/* CSSVariantEngine v3.0 — play-huohu-yule.com.cn */
/* Palette: teal-cyan | Radius: medium | Shadow: glow */
/* Spacing: tight | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"left-aligned","testimonials":"stacked","partners":"centered","faq":"single-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #0e7490;
    --color-primary-dark: #155e75;
    --color-accent: #22d3ee;
    --color-surface: #ecfeff;
    --color-text: #0f2a33;
    --rgb-primary: 14,116,144;
    --rgb-accent: 34,211,238;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 0 12px rgba(34,211,238,.22), 0 2px 4px rgba(14,116,144,.10);
    --shadow-md: 0 0 20px rgba(34,211,238,.32), 0 4px 10px rgba(14,116,144,.14);
    --shadow-lg: 0 0 36px rgba(34,211,238,.42), 0 8px 20px rgba(14,116,144,.18);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); }
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); }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(34,211,238,.55), 0 6px 16px rgba(14,116,144,.20); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 24px rgba(34,211,238,.5); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: var(--color-primary); color: #ecfeff; padding: 4rem 2rem; box-shadow: inset 0 0 80px rgba(34,211,238,.25); }

/* 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, #0e7490, #155e75 55%, #0c4a5e); box-shadow: 0 0 48px rgba(34,211,238,.30) inset; }
header, .header, .navbar { box-shadow: 0 2px 16px rgba(34,211,238,.22), 0 1px 4px rgba(14,116,144,.10); }

/* 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; }
}