/* CSSVariantEngine v3.0 — intl4-starsports.com.cn */
/* Palette: card-mosaic | Radius: medium | Shadow: glow */
/* Spacing: generous | Transition: playful */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"centered","testimonials":"masonry","partners":"centered","faq":"with-sidebar","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #6d28d9;
    --color-accent: #f59e0b;
    --color-surface: #faf7f2;
    --color-text: #1c1917;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 0 10px rgba(var(--rgb-primary),.18), 0 2px 8px rgba(var(--rgb-primary),.08);
    --shadow-md: 0 0 18px rgba(var(--rgb-accent),.22), 0 4px 14px rgba(var(--rgb-primary),.10);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent),.6), 0 8px 24px rgba(var(--rgb-primary),.18);
    --space-section: 2.25rem;
    --space-card: 1.125rem;
    --space-gap: 0.875rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
    --card-bg: linear-gradient(145deg, #ffffff, #fef3c7);
    --card-glow: 0 0 24px rgba(var(--rgb-accent),.35);
    --card-glow-hover: 0 0 36px rgba(var(--rgb-accent),.65);
}

/* 基础覆盖 */
body { background: var(--color-surface); color: var(--color-text); line-height: var(--body-line-height); }
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(--card-glow, var(--shadow-md)); padding: var(--space-card); transition: var(--transition); background: var(--card-bg, #ffffff); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 12px rgba(var(--rgb-primary),.22); }
a:not([class]) { color: var(--color-primary); text-shadow: 0 0 8px rgba(var(--rgb-primary),.25); transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); --card-bg: linear-gradient(145deg, #fffbeb, #fef3c7); --card-glow: 0 0 24px rgba(245,158,11,.35); --card-glow-hover: 0 0 36px rgba(245,158,11,.65); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); --card-bg: linear-gradient(145deg, #ecfdf5, #d1fae5); --card-glow: 0 0 24px rgba(16,185,129,.35); --card-glow-hover: 0 0 36px rgba(16,185,129,.65); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; text-shadow: 0 0 12px rgba(var(--rgb-accent),.4); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); --card-bg: linear-gradient(145deg, #fdf2f8, #fce7f3); --card-glow: 0 0 24px rgba(236,72,153,.35); --card-glow-hover: 0 0 36px rgba(236,72,153,.65); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); border-radius: var(--radius-lg); box-shadow: var(--card-glow, var(--shadow-md)); transition: var(--transition); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.25rem; --card-bg: linear-gradient(145deg, #eff6ff, #dbeafe); --card-glow: 0 0 24px rgba(59,130,246,.35); --card-glow-hover: 0 0 36px rgba(59,130,246,.65); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2.25rem; --card-bg: linear-gradient(145deg, #f5f3ff, #ede9fe); --card-glow: 0 0 24px rgba(139,92,246,.35); --card-glow-hover: 0 0 36px rgba(139,92,246,.65); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; --card-bg: linear-gradient(145deg, #ecfeff, #cffafe); --card-glow: 0 0 24px rgba(6,182,212,.35); --card-glow-hover: 0 0 36px rgba(6,182,212,.65); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2.25rem; --card-bg: linear-gradient(145deg, #fff7ed, #ffedd5); --card-glow: 0 0 24px rgba(249,115,22,.35); --card-glow-hover: 0 0 36px rgba(249,115,22,.65); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-5px) scale(1.02); box-shadow: var(--card-glow-hover, var(--shadow-lg)); filter: brightness(1.05); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(-45deg, #7c3aed, #d946ef, #f59e0b, #7c3aed); background-size: 300% 300%; animation: mosaicHeroShift 8s ease-in-out infinite; }
header, .header, .navbar { box-shadow: 0 4px 20px rgba(var(--rgb-primary),.15), 0 0 12px rgba(var(--rgb-accent),.08); }

@keyframes mosaicHeroShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 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: 1.875rem; --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; }
}