:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-surface: #faf5ff;
    --color-text: #2e1065;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(76,29,149,.14), 0 4px 12px rgba(124,58,237,.12);
    --shadow-md: 0 2px 6px rgba(76,29,149,.12), 0 14px 28px rgba(124,58,237,.16);
    --shadow-lg: 0 6px 14px rgba(76,29,149,.14), 0 28px 56px rgba(124,58,237,.22);
    --space-section: 3.2rem;
    --space-card: 1.35rem;
    --space-gap: 1.1rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
    accent-color: var(--color-accent);
    caret-color: var(--color-accent);
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at 10% 20%, rgba(124,58,237,.12), transparent 40%), radial-gradient(circle at 90% 10%, rgba(245,158,11,.1), transparent 35%), linear-gradient(160deg, #faf5ff, #f5f3ff 50%, #fdf4ff); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(120deg, rgba(124,58,237,.05), rgba(245,158,11,.04) 60%, rgba(255,255,255,0)); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, rgba(255,255,255,.96), rgba(245,243,255,.9)); backdrop-filter: blur(10px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), #c026d3 70%, var(--color-accent)); box-shadow: var(--shadow-sm); color: #fff; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: var(--color-accent); }

/* ========== 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; background: linear-gradient(135deg, rgba(124,58,237,.08), rgba(217,70,239,.05) 55%, rgba(245,158,11,.06)); border-radius: var(--radius-xl); }

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

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; background: linear-gradient(90deg, rgba(124,58,237,.06), rgba(245,158,11,.06)); border-radius: var(--radius-xl); } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; background: radial-gradient(circle at 15% 30%, rgba(245,158,11,.12), transparent 45%), linear-gradient(120deg, rgba(124,58,237,.06), rgba(255,255,255,.4)); border-radius: var(--radius-lg); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2.25rem; background: linear-gradient(135deg, rgba(245,158,11,.06), rgba(217,70,239,.05) 50%, rgba(124,58,237,.06)); border-radius: var(--radius-xl); }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; background: linear-gradient(160deg, rgba(76,29,149,.1), rgba(245,158,11,.08)); border-radius: var(--radius-xl); }

/* cta: card-style */
.cta-inner { background: radial-gradient(circle at 80% 10%, rgba(245,158,11,.25), transparent 45%), linear-gradient(145deg, #f5f3ff, #fdf4ff 60%, #fef3c7); border-radius: var(--radius-xl); padding: 3.2rem; text-align: center; box-shadow: var(--shadow-lg); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 2px 8px rgba(124,58,237,.25); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(circle at 80% 20%, rgba(245,158,11,.35), transparent 45%), radial-gradient(circle at 15% 80%, rgba(217,70,239,.3), transparent 40%), linear-gradient(135deg, #a855f7, #7c3aed 40%, #4c1d95 75%, #312e81); }
.card { border-left: 3px solid var(--color-accent); border-image: linear-gradient(180deg, var(--color-accent), var(--color-primary) 60%, #d946ef) 1; }
header, .header, .navbar { background: linear-gradient(180deg, rgba(255,255,255,.65), rgba(255,255,255,.15)); backdrop-filter: blur(14px); }

/* 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: 2.4rem; --space-card: 1.1rem; --space-gap: 0.85rem; }
    .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; }
}