/* CSSVariantEngine v3.0 — official-leyu-online.com.cn */
/* Palette: horizontal-strips | Radius: sharp | Shadow: hard-offset */
/* Spacing: balanced | Transition: snappy */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"overlay","testimonials":"stacked","partners":"centered","faq":"two-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #be123c;
    --color-primary-dark: #881337;
    --color-accent: #f59e0b;
    --color-surface: #fef3c7;
    --color-text: #1c1917;
    --rgb-primary: 190,18,60;
    --rgb-accent: 245,158,11;
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 2px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 0 #44403c;
    --shadow-md: 4px 4px 0 0 #44403c, 0 0 0 3px #1c1917;
    --shadow-lg: 6px 6px 0 0 #292524, 0 0 0 4px #1c1917;
    --space-section: 3.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.125rem;
    --transition: 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #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); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background-color: #1c1917; }
                .hero-content { position: relative; z-index: 1; color: #ffffff; }

/* 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: 2rem; }

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

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

/* cta: full-bg */
.cta-section { background: linear-gradient(145deg, #be123c, #881337); color: #fff; padding: 4rem 2rem; box-shadow: inset 0 0 0 3px #fef3c7; }

/* 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-accent); }
.card { border: 1px solid #1c1917; }
header, .header, .navbar { box-shadow: 0 4px 0 0 #44403c; }

/* Horizontal strips: alternating section backgrounds */
:where(section:nth-of-type(odd), .section:nth-of-type(odd)) { background-color: #ffffff; }
:where(section:nth-of-type(even), .section:nth-of-type(even)) { background-color: #fef3c7; }

/* 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: 2.25rem; --space-card: 1.125rem; --space-gap: 0.875rem; }
    .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; }
}