/* WiSPEC 網站樣式（2026/10 改版）
   色彩取自實景：吸波材藍、暗室青、OTA 環的訊號橘。字型只用 Archivo：標題用加寬（wdth 112–125），內文用標準寬。 */
/* Archivo（SIL OFL，自架，不依賴 Google Fonts） */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url(/assets/fonts/archivo-latin-ext-wdth-normal.woff2) format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url(/assets/fonts/archivo-latin-wdth-normal.woff2) format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
:root{
  --ink:#13202A; --ink-2:#3E4F5C; --ink-3:#6B7C88;
  --paper:#F3F6F8; --white:#FFFFFF; --rule:#D3DCE2;
  --blue:#1D5F94; --blue-d:#164B76; --cyan:#5BB6E2; --signal:#EE7623; --signal-d:#C95F15;
  --wrap:1240px; --gut:clamp(16px,4vw,40px);
  --f:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--f);font-variation-settings:"wdth" 100;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--signal);outline-offset:2px}
h1,h2,h3{font-stretch:118%;font-variation-settings:"wdth" 118;line-height:1.12;margin:0;letter-spacing:-.01em;font-weight:700}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);font-weight:760}
h2{font-size:clamp(1.5rem,2.6vw,2.05rem)}
h3{font-size:1.1rem;font-weight:650;font-stretch:108%;font-variation-settings:"wdth" 108;letter-spacing:0}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:99}
.skip:focus{left:8px}
.lede{font-size:clamp(1.05rem,1.4vw,1.22rem);color:var(--ink-2);max-width:38em;line-height:1.55}
.crumb{font-size:.9rem;color:var(--ink-3);margin-bottom:1.2rem}
.crumb a{color:inherit}

/* 按鈕 */
.btn{display:inline-block;background:var(--signal);color:#fff;text-decoration:none;font-weight:650;padding:.8em 1.35em;border-radius:3px;border:2px solid var(--signal);font-size:1rem;line-height:1.2;cursor:pointer;font-family:inherit;transition:background .15s,border-color .15s}
.btn:hover{background:var(--signal-d);border-color:var(--signal-d);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-light{background:#fff;border-color:#fff;color:var(--ink)}
.btn-light:hover{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.8rem}

/* 頁首 */
.top{position:sticky;top:0;z-index:50;background:rgba(243,246,248,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.scrolled{border-bottom-color:var(--rule)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo img{height:34px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav>a,.dd>button{font:inherit;font-size:.98rem;font-weight:550;color:var(--ink);background:none;border:0;padding:10px 14px;text-decoration:none;cursor:pointer;border-radius:3px}
.nav>a:hover,.dd>button:hover{background:rgba(29,95,148,.08);color:var(--ink)}
.nav .on{color:var(--blue)}
.dd>button::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);margin-left:8px}
.dd{position:relative}
.dd-menu{position:absolute;left:0;top:calc(100% + 6px);min-width:270px;background:#fff;border:1px solid var(--rule);border-radius:4px;padding:6px;box-shadow:0 18px 40px -18px rgba(19,32,42,.35);display:none}
.dd.open .dd-menu{display:block}
@media (hover:hover) and (min-width:900px){.dd:hover .dd-menu{display:block}.dd:hover::after{content:"";position:absolute;left:0;right:0;top:100%;height:8px}}
.dd-menu a{display:block;padding:9px 12px;color:var(--ink);text-decoration:none;border-radius:3px;font-size:.96rem}
.dd-menu a:hover{background:var(--paper)}
.dd-menu a.on{color:var(--blue);font-weight:600}
.nav .nav-cta{background:var(--ink);color:#fff;margin-left:8px;padding:10px 18px}
.nav .nav-cta:hover,.nav .nav-cta.on{background:var(--blue);color:#fff}
.mob-btn{display:none}
@media (max-width:899px){
  .mob-btn{display:flex;flex-direction:column;gap:6px;justify-content:center;align-items:center;width:44px;height:44px;background:none;border:0;cursor:pointer}
  .mob-btn span:not(.sr){display:block;width:22px;height:2px;background:var(--ink);transition:transform .2s}
  .mob-btn[aria-expanded=true] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
  .mob-btn[aria-expanded=true] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
  .nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--rule);flex-direction:column;align-items:stretch;padding:8px var(--gut) 18px;max-height:calc(100vh - 72px);overflow:auto}
  .nav.open{display:flex}
  .nav>a,.dd>button{width:100%;text-align:left;padding:12px 4px}
  .dd-menu{position:static;display:block;border:0;box-shadow:none;padding:0 0 6px 10px;min-width:0}
  .dd>button{pointer-events:none;color:var(--ink-3);font-size:.9rem}
  .dd>button::after{display:none}
  .nav .nav-cta{margin:8px 0 0;text-align:center}
}

