15);
}

/* 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; }
    .page-main { padding: 0 20px; }
}