/* CSSVariantEngine v3.0 — link6-hth-tiyuapp.com.cn */
/* Palette: ink-blue | Radius: sharp | Shadow: hard-offset */
/* Spacing: tight | Transition: snappy */
/* Section layouts: {"news":"grid-3","features":"grid-3","hero":"overlay","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1e3a8a;
    --color-accent: #f59e0b;
    --color-surface: #fefce8;
    --color-text: #18181b;
    --rgb-primary: 37,99,235;
    --rgb-accent: 245,158,11;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 4px;
    --radius-xl: 6px;
    --shadow-sm: 2px 2px 0px 0px rgba(24,24,27,0.4);
    --shadow-md: 4px 4px 0px 0px rgba(24,24,27,0.6);
    --shadow-lg: 6px 6px 0px 0px rgba(24,24,27,0.8);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 0.8rem;
    --transition: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 600;
    --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); color: var(--color-primary-dark); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: 0 0 0 2px var(--color-text), var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); box-shadow: 0 0 0 2px var(--color-text), 3px 3px 0px 0px var(--color-primary-dark); transition: var(--transition); background-color: var(--color-accent); color: var(--color-text); }
a:not([class]) { color: var(--color-primary); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; 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); background-color: #bfdbfe; box-shadow: 0 0 0 2px var(--color-text); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background-color: #fde68a; box-shadow: 0 0 0 2px var(--color-text); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 55%, var(--color-accent) 100%); box-shadow: 0 4px 0 0 var(--color-text); }
.hero-content { position: relative; z-index: 1; color: #ffffff; text-shadow: 2px 2px 0 rgba(24,24,27,0.5); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); background-color: #dbeafe; box-shadow: 0 0 0 2px var(--color-text); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; background-color: #fef3c7; box-shadow: 0 0 0 2px var(--color-text); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); background-color: #bfdbfe; box-shadow: 0 0 0 2px var(--color-text); }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; background-color: var(--color-primary-dark); box-shadow: 0 4px 0 0 var(--color-text); color: #ffffff; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-color: var(--color-primary); box-shadow: 0 4px 0 0 var(--color-text); color: #ffffff; border-radius: var(--radius-lg); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translate(-2px, -2px); box-shadow: 0 0 0 2px var(--color-text), 8px 8px 0px 0px var(--color-accent); }
a:not([class]):hover { color: var(--color-accent); }

/* 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; }
}