:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #fbbf24;
    --color-surface: #fdfbf7;
    --color-text: #1b1726;
    --rgb-primary: 109,40,217;
    --rgb-accent: 251,191,36;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(27,23,38,.06), 0 3px 8px rgba(109,40,217,.08);
    --shadow-md: 0 4px 10px rgba(27,23,38,.06), 0 14px 28px -10px rgba(109,40,217,.22);
    --shadow-lg: 0 10px 22px rgba(27,23,38,.09), 0 32px 60px -18px rgba(109,40,217,.34);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background-color: #fbf8f3;
    background-image: radial-gradient(900px 520px at 12% -8%, #f3e8ff 0%, rgba(243,232,255,0) 62%), radial-gradient(760px 480px at 92% 4%, #ffedd5 0%, rgba(255,237,213,0) 58%), linear-gradient(180deg, #fdfbf7 0%, #f8f2ea 48%, #f2ebfd 100%);
}
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: var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    background-color: #ffffff;
    background-image: linear-gradient(150deg, #ffffff 0%, #fbf7ff 42%, #f4ecff 78%, #ffeede 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background-image: linear-gradient(135deg, #4c1d95 0%, #7c3aed 46%, #c026d3 76%, #fbbf24 100%);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(76,29,149,.24), 0 10px 22px -8px rgba(192,38,211,.42);
}
a:not([class]) { color: #7c3aed; transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

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

/* cta: full-bg */
.cta-section {
    background-color: #4c1d95;
    background-image: linear-gradient(120deg, #3b0764 0%, #6d28d9 34%, #a21caf 64%, #f59e0b 100%);
    color: #fff;
    padding: 4rem 2rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 24px 48px -24px rgba(76,29,149,.55);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background-image: linear-gradient(150deg, #ffffff 0%, #f7eeff 38%, #ede0ff 66%, #ffe3c9 100%);
}
.hero, [class*="hero"], section:first-of-type {
    background-color: #4c1d95;
    background-image: radial-gradient(700px 380px at 18% 12%, rgba(251,191,36,.42) 0%, rgba(251,191,36,0) 60%), radial-gradient(620px 420px at 84% 88%, rgba(192,38,211,.48) 0%, rgba(192,38,211,0) 62%), linear-gradient(135deg, #3b0764 0%, #5b21b6 30%, #7c3aed 54%, #a21caf 78%, #f59e0b 100%);
    color: #fdfbf7;
}
.card { border-left: 3px solid #c026d3; }
header, .header, .navbar {
    background-image: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(250,244,255,.92) 100%);
    box-shadow: 0 1px 2px rgba(27,23,38,.05), 0 6px 18px -6px rgba(109,40,217,.22);
}

/* 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; }
}