/* CSSVariantEngine v3.0 — huath-pc9.com.cn */
/* Palette: mosaic-violet | Radius: tight | Shadow: crisp */
/* Spacing: compact | Transition: snappy */
/* Section layouts: {"news":"featured-left","features":"grid-3","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"two-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #4c1d95;
    --color-primary-dark: #3b0764;
    --color-accent: #e11d48;
    --color-surface: #faf5ff;
    --color-text: #1e1b4b;
    --rgb-primary: 76,29,149;
    --rgb-accent: 225,29,72;
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-xl: 8px;
    --shadow-sm: 0 1px 2px rgba(30,27,75,.05), 0 1px 3px rgba(var(--rgb-primary), .06);
    --shadow-md: 0 2px 4px rgba(30,27,75,.04), 0 6px 16px rgba(var(--rgb-primary), .08), 0 0 0 1px rgba(var(--rgb-primary), .03);
    --shadow-lg: 0 4px 8px rgba(30,27,75,.05), 0 12px 28px rgba(var(--rgb-primary), .10), 0 0 0 1px rgba(var(--rgb-primary), .04);
    --space-section: 4.5rem;
    --space-card: 1.6rem;
    --space-gap: 1.3rem;
    --transition: 0.3s cubic-bezier(0.33, 0, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
    accent-color: var(--color-accent);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    caret-color: var(--color-accent);
    background:
        radial-gradient(60rem 30rem at 85% -5%, rgba(var(--rgb-accent), 0.07), transparent 60%),
        radial-gradient(50rem 25rem at 0% 0%, rgba(var(--rgb-primary), 0.08), transparent 55%),
        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: 0 2px 8px rgba(var(--card-accent, var(--rgb-accent)), 0.08), var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    background: #fff;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
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);
    --card-accent: 225,29,72;
}
.news-grid > *:first-child { grid-row: span 2; }

/* features: grid-3 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
    --card-accent: 14,165,233;
}

/* hero: centered */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    --card-accent: 99,102,241;
}

/* testimonials: masonry */
.testimonial-list {
    column-count: 2;
    column-gap: var(--space-gap);
    --card-accent: 245,158,11;
}
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid {
    display: flex;
    gap: 1.75rem;
    overflow: hidden;
    animation: partnerScroll 22s linear infinite;
    --card-accent: 16,185,129;
}
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-gap);
    --card-accent: 139,92,246;
}

/* stats: grid-3 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
    text-align: center;
    --card-accent: 249,115,22;
}

/* cta: split */
.cta-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 1.75rem;
    --card-accent: 236,72,153;
}

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

/* 条件性装饰 */
.card { border-left: 3px solid rgb(var(--card-accent, var(--rgb-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: 1.8rem; --space-card: 0.9rem; --space-gap: 0.7rem; }
    .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; }
}