/* Gotech — Design 4 "Elite" | technical instrument · bento · tool-first · AA contrast */
:root{
  --paper:#e8ebee; --paper-2:#dfe3e7; --tile:#ffffff; --tile-2:#f5f7f9;
  --ink:#0b0e11; --ink-2:#2b3238; --body:#4c565f; --dim:#5f6b76;
  --line:#cfd6dd; --line-2:#e4e9ee;
  --red:#c0272d; --red-d:#9c1f24; --red-l:#fdecec;
  --mint:#00a88e; --mint-l:#e2f7f3;
  --amber:#c98a12;
  --wrap:1300px;
  --r:4px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;z-index:120;font-weight:600}
.skip:focus{left:0}
html[lang^="zh"] body{font-family:"Archivo","Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif}
html[lang^="zh"] h1,html[lang^="zh"] h2,html[lang^="zh"] h3,html[lang^="zh"] h4{font-family:"Archivo","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;letter-spacing:0}
body{margin:0;background:var(--paper);color:var(--body);
  font-family:"Archivo","Inter",system-ui,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Archivo",sans-serif;color:var(--ink);font-weight:700;line-height:1.08;letter-spacing:-.03em;margin:0 0 .4em}
p{margin:0 0 1rem}
a{color:var(--ink);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
.lbl{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);font-weight:500}
.rule{height:1px;background:var(--line)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;
  font-family:"Archivo",sans-serif;font-weight:600;font-size:.95rem;border:1.5px solid var(--ink);
  background:transparent;color:var(--ink);cursor:pointer;transition:.14s;border-radius:var(--r)}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn-red{background:var(--red);border-color:var(--red);color:#fff}
.btn-red:hover{background:var(--red-d);border-color:var(--red-d);color:#fff}
.btn-sm{padding:9px 15px;font-size:.85rem}

/* ---- top bar ---- */
.topbar{background:var(--ink);color:#93a1ad}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:8px 24px;
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.08em}
.topbar a{padding:4px 0;display:inline-block}
.topbar a{color:#93a1ad}.topbar a:hover{color:#fff}
.topbar .grn{color:var(--mint)}
.tb-r{display:flex;gap:18px;align-items:center}

/* ---- header ---- */
header{position:sticky;top:0;z-index:60;background:rgba(232,235,238,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:var(--wrap);margin:0 auto;padding:12px 24px}
.logo-img{height:42px}
nav.links{display:flex;gap:2px;align-items:center}
nav.links a{padding:9px 12px;font-weight:600;font-size:.91rem;color:var(--ink-2);border-radius:var(--r)}
nav.links a:hover{background:var(--tile);color:var(--ink)}
nav.links a[aria-current="page"]{background:var(--tile);color:var(--ink);box-shadow:inset 0 -2px 0 var(--red)}
.nav-r{display:flex;align-items:center;gap:12px}
.nav-tel{font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:.86rem;color:var(--ink);white-space:nowrap}
.menu-btn{display:none;background:none;border:0;font-size:1.5rem;color:var(--ink);cursor:pointer}

/* ---- hero = the tool ---- */
.hero{position:relative;overflow:hidden;padding:44px 0 30px;isolation:isolate}
.hero-water{position:absolute;inset:-4% -2%;z-index:0;
  background:url("assets/water-1600.jpg") center/cover no-repeat;
  animation:drift 30s ease-in-out infinite alternate}
@keyframes drift{from{transform:scale(1.04) translate3d(0,0,0)}to{transform:scale(1.11) translate3d(-1.6%,-1.2%,0)}}
.hero:after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:
  linear-gradient(180deg,rgba(232,235,238,.58) 0%,rgba(232,235,238,.80) 34%,rgba(232,235,238,.95) 62%,var(--paper) 88%)}
.hero .wrap{position:relative;z-index:2}
.hero-top{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:end;margin-bottom:26px}
.hero h1{font-size:3.3rem;max-width:16ch;text-shadow:0 1px 22px rgba(232,235,238,.9)}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .sub{font-size:1.08rem;max-width:48ch;margin:14px 0 0;color:var(--ink-2)}
.est{display:flex;flex-direction:column;align-items:flex-end;gap:6px;text-align:right;white-space:nowrap}
.est .yr{font-family:"Archivo",sans-serif;font-size:2.45rem;font-weight:700;color:var(--ink);line-height:.95;letter-spacing:-.04em}
.est .yr span{color:var(--red)}

