/* CSSVariantEngine v3.0 — zh-zh-aoke.com.cn */
/* Palette: bold citrus | Radius: sharp | Shadow: hard offset */
/* Spacing: mixed tight-loose | Transition: snappy */
/* Section layouts: {"news":"featured-top","features":"grid-3","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #1e293b;
    --color-primary-dark: #0f172a;
    --color-accent: #f97316;
    --color-surface: #fffbeb;
    --color-text: #020617;
    --rgb-primary: 30,41,59;
    --rgb-accent: 249,115,22;
    --radius-sm: 1px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px #0f172a;
    --shadow-md: 4px 4px 0px #0f172a;
    --shadow-lg: 6px 6px 0px #0f172a;
    --space-section: 2.5rem;
    --space-card: 1.25rem;
    --space-gap: 0.5rem;
    --transition: 0.15s ease;
    --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); }
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: 2px solid var(--color-primary); background-color: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 3px solid var(--color-primary); background-color: var(--color-accent); color: white; }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }
.news-section { background-color: #ecfccb; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.features-section { background-color: #ecfeff; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.testimonials-section { background-color: #fef3c7; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2.5rem; overflow: hidden; animation: partnerScroll 16s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.partners-section { background-color: #f8fafc; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.faq-section { background-color: #f0fdf4; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-section { background-color: #fef2f2; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2.5rem; background-color: var(--color-accent); border: 3px solid var(--color-primary); box-shadow: var(--shadow-md); padding: 2rem; }
.cta-section { background-color: #ffedd5; }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
a:not([class]):hover { color: var(--color-primary-dark); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #f97316, #dc2626); color: white; }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { box-shadow: 3px 3px 0px rgba(15,23,42,0.2); background-color: white; border-bottom: 2px solid var(--color-primary); }

/* 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; }
}