/* Druckluft-Fachbuch – gemeinsames Stylesheet (compressedair.network/fachbuch/) */
:root{--navy:#14305c;--navy2:#0d2246;--blue:#1e7fd4;--cyan:#2ec5ea;--soft:#eaf6fc;--soft2:#f5f8fc;--ink:#33475b;--muted:#5f6b7a;--line:#e3e9f2}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.6}
img{max-width:100%;height:auto}
main{display:block;padding-bottom:20px}

/* Portal-Kopf (compressedair.network) */
.cnh{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}
.cnh .cnh-bar{max-width:1180px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.cnh .cnh-logo img{display:block;width:300px;height:auto}
.cnh .cnh-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.cnh .cnh-nav a{color:var(--navy);text-decoration:none;font-size:15px;font-weight:600;padding:8px 12px;border-radius:8px}
.cnh .cnh-nav a:hover{background:var(--soft)}
.cnh .cnh-nav a.cnh-search{border:2px solid var(--blue);color:var(--blue);border-radius:999px;padding:7px 16px;margin-left:6px}
@media (max-width:900px){.cnh .cnh-logo img{width:230px}.cnh .cnh-nav a{font-size:14px;padding:6px 8px}}
@media (max-width:560px){.cnh .cnh-bar{justify-content:center}.cnh .cnh-nav{justify-content:center}}

/* Fachbuch-Band */
.fbk{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);margin:0 0 28px}
.fbk a{text-decoration:none}
.fbk .fbk-top{max-width:1180px;margin:0 auto;padding:14px 20px 8px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.fbk .fbk-brand{color:#fff}
.fbk .fbk-brand b{display:block;font-size:22px;line-height:1.15;color:#fff}
.fbk .fbk-brand span{display:block;font-size:13px;color:rgba(255,255,255,.75)}
.fbk .fbk-toc{background:var(--cyan);color:var(--navy);font-weight:700;font-size:14px;padding:8px 16px;border-radius:999px}
.fbk ol{list-style:none;margin:0;padding:0}
.fbk .fbk-chapters ol{margin:0 auto;padding:6px 20px 12px;max-width:1180px;display:flex;gap:4px;flex-wrap:wrap}
.fbk .fbk-chapters a{display:block;color:rgba(255,255,255,.85);font-size:13px;padding:6px 10px;border-radius:8px}
.fbk .fbk-chapters a:hover{background:rgba(255,255,255,.1);color:#fff}
.fbk .n{color:var(--cyan);font-weight:700;margin-right:5px}
.fbk .fbk-chapters a.is-active{background:#fff;color:var(--navy);font-weight:700}
.fbk .fbk-chapters a.is-active .n{color:var(--blue)}
.fbk .fbk-mobile{display:none}
@media (max-width:760px){
  .fbk .fbk-chapters{display:none}
  .fbk .fbk-mobile{display:block;border-top:1px solid rgba(255,255,255,.14);padding:8px 20px 12px}
  .fbk summary{color:#fff;font-weight:700;cursor:pointer;font-size:14px}
  .fbk .fbk-mobile ol{margin-top:8px}
  .fbk .fbk-mobile a{display:block;color:#fff;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:14px}
  .fbk .fbk-mobile a.is-active{color:var(--cyan);font-weight:700}
}

