:root {
    --color-primary: #6b705c;
    --color-primary-dark: #1a1a1a;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 6px;
    --radius-xl: 10px;
    --shadow-sm: 0 1px 0 rgba(26,26,26,.10);
    --shadow-md: 0 2px 0 rgba(26,26,26,.06), 0 8px 18px rgba(26,26,26,.08);
    --shadow-lg: 0 1px 0 rgba(26,26,26,.10), 0 10px 26px rgba(26,26,26,.12), 0 2px 6px rgba(26,26,26,.08);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 420ms cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
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:
        0 1px 0 rgba(26,26,26,.08),
        0 10px 30px rgba(26,26,26,.10),
        inset 0 1px 0 rgba(245,241,232,.85);
    padding: var(--space-card);
    transition: var(--transition);
    background: rgba(245,241,232,.96);
}
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: 380ms cubic-bezier(.16,1,.3,1); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 0 rgba(0,0,0,0); }

a:not([class]):hover { color: var(--color-accent); text-shadow: 0 8px 18px rgba(196,69,54,.22); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 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: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); filter: saturate(1.02) contrast(1.02); } 100% { transform: translateX(-50%); filter: saturate(1.02) contrast(1.02); } }

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

/* 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: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 12% 20%, rgba(196,69,54,.22), rgba(196,69,54,0) 55%),
        radial-gradient(700px 360px at 82% 30%, rgba(107,112,92,.26), rgba(107,112,92,0) 58%),
        linear-gradient(135deg, #f5f1e8 0%, #efe8d9 32%, #f5f1e8 65%, #e9e1cc 100%);
    border-bottom: 1px solid rgba(26,26,26,.08);
}
header, .header, .navbar { background: transparent; }

/* 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; }

    .card, [class*="card"] {
        box-shadow:
            0 1px 0 rgba(26,26,26,.08),
            0 10px 22px rgba(26,26,26,.10);
        border-radius: 6px;
    }
}