/* CSSVariantEngine v3.0 — huoniaodianjing.org.cn */
/* Palette: ocean-gradient | Radius: soft-rounded | Shadow: multi-layer harmonious */
/* Spacing: symmetric 24px gap | Transition: smooth long curve */
/* Section layouts: {"news":"masonry-2","features":"centered","hero":"split","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #10b981;
    --color-surface: linear-gradient(135deg, #f0f9ff 0%, #ecfdf5 100%);
    --color-text: #0f172a;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 16, 185, 129;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 5px rgba(14, 165, 233, 0.08), 0 1px 3px rgba(16, 185, 129, 0.05);
    --shadow-md: 0 7px 14px rgba(14, 165, 233, 0.11), 0 3px 7px rgba(16, 185, 129, 0.07);
    --shadow-lg: 0 15px 30px rgba(14, 165, 233, 0.14), 0 7px 15px rgba(16, 185, 129, 0.09);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: 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-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    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, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: masonry-2 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: centered */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: with-sidebar */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: big-number */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { 
    font-size: 3rem; 
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); 
    -webkit-background-clip: text; 
    background-clip: text; 
    color: transparent; 
}

/* cta: full-bg */
.cta-section { 
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary-dark) 100%); 
    color: #fff; 
    padding: 4rem 2rem; 
}

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.3); }
.card { 
    border: 1px solid transparent; 
    border-image: linear-gradient(135deg, rgba(14,165,233,0.18) 0%, rgba(16,185,129,0.18) 100%) 1; 
}
header, .header, .navbar { 
    box-shadow: 0 3px 12px rgba(14,165,233,0.09), 0 1px 4px rgba(16,185,129,0.05); 
    background: linear-gradient(90deg, #ffffff 0%, #f0f9ff 100%); 
}

/* 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; }
}