/* CSSVariantEngine v3.0 — nphdianjing.org.cn */
/* Palette: ocean-glow | Radius: medium-rounded | Shadow: glowing */
/* Spacing: uniform-24px | Transition: fluid-glow */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"overlay","testimonials":"carousel","partners":"grid-4","faq":"single-column","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #10b981;
    --color-surface: #f0fdfa;
    --color-text: #0f172a;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 16, 185, 129;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.15);
    --shadow-md: 0 0 20px rgba(var(--rgb-accent), 0.3), 0 2px 8px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 0 28px rgba(var(--rgb-accent), 0.45), 0 4px 12px rgba(15, 23, 42, 0.08);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 1.5rem;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 600;
    --body-line-height: 1.65;
    accent-color: var(--color-accent);
    caret-color: var(--color-accent);
}

/* 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); text-shadow: 0 1px 3px rgba(var(--rgb-primary), 0.1); }
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; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); border: 1px solid rgba(var(--rgb-accent), 0.2); background-color: var(--color-primary); color: white; }
.btn:focus, button[class*="btn"]:focus, a[class*="btn"]:focus { outline: 2px solid var(--color-accent); outline-offset: 4px; box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.5); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-accent), 0.3); }
a:not([class]):hover { color: var(--color-accent); text-decoration-color: var(--color-accent); }

/* ========== 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: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(180deg, rgba(var(--rgb-primary), 0.05) 0%, rgba(var(--rgb-accent), 0.05) 100%); }
                .hero-content { position: relative; z-index: 1; }

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

/* 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: 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: var(--color-primary); text-shadow: 0 0 16px rgba(var(--rgb-accent), 0.4); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); color: #fff; padding: 4rem 2rem; box-shadow: 0 0 40px rgba(var(--rgb-accent), 0.3), inset 0 0 60px rgba(255,255,255,0.1); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 6px 16px rgba(15,23,42,0.1); animation-play-state: paused; }
.card { border: 1px solid rgba(var(--rgb-accent), .12); background-color: #ffffff; }

@keyframes pulse-glow {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.4); }
}

/* 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; }
}