:root {
    --color-primary: #6b705c;
    --color-primary-dark: #4f5642;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(0,0,0,.06), 0 1px 0 rgba(255,255,255,.35);
    --shadow-md: 0 6px 14px rgba(0,0,0,.06), 0 22px 46px -18px rgba(0,0,0,.16);
    --shadow-lg: 0 10px 26px rgba(0,0,0,.08), 0 34px 70px -28px rgba(0,0,0,.18);
    --space-section: 3.75rem;
    --space-card: 1.35rem;
    --space-gap: 1.1rem;
    --transition: 0.38s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 600;
    --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: var(--shadow-md); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-thickness: 1px; text-underline-offset: 3px; }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* 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: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 55%, #2a2d25 100%); color: #fbf8f2; padding: 4rem 2rem; }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-5px); box-shadow: 0 10px 26px rgba(0,0,0,.08), 0 36px 80px -40px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.45); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(1200px 600px at 20% 10%, rgba(196,69,54,.18) 0%, rgba(196,69,54,0) 55%), radial-gradient(1000px 520px at 85% 25%, rgba(107,112,92,.25) 0%, rgba(107,112,92,0) 58%), linear-gradient(135deg, #f5f1e8 0%, #efe9db 22%, #f5f1e8 48%, rgba(196,69,54,.10) 100%); }
.card { border: 1px solid rgba(var(--rgb-accent), .10); background-clip: padding-box; }

/* 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: 2.2rem; --space-card: 1.05rem; --space-gap: 0.85rem; --radius-sm: 10px; --radius-md: 16px; --radius-lg: 20px; --radius-xl: 24px; --transition: 0.32s cubic-bezier(0.2, 0.8, 0.2, 1); }
    .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; }
}