:root{
  --bg:#0b0c0e; --bg2:#131519; --card:#17191e; --line:#262a31;
  --tx:#f2f2ef; --mut:#9aa0a8; --acc:#ff5a1f; --acc2:#ffb400;
  --hero-ov:linear-gradient(90deg,rgba(6,7,9,.88) 0%,rgba(6,7,9,.55) 45%,rgba(6,7,9,.1) 100%);
  --disp:'Barlow Condensed',sans-serif; --zh:'Noto Sans TC',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--tx);font-family:var(--zh);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ── nav ── */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:18px 32px;transition:background .3s}
.nav.solid{background:rgba(11,12,14,.92);backdrop-filter:blur(8px)}
.logo{font-family:var(--disp);font-weight:800;font-style:italic;font-size:26px;letter-spacing:.5px;color:#fff;display:flex;align-items:center;gap:10px}
.logo .stripe{display:inline-block;width:34px;height:14px;background:repeating-linear-gradient(115deg,var(--acc) 0 6px,transparent 6px 10px)}
.logo .zh{font-family:var(--zh);font-style:normal;font-weight:900;font-size:24px;letter-spacing:2px;display:inline-block;transform:skewX(-10deg)}
.menu{display:flex;gap:28px;list-style:none;align-items:center}
.menu>li{position:relative}
.menu>li>a{font-family:var(--zh);font-weight:700;font-size:15px;letter-spacing:1px;color:#fff}
.menu>li>a span{font-family:var(--disp);font-size:13px;font-weight:700;margin-left:6px;opacity:.6;letter-spacing:1.5px}
.menu>li>a:hover{color:var(--acc)}
.drop{position:absolute;top:34px;left:-16px;min-width:210px;background:var(--bg2);border:1px solid var(--line);padding:10px 0;display:none}
.menu>li:hover .drop{display:block}
.drop a{display:flex;justify-content:space-between;padding:9px 18px;font-size:14px;color:var(--tx)}
.drop a b{font-family:var(--disp);font-size:17px;letter-spacing:1px}
.drop a em{font-style:normal;color:var(--mut);font-size:12px}
.drop a:hover{background:var(--acc);color:#fff}.drop a:hover em{color:#fff}
.burger{display:none;width:30px;height:20px;border-top:3px solid #fff;border-bottom:3px solid #fff;position:relative}
.burger:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:3px solid #fff}

/* ── hero ── */
.hero{position:relative;height:100vh;min-height:620px;overflow:hidden;background:#000}
.hero-m,.hero-v{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-m{display:none}
.hero-v{object-position:40% 55%}
.hero:before{content:"";position:absolute;inset:0;background:var(--hero-ov);z-index:1}
.hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:40%;background:linear-gradient(0deg,var(--bg) 0%,transparent 100%);z-index:1}
.hero-in{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;max-width:1200px;margin:0 auto;padding:0 32px}
.kicker{font-family:var(--disp);font-weight:700;letter-spacing:4px;color:var(--acc);font-size:16px;display:flex;align-items:center;gap:12px}
.kicker:before{content:"";width:40px;height:3px;background:var(--acc)}
.hero h1{font-family:var(--disp);font-weight:800;font-style:italic;color:#fff;font-size:clamp(56px,9vw,128px);line-height:.9;letter-spacing:-1px;margin:16px 0 18px;text-transform:uppercase}
.hero h1.zh{font-family:var(--zh);font-weight:900;font-size:clamp(46px,7vw,104px);line-height:1.1;letter-spacing:2px;transform:skewX(-6deg);transform-origin:left}
.hero h1 i{color:var(--acc);font-style:italic}
.hero .sub{color:#e6e6e2;font-size:clamp(16px,1.6vw,20px);max-width:560px;font-weight:500}
.hero .sub b{color:#fff}
.btns{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;font-weight:700;font-size:15px;letter-spacing:1px;clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)}
.btn.p{background:var(--acc);color:#fff}
.btn.g{background:rgba(255,255,255,.12);color:#fff;backdrop-filter:blur(4px)}
.btn:hover{filter:brightness(1.12)}

/* ── gauges ── */
.gauges{position:relative;z-index:3;margin-top:-92px}
.gauges .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--card);border:1px solid var(--line)}
.g{padding:22px 24px;border-right:1px solid var(--line);position:relative}
.g:last-child{border-right:0}
.g .n{font-family:var(--disp);font-weight:800;font-size:44px;line-height:1;letter-spacing:.5px}
.g .n small{font-size:20px;color:var(--mut);margin-left:4px;font-weight:700}
.g .l{color:var(--mut);font-size:13px;margin-top:6px}
.g .bar{height:4px;background:var(--line);margin-top:14px;overflow:hidden}
.g .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--acc2),var(--acc))}

