/* CSSVariantEngine v3.0 — kaiyun-pb.com.cn */
/* Palette: deep teal + amber | Radius: soft-round | Shadow: layered-lift */
/* Spacing: tight | Transition: long-smooth */
/* Section layouts: {"news":"grid-3","features":"centered","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"with-sidebar","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f5f5a;
    --color-accent: #f59e0b;
    --color-surface: #f2f6f8;
    --color-text: #1c2733;
    --color-sidebar: #252e3a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(37,46,58,.12), 0 3px 8px -2px rgba(13,148,136,.10);
    --shadow-md: 0 2px 5px rgba(37,46,58,.10), 0 12px 26px -10px rgba(13,148,136,.26);
    --shadow-lg: 0 8px 18px -4px rgba(37,46,58,.16), 0 28px 52px -18px rgba(15,95,90,.42);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.22, 0.68, 0.32, 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-color: #eef4f6;
    background-image: linear-gradient(165deg, #f8fbfc 0%, #eaf2f4 42%, #dfeaee 78%, #d8e5ea 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #14212b; }
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); }
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    color: #f0fdfa;
    background-image: linear-gradient(135deg, #14b8a6 0%, #0d9488 45%, #0f5f5a 100%);
    box-shadow: 0 1px 2px rgba(37,46,58,.18), 0 10px 22px -10px rgba(13,148,136,.55);
    border-color: rgba(var(--rgb-accent), .35);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* 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: left-aligned */
.hero-content { text-align: left; max-width: 600px; text-shadow: 0 1px 0 rgba(255,255,255,.18), 0 2px 14px rgba(0,0,0,.28); }

/* 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;
                    background-image: linear-gradient(90deg, rgba(37,46,58,.05) 0%, rgba(13,148,136,.06) 50%, rgba(245,158,11,.05) 100%);
                    border-radius: var(--radius-md);
                }
                @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;
                    border-radius: var(--radius-lg);
                    background-image: linear-gradient(125deg, rgba(37,46,58,.055) 0%, rgba(13,148,136,.07) 55%, rgba(245,158,11,.05) 100%);
                }

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

/* cta: split */
.cta-inner {
    display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem;
    border-radius: var(--radius-xl);
    background-image: linear-gradient(115deg, #252e3a 0%, #1d3b3d 38%, #0f5f5a 78%, #0d9488 100%);
    box-shadow: var(--shadow-lg);
    color: #ecfdf8;
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(var(--rgb-accent), .22);
}
.hero, [class*="hero"], section:first-of-type {
    background: linear-gradient(135deg, #252e3a 0%, #1d2f3a 28%, #134e4a 62%, #0f766e 84%, #0d9488 100%);
    color: #ecfdf8;
}
.card {
    border: 1px solid transparent;
    background-image: linear-gradient(155deg, #ffffff 0%, #f5fafb 40%, #eaf3f5 100%), linear-gradient(135deg, rgba(13,148,136,.60) 0%, rgba(37,46,58,.16) 52%, rgba(245,158,11,.42) 100%);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    box-shadow: var(--shadow-sm);
}

/* 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; }
}