/* CSSVariantEngine v3.0 — int-shenshimanhua.com.cn */
/* Palette: deep-sidebar-glow | Radius: soft-rounded | Shadow: neon-halo */
/* Spacing: airy | Transition: smooth-glow */
/* Section layouts: {"news":"masonry-2","features":"grid-3","hero":"minimal","testimonials":"masonry","partners":"grid-4","faq":"single-column","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #252e3a;
    --color-primary-dark: #1a2029;
    --color-accent: #38bdf8;
    --color-surface: #f0f4f8;
    --color-text: #1e293b;
    --rgb-primary: 37, 46, 58;
    --rgb-accent: 56, 189, 248;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 2px 8px rgba(56, 189, 248, 0.12);
    --shadow-md: 0 4px 16px rgba(56, 189, 248, 0.18), 0 0 24px rgba(56, 189, 248, 0.4);
    --shadow-lg: 0 8px 24px rgba(56, 189, 248, 0.25), 0 0 32px rgba(56, 189, 248, 0.6);
    --space-section: 3rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.6s ease-in-out;
    --heading-weight: 800;
    --body-line-height: 1.6;
}

@keyframes subtle-pulse {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 4px 16px rgba(56, 189, 248, 0.22), 0 0 28px rgba(56, 189, 248, 0.5); }
}

/* 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); text-shadow: 0 1px 2px rgba(0, 0, 0, 0.06); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; }
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: var(--color-primary-dark); animation: subtle-pulse 3s infinite ease-in-out; border: none; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: var(--shadow-lg); filter: brightness(1.1); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }
a:not([class]):hover { color: #0ea5e9; text-shadow: 0 0 8px rgba(56, 189, 248, 0.5); }

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

/* hero: minimal */
.hero { padding: 2rem 0; } .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-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; color: var(--color-accent); text-shadow: 0 0 16px rgba(56, 189, 248, 0.4); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #252e3a, #164e63); color: #fff; padding: 4rem 2rem; box-shadow: 0 0 40px rgba(56, 189, 248, 0.2) inset; }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #252e3a, #1e40af); box-shadow: 0 0 60px rgba(56, 189, 248, 0.15) inset; }
.card { border: 1px solid rgba(var(--rgb-accent), 0.15); }

/* 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; }
}