:root {
    --color-primary: #3a0ca3;
    --color-primary-dark: #240046;
    --color-accent: #ffca3a;
    --color-surface: #f3efff;
    --color-text: #0b1020;
    --rgb-primary: 58,12,163;
    --rgb-accent: 255,202,58;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --shadow-sm: 0 0 0 rgba(0,0,0,0);
    --shadow-md: 0 1px 0 rgba(0,0,0,.08);
    --shadow-lg: 0 2px 10px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 240ms cubic-bezier(.2,.8,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: radial-gradient(1000px 480px at 50% 0%, rgba(var(--rgb-primary), .10), transparent 55%),
                radial-gradient(900px 520px at 50% 100%, rgba(var(--rgb-accent), .08), transparent 60%),
                #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-primary), .14), 0 10px 22px rgba(0,0,0,.20), 0 2px 6px rgba(0,0,0,.10);
    padding: var(--space-card); 
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background-color var(--transition), color var(--transition);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}
a:not([class]) { 
    color: var(--color-accent); 
    transition: color var(--transition), text-shadow var(--transition), filter var(--transition);
    text-decoration-color: rgba(var(--rgb-accent), .55);
}

:focus-visible {
    outline: 2px solid rgba(var(--rgb-accent), .7);
    outline-offset: 2px;
}

a:not([class]):hover { 
    color: var(--color-accent); 
    text-shadow: 0 0 18px rgba(var(--rgb-accent), .35);
    filter: saturate(1.05);
}

section, .section, header, .header, .navbar, .hero, [class*="hero"], section:first-of-type { 
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}

.hero, [class*="hero"], section:first-of-type { 
    background: radial-gradient(900px 420px at 50% 15%, rgba(var(--rgb-accent), .12), transparent 60%),
                radial-gradient(700px 360px at 25% 40%, rgba(var(--rgb-primary), .40), transparent 60%),
                linear-gradient(135deg, #120018, #0f0f1a 60%, #2a094d);
}

.card { border: 1px solid rgba(var(--rgb-accent), .14); }

header, .header, .navbar { 
    box-shadow: 0 18px 36px rgba(0,0,0,.22), 0 2px 10px rgba(0,0,0,.12);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(var(--rgb-primary), .16);
}

.news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
.news-grid > *:first-child { grid-row: span 2; }

.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

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

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

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

.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { font-size: 3rem; }

.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 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; }
}