:root {
    --color-primary: #0e5a5f;
    --color-primary-dark: #083f43;
    --color-accent: #f4a259;
    --color-surface: #fff7ec;
    --color-text: #163a3c;
    --rgb-primary: 14,90,95;
    --rgb-accent: 244,162,89;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --shadow-sm: 0 1px 2px rgba(8,63,67,0.10), 0 2px 10px rgba(244,162,89,0.08);
    --shadow-md: 0 14px 32px -14px rgba(8,63,67,0.30), 0 5px 16px rgba(14,90,95,0.12), inset 0 1px 0 rgba(255,255,255,0.85);
    --shadow-lg: 0 30px 72px -26px rgba(8,63,67,0.48), 0 12px 30px rgba(14,90,95,0.18), inset 0 0 0 1px rgba(244,162,89,0.10);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #fffdf9 0%, #fff7ec 38%, #f6ead9 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(255,255,255,0.94) 0%, rgba(255,247,236,0.72) 55%, rgba(247,235,220,0.60) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #fffdf9 0%, #fff3e4 46%, #f9e6cf 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #0e5a5f 0%, #0a474b 52%, #083f43 100%); color: #fffaf2; box-shadow: 0 12px 24px -14px rgba(8,63,67,0.60), inset 0 0 0 1px rgba(244,162,89,0.22); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-accent), 0.65); }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

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

/* 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: linear-gradient(135deg, #083f43 0%, #0e5a5f 32%, #0a4a4e 64%, #06363a 100%); color: #fffaf2; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), inset 0 -1px 0 rgba(0,0,0,0.18); }

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

/* 条件性装饰 */
.card { border: 1px solid transparent; border-image: linear-gradient(135deg, rgba(14,90,95,0.55) 0%, rgba(244,162,89,0.75) 48%, rgba(14,90,95,0.35) 100%) 1; }

/* 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; }
}