:root {
    --color-primary: #5b6b4f;
    --color-primary-dark: #2d2d2d;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 91,107,79;
    --rgb-accent: 135,168,120;
    --radius-sm: 10px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.06), 0 10px 24px rgba(45,45,45,.05);
    --shadow-md: 0 4px 10px rgba(45,45,45,.08), 0 22px 46px -18px rgba(45,45,45,.18);
    --shadow-lg: 0 10px 24px rgba(45,45,45,.10), 0 30px 70px -22px rgba(45,45,45,.20);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.35s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.75;
    --color-stroke: rgba(45,45,45,.10);
    --color-overlay: rgba(250,248,243,.92);
    --color-hero-edge: rgba(135,168,120,.22);
}

body { color: var(--color-text); line-height: var(--body-line-height); background: 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-xl); box-shadow: 0 4px 8px rgba(0,0,0,0.05), 0 20px 40px -10px rgba(0,0,0,0.12), 0 1px 0 rgba(250,248,243,.65) inset; padding: var(--space-card); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 0 rgba(250,248,243,.7); }

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

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* 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: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(1200px 520px at 20% 10%, rgba(135,168,120,.34) 0%, rgba(135,168,120,.12) 28%, rgba(250,248,243,0) 58%), linear-gradient(135deg, #faf8f3 0%, #2d2d2d 48%, #2d2d2d 100%); }
.card { border: 1px solid rgba(var(--rgb-primary), .14); }
.card, [class*="card"] { background: rgba(250,248,243,.90); }
.card { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

@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; }
}