/* CSSVariantEngine v3.0 — zh-im.sx.cn */
/* Palette: asymmetric-teal | Radius: tight-small | Shadow: subtle */
/* Spacing: compact | Transition: snappy */
/* Section layouts: {"news":"featured-left","features":"centered","hero":"left-aligned","testimonials":"masonry","partners":"scroll","faq":"with-sidebar","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #115e59;
    --color-accent: #ef4444;
    --color-surface: #f0fdfa;
    --color-text: #0f172a;
    --rgb-primary: 13, 148, 136;
    --rgb-accent: 239, 68, 68;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 5px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 2px 3px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 2px 4px rgba(15, 23, 42, 0.07);
    --space-section: 2.4rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.15s ease-out;
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 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); color: var(--color-primary-dark); }
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); border: 1px solid var(--color-primary-dark); background: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: 1px solid var(--color-primary-dark); }
a:not([class]) { color: var(--color-primary-dark); transition: var(--transition); text-decoration: underline; }

/* ========== 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; background: #e0f2fe; border: 1px solid #0284c7; }

/* features: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.faq-wrapper > *:last-child { background: #fef2f2; border: 1px solid #dc2626; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * { background: #ecfccb; border: 1px solid #65a30d; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: #fef3c7; border: 1px solid #d97706; padding: 1rem; border-radius: var(--radius-xl); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.card { border-left: 2px solid var(--color-accent); }
header, .header, .navbar { background: #ccfbf1; border-bottom: 1px solid var(--color-primary-dark); }

/* 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: 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; }
}