:/* CSSVariantEngine v3.0 — my-hub-kaiyun.com */
/* Palette: twilight-meadow | Radius: pill | Shadow: layered */
/* Spacing: comfortable | Transition: silky */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"overlay","testimonials":"carousel","partners":"centered","faq":"two-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #7b2ff7;
    --color-primary-dark: #4c1d95;
    --color-accent: #06b6d4;
    --color-surface: #f0fdfa;
    --color-text: #1e293b;
    --rgb-primary: 123,47,247;
    --rgb-accent: 6,182,212;
    --radius-sm: 14px;
    --radius-md: 22px;
    --radius-lg: 32px;
    --radius-xl: 44px;
    --shadow-sm: 0 2px 8px rgba(76,29,149,.08), 0 4px 20px rgba(76,29,149,.04), inset 0 1px 0 rgba(255,255,255,.9);
    --shadow-md: 0 6px 24px rgba(76,29,149,.12), 0 12px 48px rgba(76,29,149,.06), inset 0 1px 0 rgba(255,255,255,.95);
    --shadow-lg: 0 12px 40px rgba(76,29,149,.16), 0 24px 80px rgba(76,29,149,.08), inset 0 1px 0 rgba(255,255,255,1);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(145deg, #f8fafc 0%, #ecfeff 50%, #f5f3ff 100%); }
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(145deg, rgba(255,255,255,.98), rgba(240,253,250,.92)); border: 1px solid rgba(255,255,255,.6); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.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)); box-shadow: 0 4px 16px rgba(123,47,247,.25); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration: underline; text-decoration-color: rgba(123,47,247,.3); text-underline-offset: 4px; }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(123,47,247,.08), rgba(6,182,212,.08)); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }
.feature-list > * { border-radius: var(--radius-xl); background: linear-gradient(145deg, rgba(255,255,255,.95), rgba(240,253,250,.85)); }

/* 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% 50%, rgba(123,47,247,.15), transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(6,182,212,.12), transparent 50%), linear-gradient(135deg, #f8fafc, #f0fdfa); }
                .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%; border-radius: var(--radius-xl); background: linear-gradient(145deg, rgba(255,255,255,.98), rgba(245,243,255,.9)); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid > * { border-radius: var(--radius-lg); background: linear-gradient(145deg, rgba(255,255,255,.92), rgba(236,254,255,.88)); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list > * { border-radius: var(--radius-lg); background: linear-gradient(145deg, rgba(255,255,255,.96), rgba(240,253,250,.9)); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * { border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(123,47,247,.06), rgba(6,182,212,.06)); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(123,47,247,.1), rgba(6,182,212,.1)); padding: calc(var(--space-card) * 1.2); }

/* 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); text-decoration-color: rgba(6,182,212,.5); }
.card { border-left: 4px solid transparent; border-image: linear-gradient(to bottom, var(--color-primary), var(--color-accent)) 1; }
header, .header, .navbar { background: linear-gradient(180deg, rgba(255,255,255,.8), rgba(255,255,255,.5)); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }

/* 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; }
}