/* 首頁主視覺：極座標場型圖 */
.hero{padding:clamp(28px,5vw,64px) 0 clamp(36px,5vw,56px)}
.hero-in{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(2.3rem,5.2vw,4.2rem);font-stretch:125%;font-variation-settings:"wdth" 125;letter-spacing:-.02em;line-height:1.02;max-width:11em}
.hero .lede{margin-top:1.4rem}
.plot{margin:0;position:relative}
@media (max-width:860px){.hero-in{grid-template-columns:1fr}.polar{max-width:400px}.hero h1{max-width:none}}
.polar{width:100%;height:auto;display:block;max-width:520px;margin:0 auto;touch-action:pan-y;overflow:visible}
.polar .g{stroke:var(--rule);stroke-width:1;fill:none}
.polar .g0{stroke:#B7C5CF}
.polar .ax{font:500 11px var(--f);fill:var(--ink-3);text-anchor:middle}
.polar .db{font:500 10px var(--f);fill:var(--ink-3)}
.polar .lobe{fill:none;stroke:var(--signal);stroke-width:2.4;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:0}
.polar .lobe-fill{fill:var(--cyan);opacity:.16}
.polar .probe line{stroke:var(--blue);stroke-width:1.5;opacity:0}
.polar .cursor[hidden]{display:none}
.polar .cursor line{stroke:var(--ink);stroke-width:1;stroke-dasharray:3 3}
.polar .cursor circle{fill:var(--ink);stroke:#fff;stroke-width:2}
.js .polar .lobe{stroke-dashoffset:1;animation:trace 2.6s cubic-bezier(.45,.05,.4,1) .25s forwards}
.js .polar .lobe-fill{opacity:0;animation:fillin .8s ease 2.6s forwards}
.js .polar .probe{transform-origin:220px 220px;animation:sweep 2.6s cubic-bezier(.45,.05,.4,1) .25s forwards}
.js .polar .probe line{animation:probe 2.85s linear forwards}
@keyframes trace{to{stroke-dashoffset:0}}
@keyframes fillin{to{opacity:.16}}
@keyframes sweep{from{transform:rotate(-180deg)}to{transform:rotate(180deg)}}
@keyframes probe{0%,8%{opacity:.9}88%{opacity:.9}100%{opacity:0}}
.plot figcaption{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 22px;font-size:.88rem;color:var(--ink-3);margin-top:10px}
.ro b{color:var(--ink);font-weight:650;font-variant-numeric:tabular-nums;display:inline-block;min-width:4.6em}
.ro-hint{flex-basis:100%;text-align:center;font-size:.82rem}
@media (hover:none){.ro-hint{display:none}}

/* 首頁大圖＋規格帶 */
.band{position:relative}
.band>img{width:100%;height:clamp(260px,46vw,620px);object-fit:cover}
.ribbon{margin:-64px 0 0;position:relative;display:grid;grid-template-columns:repeat(4,1fr);background:var(--white);border-radius:4px;box-shadow:0 24px 50px -30px rgba(19,32,42,.45)}
.ribbon>div{padding:22px 24px;border-left:1px solid var(--rule)}
.ribbon>div:first-child{border-left:0}
.ribbon dt{font-size:.9rem;color:var(--ink-3)}
.ribbon dd{margin:4px 0 0;font-size:clamp(1.4rem,2.4vw,1.95rem);font-weight:700;font-stretch:118%;font-variation-settings:"wdth" 118;font-variant-numeric:tabular-nums;color:var(--blue)}
@media (max-width:760px){.ribbon{grid-template-columns:1fr 1fr;margin-top:-40px}.ribbon>div:nth-child(3){border-left:0}.ribbon>div:nth-child(n+3){border-top:1px solid var(--rule)}}

