:root {
    --color-primary: #4b1d8f;
    --color-primary-dark: #341266;
    --color-accent: #f4c14b;
    --color-surface: #faf7ff;
    --color-text: #1b1230;
    --rgb-primary: 75,29,143;
    --rgb-accent: 244,193,75;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 1px 2px rgba(52,18,102,.18), 0 4px 12px -6px rgba(75,29,143,.28);
    --shadow-md: 0 6px 18px -8px rgba(52,18,102,.35), 0 2px 6px rgba(75,29,143,.14), 0 0 0 1px rgba(244,193,75,.10);
    --shadow-lg: 0 22px 48px -18px rgba(52,18,102,.55), 0 10px 24px -12px rgba(75,29,143,.42), 0 0 0 1px rgba(244,193,75,.22);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #faf7ff; background-image: radial-gradient(ellipse at 50% -10%, rgba(244,193,75,.16) 0%, rgba(244,193,75,0) 55%), radial-gradient(circle at 12% 18%, rgba(75,29,143,.10) 0%, rgba(75,29,143,0) 48%), linear-gradient(180deg, #ffffff 0%, #f7f2ff 42%, #ece4fb 100%); accent-color: var(--color-accent); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #2a1650; }
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(160deg, #ffffff 0%, #f8f4ff 52%, #ece2fd 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-image: linear-gradient(135deg, #341266 0%, #55229c 48%, #8b4fe0 100%); color: #fdf8ff; box-shadow: 0 8px 20px -10px rgba(52,18,102,.62), inset 0 1px 0 rgba(255,255,255,.18); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* 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-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background-color: #341266; background-image: radial-gradient(circle at 50% 0%, rgba(244,193,75,.30) 0%, rgba(244,193,75,0) 58%), linear-gradient(135deg, #0f0f1a 0%, #2a1055 38%, #4b1d8f 72%, #7a3ed2 100%); color: #fdf8ff; padding: 4rem 2rem; }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; 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(160deg, #ffffff 0%, #f4ecff 48%, #e2d2fb 100%); }
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background-color: #0f0f1a; background-image: radial-gradient(ellipse at 50% 12%, rgba(244,193,75,.32) 0%, rgba(244,193,75,0) 52%), radial-gradient(circle at 82% 78%, rgba(139,79,224,.42) 0%, rgba(139,79,224,0) 55%), linear-gradient(160deg, #0f0f1a 0%, #1a1030 34%, #341266 68%, #4b1d8f 100%); color: #fdf8ff; }
header, .header, .navbar { background: transparent; }

/* 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; }
}