:root {
    --color-primary: #6b705c;
    --color-primary-dark: #4f5442;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 3px 8px rgba(26,26,26,.05), 0 1px 2px rgba(107,112,92,.08);
    --shadow-md: 0 8px 18px rgba(26,26,26,.06), 0 24px 44px -18px rgba(26,26,26,.14), 0 2px 6px rgba(196,69,54,.06);
    --shadow-lg: 0 14px 28px rgba(26,26,26,.08), 0 32px 56px -20px rgba(26,26,26,.18), 0 4px 12px rgba(107,112,92,.12);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.38s ease;
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #f7f3ea; caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.65); }
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(180deg, rgba(255,252,246,.96) 0%, rgba(245,241,232,.98) 100%); border-color: rgba(107,112,92,.22); border-style: solid; backdrop-filter: blur(4px); filter: saturate(1.02); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(180deg, #c44536 0%, #a5372a 100%); color: #fdf8f0; border-color: rgba(79,84,66,.28); border-style: solid; box-shadow: 0 6px 16px rgba(196,69,54,.2), 0 2px 4px rgba(26,26,26,.08); text-shadow: 0 1px 1px rgba(0,0,0,.16); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(107,112,92,.45); }

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

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

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); opacity: .96; filter: saturate(1); } 100% { transform: translateX(-50%); opacity: 1; filter: saturate(1.04); } }

/* 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: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 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(-4px); box-shadow: var(--shadow-lg); filter: saturate(1.06); }
a:not([class]):hover { color: var(--color-accent); text-decoration-color: rgba(196,69,54,.55); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #f0e7d8 0%, #e7dcc8 42%, #d9cab2 100%); color: #1a1a1a; }
.card { border-left: 3px solid var(--color-primary); outline: 1px dashed rgba(196,69,54,.16); outline-color: rgba(196,69,54,.16); outline-offset: -1px; }

/* 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; }
}