:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a35f42;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 30px;
    --shadow-sm: 0 1px 2px rgba(45,45,45,.05), 0 3px 8px -3px rgba(196,123,90,.14);
    --shadow-md: 0 2px 4px rgba(45,45,45,.04), 0 14px 30px -12px rgba(196,123,90,.22);
    --shadow-lg: 0 4px 10px rgba(45,45,45,.05), 0 28px 56px -18px rgba(196,123,90,.28);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
    --gradient-warm: linear-gradient(160deg, #fffdf9 0%, #faf8f3 44%, #f4efe6 100%);
    --gradient-accent: linear-gradient(135deg, #c47b5a 0%, #b0704f 48%, #87a878 100%);
    --gradient-mist: linear-gradient(180deg, rgba(250,248,243,0) 0%, rgba(135,168,120,.05) 100%);
}

/* 基础覆盖 */
body { background: linear-gradient(180deg, #faf8f3 0%, #fffdf9 36%, #f7f2e9 72%, #f4efe6 100%); color: var(--color-text); line-height: var(--body-line-height); caret-color: var(--color-primary); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.7); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-image: var(--gradient-mist); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: var(--gradient-warm); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: inset 0 1px 0 rgba(255,255,255,.75), 0 10px 22px -12px rgba(196,123,90,.45); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(196,123,90,.45); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

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

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #c47b5a 0%, #b87553 34%, #9c7f6a 68%, #87a878 100%); color: #fffdf9; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(255,255,255,.2), inset 0 -1px 0 rgba(45,45,45,.12), 0 32px 64px -30px rgba(45,45,45,.38); }

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

/* 条件性装饰 */
.card { border: 1px solid rgba(var(--rgb-primary), .14); }
header, .header, .navbar { background: linear-gradient(180deg, rgba(255,253,249,.94) 0%, rgba(250,248,243,.72) 58%, rgba(250,248,243,0) 100%); backdrop-filter: blur(12px) saturate(150%); box-shadow: 0 1px 0 rgba(196,123,90,.10); }

/* 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; }
}