:root{--blue:#0B5394;--blue2:#0a4680;--panel:#E8F3FC;--cool:#1E88E5;--heat:#E4572E;--ink:#15212B;--text:#2a3540;--mute:#617080;--line:#d9e3ec;--white:#fff;--dark:#0e1a26}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--text);font:400 18px/1.6 "Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
h1,h2,h3{font-family:"Plus Jakarta Sans",system-ui,sans-serif;font-weight:800;color:var(--ink);line-height:1.12;letter-spacing:-.015em;margin:0}
.hc-skip{position:absolute;left:-999px}.hc-skip:focus{left:12px;top:12px;background:#fff;padding:8px;z-index:9}
.hc-wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.hc-kick{font:700 13px/1.2 "Plus Jakarta Sans";letter-spacing:.06em;text-transform:uppercase;color:var(--cool);margin:0 0 10px}
.hc-util{background:var(--dark);color:#c5d3df;font-size:13px}
.hc-urow{display:flex;justify-content:space-between;gap:10px;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.hc-mast{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.hc-mrow{display:flex;align-items:center;gap:22px;padding-top:12px;padding-bottom:12px}
.hc-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:800 21px/1 "Plus Jakarta Sans";flex:none;min-width:0}
.hc-logo b{color:var(--blue)}
.hc-logo small{display:block;font:400 12px/1.3 "Inter";color:var(--mute);margin-top:4px}
.hc-logo svg{width:38px;height:38px}.hc-logo svg rect{fill:var(--blue)}.hc-logo svg path{stroke:#fff;stroke-width:2.4;stroke-linecap:round;fill:none}
.hc-nav{display:flex;flex-wrap:wrap;gap:2px;margin-left:auto}
.hc-nav a{display:flex;align-items:center;min-height:44px;font:600 15px/1 "Inter";color:var(--ink);text-decoration:none;padding:12px 11px;border-radius:6px;white-space:nowrap}
.hc-nav a:hover{background:var(--panel)}.hc-nav a.hc-on{color:var(--blue);background:var(--panel)}
.hc-btn{background:var(--blue);color:#fff;text-decoration:none;font:700 15px/1 "Plus Jakarta Sans";padding:13px 16px;border-radius:8px;white-space:nowrap}
@media (max-width:1000px){.hc-mrow{flex-wrap:wrap}.hc-nav{order:3;width:100%;margin:0}.hc-btn{margin-left:auto}.hc-mast{position:static}}
/* home */
.hc-home{padding-bottom:80px}
.hc-hero{position:relative;min-height:440px;display:flex;align-items:flex-end;overflow:hidden;background:var(--blue2)}
.hc-hero figure{margin:0;position:absolute;inset:0}.hc-hero img{width:100%;height:100%;object-fit:cover}
.hc-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,35,64,.85),rgba(8,35,64,.35) 60%,rgba(8,35,64,.1))}
.hc-htx{position:relative;z-index:2;padding-top:60px;padding-bottom:46px;width:100%}
.hc-htx h1{color:#fff;font-size:clamp(32px,4.6vw,54px);max-width:20ch}
.hc-htx .hc-kick{color:#9fd0ff}
.hc-hcap{color:rgba(255,255,255,.75);font-size:12.5px;margin:14px 0 0}
.hc-sh{font-size:clamp(25px,3vw,32px);margin:46px 0 16px}
.hc-tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.hc-tile{display:flex;align-items:center;gap:14px;text-decoration:none;border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff;box-shadow:0 2px 0 var(--line)}
.hc-tile svg{width:38px;height:38px;flex:none;fill:none;stroke:var(--blue);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;background:var(--panel);border-radius:10px;padding:6px}
.hc-tile b{font:700 17px/1.25 "Plus Jakarta Sans";color:var(--ink)}
.hc-tile:hover{border-color:var(--blue)}
@media (max-width:860px){.hc-tgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.hc-tgrid{grid-template-columns:1fr}}
/* signature: decode your remote */
.hc-remote{margin:46px 0 0;background:var(--panel);border-radius:16px;padding:26px}
.hc-remote.hc-compact{margin:26px 0}
