/* CSSVariantEngine v3.0 — qipai-wap.com.cn */
/* Palette: deep-slate | Radius: soft-rounded | Shadow: layered-ambient */
/* Spacing: tight | Transition: smooth */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"overlay","testimonials":"grid-3","partners":"scroll","faq":"with-sidebar","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #1e40af;
    --color-accent: #38bdf8;
    --color-surface: #f1f5f9;
    --color-text: #0f172a;
    --color-sidebar: #252e3a;
    --rgb-primary: 59,130,246;
    --rgb-accent: 56,189,248;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 3px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.04);
    --shadow-md: 0 4px 10px -2px rgba(15,23,42,.12), 0 2px 4px -1px rgba(15,23,42,.06), inset 0 1px 0 rgba(255,255,255,.6);
    --shadow-lg: 0 12px 28px -6px rgba(30,64,175,.22), 0 6px 12px -4px rgba(15,23,42,.1), inset 0 1px 0 rgba(255,255,255,.5);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 45%, #e2e8f0 100%);
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: #0b1220;
}
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background: linear-gradient(180deg, rgba(255,255,255,.4) 0%, rgba(241,245,249,.2) 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%, #f8fafc 55%, #eef2f7 100%);
    border: 1px solid rgba(59,130,246,.12);
}
.card:hover, [class*="card"]:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(56,189,248,.35);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1e40af 100%);
    color: #ffffff;
    box-shadow: 0 6px 16px -4px rgba(37,99,235,.45), inset 0 1px 0 rgba(255,255,255,.25);
    border: 1px solid rgba(30,64,175,.4);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    background: linear-gradient(135deg, #38bdf8 0%, #3b82f6 55%, #2563eb 100%);
    box-shadow: 0 10px 24px -6px rgba(56,189,248,.55), inset 0 1px 0 rgba(255,255,255,.35);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
}
a:not([class]):hover { color: var(--color-accent); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero {
                    position: relative;
                    min-height: 70vh;
                    display: flex;
                    align-items: center;
                    background: linear-gradient(135deg, #252e3a 0%, #1e293b 40%, #0f172a 75%, #1e40af 100%);
                    color: #e2e8f0;
                }
                .hero::after {
                    content: "";
                    position: absolute;
                    inset: 0;
                    background: radial-gradient(circle at 75% 25%, rgba(56,189,248,.22) 0%, rgba(59,130,246,.08) 35%, transparent 70%);
                    pointer-events: none;
                }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s 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;
                }
                .faq-wrapper > *:last-child {
                    background: linear-gradient(160deg, #252e3a 0%, #1e293b 60%, #172033 100%);
                    color: #e2e8f0;
                    border-radius: var(--radius-lg);
                    box-shadow: 0 14px 30px -8px rgba(15,23,42,.5), inset 0 1px 0 rgba(255,255,255,.08);
                    padding: var(--space-card);
                }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * {
    background: linear-gradient(150deg, #ffffff 0%, #eef2f7 100%);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--space-card);
    border: 1px solid rgba(59,130,246,.1);
}

/* cta: split */
.cta-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
    background: linear-gradient(120deg, #1e40af 0%, #2563eb 45%, #38bdf8 100%);
    border-radius: var(--radius-xl);
    box-shadow: 0 18px 40px -10px rgba(37,99,235,.5), inset 0 1px 0 rgba(255,255,255,.2);
    color: #f8fafc;
    padding: var(--space-card);
}

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-primary); }
.card {
    border-image: linear-gradient(180deg, #3b82f6 0%, #38bdf8 100%) 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; }
}