/* CSSVariantEngine v3.0 — lddianjing.org.cn */
/* Palette: neon violet cyan | Radius: medium rounded | Shadow: glow-focused */
/* Spacing: mixed tight-loose | Transition: smooth eased */
/* Section layouts: {"news":"masonry-2","features":"grid-2","hero":"overlay","testimonials":"carousel","partners":"scroll","faq":"single-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #22d3ee;
    --color-surface: #0f172a;
    --color-text: #f1f5f9;
    --rgb-primary: 124, 58, 237;
    --rgb-accent: 34, 211, 238;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.25), 0 2px 4px rgba(0,0,0,0.15);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 8px rgba(0,0,0,0.2);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(0,0,0,0.25);
    --space-section: 4.4rem;
    --space-card: 1.7rem;
    --space-gap: 1.9rem;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 10px rgba(var(--rgb-accent), 0.3); }
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); animation: softPulse 4.2s ease-in-out infinite; background-color: #1e293b; border: 1px solid rgba(var(--rgb-accent), 0.3); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: 1px solid var(--color-accent); box-shadow: 0 0 16px rgba(var(--rgb-primary), 0.5); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 30px rgba(var(--rgb-accent), 0.7); transform: scale(1.03); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-shadow: 0 0 4px rgba(var(--rgb-accent), 0.4); }

/* ========== 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); background-color: #1e1b4b; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }
.feature-list .card:nth-child(odd) { background-color: #0c4a6e; }
.feature-list .card:nth-child(even) { background-color: #312e81; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list .card { background-color: #4c1d95; }

/* 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; }
.faq-list .card { background-color: #1e1b4b; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background-color: #0f172a; }

/* 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 */
@keyframes softPulse {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.5), 0 6px 12px rgba(0,0,0,0.2); }
}
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
a:not([class]):hover { color: white; text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.9); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(120deg, #7c3aed 0%, #22d3ee 50%, #4c1d95 100%); }
.card { border-left: 4px solid var(--color-accent); }
header, .header, .navbar { background: rgba(15, 23, 42, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.2); }

/* 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: 0.9rem; }
    .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; }
}