/* CSSVariantEngine v3.0 — siludianjing.org.cn */
/* Palette: gradient-rich asymmetric blocks | Radius: uneven mixed | Shadow: multi-layer colorful */
/* Spacing: mixed tight/loose | Transition: smooth 0.5s cubic-bezier */
/* Section layouts: {"news":"list-view","features":"grid-2","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"inline","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #ec4899;
    --color-surface: linear-gradient(145deg, #ffffff 0%, #f5f3ff 50%, #fdf2f8 100%);
    --color-text: #1e1b4b;
    --rgb-primary: 124,58,237;
    --rgb-accent: 236,72,153;
    --radius-sm: 4px 18px 4px 18px;
    --radius-md: 14px 36px 14px 36px;
    --radius-lg: 22px 52px 22px 52px;
    --radius-xl: 34px 72px 34px 72px;
    --shadow-sm: 3px 5px 10px rgba(124, 58, 237, 0.18), -1px -2px 6px rgba(236, 72, 153, 0.1);
    --shadow-md: 5px 10px 20px rgba(236, 72, 153, 0.22), -2px -3px 8px rgba(124, 58, 237, 0.12);
    --shadow-lg: 10px 18px 36px rgba(124, 58, 237, 0.28), -4px -6px 14px rgba(236, 72, 153, 0.18);
    --space-section: 2.2rem;
    --space-card: 1.2rem;
    --space-gap: 0.8rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(135deg, #fdf4ff 0%, #fce7f3 100%);
}
h1, h2, h3, h4 { 
    font-weight: var(--heading-weight); 
    background: linear-gradient(90deg, #7c3aed 0%, #ec4899 50%, #f59e0b 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
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: var(--color-surface);
    border: 3px solid;
    border-image: linear-gradient(45deg, #7c3aed, #ec4899, #f59e0b) 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: linear-gradient(90deg, #7c3aed 0%, #ec4899 100%);
    color: #ffffff;
    border: none;
    font-weight: 600;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    background: linear-gradient(90deg, #ec4899 0%, #f59e0b 100%);
    transform: scale(1.03);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    background: linear-gradient(90deg, #7c3aed, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration-thickness: 2px;
}
a:not([class]):hover {
    filter: brightness(1.2);
}

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { 
                    display: grid; 
                    grid-template-columns: 280px 1fr; 
                    background: linear-gradient(90deg, #f0abfc 0%, #fbcfe8 100%);
                    border-image: linear-gradient(180deg, #ec4899, #7c3aed) 1;
                }

/* features: grid-2 */
.feature-list { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); 
    gap: calc(var(--space-gap) * 1.5); 
}
.feature-list .card {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-image: linear-gradient(45deg, #f59e0b, #7c3aed) 1;
    box-shadow: var(--shadow-sm);
}

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-inner {
    background: radial-gradient(circle at top left, rgba(124,58,237,0.1) 0%, transparent 60%);
}

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.testimonial-list .card {
    background: linear-gradient(225deg, #dbeafe 0%, #bfdbfe 100%);
    border-image: linear-gradient(-45deg, #3b82f6, #ec4899) 1;
}

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 18s ease-in-out infinite; }
                .partner-grid > * {
                    padding: 1rem 2rem;
                    border-radius: var(--radius-sm);
                    background: linear-gradient(135deg, #ffffff 0%, #f5f3ff 100%);
                    border: 2px solid;
                    border-image: linear-gradient(90deg, #7c3aed, #ec4899) 1;
                }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 50% { transform: translateX(-25%); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card {
    background: linear-gradient(180deg, #dcfce7 0%, #bbf7d0 100%);
    border-image: linear-gradient(0deg, #10b981, #7c3aed) 1;
}

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid > * {
                    padding: 1.5rem;
                    border-radius: var(--radius-md);
                    background: linear-gradient(135deg, #fef3c7 0%, #fbcfe8 100%);
                    border: 3px solid;
                    border-image: linear-gradient(45deg, #f59e0b, #ec4899) 1;
                    box-shadow: var(--shadow-sm);
                }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #f59e0b 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    box-shadow: var(--shadow-lg);
    color: #ffffff;
}
.cta-inner h1, .cta-inner h2, .cta-inner h3, .cta-inner h4 {
    color: #ffffff;
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
}

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

/* 条件性装饰 */
header, .header, .navbar { 
    background: linear-gradient(90deg, rgba(124,58,237,0.08) 0%, rgba(236,72,153,0.08) 100%); 
    backdrop-filter: blur(10px);
    border-bottom: 3px solid;
    border-image: linear-gradient(90deg, #7c3aed, #ec4899, #f59e0b, #7c3aed) 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: 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; }
}