:root {
    --color-primary: #1f7a5c;
    --color-primary-dark: #14523d;
    --color-accent: #e8a06d;
    --color-surface: #f7f6f2;
    --color-text: #1d2b25;
    --rgb-primary: 31,122,92;
    --rgb-accent: 232,160,109;
    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --shadow-sm: 0 1px 2px rgba(27,43,37,0.05), 0 3px 12px rgba(var(--rgb-primary),0.06);
    --shadow-md: 0 2px 4px rgba(27,43,37,0.04), 0 10px 28px rgba(var(--rgb-primary),0.09);
    --shadow-lg: 0 6px 12px rgba(27,43,37,0.05), 0 20px 48px rgba(var(--rgb-primary),0.12);
    --space-section: 2.4rem;
    --space-card: 1.1rem;
    --space-gap: 0.9rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
    accent-color: var(--color-primary);
    caret-color: var(--color-primary);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at 10% 20%, rgba(var(--rgb-primary),0.06), transparent 40%), radial-gradient(circle at 90% 10%, rgba(var(--rgb-accent),0.07), transparent 35%), linear-gradient(180deg, #fbfaf7 0%, var(--color-surface) 100%); }
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-md); padding: var(--space-card); transition: var(--transition); border: 1px solid rgba(var(--rgb-primary),0.08); background: linear-gradient(180deg, #fff 0%, #fefdfb 100%) padding-box, linear-gradient(150deg, rgba(var(--rgb-primary),0.4), rgba(var(--rgb-accent),0.28) 50%, rgba(var(--rgb-primary),0.12)) border-box; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; box-shadow: var(--shadow-sm); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-accent),0.6); }

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

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2.2rem; overflow: hidden; animation: partnerScroll 24s 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: 2.2rem; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3.2rem; }

/* cta: card-style */
.cta-inner { background: linear-gradient(135deg, var(--color-surface) 0%, #fff 55%, rgba(var(--rgb-accent),0.14) 100%); border-radius: var(--radius-xl); padding: 2.8rem; text-align: center; }

/* 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(-6px); box-shadow: var(--shadow-lg), 0 6px 20px rgba(var(--rgb-accent),0.16); }
.card { border: 1px solid rgba(var(--rgb-primary),0.08); border-top-color: rgba(var(--rgb-accent),0.7); background: linear-gradient(180deg, #fff 0%, #fefdfb 100%) padding-box, linear-gradient(150deg, rgba(var(--rgb-primary),0.4), rgba(var(--rgb-accent),0.28) 50%, rgba(var(--rgb-primary),0.12)) border-box; }
header, .header, .navbar { box-shadow: 0 1px 2px rgba(27,43,37,0.05), 0 10px 28px rgba(27,43,37,0.06); background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.76)); backdrop-filter: blur(8px); }

/* 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: 1.8rem; --space-card: 0.9rem; --space-gap: 0.7rem; }
    .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; }
}