/* Landlord Pilot — blue assistant layout modelled on shengjing.ca (sidebar + topbar + mobile bottom nav). */
:root{color-scheme:light;--bg:#f3f6fb;--card:#fff;--ink:#13233f;--muted:#4a5872;--line:#d6e0ee;--accent:#0b57d0;--accent-strong:#0842a0;--accent-soft:#e8f0fe;--navy:#0b2a5b;--ok:#1e7a46;--ok-soft:#e6f4ea;--bad:#b3261e;--bad-soft:#fce8e6;--warn:#8a5a00;--warn-soft:#fef3d6;--shadow:0 2px 12px #0b2a5b0d;--side:248px}
:root[data-theme=dark]{color-scheme:dark;--bg:#0e1420;--card:#172033;--ink:#e8eef8;--muted:#b4c0d4;--line:#2c3a52;--accent:#8ab4f8;--accent-strong:#aecbfa;--accent-soft:#1b2a45;--navy:#0a1730;--ok:#81c995;--ok-soft:#173326;--bad:#f2b8b5;--bad-soft:#3c1d1b;--warn:#fdd663;--warn-soft:#3a2f12;--shadow:none}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#0e1420;--card:#172033;--ink:#e8eef8;--muted:#b4c0d4;--line:#2c3a52;--accent:#8ab4f8;--accent-strong:#aecbfa;--accent-soft:#1b2a45;--navy:#0a1730;--ok:#81c995;--ok-soft:#173326;--bad:#f2b8b5;--bad-soft:#3c1d1b;--warn:#fdd663;--warn-soft:#3a2f12;--shadow:none}}
*{box-sizing:border-box}
html{scrollbar-gutter:stable}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 "Google Sans Text","Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--accent)}a:hover{color:var(--accent-strong)}
h1,h2,h3,h4{color:var(--ink);line-height:1.35;font-weight:650}
p{color:var(--muted)}
img{max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.skip-link{position:absolute;left:12px;top:-80px;z-index:100;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px}.skip-link:focus{top:10px}
[hidden],.hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Shell ---------- */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);padding:22px 16px 18px;background:var(--card);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:2px;overflow-y:auto;z-index:20;scrollbar-width:thin}
.brand{display:flex;align-items:center;gap:12px;padding:0 8px 16px;text-decoration:none;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#1a73e8,#0b3d91);color:#fff;font-size:22px;flex-shrink:0;box-shadow:0 4px 12px #0b57d040}
.brand b{display:block;font-size:19px;letter-spacing:.02em}.brand small{display:block;font-size:10px;letter-spacing:1.6px;color:var(--muted);margin-top:-2px}
.nav-label{margin:14px 10px 4px;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.06em}
.side-link{display:flex;align-items:center;gap:12px;min-height:40px;padding:6px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
.side-link .ico{width:22px;text-align:center;color:var(--accent);font-size:16px;flex-shrink:0}
.side-link:hover{background:var(--accent-soft);color:var(--ink)}
.side-link.selected{background:var(--accent-soft);color:var(--accent);font-weight:650}
.sidebar-note{margin:18px 4px 10px;padding:16px;border-radius:14px;background:linear-gradient(160deg,#1a73e8,#0b3d91);color:#fff}
.sidebar-note>span{font-size:18px}.sidebar-note p{color:#e3ecfd;font-size:13px;margin:6px 0 10px;line-height:1.7}
.sidebar-note a{color:#fff;font-weight:600;font-size:13px;text-decoration:none}
.sidebar-bottom{margin-top:auto;padding:12px 10px 0;font-size:12px;color:var(--muted)}.sidebar-bottom a{color:var(--muted);text-decoration:none}.sidebar-bottom a:hover{color:var(--accent)}
.wrap{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;height:62px;padding:0 36px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.crumb{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;font-size:16px}
.top-link{color:var(--ink);text-decoration:none;font-weight:500;padding:6px 8px}
.pill-btn{display:inline-flex;align-items:center;min-height:38px;padding:0 16px;border-radius:999px;background:var(--accent);color:#fff!important;text-decoration:none;font-weight:600}
:root[data-theme=dark] .pill-btn{color:#0e1420!important}
.user-menu{position:relative}.user-menu summary{list-style:none;display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 10px 4px 4px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink)}
.user-menu summary::-webkit-details-marker{display:none}
.avatar{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:13px}
.uname{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-menu .menu{position:absolute;right:0;top:46px;min-width:180px;padding:8px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 40px #0b2a5b26;display:grid}