/* Inhalt */
.fb{--navy:#14305c;--navy2:#0d2246;--blue:#1e7fd4;--cyan:#2ec5ea;--soft:#eaf6fc;--soft2:#f5f8fc;--ink:#33475b;--muted:#5f6b7a;--line:#e3e9f2;--warn:#c07a12;--warnbg:#fbf0dc;--red:#c0392b;--mono:'Courier New',ui-monospace,monospace;
      max-width:1000px;margin:0 auto;padding:0 20px 30px;color:var(--ink);font-size:16px;line-height:1.65}
    .fb *{box-sizing:border-box}
    .fb a{color:var(--blue);font-weight:600;text-decoration:none}
    .fb a:hover{text-decoration:underline}
    .fb .fb-crumb{font-size:13px;color:var(--muted);margin:0 0 14px}
    .fb .fb-crumb a{font-weight:600}
    .fb .fb-eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);font-weight:700;margin:0 0 8px}
    .fb h1{font-size:clamp(26px,3.4vw,36px);line-height:1.2;color:var(--navy);margin:0 0 14px}
    .fb h2{font-size:22px;line-height:1.3;color:var(--navy);margin:38px 0 14px;padding-top:6px;border-top:1px solid var(--line)}
    .fb h3{font-size:17px;color:var(--navy);margin:0 0 6px}
    .fb p{margin:0 0 12px}
    .fb .fb-lead{font-size:18px;background:var(--soft);border-left:5px solid var(--blue);border-radius:0 12px 12px 0;padding:16px 20px;margin:0 0 8px}
    .fb .fb-meta{font-size:13px;color:var(--muted);margin:10px 0 0}
    .fb table{width:100%;border-collapse:collapse;margin:6px 0 10px;font-size:15px}
    .fb th{background:var(--navy);color:#fff;text-align:left;padding:10px 12px;font-weight:600}
    .fb td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
    .fb td.v{font-family:var(--mono);font-weight:700;color:var(--navy);white-space:nowrap;font-size:16px}
    .fb tr:nth-child(even) td{background:var(--soft2)}
    .fb .fb-tablewrap{overflow-x:auto}
    .fb ul.fb-list{margin:0 0 12px;padding-left:20px}
    .fb ul.fb-list li{margin:0 0 6px}
    .fb .fb-warn{background:var(--warnbg);border-left:5px solid var(--warn);border-radius:0 12px 12px 0;padding:14px 18px}
    .fb .fb-warn ul{margin:6px 0 0;padding-left:20px}
    .fb .fb-warn li{margin:0 0 5px}
    .fb .fb-formula{font-family:var(--mono);background:var(--navy);color:#fff;border-radius:12px;padding:14px 18px;font-size:16px;margin:6px 0 12px;overflow-x:auto}
    .fb .fb-formula small{display:block;color:rgba(255,255,255,.7);font-size:13px;margin-top:6px;font-family:inherit}
    .fb .fb-calc{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff;box-shadow:0 6px 18px rgba(20,48,92,.06)}
    .fb .fb-calc label{display:block;font-size:13px;font-weight:700;color:var(--navy);margin:0 0 6px}
    .fb .fb-calc input{width:100%;max-width:240px;padding:10px 12px;border:1px solid #c9d6e8;border-radius:10px;font-size:16px;font-family:var(--mono)}
    .fb .fb-calc-res{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .fb .fb-calc-res div{background:var(--soft);border-radius:10px;padding:12px}
    .fb .fb-calc-res span{display:block;font-size:12.5px;color:var(--muted)}
    .fb .fb-calc-res b{display:block;font-family:var(--mono);font-size:20px;color:var(--navy)}
    .fb .fb-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .fb .fb-card{border:1px solid var(--line);border-top:4px solid var(--cyan);border-radius:12px;padding:14px 16px;background:#fff}
    .fb .fb-card p{font-size:15px;margin:0 0 8px}
    .fb .fb-card .more{font-size:14px}
    .fb .fb-tip{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);color:#fff;border-radius:14px;padding:18px 20px}
    .fb .fb-tip .fb-tip-h{color:var(--cyan);display:block;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
    .fb .fb-tip p{margin:0}
    .fb details{border:1px solid var(--line);border-radius:10px;padding:0 16px;margin:0 0 8px;background:#fff}
    .fb summary{cursor:pointer;font-weight:700;color:var(--navy);padding:13px 0}
    .fb details p{margin:0 0 14px}
    .fb .fb-author{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:30px;background:var(--soft2)}
    .fb .fb-author img{width:64px;height:64px;border-radius:50%;object-fit:cover;flex:0 0 64px}
    .fb .fb-author p{margin:0;font-size:14.5px}
    .fb .fb-pager{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;margin-top:22px}
    .fb .fb-pager a{display:block;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;font-weight:600}
    .fb .fb-pager a span{display:block;font-size:12px;color:var(--muted);font-weight:400}
    .fb .fb-pager .next{text-align:right}
    .fb .fb-pager .toc{align-self:center;text-align:center}
    @media (max-width:720px){
      .fb .fb-cards,.fb .fb-calc-res{grid-template-columns:1fr}
      .fb .fb-pager{grid-template-columns:1fr}
      .fb .fb-pager .next{text-align:left}
    }

.fb .fb-soon{color:var(--muted);font-weight:600}
.fb .fb-soon em,.fb .soon em{font-style:normal;font-size:12.5px;color:var(--muted);font-weight:400}
.fb .fb-pager span.fb-soon,.fb .fb-pager>span.fb-soon{display:block;border:1px dashed var(--line);border-radius:12px;padding:12px 14px;background:var(--soft2)}
.fb ol.fb-toc{list-style:none;margin:0 0 10px;padding:0;border-top:1px solid var(--line)}
.fb ol.fb-toc li{padding:10px 4px;border-bottom:1px solid var(--line)}
.fb ol.fb-toc li a,.fb ol.fb-toc li>span{font-weight:700;color:var(--navy)}
.fb ol.fb-toc li a{color:var(--blue)}
.fb ol.fb-toc li small{display:block;color:var(--muted);font-size:13.5px}
.fb ol.fb-toc .tn{display:inline-block;min-width:38px;font-family:var(--mono);color:var(--blue)}
.fb ol.fb-toc li.soon .tn{color:var(--muted)}
.fb .fb-chs{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.fb .fb-ch{border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:14px;padding:16px 18px;background:#fff}
.fb .fb-ch h2{margin:0 0 6px;padding:0;border:0;font-size:19px}
.fb .fb-ch h2 .cn{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
.fb .fb-ch p{font-size:14.5px;color:var(--muted)}
.fb .fb-ch ol.fb-toc li{padding:7px 2px;font-size:14.5px}
.fb .fb-ch ol.fb-toc li small{display:none}
@media (max-width:720px){.fb .fb-chs{grid-template-columns:1fr}}

/* Magazin-Block */
.mg{max-width:1000px;margin:34px auto 0;padding:26px 20px 10px;border-top:1px solid var(--line)}
.mg-eyebrow{font-family:'Courier New',ui-monospace,monospace;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);font-weight:700;margin:0 0 6px}
.mg h2{font-size:22px;color:var(--navy);margin:0 0 16px}
.mg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mg-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;text-decoration:none;color:var(--ink);transition:transform .15s ease,box-shadow .15s ease}
.mg-card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(20,48,92,.12)}
.mg-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--soft)}
.mg-card .mg-cat,.mg-card b,.mg-card .mg-ex,.mg-card .mg-more{padding:0 14px}
.mg-card .mg-cat{margin-top:12px;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--blue);font-weight:700}
.mg-card b{color:var(--navy);font-size:16px;line-height:1.35;margin:4px 0 6px}
.mg-card .mg-ex{font-size:14px;color:var(--muted);flex-grow:1}
.mg-card .mg-more{margin:10px 0 14px;font-weight:700;color:var(--blue);font-size:14px}
.mg-all{margin:14px 0 0}
.mg-all a{color:var(--blue);font-weight:700;text-decoration:none}
@media (max-width:860px){.mg-grid{grid-template-columns:1fr}}

