:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #8a4f32;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(45,45,45,0.04), 0 8px 16px -6px rgba(45,45,45,0.08);
    --shadow-md: 0 4px 8px rgba(45,45,45,0.05), 0 20px 40px -10px rgba(45,45,45,0.12);
    --shadow-lg: 0 8px 16px rgba(45,45,45,0.06), 0 30px 60px -12px rgba(45,45,45,0.18);
    --space-section: 3rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
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); }
.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(196,123,90,0.08); }
.card:hover, [class*="card"]:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: #ffffff; box-shadow: 0 4px 8px rgba(196,123,90,0.2), 0 12px 24px -8px rgba(196,123,90,0.3); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: var(--color-primary-dark); box-shadow: 0 6px 12px rgba(196,123,90,0.25), 0 16px 32px -8px rgba(196,123,90,0.35); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(196,123,90,0.3); }
a:not([class]):hover { color: var(--color-primary-dark); text-decoration-color: var(--color-primary-dark); }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }
                .news-grid > *:first-child .card { box-shadow: 0 6px 12px rgba(45,45,45,0.06), 0 24px 48px -12px rgba(196,123,90,0.15); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }
.feature-list .card { border-left: 4px solid var(--color-accent); background: linear-gradient(145deg, #ffffff 0%, #faf8f3 100%); }

/* 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); }
                .testimonial-list .card { background: #ffffff; border: 1px solid rgba(135,168,120,0.15); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid > * { filter: grayscale(30%); opacity: 0.8; transition: var(--transition); }
.partner-grid > *:hover { filter: grayscale(0%); opacity: 1; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
                .faq-wrapper .card { border-left: 3px solid var(--color-accent); }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid .card { background: transparent; box-shadow: none; border: none; text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #c47b5a 0%, #8a4f32 100%); color: #fff; padding: 4rem 2rem; box-shadow: inset 0 2px 8px rgba(0,0,0,0.1); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #c47b5a 0%, #8a4f32 55%, #2d2d2d 100%); color: #ffffff; }
.hero h1, [class*="hero"] h1, section:first-of-type h1, .hero h2, [class*="hero"] h2, section:first-of-type h2 { color: #ffffff; text-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { box-shadow: 0 2px 8px rgba(45,45,45,0.05), 0 8px 24px -6px rgba(45,45,45,0.08); background-color: rgba(250,248,243,0.92); backdrop-filter: blur(12px); }

/* 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; }
}