/* CSSVariantEngine v3.0 — majiangyouxiwang.com.cn */
/* Palette: vibrant bold | Radius: sharp 0-4px | Shadow: hard offset solid */
/* Spacing: medium gap | Transition: snappy 0.15s */
/* Section layouts: {"news":"grid-3","features":"grid-3","hero":"split","testimonials":"masonry","partners":"grid-4","faq":"single-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #165DFF;
    --color-primary-dark: #0A2463;
    --color-accent: #FF3366;
    --color-surface: #F7FFF7;
    --color-text: #1A1A2E;
    --rgb-primary: 22,93,255;
    --rgb-accent: 255,51,102;
    --radius-sm: 0;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px #0A2463;
    --shadow-md: 4px 4px 0px #0A2463;
    --shadow-lg: 6px 6px 0px #0A2463;
    --space-section: 5.1rem;
    --space-card: 2.1rem;
    --space-gap: 1.75rem;
    --transition: 0.15s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 1px 1px 0px rgba(10, 36, 99, 0.1); }
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); border: 3px solid var(--color-primary-dark); background-color: #ffffff; }
.card:hover, [class*="card"]:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0px var(--color-primary-dark); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 3px solid var(--color-primary-dark); background-color: var(--color-accent); color: white; padding: 0.75rem 1.5rem; font-weight: 700; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0px var(--color-primary-dark); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-thickness: 2px; }
a:not([class]):hover { color: var(--color-primary-dark); }

/* ========== 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); }
.news-grid > .post-card:nth-child(3n+1) { background-color: #E8FFE8; }
.news-grid > .post-card:nth-child(3n+2) { background-color: #FFF3CD; }
.news-grid > .post-card:nth-child(3n+3) { background-color: #FFE8F0; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-card:nth-child(1) { background-color: #E0F7FF; }
.feature-card:nth-child(2) { background-color: #F0FFE8; }
.feature-card:nth-child(3) { background-color: #FFF0E0; }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.hero-section { background-color: #ffffff; border-bottom: 3px solid var(--color-primary-dark); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }
.testimonial-card { background-color: #F0F4FF; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }
.partner-item { border: 2px solid var(--color-primary-dark); border-radius: var(--radius-sm); padding: 1rem; background-color: #ffffff; box-shadow: var(--shadow-sm); }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 3px solid var(--color-primary-dark); border-radius: var(--radius-md); background-color: #FFFBF0; margin-bottom: 1.25rem; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stat-card { background-color: #E8F4FF; border: 3px solid var(--color-primary-dark); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #165DFF 0%, #FF3366 100%); color: #fff; padding: 4rem 2rem; border-top: 3px solid #0A2463; border-bottom: 3px solid #0A2463; }
.cta-section h2 { text-shadow: 2px 2px 0px rgba(10, 36, 99, 0.3); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
header, .header, .navbar { background: #ffffff; border-bottom: 2px solid var(--color-primary-dark); backdrop-filter: none; }

/* 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; }
}