/* CSSVariantEngine v3.0 — go-kaiyuntiyu-qq.com.cn */
/* Palette: teal-amber | Radius: minimal | Shadow: none */
/* Spacing: uniform 24px | Transition: smooth */
/* Section layouts: {"news":"masonry-2","features":"grid-2","hero":"overlay","testimonials":"stacked","partners":"centered","faq":"with-sidebar","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0d605c;
    --color-accent: #f59e0b;
    --color-surface: #f8fafc;
    --color-text: #1e293b;
    --rgb-primary: 15, 118, 110;
    --rgb-accent: 245, 158, 11;
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-xl: 6px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 4.5rem;
    --space-card: 1.8rem;
    --space-gap: 1.5rem;
    --transition: 0.3s ease-in-out;
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #ffffff; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #0f172a; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-color: var(--color-surface); }
.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 #e2e8f0; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: #ffffff; border: 2px solid var(--color-primary); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration: none; border-bottom: 1px solid transparent; }
a:not([class]):hover { border-bottom-color: var(--color-primary); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background-color: #f1f5f9; }
.hero-content { position: relative; z-index: 1; }

/* 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; }
.partner-grid > * { border: 1px solid #e2e8f0; padding: 1rem; border-radius: var(--radius-sm); background-color: #ffffff; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* 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: var(--color-primary); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-color: var(--color-primary); color: #ffffff; padding: 2rem; border-radius: var(--radius-lg); }

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 1400px; margin: 0 auto; padding: 0 1rem; }

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