:root{--bg:#f4f9fb;--surface:#fff;--ink:#15323d;--muted:#5f747c;--brand:#087f8c;--brand2:#20a4a9;--accent:#e8a838;--line:#d7e6e9;--ok:#207a4b;--warn:#9a6500;--bad:#a93737;--shadow:0 12px 32px rgba(17,63,74,.10);--radius:18px;--max:1180px;color-scheme:light}
[data-theme="dark"]{--bg:#0f2027;--surface:#172d35;--ink:#eaf7f8;--muted:#a9c0c5;--brand:#58d0d6;--brand2:#8ee4df;--accent:#ffd17a;--line:#294852;--shadow:0 12px 32px rgba(0,0,0,.25);color-scheme:dark}
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var(--line)}.header-row{min-height:70px;display:flex;align-items:center;gap:18px}.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;text-decoration:none;font-size:1.2rem}.logo-mark{width:38px;height:38px;border-radius:50% 50% 46% 54%;background:linear-gradient(145deg,var(--brand2),var(--brand));display:grid;place-items:center;color:white;box-shadow:var(--shadow)}nav{margin-left:auto}.nav-list{display:flex;gap:18px;align-items:center;list-style:none;margin:0;padding:0}.nav-list a{text-decoration:none;color:var(--ink);font-weight:700}.header-actions{display:flex;gap:8px}.icon-btn{width:44px;padding:0;background:var(--surface);border-color:var(--line);color:var(--ink)}.menu-btn{display:none}.hero{padding:56px 0 28px;background:radial-gradient(circle at 85% 10%,rgba(32,164,169,.22),transparent 38%),linear-gradient(180deg,var(--surface),var(--bg))}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}.eyebrow{color:var(--brand);font-weight:900;letter-spacing:.06em;text-transform:uppercase;font-size:.82rem}.hero h1{font-size:clamp(2.2rem,6vw,4.7rem);line-height:1.03;margin:.15em 0 .3em;letter-spacing:-.045em}.lead{font-size:1.17rem;color:var(--muted);max-width:70ch}.hero-card,.card,.tool-panel,.result-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:22px}.air-visual{min-height:300px;display:grid;place-items:center;position:relative;overflow:hidden}.air-orb{width:220px;height:220px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#dffcff,var(--brand2) 48%,var(--brand));box-shadow:0 0 0 28px rgba(32,164,169,.08),0 0 0 60px rgba(32,164,169,.05);display:grid;place-items:center;color:white;font-size:3.5rem}.air-line{position:absolute;width:65%;height:26px;border-top:4px solid var(--accent);border-radius:50%;opacity:.75}.air-line.one{transform:translateY(-92px)}.air-line.two{transform:translateY(92px) scaleX(.75)}.section{padding:44px 0}.section h2{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.15;margin:0 0 12px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{padding:22px}.card h3{margin:.2rem 0 .5rem}.card-icon{font-size:1.8rem}.tool-shell{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:24px;align-items:start}.tool-panel{padding:24px}.tool-panel form{display:grid;gap:16px}.field{display:grid;gap:6px}.field label{font-weight:750}.field small{color:var(--muted)}input,select,textarea{width:100%;min-height:46px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);padding:.7rem .8rem}input:focus,select:focus,textarea:focus,button:focus,a:focus{outline:3px solid color-mix(in srgb,var(--brand) 35%,transparent);outline-offset:2px}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.actions{display:flex;flex-wrap:wrap;gap:10px}.result-card{padding:20px;position:sticky;top:90px}.result-card h2{font-size:1.25rem}.result-main{font-size:2rem;font-weight:900;color:var(--brand);margin:.25rem 0}.status{border-left:4px solid var(--brand);padding:.8rem 1rem;background:color-mix(in srgb,var(--brand) 8%,var(--surface));border-radius:0 10px 10px 0}.status.error{border-color:var(--bad);color:var(--bad)}.status.warn{border-color:var(--warn)}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.metric{padding:12px;border:1px solid var(--line);border-radius:12px}.metric strong{display:block;font-size:1.2rem}.breadcrumbs{font-size:.9rem;color:var(--muted);padding-top:18px}.content{max-width:820px}.content h2{margin-top:2.2rem}.content table{width:100%;border-collapse:collapse}.content th,.content td{border:1px solid var(--line);padding:.65rem;text-align:left}.notice{padding:16px;border-radius:14px;background:#fff6df;color:#5a4300;border:1px solid #edd59a}.ad-slot{min-height:120px;border:1px dashed var(--line);display:grid;place-items:center;color:var(--muted);border-radius:14px;margin:24px 0;background:color-mix(in srgb,var(--surface) 80%,transparent)}.list-clean{list-style:none;padding:0}.list-clean li{padding:.7rem 0;border-bottom:1px solid var(--line)}.data-table{overflow:auto}.data-table table{min-width:720px;width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:.65rem;border-bottom:1px solid var(--line);text-align:left}.check-item{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:12px;margin:8px 0}.check-item input{width:auto;min-height:auto;margin-top:5px}.site-footer{border-top:1px solid var(--line);padding:36px 0;margin-top:30px;background:var(--surface)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:.35rem 0}.badge{display:inline-flex;align-items:center;gap:6px;padding:.3rem .6rem;border-radius:999px;background:color-mix(in srgb,var(--brand) 12%,var(--surface));font-size:.84rem;font-weight:700}.print-only{display:none}
@media(max-width:900px){.hero-grid,.tool-shell{grid-template-columns:1fr}.result-card{position:static}.grid{grid-template-columns:repeat(2,1fr)}.menu-btn{display:inline-grid;place-items:center}.nav-list{display:none;position:absolute;left:0;right:0;top:70px;background:var(--surface);padding:16px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.nav-list.open{display:flex}}
@media(max-width:620px){.wrap{width:min(100% - 22px,var(--max))}.hero{padding-top:34px}.grid,.grid.two,.form-row,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:2.45rem}.header-row{gap:8px}.logo span:last-child{display:none}.air-visual{min-height:240px}.air-orb{width:170px;height:170px}.tool-panel{padding:17px}.actions>*{width:100%}.metric-grid{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}