/* CSSVariantEngine v3.0 — yatoudianjing.org.cn */
/* Palette: gradient-rich mosaic | Radius: playful rounded | Shadow: multi-color elevation */
/* Spacing: medium gap | Transition: smooth long easing */
/* Section layouts: {"news":"featured-top","features":"horizontal","hero":"split","testimonials":"stacked","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f97316;
    --color-surface: linear-gradient(135deg, #fef7ff 0%, #f5f3ff 100%);
    --color-text: #1e1b4b;
    --rgb-primary: 124,58,237;
    --rgb-accent: 249,115,22;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(124,58,237,0.1), 0 2px 4px -1px rgba(249,115,22,0.06);
    --shadow-md: 0 10px 25px -3px rgba(124,58,237,0.15), 0 4px 12px -2px rgba(249,115,22,0.1);
    --shadow-lg: 0 25px 50px -12px rgba(124,58,237,0.25), 0 12px 24px -6px rgba(249,115,22,0.15);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1.75rem;
    --transition: 0.55s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #faf7ff 0%, #fff7ed 100%); }
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: linear-gradient(145deg, #ffffff 0%, #fdfaff 100%); border: 2px solid transparent; border-image: linear-gradient(135deg, #7c3aed, #f97316, #ec4899) 1 stretch; }
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); color: white; border: none; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { filter: brightness(1.1); box-shadow: 0 8px 20px rgba(var(--rgb-primary), 0.3); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); background-image: linear-gradient(transparent 90%, #f97316 90%); background-size: 100% 100%; background-position: 0 0; background-repeat: no-repeat; }
a:not([class]):hover { background-size: 100% 100%; color: var(--color-accent); }

/* ========== 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; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > div { background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%); border-radius: var(--radius-lg); padding: var(--space-card); }

/* cta: card-style */
.cta-inner { background: linear-gradient(135deg, #7c3aed 0%, #a855f7 40%, #f97316 100%); border-radius: var(--radius-xl); padding: 3rem; text-align: center; color: white; box-shadow: var(--shadow-lg); }

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

/* 条件性装饰 */
header, .header, .navbar { box-shadow: 0 3px 12px rgba(124,58,237,0.08), 0 1px 4px rgba(249,115,22,0.04); background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); }

/* 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: 1.1rem; }
    .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; }
}