:root{
  --paper:#F3F6F7; --panel:#FFFFFF; --ink:#14212B; --ink-2:#4A5A66; --line:#D5DEE3;
  --blue:#1E5AA8; --blue-soft:#E3ECF7; --magenta:#A3195B; --magenta-soft:#F6E4EC;
  --amber:#C98A00; --amber-soft:#FBF0D6; --green:#2B7A4B; --green-soft:#E1F1E7; --red:#B3261E; --red-soft:#F8E1DF;
  --hatch:#E8EDF0;
  --display:"Barlow Condensed","Noto Sans TC",system-ui,sans-serif;
  --body:"Barlow","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0F1A21; --panel:#16242D; --ink:#E6EDF1; --ink-2:#9DB0BC; --line:#2A3A45;
    --blue:#6FA3E6; --blue-soft:#1C3350; --magenta:#E06A9C; --magenta-soft:#3A1C2B;
    --amber:#E8B23A; --amber-soft:#3A2F12; --green:#5CC28A; --green-soft:#16342A; --red:#F07A70; --red-soft:#3E1D1B;
    --hatch:#1D2B34; color-scheme:dark;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased}
a{color:var(--blue)}
img,svg,canvas{max-width:100%}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:.005em;line-height:1.05;margin:0}
h1{font-size:clamp(44px,6.4vw,78px)}
h2{font-size:clamp(32px,4vw,48px)}
h3{font-size:24px;line-height:1.15}
p{margin:0}
.lede{font-size:19px;color:var(--ink-2);max-width:34em}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 16px/1 var(--body);padding:14px 20px;border-radius:8px;border:1.5px solid var(--ink);color:var(--ink);background:transparent;text-decoration:none;cursor:pointer;transition:background .15s,color .15s}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{filter:brightness(1.08);background:var(--blue);color:#fff}
.btn.quiet{border-color:transparent;padding-left:4px;padding-right:4px;text-decoration:underline;text-underline-offset:4px}
.btn.quiet:hover{background:transparent;color:var(--blue)}

/* header */
header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:700 22px/1 var(--display);letter-spacing:.01em}
nav.main{display:flex;gap:4px;margin-left:12px}
nav.main a{color:var(--ink-2);text-decoration:none;padding:8px 10px;border-radius:6px;font-weight:500;font-size:15px}
nav.main a:hover{color:var(--ink);background:var(--hatch)}
.bar .spacer{flex:1}
.lang{font:500 14px var(--body);background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:7px 8px}
.bar .btn{padding:10px 16px;font-size:15px}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;color:var(--ink);font:500 15px var(--body)}
@media (max-width:1020px){nav.main{display:none}nav.main.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--panel);border-bottom:1px solid var(--line);padding:12px 24px}.menu-btn{display:block}}
@media (max-width:560px){.bar .btn{display:none}}

/* hero */
.hero{padding:64px 0 72px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:48px;align-items:center}
.hero h1{margin-bottom:22px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 14px}
.status-note{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-2)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--green);flex:none}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}}

