/* CSSVariantEngine v3.0 — go-qiutan-score.net.cn */
/* Palette: vibrant violet-coral | Radius: soft rounded | Shadow: multi-layer elevation */
/* Spacing: mosaic medium | Transition: smooth long cubic */
/* Section layouts: {"news":"featured-top","features":"grid-2","hero":"centered","testimonials":"masonry","partners":"centered","faq":"with-sidebar","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #8b5cf6;
    --color-primary-dark: #7c3aed;
    --color-accent: #f97316;
    --color-surface: #fdf4ff;
    --color-text: #1e1b4b;
    --rgb-primary: 139, 92, 246;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(139,92,246,0.12), 0 1px 3px rgba(249,115,22,0.08);
    --shadow-md: 0 4px 16px rgba(139,92,246,0.18), 0 2px 6px rgba(249,115,22,0.12);
    --shadow-lg: 0 8px 32px rgba(139,92,246,0.22), 0 4px 12px rgba(249,115,22,0.16), 0 2px 4px rgba(0,0,0,0.05);
    --space-section: 4.2rem;
    --space-card: 1.6rem;
    --space-gap: 1.75rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(135deg, #fdf4ff 0%, #f0f9ff 50%, #fff7ed 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); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition);
    background: linear-gradient(145deg, #ffffff 0%, #faf5ff 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    border: none;
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; background: linear-gradient(135deg, #f5f3ff 0%, #eff6ff 100%); }
                .news-grid > *:nth-child(even) { background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }
.feature-list > *:nth-child(3n+1) { background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%); }
.feature-list > *:nth-child(3n+2) { background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero-inner { background: radial-gradient(circle at top center, rgba(139,92,246,0.1) 0%, transparent 70%); padding: 3rem 1rem; border-radius: var(--radius-xl); }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); background: linear-gradient(145deg, #fdf2f8 0%, #fce7f3 100%); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid > * { filter: saturate(0.8); transition: var(--transition); }
.partner-grid > *:hover { filter: saturate(1.2) drop-shadow(0 2px 8px rgba(139,92,246,0.3)); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
                .faq-sidebar .card { background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%); }

/* 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; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
                .stats-grid .stat-item { background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background: linear-gradient(90deg, var(--color-primary-dark) 0%, var(--color-accent) 100%); color: white; padding: 2.5rem; border-radius: var(--radius-xl); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 4px rgba(249,115,22,0.3); }
.card { 
    border-left: 4px solid; 
    border-image: linear-gradient(to bottom, var(--color-primary), var(--color-accent)) 1; 
}
.card:hover { 
    transform: translateY(-4px); 
    box-shadow: var(--shadow-lg); 
}
.btn:hover {
    filter: brightness(1.1);
    transform: scale(1.03);
    box-shadow: 0 6px 20px rgba(139,92,246,0.35);
}

/* 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; }
}