/* CSSVariantEngine v3.0 — sv-jinnianhui-qq.com.cn */
/* Palette: warm terracotta + ocean blue | Radius: soft rounded | Shadow: multi-layer gradient */
/* Spacing: generous | Transition: smooth long curve */
/* Section layouts: {"news":"featured-left","features":"horizontal","hero":"minimal","testimonials":"stacked","partners":"grid-6","faq":"two-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #e63946;
    --color-primary-dark: #d62828;
    --color-accent: #faa307;
    --color-surface: #fffbf2;
    --color-text: #1d3557;
    --rgb-primary: 230, 57, 70;
    --rgb-accent: 250, 163, 7;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 4px rgba(29, 53, 87, 0.06), 0 1px 2px rgba(29, 53, 87, 0.04);
    --shadow-md: 0 4px 12px rgba(29, 53, 87, 0.08), 0 2px 6px rgba(230, 57, 70, 0.06);
    --shadow-lg: 0 8px 24px rgba(29, 53, 87, 0.1), 0 4px 12px rgba(230, 57, 70, 0.08);
    --space-section: 3.5rem;
    --space-card: 1.1rem;
    --space-gap: 0.8rem;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 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: linear-gradient(180deg, #ffffff 0%, #fffbf2 40%, #f8f0e3 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section);
    background-attachment: fixed;
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition);
    border: 2px solid transparent;
    border-image: linear-gradient(90deg, #faa307, #e63946, #457b9d) 1;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
.news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
.news-grid > *:first-child { grid-row: span 2; }

/* 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: minimal */
.hero { 
    padding: 3.5rem 0; 
    background: linear-gradient(135deg, #1d3557 0%, #457b9d 40%, #e63946 100%);
} 
.hero-content { max-width: 560px; }

/* 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-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 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(-6px); 
    box-shadow: var(--shadow-lg); 
    filter: saturate(1.1);
}
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #1d3557 0%, #457b9d 35%, #faa307 70%, #e63946 100%);
}
.card { 
    border: 1px solid rgba(var(--rgb-primary), 0.12); 
    background: linear-gradient(145deg, #ffffff, var(--color-surface));
}
header, .header, .navbar { 
    box-shadow: 0 4px 16px rgba(29, 53, 87, 0.12), 0 2px 8px rgba(230, 57, 70, 0.06); 
    background: linear-gradient(90deg, #ffffff, #fffbf2);
}

/* 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: 2.7rem; --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; }
}