.hc-rh{font-size:clamp(24px,3vw,32px)}
.hc-rsub{color:var(--mute);margin:8px 0 0;max-width:min(52em,900px)}
.hc-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0}
.hc-tab{font:600 14px/1 "Inter";border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 14px;border-radius:99px;cursor:pointer}
.hc-tab.hc-on{background:var(--blue);color:#fff;border-color:var(--blue)}
.hc-rgrid{display:grid;grid-template-columns:300px 1fr;gap:24px;align-items:start}
.hc-handset{background:linear-gradient(#fdfefe,#eef2f5);border:1px solid #cfd8e0;border-radius:36px 36px 46px 46px;padding:22px 18px 26px;box-shadow:0 10px 30px rgba(11,83,148,.15)}
.hc-screen{background:#d7e6d3;border-radius:10px;padding:12px 16px;font:600 40px/1 "Plus Jakarta Sans";color:#24332a;text-align:right;margin-bottom:16px;border:1px solid #b9cdb4}
.hc-rdeg{font-size:20px}
.hc-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.hc-key{display:flex;flex-direction:column;align-items:center;gap:4px;background:#fff;border:1px solid #cfd8e0;border-radius:12px;padding:9px 2px;cursor:pointer;font:600 11px/1 "Inter";color:var(--ink)}
.hc-key svg{width:24px;height:24px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.hc-key.hc-on{background:var(--blue);border-color:var(--blue);color:#fff}.hc-key.hc-on svg{stroke:#fff}
.hc-key[data-key="cool"] svg{stroke:var(--cool)}.hc-key[data-key="heat"] svg{stroke:var(--heat)}.hc-key.hc-on[data-key="cool"] svg,.hc-key.hc-on[data-key="heat"] svg{stroke:#fff}
.hc-cards .hc-card{display:none;background:#fff;border-radius:12px;padding:20px 22px;border:1px solid var(--line)}
.hc-cards .hc-card.hc-on{display:block}
.hc-ck{font:800 24px/1 "Plus Jakarta Sans";color:var(--blue);margin:0 0 10px}
.hc-bt{display:none;font-size:18px;margin:0 0 12px;color:var(--ink)}.hc-bt.hc-on{display:block}
.hc-tip{font-size:15.5px;color:var(--mute);margin:0;border-top:1px solid var(--line);padding-top:10px}
.hc-remote .hc-note{font-size:13.5px;color:var(--mute);margin:14px 0 0}
@media (max-width:760px){.hc-rgrid{grid-template-columns:1fr}.hc-handset{max-width:320px;margin:0 auto}.hc-remote{padding:18px}}
/* sizer */
.hc-sizer{margin:26px 0;background:var(--panel);border-radius:16px;padding:22px}
.hc-sgrid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;margin-top:12px}
.hc-sin label{display:block;font:700 15px "Plus Jakarta Sans";color:var(--ink);margin-bottom:14px}
.hc-sin label span{float:right;font-weight:600;color:var(--mute)}
.hc-sin input{width:100%;margin-top:8px;accent-color:var(--blue)}
.hc-sw{display:flex;gap:6px;flex-wrap:wrap}
.hc-loc{font:600 14px "Inter";border:1px solid var(--line);background:#fff;padding:9px 12px;border-radius:99px;cursor:pointer}
.hc-loc.hc-on{background:var(--heat);border-color:var(--heat);color:#fff}
.hc-sout{background:#fff;border-radius:12px;padding:20px;text-align:center}
.hc-sout .hc-big{font:800 46px/1 "Plus Jakarta Sans";color:var(--blue);margin:0}
.hc-sout .hc-sub{color:var(--mute);margin:10px 0 0;font-size:15.5px}
.hc-sizer .hc-note{font-size:13.5px;color:var(--mute)}
@media (max-width:760px){.hc-sgrid{grid-template-columns:1fr}}
.hc-faqh{margin-top:10px}
/* guide pages */
.hc-pg{padding-top:18px;padding-bottom:80px}
.hc-crumbs{font-size:14px;color:var(--mute)}.hc-crumbs a{color:var(--mute)}
.hc-cols{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;margin-top:14px;align-items:start}
@media (max-width:1000px){.hc-cols{grid-template-columns:minmax(0,1fr)}}
.hc-cols h1{font-size:clamp(32px,4.4vw,48px)}
.hc-by{display:flex;gap:12px;align-items:center;font-size:14px;color:var(--mute);margin:16px 0}
