/* CSSVariantEngine v3.0 — int-youzhibosports.com.cn */
/* Palette: slate-blue | Radius: soft-rounded | Shadow: soft-multi-layer */
/* Spacing: moderate | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"horizontal","hero":"centered","testimonials":"grid-3","partners":"scroll","faq":"with-sidebar","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #1e6af5;
    --color-primary-dark: #0f47ad;
    --color-accent: #8ab4f8;
    --color-surface: #f7f9fc;
    --color-text: #1e293b;
    --rgb-primary: 30, 106, 245;
    --rgb-accent: 138, 180, 248;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(30, 106, 245, 0.07);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.05), 0 16px 32px -12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.06), 0 24px 48px -12px rgba(0, 0, 0, 0.14);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 0.9rem;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { background-color: #f0f4f8; color: var(--color-text); line-height: var(--body-line-height); caret-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 3px rgba(30, 106, 245, 0.05); }
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-color: white; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* 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; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

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

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 24s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 1fr 320px; gap: 2rem; }
                .faq-wrapper > aside { background-color: #252e3a; color: #e2e8f0; border-radius: var(--radius-xl); padding: 1.5rem; }

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card { border: 1px solid rgba(37, 46, 58, .1); }
header, .header, .navbar { box-shadow: 0 3px 12px rgba(37, 46, 58, 0.08), 0 6px 20px rgba(37, 46, 58, 0.04); background-color: white; backdrop-filter: blur(8px); }

/* 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; }
}