/* CSSVariantEngine v3.0 — official-9you-vip.com.cn */
/* Palette: dusk-indigo | Radius: medium | Shadow: glow | Style: symmetric-grid */
/* Spacing: tight | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"centered","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #4f46e5;
    --color-primary-dark: #3730a3;
    --color-accent: #06b6d4;
    --color-surface: #eef2ff;
    --color-text: #1e1b4b;
    --rgb-primary: 79,70,229;
    --rgb-accent: 6,182,212;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-primary), .06), 0 0 16px rgba(var(--rgb-accent), .10);
    --shadow-md: 0 10px 28px rgba(var(--rgb-primary), .12), 0 0 24px rgba(var(--rgb-accent), .16);
    --shadow-lg: 0 18px 44px rgba(var(--rgb-primary), .16), 0 0 36px rgba(var(--rgb-accent), .24);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.9rem;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(900px 480px at 50% -80px, rgba(var(--rgb-accent), .14), transparent 70%), var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 14px rgba(var(--rgb-accent), .14); }
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); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); animation: btnGlow 3.2s ease-in-out infinite; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 10px rgba(var(--rgb-accent), .25); }

/* ========== 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: 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: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 26s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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: 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: 0 0 0 1px rgba(var(--rgb-accent), .2), 0 14px 36px rgba(var(--rgb-primary), .18), 0 0 32px rgba(var(--rgb-accent), .6); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 16px rgba(var(--rgb-accent), .5); }
.card { border: 1px solid rgba(var(--rgb-accent), .22); }

@keyframes btnGlow {
    0%, 100% { box-shadow: 0 0 12px rgba(var(--rgb-accent), .3); }
    50% { box-shadow: 0 0 24px rgba(var(--rgb-accent), .55); }
}

/* 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: 1.75rem; --space-card: 0.9rem; --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; }
}