:root {
    --color-primary: #3b2a6b;
    --color-primary-dark: #16102b;
    --color-accent: #f5c66a;
    --color-surface: #fdf9f3;
    --color-text: #1f1833;
    --rgb-primary: 59,42,107;
    --rgb-accent: 245,198,106;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 6px rgba(31,24,51,.06), 0 1px 2px rgba(31,24,51,.04);
    --shadow-md: 0 10px 28px -6px rgba(59,42,107,.16), 0 4px 12px rgba(31,24,51,.06);
    --shadow-lg: 0 28px 58px -14px rgba(59,42,107,.26), 0 14px 28px rgba(31,24,51,.09), 0 0 0 1px rgba(245,198,106,.18);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.38s cubic-bezier(.22,.61,.36,1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #0f0f1a; background-image: radial-gradient(120% 80% at 50% 0%, #221a3d 0%, #14101f 45%, #0b0912 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.5), 0 8px 24px rgba(59,42,107,.10); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-color: var(--color-surface); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #fffdf9; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-xl); transition: var(--transition); accent-color: var(--color-accent); box-shadow: 0 8px 20px -8px rgba(245,198,106,.65), inset 0 1px 0 rgba(255,255,255,.35); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); caret-color: var(--color-accent); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background-image: linear-gradient(160deg, #1a1230 0%, #2b1f52 45%, #3b2a6b 100%), radial-gradient(90% 70% at 50% 0%, rgba(245,198,106,.28) 0%, rgba(245,198,106,0) 70%); background-color: #16102b; border-radius: var(--radius-xl); box-shadow: inset 0 0 0 1px rgba(245,198,106,.22), 0 40px 80px -30px rgba(0,0,0,.75); }
                .hero-content { position: relative; z-index: 1; }
                .hero-content h1, .hero-content h2 { color: #fdf9f3; text-shadow: 0 2px 24px rgba(245,198,106,.35), 0 1px 2px rgba(0,0,0,.5); }

/* 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 20s linear infinite; filter: saturate(.92) contrast(1.02); }
                @keyframes partnerScroll { 0% { transform: translateX(0); opacity: .92; } 100% { transform: translateX(-50%); opacity: 1; } }

/* 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, #16102b 0%, #3b2a6b 52%, #55408f 100%); color: #fdf2d8; padding: 4rem 2rem; border-radius: var(--radius-xl); box-shadow: inset 0 0 0 1px rgba(245,198,106,.25), 0 32px 64px -24px rgba(0,0,0,.7); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card { border: 1px solid rgba(var(--rgb-accent), .42); }

/* 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; }
    .cta-section { border-radius: var(--radius-lg); }
}