:root {
    --color-primary: #3A1D6E;
    --color-primary-dark: #17103A;
    --color-accent: #FF8A5B;
    --color-surface: #FBF6EF;
    --color-text: #1B1130;
    --rgb-primary: 58,29,110;
    --rgb-accent: 255,138,91;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(23,16,58,.06), 0 1px 2px rgba(23,16,58,.04);
    --shadow-md: 0 10px 28px -8px rgba(23,16,58,.20), 0 4px 12px -4px rgba(255,138,91,.14);
    --shadow-lg: 0 30px 60px -18px rgba(23,16,58,.32), 0 14px 28px -10px rgba(255,138,91,.22);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.4rem;
    --transition: 0.34s cubic-bezier(.2,.7,.3,1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); background: var(--color-surface); line-height: var(--body-line-height); }
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), inset 0 1px 0 rgba(255,255,255,.85); padding: var(--space-card); transition: var(--transition); background: #FFFFFF; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: 999px; transition: var(--transition); box-shadow: 0 6px 16px -8px rgba(255,138,91,.55); }
a:not([class]) { color: var(--color-primary); text-decoration-color: rgba(255,138,91,.55); transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

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

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2.25rem; overflow: hidden; animation: partnerScroll 24s 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: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3.25rem; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* 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), inset 0 1px 0 rgba(255,255,255,.95); border-color: rgba(255,138,91,.35); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(circle at 78% 16%, rgba(255,138,91,.30), transparent 55%), linear-gradient(135deg, #2A1656 0%, #17103A 52%, #432679 100%); }
header, .header, .navbar { background: transparent; backdrop-filter: saturate(140%) blur(8px); box-shadow: inset 0 -1px 0 rgba(255,138,91,.22); }

/* 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: 2.25rem; --space-card: 1.125rem; --space-gap: 0.875rem; }
    .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; }
}