:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #2e1065;
    --color-accent: #2dd4bf;
    --color-surface: #fef9ec;
    --color-text: #1e1b4b;
    --rgb-primary: 124,58,237;
    --rgb-accent: 45,212,191;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 2px 6px rgba(76,29,149,.08), 0 1px 2px rgba(76,29,149,.04);
    --shadow-md: 0 12px 24px -8px rgba(76,29,149,.14), 0 5px 10px -5px rgba(76,29,149,.08);
    --shadow-lg: 0 26px 44px -14px rgba(76,29,149,.22), 0 12px 24px -10px rgba(76,29,149,.12);
    --space-section: 3.5rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { background: linear-gradient(135deg, #fef9ec 0%, #faf5e9 45%, #ffffff 100%); color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { background: repeating-linear-gradient(180deg, rgba(255,255,255,.95) 0px, rgba(255,255,255,.95) 100px, rgba(254,249,236,.85) 100px, rgba(254,249,236,.85) 200px, rgba(30,27,75,.08) 200px, rgba(30,27,75,.08) 260px, rgba(255,255,255,.95) 260px, rgba(255,255,255,.95) 360px); padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); background: linear-gradient(145deg, #ffffff 0%, #f1f5f9 100%); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fdfaf6; box-shadow: var(--shadow-sm); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); text-decoration-color: rgba(124,58,237,.35); transition: var(--transition); }

/* ========== 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: 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: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2.25rem; align-items: center; }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 1.75rem; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3.5rem; }

/* cta: full-bg */
.cta-section { background: linear-gradient(110deg, #1e1b4b 0%, #4c1d95 40%, #7c3aed 75%, #2dd4bf 100%); color: #fdfaf6; padding: 4rem 2rem; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }

/* 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); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(125deg, #1e1b4b 0%, #4c1d95 35%, #7c3aed 70%, #22d3ee 100%); color: #fdfaf6; }
header, .header, .navbar { background: linear-gradient(90deg, rgba(30,27,75,.95), rgba(76,29,149,.9)); color: #fdfaf6; box-shadow: 0 10px 24px -12px rgba(30,27,75,.4), 0 4px 8px -4px rgba(30,27,75,.2); }

/* 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: 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; }
}