/* CSSVariantEngine v3.0 — zhongyadianjing.org.cn */
/* Palette: vibrant teal-coral | Radius: medium | Shadow: glow-elevation */
/* Spacing: medium | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"split","testimonials":"carousel","partners":"grid-6","faq":"two-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #2dd4bf;
    --color-accent-secondary: #f97316;
    --color-accent-tertiary: #facc15;
    --color-surface: #f0fdfa;
    --color-text: #134e4a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 45,212,191;
    --rgb-accent-secondary: 249,115,22;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 2px 6px rgba(var(--rgb-primary), 0.1);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 6px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 12px 24px rgba(0,0,0,0.12);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 1.75rem;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 6px 12px rgba(0,0,0,0.08); }
    100% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 6px 12px rgba(0,0,0,0.08); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: 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: var(--shadow-md); padding: var(--space-card); transition: var(--transition); animation: pulse-glow 4s ease-in-out infinite alternate; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-accent-secondary)); color: white; border: none; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent-secondary), 0.6); transform: translateY(-2px); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: grid-4 */
/* 四列中等间距网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }
.news-grid .card { background-color: rgba(var(--rgb-accent), 0.08); border-color: rgba(var(--rgb-accent), 0.25); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list .card { background-color: rgba(var(--rgb-accent-secondary), 0.08); border-color: rgba(var(--rgb-accent-secondary), 0.25); }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }
.testimonial-list .card { background-color: rgba(250, 204, 21, 0.1); border-color: rgba(250, 204, 21, 0.3); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }
.partner-grid .card { background-color: white; border-color: rgba(var(--rgb-primary), 0.15); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card { background-color: rgba(var(--rgb-primary), 0.05); border-color: rgba(var(--rgb-primary), 0.2); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background-color: white; border-color: rgba(var(--rgb-accent-secondary), 0.2); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary), var(--color-accent-secondary)); color: #fff; padding: 4rem 2rem; box-shadow: 0 0 40px rgba(var(--rgb-accent), 0.5); }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent-secondary); text-shadow: 0 0 8px rgba(var(--rgb-accent-secondary), 0.4); }
.card { border: 1px solid rgba(var(--rgb-primary), .08); }
.card:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 12px 24px rgba(0,0,0,0.12); transform: translateY(-3px); animation: none; }
header, .header, .navbar { box-shadow: 0 0 16px rgba(var(--rgb-primary), 0.15); background-color: rgba(255,255,255,0.9); backdrop-filter: blur(8px); }

/* 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: 1.5rem; }
    .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; }
}