/* CSSVariantEngine v3.0 — sdlanjia.com */
/* Palette: lush forest | Radius: soft rounded | Shadow: pillowy airy */
/* Spacing: generous | Transition: fluid slow */
/* Section layouts: {"news":"featured-left","features":"centered","hero":"split","testimonials":"stacked","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #2d6a4f;
    --color-primary-dark: #1b4332;
    --color-accent: #f72585;
    --color-surface: #f8f9fa;
    --color-text: #1e293b;
    --rgb-primary: 45, 106, 79;
    --rgb-accent: 247, 37, 133;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    --shadow-sm: 0 4px 12px rgba(var(--rgb-primary), 0.08);
    --shadow-md: 0 12px 28px rgba(var(--rgb-primary), 0.12), 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 24px 52px rgba(var(--rgb-primary), 0.16), 0 4px 16px rgba(0, 0, 0, 0.06);
    --space-section: 5rem;
    --space-card: 2.5rem;
    --space-gap: 2rem;
    --transition: 0.45s cubic-bezier(0.25, 1, 0.5, 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: 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"] { background-color: #ffffff; border-radius: var(--radius-lg); box-shadow: inset 0 1px 0 rgba(255,255,255, 0.9), var(--shadow-md); padding: var(--space-card); transition: var(--transition); border: 1px solid rgba(var(--rgb-primary), 0.06); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); color: white; border: none; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: linear-gradient(145deg, #ffffff 0%, #f0fff4 100%); }

/* 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: 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: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 28s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card:nth-child(1) { background: linear-gradient(145deg, #e8f5e9 0%, #ffffff 100%); }
.stats-grid .card:nth-child(2) { background: linear-gradient(145deg, #fff3e0 0%, #ffffff 100%); }
.stats-grid .card:nth-child(3) { background: linear-gradient(145deg, #e3f2fd 0%, #ffffff 100%); }
.stats-grid .card:nth-child(4) { background: linear-gradient(145deg, #fce4ec 0%, #ffffff 100%); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #40916c 100%); color: #fff; padding: 4rem 2rem; text-shadow: 0 1px 3px rgba(0,0,0,0.15); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: inset 0 1px 0 rgba(255,255,255, 0.9), var(--shadow-lg); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 4px solid var(--color-accent); }

/* 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; }
}