.hc-av{width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font:800 12px "Plus Jakarta Sans";flex:none}
.hc-qa{background:var(--blue);color:#fff;border-radius:12px;padding:18px 22px;margin:0 0 22px}
.hc-qa span{font:800 12.5px "Plus Jakarta Sans";letter-spacing:.08em;text-transform:uppercase;color:#9fd0ff}
.hc-qa p{margin:8px 0 0;font-size:19px}.hc-qa a{color:#fff}
.hc-pic{margin:0 0 22px}.hc-pic img{border-radius:12px;aspect-ratio:16/9;object-fit:cover;width:100%}
.hc-pic figcaption{font-size:13px;color:var(--mute);margin-top:6px}
.hc-body h2{font-size:clamp(24px,3vw,30px);margin:42px 0 12px;scroll-margin-top:90px}
.hc-body h3{font-size:21px;margin:26px 0 8px}
.hc-body p,.hc-body li{max-width:68ch}
.hc-body .hc-pic{margin:24px 0}
.hc-warn{border-left:6px solid var(--heat);background:#fdeee9;border-radius:0 8px 8px 0;padding:12px 16px;margin:20px 0}
.hc-warn b{display:block;font:800 13px "Plus Jakarta Sans";text-transform:uppercase;color:var(--heat)}
.hc-tw{overflow-x:auto;margin:18px 0}
table{border-collapse:collapse;width:100%;font-size:16px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--panel);color:var(--ink);font:700 14px "Plus Jakarta Sans"}
tbody th{color:var(--ink)}
td.hc-n{white-space:nowrap;font-weight:600;color:var(--ink)}
td.hc-c{color:var(--cool);font-weight:600}td.hc-h{color:var(--heat);font-weight:600}
.hc-note{font-size:14px;color:var(--mute);max-width:52em}
.hc-qa p{max-width:min(52em,900px)}
.hc-faq p{max-width:68ch}
.hc-rail{position:sticky;top:96px;display:grid;gap:14px}
@media (max-width:1000px){.hc-rail{position:static}}
.hc-ig{border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.hc-ig b{display:block;font:700 14px "Plus Jakarta Sans";margin-bottom:6px}
.hc-ig a{display:block;color:var(--ink);text-decoration:none;font-size:15px;padding:5px 0;border-top:1px solid var(--line)}
.hc-ig a:hover{color:var(--blue)}
.hc-rcard{background:var(--panel);border-radius:12px;padding:14px 16px}.hc-rcard b{font:700 15px "Plus Jakarta Sans"}.hc-rcard p{font-size:14.5px;margin:6px 0}
.hc-faq details{border-bottom:1px solid var(--line);padding:14px 0}
.hc-faq summary{cursor:pointer;font:700 18px/1.3 "Plus Jakarta Sans";color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px}
.hc-faq summary::-webkit-details-marker{display:none}
.hc-faq summary::after{content:"+";color:var(--blue);font-size:24px;line-height:1}.hc-faq details[open] summary::after{content:"\2212"}
.hc-faq details p{margin:8px 0 0}
.hc-sources{margin-top:46px;padding-top:14px;border-top:2px solid var(--ink)}
.hc-sources h2{font:800 14px "Plus Jakarta Sans";text-transform:uppercase;letter-spacing:.08em;margin:0 0 10px}
.hc-sources ol{padding-left:20px;font-size:15px}.hc-sources li{margin:4px 0}
.hc-foot{background:var(--dark);color:#c5d3df}
.hc-fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px;padding:44px 0 20px}
.hc-fl{font:800 22px "Plus Jakarta Sans";color:#fff;margin:0}.hc-fl b{color:#9fd0ff}
.hc-fgrid p{font-size:14.5px;max-width:46ch}.hc-fgrid p a{color:#9fd0ff}
.hc-foot nav h2{font:800 13px "Plus Jakarta Sans";text-transform:uppercase;letter-spacing:.08em;color:#9fd0ff;margin:6px 0 10px}
.hc-foot nav a{display:block;color:#fff;text-decoration:none;font-size:15px;padding:4px 0}
.hc-foot .hc-small{font-size:13px;color:#8fa2b3;border-top:1px solid #23364a;padding:14px 0 26px;margin:0;max-width:52em}
@media (max-width:860px){.hc-fgrid{grid-template-columns:1fr 1fr}.hc-fgrid > div:first-child{grid-column:1/-1}}
@media (max-width:520px){.hc-logo{flex:1 1 auto}.hc-logo small{max-width:22ch}}