:root {
    --color-primary: #5b21b6;
    --color-primary-dark: #3b0764;
    --color-accent: #f59e0b;
    --color-surface: #ffffff;
    --color-text: #e9eaf2;
    --rgb-primary: 91,33,182;
    --rgb-accent: 245,158,11;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 22px;
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.18), 0 1px 2px rgba(15,15,26,0.18);
    --shadow-md: 0 6px 18px rgba(0,0,0,0.22), 0 2px 8px rgba(15,15,26,0.18);
    --shadow-lg: 0 10px 28px rgba(0,0,0,0.28), 0 18px 60px -18px rgba(0,0,0,0.45), 0 2px 10px rgba(91,33,182,0.18);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.38s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #0f0f1a; }
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:
        0 1px 0 rgba(255,255,255,0.06) inset,
        0 10px 30px rgba(0,0,0,0.28),
        0 2px 10px rgba(91,33,182,0.14);
    padding: var(--space-card);
    transition: var(--transition);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(245,158,11,0.18);
}
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }
a:not([class]):hover { color: #ffd28a; }

/* ========== 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;
                    scroll-padding-inline: 0.75rem;
                }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

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

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

/* cta: card-style */
.cta-inner {
    background:
        radial-gradient(1200px 600px at 10% 0%, rgba(245,158,11,0.18), transparent 55%),
        radial-gradient(900px 520px at 90% 20%, rgba(91,33,182,0.22), transparent 60%),
        rgba(255,255,255,0.08);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow:
        0 1px 0 rgba(255,255,255,0.06) inset,
        0 20px 70px -30px rgba(0,0,0,0.55);
    border: 1px solid rgba(245,158,11,0.18);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 960px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow:
        0 1px 0 rgba(255,255,255,0.08) inset,
        0 14px 44px rgba(0,0,0,0.34),
        0 28px 90px -45px rgba(0,0,0,0.6),
        0 0 0 1px rgba(245,158,11,0.18);
    border-color: rgba(245,158,11,0.28);
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 20% 0%, rgba(245,158,11,0.18), transparent 55%),
        radial-gradient(780px 360px at 90% 30%, rgba(91,33,182,0.35), transparent 60%),
        linear-gradient(135deg, #0b0b14, #1f1146);
}
.card { border: 1px solid rgba(var(--rgb-primary), .14); }
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; }
}