/* Fusszeile */
.fbf{background:var(--navy);color:rgba(255,255,255,.8);margin-top:40px;padding:22px 20px;text-align:center;font-size:14px}
.fbf nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:10px}
.fbf a{color:#fff;text-decoration:none}
.fbf a:hover{text-decoration:underline}
.fbf p{margin:0;font-size:13px}
.fb .fb-pager .fb-soon span{display:block;font-size:12px;color:var(--muted);font-weight:400}
.fb .fb-pager .next.fb-soon{text-align:right}
.fbk .fbk-brand .fbk-sep{font-style:normal;font-weight:400;margin:0 14px;color:rgba(255,255,255,.85)}
.fbk .fbk-brand .fbk-claim{font-style:normal;font-weight:600;font-size:20px;color:#fff}
@media (max-width:760px){.fbk .fbk-brand .fbk-sep{display:none}.fbk .fbk-brand .fbk-claim{display:block;font-size:15px;margin-top:2px}}
/* Fachbuch-Band: luftiger, selbstbewusster (Roland 15.10.) */
.fbk .fbk-top{padding:30px 20px 18px}
.fbk .fbk-brand b{font-size:30px;line-height:1.2;letter-spacing:-.01em}
.fbk .fbk-brand .fbk-claim{font-size:26px}
.fbk .fbk-brand .fbk-sep{margin:0 18px}
.fbk .fbk-brand span{font-size:14.5px;margin-top:6px}
.fbk .fbk-toc{font-size:15px;padding:11px 22px}
.fbk .fbk-chapters ol{padding:4px 20px 18px}
.fbk .fbk-chapters a{font-size:14px;padding:7px 11px}
@media (max-width:760px){.fbk .fbk-top{padding:22px 20px 14px}.fbk .fbk-brand b{font-size:24px}.fbk .fbk-brand .fbk-claim{font-size:17px;margin-top:4px}}
.fbk .fbk-chapters ol{gap:2px}
.fbk .fbk-chapters a{font-size:13.5px;padding:7px 9px}
.fb .fb-calc-in{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.fb .fb-calc-in input{max-width:none}
.fb > h3{margin-top:26px}
    .ch-leakhub{
      --navy-900:#14305c; --blue-600:#1e7fd4; --cyan-400:#2ec5ea; --blue-100:#eaf6fc;
      --ink-700:#33475b; --muted-600:#5f6b7a; --border:#e3e9f2;
      --amber-700:#c07a12; --amber-100:#fbf0dc; --red-700:#c0392b;
      --mono:'Courier New', ui-monospace, monospace;
      color:var(--ink-700);
    }
    .ch-leakhub *{ box-sizing:border-box; }
    .ch-leakhub .lh-wrap{ max-width:1180px; margin:0 auto; padding:0 24px; }
    .ch-leakhub .lh-crumb{ font-size:12.5px; color:var(--muted-600); padding:20px 0 0; }
    .ch-leakhub .lh-crumb a{ color:var(--blue-600); text-decoration:none; font-weight:600; }

    /* Kopf */
    .ch-leakhub .lh-hero{ padding:28px 0 8px; max-width:820px; }
    .ch-leakhub .lh-eyebrow{ font-family:var(--mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--blue-600); font-weight:700; margin:0 0 12px; }
    .ch-leakhub h1{ font-size:clamp(28px,4vw,40px); line-height:1.2; color:var(--navy-900); margin:0 0 16px; font-weight:800; }
    .ch-leakhub .lh-lede{ font-size:16.5px; line-height:1.65; margin:0 0 12px; }
    .ch-leakhub p{ line-height:1.65; }

    /* Auswahl */
    .ch-leakhub .lh-choose{ margin:32px 0 12px; }
    .ch-leakhub .lh-choose h2{ font-size:clamp(20px,2.4vw,26px); color:var(--navy-900); margin:0 0 16px; font-weight:800; }
    .ch-leakhub .lh-choose-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
    .ch-leakhub .lh-pick{ display:flex; flex-direction:column; gap:8px; background:#fff; border:1px solid var(--border); border-radius:16px; padding:20px; text-decoration:none; color:var(--ink-700); transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease; }
    .ch-leakhub .lh-pick:hover{ transform:translateY(-3px); box-shadow:0 10px 24px rgba(20,48,92,.10); border-color:var(--blue-600); }
    .ch-leakhub .lh-pick-num{ font-family:var(--mono); font-size:12px; font-weight:700; color:var(--blue-600); letter-spacing:.06em; text-transform:uppercase; }
    .ch-leakhub .lh-pick h3{ margin:0; font-size:17px; color:var(--navy-900); line-height:1.35; }
    .ch-leakhub .lh-pick p{ margin:0; font-size:14px; }
    .ch-leakhub .lh-pick .lh-need{ font-size:12.5px; color:var(--muted-600); margin-top:auto; padding-top:8px; border-top:1px dashed var(--border); }
    .ch-leakhub .lh-pick .lh-go{ font-size:13px; font-weight:700; color:var(--blue-600); }