/* 段落標題 */
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:end;margin-bottom:32px}
.sec-head p{margin:0;color:var(--ink-2);max-width:34em}
@media (max-width:760px){.sec-head{grid-template-columns:1fr;gap:10px}}

/* 系統格 */
.systems{padding-top:clamp(64px,8vw,110px);padding-bottom:clamp(56px,7vw,96px)}
.sys-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(240px,auto);gap:14px}
.sys{position:relative;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;border-radius:4px;color:#fff;text-decoration:none;background:var(--ink);min-height:300px}
.sys img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.sys::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(19,32,42,0) 35%,rgba(19,32,42,.88) 100%);z-index:1}
.sys-t{position:relative;z-index:2;padding:20px}
.sys h3{font-size:1.2rem;color:#fff}
.sys p{margin:.35em 0 0;font-size:.95rem;color:rgba(255,255,255,.85);line-height:1.45}
.sys .fig{display:inline-block;margin-top:12px;font-size:.85rem;font-weight:650;color:var(--ink);background:var(--cyan);padding:3px 9px;border-radius:2px}
.sys:hover{color:#fff}
.sys:hover img{transform:scale(1.04)}
.sys-big{grid-column:span 2;grid-row:span 2}
.sys-big h3{font-size:clamp(1.4rem,2.4vw,1.9rem)}
@media (max-width:900px){.sys-grid{grid-template-columns:1fr 1fr}.sys-big{grid-column:span 2;grid-row:auto;min-height:380px}}
@media (max-width:560px){.sys-grid{grid-template-columns:1fr}.sys-big{grid-column:auto}}

/* 服務列 */
.services{background:var(--white);padding:clamp(56px,7vw,96px) 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.svc{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.svc li{border-bottom:1px solid var(--rule)}
.svc a{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr) 28px;gap:24px;align-items:baseline;padding:26px 4px;text-decoration:none;color:var(--ink);transition:background .15s,padding .2s}
.svc a::after{content:"";width:12px;height:12px;border-top:2px solid var(--signal);border-right:2px solid var(--signal);transform:rotate(45deg);justify-self:end;align-self:center}
.svc a:hover{background:var(--paper);padding-left:14px}
.svc h3{font-size:clamp(1.15rem,1.8vw,1.4rem)}
.svc p{margin:0;color:var(--ink-2)}
@media (max-width:760px){.svc a{grid-template-columns:1fr 20px;gap:6px 12px}.svc p{grid-column:1}.svc a::after{grid-row:1/3;grid-column:2}}

/* 時間軸 */
.record{padding-top:clamp(56px,7vw,96px);padding-bottom:clamp(56px,7vw,96px)}
.record .sec-head a{white-space:nowrap}
.tl{list-style:none;margin:0;padding:0}
.tl-row{display:grid;grid-template-columns:repeat(7,minmax(170px,1fr));gap:0;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
.tl-row>li{scroll-snap-align:start;border-top:2px solid var(--ink);padding:0 18px 0 0;position:relative}
.tl-row>li::before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--blue)}
.tl-row>li:last-child::before{background:var(--signal);border-color:var(--signal)}
.yr-n{display:block;font-size:1.6rem;font-weight:750;font-stretch:120%;font-variation-settings:"wdth" 120;margin:20px 0 8px;font-variant-numeric:tabular-nums}
.tl ul{list-style:none;margin:0;padding:0}
.tl ul li{font-size:.93rem;color:var(--ink-2);line-height:1.4;margin-bottom:.55em}
.tl ul li.more{color:var(--ink-3);font-size:.85rem}
.record-full .tl{border-left:2px solid var(--ink);margin-top:24px}
.record-full .tl>li{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:0 0 26px 22px;position:relative}
.record-full .tl>li::before{content:"";position:absolute;left:-7px;top:12px;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--blue)}
.record-full .yr-n{margin:0}
.record-full .tl ul li{font-size:1rem}
@media (max-width:560px){.record-full .tl>li{grid-template-columns:1fr;gap:4px}}

