:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #2d2d2d;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px rgba(45,45,45,0.22), 0 0 0 1px rgba(196,123,90,0.18);
    --shadow-md: 4px 4px 0px rgba(45,45,45,0.9), 0 0 0 2px rgba(196,123,90,0.28);
    --shadow-lg: 6px 6px 0px rgba(45,45,45,0.96), 0 0 0 2px rgba(135,168,120,0.34);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #faf8f3 0%, #f3eee4 100%); caret-color: var(--color-primary); accent-color: var(--color-accent); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); text-shadow: 1px 1px 0 rgba(250,248,243,0.8); }
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, #fffdf8 0%, #f6f0e6 100%); border: 2px solid rgba(45,45,45,0.88); outline: 1px dashed rgba(196,123,90,0.35); outline-offset: -6px; filter: saturate(1.02) contrast(1.01); opacity: 0.98; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(180deg, #c47b5a 0%, #ae694c 100%); color: #faf8f3; border-color: #2d2d2d; border-style: solid; box-shadow: 4px 4px 0px rgba(45,45,45,0.92), inset 0 0 0 1px rgba(250,248,243,0.18); text-shadow: 1px 1px 0 rgba(45,45,45,0.28); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(135,168,120,0.8); text-shadow: 0 1px 0 rgba(250,248,243,0.7); }

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; background: linear-gradient(135deg, #fffdf8 0%, #f2ebdf 100%); }

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

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

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

/* 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: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 2px 2px 0 rgba(45,45,45,0.14); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; background: linear-gradient(180deg, rgba(250,248,243,0.55) 0%, rgba(243,238,228,0.3) 100%); }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: linear-gradient(180deg, #fffefb 0%, #f0e8da 100%); border-color: rgba(45,45,45,1); outline-color: rgba(135,168,120,0.55); }
.card { border-left: 3px solid var(--color-primary); border-top-color: rgba(45,45,45,0.88); border-right-color: rgba(45,45,45,0.88); border-bottom-color: rgba(45,45,45,0.88); border-style: solid; }

/* 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; }
}