    /* Tool-Sektionen */
    .ch-leakhub .lh-tool{
      margin:28px 0 0; padding:48px 32px; border-radius:24px; scroll-margin-top:90px;
      background:
        linear-gradient(#eef2f7 1px, transparent 1px) 0 0/32px 32px,
        linear-gradient(90deg, #eef2f7 1px, transparent 1px) 0 0/32px 32px,
        #ffffff;
    }
    .ch-leakhub .lh-tool-head{ max-width:760px; margin-bottom:24px; }
    .ch-leakhub .lh-tool-num{ font-family:var(--mono); font-size:12px; font-weight:700; color:var(--blue-600); letter-spacing:.08em; text-transform:uppercase; margin:0 0 8px; }
    .ch-leakhub .lh-tool h2{ font-size:clamp(22px,2.6vw,30px); color:var(--navy-900); margin:0 0 10px; font-weight:800; line-height:1.25; }
    .ch-leakhub .lh-tool-head p{ margin:0 0 10px; font-size:15.5px; }
    .ch-leakhub .lh-howto{ margin:12px 0 0; padding-left:20px; font-size:14.5px; line-height:1.6; }
    .ch-leakhub .lh-howto li{ margin-bottom:4px; }

    .ch-leakhub .lh-card{ background:#fff; border:1px solid var(--border); border-radius:20px; padding:32px; box-shadow:0 10px 30px rgba(20,48,92,.08); }
    .ch-leakhub .lh-grid{ display:grid; grid-template-columns:1.3fr 1fr; gap:40px; }
    .ch-leakhub .lh-row{ margin-bottom:24px; }
    .ch-leakhub .lh-row:last-child{ margin-bottom:0; }
    .ch-leakhub .lh-row-head{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-bottom:8px; font-size:14.5px; }
    .ch-leakhub .lh-row-head label{ font-weight:600; }
    .ch-leakhub .lh-val{ font-family:var(--mono); color:var(--navy-900); white-space:nowrap; }
    .ch-leakhub .lh-val b{ font-weight:700; }
    .ch-leakhub input[type="range"]{ -webkit-appearance:none; appearance:none; width:100%; height:6px; border-radius:3px; background:var(--border); accent-color:var(--blue-600); outline:none; cursor:pointer; }
    .ch-leakhub input[type="range"]:focus-visible{ outline:2px solid var(--blue-600); outline-offset:4px; }
    .ch-leakhub .lh-hint{ font-size:12.5px; color:var(--muted-600); margin:6px 0 0; line-height:1.5; }

    .ch-leakhub .lh-results{ border-left:1px solid var(--border); padding-left:32px; display:flex; flex-direction:column; justify-content:center; }
    .ch-leakhub .lh-res-label{ font-family:var(--mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--blue-600); margin:0 0 10px; font-weight:700; }
    .ch-leakhub .lh-res-main{ font-family:var(--mono); font-weight:800; color:var(--navy-900); font-size:clamp(30px,3.4vw,40px); line-height:1; margin:0 0 10px; }
    .ch-leakhub .lh-res-main .lh-unit{ font-size:18px; font-weight:400; }
    .ch-leakhub .lh-res-sub{ font-size:14px; color:var(--muted-600); margin:0 0 18px; }
    .ch-leakhub .lh-res-note{ font-size:12.5px; color:var(--muted-600); line-height:1.55; margin:0; padding-top:16px; border-top:1px dashed var(--border); }
    .ch-leakhub .lh-transfer{ margin-top:16px; align-self:flex-start; font-family:var(--mono); font-size:13.5px; font-weight:700; background:var(--navy-900); color:#fff; border:none; border-radius:8px; padding:12px 18px; cursor:pointer; }
    .ch-leakhub .lh-transfer:hover{ background:#0d2246; }
    .ch-leakhub .lh-transfer:focus-visible{ outline:2px solid var(--cyan-400); outline-offset:3px; }

    .ch-leakhub .lh-steps{ margin-top:28px; padding-top:24px; border-top:1px solid var(--border); }
    .ch-leakhub .lh-steps-title{ font-size:13px; font-weight:700; color:var(--navy-900); margin:0 0 12px; text-transform:uppercase; letter-spacing:.04em; }
    .ch-leakhub .lh-step{ font-family:var(--mono); font-size:13.5px; background:var(--blue-100); border-radius:8px; padding:10px 14px; margin-bottom:8px; line-height:1.5; word-break:break-word; }
    .ch-leakhub .lh-step:last-child{ margin-bottom:0; }

    /* Tool 3: einspaltig wie bisher */
    .ch-leakhub .lh-group{ margin-bottom:28px; padding-bottom:28px; border-bottom:1px dashed var(--border); }
    .ch-leakhub .lh-group:last-child{ margin-bottom:0; padding-bottom:0; border-bottom:none; }
    .ch-leakhub .lh-group-title{ font-family:var(--mono); font-size:11.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--blue-600); font-weight:700; margin:0 0 14px; padding-bottom:8px; border-bottom:1px solid var(--border); }
    .ch-leakhub .lh-derived{ font-size:13.5px; color:var(--navy-900); margin:8px 0 0; font-family:var(--mono); font-weight:700; }
    .ch-leakhub .lh-flow-row{ display:flex; justify-content:space-between; align-items:center; gap:16px; background:var(--blue-100); border-radius:12px; padding:14px 18px; }
    .ch-leakhub .lh-flow-row.result{ background:var(--navy-900); }
    .ch-leakhub .lh-flow-label{ font-size:14px; font-weight:600; }
    .ch-leakhub .lh-flow-row.result .lh-flow-label{ color:var(--cyan-400); }
    .ch-leakhub .lh-flow-val{ font-family:var(--mono); font-weight:800; color:var(--navy-900); font-size:19px; text-align:right; white-space:nowrap; }
    .ch-leakhub .lh-flow-val small{ font-weight:500; font-size:13px; color:var(--muted-600); }
    .ch-leakhub .lh-flow-row.result .lh-flow-val{ color:#fff; font-size:22px; }
    .ch-leakhub .lh-flow-op{ text-align:center; font-family:var(--mono); font-size:13px; font-weight:700; color:var(--blue-600); padding:8px 0; }
    .ch-leakhub .lh-kpi{ border-radius:14px; padding:18px 20px; background:var(--red-700); text-align:center; }
    .ch-leakhub .lh-kpi-label{ font-family:var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:.06em; color:#ffd9d4; font-weight:700; margin:0 0 8px; }
    .ch-leakhub .lh-kpi-val{ font-family:var(--mono); font-weight:800; color:#fff; font-size:38px; line-height:1; }
    .ch-leakhub .lh-kpi-sub{ font-size:12.5px; color:rgba(255,255,255,.88); margin:6px 0 0; }
    .ch-leakhub .lh-note{ border-radius:12px; padding:12px 14px; font-size:12.5px; line-height:1.6; margin-top:14px; }
    .ch-leakhub .lh-note.info{ background:var(--blue-100); }
    .ch-leakhub .lh-note.warn{ background:var(--amber-100); color:#7a5209; }
    .ch-leakhub .lh-note p{ margin:0; }
    .ch-leakhub .lh-note b{ color:var(--navy-900); }
    .ch-leakhub .lh-note ul{ margin:6px 0 0; padding-left:18px; }
    .ch-leakhub .lh-note li{ margin-bottom:4px; }