/* ---- bento ---- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:10px}
.tile{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:22px;position:relative;overflow:hidden}
.tile-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.t-diag{grid-column:span 7;padding:26px}
.t-live{grid-column:span 5}
.t-meter{grid-column:span 7}
.t-auth{grid-column:span 5;background:var(--ink);border-color:var(--ink);color:#9fb0bd}
.t-resp{grid-column:span 3}
.t-chem{grid-column:span 5}
.t-cov{grid-column:span 4}
.t-proof{grid-column:span 4}

/* diagnostic */
.dg-q{font-family:"Archivo",sans-serif;font-size:1.32rem;font-weight:700;color:var(--ink);margin:0 0 16px;letter-spacing:-.02em}
.dots{display:flex;gap:5px}
.dot{width:22px;height:3px;background:var(--line);border-radius:2px;transition:.25s}
.dot.on{background:var(--red)}
.opts{display:flex;flex-wrap:wrap;gap:7px}
.opt{display:inline-block;padding:10px 15px;border:1.5px solid var(--line);background:var(--tile-2);border-radius:var(--r);
  font-size:.9rem;font-weight:600;color:var(--ink-2);cursor:pointer;transition:.13s;font-family:"Archivo",sans-serif;text-align:left}
html[lang^="zh"] .opt{font-family:"Archivo","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
.opt:hover{border-color:var(--ink);background:#fff;transform:translateY(-1px)}
.dg-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line-2);display:flex;justify-content:space-between;align-items:center;gap:12px}
.back{background:none;border:0;color:var(--dim);font-size:.8rem;cursor:pointer;font-family:"IBM Plex Mono",monospace;padding:0}
.back:hover{color:var(--red)}
/* result */
.res{display:none}
.res.on{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.res-tag{display:inline-flex;align-items:center;gap:6px;background:var(--mint-l);color:#00705f;
  font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.12em;padding:4px 9px;border-radius:99px;margin-bottom:12px;font-weight:600}
.res h3{font-size:1.5rem;margin-bottom:8px}
.res p{font-size:.95rem;margin-bottom:14px}
.res-box{background:var(--tile-2);border:1px solid var(--line-2);border-left:3px solid var(--red);padding:13px 15px;margin-bottom:16px}
.res-box p{margin:0;font-size:.88rem;color:var(--ink-2)}
.res-cta{display:flex;gap:8px;flex-wrap:wrap}

/* live tile */
.reads{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:12px}
.read{background:var(--tile-2);border:1px solid var(--line-2);border-radius:var(--r);padding:9px 10px}
.read .k{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}
.read .v{font-family:"IBM Plex Mono",monospace;font-size:1.22rem;font-weight:700;color:var(--ink);margin-top:2px}
.read .u{font-size:.58rem;color:var(--dim);font-weight:400}
.pulse{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 0 rgba(0,168,142,.7);animation:pl 2.2s infinite;flex:none}
@keyframes pl{70%{box-shadow:0 0 0 8px rgba(0,168,142,0)}100%{box-shadow:0 0 0 0 rgba(0,168,142,0)}}
#spark{width:100%;height:44px;display:block}
.live-note{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--dim);margin-top:9px;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}

/* meter tile */
.scale{position:relative;height:9px;border-radius:99px;margin:26px 0 8px;
  background:linear-gradient(90deg,var(--mint) 0%,var(--mint) 22%,var(--amber) 56%,var(--red) 100%)}
.mk{position:absolute;top:-7px;width:2.5px;height:23px;background:var(--ink);border-radius:2px;transition:left 1.4s cubic-bezier(.16,1,.3,1)}
.mk:after{content:"YOU";position:absolute;top:-15px;left:50%;transform:translateX(-50%);
  font-family:"IBM Plex Mono",monospace;font-size:.55rem;letter-spacing:.1em;color:var(--ink)}
.scale-l{display:flex;justify-content:space-between;font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--dim)}
.zones{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line-2)}
.z .n{font-family:"IBM Plex Mono",monospace;font-size:1.15rem;font-weight:700}
.z.g .n{color:var(--mint)} .z.b .n{color:var(--red)} .z.a .n{color:#9a6b00}
.z .d{font-size:.76rem;color:var(--body);margin-top:3px;line-height:1.45}

/* authority tile (dark) */
.t-auth h3{color:#fff;font-size:1.28rem;margin-bottom:10px}
.t-auth p{font-size:.87rem;color:#9fb0bd;margin-bottom:14px}
.auth-l{list-style:none;padding:0;margin:0}
.auth-l li{display:flex;gap:9px;padding:7px 0;border-top:1px solid rgba(255,255,255,.1);font-size:.83rem;color:#c3d0da}
.auth-l li b{color:#fff;font-family:"IBM Plex Mono",monospace}

