:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #a78bfa;
    --color-surface: #f5f3ff;
    --color-text: #1f1141;
    --rgb-primary: 109,40,217;
    --rgb-accent: 167,139,250;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 0 rgba(255,255,255,.35), 0 10px 20px rgba(15,15,26,.08), 0 2px 6px rgba(76,29,149,.12);
    --shadow-md: 0 1px 0 rgba(255,255,255,.42), 0 18px 40px rgba(15,15,26,.12), 0 6px 18px rgba(109,40,217,.18);
    --shadow-lg: 0 1px 0 rgba(255,255,255,.45), 0 26px 60px rgba(15,15,26,.18), 0 12px 30px rgba(109,40,217,.26);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 220ms cubic-bezier(.2,.8,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: #0f0f1a; }
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: 0 0 0 1px rgba(var(--rgb-accent), .10), 0 14px 36px rgba(15,15,26,.22), 0 10px 26px rgba(109,40,217,.20), 0 0 24px rgba(167,139,250,.18); padding: var(--space-card); transition: var(--transition); background: linear-gradient(180deg, rgba(245,243,255,.98), rgba(245,243,255,.90)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 0 1px rgba(var(--rgb-primary), .22), 0 10px 24px rgba(76,29,149,.18), 0 0 18px rgba(167,139,250,.16); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 20px rgba(var(--rgb-accent), .10); }

:focus-visible { outline: 2px solid rgba(var(--rgb-accent), .55); outline-offset: 3px; }

.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: 0 0 0 1px rgba(var(--rgb-accent), .22), 0 20px 56px rgba(15,15,26,.26), 0 18px 44px rgba(109,40,217,.26), 0 0 32px rgba(167,139,250,.35); }
a:not([class]):hover { color: #c4b5fd; }

.hero, [class*="hero"], section:first-of-type { background: radial-gradient(1200px 600px at 50% -10%, rgba(167,139,250,.35), transparent 60%), radial-gradient(900px 520px at 20% 10%, rgba(109,40,217,.35), transparent 55%), linear-gradient(135deg, #0f0f1a, #1a1140 35%, #4c1d95); box-shadow: inset 0 0 0 1px rgba(167,139,250,.10); }
.card { border: 1px solid rgba(var(--rgb-primary), .12); }

header, .header, .navbar { box-shadow: 0 10px 30px rgba(0,0,0,.22), 0 0 24px rgba(167,139,250,.12); background: rgba(15,15,26,.62); }

@media (prefers-reduced-motion: reduce) {
    :root { --transition: 0ms ease !important; }
    .card, [class*="card"], .btn, button[class*="btn"], a[class*="btn"], a:not([class]) { animation: none !important; transition: var(--transition) !important; }
}

@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; }
}

.cta-section { background: linear-gradient(180deg, #6d28d9 0%, #4c1d95 60%, #2e1065 100%); color: #ffffff; padding: 4rem 2rem; box-shadow: inset 0 0 0 1px rgba(167,139,250,.20), 0 22px 70px rgba(76,29,149,.34), 0 0 34px rgba(167,139,250,.25); }

.page-main { max-width: 1400px; margin: 0 auto; }

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

/* 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; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

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

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
/* full-bg already styled above */