/* dispatch board */
.board{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 18px 14px;box-shadow:0 1px 0 var(--line),0 18px 40px -28px rgba(20,33,43,.45)}
.board-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:12px}
.board-head h3{font-size:22px}
.board-head span{font-size:14px;color:var(--ink-2)}
.times{display:grid;grid-template-columns:96px 1fr;font-size:12px;color:var(--ink-2);margin-bottom:4px}
.ticks{position:relative;height:16px}
.ticks span{position:absolute;transform:translateX(-50%)}
.row{display:grid;grid-template-columns:96px 1fr;align-items:center;border-top:1px solid var(--line);min-height:54px}
.row .tail{font:600 15px/1.2 var(--display);letter-spacing:.02em}
.row .tail small{display:block;font:400 12px var(--body);color:var(--ink-2);letter-spacing:0}
.lane{position:relative;height:54px;background-image:repeating-linear-gradient(90deg,transparent 0,transparent calc(100%/12 - 1px),var(--line) calc(100%/12 - 1px),var(--line) calc(100%/12))}
.lane.locked{background:repeating-linear-gradient(135deg,var(--hatch) 0 8px,transparent 8px 16px)}
.lane.locked::after{content:attr(data-label);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:var(--red)}
.bk{position:absolute;top:8px;bottom:8px;border-radius:7px;padding:4px 8px;font-size:12px;line-height:1.25;cursor:grab;touch-action:none;user-select:none;overflow:hidden;background:var(--blue-soft);color:var(--ink);border-left:4px solid var(--blue);transition:left .25s ease,top .25s ease,box-shadow .15s}
.bk b{font-weight:600;display:block;white-space:nowrap}
.bk span{color:var(--ink-2);white-space:nowrap}
.bk.solo{background:var(--magenta-soft);border-left-color:var(--magenta)}
.bk.drag{cursor:grabbing;transition:none;box-shadow:0 10px 24px -8px rgba(20,33,43,.45);z-index:5}
.bk.bad{background:var(--red-soft);border-left-color:var(--red)}
.board-msg{margin-top:12px;min-height:24px;font-size:15px;display:flex;gap:8px;align-items:center}
.board-msg.ok{color:var(--green)} .board-msg.err{color:var(--red)}
.board-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-2);margin-top:6px}
.board-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
@media (prefers-reduced-motion:no-preference){.bk.enter{animation:taxi .7s cubic-bezier(.2,.7,.2,1) both}}
@keyframes taxi{from{opacity:0;transform:translateX(-24px)}to{opacity:1;transform:none}}

/* sections */
section{padding:88px 0}
.sec-head{max-width:640px;margin-bottom:40px}
.sec-head h2{margin-bottom:14px}
.alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* roles */
.roles{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}
.role-tabs{display:flex;flex-direction:column;border-left:2px solid var(--line)}
.role-tabs button{all:unset;cursor:pointer;padding:14px 18px;margin-left:-2px;border-left:2px solid transparent;font:600 22px/1.1 var(--display);color:var(--ink-2)}
.role-tabs button[aria-selected="true"]{color:var(--ink);border-left-color:var(--magenta)}
.role-tabs button:focus-visible{outline:2px solid var(--blue)}
.role-panel h3{font-size:34px;margin-bottom:22px;max-width:18em}
.role-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.role-panel li{display:flex;gap:14px;align-items:flex-start;font-size:18px}
.role-panel li svg{flex:none;margin-top:3px;color:var(--blue)}
@media (max-width:760px){.roles{grid-template-columns:1fr}.role-tabs{flex-direction:row;border-left:none;border-bottom:2px solid var(--line);overflow-x:auto}.role-tabs button{margin:0 0 -2px;border-left:none;border-bottom:2px solid transparent;font-size:19px}.role-tabs button[aria-selected="true"]{border-bottom-color:var(--magenta)}}

/* try it */
.try{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}
.paper .panel{background:var(--panel)}
.panel h3{margin-bottom:6px}
.panel > p{color:var(--ink-2);margin-bottom:18px;font-size:16px}
.mx{display:grid;gap:10px}
.mx-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:12px 14px;border-radius:9px;background:var(--paper)}
.mx-row .name{font-weight:600}
.mx-row .due{font-size:13px;color:var(--ink-2)}
.light{display:inline-flex;align-items:center;gap:8px;font:600 15px var(--body);padding:5px 11px;border-radius:999px}
.light::before{content:"";width:10px;height:10px;border-radius:50%;background:currentColor}
.light.g{background:var(--green-soft);color:var(--green)} .light.y{background:var(--amber-soft);color:var(--amber)} .light.r{background:var(--red-soft);color:var(--red)}
.slider{margin:18px 0 8px}
.slider label{display:flex;justify-content:space-between;font-size:15px;margin-bottom:8px}
input[type=range]{width:100%;accent-color:var(--blue)}
.lockbar{margin-top:12px;padding:12px 14px;border-radius:9px;font-weight:600;font-size:15px}
.lockbar.on{background:var(--red-soft);color:var(--red)} .lockbar.off{background:var(--green-soft);color:var(--green)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fields label{font-size:14px;color:var(--ink-2);display:block;margin-bottom:5px}
.fields input,.fields select{width:100%;font:500 17px var(--body);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
.calc{margin-top:16px;border-top:1px solid var(--line)}
.calc div{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:16px}
.calc div.total{font-weight:600;font-size:18px}
.warn{margin-top:10px;color:var(--amber);font-size:15px;min-height:22px}
@media (max-width:900px){.try{grid-template-columns:1fr}}

