/* CSSVariantEngine v3.0 — bafangtiyu.net.cn */
/* Palette: gradient-rich asymmetric | Radius: bold rounded | Shadow: multi-layer chromatic */
/* Spacing: mixed tight-loose | Transition: smooth long curve */
/* Section layouts: {"news":"grid-4","features":"horizontal","hero":"minimal","testimonials":"masonry","partners":"scroll","faq":"two-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #7928ca;
    --color-primary-dark: #4c1d95;
    --color-accent: #ff0080;
    --color-surface: #0f172a;
    --color-text: #f8fafc;
    --rgb-primary: 121,40,202;
    --rgb-accent: 255,0,128;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 8px rgba(121,40,202,0.18), 0 1px 3px rgba(255,0,128,0.12);
    --shadow-md: 0 8px 20px rgba(121,40,202,0.22), 0 4px 8px rgba(255,0,128,0.15), 0 2px 4px rgba(0,212,255,0.08);
    --shadow-lg: 0 16px 40px rgba(121,40,202,0.28), 0 8px 16px rgba(255,0,128,0.18), 0 4px 8px rgba(0,212,255,0.12);
    --space-section: 3.2rem;
    --space-card: 1.35rem;
    --space-gap: 0.95rem;
    --transition: 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
    background: linear-gradient(135deg, rgba(121,40,202,0.05) 0%, rgba(255,0,128,0.03) 100%);
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition);
    background: linear-gradient(135deg, rgba(121,40,202,0.12) 0%, rgba(255,0,128,0.08) 50%, rgba(0,212,255,0.06) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, #7928ca 0%, #ff0080 50%, #00d4ff 100%);
    color: white;
}
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
                .news-grid > *:nth-child(odd) {
                    background: linear-gradient(180deg, rgba(121,40,202,0.15) 0%, rgba(76,29,149,0.2) 100%);
                }
                .news-grid > *:nth-child(even) {
                    background: linear-gradient(180deg, rgba(255,0,128,0.15) 0%, rgba(225,29,72,0.2) 100%);
                }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: 40px; overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; 
                    background: linear-gradient(45deg, rgba(0,212,255,0.12) 0%, rgba(121,40,202,0.1) 100%);
                }

/* hero: minimal */
.hero { padding: 2rem 0; 
    background: radial-gradient(circle at top left, rgba(121,40,202,0.2) 0%, transparent 50%),
                radial-gradient(circle at bottom right, rgba(255,0,128,0.2) 0%, transparent 50%);
} 
.hero-content { max-width: 560px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); 
                    background: linear-gradient(-45deg, rgba(255,255,255,0.08) 0%, rgba(0,212,255,0.1) 100%);
                }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 25s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
                .partner-grid > * {
                    background: linear-gradient(135deg, rgba(255,0,128,0.1) 0%, rgba(255,255,255,0.05) 100%);
                }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list > *:nth-child(odd) {
    background: linear-gradient(90deg, rgba(76,29,149,0.2) 0%, rgba(121,40,202,0.1) 100%);
}
.faq-list > *:nth-child(even) {
    background: linear-gradient(90deg, rgba(225,29,72,0.2) 0%, rgba(255,0,128,0.1) 100%);
}

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid > * {
                    background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, transparent 70%);
                }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; 
    background: linear-gradient(90deg, rgba(121,40,202,0.2) 0%, rgba(255,0,128,0.2) 50%, rgba(0,212,255,0.2) 100%);
}

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card { 
    border: 1px solid; 
    border-image: linear-gradient(135deg, #7928ca, #ff0080, #00d4ff, #7928ca) 1; 
}

/* 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: 2.1rem; --space-card: 1.1rem; --space-gap: 0.7rem; }
    .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; }
}