/* CSSVariantEngine v3.0 — cn10-aigame.com.cn */
/* Palette: violet | Radius: asymmetric | Shadow: layered */
/* Spacing: tight | Transition: smooth-long */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"minimal","testimonials":"masonry","partners":"centered","faq":"with-sidebar","stats":"inline","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-secondary: #db2777;
    --color-surface: #fff7ed;
    --color-text: #2e1065;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a855f7 42%, #f59e0b 100%);
    --gradient-warm: linear-gradient(160deg, #ffffff 0%, #fff7ed 55%, #fdf2f8 100%);
    --gradient-border: linear-gradient(140deg, rgba(124,58,237,.75) 0%, rgba(245,158,11,.65) 52%, rgba(219,39,119,.45) 100%);
    --radius-sm: 5px;
    --radius-md: 14px;
    --radius-lg: 30px 10px 30px 10px;
    --radius-xl: 44px 14px 44px 14px;
    --shadow-sm: 0 1px 2px rgba(76,29,149,.14), 0 1px 0 rgba(245,158,11,.18);
    --shadow-md: 0 2px 4px rgba(76,29,149,.10), 0 12px 26px -10px rgba(124,58,237,.38), 0 0 0 1px rgba(245,158,11,.12), inset 0 1px 0 rgba(255,255,255,.75);
    --shadow-lg: 0 6px 16px rgba(46,16,101,.14), 0 30px 60px -24px rgba(219,39,119,.45), inset 0 1px 0 rgba(255,255,255,.6);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 0.85rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background-color: var(--color-surface);
    background-image:
        radial-gradient(1100px 520px at 12% -8%, rgba(124,58,237,.16) 0%, rgba(124,58,237,0) 62%),
        radial-gradient(900px 460px at 92% 4%, rgba(245,158,11,.18) 0%, rgba(245,158,11,0) 60%),
        linear-gradient(180deg, #fff7ed 0%, #fdf2f8 50%, #f5f3ff 100%);
    caret-color: var(--color-secondary);
    accent-color: var(--color-primary);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    border-top: 1px solid rgba(124,58,237,.10);
}
section:nth-child(even), .section:nth-child(even) {
    background-image: linear-gradient(180deg, rgba(255,247,237,.55) 0%, rgba(245,243,255,.85) 100%);
}
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    background-image: radial-gradient(120% 100% at 0% 0%, rgba(124,58,237,.10) 0%, rgba(124,58,237,0) 46%), var(--gradient-warm);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    border-color: rgba(245,158,11,.55);
    box-shadow: var(--shadow-sm);
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

/* ========== 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); background-image: radial-gradient(70% 60% at 100% 0%, rgba(219,39,119,.10) 0%, rgba(219,39,119,0) 70%); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); background-image: linear-gradient(200deg, rgba(124,58,237,.10) 0%, rgba(124,58,237,0) 58%); }

/* hero: minimal */
.hero { padding: 2.2rem 0; background-image: linear-gradient(135deg, rgba(124,58,237,.14) 0%, rgba(168,85,247,.08) 40%, rgba(245,158,11,.14) 100%); } .hero-content { max-width: 560px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); background-image: linear-gradient(160deg, rgba(245,158,11,.10) 0%, rgba(219,39,119,.06) 100%); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.2rem; background-image: linear-gradient(90deg, rgba(76,29,149,.10) 0%, rgba(245,158,11,.08) 50%, rgba(76,29,149,.10) 100%); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2.2rem; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 2.8rem; background-image: radial-gradient(60% 100% at 50% 100%, rgba(124,58,237,.14) 0%, rgba(124,58,237,0) 72%); }

/* cta: card-style */
.cta-inner {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 38%, #db2777 74%, #f59e0b 100%);
    border-radius: var(--radius-xl);
    padding: 3.2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,.28);
}

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

/* 条件性装饰 */
.card {
    border: 1px solid transparent;
    border-image: linear-gradient(140deg, rgba(124,58,237,.75) 0%, rgba(245,158,11,.65) 52%, rgba(219,39,119,.45) 100%) 1;
    background-image: radial-gradient(130% 110% at 0% 0%, rgba(124,58,237,.12) 0%, rgba(124,58,237,0) 48%), var(--gradient-warm);
}
header, .header, .navbar {
    background: linear-gradient(180deg, rgba(124,58,237,.09) 0%, rgba(245,158,11,.05) 52%, rgba(255,247,237,0) 100%);
    backdrop-filter: blur(7px) saturate(1.25);
}

/* 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: 2.2rem; --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; padding: 2.5rem; }
}