:root {
    --color-primary: #c44536;
    --color-primary-dark: #8f2f24;
    --color-accent: #6b705c;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 107,112,92;
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-xl: 10px;
    --shadow-sm: 0 1px 2px rgba(26,26,26,.08), 0 3px 8px -2px rgba(196,69,54,.06);
    --shadow-md: 0 6px 18px -6px rgba(26,26,26,.18), 0 2px 5px rgba(107,112,92,.10);
    --shadow-lg: 0 22px 44px -14px rgba(26,26,26,.24), 0 8px 18px -6px rgba(196,69,54,.14);
    --space-section: 5rem;
    --space-card: 2.25rem;
    --space-gap: 1.5rem;
    --transition: 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #faf7ef 0%, #f5f1e8 55%, #efe9dc 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #1a1a1a; }
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); padding: var(--space-card); transition: var(--transition); background: linear-gradient(168deg, #fdfbf6 0%, #f5f1e8 62%, #eee7d9 100%); border: 1px solid rgba(107,112,92,.16); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #c44536 0%, #a83a2c 55%, #8f2f24 100%); color: #f5f1e8; box-shadow: 0 6px 16px -6px rgba(196,69,54,.55); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: 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; color: #f7f3ea; text-shadow: 0 2px 12px rgba(26,26,26,.45); }

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: card-style */
.cta-inner { background: linear-gradient(155deg, #f5f1e8 0%, #ece5d7 45%, #e4dcc9 78%, #efe5d3 100%); border-radius: var(--radius-xl); padding: 3rem; text-align: center; box-shadow: 0 24px 48px -20px rgba(26,26,26,.28), inset 0 0 0 1px rgba(196,69,54,.18); }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #1a1a1a 0%, #241f1c 38%, #4a3b34 68%, #c44536 100%); }
header, .header, .navbar { box-shadow: 0 2px 14px -4px rgba(26,26,26,.16), 0 1px 0 rgba(196,69,54,.20); background: linear-gradient(90deg, #faf7ef 0%, #f5f1e8 50%, #f0ead9 100%); }

/* 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; }
}