    /* Textteil */
    .ch-leakhub .lh-text{ max-width:780px; margin:48px 0 0; }
    .ch-leakhub .lh-text h2{ font-size:clamp(20px,2.4vw,26px); color:var(--navy-900); margin:0 0 12px; font-weight:800; }
    .ch-leakhub .lh-text p{ margin:0 0 14px; font-size:15.5px; }
    .ch-leakhub .lh-text ul, .ch-leakhub .lh-text ol{ margin:0 0 14px; padding-left:20px; font-size:15.5px; line-height:1.65; }
    .ch-leakhub .lh-text a{ color:var(--blue-600); font-weight:600; text-decoration:none; }
    .ch-leakhub .lh-text a:hover{ text-decoration:underline; }
    .ch-leakhub .lh-compare{ width:100%; border-collapse:collapse; font-size:14px; margin:4px 0 16px; }
    .ch-leakhub .lh-compare th, .ch-leakhub .lh-compare td{ text-align:left; padding:10px 12px; border-bottom:1px solid var(--border); vertical-align:top; }
    .ch-leakhub .lh-compare th{ font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:var(--muted-600); }
    .ch-leakhub .lh-table-scroll{ overflow-x:auto; }

    .ch-leakhub .lh-faq{ max-width:780px; margin:40px 0 0; }
    .ch-leakhub .lh-faq h2{ font-size:clamp(20px,2.4vw,26px); color:var(--navy-900); margin:0 0 12px; font-weight:800; }
    .ch-leakhub .lh-faq details{ border:1px solid var(--border); border-radius:12px; background:#fff; padding:14px 18px; margin-bottom:10px; }
    .ch-leakhub .lh-faq summary{ font-weight:700; color:var(--navy-900); cursor:pointer; font-size:15.5px; }
    .ch-leakhub .lh-faq details p{ margin:10px 0 0; font-size:15px; }

    .ch-leakhub .lh-cta{ margin:40px 0 56px; padding:36px 28px; border-radius:24px; background:var(--navy-900); color:#fff; text-align:center; }
    .ch-leakhub .lh-cta h2{ font-size:clamp(20px,2.6vw,26px); margin:0 0 10px; font-weight:800; color:#fff; }
    .ch-leakhub .lh-cta p{ color:#c9d6e8; max-width:600px; margin:0 auto 22px; font-size:15px; }
    .ch-leakhub .lh-cta a{ display:inline-block; font-family:var(--mono); font-size:14px; font-weight:700; padding:13px 24px; border-radius:8px; text-decoration:none; background:var(--cyan-400); color:var(--navy-900); margin:4px; }
    .ch-leakhub .lh-cta a.sec{ background:transparent; color:#fff; border:2px solid rgba(255,255,255,.4); }

    @media (max-width:900px){
      .ch-leakhub .lh-choose-grid{ grid-template-columns:1fr; }
      .ch-leakhub .lh-grid{ grid-template-columns:1fr; }
      .ch-leakhub .lh-results{ border-left:none; border-top:1px solid var(--border); padding-left:0; padding-top:24px; }
    }
    @media (max-width:560px){
      .ch-leakhub .lh-wrap{ padding:0 16px; }
      .ch-leakhub .lh-tool{ padding:32px 14px; }
      .ch-leakhub .lh-card{ padding:20px; }
      .ch-leakhub .lh-flow-row{ flex-direction:column; align-items:flex-start; gap:4px; }
      .ch-leakhub .lh-flow-val{ text-align:left; white-space:normal; }
    }
    @media (prefers-reduced-motion:reduce){
      .ch-leakhub .lh-pick{ transition:none; }
    }/* Leckage-Rechner im Fachbuch */
.fb .ch-leakhub{margin:10px 0 0}
.fb .ch-leakhub .lh-tool{margin:22px 0 0;padding:34px 24px}
.fb .ch-leakhub .lh-tool h2{border-top:0;padding-top:0;margin-top:0}
.fb .ch-leakhub .lh-howto{padding-left:20px}
.fb #fbKostRechner .fb-calc-in{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:720px){.fb #fbKostRechner .fb-calc-in{grid-template-columns:1fr 1fr}}
.fb #fbSlRechner .fb-calc-in{grid-template-columns:repeat(2,minmax(0,1fr))}
/* eingebettete Tools (z. B. Regeldiagramm) */
.fb-toolwrap{max-width:1180px;margin:8px auto 30px;padding:0 10px}
/* Reihenfolge-Kette (4.7) */
.fb .fb-chain{display:flex;flex-wrap:wrap;align-items:center;gap:8px 0;margin:10px 0 18px}
.fb .fb-chain span{background:#eef4fb;border:1px solid #c9d6e8;border-radius:10px;padding:8px 12px;font-size:14px;font-weight:600;color:var(--navy)}
.fb .fb-chain span{position:relative}
.fb .fb-chain span+span{margin-left:26px}
.fb .fb-chain span+span::before{content:"→";position:absolute;left:-20px;top:50%;transform:translateY(-50%);color:#7a8aa3;font-weight:700}
/* Eingabetabelle Trockner-Vergleich (4.6) */
.fb .fb-tvin input{width:100%;min-width:80px;padding:8px 10px;border:1px solid #c9d6e8;border-radius:8px;font-size:15px;font-family:inherit;background:#fff;box-sizing:border-box}
/* Regeldiagramm-Tool: Hinweis-Pille auf dem Handy umbrechen lassen */
@media (max-width:600px){.fb-toolwrap #rgTool .pill{white-space:normal;border-radius:14px;max-width:100%;box-sizing:border-box}.fb-toolwrap #rgTool .hero{flex-wrap:wrap}}