/* stat tiles */
.big{font-family:"Archivo",sans-serif;font-size:2.9rem;font-weight:700;color:var(--ink);line-height:.95;letter-spacing:-.04em}
.big.red{color:var(--red)}
.tile .cap{font-size:.8rem;color:var(--body);margin-top:6px;line-height:1.4}

/* chem tile */
.chem-l{list-style:none;padding:0;margin:10px 0 0}
.chem-l li{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-top:1px solid var(--line-2);font-size:.85rem;color:var(--ink-2);font-weight:500}
.chem-l li span{font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--dim)}

/* coverage */
.cov{display:flex;flex-wrap:wrap;gap:5px;margin-top:10px}
.chip{font-family:"IBM Plex Mono",monospace;font-size:.7rem;padding:4px 9px;background:var(--tile-2);border:1px solid var(--line-2);border-radius:99px;color:var(--ink-2)}

/* risk reversal band */
.rr{background:var(--ink);color:#fff;margin-top:10px;border-radius:var(--r)}
.rr .in{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.12)}
.rr .c{background:var(--ink);padding:24px 22px}
.rr .c b{display:block;font-family:"Archivo",sans-serif;font-size:1.08rem;color:#fff;margin-bottom:5px}
.rr .c span{font-size:.84rem;color:#9fb0bd}

/* section */
.sec{padding:70px 0 0}
.sec-hd{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:14px}
.sec-hd h2{font-size:2rem;margin:0}
.svcs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.svc{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:20px;transition:.15s;display:block}
.svc:hover{border-color:var(--ink);transform:translateY(-2px)}
.svc .n{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:var(--dim);letter-spacing:.1em}
.svc h3{font-size:1.06rem;margin:8px 0 5px}
.svc p{font-size:.84rem;margin:0;color:var(--body);line-height:1.5}

/* footer */
footer{background:var(--ink);color:#8d9aa6;margin-top:70px;font-size:.88rem}
footer .wrap{padding:52px 24px 26px;display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
footer h4{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin:0 0 14px;font-weight:500}
footer a{color:#8d9aa6}footer a:hover{color:#fff}
footer ul{list-style:none;padding:0;margin:0}footer li{margin-bottom:8px}
.flogo{height:38px;margin-bottom:12px}
.frow{display:flex;gap:8px;margin-bottom:9px;line-height:1.5}
.frow svg{flex:none;margin-top:3px;color:#5d6b77;width:14px;height:14px}
.legal{border-top:1px solid rgba(255,255,255,.1);padding:16px 24px;text-align:center;
  font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:#8d9aa6;letter-spacing:.06em}

/* fab */
.wa{position:fixed;right:18px;bottom:18px;z-index:70;width:52px;height:52px;border-radius:50%;background:#25D366;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.4);transition:.14s}
.wa:hover{transform:scale(1.07)}.wa svg{width:28px;height:28px;fill:#fff}
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);padding-bottom:env(safe-area-inset-bottom)}
.mbar a{display:flex;align-items:center;justify-content:center;gap:6px;padding:13px 4px;background:var(--tile);color:var(--ink);font-size:.85rem;font-weight:600}
.mbar a.q{background:var(--red);color:#fff}
.mbar svg{width:15px;height:15px}

@media(max-width:1080px){
  .t-diag,.t-live,.t-meter,.t-know{grid-column:span 12}
  .t-auth,.t-chem{grid-column:span 6}
  .t-proof,.t-cov,.t-hosp{grid-column:span 4}
  .hero h1{font-size:2.5rem}
  .svcs{grid-template-columns:1fr 1fr}
  footer .wrap{grid-template-columns:1fr 1fr}
  nav.links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:0;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(11,14,17,.12)}
  header.mopen nav.links{display:flex}
  nav.links a{padding:14px 24px;border-top:1px solid var(--line)}
  nav.links a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--red)}
  .menu-btn{display:block}
}
@media(max-width:680px){
  .nav-tel{display:none}
  .topbar .wrap{justify-content:center}.tb-l{display:none}
  .hero-top{grid-template-columns:1fr;align-items:start}
  .est{align-items:flex-start;text-align:left}
  .hero h1{font-size:2rem}
  .tile,.t-auth,.t-chem,.t-cov,.t-resp,.t-proof,.t-hosp,.t-know{grid-column:span 12}
  .rr .in,.svcs,footer .wrap{grid-template-columns:1fr}
  .zones{grid-template-columns:1fr}
  .wa{display:none}.mbar{display:grid}body{padding-bottom:48px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