/* ── sections ── */
section.blk{padding:96px 0 0}
.head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:20px}
.head .num{font-family:var(--disp);font-weight:800;font-style:italic;font-size:64px;line-height:.8;color:transparent;-webkit-text-stroke:1.5px var(--acc)}
.head h2{font-size:30px;font-weight:900;letter-spacing:1px;margin-top:6px}
.head h2 em{font-family:var(--disp);font-style:normal;color:var(--mut);font-size:18px;letter-spacing:3px;margin-left:12px;font-weight:700}
.head .more{font-family:var(--disp);font-weight:700;letter-spacing:2px;color:var(--acc);white-space:nowrap}

/* garage */
.garage{display:grid;grid-template-columns:1.25fr 1fr;gap:20px}
.car{position:relative;overflow:hidden;background:#000;min-height:520px;display:block}
.car img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.car:hover img{transform:scale(1.05)}
.car:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.1) 55%);z-index:1}
.car .info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px;color:#fff}
.tag{display:inline-block;font-family:var(--disp);font-weight:700;letter-spacing:2px;font-size:13px;padding:3px 10px;background:var(--acc);color:#fff}
.tag.sold{background:#fff;color:#111}
.car h3{font-family:var(--disp);font-weight:800;font-style:italic;font-size:46px;line-height:1;margin:10px 0 4px;text-transform:uppercase}
.car .yr{color:#cfcfcb;font-size:14px}
.spec{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px;border-top:1px solid rgba(255,255,255,.2);padding-top:14px}
.spec div{font-size:12px;color:#bdbdb8}
.spec b{display:block;font-family:var(--disp);font-size:24px;color:#fff;letter-spacing:.5px;font-weight:700}
.car.f20{background:#111}
.car.f20 img{object-position:center}

/* ledger */
.ledger{display:grid;grid-template-columns:1fr 1.2fr;gap:20px}
.panel{background:var(--card);border:1px solid var(--line);padding:28px}
.big{font-family:var(--disp);font-weight:800;font-size:84px;line-height:.9;letter-spacing:-1px}
.big small{font-size:26px;color:var(--mut);font-weight:700;margin-left:6px}
.panel p{color:var(--mut);font-size:14px;margin-top:10px}
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.mini div{border-left:3px solid var(--acc);padding-left:10px;font-size:12px;color:var(--mut)}
.mini b{display:block;font-family:var(--disp);font-size:26px;color:var(--tx)}
.rows .r{display:grid;grid-template-columns:96px 1fr 92px;gap:12px;align-items:center;margin-bottom:12px;font-size:14px}
.rows .r span:last-child{font-family:var(--disp);font-size:19px;text-align:right;font-weight:700}
.rows .t{height:12px;background:var(--line)}
.rows .t i{display:block;height:100%;background:linear-gradient(90deg,var(--acc2),var(--acc))}
.order{margin-top:20px;border-top:1px dashed var(--line);padding-top:14px;font-size:13px;color:var(--mut)}
.order div{display:grid;grid-template-columns:88px 70px 1fr 74px;gap:10px;padding:6px 0;border-bottom:1px solid var(--line)}
.order div span:last-child{text-align:right;font-family:var(--disp);font-size:16px;color:var(--tx)}

/* workshop */
.shop{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.shop a{position:relative;aspect-ratio:1/1;overflow:hidden;background:#000}
.shop img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.85);transition:transform .5s,filter .5s}
.shop a:hover img{transform:scale(1.07);filter:none}
.shop span{position:absolute;left:0;right:0;bottom:0;padding:28px 12px 10px;background:linear-gradient(0deg,rgba(0,0,0,.85),transparent);color:#bbb;font-size:12px}
.shop b{display:block;color:#fff;font-size:14px}
.about .kicker{margin-bottom:10px}

/* videos timeline */
.vids{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.vid{background:var(--card);border:1px solid var(--line);display:block}
.vid .th{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000}
.vid .th img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.vid:hover .th img{transform:scale(1.06)}
.vid .th:after{content:"";position:absolute;left:50%;top:50%;width:54px;height:54px;margin:-27px 0 0 -27px;border-radius:50%;background:rgba(0,0,0,.55) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M8 5v14l11-7z'/%3E%3C/svg%3E") center/26px no-repeat;border:2px solid rgba(255,255,255,.8)}
.vid .tx{padding:16px 18px 20px}
.vid .d{font-family:var(--disp);font-weight:700;color:var(--acc);letter-spacing:2px;font-size:14px}
.vid h4{font-size:16px;line-height:1.5;margin-top:6px;font-weight:700}
.vid .vw{color:var(--mut);font-size:12px;margin-top:8px}

