:root{--ink:#111827;--text:#2b3140;--mute:#6b7280;--line:#e5e7eb;--soft:#f6f7f9;--accent:#2f4fe0}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--text);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
img{max-width:100%}
strong{color:var(--ink);font-weight:700}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:6px;z-index:10}
.skip:focus{left:8px}
:focus-visible{outline:3px solid rgba(47,79,224,.35);outline-offset:2px}
/* header */
.top{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.top__in{max-width:1180px;margin:0 auto;padding:0 16px;height:60px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;font-size:17px;letter-spacing:-.01em}
.langs{position:relative;font-size:14px}
.langs summary{list-style:none;cursor:pointer;font-weight:700;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:5px 10px}
.langs summary::-webkit-details-marker{display:none}
.langs__menu{position:absolute;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(17,24,39,.08);padding:6px;display:grid;min-width:150px}
.langs__menu a{padding:7px 10px;border-radius:6px;color:var(--text);text-decoration:none}
.langs__menu a:hover,.langs__menu a[aria-current]{background:var(--soft);color:var(--ink)}
/* layout */
.layout{max-width:1180px;margin:0 auto;padding:40px 16px 64px;display:grid;gap:48px}
@media(min-width:1100px){.layout{grid-template-columns:minmax(0,740px) 260px;justify-content:space-between;padding-top:56px}}
.article{min-width:0;max-width:740px}
h1,h2,h3{color:var(--ink);letter-spacing:-.02em;line-height:1.2}
h1{font-size:clamp(30px,4.4vw,42px);font-weight:800;margin:0 0 14px}
h2{font-size:clamp(24px,3vw,30px);font-weight:800;margin:56px 0 14px;scroll-margin-top:80px}
h3{font-size:22px;font-weight:700;margin:0;scroll-margin-top:80px}
h3.q{font-size:19px;margin:28px 0 6px}
p{margin:0 0 18px}
ul,ol{padding-left:22px;margin:0 0 20px}
li{margin:0 0 8px}
.byline{color:var(--mute);font-size:15px;margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.byline strong{color:var(--text);font-weight:600}
.glance li::marker{font-weight:700;color:var(--ink)}
.glance a{font-weight:700}
/* agency */
.agency{border-top:1px solid var(--line);padding-top:32px;margin-top:36px;scroll-margin-top:80px}
.agency__head{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.agency__logo{width:56px;height:56px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff;padding:4px;flex:none}
.agency__tag{font-size:17px;margin-bottom:12px}
.agency__tag strong{font-weight:600;color:var(--mute)}
.results{background:var(--soft);border-radius:10px;padding:14px 18px 6px 36px}
.visit a{font-weight:700;text-decoration:none}
.visit a:hover{text-decoration:underline}
.author{margin-top:48px;padding:18px 20px;background:var(--soft);border-radius:10px;font-size:15px;color:var(--mute)}
/* toc */
.toc{display:none}
@media(min-width:1100px){.toc{display:block;position:sticky;top:84px;align-self:start;max-height:calc(100vh - 100px);overflow:auto;font-size:14px;line-height:1.45}}
.toc__h{font-weight:700;color:var(--ink);margin:0 0 10px;font-size:13px;text-transform:uppercase;letter-spacing:.06em}
.toc ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}
.toc li{margin:0}
.toc a{display:block;padding:5px 0 5px 14px;color:var(--mute);text-decoration:none}
.toc a:hover{color:var(--accent)}
.toc .l3 a{padding-left:26px;font-size:13.5px}
/* footer */
.foot{border-top:1px solid var(--line);background:var(--soft);font-size:14px;color:var(--mute)}
.foot__in{max-width:1180px;margin:0 auto;padding:28px 16px}
.foot p{margin:0 0 8px}
.foot a{color:var(--text)}
.foot__copy{margin-top:12px!important}
/* 404 */
.nf{max-width:740px;margin:0 auto;padding:80px 16px;text-align:center}
/* rating */
.rate{margin-top:6px}
.rate__stars{display:flex;gap:4px;margin:4px 0 10px}
.star{font-size:34px;line-height:1;background:none;border:0;padding:2px;cursor:pointer;color:#d1d5db;transition:color .1s,transform .1s}
.star.on{color:#f5a524}
.star:hover{transform:scale(1.08)}
.rate__res{color:var(--mute);font-size:16px}
.byline__rate{color:var(--text);text-decoration:none}
/* nav */
.top__in{gap:16px}
.nav{display:flex;gap:4px;margin-left:auto;font-size:15px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--text);text-decoration:none;padding:6px 10px;border-radius:8px;white-space:nowrap;font-weight:600}
.nav a:hover{background:var(--soft);color:var(--ink)}
.nav a[aria-current]{color:var(--accent);background:#eef1fd}
@media(max-width:860px){.top__in{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:6px;row-gap:6px}.nav{order:3;width:100%;margin:0 -10px;font-size:14px}}
.crumbs{font-size:14px;color:var(--mute);margin-bottom:14px}
.crumbs a{color:var(--mute)}
.more{margin-top:-4px}
.more a{font-weight:700;text-decoration:none}
.more a:hover{text-decoration:underline}
/* comparison table */
.tablewrap{overflow-x:auto;margin:0 0 24px;border:1px solid var(--line);border-radius:10px}
.cmp{border-collapse:collapse;width:100%;min-width:860px;font-size:14.5px;line-height:1.45}
.cmp th,.cmp td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp thead th{background:var(--soft);color:var(--ink);font-weight:700;white-space:nowrap}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody th{font-weight:700;white-space:nowrap}
.cmp tbody th a{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none}
.cmp tbody th a:hover{color:var(--accent)}
.cmp img{width:28px;height:28px;object-fit:contain;border:1px solid var(--line);border-radius:6px;background:#fff;padding:2px;flex:none}
.cmp td:nth-child(n+3){white-space:nowrap}
.foot__note{color:var(--text)}
.cmp td:nth-child(2){min-width:250px}