:root {
    --color-primary: #0f5d3a;
    --color-primary-dark: #083526;
    --color-accent: #2cb67d;
    --color-surface: #f3fbf6;
    --color-text: #12221a;
    --rgb-primary: 15,93,58;
    --rgb-accent: 44,182,125;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 26px;
    --shadow-sm: 0 6px 14px rgba(var(--rgb-primary), .10), 0 1px 0 rgba(255,255,255,.7) inset;
    --shadow-md: 0 14px 30px rgba(var(--rgb-primary), .10), 0 4px 10px rgba(13,44,30,.08), 0 1px 0 rgba(255,255,255,.75) inset;
    --shadow-lg: 0 26px 55px rgba(var(--rgb-primary), .14), 0 10px 22px rgba(13,44,30,.10), 0 1px 0 rgba(255,255,255,.72) inset;
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 520ms cubic-bezier(.18,.84,.24,1);
    --heading-weight: 700;
    --body-line-height: 1.7;
    --color-border: rgba(12, 55, 35, .10);
    --color-muted: rgba(18,34,26,.72);
    --focus-ring: rgba(44,182,125,.35);
    --bg-soft: #f4f7f6;
}

/* 基础覆盖 */
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: 24px; box-shadow: 0 18px 34px rgba(var(--rgb-primary),.12), 0 6px 16px rgba(9, 46, 31, .10), 0 1px 0 rgba(255,255,255,.8) inset; padding: var(--space-card); transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background-color var(--transition); border: 1px solid rgba(var(--rgb-primary), .10); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: 18px; transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition); }
a:not([class]) { color: #0f6a44; transition: color var(--transition), text-shadow var(--transition); text-shadow: 0 0 0 rgba(0,0,0,0); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.90)); box-shadow: 0 16px 32px rgba(var(--rgb-primary), .11), 0 5px 14px rgba(12, 45, 31, .08), 0 1px 0 rgba(255,255,255,.85) inset; border-color: rgba(var(--rgb-primary), .10); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }
.feature-list .card { border-radius: 24px; border-color: rgba(var(--rgb-primary), .10); background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.90)); box-shadow: 0 18px 34px rgba(var(--rgb-primary), .10), 0 4px 12px rgba(12, 45, 31, .08), 0 1px 0 rgba(255,255,255,.82) inset; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: radial-gradient(1100px 620px at 18% 20%, rgba(44,182,125,.26), rgba(44,182,125,0) 60%), radial-gradient(900px 520px at 82% 12%, rgba(15,93,58,.26), rgba(15,93,58,0) 62%), linear-gradient(135deg, #0e6b47, #083526); }
                .hero-content { position: relative; z-index: 1; }
.hero-content { color: rgba(255,255,255,.95); }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }
.testimonial-list .card { background: rgba(255,255,255,.92); border: 1px solid rgba(15,93,58,.10); border-radius: 24px; box-shadow: 0 20px 42px rgba(8,53,38,.14), 0 6px 18px rgba(8,53,38,.10), 0 1px 0 rgba(255,255,255,.85) inset; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.faq-wrapper .card { border-radius: 24px; border-color: rgba(var(--rgb-primary), .10); background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.90)); box-shadow: 0 18px 36px rgba(var(--rgb-primary), .10), 0 6px 18px rgba(12,45,31,.08), 0 1px 0 rgba(255,255,255,.83) inset; }

/* 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: #0b5135; text-shadow: 0 1px 0 rgba(255,255,255,.7), 0 18px 40px rgba(var(--rgb-accent), .20); }
.stats-grid .card { border-radius: 24px; border-color: rgba(var(--rgb-primary), .10); background: rgba(255,255,255,.92); box-shadow: 0 22px 46px rgba(var(--rgb-primary), .11), 0 7px 18px rgba(12,45,31,.09), 0 1px 0 rgba(255,255,255,.85) inset; }

/* cta: card-style */
.cta-inner { background: linear-gradient(180deg, rgba(243,251,246,.98), rgba(236,250,243,.92)); border-radius: 28px; padding: 3rem; text-align: center; box-shadow: 0 26px 60px rgba(8,53,38,.14), 0 10px 24px rgba(8,53,38,.10), 0 1px 0 rgba(255,255,255,.9) inset; border: 1px solid rgba(15,93,58,.10); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, rgba(15,93,58,.95), rgba(8,53,38,.96)); }
.card { border: 1px solid rgba(var(--rgb-primary), .10); }
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; }
}