/* CSSVariantEngine v3.0 — zh-huyalive.com.cn */
/* Palette: gradient-vibrant | Radius: soft-rounded | Shadow: multi-layered */
/* Spacing: asymmetric | Transition: long-smooth */
/* Section layouts: {"news":"list-view","features":"grid-3","hero":"minimal","testimonials":"masonry","partners":"grid-6","faq":"with-sidebar","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #6366f1;
    --color-primary-dark: #4338ca;
    --color-accent: #10b981;
    --color-surface: #f0fdfa;
    --color-text: #0f172a;
    --rgb-primary: 99,102,241;
    --rgb-accent: 16,185,129;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 6px rgba(99,102,241,0.08), 0 1px 2px rgba(16,185,129,0.05);
    --shadow-md: 0 8px 16px rgba(99,102,241,0.12), 0 4px 8px rgba(16,185,129,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 16px 32px rgba(99,102,241,0.18), 0 8px 16px rgba(16,185,129,0.12), 0 4px 8px rgba(0,0,0,0.06);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(180deg, #f0fdfa 0%, #eef2ff 100%) no-repeat fixed;
}
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); 
    border: 3px solid transparent;
    border-image: linear-gradient(135deg, #6366f1 0%, #10b981 50%, #f59e0b 100%) 1 stretch;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    border: 2px solid transparent;
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration-thickness: 2px;
    text-decoration-color: var(--color-accent);
}

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

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

/* hero: minimal */
.hero { 
    padding: 2rem 0; 
    background: radial-gradient(circle at top left, rgba(99,102,241,0.1) 0%, transparent 60%), 
                radial-gradient(circle at bottom right, rgba(16,185,129,0.1) 0%, transparent 60%);
} 
.hero-content { max-width: 560px; }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-4 */
.stats-grid { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: var(--space-gap); 
    text-align: center; 
}
.stats-grid .card {
    background: linear-gradient(180deg, rgba(99,102,241,0.08) 0%, rgba(16,185,129,0.08) 100%);
}

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 35%, #10b981 70%, #f59e0b 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: white;
    box-shadow: var(--shadow-lg);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-6px) scale(1.01); 
    box-shadow: var(--shadow-lg); 
    filter: brightness(1.03);
}
a:not([class]):hover { color: var(--color-accent); }
header, .header, .navbar { 
    box-shadow: 0 4px 12px rgba(99,102,241,0.1), 0 2px 4px rgba(16,185,129,0.06); 
    background: linear-gradient(90deg, #ffffff 0%, #f8fafc 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; }
}