/* CSSVariantEngine v3.0 — zh-go-hulizhibo-qq.com.cn */
/* Palette: teal-cyan | Radius: medium | Shadow: glow-accent */
/* Spacing: uniform-24px | Transition: smooth-glow */
/* Section layouts: {"news":"masonry-2","features":"horizontal","hero":"minimal","testimonials":"masonry","partners":"centered","faq":"single-column","stats":"grid-4","cta":"card-style"} */

@keyframes subtle-pulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(var(--rgb-primary), 0.15), 0 0 24px rgba(var(--rgb-accent), 0.3); }
    50% { box-shadow: 0 4px 12px rgba(var(--rgb-primary), 0.15), 0 0 28px rgba(var(--rgb-accent), 0.45); }
}

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #06b6d4;
    --color-surface: #f0fdfa;
    --color-text: #134e4a;
    --rgb-primary: 13, 148, 136;
    --rgb-accent: 6, 182, 212;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-primary), 0.08), 0 1px 3px rgba(var(--rgb-accent), 0.05);
    --shadow-md: 0 4px 12px rgba(var(--rgb-primary), 0.15), 0 0 24px rgba(var(--rgb-accent), 0.3);
    --shadow-lg: 0 8px 24px rgba(var(--rgb-primary), 0.2), 0 0 32px rgba(var(--rgb-accent), 0.55);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.25, 0.4, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
    accent-color: var(--color-accent);
    caret-color: var(--color-primary);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #ecfeff; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 2px rgba(var(--rgb-primary), 0.08); }
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: subtle-pulse 4s ease-in-out infinite; border: 1px solid rgba(var(--rgb-accent), 0.1); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: none; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.6); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.4); }

/* ========== 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); }

/* 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: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

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

/* 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: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { background: linear-gradient(135deg, var(--color-surface), #ccfbf1); border-radius: var(--radius-xl); padding: 3rem; text-align: center; border: 1px solid rgba(var(--rgb-accent), 0.2); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); animation-play-state: paused; }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: rgba(255,255,255,0.7); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.1); }

/* 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: 0.9rem; }
    .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; }
}