:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #f472b6;
    --color-surface: #faf5ff;
    --color-text: #2e1065;
    --rgb-primary: 109,40,217;
    --rgb-accent: 244,114,182;
    --grad-primary: linear-gradient(135deg, #4c1d95 0%, #6d28d9 35%, #a855f7 70%, #f472b6 100%);
    --grad-surface: linear-gradient(160deg, #faf5ff 0%, #f3e8ff 55%, #ede9fe 100%);
    --grad-accent: linear-gradient(120deg, #a855f7 0%, #c084fc 50%, #f472b6 100%);
    --grad-card: linear-gradient(150deg, #ffffff 0%, #f8f3ff 55%, #f0e6ff 100%);
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    --shadow-sm: 0 1px 2px rgba(76,29,149,.06), 0 4px 14px rgba(109,40,217,.10);
    --shadow-md: 0 2px 4px rgba(76,29,149,.07), 0 10px 28px rgba(109,40,217,.14);
    --shadow-lg: 0 4px 10px rgba(76,29,149,.09), 0 20px 48px rgba(109,40,217,.18);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.55s cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: var(--grad-surface); }
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 0 0 1px rgba(168,85,247,.16); padding: var(--space-card); transition: var(--transition); background: var(--grad-card); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-image: var(--grad-accent); color: #2e1065; box-shadow: var(--shadow-sm); }
a:not([class]) { color: var(--color-primary); text-decoration-color: rgba(244,114,182,.55); 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: linear-gradient(140deg, #2e1065 0%, #4c1d95 30%, #7c3aed 65%, #c026d3 100%); color: #faf5ff; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 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: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; background-image: var(--grad-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--color-primary-dark); }

/* cta: full-bg */
.cta-section { background: linear-gradient(120deg, #4c1d95 0%, #6d28d9 40%, #a855f7 75%, #f472b6 100%); color: #fdf4ff; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(255,255,255,.18), inset 0 -60px 120px rgba(46,16,101,.35); }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
header, .header, .navbar { background: linear-gradient(180deg, rgba(250,245,255,.92) 0%, rgba(250,245,255,.40) 60%, rgba(250,245,255,0) 100%); }

/* 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; }
}