/* CSSVariantEngine v3.0 — sg-pgsoft.com.cn */
/* Palette: violet-lavender | Radius: medium rounded | Shadow: glow-accent */
/* Spacing: symmetric uniform | Transition: bouncy glow */
/* Section layouts: {"news":"masonry-2","features":"grid-2","hero":"minimal","testimonials":"grid-3","partners":"centered","faq":"two-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #a78bfa;
    --color-surface: #f5f3ff;
    --color-text: #4c1d95;
    --rgb-primary: 124, 58, 237;
    --rgb-accent: 167, 139, 250;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.5), 0 4px 16px rgba(0,0,0,0.08);
    --space-section: 2.5rem;
    --space-card: 1.25rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

@keyframes softPulse {
    0% { box-shadow: var(--shadow-md); }
    100% { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.5), 0 3px 10px rgba(0,0,0,0.07); }
}

/* 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); animation: softPulse 4s ease-in-out infinite alternate; }
.card:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 6px 20px rgba(0,0,0,0.1); transform: translateY(-2px); }
.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); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-underline-offset: 3px; }
a:not([class]):hover { color: var(--color-primary-dark); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.6); }

/* ========== 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: white; }

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

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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 { border: 1px solid rgba(var(--rgb-accent), 0.15); background-color: white; }

/* 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: 1.5rem; }
    .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; }
}