:root {
    --color-primary: #6b8f7c;
    --color-primary-dark: #2c4a3a;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 135,168,120;
    --rgb-accent: 196,123,90;
    --radius-sm: 10px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 6px 14px rgba(var(--rgb-primary), .10);
    --shadow-md: 0 10px 28px rgba(45,45,45,.10), 0 2px 0 rgba(135,168,120,.08);
    --shadow-lg: 0 14px 42px rgba(45,45,45,.12), 0 0 0 1px rgba(135,168,120,.10), 0 0 28px rgba(var(--rgb-accent),.18);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 260ms cubic-bezier(.2,.9,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.65;
    --glow-accent: rgba(var(--rgb-accent), .45);
    --glow-accent-strong: rgba(var(--rgb-accent), .65);
}

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-lg); box-shadow: var(--shadow-md), 0 0 0 1px rgba(135,168,120,.10); 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: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition); }
a:not([class]) { color: #2c4a3a; transition: color var(--transition), text-shadow var(--transition); text-shadow: 0 1px 0 rgba(0,0,0,.06); }

.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: 0 16px 50px rgba(45,45,45,.14), 0 0 0 1px rgba(var(--rgb-accent),.18), 0 0 32px var(--glow-accent); animation: cardHalo 1200ms ease-in-out both; }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 18px rgba(var(--rgb-accent),.35); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(1200px circle at 20% 10%, rgba(135,168,120,.28) 0%, rgba(250,248,243,0) 45%), radial-gradient(900px circle at 80% 30%, rgba(196,123,90,.22) 0%, rgba(250,248,243,0) 50%), linear-gradient(135deg, #faf8f3 0%, rgba(135,168,120,.35) 40%, rgba(196,123,90,.28) 100%); }
.card { border: 1px solid rgba(var(--rgb-accent), .10); }

@keyframes cardHalo {
    0% { filter: saturate(1) brightness(1); }
    45% { filter: saturate(1.08) brightness(1.01); }
    100% { filter: saturate(1) brightness(1); }
}

/* ========== 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: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

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

/* 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; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* 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; }

/* 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; }
}