/* CSSVariantEngine v3.0 — zh-haiqiulive-qq.com.cn */
/* Palette: asymmetric-gradient | Radius: bold organic | Shadow: multi-layer colored */
/* Spacing: mixed tight-loose | Transition: long smooth */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"split","testimonials":"carousel","partners":"scroll","faq":"single-column","stats":"big-number","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4f46e5;
    --color-accent: #10b981;
    --color-surface: #f8fafc;
    --rgb-primary: 124,58,237;
    --rgb-accent: 16,185,129;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 30px;
    --shadow-sm: 0 3px 10px rgba(var(--rgb-primary),.22), 0 1px 3px rgba(var(--rgb-accent),.14);
    --shadow-md: 0 7px 24px rgba(var(--rgb-primary),.26), 0 3px 8px rgba(var(--rgb-accent),.17);
    --shadow-lg: 0 14px 45px rgba(var(--rgb-primary),.32), 0 6px 16px rgba(var(--rgb-accent),.2);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.55s cubic-bezier(0.23, 1, 0.32, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(180deg, #0c0a1d 0%, #1e1b4b 45%, #0f766e 100%);
    caret-color: var(--color-accent);
    --color-text: #f1f5f9;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 2px 10px rgba(var(--rgb-primary), 0.35); }
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, rgba(124,58,237,0.18) 0%, rgba(16,185,129,0.12) 50%, rgba(236,72,153,0.1) 100%);
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, rgba(124,58,237,0.4), rgba(16,185,129,0.4), rgba(236,72,153,0.4)) 1;
}
.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: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    border: 2px solid transparent;
    border-image: linear-gradient(90deg, #7c3aed, #10b981) 1;
}
a:not([class]) { color: var(--color-accent); 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; }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 16s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); filter: hue-rotate(0deg); } 50% { filter: hue-rotate(90deg); } 100% { transform: translateX(-50%); filter: hue-rotate(0deg); } }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* 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; text-shadow: 0 3px 12px rgba(var(--rgb-primary), 0.5); color: var(--color-accent); }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(90deg, #7c3aed 0%, #ec4899 50%, #10b981 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    box-shadow: var(--shadow-lg);
    color: white;
}

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-primary); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.6); }
.card { border-left: 4px solid; border-image: linear-gradient(to bottom, #7c3aed, #10b981, #f59e0b) 1; }
header, .header, .navbar { 
    box-shadow: 0 4px 12px rgba(var(--rgb-primary), 0.25), 0 1px 4px rgba(0,0,0,0.15); 
    backdrop-filter: blur(10px);
    background: linear-gradient(to right, rgba(12,10,29,0.9), rgba(30,27,75,0.9));
}

/* 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; }
}