/* CSSVariantEngine v3.0 — hth-entry-portal.com.cn */
/* Palette: ink-brutalist | Radius: sharp | Shadow: hard-offset */
/* Spacing: balanced | Transition: snappy */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"minimal","testimonials":"carousel","partners":"centered","faq":"two-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #3d405b;
    --color-primary-dark: #1d1d2b;
    --color-accent: #e07a5f;
    --color-surface: #f4f1de;
    --color-text: #1d1d2b;
    --color-shadow: #1d1d2b;
    --rgb-primary: 61,64,91;
    --rgb-accent: 224,122,95;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 4px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 0 var(--color-shadow);
    --shadow-md: 4px 4px 0 0 var(--color-shadow);
    --shadow-lg: 6px 6px 0 0 var(--color-shadow);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.15s cubic-bezier(0.2, 0.9, 0.3, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 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); }
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-color: #fff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: var(--color-surface); box-shadow: 0 0 0 2px var(--color-text); }
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); background-color: #f2cc8f; box-shadow: 4px 4px 0 0 var(--color-text); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); background-color: #81b29a; box-shadow: 4px 4px 0 0 var(--color-text); }

/* hero: minimal */
.hero { padding: 2rem 0; background-color: var(--color-accent); color: var(--color-text); box-shadow: 0 0 0 2px var(--color-text); } .hero-content { max-width: 560px; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; background-color: #f2cc8f; box-shadow: 4px 4px 0 0 var(--color-text); } 
.testimonial-list > * { flex: 0 0 100%; }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; background-color: var(--color-accent); box-shadow: 4px 4px 0 0 var(--color-text); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); background-color: var(--color-primary); color: var(--color-surface); box-shadow: 4px 4px 0 0 var(--color-accent); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; background-color: var(--color-primary-dark); color: var(--color-surface); box-shadow: 6px 6px 0 0 #f2cc8f; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background-color: #f2cc8f; box-shadow: 4px 4px 0 0 var(--color-text); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card { border: 1px solid var(--color-text); background-color: #fff; box-shadow: var(--shadow-md); }

/* 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; }
}