/* CSSVariantEngine v3.0 — bapetco.com */
/* Palette: deep-navy-gradient | Radius: soft-rounded | Shadow: multi-layer colored */
/* Spacing: comfortable | Transition: smooth-long */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"centered","testimonials":"carousel","partners":"scroll","faq":"two-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #06b6d4;
    --color-surface: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --color-text: #1e293b;
    --rgb-primary: 37, 99, 235;
    --rgb-accent: 6, 182, 212;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 3px 10px rgba(37, 46, 58, 0.15), 0 1px 3px rgba(6, 182, 212, 0.08);
    --shadow-md: 0 8px 24px rgba(37, 46, 58, 0.18), 0 3px 8px rgba(6, 182, 212, 0.1);
    --shadow-lg: 0 16px 48px rgba(37, 46, 58, 0.22), 0 6px 16px rgba(6, 182, 212, 0.12);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 600;
    --body-line-height: 1.75;
    --caret-color: var(--color-accent);
    --accent-color: var(--color-primary);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 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%, #f8fafc 100%); border: 2px solid transparent; border-image: linear-gradient(135deg, #3b82f6, #06b6d4, #252e3a) 1; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-accent) 100%); color: #ffffff; border: 1px solid rgba(255,255,255,0.2); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); background: linear-gradient(180deg, transparent 62%, rgba(var(--rgb-accent), 0.35) 62%); }

/* ========== 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: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* 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: 2rem; overflow: hidden; animation: partnerScroll 22s 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: var(--space-gap); }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-image: linear-gradient(225deg, #3b82f6, #06b6d4, #252e3a) 1; }
.card { border-image-slice: 1; }
header, .header, .navbar { background: linear-gradient(90deg, #252e3a 0%, #334155 100%); backdrop-filter: blur(8px); }

/* 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; }
}