/* CSSVariantEngine v3.0 — zh-kaiyuanqipaishiwan.gd.cn */
/* Palette: teal-amber gradient | Radius: soft rounded | Shadow: multi-layer tinted */
/* Spacing: comfortable | Transition: smooth long */
/* Section layouts: {"news":"grid-4","features":"centered","hero":"minimal","testimonials":"masonry","partners":"scroll","faq":"with-sidebar","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #f59e0b;
    --color-surface: #fffbeb;
    --color-text: #134e4a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(13,148,136,.08), 0 1px 3px rgba(13,148,136,.04);
    --shadow-md: 0 8px 24px rgba(13,148,136,.12), 0 3px 8px rgba(13,148,136,.08);
    --shadow-lg: 0 16px 48px rgba(13,148,136,.18), 0 6px 16px rgba(245,158,11,.1);
    --space-section: 4.2rem;
    --space-card: 1.6rem;
    --space-gap: 1.4rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 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, #ffffff 0%, #fffbeb 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section);
    background-attachment: fixed;
}
.section:nth-child(odd) {
    background: linear-gradient(180deg, #ffffff 0%, #f0fdfa 100%);
}
.section:nth-child(even) {
    background: linear-gradient(180deg, #fffbeb 0%, #fef3c7 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%, #f0fdfa 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-image: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%) 1;
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition);
    text-underline-offset: 3px;
}

/* ========== 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: 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: minimal */
.hero { padding: 2rem 0; background: linear-gradient(90deg, #0f766e 0%, #14b8a6 50%, #f59e0b 100%); color: white; } 
.hero-content { max-width: 560px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 28s 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; }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-section { background: linear-gradient(180deg, #134e4a 0%, #0f766e 100%); color: white; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(245,158,11,.3); }
.card { 
    border-left: 3px solid;
    border-image: linear-gradient(180deg, #0d9488 0%, #f59e0b 100%) 1;
}
header, .header, .navbar { 
    box-shadow: 0 4px 16px rgba(13,148,136,.1), 0 1px 4px rgba(245,158,11,.05); 
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

/* 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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}