.user-menu .menu a,.user-menu .menu button{display:block;width:100%;text-align:left;padding:9px 12px;border-radius:8px;color:var(--ink);text-decoration:none;background:none;border:0;cursor:pointer;font-size:14px}
.user-menu .menu a:hover,.user-menu .menu button:hover{background:var(--accent-soft)}
main{flex:1;width:100%;max-width:1200px;padding:30px 36px 48px;outline:none}
.site-footer{padding:26px 36px 40px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;max-width:1200px}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 18px;margin:8px 0}.foot-links a{color:var(--muted)}
.mobile-nav{display:none}
#more-dialog{width:calc(100% - 24px);max-width:560px;max-height:85dvh;border:1px solid var(--line);border-radius:20px;padding:18px;background:var(--card);color:var(--ink)}
#more-dialog::backdrop{background:#0b1a3366}
.more-head{display:flex;justify-content:space-between;align-items:center}.more-head button{border:0;background:none;font-size:20px;cursor:pointer;color:var(--ink);min-width:44px;min-height:44px}
.more-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.more-grid a{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;color:var(--ink);text-decoration:none;font-size:14px}
.more-grid a span{color:var(--accent)}

/* ---------- Common blocks (also styles the pages carried over from 58.ca) ---------- */
section{margin-bottom:34px;scroll-margin-top:80px;min-width:0}
article{min-width:0}
main{overflow-wrap:anywhere}
.card{padding:24px;background:var(--card);border:1px solid var(--line);border-radius:18px;margin-bottom:20px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:19px}.card>h2:first-child{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid .card{margin-bottom:0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.download{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.note{padding:16px 18px;background:var(--accent-soft);border-radius:14px;color:var(--ink);font-size:14px;border:1px solid color-mix(in srgb,var(--accent) 18%,transparent)}
.pill{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:30px;padding:4px 12px;font-size:13px;font-weight:600}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent);text-transform:uppercase}
.lead{max-width:780px;font-size:17px}
.fine{font-size:13px}
.button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 20px;border-radius:999px;background:var(--accent);color:#fff;border:1px solid var(--accent);text-decoration:none;font-weight:600;cursor:pointer;font-size:15px;white-space:nowrap}
.button:hover,.btn:hover{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}
:root[data-theme=dark] .button,:root[data-theme=dark] .btn{color:#0e1420}
.button.secondary,.btn.secondary,.btn.ghost{background:var(--card);color:var(--accent);border-color:var(--line)}
.button.secondary:hover,.btn.secondary:hover,.btn.ghost:hover{background:var(--accent-soft);color:var(--accent-strong)}
.btn.small{min-height:34px;padding:0 14px;font-size:13px}
.btn.danger{background:var(--card);color:var(--bad);border-color:var(--line)}.btn.danger:hover{background:var(--bad-soft);color:var(--bad)}
.btn.link{background:none;border:0;color:var(--accent);padding:0 6px;min-height:32px}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.disabled{color:var(--muted);background:var(--accent-soft);padding:10px 14px;border-radius:12px;display:inline-block}
.sectionhead{display:flex;justify-content:space-between;gap:16px;align-items:baseline}
.sectionhead h2{margin:0 0 14px}
.list{display:grid;gap:10px}
.row{padding:16px 18px;background:var(--card);border:1px solid var(--line);border-radius:14px}
.row a{font-weight:600}.row p{margin:6px 0}
.news-date{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.status{font-size:14px;color:var(--muted)}
.filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px;align-items:flex-end}
label{display:grid;gap:6px;font-weight:600;font-size:14px}
input,select,textarea{padding:10px 12px;border:1px solid var(--line);border-radius:10px;max-width:100%;background:var(--card);color:var(--ink);font-size:16px;min-height:44px}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:2px solid color-mix(in srgb,var(--accent) 30%,transparent);outline-offset:0}
textarea{width:100%;min-height:150px}
input[type=checkbox],input[type=radio]{min-height:0;width:18px;height:18px;accent-color:var(--accent)}