@media(prefers-reduced-motion:reduce){.hero-water{animation:none}}

/* ================= inner pages ================= */
.phead{position:relative;overflow:hidden;isolation:isolate;padding:0 0 6px}
.phead-water{position:absolute;inset:-6% -2% auto -2%;height:150%;z-index:0;
  background:url("assets/water-1600.jpg") center/cover no-repeat;
  animation:drift 30s ease-in-out infinite alternate}
.phead:after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(232,235,238,.62) 0%,rgba(232,235,238,.86) 46%,var(--paper) 92%)}
.phead .wrap{position:relative;z-index:2;padding-top:30px;padding-bottom:22px}
.crumb{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;color:var(--dim);margin-bottom:14px}
.crumb a{color:var(--dim)}.crumb a:hover{color:var(--red)}
.phead h1{font-size:2.7rem;max-width:18ch;margin:10px 0 .3em;text-shadow:0 1px 20px rgba(232,235,238,.85)}
.phead h1 em{font-style:normal;color:var(--red)}
.phead .sub{font-size:1.06rem;max-width:56ch;color:var(--ink-2);margin:0}

.two{display:grid;grid-template-columns:1.55fr .95fr;gap:14px;align-items:start;padding-top:6px}
.two>*{min-width:0}
.prose p,.prose li,.prose dd,.side li{overflow-wrap:anywhere}
.prose table,.side table{overflow-wrap:normal}
.tblw{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
.prose{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:30px 32px}
.prose h2{font-size:1.5rem;margin:1.5em 0 .5em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.1rem;margin:1.3em 0 .4em}
.prose p{font-size:1rem;line-height:1.72;color:var(--body);margin:0 0 1rem}
.prose strong{color:var(--ink);font-weight:600}
.prose ul{list-style:none;padding:0;margin:0 0 1.1rem}
.prose ul li{position:relative;padding:9px 0 9px 24px;border-top:1px solid var(--line-2);font-size:.97rem;color:var(--body);line-height:1.6}
.prose ul li:before{content:"";position:absolute;left:2px;top:17px;width:6px;height:6px;background:var(--mint);border-radius:1px}
.callout{background:var(--tile-2);border:1px solid var(--line-2);border-left:3px solid var(--red);padding:16px 18px;margin:1.3rem 0}
.callout p{margin:0;font-size:.94rem;color:var(--ink-2)}
.side{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.side h3{font-size:1.05rem;margin-bottom:12px}
.side ul{list-style:none;padding:0;margin:0}
.side li{display:flex;gap:9px;padding:8px 0;border-top:1px solid var(--line-2);font-size:.86rem;color:var(--body);line-height:1.5}
.side li svg{flex:none;margin-top:3px;color:var(--mint)}
.side .btn{width:100%;margin-top:14px}
.related{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-2)}
.related a{font-family:"IBM Plex Mono",monospace;font-size:.68rem;padding:5px 10px;background:var(--tile-2);
  border:1px solid var(--line-2);border-radius:99px;color:var(--ink-2)}
.related a:hover{border-color:var(--red);color:var(--red)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.faq-i{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;margin-bottom:8px}
.faq-i h3{font-size:1.02rem;margin-bottom:.35em}
.faq-i p{margin:0;font-size:.94rem;color:var(--body);line-height:1.65}
.fld{margin-bottom:12px}
.fld label{display:block;font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim);margin-bottom:5px}
.fld input,.fld select,.fld textarea{width:100%;padding:11px 12px;border:1px solid var(--line);
  border-radius:var(--r);font:inherit;font-size:.95rem;color:var(--ink);background:var(--tile-2)}
.fld textarea{min-height:104px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--ink);background:#fff}
.prod{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.prod h3{font-size:1.1rem;margin-bottom:4px}
.prod .m{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:var(--dim);margin-bottom:10px}
.prod p{font-size:.9rem;margin-bottom:14px}
.cta-band{background:var(--ink);color:#fff;border-radius:var(--r);padding:34px;margin-top:14px;
  display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:1.6rem;margin:0 0 5px}
.cta-band p{color:#9fb0bd;margin:0;font-size:.92rem;max-width:52ch}
.cta-band .btn{border-color:#fff;color:#fff}
.cta-band .btn:hover{background:#fff;color:var(--ink)}
.cta-band .btn-red{border-color:var(--red)}
@media(max-width:1080px){.two{grid-template-columns:1fr}.grid3{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.phead h1{font-size:1.9rem}.grid2,.grid3{grid-template-columns:1fr}
  .prose{padding:22px}.cta-band{flex-direction:column;align-items:flex-start}}