/* CTA */
.cta{background:var(--ink);color:#fff;padding:clamp(56px,7vw,92px) 0;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-180px;top:50%;width:560px;height:560px;transform:translateY(-50%);border-radius:50%;
  background:repeating-radial-gradient(circle,rgba(91,182,226,.18) 0 1px,transparent 1px 56px);pointer-events:none}
.cta-in{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:end;position:relative;z-index:1}
.cta h2{color:#fff;max-width:16em}
.cta p{color:rgba(255,255,255,.78);max-width:34em;margin:1em 0 1.6em}
.cta a:not(.btn){color:#fff}
.cta-c p{margin:0 0 .4em;font-size:1.15rem;color:#fff}
.cta nav h3{font-size:.95rem;color:var(--cyan);margin-bottom:10px}
.cta nav ul{list-style:none;margin:0;padding:0}
.cta nav li a{display:block;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.14);text-decoration:none;color:rgba(255,255,255,.88)}
.cta nav li a:hover{color:var(--cyan)}
.cta nav a[aria-current]{color:var(--cyan)}
@media (max-width:760px){.cta-in{grid-template-columns:1fr}}

/* 內頁 */
.d-hero{padding:clamp(28px,4vw,56px) 0 clamp(32px,4vw,52px)}
.d-hero-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:center}
.d-hero h1{max-width:13em}
.d-hero .lede{margin:1.2rem 0 1.8rem}
.d-hero-img{margin:0;border-radius:4px;overflow:hidden;aspect-ratio:4/3;background:var(--ink)}
.d-hero-img img{width:100%;height:100%;object-fit:cover}
.d-hero-img.fit{background:#fff;border:1px solid var(--rule)}
.d-hero-img.fit img{object-fit:contain}
@media (max-width:860px){.d-hero-in{grid-template-columns:1fr}.d-hero-img{order:-1;aspect-ratio:16/10}}
.specs dl{margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));background:var(--white);border:1px solid var(--rule);border-top:3px solid var(--blue);border-radius:3px}
.specs dl>div{padding:18px 22px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);margin:0 -1px -1px 0}
.specs dt{font-size:.86rem;color:var(--ink-3)}
.specs dd{margin:3px 0 0;font-weight:650;font-size:1.08rem;font-variant-numeric:tabular-nums;line-height:1.35}
.gallery{padding-top:clamp(44px,6vw,72px)}
.gal-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px}
.gal-head h2{font-size:1.3rem}
.car-count{font-size:.92rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
/* 整組寬度＝內容欄寬：左右小圖（--sw）＋間隔（--g）＋中間大圖 */
.car{position:relative;--sw:19%;--g:2%}
.car-stage{position:relative;aspect-ratio:100/43.5}
.car-slide{position:absolute;top:25%;left:40%;width:20%;height:50%;padding:0;border:0;border-radius:4px;overflow:hidden;background:#0E1820;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:left .55s cubic-bezier(.3,.1,.2,1),top .55s cubic-bezier(.3,.1,.2,1),width .55s cubic-bezier(.3,.1,.2,1),height .55s cubic-bezier(.3,.1,.2,1),opacity .45s ease,filter .55s ease,visibility 0s .55s}
.car-slide img{width:100%;height:100%;object-fit:cover}
.car-slide.on,.car-slide.prev,.car-slide.next{visibility:visible;opacity:1;pointer-events:auto;
  transition:left .55s cubic-bezier(.3,.1,.2,1),top .55s cubic-bezier(.3,.1,.2,1),width .55s cubic-bezier(.3,.1,.2,1),height .55s cubic-bezier(.3,.1,.2,1),opacity .45s ease,filter .55s ease}
.car-slide.on{top:0;height:100%;left:calc(var(--sw) + var(--g));width:calc(100% - 2 * var(--sw) - 2 * var(--g));cursor:zoom-in;z-index:2;box-shadow:0 30px 60px -30px rgba(19,32,42,.55)}
.car-slide.on img{object-fit:contain}
.car-slide.prev,.car-slide.next{top:12.5%;height:75%;width:var(--sw);filter:brightness(.42) saturate(.7);cursor:pointer;z-index:1}
