:root{
  --teal:#006f7d;--teal-dark:#07505a;--blue:#087fa5;--green:#258f86;
  --ink:#19343a;--text:#314a50;--muted:#667b80;--paper:#fff;--canvas:#f3f5f3;
  --line:#cbd7d6;--line-dark:#9fb3b3;--orange:#a85a16;--red:#9f3439;
  --focus:#f5a623;--content:940px;--reading:760px;
  font-family:"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);background:var(--canvas)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;line-height:1.78;background:var(--canvas);color:var(--text)}
a{color:var(--teal-dark);text-underline-offset:.22em;text-decoration-thickness:1px}a:hover{color:#002f35}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.skip{position:fixed;left:1rem;top:-5rem;z-index:50;background:var(--paper);padding:.7rem 1rem;border:2px solid var(--ink)}.skip:focus{top:1rem}
.layout{display:grid;grid-template-columns:258px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:2.4rem 1.5rem;background:var(--teal-dark);color:#fff;overflow:auto}
.brand{display:block;color:#fff;text-decoration:none;padding:0 0 1.8rem;border-bottom:1px solid rgba(255,255,255,.28)}.brand span{display:block;font-size:.82rem;letter-spacing:.16em;margin-bottom:.55rem}.brand strong{display:block;font-size:1.55rem;line-height:1.35;font-weight:700}.sidebar-note{color:#d7eaeb;font-size:.86rem;margin:1rem 0 2rem}.nav-label{font-size:.72rem;letter-spacing:.16em;color:#a9d3d6;margin:0 0 .55rem;text-transform:uppercase}
.nav-link{display:grid;grid-template-columns:2rem 1fr;gap:.65rem;align-items:start;padding:.75rem 0;border-top:1px solid rgba(255,255,255,.13);text-decoration:none;color:#dceced;font-size:.9rem;line-height:1.45}.nav-link span{color:#92cbd0;font-variant-numeric:tabular-nums;font-size:.76rem;padding-top:.12rem}.nav-link:hover{color:#fff}.nav-link.active{color:#fff;font-weight:750;border-top-color:#fff}.nav-link.active span{color:#fff}.download-shortcut{display:block;margin-top:1.6rem;padding:.75rem 0;border-top:1px solid #fff;border-bottom:1px solid #fff;color:#fff;text-align:left;text-decoration:none;font-weight:750}.download-shortcut::after{content:"  ↓"}
.content{width:min(100%,var(--content));padding:4.5rem clamp(1.5rem,5vw,5rem);margin:0 auto;overflow:hidden}.page-head{margin-bottom:3.5rem}.eyebrow{letter-spacing:.13em;color:var(--teal);font-weight:750;font-size:.8rem;margin:0}.page-head h1{font-size:clamp(2.25rem,4.5vw,4rem);font-weight:650;letter-spacing:-.045em;line-height:1.08;margin:.65rem 0 1.5rem;max-width:18ch;color:var(--ink);overflow-wrap:normal}.head-rule{display:block;width:5rem;border-top:5px solid var(--teal)}
.content>section,.content>.next,.content>footer{max-width:var(--reading)}.content>.table-wrap,.content>.do,.content>.hero,.content>.lesson-visual,.content>.section:has(.table-wrap),.content>.section:has(.card-grid),.content>.section:has(.survey-grid),.content>.section:has(.bar-chart),.content>.section:has(.inventory-flow){max-width:none}
.lesson-visual{margin:0 0 3.75rem;background:var(--paper);border:1px solid var(--line);box-shadow:0 18px 42px rgba(25,52,58,.09);overflow:hidden}.lesson-visual img{display:block;width:100%;height:auto;max-height:none;object-fit:contain;background:#eef3f2}.lesson-visual figcaption{padding:1rem 1.2rem;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem;line-height:1.65}.hero-visual{margin-top:-1rem;border-top:6px solid var(--teal)}.concept-visual{margin:2.6rem 0 4.6rem;border-top:5px solid var(--green)}
.hero{background:var(--paper);border-top:6px solid var(--teal);border-bottom:1px solid var(--line);padding:2.5rem 0}.hero h2{font-size:clamp(1.8rem,3.4vw,3rem);letter-spacing:-.025em;line-height:1.25;max-width:19ch;margin:.7rem 0}.lead{font-size:1.14rem;color:#3d565b;max-width:65ch}
.section{margin:4.5rem 0}.section h2,.do h2{font-size:1.75rem;line-height:1.35;color:var(--ink);margin:0 0 1.25rem;padding-top:1.1rem;border-top:2px solid var(--ink)}.section h3,.do h3{font-size:1.15rem;color:var(--ink);margin:2.1rem 0 .65rem}
.why{border-top:5px solid var(--teal);background:#e8f2f1;padding:1.55rem 1.7rem}.why h2{font-size:1.55rem;line-height:1.35;margin:0 0 .6rem}.why p:last-child{margin-bottom:0}