.featurelink{display:block;text-decoration:none;color:inherit}.featurelink:hover{border-color:var(--accent);background:var(--accent-soft)}
.number{font-size:32px;color:var(--accent);font-weight:800}
.checklist label{display:flex;align-items:flex-start;gap:10px;margin:10px 0;font-weight:400}
.label{color:var(--warn);font-size:13px}
.output{white-space:pre-wrap}
.wide{grid-column:1/-1}
.footerlinks{display:flex;flex-wrap:wrap;gap:14px;margin:12px 0}
summary{cursor:pointer;font-weight:600}
details p{margin-bottom:0}
.langs a{font-weight:500}
table{border-collapse:collapse;width:100%}
.lesson ol{padding-left:24px}.lesson li{margin:12px 0}.lesson li label{display:flex;align-items:flex-start;gap:10px;font-weight:400;font-size:16px}.lesson-step{width:20px;height:20px;flex-shrink:0;margin:4px 0 0}
.lesson li:has(input:checked) span{color:var(--muted);text-decoration:line-through}
.print-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:22px}

/* Page heroes from the original pages */
.hero,.photo-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;padding:6px 0 30px}
.hero h1,.photo-hero h1{font-size:clamp(28px,3.4vw,42px);margin:10px 0 14px}
.hero-small{padding:6px 0 26px}.hero-small h1{font-size:clamp(26px,3vw,38px);margin:10px 0 12px}
.hero-photo{margin:0;min-width:0}
.hero-photo img{display:block;width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:22px;box-shadow:0 14px 40px #0b2a5b1f}
.hero-photo figcaption{font-size:12px;color:var(--muted);margin-top:8px;text-align:right}
.hero-copy{min-width:0}

/* ---------- Home (dashboard) ---------- */
.welcome{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:20px}
.welcome .date{font-size:13px;color:var(--muted);margin:0}
.welcome h1{font-size:clamp(26px,3vw,34px);margin:4px 0 4px}
.welcome p:last-child{margin:0}
.home-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(250px,1fr);gap:18px}
.hero-card{position:relative;min-height:330px;border-radius:22px;overflow:hidden;color:#fff;display:flex;flex-direction:column;justify-content:space-between;padding:34px;background:linear-gradient(100deg,rgba(6,28,74,.92) 0%,rgba(9,52,130,.72) 55%,rgba(9,52,130,.25) 100%),url('/images/home-1280.webp') center/cover}
.hero-card .tag{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:5px 14px;border-radius:999px;background:#ffffff1f;border:1px solid #ffffff3d;font-size:13px}
.hero-card h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin:18px 0 10px;max-width:560px;text-shadow:0 1px 3px #0005}
.hero-card p{color:#dbe6fb;max-width:520px;margin:0 0 20px;font-size:15px}
.hero-card .actions .button{background:#fff;color:#0b3d91;border-color:#fff}.hero-card .actions .button:hover{background:#e8f0fe;color:#0b3d91}
.hero-card .actions .button.secondary{background:#ffffff14;color:#fff;border-color:#ffffff66}
.hero-foot{font-size:11px;letter-spacing:.2em;color:#c7d6f5;text-transform:uppercase;margin-top:18px}
.side-card{border-radius:22px;padding:26px;background:var(--navy);color:#fff;display:flex;flex-direction:column}
.side-card .eyebrow{color:#9ec2ff}
.side-card h3{color:#fff;font-size:20px;margin:8px 0 12px}
.side-card p,.side-card li{color:#c9d7f2;font-size:14px}
.side-card ul{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:8px}
.side-card li a{display:block;padding:10px 12px;border-radius:12px;background:#ffffff12;color:#fff;text-decoration:none;font-size:14px;line-height:1.5}
.side-card li a:hover{background:#ffffff22}
.side-card li.urgent a{border-left:3px solid #f28b82}
.side-card .more{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border:1px solid #ffffff3d;border-radius:12px;color:#fff;text-decoration:none;font-weight:600;font-size:14px}
.side-card .stats-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}
.side-card .stats-mini div{background:#ffffff12;border-radius:12px;padding:10px 12px}
.side-card .stats-mini b{display:block;font-size:20px;color:#fff}.side-card .stats-mini small{color:#9fb4dc;font-size:12px}
.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:30px 0 14px}
.section-heading h2{font-size:22px;margin:0}
.section-heading a{font-size:14px;text-decoration:none;font-weight:500}
.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.tool{display:flex;flex-direction:column;gap:8px;padding:20px;border-radius:16px;background:var(--card);border:1px solid var(--line);text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:border-color .15s,transform .15s}
