/* CSSVariantEngine v3.0 — zone-aisports.com.cn */
/* Palette: ember | Radius: rounded | Shadow: layered */
/* Spacing: balanced | Transition: slow-smooth */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"centered","testimonials":"stacked","partners":"centered","faq":"two-column","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #c2410c;
    --color-primary-dark: #7c2d12;
    --color-accent: #f59e0b;
    --color-surface: #fef3c7;
    --color-text: #3b1d0f;
    --rgb-primary: 194,65,12;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 4px rgba(124,45,18,.06), 0 1px 2px rgba(194,65,12,.04);
    --shadow-md: 0 8px 20px rgba(124,45,18,.09), 0 2px 6px rgba(194,65,12,.06);
    --shadow-lg: 0 18px 36px rgba(124,45,18,.16), 0 6px 14px rgba(194,65,12,.10);
    --space-section: 3.25rem;
    --space-card: 1.375rem;
    --space-gap: 1.125rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
    accent-color: var(--color-accent);
    caret-color: var(--color-primary);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #fffdf7 0%, var(--color-surface) 100%);
}
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: linear-gradient(135deg, #fffdf5 0%, var(--color-surface) 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: #fffdf8;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
}
a:not([class]) { color: var(--color-primary); 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); }

/* features: horizontal */
/* 水平滚动 */
.feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.25rem; }

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

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3.25rem; }

/* cta: full-bg */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 55%, #5b1e0a 100%);
    color: #fffdf8;
    padding: 4rem 2rem;
    text-shadow: 0 1px 3px rgba(59,29,15,.25);
}

/* 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(-4px); box-shadow: var(--shadow-lg); }
a:not([class]):hover { color: var(--color-accent); }
.card {
    border: 1px solid transparent;
    background:
        linear-gradient(135deg, #fffdf5 0%, var(--color-surface) 100%) padding-box,
        linear-gradient(135deg, rgba(var(--rgb-accent), .55) 0%, rgba(var(--rgb-primary), .4) 100%) border-box;
}
header, .header, .navbar {
    box-shadow: 0 2px 10px rgba(var(--rgb-primary), .14), 0 1px 3px rgba(var(--rgb-accent), .08);
    background: linear-gradient(180deg, rgba(255,253,248,.95) 0%, rgba(254,243,199,.88) 100%);
}

/* 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; }
}