/* CSSVariantEngine v3.0 — hk-pgsoft.com.cn */
/* Palette: violet-cyan glow | Radius: medium 8-16px | Shadow: neon glow */
/* Spacing: mixed tight-loose | Transition: smooth glow */
/* Section layouts: {"news":"featured-left","features":"centered","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #22d3ee;
    --color-surface: #0f172a;
    --color-text: #f1f5f9;
    --rgb-primary: 124, 58, 237;
    --rgb-accent: 34, 211, 238;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 2px 4px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 8px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(0, 0, 0, 0.25);
    --space-section: 4.4rem;
    --space-card: 1.7rem;
    --space-gap: 0.9rem;
    --transition: 0.3s ease-in-out;
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 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); }
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); border: 2px solid rgba(var(--rgb-accent), 0.4); animation: softPulse 3.5s infinite ease-in-out; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: 1px solid var(--color-accent); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

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

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: 2.8rem; max-width: 720px; margin: 0 auto; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

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

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 24s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 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: full-bg */
.cta-section { background: linear-gradient(135deg, #06b6d4, #0891b2); color: #0f172a; padding: 4rem 2rem; }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #7c3aed, #4c1d95, #312e81); }
.testimonials-section { background-color: #1e293b; }
.features-section { background-color: #1e1b4b; }
.news-section { background-color: #0f172a; }
.stats-section { background-color: #312e81; }
header, .header, .navbar { background: rgba(var(--rgb-primary), 0.15); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.3); }

@keyframes softPulse {
    0% { box-shadow: 0 0 18px rgba(var(--rgb-accent), 0.3); }
    50% { box-shadow: 0 0 26px rgba(var(--rgb-accent), 0.5); }
    100% { box-shadow: 0 0 18px rgba(var(--rgb-accent), 0.3); }
}

/* 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; }
}