:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #8e4c34;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.05), 0 6px 18px rgba(196,123,90,.10);
    --shadow-md: 0 2px 0 rgba(45,45,45,.04), 0 10px 28px rgba(45,45,45,.08), 0 0 0 1px rgba(135,168,120,.08);
    --shadow-lg: 0 2px 0 rgba(45,45,45,.04), 0 18px 44px rgba(45,45,45,.12), 0 0 32px rgba(135,168,120,.20);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.28s cubic-bezier(.2,.9,.2,1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

body { color: var(--color-text); line-height: var(--body-line-height); }
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:
        0 1px 0 rgba(45,45,45,.04),
        0 10px 26px rgba(45,45,45,.08),
        0 0 0 1px rgba(var(--rgb-accent), .12);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background-color var(--transition), filter var(--transition);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
}
a:not([class]) {
    color: var(--color-primary);
    transition: color var(--transition), filter var(--transition), text-shadow var(--transition);
    text-decoration: none;
    text-shadow: 0 0 0 rgba(0,0,0,0);
}

:root { caret-color: var(--color-accent); accent-color: var(--color-accent); }

.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 44px rgba(45,45,45,.12),
        0 0 0 1px rgba(var(--rgb-accent), .18),
        0 0 32px rgba(var(--rgb-accent), .28);
    border-color: rgba(var(--rgb-accent), .30);
    filter: saturate(1.04);
    animation: cardGlowPulse 1.7s ease-in-out infinite;
}
a:not([class]):hover {
    color: var(--color-accent);
    filter: brightness(1.02);
    text-shadow: 0 0 18px rgba(var(--rgb-accent), .35);
}

.card { border: 1px solid rgba(var(--rgb-primary), .10); }

header, .header, .navbar { background: transparent; }

@keyframes cardGlowPulse {
    0% { box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 44px rgba(45,45,45,.12),
        0 0 0 1px rgba(var(--rgb-accent), .18),
        0 0 22px rgba(var(--rgb-accent), .22); }
    50% { box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 44px rgba(45,45,45,.12),
        0 0 0 1px rgba(var(--rgb-accent), .24),
        0 0 34px rgba(var(--rgb-accent), .36); }
    100% { box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 44px rgba(45,45,45,.12),
        0 0 0 1px rgba(var(--rgb-accent), .18),
        0 0 22px rgba(var(--rgb-accent), .22); }
}

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* 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: 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; }

/* 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; }
}