:root {
    --color-primary: #4338ca;
    --color-primary-dark: #1e1b4b;
    --color-accent: #f472b6;
    --color-surface: #f5f3ff;
    --color-text: #1e1b4b;
    --rgb-primary: 67,56,202;
    --rgb-accent: 244,114,182;
    --radius-sm: 3px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 2px rgba(30,27,75,.06), 0 1px 1px rgba(67,56,202,.06);
    --shadow-md: 0 6px 18px -6px rgba(30,27,75,.16), 0 2px 6px rgba(67,56,202,.10);
    --shadow-lg: 0 24px 48px -16px rgba(30,27,75,.28), 0 8px 20px -8px rgba(244,114,182,.22);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); accent-color: var(--color-primary); caret-color: var(--color-accent); }
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(160deg, #ffffff 0%, #f5f3ff 46%, #ede9fe 78%, #fce7f3 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #1e1b4b 0%, #4338ca 40%, #7c3aed 70%, #f472b6 100%); color: #fdf4ff; border-color: rgba(255,255,255,.35); box-shadow: 0 10px 26px -14px rgba(67,56,202,.8), 0 2px 6px rgba(244,114,182,.28); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-accent), .6); }

/* ========== 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-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* 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: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); 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; }

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

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(120% 140% at 12% 8%, rgba(244,114,182,.35) 0%, rgba(244,114,182,0) 55%), linear-gradient(135deg, #1e1b4b 0%, #312e81 28%, #6d28d9 58%, #a21caf 80%, #fb7185 100%); }
.card { border: 1px solid transparent; border-image: linear-gradient(135deg, rgba(67,56,202,.45) 0%, rgba(124,58,237,.38) 45%, rgba(244,114,182,.42) 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; }
}