/* 3d */
.viewer{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center}
.stage{position:relative;height:380px;border-radius:14px;background:radial-gradient(120% 90% at 50% 100%,var(--blue-soft),var(--panel) 70%);border:1px solid var(--line);overflow:hidden}
.stage canvas{display:block;cursor:grab;touch-action:none}
.stage .hint{position:absolute;left:14px;bottom:12px;font-size:13px;color:var(--ink-2)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;padding:3px;background:var(--panel);margin:18px 0}
.seg button{all:unset;cursor:pointer;padding:8px 14px;border-radius:7px;font:600 15px var(--body);color:var(--ink-2)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.spec{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:16px;margin-top:6px}
.spec dt{color:var(--ink-2)} .spec dd{margin:0;font-weight:600}
@media (max-width:900px){.viewer{grid-template-columns:1fr}.stage{height:300px}}

/* pricing */
.price-top{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--panel)}
.plan{padding:28px 26px;border-right:1px solid var(--line)}
.plan:last-child{border-right:none}
.plan.mid{background:var(--blue-soft)}
.plan h3{font-size:28px}
.plan .fleet{color:var(--ink-2);margin:4px 0 18px}
.plan .amt{font:600 52px/1 var(--display)}
.plan .per{color:var(--ink-2);font-size:15px;margin-top:6px;min-height:24px}
.incl{margin-top:22px;display:grid;grid-template-columns:auto 1fr;gap:10px 14px;align-items:start;font-size:16px}
.incl svg{color:var(--green);margin-top:3px}
.transparent{margin-top:28px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;font-size:16px}
.transparent b{display:block;font:600 20px/1.2 var(--display);margin-bottom:4px}
@media (max-width:860px){.plans{grid-template-columns:1fr}.plan{border-right:none;border-bottom:1px solid var(--line)}.transparent{grid-template-columns:1fr 1fr}}

/* faq */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font:600 21px/1.3 var(--display);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:16px;font:400 28px var(--body);color:var(--ink-2)}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 22px;color:var(--ink-2);max-width:40em}

/* final cta */
.final{background:var(--ink);color:var(--paper);padding:84px 0}
.final h2{max-width:14em;margin-bottom:16px}
.final p{color:color-mix(in srgb,var(--paper) 75%,transparent);max-width:36em}
.final .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.final .btn{border-color:var(--paper);color:var(--paper)}
.final .btn:hover{background:var(--paper);color:var(--ink)}
.final .btn.primary{background:var(--paper);color:var(--ink);border-color:var(--paper)}
@media (prefers-color-scheme:dark){.final{background:#081016}}