/* Kondensatmengen-Rechner (4.13), Tool-Styles unverändert übernommen */
.ch-cond-tool-block{
						      --navy-900:#14305c;
						      --blue-600:#1e7fd4;
						      --cyan-400:#2ec5ea;
						      --blue-100:#eaf6fc;
						      --ink-700:#33475b;
						      --muted-600:#5f6b7a;
						      --border:#e3e9f2;
						      --amber-700:#c07a12;
						      --amber-100:#fbf0dc;
						      --mono:'Courier New', ui-monospace, monospace;
						    }
						    .ch-cond-tool-block *{ box-sizing:border-box; }
						    .ch-cond-tool-block{
						      max-width:1180px; margin:0 auto; padding:56px 24px;
						      background:
						        linear-gradient(#eef2f7 1px, transparent 1px) 0 0/32px 32px,
						        linear-gradient(90deg, #eef2f7 1px, transparent 1px) 0 0/32px 32px,
						        #ffffff;
						      border-radius:24px;
						      font-family:inherit;
						    }
						    .ch-cond-tool-block h2{
						      font-size:clamp(22px,2.4vw,28px); color:var(--navy-900); margin:0 0 10px; font-weight:800;
						    }
						    .ch-cond-tool-block .ch-cond-intro{
						      color:var(--ink-700); font-size:16px; max-width:760px; margin:0 0 32px; line-height:1.6;
						    }
						
						    .ch-cond-tool-block .ch-cond-card{
						      background:#fff; border:1px solid var(--border); border-radius:20px;
						      padding:32px; box-shadow:0 10px 30px rgba(20,48,92,.08);
						    }
						
						    /* ---- Eingaben ---- */
						    .ch-cond-tool-block .ch-cond-grid{
						      display:grid; grid-template-columns:1.05fr .95fr; gap:40px;
						    }
						    .ch-cond-tool-block .ch-cond-group{ margin-bottom:24px; }
						    .ch-cond-tool-block .ch-cond-group:last-child{ margin-bottom:0; }
						    .ch-cond-tool-block .ch-cond-group-title{
						      font-family:var(--mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase;
						      color:var(--blue-600); font-weight:700; margin:0 0 14px;
						      padding-bottom:8px; border-bottom:1px solid var(--border);
						    }
						    .ch-cond-tool-block .ch-cond-field{ margin-bottom:14px; }
						    .ch-cond-tool-block .ch-cond-field:last-child{ margin-bottom:0; }
						    .ch-cond-tool-block .ch-cond-field label{
						      display:flex; justify-content:space-between; align-items:baseline;
						      font-size:13.5px; font-weight:600; color:var(--ink-700); margin-bottom:6px;
						    }
						    .ch-cond-tool-block .ch-cond-field label .ch-cond-unit{
						      font-weight:500; color:var(--muted-600); font-size:12.5px;
						    }
						    .ch-cond-tool-block input[type="number"],
						    .ch-cond-tool-block select,
						    .ch-cond-tool-block textarea{
						      width:100%; border:1px solid var(--border); border-radius:10px; padding:10px 12px;
						      font-size:15px; color:var(--navy-900); background:#fff; font-family:inherit;
						    }
						    .ch-cond-tool-block input[type="number"]:focus,
						    .ch-cond-tool-block select:focus,
						    .ch-cond-tool-block textarea:focus{
						      outline:none; border-color:var(--blue-600); box-shadow:0 0 0 3px rgba(30,127,212,.14);
						    }
						    .ch-cond-tool-block .ch-cond-row2{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
						    .ch-cond-tool-block .ch-cond-hint{
						      font-size:12px; color:var(--muted-600); margin-top:6px; line-height:1.5;
						    }
						    .ch-cond-tool-block textarea{ min-height:70px; resize:vertical; }
						
						    .ch-cond-tool-block .ch-cond-note-box{
						      border-radius:12px; padding:12px 14px; font-size:13px; line-height:1.6; margin-top:12px;
						    }
						    .ch-cond-tool-block .ch-cond-note-box.warn{ background:var(--amber-100); color:#7a5209; }
						    .ch-cond-tool-block .ch-cond-note-box.info{ background:var(--blue-100); color:var(--ink-700); }
						    .ch-cond-tool-block .ch-cond-note-box b{ color:var(--navy-900); }
						    .ch-cond-tool-block .ch-cond-note-box p{ margin:0 0 6px; }
						    .ch-cond-tool-block .ch-cond-note-box p:last-child{ margin-bottom:0; }
						