.car-slide.prev{left:0}
.car-slide.next{left:calc(100% - var(--sw))}
.car-slide.prev:hover,.car-slide.next:hover{filter:brightness(.7) saturate(.85)}
.car-nav{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);display:flex;gap:28px;z-index:3}
.car-prev,.car-next{position:relative;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(14,24,32,.55);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);cursor:pointer;transition:background .15s}
.car-prev:hover,.car-next:hover{background:rgba(14,24,32,.85)}
.car-prev::after,.car-next::after{content:"";position:absolute;top:50%;left:50%;width:10px;height:10px;border-top:2px solid #fff;border-right:2px solid #fff}
.car-prev::after{transform:translate(-30%,-50%) rotate(-135deg)}
.car-next::after{transform:translate(-70%,-50%) rotate(45deg)}
@media (max-width:760px){
  .car{--sw:12%;--g:2.5%}
  .car-stage{aspect-ratio:100/53}
  .car-nav{bottom:12px;gap:18px}
  .car-prev,.car-next{width:40px;height:40px}
}
@media (prefers-reduced-motion:reduce){.car-slide,.car-slide.on,.car-slide.prev,.car-slide.next{transition:none}}
.body{padding-top:clamp(44px,6vw,72px);padding-bottom:clamp(56px,7vw,90px)}
.body>section+section{margin-top:clamp(40px,5vw,64px)}
.b-text{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px}
.b-text p{max-width:38em;color:var(--ink-2)}
.b-text p:last-child{margin-bottom:0}
.b-lists>h2{margin-bottom:22px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px 40px}
.cols h3{padding-bottom:10px;border-bottom:2px solid var(--ink);margin-bottom:12px}
.cols ul{list-style:none;margin:0;padding:0}
.cols li{padding:7px 0 7px 18px;border-bottom:1px solid var(--rule);position:relative;color:var(--ink-2);line-height:1.45}
.cols li::before{content:"";position:absolute;left:0;top:.95em;width:7px;height:7px;background:var(--cyan);border-radius:1px}
.b-steps ol{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:0;counter-reset:s}
.b-steps li{counter-increment:s;padding:0 18px 0 0;border-top:2px solid var(--ink)}
.b-steps li::before{content:counter(s);display:block;font-size:1.8rem;font-weight:750;font-stretch:120%;font-variation-settings:"wdth" 120;color:var(--signal);margin:12px 0 6px}
.b-steps h3{font-size:1.02rem}
.b-steps p{margin:.35em 0 1em;color:var(--ink-2);font-size:.95rem}
.b-figs{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.b-figs figure{margin:0;background:#fff;border:1px solid var(--rule);border-radius:3px;padding:12px}
.b-figs figcaption{font-size:.92rem;color:var(--ink-2);margin-top:10px}
.vids{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-top:20px}
.yt{position:relative;aspect-ratio:16/9;border:0;padding:0;background:var(--ink);border-radius:4px;overflow:hidden;cursor:pointer;color:#fff;text-align:left;font:inherit}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.8;transition:opacity .2s}
.yt:hover img{opacity:1}
.yt .play{position:absolute;left:50%;top:50%;width:68px;height:68px;margin:-34px 0 0 -34px;border-radius:50%;background:var(--signal)}
.yt .play::after{content:"";position:absolute;left:27px;top:21px;border-left:20px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent}
.yt-t{position:absolute;left:0;right:0;bottom:0;padding:22px 14px 10px;background:linear-gradient(transparent,rgba(19,32,42,.85));font-size:.92rem}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media (max-width:760px){.b-text{grid-template-columns:1fr;gap:12px}}

