:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-surface: #fff7ed;
    --color-text: #24143a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 0 rgba(255,255,255,.35), 0 6px 18px rgba(var(--rgb-primary),.14);
    --shadow-md: 0 1px 0 rgba(255,255,255,.42), 0 10px 28px rgba(var(--rgb-primary),.18), 0 2px 10px rgba(0,0,0,.08);
    --shadow-lg: 0 1px 0 rgba(255,255,255,.48), 0 18px 50px rgba(var(--rgb-primary),.22), 0 10px 30px rgba(0,0,0,.10);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: .55s cubic-bezier(.22,1,.36,1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(1200px 600px at 50% -120px, rgba(var(--rgb-primary),.22), rgba(255,255,255,0) 55%),
        radial-gradient(900px 500px at 15% 20%, rgba(var(--rgb-accent),.16), rgba(255,255,255,0) 55%),
        radial-gradient(900px 700px at 85% 15%, rgba(var(--rgb-primary),.10), rgba(255,255,255,0) 52%),
        linear-gradient(180deg, #0f0f1a 0%, #121027 40%, #0f0f1a 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);
    padding: var(--space-card);
    transition:
        transform var(--transition),
        box-shadow calc(var(--transition) + .05s),
        border-color var(--transition),
        background var(--transition),
        color var(--transition),
        filter var(--transition);
    box-shadow:
        0 1px 0 rgba(255,255,255,.40),
        0 12px 34px rgba(var(--rgb-primary), .20),
        0 10px 26px rgba(0,0,0,.10);
    border: 1px solid rgba(124,58,237,.22);
    background:
        radial-gradient(700px 240px at 20% 0%, rgba(245,158,11,.18), rgba(255,255,255,0) 55%),
        radial-gradient(520px 220px at 90% 10%, rgba(124,58,237,.26), rgba(255,255,255,0) 55%),
        linear-gradient(180deg, rgba(255,255,255,.70) 0%, rgba(255,255,255,.45) 60%, rgba(255,255,255,.32) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition:
        background var(--transition),
        color var(--transition),
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition),
        filter var(--transition);
}

a:not([class]) {
    color: #fbbf24;
    transition: var(--transition);
    text-shadow: 0 0 18px rgba(245,158,11,.18);
    outline-color: rgba(245,158,11,.55);
    caret-color: #fbbf24;
}

.card:hover, [class*="card"]:hover {
    transform: translateY(-5px);
    box-shadow:
        0 1px 0 rgba(255,255,255,.48),
        0 22px 62px rgba(var(--rgb-primary), .28),
        0 14px 40px rgba(0,0,0,.12);
    border-color: rgba(245,158,11,.32);
    filter: saturate(1.06);
}

.card { border: 1px solid rgba(var(--rgb-primary), .22); }
header, .header, .navbar { background: transparent; }

@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; }
}

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

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

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