/* CSSVariantEngine v3.0 — int-vtiyu.sx.cn */
/* Palette: vivid violet tangerine | Radius: soft organic | Shadow: multi-layer gradient tinted */
/* Spacing: asymmetric contrast | Transition: smooth long curve */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"centered","testimonials":"stacked","partners":"scroll","faq":"with-sidebar","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #7e22ce;
    --color-primary-dark: #581c87;
    --color-accent: #f97316;
    --color-surface: #fff7ed;
    --color-text: #1e1b4b;
    --rgb-primary: 126,34,206;
    --rgb-accent: 249,115,22;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 34px;
    --shadow-sm: 0 3px 8px rgba(126,34,206,.12), 0 1px 2px rgba(249,115,22,.07);
    --shadow-md: 0 14px 28px rgba(126,34,206,.16), 0 5px 10px rgba(249,115,22,.11);
    --shadow-lg: 0 32px 64px rgba(126,34,206,.22), 0 12px 24px rgba(249,115,22,.13);
    --space-section: 4.4rem;
    --space-card: 1.7rem;
    --space-gap: 1.6rem;
    --transition: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 700;
    --body-line-height: 1.75;
    --accent-gradient: linear-gradient(135deg, #7e22ce 0%, #f97316 50%, #ec4899 100%);
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #faf5ff 0%, #fff7ed 100%);
    caret-color: var(--color-accent);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
    background: linear-gradient(180deg, transparent 0%, rgba(126,34,206,0.03) 100%);
}
.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%, #f3e8ff 100%);
    border: 2px solid;
    border-image: linear-gradient(45deg, #7e22ce, #f97316, #ec4899) 1;
}
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: var(--accent-gradient);
    color: white;
    border: 2px solid transparent;
    box-shadow: var(--shadow-sm);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-md);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition);
    text-shadow: 0 0 0 transparent;
}

/* ========== 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; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: centered */
.hero-content { 
    text-align: center; 
    max-width: 800px; 
    margin: 0 auto; 
    background: radial-gradient(ellipse at center, rgba(249,115,22,0.08) 0%, transparent 70%);
    padding: 2rem;
    border-radius: var(--radius-xl);
}

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

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 26s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > div {
    background: linear-gradient(180deg, #fef3c7 0%, #fef9c3 100%);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

/* cta: card-style */
.cta-inner { 
    background: var(--accent-gradient); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: white;
    box-shadow: var(--shadow-lg);
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

/* 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 1px 3px rgba(249,115,22,0.2);
}
header, .header, .navbar { 
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid;
    border-image: linear-gradient(90deg, #7e22ce, #f97316) 1;
}

/* 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; }
}