/* CSSVariantEngine v3.0 — ch7-le-yu.com.cn */
/* Palette: violet-orange | Radius: asymmetric | Shadow: multi-layer */
/* Spacing: spacious | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"overlay","testimonials":"masonry","partners":"centered","faq":"single-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #8b5cf6;
    --color-primary-dark: #5b21b6;
    --color-accent: #f97316;
    --color-surface: #faf5ff;
    --color-text: #1e1b4b;
    --rgb-primary: 139,92,246;
    --rgb-accent: 249,115,22;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(139,92,246,0.12), 0 2px 4px rgba(139,92,246,0.08);
    --shadow-md: 0 4px 6px -1px rgba(139,92,246,0.15), 0 10px 15px -3px rgba(139,92,246,0.1), 0 0 0 1px rgba(139,92,246,0.05);
    --shadow-lg: 0 20px 25px -5px rgba(139,92,246,0.2), 0 10px 10px -5px rgba(139,92,246,0.1), 0 0 0 1px rgba(139,92,246,0.08);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, #ffffff 0%, #fdf4ff 100%); }
.card, [class*="card"] { border-radius: 20px 4px 20px 4px; box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #ffffff, #fdf4ff); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: 16px 4px 16px 4px; transition: var(--transition); box-shadow: 0 2px 4px rgba(139,92,246,0.15); }
a:not([class]) { color: var(--color-primary); 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: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%); border-radius: 28px 8px 28px 8px; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 50%, #f9a8d4 100%); border-radius: 28px 8px 28px 8px; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; background: linear-gradient(145deg, #ffffff, #fdf4ff); border-radius: 20px 4px 20px 4px; box-shadow: var(--shadow-sm); }

/* 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, #1e1b4b 0%, #312e81 50%, #4338ca 100%); color: #f8fafc; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 50%, #bbf7d0 100%); border-radius: 28px 8px 28px 8px; }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); background: linear-gradient(145deg, #ffffff, #fdf4ff); border-radius: 20px 4px 20px 4px; box-shadow: var(--shadow-sm); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 50%, #fed7aa 100%); border-radius: 28px 8px 28px 8px; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 50%, #ddd6fe 100%); border-radius: 24px 6px 24px 6px; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 50%, #fecaca 100%); border-radius: 24px 6px 24px 6px; }

/* cta: card-style */
.cta-inner { background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 50%, #e9d5ff 100%); border-radius: 28px 8px 28px 8px; padding: 3rem; text-align: center; 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 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: 0 25px 30px -10px rgba(139,92,246,0.3), 0 15px 20px -10px rgba(249,115,22,0.2), 0 0 0 1px rgba(139,92,246,0.1); filter: brightness(1.03); }
.card { border: 1px solid transparent; background: linear-gradient(145deg, #ffffff, #fdf4ff) padding-box, linear-gradient(135deg, #8b5cf6, #f97316, #ec4899) border-box; }
header, .header, .navbar { box-shadow: 0 4px 20px rgba(139,92,246,0.15), 0 0 0 1px rgba(139,92,246,0.08); background: linear-gradient(90deg, #fdf4ff 0%, #fae8ff 50%, #f5d0fe 100%); }

/* 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; }
}