/* CSSVariantEngine v3.0 — baolongdianjing.com.cn */
/* Palette: vibrant mosaic | Radius: sharp | Shadow: hard offset */
/* Spacing: medium | Transition: snappy 0.15s */
/* Section layouts: {"news":"featured-left","features":"grid-3","hero":"left-aligned","testimonials":"carousel","partners":"scroll","faq":"with-sidebar","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #facc15;
    --color-surface: #f8fafc;
    --color-text: #0f172a;
    --rgb-primary: 14,165,233;
    --rgb-accent: 250,204,21;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px #0f172a;
    --shadow-md: 4px 4px 0px #0f172a;
    --shadow-lg: 6px 6px 0px rgba(15, 23, 42, 0.9);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1.2rem;
    --transition: 0.15s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 600;
    --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: 3px solid var(--color-text); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; }
.card:hover, [class*="card"]:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.btn, button[class*="btn"], a[class*="btn"] { border: 2px solid var(--color-text); border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: var(--color-text); font-weight: 600; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-sm); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration: underline; text-underline-offset: 2px; }

/* ========== 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); }
                .news-grid > *:first-child { grid-row: span 2; background-color: #f0f9ff; border-color: var(--color-primary); }
                .news-grid > *:nth-child(2) { background-color: #fef3c7; border-color: #f59e0b; }
                .news-grid > *:nth-child(3) { background-color: #fdf4ff; border-color: #a855f7; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list > *:nth-child(1) { background-color: #ecfeff; border-color: #06b6d4; }
.feature-list > *:nth-child(2) { background-color: #f0fdf4; border-color: #22c55e; }
.feature-list > *:nth-child(3) { background-color: #fff1f2; border-color: #f43f5e; }

/* 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%; background-color: #faf5ff; border-color: #9333ea; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
                .faq-wrapper > *:last-child { background-color: #fef2f2; border-color: #ef4444; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > *:nth-child(1) { background-color: #eff6ff; border-color: #3b82f6; }
.stats-grid > *:nth-child(2) { background-color: #f8fafc; border-color: #64748b; }
.stats-grid > *:nth-child(3) { background-color: #f0fdfa; border-color: #14b8a6; }

/* cta: full-bg */
.cta-section { background: linear-gradient(90deg, #8b5cf6, #ec4899); color: #fff; padding: 4rem 2rem; border-top: 3px solid var(--color-text); border-bottom: 3px solid var(--color-text); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0ea5e9 0%, #8b5cf6 50%, #ec4899 100%); color: white; }
header, .header, .navbar { background-color: white; border-bottom: 3px solid var(--color-text); box-shadow: 3px 3px 0px #0f172a; }

/* 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; }
}