/* ================= knowledge engine ================= */
.kmeta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:14px;padding-top:12px;border-top:1px solid var(--line-2);
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--dim);letter-spacing:.06em}
.kmeta b{color:var(--ink-2);font-weight:600}
.ktag{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.12em;
  background:var(--mint-l);color:#00705f;padding:4px 9px;border-radius:99px;font-weight:600}
.answer{background:var(--mint-l);border:1px solid #b8e6dd;border-radius:var(--r);padding:18px 20px;margin-bottom:22px}
.answer .l{font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.14em;color:#00705f;font-weight:600;display:block;margin-bottom:7px}
.answer p{margin:0;font-size:1.02rem;line-height:1.65;color:var(--ink-2)}
.refs{background:var(--tile-2);border:1px solid var(--line-2);border-radius:var(--r);padding:20px 22px;margin-top:26px}
.refs h3{font-size:.95rem;margin-bottom:10px;font-family:"IBM Plex Mono",monospace;letter-spacing:.08em;text-transform:uppercase}
.refs ol{margin:0;padding-left:18px}
.refs li{font-size:.82rem;color:var(--body);line-height:1.55;margin-bottom:7px}
.refs a{color:var(--ink);border-bottom:1px solid var(--line)}
.refs a:hover{color:var(--red);border-color:var(--red)}
.rev{margin-top:16px;padding:12px 14px;background:var(--tile-2);border-left:3px solid var(--mint);font-size:.8rem;color:var(--body)}
.dtab{width:100%;border-collapse:collapse;margin:0 0 1.2rem;font-size:.9rem}
.dtab th{background:var(--ink);color:#fff;text-align:left;padding:9px 11px;font-family:"IBM Plex Mono",monospace;
  font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.dtab td{padding:9px 11px;border-bottom:1px solid var(--line-2);color:var(--body)}
.dtab tr:nth-child(even) td{background:var(--tile-2)}
.dtab td b{color:var(--ink)}
.filters{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.fbtn{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.08em;padding:7px 13px;
  background:var(--tile);border:1px solid var(--line);border-radius:99px;color:var(--ink-2);cursor:pointer;transition:.14s}
.fbtn:hover{border-color:var(--ink)}
.fbtn.on{background:var(--ink);border-color:var(--ink);color:#fff}
.kcard{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:22px;transition:.16s;display:block}
.kcard:hover{border-color:var(--ink);transform:translateY(-2px)}
.kcard .kt{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.12em;color:#00705f;font-weight:600}
.kcard h3{font-size:1.05rem;margin:9px 0 6px;line-height:1.25}
.kcard p{font-size:.85rem;color:var(--body);margin:0;line-height:1.5}
.kcard .kd{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:var(--dim);margin-top:11px}

/* ================= NPV calculator ================= */
.calc{background:var(--ink);border-radius:var(--r);padding:26px;color:#fff;margin:0 0 14px}
.calc h3{color:#fff;font-size:1.2rem;margin-bottom:4px}
.calc .cs{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.12em;color:#7d8b97;margin-bottom:18px;display:block}
.cin{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}
.cf label{display:block;font-family:"IBM Plex Mono",monospace;font-size:.58rem;letter-spacing:.1em;
  text-transform:uppercase;color:#8d9aa6;margin-bottom:4px}
.cf input{width:100%;padding:9px 10px;border:1px solid rgba(255,255,255,.18);border-radius:3px;
  background:rgba(255,255,255,.06);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:.9rem}
.cf input:focus{outline:none;border-color:var(--mint);background:rgba(255,255,255,.1)}
.cres{margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14)}
.crow{display:grid;grid-template-columns:1fr auto;gap:10px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.08);align-items:baseline}
.crow span{font-size:.86rem;color:#9fb0bd}
.crow b{font-family:"IBM Plex Mono",monospace;font-size:1.02rem;color:#fff;white-space:nowrap}
.crow.bad b{color:#ff8b8b}.crow.good b{color:#4fd6bd}
.verdict{margin-top:16px;padding:16px 18px;border-radius:3px;background:rgba(0,168,142,.14);border:1px solid rgba(0,168,142,.4)}
.verdict .vl{font-family:"IBM Plex Mono",monospace;font-size:.58rem;letter-spacing:.12em;color:#4fd6bd;display:block;margin-bottom:6px}
.verdict .vv{font-family:"Archivo",sans-serif;font-size:2rem;font-weight:700;color:#fff;line-height:1;letter-spacing:-.03em}
.verdict.neg{background:rgba(255,120,120,.12);border-color:rgba(255,120,120,.4)}
.verdict.neg .vl{color:#ff8b8b}
.verdict p{margin:8px 0 0;font-size:.83rem;color:#9fb0bd}
.cnote{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:#8d9aa6;margin-top:14px;line-height:1.6}
@media(max-width:680px){.cin{grid-template-columns:1fr}}