/* 燈箱 */
.lightbox{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100vw;height:100vh;margin:0}
.lightbox::backdrop{background:rgba(10,18,24,.92)}
.lightbox[open]{display:flex;align-items:center;justify-content:center}
.lightbox img{max-width:92vw;max-height:88vh;width:auto;height:auto;border-radius:2px}
.lightbox button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;width:48px;height:48px;border-radius:50%;font-size:1.7rem;line-height:1;cursor:pointer}
.lightbox button:hover{background:rgba(255,255,255,.25)}
.lb-x{top:16px;right:16px}.lb-p{left:16px;top:50%}.lb-n{right:16px;top:50%}

/* 聯絡 */
.contact-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);padding-top:clamp(28px,4vw,56px);padding-bottom:clamp(40px,5vw,64px)}
.contact h1{max-width:12em}
.contact .lede{margin:1.2rem 0 2rem}
.c-list{margin:0;border-top:2px solid var(--ink)}
.c-list>div{display:grid;grid-template-columns:100px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--rule)}
.c-list dt{color:var(--ink-3);font-size:.92rem;padding-top:2px}
.c-list dd{margin:0}
.c-form{background:#fff;border:1px solid var(--rule);border-top:3px solid var(--signal);border-radius:3px;padding:clamp(20px,3vw,36px);align-self:start}
.c-form h2{font-size:1.4rem;margin-bottom:18px}
.c-form label{display:block;font-size:.92rem;font-weight:600;margin-bottom:14px}
.c-form label span{color:var(--signal-d)}
.c-form input,.c-form select,.c-form textarea{display:block;width:100%;margin-top:6px;font:inherit;font-weight:400;font-size:1rem;color:var(--ink);background:var(--paper);border:1.5px solid var(--rule);border-radius:3px;padding:10px 12px}
.c-form input:focus,.c-form select:focus,.c-form textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(29,95,148,.15)}
.c-form [aria-invalid=true]{border-color:#C0392B}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.form-msg{margin:14px 0 0;font-size:.95rem;min-height:1.2em}
.form-msg.ok{color:#1F7A4D}.form-msg.bad{color:#B42318}
.map iframe{width:100%;height:clamp(280px,40vw,420px);border:0;border-radius:4px;display:block;margin-bottom:clamp(48px,6vw,80px)}
@media (max-width:860px){.contact-in{grid-template-columns:1fr}}
@media (max-width:480px){.row2{grid-template-columns:1fr}}

/* 404 */
.nf-in{padding:clamp(64px,10vw,140px) var(--gut)}
.nf-links{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.nf-links a{display:inline-block;padding:10px 16px;border:1.5px solid var(--ink);border-radius:3px;text-decoration:none;color:var(--ink);font-weight:600}
.nf-links a:hover{background:var(--ink);color:#fff}

/* 頁尾 */
.foot{background:#0E1820;color:rgba(255,255,255,.7);font-size:.94rem;padding:56px 0 28px}
.foot a{color:rgba(255,255,255,.85);text-decoration:none}
.foot a:hover{color:var(--cyan)}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr .8fr;gap:32px}
.foot-logo{height:30px;width:auto;margin-bottom:18px}
.foot h2{font-size:.95rem;color:#fff;margin-bottom:12px;font-stretch:110%}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:8px}
.foot-legal{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem;color:rgba(255,255,255,.5)}
@media (max-width:860px){.foot-in{grid-template-columns:1fr 1fr}.foot-co{grid-column:1/-1}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .polar .lobe,.js .polar .lobe-fill,.js .polar .probe,.js .polar .probe line{animation:none!important;stroke-dashoffset:0}
  .js .polar .lobe-fill{opacity:.16}
  .sys img,.svc a{transition:none}
}