/* CSSVariantEngine v3.0 — SohuSports.cn */
/* Palette: gradient-rich asymmetric | Radius: dynamic rounded | Shadow: multi-layer vibrant */
/* Spacing: mixed tight/loose | Transition: long smooth */
/* Section layouts: {"news":"grid-4","features":"grid-4","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4f46e5;
    --color-accent: #ec4899;
    --color-surface: linear-gradient(135deg, #fdf4ff 0%, #f0f9ff 100%);
    --color-text: #0f172a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 236,72,153;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 8px rgba(124,58,237,.12), 0 1px 3px rgba(236,72,153,.08);
    --shadow-md: 0 4px 16px rgba(124,58,237,.15), 0 2px 6px rgba(236,72,153,.1), 0 1px 2px rgba(15,23,42,.05);
    --shadow-lg: 0 12px 32px rgba(124,58,237,.18), 0 6px 20px rgba(236,72,153,.12), 0 3px 8px rgba(15,23,42,.08);
    --space-section: 3.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(180deg, #f8fafc 0%, #fdf4ff 50%, #fef3c7 100%);
}
h1, h2, h3, h4 { 
    font-weight: var(--heading-weight); 
    background: linear-gradient(90deg, #4f46e5 0%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
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: linear-gradient(135deg, #ffffff 0%, #f0f9ff 40%, #fdf4ff 100%);
    border: 3px solid transparent;
    border-image: linear-gradient(135deg, #7c3aed, #ec4899, #f59e0b) 1;
}
.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: linear-gradient(90deg, #7c3aed 0%, #ec4899 100%);
    color: white;
    border: 2px solid transparent;
    border-image: linear-gradient(90deg, #f59e0b, #ec4899, #7c3aed) 1;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration-thickness: 2px;
    text-decoration-color: #ec4899;
}
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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

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

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 25s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 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: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
header, .header, .navbar { 
    box-shadow: 0 4px 16px rgba(124,58,237,.1), 0 2px 8px rgba(236,72,153,.06); 
    background: linear-gradient(90deg, #f8fafc 0%, #fdf4ff 100%);
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, #7c3aed, #ec4899, #f59e0b) 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; }
}