/* CSSVariantEngine v3.0 — krichedu.com */
/* Palette: cyber-glow | Radius: medium-rounded | Shadow: neon-glow */
/* Spacing: mixed-gap | Transition: smooth-glow */
/* Section layouts: {"news":"masonry-2","features":"grid-4","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"with-sidebar","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #1d4ed8;
    --color-primary-dark: #1e1b4b;
    --color-accent: #06b6d4;
    --color-surface: #0f172a;
    --color-text: #f1f5f9;
    --rgb-primary: 29, 78, 216;
    --rgb-accent: 6, 182, 212;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.25);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6);
    --space-section: 4.8rem;
    --space-card: 2.1rem;
    --space-gap: 1.2rem;
    --transition: 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 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); 
    background-color: rgba(var(--rgb-primary), 0.08);
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition); 
    background-color: #1e293b;
    animation: subtlePulse 4s ease-in-out infinite;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background-color: var(--color-primary);
    color: white;
    border: 1px solid var(--color-accent);
}
a:not([class]) { 
    color: var(--color-accent); 
    transition: var(--transition); 
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.5rem; }

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

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

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 0.5rem; overflow: hidden; animation: partnerScroll 24s 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: 2.1rem; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > div { background-color: #312e81; border-radius: var(--radius-md); padding: 1.5rem; border: 1px solid var(--color-accent); }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); 
    border-radius: var(--radius-xl); 
    padding: 3.2rem; 
    text-align: center; 
    border: 1px solid var(--color-accent);
}

/* 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(-4px); 
    box-shadow: var(--shadow-lg); 
    border-color: var(--color-accent);
}
.card { border: 1px solid var(--color-accent); }
header, .header, .navbar { 
    box-shadow: 0 0 16px rgba(var(--rgb-accent), 0.3); 
    background-color: rgba(var(--color-primary-dark), 0.95);
    backdrop-filter: blur(8px);
}

@keyframes subtlePulse {
    0%, 100% { box-shadow: 0 0 16px rgba(var(--rgb-accent), 0.2); }
    50% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.35); }
}

/* 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: 1.9rem; --space-card: 1.1rem; --space-gap: 0.9rem; }
    .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; }
}