/* CSSVariantEngine v3.0 — go-igame.org.cn */
/* Palette: bold navy-yellow | Radius: ultra-sharp | Shadow: hard offset */
/* Spacing: wide strip | Transition: snappy */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"left-aligned","testimonials":"grid-3","partners":"grid-4","faq":"with-sidebar","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #1a56db;
    --color-primary-dark: #0f3894;
    --color-accent: #facc15;
    --color-surface: #fffbeb;
    --color-text: #1e293b;
    --rgb-primary: 26, 86, 219;
    --rgb-accent: 250, 204, 21;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px var(--color-primary-dark), 1px 1px 0px rgba(30,41,59,0.2);
    --shadow-md: 4px 4px 0px var(--color-primary-dark), 2px 2px 0px rgba(30,41,59,0.15);
    --shadow-lg: 6px 6px 0px var(--color-primary-dark), 3px 3px 0px rgba(30,41,59,0.1);
    --space-section: 3.75rem;
    --space-card: 1.1rem;
    --space-gap: 0.9rem;
    --transition: 0.15s ease-out;
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 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); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 3px solid var(--color-primary-dark); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
.news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
.news-grid > *:first-child { grid-row: span 2; }

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

/* 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: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

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

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-primary-dark); background: var(--color-accent); padding: 2px 4px; }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(180deg, #1e293b, #0f172a); color: #ffffff; }
.card { border: 3px solid rgba(var(--rgb-primary), 1); background: var(--color-surface); }
header, .header, .navbar { box-shadow: 0 3px 0 0 var(--color-accent); background: #ffffff; }
section:nth-child(even) { background: var(--color-surface); }
section:nth-child(odd):not(.hero):not([class*="hero"]) { background: #ffffff; }

/* 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: 2.2rem; --space-card: 1.1rem; --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; }
}