/* CSSVariantEngine v3.0 — sc-live-lejingsports.com.cn */
/* Palette: glow-cyan | Radius: medium | Shadow: glow-effects */
/* Spacing: generous | Transition: smooth-glow */
/* Section layouts: {"news":"list-view","features":"grid-2","hero":"minimal","testimonials":"stacked","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #06b6d4;
    --color-surface: #fffbeb;
    --color-text: #1e293b;
    --rgb-primary: 37,99,235;
    --rgb-accent: 6,182,212;
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 2px 8px rgba(6,182,212,0.15);
    --shadow-md: 0 0 24px rgba(6,182,212,0.4);
    --shadow-lg: 0 0 32px rgba(6,182,212,0.6);
    --space-section: 5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(6,182,212,0.3); }
    50% { box-shadow: 0 0 32px rgba(6,182,212,0.5); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #ffffff; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
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: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); animation: pulse-glow 3s ease-in-out infinite; background: var(--color-primary); color: white; border: 1px solid var(--color-accent); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== Alternating Strip Backgrounds ========== */
.hero { background: #ffffff; }
.feature-section { background: var(--color-surface); }
.testimonial-section { background: #0f172a; color: #f8fafc; }
.news-section { background: #ffffff; }
.stats-section { background: var(--color-surface); }
.faq-section { background: #ffffff; }
.partner-section { background: #0f172a; color: #f8fafc; }

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

/* news: list-view */
/* 列表模式 (图左文右) */
.news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
.news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

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

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* 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-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #1e40af 0%, #0f172a 100%); color: #f0f9ff; padding: 5rem 2rem; }

/* 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(-6px); box-shadow: var(--shadow-lg); }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(6,182,212,0.15); }

/* 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: 2.5rem; --space-card: 1.25rem; --space-gap: 0.9rem; }
    .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; }
}