:/* CSSVariantEngine v3.0 — gb-ofc-kaiyun.com */
/* Palette: slate-teal | Radius: generous | Shadow: multi-layer soft */
/* Spacing: comfortable | Transition: smooth */
/* Section layouts: {"news":"featured-left","features":"grid-3","hero":"left-aligned","testimonials":"grid-3","partners":"centered","faq":"two-column","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #134e4a;
    --color-accent: #5eead4;
    --color-surface: #f0fdfa;
    --color-text: #134e4a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 94,234,212;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(13,148,136,0.08), 0 6px 16px -4px rgba(13,148,136,0.10);
    --shadow-md: 0 4px 8px rgba(19,78,74,0.05), 0 20px 40px -10px rgba(19,78,74,0.12);
    --shadow-lg: 0 8px 12px rgba(19,78,74,0.06), 0 30px 60px -12px rgba(19,78,74,0.18);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f0fdfa; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #134e4a; }
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-color: #ffffff; border: 1px solid rgba(13,148,136,0.08); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 2px 6px rgba(13,148,136,0.15); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(13,148,136,0.3); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
.news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
.news-grid > *:first-child { grid-row: span 2; }

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

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

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

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

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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: #0d9488; text-shadow: 0 2px 12px rgba(13,148,136,0.2); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-decoration-color: rgba(94,234,212,0.6); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f766e 0%, #134e4a 50%, #042f2e 100%); }

.card:hover, [class*="card"]:hover { box-shadow: 0 8px 12px rgba(19,78,74,0.06), 0 30px 60px -12px rgba(13,148,136,0.25); transform: translateY(-2px); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 4px 12px rgba(13,148,136,0.25), 0 12px 24px -6px rgba(13,148,136,0.15); }

/* 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; }
}