						    .ch-cond-tool-block .ch-cond-btns{
						      display:flex; gap:10px; flex-wrap:wrap; margin-top:22px; padding-top:20px;
						      border-top:1px solid var(--border);
						    }
						    .ch-cond-tool-block .ch-cond-btn{
						      display:inline-flex; align-items:center; justify-content:center; gap:6px;
						      padding:10px 16px; border-radius:10px; font-weight:700; font-size:13.5px;
						      text-decoration:none; cursor:pointer; border:1px solid var(--border);
						      background:#fff; color:var(--navy-900); transition:.15s ease;
						    }
						    .ch-cond-tool-block .ch-cond-btn:hover{ border-color:var(--blue-600); color:var(--blue-600); }
						    .ch-cond-tool-block .ch-cond-btn.primary{
						      background:var(--blue-600); border-color:var(--blue-600); color:#fff;
						    }
						    .ch-cond-tool-block .ch-cond-btn.primary:hover{ background:var(--navy-900); border-color:var(--navy-900); color:#fff; }
						
						    /* ---- Ergebnis (rechte Spalte) ---- */
						    .ch-cond-tool-block .ch-cond-results{
						      border-left:1px solid var(--border); padding-left:32px;
						    }
						    .ch-cond-tool-block .ch-cond-start-summary{
						      background:var(--blue-100); border-radius:12px; padding:12px 16px; margin:0 0 20px;
						    }
						    .ch-cond-tool-block .ch-cond-start-title{
						      font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em;
						      color:var(--blue-600); font-weight:700; margin:0 0 6px;
						    }
						    .ch-cond-tool-block .ch-cond-badges{
						      font-family:var(--mono); font-size:12px; color:var(--ink-700); line-height:1.7;
						      margin:0;
						    }
						    .ch-cond-tool-block .ch-cond-kpis{ display:flex; flex-direction:column; gap:14px; margin-bottom:16px; }
						    .ch-cond-tool-block .ch-cond-kpi{
						      border:1px solid var(--border); border-radius:14px; padding:16px 18px;
						    }
						    .ch-cond-tool-block .ch-cond-kpi.main{
						      background:var(--navy-900); border-color:var(--navy-900);
						    }
						    .ch-cond-tool-block .ch-cond-kpi-label{
						      font-family:var(--mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em;
						      color:var(--blue-600); font-weight:700; margin:0 0 6px;
						    }
						    .ch-cond-tool-block .ch-cond-kpi.main .ch-cond-kpi-label{ color:var(--cyan-400); }
						    .ch-cond-tool-block .ch-cond-kpi-val{
						      font-family:var(--mono); font-weight:800; color:var(--navy-900);
						      font-size:26px; line-height:1;
						    }
						    .ch-cond-tool-block .ch-cond-kpi.main .ch-cond-kpi-val{ color:#fff; font-size:30px; }
						    .ch-cond-tool-block .ch-cond-kpi-sub{ font-size:12.5px; color:var(--muted-600); margin-top:4px; }
						    .ch-cond-tool-block .ch-cond-kpi.main .ch-cond-kpi-sub{ color:rgba(255,255,255,.7); }
						    .ch-cond-tool-block .ch-cond-breakdown{
						      font-size:13px; color:var(--ink-700); line-height:1.6; margin:0 0 20px;
						      padding:12px 14px; background:var(--blue-100); border-radius:10px;
						    }
						    .ch-cond-tool-block .ch-cond-breakdown b{ color:var(--navy-900); font-family:var(--mono); }
						
						    /* ---- Stationen-Zeitleiste ---- */
						    .ch-cond-tool-block .ch-cond-steps{
						      margin-top:28px; padding-top:24px; border-top:1px solid var(--border);
						    }
						    .ch-cond-tool-block .ch-cond-steps-title{
						      font-size:13px; font-weight:700; color:var(--navy-900); margin:0 0 4px;
						      text-transform:uppercase; letter-spacing:.04em;
						    }
						    .ch-cond-tool-block .ch-cond-steps-sub{
						      font-size:13px; color:var(--muted-600); margin:0 0 16px;
						    }
						    .ch-cond-tool-block .ch-cond-timeline{
						      display:flex; flex-direction:column;
						    }
						    .ch-cond-tool-block .ch-cond-tstep{
						      display:grid; grid-template-columns:36px 1fr auto; gap:14px; align-items:start;
						      padding:12px 0; position:relative;
						    }
						    .ch-cond-tool-block .ch-cond-tstep::before{
						      content:''; position:absolute; left:17px; top:0; bottom:0; width:2px; background:var(--border);
						    }
						    .ch-cond-tool-block .ch-cond-tstep:first-child::before{ top:18px; }
						    .ch-cond-tool-block .ch-cond-tstep:last-child::before{ bottom:calc(100% - 18px); }
						    .ch-cond-tool-block .ch-cond-tnum{
						      position:relative; z-index:1;
						      width:36px; height:36px; border-radius:50%; background:#fff; border:2px solid var(--border);
						      display:flex; align-items:center; justify-content:center;
						      font-family:var(--mono); font-weight:800; font-size:14px; color:var(--navy-900);
						    }
						    .ch-cond-tool-block .ch-cond-tstep.hascond .ch-cond-tnum{ border-color:var(--blue-600); color:var(--blue-600); }
						    .ch-cond-tool-block .ch-cond-tstep.start{
						      background:var(--blue-100); border-radius:14px; padding:14px 16px; margin-bottom:6px;
						    }
						    .ch-cond-tool-block .ch-cond-tstep.start::before{ display:none; }
						    .ch-cond-tool-block .ch-cond-tstep.start .ch-cond-tnum{ background:var(--navy-900); border-color:var(--navy-900); color:#fff; }
						    .ch-cond-tool-block .ch-cond-tstep.start .ch-cond-tname{ color:var(--navy-900); }
						    .ch-cond-tool-block .ch-cond-tbody b.ch-cond-tname{ display:block; font-size:14.5px; color:var(--navy-900); font-weight:700; margin-bottom:2px; }
						    .ch-cond-tool-block .ch-cond-tmeta{
						      font-size:12.5px; color:var(--muted-600); display:flex; gap:10px; flex-wrap:wrap;
						    }
						    .ch-cond-tool-block .ch-cond-tmeta span{ white-space:nowrap; }
						    .ch-cond-tool-block .ch-cond-tmeta .ch-cond-start-tag{ color:var(--navy-900); font-weight:700; }
						    .ch-cond-tool-block .ch-cond-tfoot{
						      font-family:var(--mono); font-size:11.5px; color:var(--muted-600); margin-top:4px;
						    }
						    .ch-cond-tool-block .ch-cond-tchip{
						      font-family:var(--mono); font-weight:800; font-size:14px; white-space:nowrap;
						      padding:6px 12px; border-radius:999px; align-self:center;
						    }
						    .ch-cond-tool-block .ch-cond-tchip.on{ background:var(--blue-100); color:var(--blue-600); }
						    .ch-cond-tool-block .ch-cond-tchip.off{ background:transparent; color:var(--muted-600); font-weight:600; font-size:12.5px; }
						    .ch-cond-tool-block .ch-cond-tchip.ads{ background:var(--amber-100); color:var(--amber-700); font-size:12px; text-align:right; }
						
