/* CSSVariantEngine v3.0 — int-kaiyuntiyu.com.cn */
/* Palette: teal-slate | Radius: tiny | Shadow: subtle */
/* Spacing: tight | Transition: snappy */
/* Section layouts: {"news":"grid-4","features":"grid-4","hero":"split","testimonials":"stacked","partners":"centered","faq":"single-column","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #2dd4bf;
    --color-surface: #f8fafc;
    --color-text: #0f172a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 45,212,193;
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 5px;
    --radius-xl: 6px;
    --shadow-sm: 0 1px 2px rgba(15,23,42,.07);
    --shadow-md: 0 2px 5px rgba(15,23,42,.09);
    --shadow-lg: 0 5px 10px rgba(15,23,42,.11);
    --space-section: 2.4rem;
    --space-card: 0.95rem;
    --space-gap: 0.75rem;
    --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
    caret-color: var(--color-primary);
    accent-color: var(--color-primary);
}

/* 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); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; border: 1px solid #e2e8f0; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border-color: var(--color-primary); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-underline-offset: 3px; }

/* ========== 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); color: #ffffff; padding: 4rem 2rem; }

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

/* 条件性装饰 */
header, .header, .navbar { background: #ffffffcc; backdrop-filter: blur(6px); border-bottom: 1px solid #e2e8f0; }

/* 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: 0.85rem; --space-gap: 0.65rem; }
    .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; }
}