/* CSSVariantEngine v3.0 — page-ch-kaiyun.com.cn */
/* Palette: neon-dusk | Radius: medium glow | Shadow: luminous */
/* Spacing: comfortable | Transition: glide */
/* Section layouts: {"news":"grid-4","features":"grid-4","hero":"overlay","testimonials":"carousel","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #e9216f;
    --color-primary-dark: #b9145a;
    --color-accent: #31e1f2;
    --color-surface: #111b35;
    --color-text: #e6eefc;
    --rgb-primary: 233,33,111;
    --rgb-accent: 49,225,242;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 16px rgba(var(--rgb-accent), 0.12), 0 2px 8px rgba(0,0,0,0.35);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.28), 0 6px 16px rgba(0,0,0,0.45);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.45), 0 14px 30px rgba(0,0,0,0.55);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
    caret-color: var(--color-accent);
    accent-color: var(--color-primary);
}

/* 基础覆盖 */
body {
    background-color: #070b18;
    background-image: radial-gradient(ellipse at 20% 0%, rgba(var(--rgb-primary), 0.12), transparent 50%), radial-gradient(ellipse at 80% 100%, rgba(var(--rgb-accent), 0.1), transparent 50%);
    color: var(--color-text);
    line-height: var(--body-line-height);
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: #f8fbff;
    text-shadow: 0 0 20px rgba(var(--rgb-primary), 0.15);
}
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-color: var(--color-surface);
    background-image: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
    border: 1px solid rgba(var(--rgb-accent), 0.16);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    box-shadow: 0 0 18px rgba(var(--rgb-primary), 0.25);
    border: 1px solid rgba(var(--rgb-accent), 0.35);
    color: #fff;
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 0 12px rgba(var(--rgb-primary), 0.3);
}

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--space-gap) * 0.8);
}

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 15% 30%, rgba(var(--rgb-primary), 0.3), transparent 45%), radial-gradient(circle at 85% 70%, rgba(var(--rgb-accent), 0.25), transparent 50%), linear-gradient(135deg, #0b102b 0%, #151a3a 100%);
    border-bottom: 1px solid rgba(var(--rgb-accent), 0.2);
}
.hero-content {
    position: relative;
    z-index: 1;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list {
    display: flex;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.12);
} 
.testimonial-list > * {
    flex: 0 0 100%;
}

/* partners: scroll */
/* 自动滚动 */
.partner-grid {
    display: flex;
    gap: 2rem;
    overflow: hidden;
    animation: partnerScroll 26s linear infinite;
    mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
@keyframes partnerScroll {
    0% {
        transform: translateX(0);
        filter: brightness(1);
    }
    50% {
        transform: translateX(-25%);
        filter: brightness(1.15);
    }
    100% {
        transform: translateX(-50%);
        filter: brightness(1);
    }
}

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

/* stats: grid-4 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-gap);
    text-align: center;
}

/* cta: card-style */
.cta-inner {
    background: linear-gradient(135deg, #1a1040 0%, #3d0b3f 50%, #0e2a3a 100%);
    border-radius: var(--radius-xl);
    padding: 3.5rem;
    text-align: center;
    border: 1px solid rgba(var(--rgb-accent), 0.3);
    box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.35), inset 0 0 24px rgba(var(--rgb-primary), 0.12);
    animation: glowPulse 5s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.25), 0 0 8px rgba(var(--rgb-primary), 0.2);
    }
    50% {
        box-shadow: 0 0 44px rgba(var(--rgb-accent), 0.5), 0 0 18px rgba(var(--rgb-primary), 0.35);
    }
}

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main {
    max-width: 860px;
    margin: 0 auto;
    background: rgba(8, 12, 28, 0.4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 14px 30px rgba(0,0,0,0.6);
    border-color: rgba(var(--rgb-accent), 0.45);
}
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.5);
}
.card {
    border-left: 3px solid var(--color-primary);
}
header, .header, .navbar {
    background: rgba(8, 12, 28, 0.55);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(var(--rgb-accent), 0.12);
}

/* 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: 2.25rem;
        --space-card: 1.125rem;
        --space-gap: 0.875rem;
    }
    .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; }
}