:root {
    --color-primary: #7c5cff;
    --color-primary-dark: #4b34b8;
    --color-accent: #f5d67b;
    --color-surface: #16162a;
    --color-text: #ece9f7;
    --rgb-primary: 124,92,255;
    --rgb-accent: 245,214,123;
    --radius-sm: 3px;
    --radius-md: 4px;
    --radius-lg: 5px;
    --radius-xl: 6px;
    --shadow-sm: 0 1px 2px rgba(15,15,26,.5);
    --shadow-md: 0 1px 3px rgba(15,15,26,.55), 0 0 0 1px rgba(124,92,255,.10);
    --shadow-lg: 0 2px 8px rgba(15,15,26,.6), 0 0 0 1px rgba(245,214,123,.18);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.22s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #0f0f1a; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #ffffff; }
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: #1a1a2e; border: 1px solid rgba(124,92,255,.14); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(180deg, #8a6bff, #6a4ce0); color: #ffffff; border-color: rgba(245,214,123,.35); box-shadow: 0 1px 2px rgba(15,15,26,.6), inset 0 1px 0 rgba(255,255,255,.12); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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 20s 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: card-style */
.cta-inner { background: radial-gradient(ellipse at 50% 0%, #221c3d 0%, #16162a 70%); border-radius: var(--radius-xl); padding: 3rem; text-align: center; border: 1px solid rgba(245,214,123,.22); box-shadow: 0 2px 16px rgba(124,92,255,.18), inset 0 1px 0 rgba(245,214,123,.10); }

/* 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: 0 6px 18px rgba(124,92,255,.28), 0 0 0 1px rgba(245,214,123,.30); }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { box-shadow: 0 1px 4px rgba(0,0,0,.5), 0 0 0 1px rgba(124,92,255,.12); background: #12121f; }

/* 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; }
}