/* CSSVariantEngine v3.0 — zh-xingkongtiyu.tj.cn */
/* Palette: violet-cyan | Radius: soft-round | Shadow: layered glow */
/* Spacing: tight | Transition: spring */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"overlay","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #22d3ee;
    --color-surface: #f4f1ff;
    --color-text: #1b1633;
    --rgb-primary: 109,40,217;
    --rgb-accent: 34,211,238;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 0 10px rgba(34,211,238,.22);
    --shadow-md: 0 4px 16px rgba(109,40,217,.16), 0 0 24px rgba(34,211,238,.20);
    --shadow-lg: 0 12px 34px rgba(76,29,149,.26), 0 0 40px rgba(34,211,238,.30);
    --space-section: 2.25rem;
    --space-card: 1.15rem;
    --space-gap: 0.85rem;
    --transition: 0.38s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { 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: linear-gradient(158deg, #ffffff 0%, #f6f2ff 56%, #eefcff 100%); outline: 1px solid rgba(34,211,238,.24); outline-offset: -1px; }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(34,211,238,.55), 0 14px 36px rgba(76,29,149,.26); outline-color: rgba(34,211,238,.55); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 16px rgba(34,211,238,.30), 0 4px 14px rgba(109,40,217,.20); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 30px rgba(34,211,238,.60), 0 8px 22px rgba(109,40,217,.30); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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; background: linear-gradient(135deg, #ede9fe 0%, #e6f9ff 100%); box-shadow: var(--shadow-lg); border-radius: var(--radius-xl); }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .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: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

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

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #4c1d95 0%, #6d28d9 46%, #0891b2 100%); animation: variantGlowPulse 5.5s ease-in-out infinite; }
@keyframes variantGlowPulse {
    0%, 100% { box-shadow: 0 0 24px rgba(34,211,238,.26), inset 0 0 44px rgba(109,40,217,.12); }
    50% { box-shadow: 0 0 44px rgba(34,211,238,.52), inset 0 0 64px rgba(109,40,217,.22); }
}
header, .header, .navbar { box-shadow: 0 1px 0 rgba(34,211,238,.35), 0 8px 26px rgba(109,40,217,.20), 0 0 22px rgba(34,211,238,.18); backdrop-filter: blur(12px) saturate(1.15); }

/* 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: 2.25rem; --space-card: 1.15rem; --space-gap: 0.85rem; }
    .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; }
}