:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #2e1065;
    --color-accent: #f59e0b;
    --color-surface: #fffbeb;
    --color-text: #1e1b4b;
    --rgb-primary: 109,40,217;
    --rgb-accent: 245,158,11;
    --gradient-primary: linear-gradient(135deg, #6d28d9 0%, #a78bfa 45%, #f59e0b 100%);
    --gradient-surface: linear-gradient(160deg, #ffffff 0%, #fffbeb 55%, #fef3c7 100%);
    --gradient-dark: linear-gradient(120deg, #1e1b4b 0%, #4c1d95 50%, #6d28d9 100%);
    --gradient-accent: linear-gradient(90deg, rgba(245,158,11,.18) 0%, rgba(109,40,217,.16) 50%, rgba(167,139,250,.20) 100%);
    --radius-sm: 6px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --shadow-sm: 0 1px 2px rgba(46,16,101,.10), 0 3px 8px rgba(245,158,11,.10);
    --shadow-md: 0 8px 18px rgba(46,16,101,.14), 0 18px 38px rgba(109,40,217,.12);
    --shadow-lg: 0 22px 44px rgba(30,27,75,.22), 0 40px 80px rgba(245,158,11,.18);
    --space-section: 3.5rem;
    --space-card: 1.35rem;
    --space-gap: 1.1rem;
    --transition: 0.45s 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: linear-gradient(180deg, #ffffff 0%, #fffbeb 100%); caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: var(--gradient-accent); border-bottom: 1px solid rgba(109,40,217,.10); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: var(--gradient-surface); border-color: rgba(109,40,217,.18); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: var(--gradient-primary); color: #fffbeb; border-color: rgba(46,16,101,.30); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: 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: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: var(--gradient-dark); color: #fffbeb; box-shadow: inset 0 -60px 90px rgba(30,27,75,.35); }
                .hero-content { position: relative; z-index: 1; color: #fffbeb; text-shadow: 0 2px 12px rgba(46,16,101,.45); }

/* 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: 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: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; background: var(--gradient-accent); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }

/* cta: card-style */
.cta-inner { background: var(--gradient-primary); border-radius: var(--radius-xl); padding: 3rem; text-align: center; color: #fffbeb; box-shadow: 0 24px 48px rgba(46,16,101,.28), 0 48px 90px rgba(245,158,11,.20); border: 1px solid rgba(255,251,235,.28); }

/* 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); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: transparent; backdrop-filter: blur(14px) saturate(150%); outline-color: rgba(109,40,217,.35); }

/* 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; }
}