/* CSSVariantEngine v3.0 — web5-strarsports.com.cn */
/* Palette: teal-amber | Radius: rounded-soft | Shadow: layered-tinted */
/* Spacing: spacious | Transition: smooth-long */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"centered","testimonials":"grid-3","partners":"centered","faq":"single-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #f59e0b;
    --color-surface: #f0fdfa;
    --color-text: #134e4a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(13,148,136,.12), 0 1px 1px rgba(13,148,136,.08);
    --shadow-md: 0 6px 18px rgba(13,148,136,.15), 0 2px 6px rgba(13,148,136,.10), 0 0 0 1px rgba(13,148,136,.05);
    --shadow-lg: 0 18px 40px -12px rgba(13,148,136,.28), 0 8px 20px -8px rgba(13,148,136,.18), 0 0 0 1px rgba(13,148,136,.06);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.6rem;
    --transition: 0.48s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at 20% 20%, rgba(13,148,136,.08), transparent 40%), radial-gradient(circle at 80% 0%, rgba(245,158,11,.08), transparent 35%), linear-gradient(135deg, #f0fdfa 0%, #ffffff 50%, #f0fdfa 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); text-shadow: 0 1px 1px rgba(255,255,255,.9); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(240,253,250,0) 0%, rgba(13,148,136,.03) 50%, rgba(240,253,250,0) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #ffffff 0%, #f0fdfa 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #ffffff; border-color: transparent; box-shadow: 0 4px 12px rgba(13,148,136,.25); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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); background: radial-gradient(circle at 10% 10%, rgba(13,148,136,.04), transparent 60%); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); background: linear-gradient(90deg, rgba(240,253,250,0) 0%, rgba(13,148,136,.03) 50%, rgba(240,253,250,0) 100%); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; background: radial-gradient(circle at 50% 0%, rgba(13,148,136,.12), transparent 70%); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: radial-gradient(circle at 90% 90%, rgba(245,158,11,.05), transparent 60%); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.8rem; background: linear-gradient(180deg, rgba(240,253,250,0) 0%, rgba(13,148,136,.02) 100%); }

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 2.6rem; background: radial-gradient(circle at 50% 50%, rgba(13,148,136,.04), transparent 70%); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: linear-gradient(135deg, rgba(13,148,136,.05) 0%, rgba(245,158,11,.05) 100%); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.card { border-left: 3px solid var(--color-primary); border-image: linear-gradient(180deg, #14b8a6 0%, #06b6d4 50%, #f59e0b 100%) 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; }
}