:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f5c451;
    --color-surface: #f7f4ff;
    --color-text: #1b1230;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,196,81;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(15,15,26,.10), 0 0 0 1px rgba(124,58,237,.06);
    --shadow-md: 0 2px 6px rgba(15,15,26,.10), 0 14px 34px -14px rgba(76,29,149,.32), 0 0 0 1px rgba(245,196,81,.10);
    --shadow-lg: 0 6px 18px rgba(15,15,26,.18), 0 32px 64px -24px rgba(15,15,26,.55), 0 0 0 1px rgba(245,196,81,.22);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 620px at 50% -12%, #241447 0%, #14102a 42%, #0f0f1a 74%, #0b0b14 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(158deg, #ffffff 0%, #f7f4ff 52%, #fdf7e8 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-image: linear-gradient(135deg, #7c3aed 0%, #5b21b6 48%, #a97b1f 78%, #f5c451 100%); color: #fff8ea; box-shadow: 0 10px 26px -14px rgba(76,29,149,.60), inset 0 1px 0 rgba(255,255,255,.20); }
a:not([class]) { color: var(--color-primary); 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* 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: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(122deg, #1a1030 0%, #3b1d7a 32%, #7c3aed 58%, #b8860b 86%, #f5c451 100%); color: #fdf9ef; padding: 4rem 2rem; box-shadow: inset 0 0 0 1px rgba(245,196,81,.24), 0 26px 64px -30px rgba(76,29,149,.70); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(142deg, #0f0f1a 0%, #241447 28%, #4c1d95 58%, #7c3aed 80%, #d9a441 100%); color: #f6f2ff; box-shadow: inset 0 -1px 0 rgba(245,196,81,.18), 0 24px 60px -34px rgba(15,15,26,.75); }
.card { border: 1px solid rgba(var(--rgb-accent), .34); }

/* 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; }
}