/* CSSVariantEngine v3.0 — about-pc-crown.com.cn */
/* Palette: violet-cyan | Radius: smooth | Shadow: layered */
/* Spacing: tight | Transition: rich */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"minimal","testimonials":"grid-3","partners":"grid-4","faq":"with-sidebar","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #22d3ee;
    --color-surface: #ede9fe;
    --color-text: #1e1b4b;
    --rgb-primary: 109,40,217;
    --rgb-accent: 34,211,238;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 40px;
    --shadow-sm: 0 2px 8px rgba(109,40,217,0.08), 0 1px 3px rgba(30,27,75,0.06);
    --shadow-md: 0 8px 24px rgba(109,40,217,0.14), 0 4px 10px rgba(30,27,75,0.08), inset 0 0 0 1px rgba(255,255,255,0.6);
    --shadow-lg: 0 18px 44px rgba(109,40,217,0.20), 0 8px 16px rgba(76,29,149,0.12), 0 2px 6px rgba(30,27,75,0.08), inset 0 0 0 1px rgba(255,255,255,0.7);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(150deg, #f5f3ff 0%, #ede9fe 50%, #cffafe 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); }
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: linear-gradient(145deg, #ffffff 0%, #f5f3ff 55%, #e0f2fe 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, #a855f7 50%, var(--color-accent) 100%); box-shadow: 0 4px 14px rgba(109,40,217,0.25), 0 2px 4px rgba(30,27,75,0.1); color: #ffffff; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 2px rgba(109,40,217,0.12); }

/* ========== 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; background: linear-gradient(90deg, rgba(237,233,254,0.5), rgba(224,242,254,0.5)); border-radius: var(--radius-lg); }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; background: linear-gradient(145deg, #ffffff, #f5f3ff); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); }

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(135deg, rgba(109,40,217,0.08), rgba(34,211,238,0.08)), radial-gradient(circle at 20% 30%, rgba(109,40,217,0.12), transparent 60%); }
.hero-content { max-width: 560px; }

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

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; background: radial-gradient(circle at 50% 20%, rgba(109,40,217,0.12), transparent 70%); border-radius: var(--radius-xl); }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 2px 10px rgba(109,40,217,0.18); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: linear-gradient(135deg, rgba(109,40,217,0.12), rgba(34,211,238,0.12)); border-radius: var(--radius-xl); }

/* 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(-4px); box-shadow: var(--shadow-lg); filter: brightness(1.02) saturate(1.05); }

/* 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; }
}