/* CSSVariantEngine v3.0 — sc-newballsports.cn */
/* Palette: teal-violet | Radius: large rounded | Shadow: soft layered */
/* Spacing: mixed tight-loose | Transition: smooth ease */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"split","testimonials":"grid-3","partners":"centered","faq":"single-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0d5d57;
    --color-accent: #8b5cf6;
    --color-surface: #f0fdfa;
    --color-text: #0f172a;
    --rgb-primary: 15, 118, 110;
    --rgb-accent: 139, 92, 246;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 6px rgba(var(--rgb-primary), 0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.05), 0 20px 40px -10px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(var(--rgb-primary), 0.08), 0 24px 60px -12px rgba(var(--rgb-accent), 0.15);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.4s ease;
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f8fafc; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section.news-section { background-color: #ecfdf5; border-bottom: 2px solid rgba(var(--rgb-primary), 0.2); }
section.features-section { background-color: #faf5ff; border-bottom: 2px solid rgba(var(--rgb-accent), 0.2); }
section.hero-section { background-color: #f0fdfa; }
section.testimonials-section { background-color: #fff7ed; border-bottom: 2px solid rgba(249, 115, 22, 0.2); }
section.partners-section { background-color: #f0f9ff; border-bottom: 2px solid rgba(14, 165, 233, 0.2); }
section.faq-section { background-color: #fef3c7; }
section.stats-section { background-color: #e0f2fe; }
section.cta-section { background-color: var(--color-primary); color: #ffffff; }
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: 1px solid rgba(var(--rgb-primary), 0.15); background-color: #ffffff; }
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: 2px solid var(--color-primary); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: var(--color-accent); border-color: var(--color-accent); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; }
a:not([class]):hover { color: var(--color-accent); }

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

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid > * { filter: grayscale(30%); opacity: 0.8; transition: var(--transition); }
.partner-grid > *:hover { filter: grayscale(0%); opacity: 1; }

/* 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: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
header, .header, .navbar { background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(var(--rgb-primary), 0.1); }

/* 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; }
}