:root {
    --color-primary: #7c5c3e;
    --color-primary-dark: #2c1810;
    --color-accent: #e8a838;
    --color-surface: #faf6f0;
    --color-text: #1a1208;
    --rgb-primary: 124,92,62;
    --rgb-accent: 232,168,56;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 4px rgba(44,24,16,.04), 0 1px 2px rgba(44,24,16,.03);
    --shadow-md: 0 4px 8px rgba(44,24,16,.05), 0 20px 40px -10px rgba(44,24,16,.12);
    --shadow-lg: 0 6px 12px rgba(44,24,16,.06), 0 32px 64px -16px rgba(44,24,16,.16), 0 2px 4px rgba(44,24,16,.04);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #fffdf9; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-color: #fffdf9; }
section:nth-child(even), .section:nth-child(even) { background-color: #faf6f0; }
section:nth-child(3n), .section:nth-child(3n) { background-color: #2c1810; color: #faf6f0; }
section:nth-child(3n) h1, section:nth-child(3n) h2, section:nth-child(3n) h3, section:nth-child(3n) h4 { color: #faf6f0; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; border: 1px solid rgba(124,92,62,.08); }
.card:hover, [class*="card"]:hover { box-shadow: var(--shadow-lg); border-color: rgba(232,168,56,.25); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: #2c1810; border: none; box-shadow: 0 4px 12px rgba(232,168,56,.3), 0 1px 3px rgba(44,24,16,.1); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: #d4952e; box-shadow: 0 8px 24px rgba(232,168,56,.4), 0 2px 6px rgba(44,24,16,.12); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(232,168,56,.4); }
a:not([class]):hover { color: var(--color-accent); text-decoration-color: var(--color-accent); }

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

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(168deg, #fffdf9 0%, #faf6f0 50%, #f5ede0 100%); } .hero-content { max-width: 560px; }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * { background: linear-gradient(145deg, #ffffff 0%, #faf6f0 100%); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 1.5rem 1rem; border: 1px solid rgba(124,92,62,.06); }

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

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

/* 条件性装饰 */
header, .header, .navbar { background: transparent; backdrop-filter: blur(12px) saturate(1.2); }

/* 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; }
}