/* CSSVariantEngine v3.0 — int-k1sports.sx.cn */
/* Palette: royal-navy | Radius: sharp-edges | Shadow: hard-offset */
/* Spacing: uniform-24px | Transition: snappy-150ms */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"centered","testimonials":"carousel","partners":"grid-6","faq":"single-column","stats":"grid-4","cta":"centered"} */

:root {
    --color-primary: #1d4ed8;
    --color-primary-dark: #1e3a8a;
    --color-accent: #f97316;
    --color-surface: #f8fafc;
    --color-text: #0f172a;
    --rgb-primary: 29, 78, 216;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 0;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 3px 3px 0px #0f172a;
    --shadow-md: 5px 5px 0px #1e293b;
    --shadow-lg: 7px 7px 0px #020617;
    --space-section: 2.25rem;
    --space-card: 1.1rem;
    --space-gap: 1.5rem;
    --transition: 0.15s cubic-bezier(0.2, 0.9, 0.3, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
    --accent-color: var(--color-accent);
    --caret-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); text-shadow: 1px 1px 0px rgba(29,78,216,0.15); }
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); border: 3px solid var(--color-primary); background-color: white; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 2px solid var(--color-primary-dark); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); outline-color: var(--color-accent); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

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

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

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

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* 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 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 2px rgba(249,115,22,0.3); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #1d4ed8, #1e3a8a); }
.card:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0px #0f172a; }

/* 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; }
}