/* CSSVariantEngine v3.0 — dianjingjingcaiguanfang.sx.cn */
/* Palette: spotlight premium | Radius: organic curved | Shadow: multi-layer gradient | Spacing: spacious stage | Transition: smooth long */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"split","testimonials":"grid-3","partners":"scroll","faq":"single-column","stats":"big-number","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-surface: #1a1a2e;
    --color-text: #f8fafc;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 4px;
    --radius-md: 20px;
    --radius-lg: 36px;
    --radius-xl: 48px;
    --shadow-sm: 0 2px 8px rgba(124,58,237,0.15), 0 1px 3px rgba(245,158,11,0.1);
    --shadow-md: 0 8px 24px rgba(124,58,237,0.2), 0 4px 12px rgba(245,158,11,0.12);
    --shadow-lg: 0 16px 48px rgba(124,58,237,0.25), 0 8px 24px rgba(245,158,11,0.18), inset 0 1px 0 rgba(255,255,255,0.08);
    --space-section: 5.5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background-color: #0f0f1a;
    caret-color: var(--color-accent);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 24px rgba(245,158,11,0.2); }
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, #1e1b4b, #1a1a2e);
    backdrop-filter: blur(12px) saturate(160%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    background-size: 200% 100%;
}
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: calc(var(--space-gap) * 0.8); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

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

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

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 24s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

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

/* 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; 
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* cta: card-style */
.cta-inner { 
    background: radial-gradient(circle at top left, rgba(124,58,237,0.2), rgba(245,158,11,0.2), transparent 70%), #1a1a2e; 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center;
    border: 3px solid transparent;
    border-image: linear-gradient(135deg, var(--color-primary), var(--color-accent), #ec4899) 1 stretch;
}

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-primary); text-shadow: 0 0 12px rgba(124,58,237,0.4); }
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(180deg, #0f0f1a 0%, #2e1065 40%, #0f0f1a 100%); 
}
.card { 
    border: 2px solid transparent; 
    border-image: linear-gradient(135deg, rgba(124,58,237,0.3), rgba(245,158,11,0.3)) 1 stretch; 
}

/* 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; }
}