/* ================= emergency + sectors + products ================= */
.emg{background:var(--red);border-radius:var(--r);padding:26px 28px;color:#fff;margin-bottom:14px}
.emg .el{font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.14em;color:#ffd9da;display:block;margin-bottom:8px}
.emg h2{color:#fff;font-size:1.55rem;margin:0 0 6px}
.emg p{color:#ffe3e4;margin:0 0 16px;font-size:.95rem;max-width:60ch}
.emg .er{display:flex;gap:9px;flex-wrap:wrap}
.emg .btn{border-color:#fff;color:#fff}
.emg .btn:hover{background:#fff;color:var(--red)}
.emg .btn-w{background:#fff;color:var(--red);border-color:#fff}
.emg .btn-w:hover{background:var(--paper)}
.tel-big{font-family:"Archivo",sans-serif;font-size:2.1rem;font-weight:700;color:#fff;letter-spacing:-.03em;
  display:block;margin:0 0 14px;line-height:1}
.steps-n{list-style:none;padding:0;margin:0 0 1.1rem;counter-reset:s}
.steps-n li{counter-increment:s;position:relative;padding:12px 0 12px 40px;border-top:1px solid var(--line-2);font-size:.97rem;line-height:1.6}
.steps-n li:before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:12px;
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--red);font-weight:700}
.sysgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:0 0 1.2rem}
.sysgrid div{background:var(--tile-2);border:1px solid var(--line-2);border-radius:3px;padding:11px 13px;font-size:.88rem;color:var(--ink-2)}
.sysgrid div b{display:block;font-family:"IBM Plex Mono",monospace;font-size:.58rem;color:var(--dim);letter-spacing:.1em;margin-bottom:3px}
.spec{width:100%;border-collapse:collapse;margin:0 0 14px;font-size:.86rem}
.spec td{padding:7px 0;border-bottom:1px solid var(--line-2);color:var(--body)}
.spec td:first-child{font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.08em;color:var(--dim);
  text-transform:uppercase;width:42%}
.spec td:last-child{color:var(--ink);font-weight:500}
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media(max-width:1080px){.sectors{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.sectors,.sysgrid{grid-template-columns:1fr}}


/* ---------- calc2 engine (in-article calculators) ---------- */
.calc-h{margin-bottom:18px}
.calc-h .l{font-family:"IBM Plex Mono",monospace;font-size:.6rem;letter-spacing:.14em;color:var(--mint);display:block;margin-bottom:8px}
.calc-h h3{color:#fff;font-size:1.25rem;margin:0 0 6px}
.calc-h p{color:#98a5b1;font-size:.9rem;margin:0}
.calc-g{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px}
.calc-g label{display:flex;flex-direction:column;font-family:"IBM Plex Mono",monospace;font-size:.58rem;
  letter-spacing:.1em;text-transform:uppercase;color:#9aa7b3;gap:3px}
.calc-g label span{color:#93a1ad;text-transform:none;letter-spacing:.04em;font-size:.62rem}
.calc-g input{width:100%;margin-top:5px;padding:9px 10px;border:1px solid rgba(255,255,255,.18);border-radius:3px;
  background:rgba(255,255,255,.06);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:.95rem}
.calc-g input:focus{outline:none;border-color:var(--mint);background:rgba(255,255,255,.1)}
.calc .dtab{margin:0 0 18px;font-size:.85rem;background:transparent}
.calc .dtab th{color:#8d9aa6;border-bottom-color:rgba(255,255,255,.2);background:transparent}
.calc .dtab td{color:#d7dee4;border-bottom-color:rgba(255,255,255,.09)}
.calc .dtab b{color:#fff;font-family:"IBM Plex Mono",monospace}
.calc-r{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:14px}
.calc-r>div{background:rgba(255,255,255,.06);border-radius:3px;padding:14px 16px}
.calc-r>div.hi{background:var(--mint);color:var(--ink)}
.calc-r .l{font-family:"IBM Plex Mono",monospace;font-size:.55rem;letter-spacing:.12em;color:#8d9aa6;display:block;margin-bottom:6px}
.calc-r>div.hi .l{color:rgba(11,14,17,.62)}
.calc-r b{font-size:1.5rem;font-family:"Archivo",sans-serif;color:#fff;line-height:1.1}
.calc-r>div.hi b{color:var(--ink)}
.calc-verdict{font-size:.9rem;line-height:1.55;padding:12px 14px;border-radius:3px;margin:0 0 14px;
  background:rgba(255,255,255,.06);border-left:2px solid #6c7a86;color:#d7dee4}
.calc-verdict.ok{border-left-color:var(--mint);color:#cdeee7}
.calc-verdict.warn{border-left-color:var(--amber);color:#f4e3c4}
.calc-verdict.bad{border-left-color:var(--red-l);color:#f6d5d5}
.calc-warn{display:none;font-size:.85rem;line-height:1.55;padding:12px 14px;border-radius:3px;margin:0 0 14px;
  background:rgba(255,255,255,.06);border-left:2px solid var(--amber);color:#f4e3c4}
.calc-work{margin:0 0 14px;border-top:1px solid rgba(255,255,255,.12);padding-top:12px}
.calc-work summary{cursor:pointer;font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--mint);list-style:none}
.calc-work summary::-webkit-details-marker{display:none}
.calc-work summary:before{content:"+ ";}
.calc-work[open] summary:before{content:"\2212 ";}
.calc-work p{color:#b6c1cb;font-size:.85rem;line-height:1.6;margin:12px 0}
.calc-note{font-size:.78rem;line-height:1.6;color:#7d8b97;margin:0;border-top:1px solid rgba(255,255,255,.1);padding-top:12px}
.calc-note a{color:#9fb4c4}
@media(max-width:640px){.calc{padding:18px}.calc-r b{font-size:1.25rem}}

