:root {
    --color-primary: #87a878;
    --color-primary-dark: #5f7354;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 135,168,120;
    --rgb-accent: 196,123,90;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 4px 10px rgba(45,45,45,.05), 0 14px 28px -14px rgba(95,115,84,.18);
    --shadow-md: 0 8px 18px rgba(45,45,45,.06), 0 24px 46px -16px rgba(95,115,84,.16);
    --shadow-lg: 0 14px 28px rgba(45,45,45,.08), 0 34px 60px -18px rgba(196,123,90,.22);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.42s cubic-bezier(.22,.61,.36,1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #faf8f3 0%, #f4efe5 100%); caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #342f2a; text-shadow: 0 1px 0 rgba(255,255,255,.72); }
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(255,255,255,.9) 0%, rgba(250,248,243,.98) 100%); backdrop-filter: blur(8px); filter: saturate(1.02); opacity: .98; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(180deg, #f6f0e7 0%, #ece3d5 100%); color: #3b352f; border-color: rgba(196,123,90,.28); border-style: solid; box-shadow: 0 4px 12px rgba(45,45,45,.05), 0 16px 30px -18px rgba(196,123,90,.3); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-primary), .38); text-shadow: 0 1px 0 rgba(255,255,255,.65); }

/* ========== 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

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

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s ease-in-out infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 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, #87a878 0%, #6f8863 52%, #c47b5a 100%); color: #fffaf3; padding: 4rem 2rem; text-shadow: 0 2px 10px rgba(45,45,45,.18); box-shadow: inset 0 1px 0 rgba(255,255,255,.16), 0 22px 44px -24px rgba(45,45,45,.28); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; 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(var(--rgb-accent), .5); }
.card { border: 1px dashed rgba(var(--rgb-primary), .22); outline: 1px solid rgba(196,123,90,.08); outline-color: rgba(196,123,90,.12); }

/* 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; }
}