/* CSSVariantEngine v3.0 — sc-tengxunsportstv.cn */
/* Palette: pinterest-glow | Radius: medium-rounded | Shadow: accent-glow */
/* Spacing: medium | Transition: gentle-ease */
/* Section layouts: {"news":"grid-4","features":"centered","hero":"minimal","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #d32f2f;
    --color-primary-dark: #b71c1c;
    --color-accent: #ff7043;
    --color-surface: #ffffff;
    --color-text: #2d2d2d;
    --rgb-primary: 211, 47, 47;
    --rgb-accent: 255, 112, 67;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06), 0 0 14px rgba(var(--rgb-accent), 0.15);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.08), 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 4px 18px rgba(0, 0, 0, 0.1), 0 0 32px rgba(var(--rgb-accent), 0.6);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.25rem;
    --transition: 0.35s ease-in-out;
    --heading-weight: 600;
    --body-line-height: 1.75;
}

@keyframes subtle-pulse {
    0%, 100% { box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08), 0 0 24px rgba(var(--rgb-accent), 0.3); }
    50% { box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08), 0 0 28px rgba(var(--rgb-accent), 0.45); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f5f5f7; }
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: var(--color-surface); animation: subtle-pulse 4s infinite ease-in-out; }
.card:hover, [class*="card"]:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; box-shadow: 0 0 16px rgba(var(--rgb-accent), 0.3); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.5); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: 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: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { background: var(--color-surface); border-radius: var(--radius-xl); padding: 3rem; text-align: center; box-shadow: 0 0 30px rgba(var(--rgb-accent), 0.25); }

/* 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 8px rgba(var(--rgb-accent), 0.4); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #ff7043, #d32f2f); }
.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; }
}