:root {
    --color-primary: #4b1f7a;
    --color-primary-dark: #240a3d;
    --color-accent: #fbbf24;
    --color-surface: #f7f1ff;
    --color-text: #110b18;
    --rgb-primary: 75,31,122;
    --rgb-accent: 251,191,36;
    --radius-sm: 3px;
    --radius-md: 5px;
    --radius-lg: 6px;
    --radius-xl: 8px;
    --shadow-sm: 0 1px 0 rgba(var(--rgb-primary),.18), 0 8px 18px rgba(36,10,61,.12);
    --shadow-md: 0 1px 0 rgba(var(--rgb-primary),.14), 0 10px 26px rgba(15,15,26,.16);
    --shadow-lg: 0 1px 0 rgba(var(--rgb-primary),.18), 0 16px 40px rgba(15,15,26,.22);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.14s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 520px at 50% 0%, rgba(75,31,122,.18), transparent 60%), linear-gradient(180deg, #0f0f1a 0%, #0b0b14 65%, #0a0a12 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: 0 1px 0 rgba(251,191,36,.10), 0 10px 22px rgba(15,15,26,.24), 0 0 0 1px rgba(75,31,122,.18) inset; padding: var(--space-card); transition: var(--transition); background: linear-gradient(180deg, rgba(247,241,255,.96) 0%, rgba(247,241,255,.88) 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 1px 0 rgba(251,191,36,.14), 0 10px 18px rgba(15,15,26,.18); }
a:not([class]) { color: #caa7ff; transition: var(--transition); text-decoration-color: rgba(251,191,36,.55); }
a:not([class]):focus { outline: 2px solid rgba(251,191,36,.45); outline-offset: 2px; }
:focus-visible { outline: 2px solid rgba(251,191,36,.45); outline-offset: 2px; border-radius: var(--radius-sm); }

header, .header, .navbar { box-shadow: 0 1px 0 rgba(251,191,36,.12), 0 10px 26px rgba(0,0,0,.20), 0 0 0 1px rgba(75,31,122,.18) inset; background: rgba(12,12,20,.65); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* 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: 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: 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: radial-gradient(900px 380px at 50% 0%, rgba(251,191,36,.35), transparent 62%), linear-gradient(135deg, #4b1f7a 0%, #240a3d 55%, #2a0c4b 100%); color: #fff; padding: 4rem 2rem; box-shadow: 0 1px 0 rgba(251,191,36,.10), 0 22px 60px rgba(0,0,0,.35); }

/* 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(-2px); box-shadow: 0 1px 0 rgba(251,191,36,.16), 0 18px 46px rgba(15,15,26,.30), 0 0 0 1px rgba(251,191,36,.22) inset; }
a:not([class]):hover { color: var(--color-accent); text-decoration-color: rgba(255,255,255,.55); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(900px 420px at 50% 0%, rgba(251,191,36,.24), transparent 60%), linear-gradient(135deg, #4b1f7a 0%, #240a3d 58%, #1f0934 100%); }
.card { border-left: 2px solid var(--color-primary); background-clip: padding-box; }

/* 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; }
}