/* ================= design-4 additions ================= */
@media(max-width:680px){
  .hero-water,.phead-water{background-image:url("assets/water-800.jpg");animation:none}
}
/* article table of contents */
.toc{background:var(--tile-2);border:1px solid var(--line-2);border-radius:var(--r);padding:16px 18px;margin-bottom:18px}
.toc .l{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.14em;color:var(--dim);text-transform:uppercase;display:block;margin-bottom:9px;font-weight:600}
.toc ol{margin:0;padding-left:18px}
.toc li{font-size:.86rem;line-height:1.7}
.toc a{color:var(--ink-2)}
.toc a:hover{color:var(--red)}
/* document / download cards */
.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.doc{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:8px}
.doc .dk{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.12em;color:var(--dim);text-transform:uppercase;font-weight:600}
.doc h3{font-size:1.02rem;margin:0}
.doc p{font-size:.85rem;color:var(--body);margin:0;line-height:1.5}
.doc .pend{font-family:"IBM Plex Mono",monospace;font-size:.66rem;color:#9a6b00;background:#faf3e3;border:1px solid #eadfc4;border-radius:99px;padding:3px 9px;align-self:flex-start}
/* QR box */
.qrbox{display:flex;gap:14px;align-items:center;background:var(--tile-2);border:1px solid var(--line-2);border-radius:var(--r);padding:14px 16px;margin-top:14px}
.qrbox img{width:96px;height:96px;flex:none;border:1px solid var(--line-2);border-radius:3px;background:#fff}
.qrbox p{margin:0;font-size:.82rem;color:var(--body);line-height:1.5}
@media(max-width:1080px){.qrbox{display:none}}
/* order composer */
.sku{background:var(--tile);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:10px}
.sku-hd{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.sku h3{font-size:1.06rem;margin:0}
.sku .pk{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--dim)}
.qty{display:flex;align-items:center;gap:0;border:1.5px solid var(--line);border-radius:var(--r);overflow:hidden}
.qty button{width:36px;height:38px;border:0;background:var(--tile-2);color:var(--ink);font-size:1.1rem;cursor:pointer;font-family:"IBM Plex Mono",monospace}
.qty button:hover{background:var(--line-2)}
.qty input{width:52px;height:38px;border:0;text-align:center;font-family:"IBM Plex Mono",monospace;font-size:.95rem;color:var(--ink);background:#fff}
.sku-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:12px}
/* copy-summary button feedback */
.copied{background:var(--mint)!important;border-color:var(--mint)!important;color:#fff!important}
/* print — the compliance file */
@media print{
  .topbar,header,.wa,.mbar,.cta-band,.menu-btn,footer .wrap>div:not(:first-child),.side .btn,.toc,.qrbox{display:none!important}
  body{background:#fff;color:#222;padding-bottom:0}
  .hero-water,.phead-water{display:none}
  .prose,.tile,.side,.faq-i,.kcard,.doc{border:1px solid #ccc;box-shadow:none}
  .calc,.rr,.t-auth,.emg,.cta-band{background:#fff!important;color:#222!important;border:1px solid #999}
  .calc h3,.calc-h h3,.t-auth h3,.emg h2{color:#111!important}
  footer{background:#fff;color:#444;margin-top:20px}
  .legal{color:#444;border-top:1px solid #ccc}
  a[href^="http"]:not(.btn):after{content:" (" attr(href) ")";font-size:.75em;color:#666}
}

