/* CSSVariantEngine v3.0 — web6-milanapp.com.cn */
/* Palette: indigo | Radius: soft | Shadow: glow */
/* Spacing: airy | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-3","hero":"overlay","testimonials":"carousel","partners":"scroll","faq":"single-column","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #4f46e5;
    --color-primary-dark: #3730a3;
    --color-accent: #818cf8;
    --color-surface: #f1f5f9;
    --color-text: #1e293b;
    --rgb-primary: 79,70,229;
    --rgb-accent: 129,140,248;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 2px rgba(15,23,42,.05), 0 1px 3px rgba(15,23,42,.06);
    --shadow-md: 0 0 0 1px rgba(15,23,42,.04), 0 2px 4px rgba(15,23,42,.04), 0 8px 20px rgba(15,23,42,.08), 0 0 24px rgba(var(--rgb-accent),.2);
    --shadow-lg: 0 0 0 1px rgba(15,23,42,.05), 0 4px 8px rgba(15,23,42,.05), 0 16px 32px rgba(15,23,42,.12), 0 0 36px rgba(var(--rgb-accent),.35);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.25rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); caret-color: var(--color-primary); accent-color: var(--color-primary); }
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: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 4px 16px rgba(var(--rgb-primary), .22); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 12px rgba(var(--rgb-accent), .18); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
.hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; }
.testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 1.75rem; overflow: hidden; animation: partnerScroll 28s linear infinite; }
@keyframes partnerScroll {
    0% { transform: translate3d(0, 0, 0); box-shadow: 0 0 20px rgba(var(--rgb-accent), .12); }
    50% { box-shadow: 0 0 32px rgba(var(--rgb-accent), .28); }
    100% { transform: translate3d(-50%, 0, 0); box-shadow: 0 0 20px rgba(var(--rgb-accent), .12); }
}

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

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.75rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 0 24px rgba(var(--rgb-primary), .3); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.75rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg), 0 0 32px rgba(var(--rgb-accent), .6); border-left-color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #1e1b4b 0%, #4338ca 45%, #6d28d9 100%); }
.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar { background: rgba(255,255,255,.65); backdrop-filter: blur(14px) saturate(160%); -webkit-backdrop-filter: blur(14px) saturate(160%); }

/* 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: 1.75rem; --space-card: 0.875rem; --space-gap: 0.625rem; }
    .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; }
}