:root{--bg:#0c1624;--bg2:#12213a;--card:#16294a;--line:#27406a;--tx:#e8eef7;--mu:#9fb2cc;--teal:#2594bd;--red:#e0353f;--steel:#5d6b7c;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]){--bg:#f1f4f8;--bg2:#e3e9f1;--card:#fff;--line:#c3cfe0;--tx:#0f1b2d;--mu:#4a5b73;--teal:#0f6b8f}}
:root[data-theme="dark"]{--bg:#0c1624;--bg2:#12213a;--card:#16294a;--line:#27406a;--tx:#e8eef7;--mu:#9fb2cc;--teal:#2594bd}
*,*:before,*:after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(70px + env(safe-area-inset-top,0px))}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.65 'IBM Plex Sans',Arial,sans-serif}
h1,h2,h3{font-family:'Michroma','Arial Black',sans-serif;font-weight:400;line-height:1.2;margin:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--bg);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 5vw}
header img{height:46px;background:#fff;border-radius:6px;padding:3px 8px;display:block}
nav{display:flex;gap:22px;font-size:14px;overflow-x:auto}
nav a{text-decoration:none;color:var(--mu);white-space:nowrap}
nav a:hover{color:var(--tx)}
section{padding:72px 5vw;max-width:1180px;margin:0 auto}
.hero{padding-top:64px}
.hero h1{font-size:clamp(26px,5vw,52px);max-width:15em}
.hero p{max-width:40em;color:var(--mu);font-size:18px;margin:20px 0 28px}
.btn{display:inline-block;background:var(--red);color:#fff;text-decoration:none;padding:13px 24px;font-weight:600;border-radius:3px;margin-right:12px}
.btn.alt{background:none;border:1px solid var(--line);color:var(--tx)}
.plate{margin-top:36px;height:112px;position:relative;background:linear-gradient(180deg,#8b97a6,#5d6b7c 55%,#47535f);border-radius:3px;overflow:hidden;border:1px solid var(--line)}
.plate .kerf{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--bg);animation:cut 6s ease-in-out infinite}
.plate .kerf:after{content:"";position:absolute;right:-3px;top:-10%;bottom:-10%;width:3px;background:var(--red);box-shadow:0 0 14px 5px rgba(224,53,63,.8)}
.plate span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 12px;font:clamp(13px,2.6vw,22px) 'Michroma','Arial Black',sans-serif;color:#fff;text-shadow:0 1px 6px rgba(0,0,0,.75)}
@keyframes cut{0%{width:0}85%,100%{width:100%}}
.specs{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:28px}
.specs div{background:var(--bg2);padding:18px}
.specs b{display:block;font:20px 'Michroma',sans-serif;color:var(--teal)}
.specs small{color:var(--mu)}
h2{font-size:clamp(20px,3vw,30px);margin-bottom:12px;padding-left:16px;border-left:4px solid var(--red)}
.lead{color:var(--mu);max-width:44em;margin:0 0 30px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:26px}
.ctrl{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:22px}
label{font-size:14px;color:var(--mu);display:block;margin-bottom:6px}
select{background:var(--bg);color:var(--tx);border:1px solid var(--line);padding:10px 14px;font:inherit;border-radius:3px;min-width:170px}
table{width:100%;border-collapse:collapse;font-size:15px}
td,th{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line)}
th{color:var(--mu);font-weight:500;width:42%}
td{font-weight:600}
.note{font-size:14px;color:var(--mu);margin:16px 0 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
details{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:18px 22px}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary:after{content:"+";color:var(--red);font-size:22px;line-height:1}
details[open] summary:after{content:"–"}
details p{color:var(--mu);margin:12px 0 0;font-size:15px}
details b{color:var(--tx)}
.course{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--teal);padding:24px;border-radius:4px}
.course h3{font-size:15px;margin-bottom:10px}
.course p{color:var(--mu);font-size:15px;margin:0 0 12px}
.course em{font-style:normal;color:var(--teal);font-size:14px;font-weight:600}
.tips{columns:2 320px;gap:36px;padding-left:20px;color:var(--mu)}
.tips li{margin-bottom:12px;break-inside:avoid}
.tips b{color:var(--tx)}
.brand{background:#fff;display:flex;justify-content:center;padding:calc(14px + env(safe-area-inset-top,0px)) 5vw 12px;border-bottom:4px solid var(--teal)}
.lockup{display:flex;align-items:center;justify-content:center;gap:clamp(14px,2.4vw,30px);text-decoration:none}
.lockup .emb{height:clamp(70px,12vw,124px);width:auto;display:block}
.lockup .wm{width:clamp(210px,44vw,560px);height:auto;display:block}
@media (max-width:640px){.lockup{flex-direction:column;gap:10px}.lockup .wm{width:min(86vw,360px)}.lockup .emb{height:96px}}
header{justify-content:center;padding:6px 5vw;top:0}
.wa{display:inline-block;background:#1fa855;color:#fff;text-decoration:none;font-weight:600;padding:14px 26px;border-radius:3px;margin-top:6px}
.warn{border-left:4px solid var(--red);background:var(--bg2);padding:16px 20px;margin:24px 0 0;border-radius:3px}
.warn b{color:var(--tx)}
.perf{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:24px;align-items:start}
.perf img{width:100%;border:1px solid var(--line);border-radius:4px;display:block}
.perf figcaption{font-size:13px;color:var(--mu);margin-top:8px}
.tw{overflow-x:auto}
td.g,th.g{background:rgba(37,148,189,.12)}
tr.h th{color:var(--teal);font-weight:600;width:auto;padding-top:20px}
@media (max-width:820px){.perf{grid-template-columns:1fr}}
.sub{margin:30px 0 14px}
.check{max-width:40em;color:var(--mu);font-size:17px;padding-left:22px;margin:0 0 18px}
.check li{margin-bottom:8px}.check b{color:var(--tx)}
tr.real td{background:rgba(37,148,189,.14)}
.perf th{font-size:13px}
footer{border-top:1px solid var(--line);background:var(--bg2);padding:36px 5vw;text-align:center;color:var(--mu);font-size:14px}
footer img{height:54px;background:#fff;border-radius:6px;padding:4px 10px;margin-bottom:12px}
@media (prefers-reduced-motion:reduce){.plate .kerf{animation:none;width:100%}html{scroll-behavior:auto}}
@media (max-width:640px){section{padding:52px 5vw}nav{gap:16px}}
.art{max-width:820px}.art h1{font-size:clamp(22px,4vw,34px);margin-bottom:18px;padding-left:16px;border-left:4px solid var(--red)}
.art h3{font-size:16px;margin:28px 0 8px}.art p,.art li{color:var(--mu)}.art li{margin-bottom:8px}.art b{color:var(--tx)}.art a{color:var(--teal)}
footer a{margin:0 10px;text-decoration:none}footer a:hover{text-decoration:underline}
.more{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px}.more a{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--red);padding:14px 18px;border-radius:3px;text-decoration:none;font-weight:600;font-size:15px}