:root {
    --color-primary: #3b0764;
    --color-primary-dark: #2e1065;
    --color-accent: #7c3aed;
    --color-surface: #fff7ef;
    --color-text: #2a0a4a;
    --rgb-primary: 59,7,100;
    --rgb-accent: 124,58,237;
    --radius-sm: 7px;
    --radius-md: 13px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 0 rgba(20, 8, 35, .10), 0 10px 22px rgba(124, 58, 237, .08);
    --shadow-md: 0 10px 28px rgba(34, 8, 68, .10), 0 2px 8px rgba(34, 8, 68, .06), 0 1px 0 rgba(255,255,255,.55) inset;
    --shadow-lg: 0 18px 50px rgba(20, 5, 45, .16), 0 6px 18px rgba(59, 7, 100, .12), 0 1px 0 rgba(255,255,255,.60) inset;
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.52s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.6;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(900px 420px at 20% -10%, rgba(124,58,237,.18), transparent 60%), radial-gradient(700px 360px at 85% 0%, rgba(59,7,100,.16), transparent 55%), linear-gradient(180deg, #ffffff, #fff8f1 55%, #ffffff); }
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 20px 60px rgba(19, 4, 40, .14),
        0 10px 28px rgba(124, 58, 237, .10),
        0 2px 8px rgba(19, 4, 40, .06),
        0 1px 0 rgba(255,255,255,.7) inset;
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), background var(--transition), border-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 var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
}
a:not([class]) {
    color: #6d28d9;
    transition: color var(--transition), text-shadow var(--transition), filter var(--transition);
    text-shadow: 0 0 0 rgba(0,0,0,0);
}

.news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
.news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

.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: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }

.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

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

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

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

.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(1200px 520px at 15% 15%, rgba(124,58,237,.46), transparent 58%),
        radial-gradient(900px 420px at 90% 5%, rgba(59,7,100,.36), transparent 55%),
        linear-gradient(135deg, #ffffff 0%, #fff1ff 18%, rgba(124,58,237,.25) 38%, rgba(59,7,100,.55) 68%, #2a0753 100%);
    border-top: 1px solid rgba(124,58,237,.20);
    border-bottom: 1px solid rgba(59,7,100,.18);
}
.card { border: 1px solid rgba(var(--rgb-primary), .14); }
header, .header, .navbar {
    box-shadow:
        0 18px 60px rgba(59, 7, 100, .18),
        0 2px 12px rgba(59, 7, 100, .10),
        0 1px 0 rgba(255,255,255,.65) inset;
    border-bottom: 1px solid rgba(124,58,237,.18);
}

@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; }
}