.tool:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--ink)}
.tool .ico{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-size:20px}
.tool b{font-size:16px}.tool small{color:var(--muted);font-size:13px;line-height:1.6}
.journey-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.journey-card{border-radius:18px;padding:22px;background:var(--card);border:1px solid var(--line)}
.journey-card .num{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent)}
.journey-card h3{margin:6px 0 8px;font-size:18px}.journey-card p{font-size:14px;margin:0 0 12px}
.journey-card .links{font-size:14px}
.banner{display:flex;gap:22px;align-items:center;padding:22px;border-radius:18px;background:var(--accent-soft);border:1px solid var(--line);margin-top:18px}
.banner img{width:180px;border-radius:14px;aspect-ratio:3/2;object-fit:cover;flex-shrink:0}
.banner h3{margin:0 0 6px}.banner p{margin:0 0 10px;font-size:14px}

/* ---------- Workspace ---------- */
.ws-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.ws-head h1{margin:0;font-size:28px}.ws-head p{margin:4px 0 0}
.prop-switch{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.prop-switch select{min-width:220px}
.tabs{display:flex;gap:6px;overflow-x:auto;padding:4px;margin:0 0 20px;background:var(--card);border:1px solid var(--line);border-radius:14px;scrollbar-width:thin}
.tabs a{flex:none;padding:8px 16px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap}
.tabs a:hover{background:var(--accent-soft)}
.tabs a.on{background:var(--accent);color:#fff}:root[data-theme=dark] .tabs a.on{color:#0e1420}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:18px}
.stat{padding:16px 18px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.stat small{display:block;color:var(--muted);font-size:13px}.stat b{display:block;font-size:22px;margin-top:2px;font-variant-numeric:tabular-nums}
.stat.good b{color:var(--ok)}.stat.bad b{color:var(--bad)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--card)}
table.data{font-size:14px}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;white-space:nowrap}
table.data td.wrap-cell{white-space:normal;min-width:180px}
table.data th{font-size:12px;color:var(--muted);font-weight:600;background:color-mix(in srgb,var(--accent-soft) 50%,var(--card));letter-spacing:.03em}
table.data tr:last-child td{border-bottom:0}
table.data td.num,table.data th.num{text-align:right;font-variant-numeric:tabular-nums}
table.data tfoot td{font-weight:700;background:var(--accent-soft)}
.row-actions{display:flex;gap:4px;justify-content:flex-end}
.row-actions form{display:inline}
.badge{display:inline-block;padding:1px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--accent-soft);color:var(--accent)}
.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.bad{background:var(--bad-soft);color:var(--bad)}.badge.warn{background:var(--warn-soft);color:var(--warn)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;align-items:end}
.form-grid .span2{grid-column:span 2}.form-grid .full{grid-column:1/-1}
.form-grid label input,.form-grid label select,.form-grid label textarea{width:100%}
.check{display:flex;align-items:center;gap:8px;font-weight:500}
.alert{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-size:14px;border:1px solid transparent}
.alert.ok{background:var(--ok-soft);color:var(--ok)}.alert.bad{background:var(--bad-soft);color:var(--bad)}.alert.info{background:var(--accent-soft);color:var(--ink)}
.empty{padding:36px 20px;text-align:center;border:1px dashed var(--line);border-radius:16px;color:var(--muted);background:var(--card)}
.empty h3{margin:0 0 6px}
.attention{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.attention li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;background:var(--card);border:1px solid var(--line)}
.attention li.urgent{border-left:4px solid var(--bad)}
.prop-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.prop-card{padding:20px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.prop-card h3{margin:0 0 4px;font-size:18px}.prop-card p{margin:0 0 10px;font-size:14px}
.prop-card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:14px;margin:0 0 12px}.prop-card dt{color:var(--muted)}.prop-card dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}
.bars{display:grid;gap:6px}
