/* CSSVariantEngine v3.0 — jinnianhuitiyu.sx.cn */
/* Palette: bold-contrasting | Radius: large-rounded | Shadow: soft-multi-layer */
/* Spacing: mixed-tight-loose | Transition: smooth-ease */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"left-aligned","testimonials":"carousel","partners":"scroll","faq":"two-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-accent: #f97316;
    --color-surface: #fef3c7;
    --color-text: #0f172a;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 4px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.05), 0 20px 40px -10px rgba(0,0,0,0.12);
    --shadow-lg: 0 6px 12px rgba(0,0,0,0.06), 0 24px 48px -12px rgba(0,0,0,0.15);
    --space-section: 3.2rem;
    --space-card: 1.5rem;
    --space-gap: 0.8rem;
    --transition: 0.4s ease;
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f8fafc; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
section.hero, .section.hero { background-color: rgba(14, 165, 233, 0.08); border-bottom: 3px solid rgba(14, 165, 233, 0.25); }
section.features, .section.features { background-color: rgba(249, 115, 22, 0.07); border-bottom: 3px solid rgba(249, 115, 22, 0.2); }
section.testimonials, .section.testimonials { background-color: rgba(16, 185, 129, 0.07); border-bottom: 3px solid rgba(16, 185, 129, 0.2); }
section.partners, .section.partners { background-color: rgba(139, 92, 246, 0.06); border-bottom: 3px solid rgba(139, 92, 246, 0.18); }
section.faq, .section.faq { background-color: rgba(239, 68, 68, 0.06); border-bottom: 3px solid rgba(239, 68, 68, 0.18); }
section.stats, .section.stats { background-color: rgba(20, 184, 166, 0.07); border-bottom: 3px solid rgba(20, 184, 166, 0.2); }
section.cta, .section.cta { background-color: #0f172a; color: #f8fafc; border-radius: var(--radius-xl); margin: 2rem 0; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); border: 2px solid rgba(var(--rgb-primary), 0.15); background-color: white; }
.card:hover, [class*="card"]:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(var(--rgb-accent), 0.3); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: 2px solid var(--color-primary); padding: 0.75rem 1.75rem; font-weight: 600; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: var(--color-accent); border-color: var(--color-accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); font-weight: 500; }

/* ========== 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: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: 2.5rem; max-width: 720px; margin: 0 auto; }

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

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2.5rem; overflow: hidden; animation: partnerScroll 24s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2.2rem; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3.5rem; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
header, .header, .navbar { background: rgba(255,255,255,0.85); backdrop-filter: blur(14px); border-bottom: 2px solid rgba(var(--rgb-primary), 0.1); }

/* 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; }
}