/* CSSVariantEngine v3.0 — app4-starsports.com.cn */
/* Palette: violet+amber | Radius: large | Shadow: soft */
/* Spacing: comfortable | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"minimal","testimonials":"stacked","partners":"grid-6","faq":"two-column","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #fbbf24;
    --color-surface: #f5f3ff;
    --color-card: #ffffff;
    --color-text: #1e1b4b;
    --rgb-primary: 109,40,217;
    --rgb-accent: 251,191,36;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-primary), 0.06), 0 10px 20px -8px rgba(30, 27, 75, 0.08);
    --shadow-md: 0 4px 12px rgba(var(--rgb-primary), 0.08), 0 18px 36px -12px rgba(var(--rgb-primary), 0.14);
    --shadow-lg: 0 8px 24px rgba(var(--rgb-primary), 0.1), 0 30px 60px -16px rgba(var(--rgb-primary), 0.2);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.375rem;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
    caret-color: var(--color-primary);
    accent-color: var(--color-primary);
}

/* 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), inset 0 0 0 1px rgba(var(--rgb-primary), 0.06); padding: var(--space-card); transition: var(--transition); background-color: var(--color-card); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fdf4ff; box-shadow: var(--shadow-sm); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: var(--color-accent); }

/* ========== 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; }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; background-color: var(--color-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(var(--rgb-primary), 0.06); transition: var(--transition); }

/* hero: minimal */
.hero { padding: 2rem 0; background: radial-gradient(900px 320px at 85% -10%, rgba(var(--rgb-accent), 0.16), transparent 65%); }
.hero-content { max-width: 560px; }

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

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

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.25rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 2px 12px rgba(var(--rgb-primary), 0.12), 0 8px 24px rgba(var(--rgb-primary), 0.08); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 60%, #1e1b4b 100%); color: #fdf4ff; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12); }

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

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background-color: rgba(245, 243, 255, 0.72); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); }

/* 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; }
}