:root {
    --color-primary: #052E2B;
    --color-primary-dark: #021C1A;
    --color-accent: #F59E0B;
    --color-surface: #F4F1EA;
    --color-text: #10201E;
    --rgb-primary: 5,46,43;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent),.15), 0 2px 4px rgba(var(--rgb-primary),.08);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent),.25), 0 4px 10px rgba(var(--rgb-primary),.10);
    --shadow-lg: 0 0 36px rgba(var(--rgb-accent),.45), 0 8px 20px rgba(var(--rgb-primary),.12);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

body { background: var(--color-surface); 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: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: rgba(255,255,255,.72); animation: glowPulse 4s ease-in-out infinite; }
.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); text-shadow: 0 0 6px rgba(var(--rgb-accent), .18); }

.card:hover, [class*="card"]:hover { filter: brightness(1.06) drop-shadow(0 0 14px rgba(var(--rgb-accent), .55)); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), .6), 0 0 12px rgba(var(--rgb-accent), .3); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 14px rgba(var(--rgb-accent), .5); }

@keyframes glowPulse {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 0 32px rgba(var(--rgb-accent), .4), 0 4px 12px rgba(var(--rgb-primary), .12); }
}

/* ========== 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: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: radial-gradient(ellipse at 20% 30%, rgba(var(--rgb-accent), .18) 0%, rgba(var(--rgb-primary), .95) 55%, var(--color-primary-dark) 100%); }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-accent), #D97706); color: #052E2B; padding: 4rem 2rem; }

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

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-accent); outline: 1px solid rgba(var(--rgb-accent), .18); outline-offset: 2px; }
header, .header, .navbar { box-shadow: 0 0 18px rgba(var(--rgb-accent), .22), 0 2px 8px rgba(var(--rgb-primary), .08); }

/* 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; }
}