/* CSSVariantEngine v3.0 — 999caipiao.org.cn */
/* Palette: lagoon | Radius: pill-soft | Shadow: teal-tinted */
/* Spacing: tight | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"left-aligned","testimonials":"carousel","partners":"scroll","faq":"with-sidebar","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0b4f4a;
    --color-accent: #f59e0b;
    --color-surface: #f0fdfa;
    --color-text: #1f2a37;
    --rgb-primary: 15,118,110;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --shadow-sm: 0 1px 2px rgba(15,118,110,.16), 0 5px 12px -4px rgba(15,118,110,.12);
    --shadow-md: 0 2px 4px rgba(15,118,110,.12), 0 12px 26px -8px rgba(15,118,110,.18);
    --shadow-lg: 0 8px 18px -6px rgba(15,118,110,.18), 0 28px 54px -14px rgba(20,184,166,.30);
    --gradient-primary: linear-gradient(135deg, #0f766e 0%, #14b8a6 48%, #5eead4 100%);
    --gradient-accent: linear-gradient(120deg, #f59e0b 0%, #fb923c 52%, #fde047 100%);
    --gradient-surface: radial-gradient(circle at 12% 8%, rgba(94,234,212,.28) 0%, rgba(240,253,250,0) 44%), linear-gradient(172deg, #f0fdfa 0%, #f8fafc 56%, #ecfeff 100%);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 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-color: var(--color-surface);
    background-image: var(--gradient-surface);
    caret-color: var(--color-primary);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.75); }
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-image: linear-gradient(158deg, #ffffff 0%, #f7fffd 56%, #eafcf8 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background-image: linear-gradient(135deg, rgba(15,118,110,.10) 0%, rgba(20,184,166,.18) 52%, rgba(245,158,11,.16) 100%);
    box-shadow: 0 1px 2px rgba(15,118,110,.14), 0 8px 18px -8px rgba(20,184,166,.42);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 0 rgba(255,255,255,.55); }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* 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; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-accent); }

/* 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; }
}