/* articles */
.arts{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.art{display:grid;grid-template-columns:70px 1fr;gap:16px;padding:22px 8px;border-bottom:1px solid var(--line)}
.art:nth-child(odd){border-right:1px solid var(--line);padding-right:24px}
.art .k{font-family:var(--disp);font-weight:800;font-style:italic;font-size:40px;color:var(--line);line-height:1}
.art:hover .k{color:var(--acc)}
.art .c{font-size:12px;color:var(--acc);font-weight:700;letter-spacing:1px}
.art h4{font-size:17px;line-height:1.55;margin-top:4px}
.art p{font-size:13px;color:var(--mut);margin-top:4px}

/* about */
.about{margin-top:96px;position:relative;overflow:hidden;background:#000;color:#fff}
.about img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.about .wrap{position:relative;padding-top:90px;padding-bottom:90px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about h2{font-family:var(--disp);font-weight:800;font-style:italic;font-size:60px;line-height:.95;text-transform:uppercase}
.about h2 i{color:var(--acc)}
.about p{color:#ddd;margin-top:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{font-family:var(--disp);font-weight:700;letter-spacing:1px;font-size:17px;padding:6px 14px;border:1px solid rgba(255,255,255,.35)}
.chips span.on{background:var(--acc);border-color:var(--acc)}
footer{padding:40px 0 60px;color:var(--mut);font-size:13px;text-align:center}


.logo,.menu>li>a{white-space:nowrap}
@media (max-width:1240px){.menu{gap:20px}.menu>li>a span{display:none}}
@media (max-width:1060px){.menu{gap:16px}.menu>li>a{font-size:14px}}

/* ── mobile ── */
@media (max-width:860px){
  .nav{padding:14px 18px}.menu{display:none}.burger{display:block}
  .logo .zh{font-size:20px}
  .hero{height:100svh;min-height:560px}
  .hero:before{background:linear-gradient(180deg,rgba(6,7,9,.9) 0%,rgba(6,7,9,.55) 38%,rgba(6,7,9,0) 62%)}
  .hero-m{display:block;object-position:center 80%}.hero-v{display:none}
  .shop{grid-template-columns:repeat(2,1fr)}
  .hero-in{justify-content:flex-start;padding:96px 20px 0}
  .kicker{font-size:12px;letter-spacing:2px}.kicker:before{width:24px}
  .hero h1{margin:10px 0 12px}
  .hero .sub{font-size:15px}
  .btns{margin-top:20px}.btn{padding:12px 20px;font-size:14px}
  .gauges{margin-top:-56px}
  .car{min-height:0;display:flex;flex-direction:column;background:var(--card)}
  .car img{position:relative;height:auto;aspect-ratio:4/5}
  .car.f20 img{aspect-ratio:16/10}
  .car:before{display:none}
  .car .info{position:relative;background:#111}
  .gauges .wrap{grid-template-columns:repeat(2,1fr);margin:0 16px;padding:0}
  .g{padding:16px}.g:nth-child(2){border-right:0}.g:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .g .n{font-size:34px}
  .wrap{padding:0 16px}
  section.blk{padding-top:64px}
  .head .num{font-size:44px}.head h2{font-size:22px}.head h2 em{display:none}
  .garage,.ledger,.vids,.arts,.about .wrap{grid-template-columns:1fr}
  .car h3{font-size:38px}
  .spec{grid-template-columns:repeat(2,1fr)}
  .big{font-size:64px}
  .rows .r{grid-template-columns:76px 1fr 78px;font-size:13px}
  .order div{grid-template-columns:74px 1fr 64px}.order div span:nth-child(2){display:none}
  .art:nth-child(odd){border-right:0;padding-right:8px}
  .about h2{font-size:44px}
}

