@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&display=swap";
:root{--hue-primary:158;--hue-accent:195;--hue-danger:12;--color-bg:#0f1115;--color-surface:#181a21;--color-surface-2:#23272f;--color-border:#303540;--color-primary:#22d392;--color-primary-dim:#227758;--color-accent:#30bae8;--color-danger:#ef5d39;--color-warning:#fac038;--color-text:#e7e9ef;--color-text-muted:#8790a1;--font-sans:"Inter",system-ui,sans-serif;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--transition-fast:.12s ease;--transition-med:.25s cubic-bezier(.4,0,.2,1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);min-height:100vh;line-height:1.7}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}.navbar{z-index:100;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--color-border);background:#0f1016d1;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;max-width:1100px;margin:0 auto;padding:1rem 1.5rem;display:flex}.navbar-logo{background:linear-gradient(90deg,var(--color-primary),var(--color-accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.1rem;font-weight:700;text-decoration:none}.navbar-tagline{color:var(--color-text-muted);font-size:.78rem;display:none}@media (min-width:600px){.navbar-tagline{display:block}}.hero{text-align:center;padding:3rem 1.5rem 2rem}.hero-badge{background:var(--color-primary-dim);color:var(--color-primary);letter-spacing:.08em;text-transform:uppercase;border-radius:999px;align-items:center;gap:.4rem;margin-bottom:1rem;padding:.3rem .85rem;font-size:.72rem;font-weight:600;display:inline-flex}.hero-title{letter-spacing:-.02em;margin-bottom:.75rem;font-size:clamp(1.8rem,5vw,3.2rem);font-weight:900;line-height:1.15}.hero-title span{background:linear-gradient(135deg,var(--color-primary),var(--color-accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero-sub{color:var(--color-text-muted);max-width:560px;margin:0 auto 1.5rem;font-size:1.05rem}.score-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);flex-direction:column;align-items:center;margin:1rem auto 2rem;padding:1.5rem 2.5rem;display:inline-flex;position:relative;overflow:hidden}.score-card:before{content:"";pointer-events:none;background:radial-gradient(at 50% 0,#22d3921f 0%,#0000 70%);position:absolute;inset:0}.score-label{letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:.35rem;font-size:.7rem;font-weight:600}.score-value{color:var(--color-primary);font-size:3.5rem;font-weight:900;line-height:1}.score-denom{color:var(--color-text-muted);font-size:1.2rem;font-weight:500}.content-grid{grid-template-columns:1fr;gap:1.5rem;max-width:1100px;margin:0 auto;padding:0 1.5rem 4rem;display:grid}@media (min-width:900px){.content-grid{grid-template-columns:1fr 360px}}.article-body{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:2rem}.article-body h2{color:var(--color-text);margin:1.5rem 0 .75rem;font-size:1.4rem;font-weight:700}.article-body h3{color:var(--color-primary);margin:1.25rem 0 .5rem;font-size:1.1rem;font-weight:600}.article-body p{color:var(--color-text-muted);margin-bottom:1rem}.article-body ul,.article-body ol{color:var(--color-text-muted);margin-bottom:1rem;padding-left:1.35rem}.article-body li{margin-bottom:.35rem}.sidebar{flex-direction:column;gap:1.25rem;display:flex}.aqi-widget{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem;position:relative;overflow:hidden}.aqi-widget:after{content:"";pointer-events:none;background:radial-gradient(circle,#30bae826 0%,#0000 70%);border-radius:50%;width:120px;height:120px;position:absolute;bottom:-30px;right:-30px}.aqi-title{letter-spacing:.1em;text-transform:uppercase;color:var(--color-accent);align-items:center;gap:.5rem;margin-bottom:1rem;font-size:.72rem;font-weight:700;display:flex}.aqi-title:before{content:"◉";font-size:.6rem;animation:2s infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.3}}.aqi-row{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:.6rem 