/* CSSVariantEngine v3.0 — sc-qiutansports.cn */
/* Palette: neon-pop | Radius: ultra-sharp | Shadow: hard-offset */
/* Spacing: mixed tight | Transition: snappy-fast */
/* Section layouts: {"news":"featured-top","features":"grid-2","hero":"centered","testimonials":"grid-3","partners":"grid-6","faq":"two-column","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #ff1744;
    --color-primary-dark: #d50000;
    --color-accent: #00e5ff;
    --color-surface: #ffea00;
    --color-text: #0d0d0d;
    --rgb-primary: 255, 23, 68;
    --rgb-accent: 0, 229, 255;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 #000000;
    --shadow-md: 4px 4px 0 var(--color-primary);
    --shadow-lg: 6px 6px 0 var(--color-accent);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 0.5rem;
    --transition: 0.15s cubic-bezier(0.25, 0.1, 0.25, 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-color: #fafafa;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
    border-bottom: 3px solid var(--color-primary-dark);
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition);
    background-color: #ffffff;
    border: 2px solid var(--color-text);
}
.card:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-lg);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    border: 3px solid var(--color-text);
    background-color: var(--color-accent);
    color: var(--color-text);
    font-weight: 600;
}
.btn:hover {
    background-color: var(--color-primary);
    color: #ffffff;
    transform: translate(-2px, -2px);
    box-shadow: 3px 3px 0 #000000;
}
a:not([class]) { 
    color: var(--color-primary-dark); 
    transition: var(--transition);
    text-decoration: none;
    border-bottom: 2px solid var(--color-accent);
}
a:not([class]):hover {
    background-color: var(--color-surface);
}

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

/* news: featured-top */
/* 首篇横跨全宽 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.news-grid > *:first-child { grid-column: span 3; background-color: var(--color-surface); border: 3px solid var(--color-text); }

/* 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; }
.hero-inner { background-color: var(--color-accent); border: 3px solid var(--color-text); }

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

/* 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: 2.2rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary-dark); }
.stats-grid .stat-item { background-color: var(--color-surface); border: 3px solid var(--color-text); padding: 1.5rem; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-color: var(--color-primary); color: #ffffff; border: 3px solid var(--color-text); padding: 2rem; }

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

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-accent); }

/* 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; }
}