:/* CSSVariantEngine v3.0 — cnc-kaiyun-play.com */
/* Palette: coastal-sunset | Radius: rounded | Shadow: layered */
/* Spacing: airy | Transition: smooth */
/* Section layouts: {"news":"featured-top","features":"horizontal","hero":"centered","testimonials":"stacked","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0e7490;
    --color-primary-dark: #164e63;
    --color-accent: #f59e0b;
    --color-surface: #ecfeff;
    --color-text: #083344;
    --rgb-primary: 14,116,144;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 12px rgba(var(--rgb-primary),.08), 0 1px 3px rgba(var(--rgb-primary),.04);
    --shadow-md: 0 6px 24px rgba(var(--rgb-primary),.10), 0 2px 8px rgba(var(--rgb-primary),.06);
    --shadow-lg: 0 12px 48px rgba(var(--rgb-primary),.12), 0 4px 16px rgba(var(--rgb-primary),.08);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #ffffff 0%, var(--color-surface) 100%); }
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: rgba(255,255,255,.9); backdrop-filter: blur(8px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); box-shadow: 0 2px 12px rgba(var(--rgb-primary),.15); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 4px 20px rgba(var(--rgb-primary),.25); transform: translateY(-1px); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: transparent; text-underline-offset: 4px; }
a:not([class]):hover { text-decoration-color: var(--color-accent); }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; border-left: none; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: var(--color-primary) transparent; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; border-top: 3px solid var(--color-accent); }

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

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

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

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary)); color: #fff; padding: 4rem 2rem; box-shadow: inset 0 0 60px rgba(255,255,255,.05); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: transparent; }

/* 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; }
}