/* CSSVariantEngine v3.0 — wap-xmpandacom.cn */
/* Palette: slate-blue | Radius: rounded | Shadow: layered */
/* Spacing: compact | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"overlay","testimonials":"masonry","partners":"centered","faq":"single-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-accent: #22d3ee;
    --color-surface: #e2e8f0;
    --color-text: #0f172a;
    --rgb-primary: 59,130,246;
    --rgb-accent: 34,211,238;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px -2px rgba(15, 23, 42, 0.12), 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 8px 20px -6px rgba(15, 23, 42, 0.18), 0 4px 8px -4px rgba(59, 130, 246, 0.14), 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px -12px rgba(15, 23, 42, 0.3), 0 10px 24px -8px rgba(59, 130, 246, 0.22), 0 4px 8px rgba(15, 23, 42, 0.06);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.12), transparent 35%),
        radial-gradient(circle at 85% 80%, rgba(34, 211, 238, 0.1), transparent 40%),
        linear-gradient(155deg, #f8fafc 0%, #e2e8f0 50%, #cbd5e1 100%);
    background-attachment: fixed;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 2px 8px rgba(15, 23, 42, 0.08); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background: linear-gradient(180deg, rgba(255,255,255,0.25), rgba(255,255,255,0));
}
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(148, 163, 184, 0.18);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 45%, #1d4ed8 100%);
    color: #f8fafc;
    box-shadow: 0 6px 18px -6px rgba(59, 130, 246, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 4px rgba(59,130,246,0.12); }

/* ========== Section Layout Variants ========== */

/* news: grid-3 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: overlay */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background:
        radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.45), transparent 45%),
        radial-gradient(circle at 80% 70%, rgba(34, 211, 238, 0.3), transparent 40%),
        linear-gradient(135deg, #0f172a 0%, #1e293b 45%, #334155 100%);
    color: #f8fafc;
}
.hero-content { position: relative; z-index: 1; text-shadow: 0 4px 24px rgba(15, 23, 42, 0.35); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.75rem; }

/* 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; }

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(59, 130, 246, 0.35); }
a:not([class]):hover { color: var(--color-accent); }
.card {
    border: 1px solid transparent;
    background:
        linear-gradient(145deg, #ffffff 0%, #f8fafc 100%) padding-box,
        linear-gradient(135deg, rgba(59, 130, 246, 0.5), rgba(34, 211, 238, 0.3), rgba(59, 130, 246, 0.5)) border-box;
}

/* 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: 1.75rem; --space-card: 0.875rem; --space-gap: 0.625rem; }
    .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; }
}