0;display:flex}.aqi-row:last-child{border-bottom:none}.aqi-metric{color:var(--color-text-muted);font-size:.82rem}.aqi-val{font-size:.95rem;font-weight:700}.aqi-val-good{color:var(--color-primary)}.aqi-val-moderate{color:var(--color-warning)}.aqi-val-poor{color:var(--color-danger)}.skeleton{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem}.skeleton-line{background:linear-gradient(90deg,var(--color-surface-2)25%,var(--color-border)50%,var(--color-surface-2)75%);background-size:200% 100%;border-radius:6px;height:12px;margin-bottom:.75rem;animation:1.5s infinite shimmer}.skeleton-line:first-child{width:55%}.skeleton-line:nth-child(2){width:80%}.skeleton-line:nth-child(3){width:65%}.skeleton-line:nth-child(4){width:70%}.skeleton-line:nth-child(5){width:45%}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.alert-box{border-radius:var(--radius-md);border-left:4px solid;align-items:flex-start;gap:.75rem;margin:1.25rem 0;padding:1rem 1.25rem;font-size:.9rem;display:flex}.alert-box-warning{border-color:var(--color-warning);color:#fde7b4;background:#fac03814}.alert-box-danger{border-color:var(--color-danger);color:#f9c5b8;background:#ef5d3914}.alert-box-info{border-color:var(--color-accent);color:#bae8f7;background:#30bae814}.alert-box-success{border-color:var(--color-primary);color:#bdf4e0;background:#22d39214}.alert-icon{flex-shrink:0;margin-top:.05rem;font-size:1.1rem}.ad-slot{background:var(--color-surface);border:1px dashed var(--color-border);border-radius:var(--radius-md);width:100%;min-height:90px;color:var(--color-text-muted);letter-spacing:.05em;justify-content:center;align-items:center;font-size:.72rem;display:flex}.bullet-list{flex-direction:column;gap:.6rem;margin:1rem 0;padding:0;list-style:none;display:flex}.bullet-list li{background:var(--color-surface-2);border-radius:var(--radius-sm);border:1px solid var(--color-border);color:var(--color-text);align-items:flex-start;gap:.6rem;padding:.6rem .9rem;font-size:.9rem;display:flex}.bullet-list li:before{content:"▶";color:var(--color-primary);flex-shrink:0;margin-top:.28rem;font-size:.55rem}.article-body .table-wrapper,.article-body table{-webkit-overflow-scrolling:touch;width:100%;display:block;overflow-x:auto}.article-body table{border-collapse:collapse;border-radius:var(--radius-md);min-width:320px;font-size:.875rem;overflow:hidden}.article-body thead{background:var(--color-surface-2)}.article-body th{text-align:left;letter-spacing:.06em;text-transform:uppercase;color:var(--color-primary);border-bottom:2px solid var(--color-border);white-space:nowrap;padding:.65rem 1rem;font-size:.75rem;font-weight:600}.article-body td{border-bottom:1px solid var(--color-border);color:var(--color-text-muted);vertical-align:top;padding:.6rem 1rem}.article-body tr:last-child td{border-bottom:none}.article-body tbody tr:hover td{background:var(--color-surface-2);color:var(--color-text)}.breadcrumb{color:var(--color-text-muted);align-items:center;gap:.5rem;max-width:1100px;margin:0 auto;padding:1rem 1.5rem;font-size:.76rem;display:flex}.breadcrumb a{color:var(--color-primary);transition:color var(--transition-fast);text-decoration:none}.breadcrumb a:hover{color:var(--color-accent)}.breadcrumb-sep{color:var(--color-border)}.footer{border-top:1px solid var(--color-border);text-align:center;color:var(--color-text-muted);padding:2rem 1.5rem;font-size:.8rem}.city-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;max-width:1100px;margin:0 auto;padding:2rem 1.5rem 4rem;display:grid}.city-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-med),transform var(--transition-med);flex-direction:column;gap:.35rem;padding:1.25rem;text-decoration:none;display:flex}.city-card:hover{border-color:var(--color-primary);transform:translateY(-3px)}.city-card-name{color:var(--color-text);font-size:1rem;font-weight:700}.city-card-meta{color:var(--color-text-muted);font-size:.76rem}.city-card-score{background:var(--color-primary-dim);color:var(--color-primary);border-radius:999px;align-self:flex-start;margin-top:.5rem;padding:.2rem .6rem;font-size:.8rem;font-weight:600}