:root {
    --color-primary: #065f46;
    --color-primary-dark: #04392b;
    --color-accent: #ff6b35;
    --color-surface: #fff7f2;
    --color-text: #071217;
    --rgb-primary: 6,95,70;
    --rgb-accent: 255,107,53;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    --shadow-sm: 0 6px 14px rgba(6,95,70,0.06), 0 2px 6px rgba(4,57,43,0.04);
    --shadow-md: 0 12px 30px rgba(6,95,70,0.08), 0 6px 18px rgba(4,57,43,0.06), inset 0 1px 0 rgba(255,255,255,0.02);
    --shadow-lg: 0 20px 48px rgba(6,95,70,0.12), 0 8px 28px rgba(4,57,43,0.08), inset 0 -6px 24px rgba(255,107,53,0.02);
    --space-section: 4.5rem;
    --space-card: 1.8rem;
    --space-gap: 1.5rem;
    --transition: 0.28s cubic-bezier(.2,.9,.3,1);
    --heading-weight: 700;
    --body-line-height: 1.6;
    --ui-outline: rgba(255,107,53,0.18);
    --muted-overlay: rgba(4,57,43,0.04);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, var(--color-surface) 0%, #fffaf8 100%); -webkit-font-smoothing:antialiased; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 6px 18px rgba(4,57,43,0.06); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: conic-gradient(from 180deg at 50% 50%, rgba(var(--rgb-primary),0.02), rgba(255,255,255,0)); border-radius: var(--radius-xl); box-shadow: var(--shadow-sm); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: box-shadow var(--transition), transform var(--transition), filter var(--transition); background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,249,246,0.95)); backdrop-filter: blur(6px) saturate(110%); border-style: solid; border-color: rgba(var(--rgb-primary),0.06); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition); accent-color: var(--color-accent); caret-color: var(--color-primary); }
a:not([class]) { color: var(--color-accent); transition: color var(--transition); text-decoration-color: rgba(var(--rgb-primary),0.12); outline-color: var(--ui-outline); }

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

/* 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: 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: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); filter: saturate(1.04) drop-shadow(0 6px 20px rgba(4,57,43,0.06)); }
a:not([class]):hover { color: var(--color-primary-dark); text-decoration-color: rgba(var(--rgb-accent),0.2); }

/* 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: 3.6rem; --space-card: 1.44rem; --space-gap: 0.9rem; }
    .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; }
}