:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #f472b6;
    --color-surface: #faf5ff;
    --color-text: #1a1025;
    --rgb-primary: 124,58,237;
    --rgb-accent: 244,114,182;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 34px;
    --shadow-sm: 0 2px 6px rgba(124,58,237,.10), 0 1px 3px rgba(244,114,182,.08);
    --shadow-md: 0 6px 18px rgba(124,58,237,.14), 0 3px 8px rgba(244,114,182,.10);
    --shadow-lg: 0 14px 34px rgba(124,58,237,.20), 0 6px 14px rgba(244,114,182,.14), 0 2px 4px rgba(91,33,182,.08);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(circle at 15% 20%, rgba(244,114,182,.10) 0%, rgba(244,114,182,0) 45%),
        radial-gradient(circle at 85% 80%, rgba(124,58,237,.12) 0%, rgba(124,58,237,0) 50%),
        linear-gradient(160deg, #faf5ff 0%, #f5f0ff 40%, #fdf2f8 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: linear-gradient(150deg, #ffffff 0%, #faf5ff 55%, #fdf2f8 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #f472b6 100%);
    color: #ffffff;
    box-shadow: 0 6px 16px rgba(124,58,237,.28), 0 2px 6px rgba(244,114,182,.20);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow: 0 10px 26px rgba(124,58,237,.36), 0 4px 12px rgba(244,114,182,.28);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(244,114,182,.5);
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value {
                    font-size: 3rem;
                    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 45%, #f472b6 100%);
                    -webkit-background-clip: text;
                    background-clip: text;
                    -webkit-text-fill-color: transparent;
                    color: #7c3aed;
                }

/* cta: full-bg */
.cta-section {
    background: linear-gradient(135deg, #5b21b6 0%, #7c3aed 40%, #a855f7 70%, #f472b6 100%);
    color: #ffffff;
    padding: 4rem 2rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 20px 50px rgba(124,58,237,.28);
}

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

/* 条件性装饰 */
.card {
    border: 1px solid rgba(var(--rgb-primary), .12);
    border-image: linear-gradient(135deg, rgba(124,58,237,.28) 0%, rgba(244,114,182,.28) 100%) 1;
}

/* 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; }
}