.metric-row,.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:1.5rem 0;border-top:1px solid var(--line);border-left:1px solid var(--line)}.metric,.card,.download-card{background:var(--paper);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.45rem}.metric strong{font-size:2.35rem;color:var(--teal);display:block;line-height:1}.card h3,.download-card h3{margin:.35rem 0 .65rem;font-size:1.2rem}.task-card{border-top:4px solid var(--teal)}.task-card:nth-child(2){border-top-color:var(--blue)}.task-card:nth-child(3){border-top-color:var(--green)}
.button,.download-card a{display:inline-flex;align-items:center;gap:.5rem;background:var(--teal-dark);color:#fff!important;text-decoration:none;font-weight:750;padding:.72rem 1rem;border:0}.button:hover,.download-card a:hover{background:#002f35}.download-card a{margin:.2rem .2rem .2rem 0}.download-card p{color:var(--muted)}
.public-entry{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:2rem;align-items:center;max-width:none!important;margin:2.2rem 0 4.5rem;padding:1.7rem;background:var(--paper);border:1px solid var(--line-dark);border-top:6px solid var(--blue)}.public-entry h2{margin:.2rem 0 .7rem;font-size:1.5rem;color:var(--ink)}.public-entry p{margin:.5rem 0}.public-url{overflow-wrap:anywhere;font-size:.9rem}.qr-trigger{width:100%;padding:.7rem;border:1px solid var(--line-dark);background:#fff;color:var(--teal-dark);cursor:zoom-in;font:inherit;font-weight:750}.qr-trigger:hover{border-color:var(--teal);background:#f6fbfb}.qr-trigger img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain;background:#fff}.qr-trigger span{display:block;padding:.55rem .25rem .15rem}.qr-dialog{max-width:min(92vw,720px);padding:0;border:0;background:transparent}.qr-dialog::backdrop{background:rgba(5,34,39,.78)}.qr-dialog-card{position:relative;background:#fff;padding:clamp(1rem,3vw,2rem);border-top:8px solid var(--teal);box-shadow:0 24px 70px rgba(0,0,0,.3);text-align:center}.qr-dialog-card h2{margin:.2rem 2.5rem .5rem;color:var(--ink)}.qr-dialog-card img{display:block;width:min(72vw,560px);height:auto;margin:1rem auto;background:#fff}.qr-close{position:absolute;right:.75rem;top:.75rem;width:2.6rem;height:2.6rem;border:1px solid var(--ink);background:#fff;color:var(--ink);font-size:1.5rem;line-height:1;cursor:pointer}.qr-close:hover{background:var(--ink);color:#fff}
.do{background:var(--paper);border:1px solid var(--line-dark);padding:clamp(1.25rem,3vw,2.2rem)}.check,.warning,.stop{padding:1.2rem 1.35rem;margin:2rem 0;border-left:6px solid}.check{background:#edf5ef;border-color:var(--green)}.warning{background:#fff4e7;border-color:var(--orange)}.stop{background:#faecec;border-color:var(--red)}.check strong,.warning strong,.stop strong{display:block;color:var(--ink);font-size:1.05rem;margin-bottom:.35rem}
.steps{counter-reset:step;list-style:none;padding:0;border-top:1px solid var(--line);margin:1.5rem 0}.steps li{counter-increment:step;display:grid;grid-template-columns:3rem 1fr;gap:1rem;margin:0;padding:1.05rem 0;border-bottom:1px solid var(--line)}.steps li::before{content:"0" counter(step);color:var(--teal);font-weight:800;font-variant-numeric:tabular-nums}
.prompt{border:1px solid var(--ink);background:var(--paper);margin:1.6rem 0}.prompt-head{display:flex;align-items:center;justify-content:space-between;background:var(--ink);color:#fff;padding:.8rem 1rem}.prompt-head h3{margin:0;color:#fff;font-size:.98rem}.copy{border:1px solid rgba(255,255,255,.75);background:transparent;color:#fff;padding:.42rem .68rem;font-weight:750;cursor:pointer}.prompt pre{white-space:pre-wrap;margin:0;padding:1.25rem;overflow:auto;font:inherit;line-height:1.72;background:#f8f8f5}
.table-wrap{overflow:auto;border-top:2px solid var(--ink);background:var(--paper)}table{border-collapse:collapse;width:100%;min-width:680px}th,td{text-align:left;padding:.9rem .85rem;border-bottom:1px solid var(--line);vertical-align:top}th{background:#e7efee;color:var(--teal-dark);font-size:.88rem;letter-spacing:.03em}tbody tr:hover{background:#f7f9f7}
