/* CSSVariantEngine v3.0 — longzhulivety-cn.com */
/* Palette: midnight-gold | Radius: soft | Shadow: layered | Gradient: rich */
/* Spacing: balanced | Transition: smooth-long */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #2e1065;
    --color-accent: #fbbf24;
    --color-surface: #1a1030;
    --color-text: #f5f3ff;
    --rgb-primary: 124,58,237;
    --rgb-accent: 251,191,36;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(124,58,237,.18), 0 2px 8px rgba(46,16,101,.12), 0 0 0 1px rgba(124,58,237,.06);
    --shadow-md: 0 2px 6px rgba(124,58,237,.22), 0 8px 24px rgba(46,16,101,.18), 0 0 0 1px rgba(124,58,237,.08);
    --shadow-lg: 0 4px 12px rgba(124,58,237,.28), 0 16px 40px rgba(46,16,101,.24), 0 0 0 1px rgba(251,191,36,.1), 0 0 48px rgba(124,58,237,.12);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(ellipse at 50% 0%, #1e1145 0%, #0f0f1a 40%, #0a0815 100%);
    background-attachment: fixed;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #ede9fe; }
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(30,17,69,.72) 0%, rgba(15,15,26,.88) 50%, rgba(26,16,48,.75) 100%);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(124,58,237,.18);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 45%, #fbbf24 100%);
    color: #0f0f1a;
    border: none;
    box-shadow: 0 2px 8px rgba(124,58,237,.3), 0 0 20px rgba(251,191,36,.1);
}
a:not([class]) { color: #c4b5fd; transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* 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: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(251,191,36,.35);
    background: linear-gradient(145deg, rgba(40,22,85,.82) 0%, rgba(20,18,40,.9) 50%, rgba(35,22,60,.8) 100%);
}
a:not([class]):hover { color: var(--color-accent); }
.card {
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, #7c3aed, #fbbf24, #7c3aed) 1;
    border-image-slice: 0 0 0 1;
}
header, .header, .navbar {
    background: linear-gradient(180deg, rgba(15,15,26,.92) 0%, rgba(15,15,26,.6) 70%, transparent 100%);
    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; }
}