:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #8f4c34;
    --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: 0px;
    --radius-xl: 1px;
    --shadow-sm: 4px 4px 0px rgba(45,45,45,.22), 0px 1px 0px rgba(45,45,45,.08);
    --shadow-md: 4px 4px 0px rgba(45,45,45,.28), 0px 2px 0px rgba(45,45,45,.10), 8px 10px 18px rgba(45,45,45,.10);
    --shadow-lg: 4px 4px 0px rgba(45,45,45,.32), 0px 3px 0px rgba(45,45,45,.12), 14px 20px 30px rgba(45,45,45,.10);
    --space-section: 3.5rem;
    --space-card: 1.15rem;
    --space-gap: 1.25rem;
    --transition: 0.15s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.62;

    --page-bg: #faf8f3;
    --card-border: rgba(45,45,45,.18);
    --card-highlight: rgba(196,123,90,.35);
    --focus-ring: rgba(135,168,120,.55);
    --text-soft: rgba(45,45,45,.86);
}

body { 
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: var(--page-bg);
    caret-color: var(--color-primary-dark);
    accent-color: var(--color-accent);
}
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: 
        4px 4px 0px rgba(45,45,45,.30),
        0px 1px 0px rgba(45,45,45,.14),
        10px 14px 24px rgba(45,45,45,.10);
    padding: var(--space-card); 
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background-color var(--transition);
    border: 2px solid var(--card-border);
    background: linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.92) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition); 
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: color var(--transition), text-shadow var(--transition), filter var(--transition);
    text-shadow: 0px 1px 0px rgba(45,45,45,.10);
}

a:not([class]):hover { 
    color: var(--color-accent); 
    text-shadow: 2px 2px 0px rgba(45,45,45,.12);
    filter: saturate(1.05);
}
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(110deg, rgba(196,123,90,1) 0%, rgba(143,76,52,1) 55%, rgba(135,168,120,.9) 100%);
    border-bottom: 3px solid rgba(45,45,45,.18);
}

.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* ========== 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); }

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

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

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 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: 2.75rem; --space-card: 1.05rem; --space-gap: 1rem; }
    .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; }
}