/* phone: calculator result rows stack label over value */
@media(max-width:520px){.crow{grid-template-columns:1fr;gap:2px;align-items:start}.crow b{white-space:normal;overflow-wrap:anywhere}}
/* phone: 44-px tap target for the menu button */
@media(max-width:1080px){.menu-btn{min-height:44px;min-width:44px}}
/* industries grid: a lone last card spans the row */
.sectors>.kcard:last-child:nth-child(3n+1){grid-column:1/-1}
@media(max-width:1080px){.sectors>.kcard:last-child:nth-child(3n+1){grid-column:auto}.sectors>.kcard:last-child:nth-child(2n+1){grid-column:1/-1}}
@media(max-width:680px){.sectors>.kcard:last-child{grid-column:auto}}
/* phone polish (2 Sep 2026): top bar, header CTA, tap targets, table headers */
@media(max-width:680px){
.tb-r{flex-wrap:wrap;justify-content:center;gap:4px 14px;font-size:.66rem}
.tb-r a{white-space:nowrap}
footer a{display:inline-block;padding:5px 0}
.chip,.jump a,.related a{min-height:36px;display:inline-flex;align-items:center}
.hlink{display:inline-block;padding:8px 0}
.tblw th,.tblw td:first-child,.mgrid th{white-space:nowrap}
.tblw td{overflow-wrap:normal}
}
@media(max-width:480px){
.tb-r a[href$="documents.html"]{display:none}
.tb-r{gap:2px 7px;font-size:.62rem}
.tb-r a{padding:4px 2px}
header .btn{white-space:nowrap;font-size:.8rem;padding:10px 12px}
}
/* dark calculator cards: keep striped rows readable */
.calc .dtab tr:nth-child(even) td{background:rgba(255,255,255,.06)}
.calc .dtab td{color:#dfe6ec}
.calc .dtab td b{color:#fff}
/* phone polish 2 (2 Sep 2026): from the 20-page visual review */
.cta-band p a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.prose .calc-note,.prose .cnote,.calc .calc-note,.calc .cnote{color:#9fb0bd}
.calc-r .l{font-size:.62rem}
.calc .dtab td b,.calc .dtab td:last-child{white-space:nowrap}
.tile-hd{flex-wrap:wrap;gap:6px 12px}
.tile-hd .lbl,.tile-hd a{white-space:nowrap}
.sec-hd .lbl{white-space:nowrap;flex:0 0 auto}
.faq-i h3{line-height:1.3}
.calc-work summary{padding:12px 0;min-height:44px;display:flex;align-items:center}
@media(max-width:680px){
.topbar .wrap{padding:5px 16px}
.topbar a,.tb-r a{display:inline-flex;align-items:center;min-height:0;padding:4px 5px;margin:0}
.tile-hd a,.tile-hd .lbl a,a.lbl{display:inline-block;padding:10px 0}
.toc a{display:inline-block;padding:6px 0}
.crumb a{display:inline-block;padding:8px 0}
.qty button{width:44px;height:44px}
.cf input{padding:12px 10px;min-height:44px}
footer a{padding:8px 0}
.tblw>table{width:auto;min-width:100%}
.tblw.tblw-wide>table{min-width:520px}
}
/* industry photos (Phase 2, 2 Sep 2026) */
.kcard .kimg{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:4px;margin:0 0 14px;background:var(--tile-2)}
.sfig{margin:0 0 22px}
.sfig img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r);background:var(--tile-2)}
/* spanning industry card: photo left, text right (kbody wrapper) */
@media(min-width:681px){.sectors>.kcard:last-child:nth-child(3n+1),.sectors>.kcard:last-child:nth-child(2n+1){display:block}
.sectors>.kcard:last-child:nth-child(3n+1):has(.kbody){display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:26px;align-items:center}
.sectors>.kcard:last-child:nth-child(3n+1):has(.kbody) .kimg{margin:0}}
@media(min-width:681px) and (max-width:1080px){.sectors>.kcard:last-child:nth-child(2n+1):has(.kbody){display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:22px;align-items:center}
.sectors>.kcard:last-child:nth-child(2n+1):has(.kbody) .kimg{margin:0}}
/* narrow phones (≤400 px): the Chinese top bar drops the SDS link so the rest stays on one line */
@media(max-width:400px){html[lang^="zh"] .tb-r a[href$="sds.html"]{display:none}}
/* home bento (3 Sep 2026): hospitals stat tile + chem list links */
@media(min-width:681px){.t-hosp{grid-column:span 4}}
.chem-l li>div{min-width:0}
.chem-l a{color:inherit}
.chem-l a:hover{color:var(--red)}
/* SVG diagrams in figures keep their own aspect ratio (photos stay 16:10) */
.sfig img[src$=".svg"]{aspect-ratio:auto;object-fit:contain;background:#f5f7f9;padding:6px 0}