/* CSSVariantEngine v3.0 — refreshed visual pass */
/* Palette: teal-ember | Radius: medium | Shadow: glow */
/* Spacing: comfortable | Transition: eased */
/* Section layouts: {"news":"grid-4","features":"centered","hero":"centered","testimonials":"masonry","partners":"scroll","faq":"two-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #134e4a;
    --color-accent: #f97316;
    --color-surface: #ecf8f5;
    --color-text: #18313a;
    --rgb-primary: 15,118,110;
    --rgb-accent: 249,115,22;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 4px rgba(9,18,26,.10), 0 0 0 1px rgba(var(--rgb-primary),.10);
    --shadow-md: 0 12px 24px rgba(9,18,26,.14), 0 0 20px rgba(var(--rgb-primary),.16), 0 0 24px rgba(var(--rgb-accent),.12);
    --shadow-lg: 0 20px 40px rgba(9,18,26,.20), 0 0 28px rgba(var(--rgb-primary),.24), 0 0 40px rgba(var(--rgb-accent),.20);
    --space-section: 3.75rem;
    --space-card: 1.4rem;
    --space-gap: 1.15rem;
    --transition: 240ms cubic-bezier(.2,.8,.2,1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at top, #f9fffd 0%, #edf8f4 40%, #ddebe6 100%); caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.5), 0 10px 22px rgba(9,18,26,.10); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { background: linear-gradient(180deg, rgba(250,255,253,.96) 0%, rgba(232,245,241,.92) 100%); border-radius: var(--radius-lg); box-shadow: var(--shadow-md), 0 0 0 1px rgba(var(--rgb-accent),.08); padding: var(--space-card); transition: var(--transition); border: 1px solid rgba(var(--rgb-primary),.20); border-style: solid; filter: saturate(1.05) contrast(1.02); backdrop-filter: blur(10px) saturate(1.12); outline: 1px solid rgba(var(--rgb-accent),.08); outline-offset: -1px; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); opacity: .94; }

/* ========== 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) * 0.9); }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 1.9); max-width: 720px; margin: 0 auto; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: calc(var(--space-gap) * 1.05); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 1.75rem; overflow: hidden; animation: partnerScroll 24s cubic-bezier(.45,0,.55,1) infinite; filter: drop-shadow(0 0 16px rgba(var(--rgb-accent),.16)); }
                @keyframes partnerScroll { 0% { transform: translateX(0); opacity: .96; } 50% { opacity: 1; } 100% { transform: translateX(-50%); opacity: .96; } }
                @keyframes softGlow { 0%, 100% { box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 0 18px rgba(var(--rgb-primary),.10), 0 0 28px rgba(var(--rgb-accent),.12); } 50% { box-shadow: inset 0 1px 0 rgba(255,255,255,.14), 0 0 28px rgba(var(--rgb-primary),.18), 0 0 42px rgba(var(--rgb-accent),.22); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.05); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #134e4a 0%, #0f766e 72%, #f97316 100%); color: #f7fffd; padding: 4rem 2rem; text-shadow: 0 1px 0 rgba(0,0,0,.18); box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 0 0 1px rgba(255,255,255,.06), 0 0 32px rgba(var(--rgb-accent),.18); animation: softGlow 8s ease-in-out infinite; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 14px rgba(var(--rgb-accent),.32); opacity: 1; }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f766e 0%, #134e4a 52%, #ea580c 100%); color: #f8fffd; box-shadow: inset 0 1px 0 rgba(255,255,255,.10), 0 0 32px rgba(var(--rgb-primary),.16); animation: softGlow 8s ease-in-out infinite; }
.card { border: 1px solid rgba(var(--rgb-primary),.16); }

/* 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: 1.05rem; --space-gap: 0.85rem; }
    .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; }
}