/* CSSVariantEngine v3.0 — ch-sanshengdianjing.com.cn */
/* Palette: warm terracotta | Radius: soft rounded | Shadow: multi-layer warm */
/* Spacing: large vertical gaps | Transition: long smooth */
/* Section layouts: {"news":"masonry-2","features":"grid-3","hero":"left-aligned","testimonials":"grid-3","partners":"grid-4","faq":"single-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #9a5a3f;
    --color-accent: #e6a98a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 230,169,138;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 4px rgba(45,45,45,.06), 0 1px 2px rgba(196,123,90,.03);
    --shadow-md: 0 4px 8px rgba(45,45,45,.07), 0 2px 4px rgba(196,123,90,.05), 0 1px 3px rgba(45,45,45,.04);
    --shadow-lg: 0 8px 16px rgba(45,45,45,.09), 0 4px 8px rgba(196,123,90,.07), 0 2px 6px rgba(45,45,45,.05);
    --space-section: 4.5rem;
    --space-card: 2.2rem;
    --space-gap: 1.75rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 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: linear-gradient(180deg, #faf8f3 0%, #f5f0e6 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: linear-gradient(145deg, #ffffff 0%, #faf8f3 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(135deg, #c47b5a 0%, #d9946f 100%);
    color: #fff;
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* 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; }

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

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

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

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

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 760px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-6px); 
    box-shadow: var(--shadow-lg); 
}
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #c47b5a 0%, #d9946f 35%, #b36a48 70%, #a15837 100%); 
}
.card { 
    border: 1px solid transparent; 
    border-image: linear-gradient(135deg, rgba(196,123,90,.2), rgba(135,168,120,.2)) 1 stretch; 
}
header, .header, .navbar { 
    box-shadow: 0 4px 12px rgba(45,45,45,.06), 0 2px 6px rgba(196,123,90,.04); 
    background: linear-gradient(180deg, #ffffff 0%, #faf8f3 100%);
}

/* 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: 2.5rem; --space-card: 1.1rem; --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; }
}