/* CSSVariantEngine v3.0 — huobotiyu.sh.cn */
/* Palette: spotlight-stage | Radius: medium-glow | Shadow: gold-halo */
/* Spacing: centered-symmetric | Transition: smooth-pulsing */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"centered"} */

:root {
    --color-primary: #7e22ce;
    --color-primary-dark: #581c87;
    --color-accent: #f59e0b;
    --color-surface: #1e1b4b;
    --color-text: #fef3c7;
    --rgb-primary: 126, 34, 206;
    --rgb-accent: 245, 158, 11;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 0 36px rgba(var(--rgb-accent), 0.65);
    --space-section: 4rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { background-color: #0f0f1a; color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 16px rgba(var(--rgb-accent), 0.3); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { background-color: var(--color-surface); border: 1px solid rgba(var(--rgb-accent), 0.15); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: var(--space-card); transition: var(--transition); animation: softPulse 5s ease-in-out infinite alternate; }
.btn, button[class*="btn"], a[class*="btn"] { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); color: white; border: 1px solid rgba(var(--rgb-accent), 0.2); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration: none; }
a:not([class]):hover { text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.7); }

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

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* 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%); } }

/* 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; }

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); border-color: rgba(var(--rgb-accent), 0.5); box-shadow: var(--shadow-lg); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: var(--shadow-lg); transform: scale(1.03); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #581c87, #0f0f1a); }
header, .header, .navbar { background: rgba(15, 15, 26, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.1); }

@keyframes softPulse {
    0% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.2); }
    100% { box-shadow: 0 0 18px rgba(var(--rgb-accent), 0.35); }
}

/* 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; }
}