.bars .bar{display:grid;grid-template-columns:60px 1fr 110px;gap:10px;align-items:center;font-size:13px}
.bars .track{height:10px;border-radius:6px;background:var(--accent-soft);overflow:hidden}
.bars .fill{height:100%;background:var(--accent);border-radius:6px}
.bars .fill.neg{background:var(--bad)}
.auth-card{max-width:440px;margin:20px auto;padding:30px}
.auth-card h1{margin-top:0;font-size:26px}
.auth-card form{display:grid;gap:14px}
.auth-card input{width:100%}
.check input[type=checkbox],.auth-card .check input,.form-grid .check input{width:18px;flex:0 0 18px;margin:0}
.check{justify-content:flex-start;text-align:left}
.validation{color:var(--bad);font-size:13px}

/* ---------- Responsive ---------- */
@media(max-width:1150px){:root{--side:212px}main{padding:26px 28px 44px}.topbar{padding:0 28px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.home-grid{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.journey-grid{grid-template-columns:1fr}}
@media(max-width:800px){:root{--side:76px}.sidebar{padding:18px 10px;align-items:center}.brand{padding:0 0 12px}.brand>span:last-child,.nav-label,.sidebar-note,.sidebar-bottom,.side-link .txt{display:none}.side-link{justify-content:center;width:52px;padding:0}.side-link .ico{font-size:18px}
  .hero,.photo-hero{grid-template-columns:1fr;gap:18px}.hero-photo{order:-1}.steps,.download{grid-template-columns:1fr}}
@media(max-width:560px){
  .sidebar{display:none}.wrap{margin-left:0}
  .mobile-nav{position:fixed;inset:auto 0 0;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);height:calc(64px + env(safe-area-inset-bottom));padding:4px 6px env(safe-area-inset-bottom);background:var(--card);border-top:1px solid var(--line)}
  .mobile-nav a,.mobile-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;border:0;background:none;color:var(--muted);text-decoration:none;font-size:11px;cursor:pointer;min-height:44px}
  .mobile-nav span{font-size:19px;line-height:1.3;color:inherit}
  .mobile-nav .selected{color:var(--accent);font-weight:600}
  .topbar{padding:0 16px;height:56px}.crumb{font-size:12px}.uname,.top-link{display:none}
  main{padding:18px 16px 96px}.site-footer{padding:20px 16px 100px}
  .grid,.tool-grid,.stats{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-card{padding:24px;min-height:300px}.welcome{flex-direction:column;align-items:flex-start}
  .banner{flex-direction:column;align-items:flex-start}.banner img{width:100%}
  .sectionhead{flex-direction:column;gap:0}.filters>*{width:100%}
  .form-grid .span2{grid-column:auto}
  .prop-switch select{min-width:0;flex:1}
  .tool{padding:16px}.tool small{display:none}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{
  @page{margin:14mm}
  :root,:root[data-theme=dark]{--bg:#fff;--card:#fff;--ink:#111;--muted:#444;--line:#bbb;--accent:#111;--accent-soft:#f3f3f3}
  .sidebar,.mobile-nav,.topbar,.site-footer,.skip-link,.hero-photo,.print-actions,.filters,.no-print,button,.btn,.button,.tabs,.prop-switch{display:none!important}
  .wrap{margin:0}main{padding:0;max-width:none}.card,.row,.note{box-shadow:none;break-inside:avoid}
  .hero,.photo-hero{display:block}
}

/* Language menu and Chinese-version hint */
.lang-menu{position:relative}
.lang-menu summary{list-style:none;display:flex;align-items:center;gap:6px;cursor:pointer;min-height:38px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink);font-size:13px}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu .menu{position:absolute;right:0;top:46px;min-width:150px;padding:6px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 40px #0b2a5b26;display:grid;z-index:20}
.lang-menu .menu a{padding:8px 12px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14px}
.lang-menu .menu a:hover{background:var(--accent-soft)}.lang-menu .menu a.on{font-weight:700;color:var(--accent)}
.lang-hint{display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap;padding:8px 16px;background:var(--accent-soft);border-bottom:1px solid var(--line);font-size:14px}
.lang-hint[hidden]{display:none}
.lang-hint button{border:0;background:none;color:var(--muted);cursor:pointer;font-size:14px;min-width:32px;min-height:32px}
.sidebar-bottom b{color:var(--ink)}
@media(max-width:560px){.lang-cur{display:none}.lang-menu summary{padding:0 10px}}

.brand small{white-space:nowrap;letter-spacing:.8px;font-size:9.5px}