.flow{width:100%;height:auto;background:var(--paper);border-top:2px solid var(--ink);border-bottom:1px solid var(--line);padding:1rem 0}.control-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--ink);border-left:1px solid var(--line);margin:1.5rem 0}.control-grid article{background:var(--paper);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.2rem}.control-grid b{display:block;color:var(--teal);font-size:.78rem;letter-spacing:.1em;margin-bottom:.55rem}.control-grid strong{display:block;color:var(--ink);font-size:1.06rem;margin-bottom:.35rem}.control-grid span{font-size:.91rem;color:var(--muted)}
.inventory-flow{display:grid;grid-template-columns:repeat(5,1fr);margin:1.5rem 0;border-top:2px solid var(--ink);border-left:1px solid var(--line)}.inventory-flow div{background:var(--paper);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.1rem}.inventory-flow b{display:block;color:var(--teal);margin-bottom:.45rem}.inventory-flow span{display:block;font-size:.9rem;color:var(--muted);line-height:1.6}
.survey-grid{display:grid;grid-template-columns:repeat(4,1fr);margin:1.5rem 0;border-top:2px solid var(--ink);border-left:1px solid var(--line)}.signal{background:var(--paper);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.2rem}.signal strong{display:block;font-size:2.45rem;line-height:1;color:var(--teal)}.signal span{display:block;margin-top:.75rem;font-weight:700;font-size:.94rem;line-height:1.55}.sample-note{font-size:.9rem;color:var(--muted);border-left:3px solid var(--line-dark);padding-left:.8rem}.bar-chart{background:var(--paper);border-top:2px solid var(--ink);padding:1.35rem 0}.bar-row{display:grid;grid-template-columns:minmax(10rem,1.3fr) 3fr 2.5rem;gap:.9rem;align-items:center;margin:.85rem 0}.bar-track{height:.72rem;background:#dce6e5;overflow:hidden}.bar-fill{height:100%;width:var(--value);background:var(--teal)}.bar-row strong{text-align:right;color:var(--teal)}
.next{margin:4rem 0;text-align:right}footer{border-top:1px solid var(--line-dark);margin-top:5rem;padding-top:1rem;color:var(--muted);font-size:.85rem}.mobile-header{display:none}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}.two-col>*{background:var(--paper);padding:1.2rem}.tag{display:inline-block;color:var(--teal-dark);border-bottom:2px solid var(--teal);padding:.1rem 0;font-weight:800;font-size:.78rem;letter-spacing:.06em}
@media(max-width:1020px){.control-grid,.survey-grid{grid-template-columns:repeat(2,1fr)}.inventory-flow{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){.layout{display:block}.sidebar{position:fixed;z-index:20;inset:60px 0 auto 0;height:calc(100vh - 60px);transform:translateY(-120%);transition:.2s;padding:1.2rem 1.4rem}.sidebar.open{transform:none}.brand,.sidebar-note,.nav-label{display:none}.mobile-header{position:sticky;top:0;z-index:21;height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 1rem;background:var(--teal-dark);color:#fff}.wordmark{color:#fff;text-decoration:none;font-weight:750;font-size:.9rem}.menu{border:1px solid #fff;background:transparent;color:#fff;padding:.45rem .7rem}.content{padding:2.4rem 1.1rem;overflow:visible}.page-head{margin-bottom:2.4rem}.page-head h1{font-size:clamp(2.1rem,11vw,3.2rem);max-width:11ch}.lesson-visual{margin-bottom:2.8rem;box-shadow:0 10px 26px rgba(25,52,58,.08)}.hero-visual{margin-top:-.4rem}.concept-visual{margin-top:2rem;margin-bottom:3.4rem}.lesson-visual figcaption{padding:.85rem 1rem;font-size:.87rem}.metric-row,.card-grid,.two-col,.survey-grid,.inventory-flow,.control-grid,.public-entry{grid-template-columns:1fr}.public-entry{padding:1.2rem}.qr-trigger{max-width:240px;margin:0 auto}.bar-row{grid-template-columns:1fr 2.5rem}.bar-row>span:first-child{grid-column:1/-1}.section{margin:3.4rem 0}.do{padding:1.1rem}.hero{padding:1.8rem 0}.table-wrap{margin-right:-1.1rem}.nav-link{padding:.7rem 0}}
@media print{.sidebar,.mobile-header,.copy,.next,.qr-dialog{display:none!important}.layout{display:block}.content{max-width:none;padding:0;overflow:visible}.content>section,.content>footer{max-width:none}.hero,.card,.prompt,.lesson-visual,.public-entry{break-inside:avoid}.lesson-visual{box-shadow:none;margin:1rem 0 1.5rem}.lesson-visual figcaption{font-size:8.5pt;padding:.55rem .7rem}a{color:#000;text-decoration:none}body{background:#fff}.page-head h1{font-size:2.4rem}.control-grid,.inventory-flow,.survey-grid{break-inside:avoid}}