						    /* ---- Praxis-Hinweise / Recht ---- */
						    .ch-cond-tool-block .ch-cond-info-row{
						      display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:28px; padding-top:24px;
						      border-top:1px solid var(--border);
						    }
						    .ch-cond-tool-block .ch-cond-info-box{
						      background:var(--blue-100); border-radius:14px; padding:18px 20px;
						    }
						    .ch-cond-tool-block .ch-cond-info-box h3{
						      font-size:14.5px; font-weight:800; color:var(--navy-900); margin:0 0 10px;
						    }
						    .ch-cond-tool-block .ch-cond-info-box p{ font-size:13.5px; color:var(--ink-700); line-height:1.65; margin:0 0 8px; }
						    .ch-cond-tool-block .ch-cond-info-box p:last-child{ margin-bottom:0; }
						    .ch-cond-tool-block .ch-cond-info-box ul{ margin:0; padding-left:18px; }
						    .ch-cond-tool-block .ch-cond-info-box li{ font-size:13.5px; color:var(--ink-700); line-height:1.6; margin-bottom:6px; }
						    .ch-cond-tool-block .ch-cond-info-box li:last-child{ margin-bottom:0; }
						
						    @media (max-width:900px){
						      .ch-cond-tool-block .ch-cond-grid{ grid-template-columns:1fr; }
						      .ch-cond-tool-block .ch-cond-results{
						        border-left:none; border-top:1px solid var(--border); padding-left:0; padding-top:24px; margin-top:6px;
						      }
						      .ch-cond-tool-block .ch-cond-info-row{ grid-template-columns:1fr; }
						    }
						    @media (max-width:560px){
						      .ch-cond-tool-block{ padding:36px 16px; }
						      .ch-cond-tool-block .ch-cond-card{ padding:20px; }
						      .ch-cond-tool-block .ch-cond-row2{ grid-template-columns:1fr; }
						      .ch-cond-tool-block .ch-cond-tstep{ grid-template-columns:30px 1fr; }
						      .ch-cond-tool-block .ch-cond-tchip{ grid-column:1 / -1; justify-self:start; margin-left:44px; }
						    }
.fb .ch-cond-tool-block{margin:22px 0 10px;padding:34px 24px}
.fb .ch-cond-tool-block h2{border-top:0;padding-top:0;margin-top:0}
@media (max-width:560px){.fb .ch-cond-tool-block{padding:24px 12px}}
.fb .fb-sel{width:100%;padding:10px 12px;border:1px solid #c9d6e8;border-radius:10px;font-size:16px;font-family:inherit;background:#fff}
.fb .fb-vecheck{display:flex;flex-direction:column;gap:10px}
.fb .fb-vecheck label{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;line-height:1.5;cursor:pointer}
.fb .fb-vecheck input{width:20px;height:20px;margin-top:2px;flex:none}
#fbQaAssistent .fb-calc-in{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
#fbQaAssistent #fbQaInfo{font-size:14px;line-height:1.6;background:#f3f7fc;border-radius:10px;padding:10px 14px}

/* Wasserdampftabelle (4.1) */
.fb .fb-wdt-wrap{margin:10px 0 6px;border:1px solid #dbe5f1;border-radius:12px;padding:10px 14px;background:#fff}
.fb .fb-wdt-wrap summary{cursor:pointer;font-weight:700;color:var(--navy)}
.fb .fb-wdt{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:12px}
.fb .fb-wdt table{width:100%;border-collapse:collapse;font-size:13.5px}
.fb .fb-wdt th{font-size:12px;padding:6px 8px}
.fb .fb-wdt td{padding:3px 8px;border-bottom:1px solid #eef2f7}
.fb .fb-wdt td.v{font-size:13.5px}
@media (max-width:900px){.fb .fb-wdt{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.fb .fb-wdt{grid-template-columns:1fr}}
/* lange Texte in Wertespalten duerfen umbrechen (Roland 18.10.) */
.fb .fb-tablewrap td.v{white-space:normal}
@media print{.fb .fb-wdt-wrap:not([open]) .fb-wdt{display:grid}}