:root {
    --color-primary: #6b705c;
    --color-primary-dark: #4a503d;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #f5f1e8 0%, #ece5d7 100%); min-height: 100vh; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #2b2b2b; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(135deg, rgba(245,241,232,0.6), rgba(236,229,215,0.8)); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #faf7f0, #ede7d9); border: 1px solid rgba(107,112,92,0.15); border-image: linear-gradient(135deg, #6b705c, #c44536) 1; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(145deg, #6b705c, #4a503d); color: #f5f1e8; border: none; box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-color: rgba(196,69,54,0.3); }

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

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

/* features: horizontal */
                .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: overlay */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(145deg, #4a503d, #6b705c, #c44536); }
                .hero-content { position: relative; z-index: 1; }

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

/* partners: scroll */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: full-width */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: linear-gradient(145deg, #f7f2e8, #e7dfce); }
a:not([class]):hover { color: var(--color-primary); text-decoration-color: var(--color-primary); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(145deg, #4a503d, #6b705c, #c44536); }
header, .header, .navbar { box-shadow: 0 2px 8px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04); background: linear-gradient(180deg, #f5f1e8, #ece5d7); }

/* 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; }
}