:root {
    --color-primary: #2f6b57;
    --color-primary-dark: #1f4638;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 47,107,87;
    --rgb-accent: 196,123,90;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 0px;
    --radius-xl: 0px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.14s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
    --outline-color: rgba(47, 107, 87, 0.35);
    --border-soft: rgba(45, 45, 45, 0.14);
}

body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); }

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: none; padding: var(--space-card); transition: var(--transition); background: #ffffff; border: 1px solid rgba(45, 45, 45, 0.14); }

.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }

a:not([class]) { color: var(--color-primary); transition: var(--transition); }

a:not([class]):focus,
a:not([class]):focus-visible,
.btn:focus,
button[class*="btn"]:focus,
a[class*="btn"]:focus {
    outline: 2px solid var(--outline-color);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

.card:focus,
.card:focus-visible {
    outline: 2px solid rgba(196, 123, 90, 0.45);
    outline-offset: 2px;
}

section:first-of-type,
.hero,
[class*="hero"],
header, .header, .navbar { background: transparent; }

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

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* 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; }

/* 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: full-bg */
.cta-section { background: var(--color-primary); color: #ffffff; padding: 4rem 2rem; border-top: 1px solid rgba(255,255,255,0.15); border-bottom: 1px solid rgba(0,0,0,0.06); }

.cta-section .cta-inner,
.cta-section [class*="cta-inner"] { background: transparent; }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: #faf8f3; }
.card { border-left: 3px solid var(--color-primary); }

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

/* 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; }
}