/* CSSVariantEngine v3.0 — 365zhongjiang.com */
/* Palette: vibrant glow | Radius: soft rounded | Shadow: luminous */
/* Spacing: airy | Transition: smooth glow */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"split","testimonials":"masonry","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #f59e0b;
    --color-surface: #fdf4ff;
    --color-text: #1e1b4b;
    --rgb-primary: 124, 58, 237;
    --rgb-accent: 245, 158, 11;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 16px rgba(var(--rgb-accent), 0.25), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 6px 12px rgba(0,0,0,0.07);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.5), 0 12px 24px rgba(0,0,0,0.1);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.75rem;
    --transition: 0.35s 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: var(--color-surface); }
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: #ffffff; }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(0,0,0,0.08); transform: translateY(-2px); animation: subtlePulse 2s ease-in-out infinite; }
.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; border: none; box-shadow: var(--shadow-sm); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.6); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.4); }

/* ========== 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); }
.news-grid .card:nth-child(3n+1) { --rgb-accent: 236, 72, 153; }
.news-grid .card:nth-child(3n+2) { --rgb-accent: 14, 165, 233; }
.news-grid .card:nth-child(3n+3) { --rgb-accent: 34, 197, 94; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list .feature-card:nth-child(1) { --rgb-accent: 236, 72, 153; }
.feature-list .feature-card:nth-child(2) { --rgb-accent: 14, 165, 233; }
.feature-list .feature-card:nth-child(3) { --rgb-accent: 245, 158, 11; }

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

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }
.testimonial-card:nth-child(odd) { --rgb-accent: 168, 85, 247; }
.testimonial-card:nth-child(even) { --rgb-accent: 236, 72, 153; }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
.partner-item { filter: grayscale(0%) brightness(1); transition: var(--transition); }
.partner-item:hover { filter: grayscale(0%) brightness(1.1); box-shadow: 0 0 20px rgba(var(--rgb-accent), 0.5); }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes subtlePulse { 0%, 100% { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(0,0,0,0.08); } 50% { box-shadow: 0 0 38px rgba(var(--rgb-accent), 0.7), 0 8px 16px rgba(0,0,0,0.08); } }

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-card:nth-child(1) { --rgb-accent: 14, 165, 233; }
.stats-card:nth-child(2) { --rgb-accent: 34, 197, 94; }
.stats-card:nth-child(3) { --rgb-accent: 245, 158, 11; }
.stats-card:nth-child(4) { --rgb-accent: 236, 72, 153; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); color: #fff; padding: 4rem 2rem; box-shadow: 0 0 40px rgba(var(--rgb-accent), 0.4); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #f59e0b 100%); }
.card { border: 1px solid rgba(var(--rgb-accent), 0.15); }
header, .header, .navbar { background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); }

/* 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; }
}