/* CSSVariantEngine v3.0 — intl5-xmpandacom.cn */
/* Palette: storm | Radius: glowing | Shadow: neon */
/* Spacing: asymmetric | Transition: smooth */
/* Section layouts: {"news":"featured-left","features":"grid-4","hero":"split","testimonials":"masonry","partners":"grid-4","faq":"single-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #f43f5e;
    --color-surface: #0b0a12;
    --color-text: #ece5ff;
    --rgb-primary: 124,58,237;
    --rgb-accent: 244,63,94;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 0 12px rgba(244,63,94,.2), 0 2px 4px rgba(0,0,0,.3);
    --shadow-md: 0 0 24px rgba(244,63,94,.35), 0 8px 16px rgba(0,0,0,.4);
    --shadow-lg: 0 0 32px rgba(244,63,94,.55), 0 20px 40px rgba(0,0,0,.5);
    --space-section: 3.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.125rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 24px rgba(var(--rgb-accent), .35), 0 8px 16px rgba(0,0,0,.4); }
    50% { box-shadow: 0 0 40px rgba(var(--rgb-accent), .7), 0 8px 16px rgba(0,0,0,.4); }
}

/* 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 24px rgba(var(--rgb-accent), .25); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(124,58,237,.08), transparent); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, rgba(124,58,237,.25), rgba(11,10,18,.85)); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); animation: glowPulse 4s ease-in-out infinite; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 16px rgba(var(--rgb-accent), .35); background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); color: #fff; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 12px rgba(var(--rgb-accent), .3); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
.news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); background: linear-gradient(135deg, rgba(124,58,237,.3), rgba(11,10,18,.7)); border-radius: var(--radius-lg); box-shadow: 0 0 24px rgba(var(--rgb-primary), .2), inset 0 0 0 1px rgba(var(--rgb-accent), .25); }
.news-grid > *:first-child { grid-row: span 2; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); background: linear-gradient(180deg, rgba(11,10,18,.7), rgba(124,58,237,.15)); border-radius: var(--radius-lg); box-shadow: 0 0 20px rgba(var(--rgb-primary), .15), inset 0 0 0 1px rgba(var(--rgb-accent), .15); }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 1.8rem; align-items: center; background: radial-gradient(circle at 80% 20%, rgba(244,63,94,.2), transparent 50%), rgba(11,10,18,.5); border-radius: var(--radius-xl); box-shadow: 0 0 32px rgba(var(--rgb-accent), .2), inset 0 0 0 1px rgba(var(--rgb-primary), .3); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); background: linear-gradient(135deg, rgba(124,58,237,.12), rgba(11,10,18,.6)); border-radius: var(--radius-lg); box-shadow: inset 0 0 0 1px rgba(var(--rgb-accent), .2), 0 0 20px rgba(var(--rgb-primary), .2); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; background: linear-gradient(90deg, rgba(124,58,237,.2), rgba(244,63,94,.1)); border-radius: var(--radius-lg); box-shadow: 0 0 24px rgba(var(--rgb-primary), .2), inset 0 0 0 1px rgba(var(--rgb-accent), .2); }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; background: rgba(11,10,18,.55); border-radius: var(--radius-lg); box-shadow: 0 0 24px rgba(var(--rgb-accent), .15), inset 0 0 0 1px rgba(var(--rgb-primary), .25); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; background: linear-gradient(180deg, rgba(124,58,237,.2), rgba(244,63,94,.1)); border-radius: var(--radius-lg); box-shadow: 0 0 28px rgba(var(--rgb-primary), .25), inset 0 0 0 1px rgba(var(--rgb-accent), .25); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.8rem; background: linear-gradient(120deg, var(--color-primary-dark), var(--color-accent)); border-radius: var(--radius-xl); box-shadow: 0 0 40px rgba(var(--rgb-accent), .35), inset 0 0 0 1px rgba(var(--rgb-primary), .3); }

/* 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-accent); text-shadow: 0 0 16px rgba(var(--rgb-accent), .6); }
.card { border: 1px solid rgba(var(--rgb-accent), .3); }
header, .header, .navbar { box-shadow: 0 2px 16px rgba(var(--rgb-accent), .15), 0 4px 12px rgba(0,0,0,.4); background: rgba(11,10,18,.8); backdrop-filter: blur(12px); -webkit-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: 2.25rem; --space-card: 1.125rem; --space-gap: 0.875rem; }
    .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; }
}