:root {
    --color-primary: #3b0b4f;
    --color-primary-dark: #2a0738;
    --color-accent: #c9a227;
    --color-surface: #fcf5ff;
    --color-text: #2d1b4e;
    --rgb-primary: 59,11,79;
    --rgb-accent: 201,162,39;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,.25), 0 0 0 1px rgba(201,162,39,.15);
    --shadow-md: 0 8px 32px rgba(0,0,0,.35), 0 0 0 1px rgba(201,162,39,.2);
    --shadow-lg: 0 20px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(201,162,39,.3);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { background: linear-gradient(135deg, #0f0f1a, #1a1a2e); color: #e0d8f0; line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 2px 4px rgba(0,0,0,.4); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { background: var(--color-surface); color: var(--color-text); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); border: 1px solid transparent; border-image: linear-gradient(45deg, var(--color-primary), var(--color-accent)) 1; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

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

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

/* features: centered */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* testimonials: carousel */
.testimonial-list { display: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }

/* 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: big-number */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { font-size: 3rem; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary), #1a0730); color: #fff; padding: 4rem 2rem; }

/* Page Layout: wide */
.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); backdrop-filter: blur(2px); }
a:not([class]):hover { color: var(--color-accent); }
.card { border: 1px solid transparent; border-image: linear-gradient(45deg, var(--color-primary), var(--color-accent)) 1; }

/* 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; }
}