/* footer */
footer{padding:48px 0 40px;font-size:15px;color:var(--ink-2)}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot h4{font:600 16px var(--body);color:var(--ink);margin:0 0 10px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot a{color:var(--ink-2);text-decoration:none}
.foot a:hover{color:var(--ink);text-decoration:underline}
.legal-line{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
@media (max-width:760px){.foot{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* ---------- shared additions for inner pages ---------- */
nav.main a.active{color:var(--ink);background:var(--hatch)}
.page-hero{padding:72px 0 48px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(40px,5.4vw,66px);max-width:15em;margin-bottom:18px}
.feat{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;padding:64px 0;border-top:1px solid var(--line)}
.feat:first-child{border-top:none}
.feat.flip .feat-vis{order:-1}
.feat h2{font-size:clamp(28px,3.2vw,40px);margin-bottom:14px}
.feat p.lede{margin-bottom:20px}
.ticks-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.ticks-list li{display:flex;gap:12px;align-items:flex-start}
.ticks-list li svg{flex:none;margin-top:4px;color:var(--blue)}
.mock{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.mock-title{font:600 15px var(--body);color:var(--ink-2);margin-bottom:10px}
.mock-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 12px;border-radius:8px;background:var(--paper);margin-top:8px;font-size:15px}
.mock-row b{font-weight:600}
.pill{font:600 13px var(--body);padding:4px 10px;border-radius:999px;white-space:nowrap}
.pill.g{background:var(--green-soft);color:var(--green)}.pill.y{background:var(--amber-soft);color:var(--amber)}.pill.r{background:var(--red-soft);color:var(--red)}.pill.b{background:var(--blue-soft);color:var(--blue)}.pill.m{background:var(--magenta-soft);color:var(--magenta)}
@media (max-width:860px){.feat{grid-template-columns:1fr;gap:28px}.feat.flip .feat-vis{order:0}}
.sol{display:grid;grid-template-columns:300px 1fr;gap:48px;padding:48px 0;border-top:1px solid var(--line)}
.sol:first-child{border-top:none}
.sol h2{font-size:clamp(28px,3vw,38px)}
.sol .problem{color:var(--ink-2);font-size:18px;margin-bottom:18px;max-width:36em}
.sol .plan-tag{display:inline-block;margin-top:14px}
@media (max-width:820px){.sol{grid-template-columns:1fr;gap:16px}}
.calcbox{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px;margin-top:40px}
.calcbox .big{font:600 56px/1 var(--display)}
.calcbox .muted{color:var(--ink-2)}
@media (max-width:820px){.calcbox{grid-template-columns:1fr}}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
table.cmp{width:100%;border-collapse:collapse;min-width:560px;font-size:16px}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.cmp thead th{font:600 18px var(--display);background:var(--paper)}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp td:nth-child(2){font-weight:600;color:var(--green)}
.note{font-size:14px;color:var(--ink-2);margin-top:12px;max-width:52em}
.incl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 28px;margin-top:8px}
.incl-grid div{display:flex;gap:10px;align-items:flex-start}
.incl-grid svg{flex:none;margin-top:4px;color:var(--green)}
@media (max-width:760px){.incl-grid{grid-template-columns:1fr 1fr}}
.sec-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px}
.sec-item{padding:28px 0;border-top:1px solid var(--line)}
.sec-item h3{margin-bottom:8px}
.sec-item p{color:var(--ink-2)}
@media (max-width:760px){.sec-list{grid-template-columns:1fr}}
.story{max-width:720px}
.story p{font-size:19px;margin-bottom:20px}
.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:16px}
.principles b{display:block;font:600 22px/1.2 var(--display);margin-bottom:6px}
.principles p{color:var(--ink-2)}
@media (max-width:760px){.principles{grid-template-columns:1fr}}
.faq-group{margin-bottom:48px}
.faq-group h2{font-size:30px;margin-bottom:6px}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:48px;align-items:start}
@media (max-width:860px){.two{grid-template-columns:1fr}}
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}
.form .full{grid-column:1/-1}
.form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;font:400 16px var(--body);padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
.form textarea{min-height:110px;resize:vertical}
.form .check{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.form .check input{width:auto;margin-top:4px}
.form .req{color:var(--magenta)}
.form-msg{grid-column:1/-1;font-size:15px;min-height:22px}
.form-msg.ok{color:var(--green)}.form-msg.err{color:var(--red)}
@media (max-width:620px){.form{grid-template-columns:1fr}}
.contact-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:16px}
.contact-card h3{margin-bottom:6px}
.contact-card a{font-size:20px;font-weight:600}
ol.next{list-style:none;counter-reset:n;margin:0;padding:0;display:grid;gap:18px}
ol.next li{counter-increment:n;display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:start}
ol.next li::before{content:counter(n);width:32px;height:32px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font:600 17px/32px var(--display);text-align:center}
.prose{max-width:760px}
.prose .updated{color:var(--ink-2);margin-bottom:32px}
.prose h2{font-size:28px;margin:40px 0 12px}
.prose p,.prose li{color:var(--ink);margin-bottom:12px}
.prose ul{padding-left:22px;margin:0 0 12px}
.prose .lang-note{background:var(--blue-soft);border-radius:10px;padding:14px 16px;font-size:15px;margin-bottom:28px}
.toc{display:flex;flex-wrap:wrap;gap:8px 16px;margin-bottom:24px;font-size:15px}
.prose h1{font-size:clamp(36px,4.6vw,56px);margin-bottom:10px}
[aria-invalid="true"]{border-color:var(--red)!important}