/* CSSVariantEngine v3.0 — zh-ngdata.com.cn */
/* Palette: cyan glow | Radius: medium rounded | Shadow: neon glow */
/* Spacing: mosaic balanced | Transition: smooth ease */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"overlay","testimonials":"carousel","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-accent: #22d3ee;
    --color-surface: #0f172a;
    --color-text: #f1f5f9;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 34, 211, 238;
    --rgb-card-purple: 168, 85, 247;
    --rgb-card-orange: 249, 115, 22;
    --rgb-card-green: 16, 185, 129;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2), 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: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1.5rem;
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 16px rgba(var(--rgb-accent), 0.25), 0 2px 4px rgba(0,0,0,0.15); }
    100% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 8px rgba(0,0,0,0.2); }
}

/* 基础覆盖 */
body { color: var(--color-text); background-color: var(--color-surface); line-height: var(--body-line-height); caret-color: var(--color-accent); }
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-color: #1e293b; border: 1px solid rgba(var(--rgb-accent), 0.15); animation: pulse-glow 4s ease-in-out infinite alternate; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary-dark), var(--color-accent)); color: white; border: 1px solid rgba(var(--rgb-accent), 0.3); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 8px rgba(var(--rgb-primary), 0.3); }

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

/* news: grid-3 */
/* 三列等宽网格 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* 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: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: radial-gradient(circle at 30% 40%, rgba(var(--rgb-accent), 0.15), transparent 60%); }
.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%; }

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

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

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

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

/* 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); border-color: rgba(var(--rgb-accent), 0.4); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.6); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { filter: brightness(1.15); box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.5); }

/* 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; }
}