:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f4c95d;
    --color-surface: #fffaf0;
    --color-text: #24163a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 244,201,93;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 6px 18px rgba(36,22,58,.10), 0 1px 2px rgba(244,201,93,.10);
    --shadow-md: 0 16px 36px rgba(29,18,49,.12), 0 4px 14px rgba(124,58,237,.10);
    --shadow-lg: 0 26px 56px rgba(20,12,36,.18), 0 10px 24px rgba(244,201,93,.16);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.42s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: #0f0f1a; caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #fff7e8; text-shadow: 0 2px 14px rgba(124,58,237,.18); }
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); padding: var(--space-card); transition: var(--transition); background: linear-gradient(180deg, rgba(255,250,240,.98) 0%, rgba(250,242,255,.96) 100%); filter: saturate(1.02); backdrop-filter: blur(10px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 10px 24px rgba(76,29,149,.18), inset 0 1px 0 rgba(255,255,255,.35); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-primary), .35); }

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

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { background: linear-gradient(145deg, #fff8ea 0%, #f7efff 55%, #fff3cf 100%); border-radius: var(--radius-xl); padding: 3rem; text-align: center; box-shadow: 0 22px 52px rgba(22,14,39,.20), inset 0 1px 0 rgba(255,255,255,.55); border: 1px solid rgba(var(--rgb-accent), .30); }

/* 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); opacity: .99; }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f0f1a 0%, #2a1747 52%, #4c1d95 100%); }
.card { border: 1px solid rgba(var(--rgb-primary), .16); outline: 1px solid rgba(var(--rgb-accent), .12); }
header, .header, .navbar { background: linear-gradient(180deg, rgba(15,15,26,.78) 0%, rgba(15,15,26,.18) 100%); backdrop-filter: blur(14px); }

/* 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; }
}