/* ── 內頁共用 ── */
.nav.solid,.inner .nav{background:rgba(11,12,14,.94);backdrop-filter:blur(8px)}
.menu a[aria-current]{color:var(--acc)}
.phead{position:relative;padding:150px 0 56px;background:#000;overflow:hidden}
.phead img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.phead:after{content:"";position:absolute;left:0;right:0;bottom:0;height:60%;background:linear-gradient(0deg,var(--bg),transparent)}
.phead .wrap{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--mut);margin-bottom:14px}
.crumb a:hover{color:var(--acc)}
.crumb span{margin:0 6px;opacity:.5}
.phead h1{font-size:clamp(28px,4vw,46px);font-weight:900;line-height:1.3;max-width:900px;margin-top:10px}
.phead .lead{color:#d6d6d2;font-size:17px;max-width:760px;margin-top:14px}
.byline{display:flex;gap:16px;flex-wrap:wrap;color:var(--mut);font-size:13px;margin-top:18px}
.byline b{color:var(--tx)}
.post{max-width:780px;margin:0 auto;padding:40px 24px 0;font-size:17px;line-height:1.95}
.post>p,.post li{color:#dcdcd8}
.post p{margin:0 0 1.2em}
.post h2{font-size:26px;font-weight:900;line-height:1.4;margin:2.2em 0 .8em;padding-left:16px;border-left:5px solid var(--acc)}
.post h3{font-size:20px;font-weight:700;margin:1.8em 0 .6em}
.post ul,.post ol{margin:0 0 1.4em 1.3em}
.post li{margin:.3em 0}
.post strong{color:#fff}
.post a{color:var(--acc);border-bottom:1px solid rgba(255,90,31,.4)}
.post figure{margin:1.6em 0}
.post figure img{width:100%;height:auto;background:#000}
.post figure.tall img{max-height:620px;width:auto;margin:0 auto}
.post figcaption{font-size:13px;color:var(--mut);margin-top:8px;text-align:center}
.facts{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--acc);padding:20px 24px;margin:0 0 2em}
.facts h2{border:0;padding:0;margin:0 0 10px;font-size:18px;color:var(--acc)}
.facts ul{margin:0 0 0 1.2em}
.note{background:rgba(255,180,0,.08);border-left:4px solid var(--acc2);padding:14px 18px;margin:1.4em 0;font-size:15px;color:#e8e2cf}
.tbl{overflow-x:auto;margin:1.4em 0;-webkit-overflow-scrolling:touch}
.tbl table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px;line-height:1.6}
.tbl th{background:#1d2026;color:#fff;font-weight:700;text-align:center;padding:10px 12px;border:1px solid var(--line);white-space:nowrap}
.tbl td{padding:10px 12px;border:1px solid var(--line);vertical-align:top;color:#d6d6d2}
.tbl td.n{text-align:right;font-family:var(--disp);font-size:18px;font-weight:700;color:#fff;white-space:nowrap}
.tbl th.hl{background:var(--acc)}
.tbl tr.sum td{background:#1a1c21;font-weight:700;color:#fff}
.tt{max-width:340px;margin:1.6em auto}.tt iframe{display:block;width:100%;height:740px;border:0;background:#000}
.yt{position:relative;aspect-ratio:16/9;background:#000;margin:1.6em 0;cursor:pointer;overflow:hidden}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.85}
.yt button{position:absolute;inset:0;border:0;background:transparent;cursor:pointer}
.yt button:after{content:"";position:absolute;left:50%;top:50%;width:72px;height:72px;margin:-36px 0 0 -36px;border-radius:50%;background:var(--acc) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M8 5v14l11-7z'/%3E%3C/svg%3E") center/34px no-repeat}
.yt .cap{position:absolute;left:0;right:0;bottom:0;padding:30px 16px 12px;background:linear-gradient(0deg,rgba(0,0,0,.85),transparent);color:#fff;font-size:14px;font-weight:700}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.author{display:grid;grid-template-columns:88px 1fr;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);padding:20px 22px;margin:3em 0 0}
.author .av{width:88px;height:88px;border-radius:6px;object-fit:cover;flex:none;background:var(--acc);display:flex;align-items:center;justify-content:center;font-family:var(--disp);font-weight:800;font-style:italic;font-size:26px;color:#fff}
.author p{margin:4px 0 0;font-size:14px;color:var(--mut);line-height:1.7}
.author a{color:var(--acc)}
.related{max-width:1200px;margin:72px auto 0;padding:0 24px}
.related h2{font-size:22px;font-weight:900;margin-bottom:16px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);display:block;overflow:hidden}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s}
.card:hover img{transform:scale(1.05)}
.card .tx{padding:14px 16px 18px}
.card .c{font-size:12px;color:var(--acc);font-weight:700;letter-spacing:1px}
.card h3{font-size:16px;line-height:1.55;margin-top:4px}
.spec-sheet{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);margin:0 0 2em;background:var(--card)}
.spec-sheet div{padding:16px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;color:var(--mut)}
.spec-sheet b{display:block;font-family:var(--disp);font-size:26px;color:var(--tx);font-weight:700;line-height:1.2}
.calc{background:var(--card);border:1px solid var(--line);padding:24px;margin:1.4em 0}
.calc .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc label{display:block;font-size:14px;color:var(--mut);margin-bottom:4px}
.calc input{width:100%;background:#0e0f12;border:1px solid var(--line);color:#fff;font-size:18px;padding:10px 12px;font-family:var(--disp)}
.calc .out{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.calc .out div{background:#0e0f12;border-left:4px solid var(--acc);padding:12px 14px;font-size:13px;color:var(--mut)}
.calc .out b{display:block;font-family:var(--disp);font-size:30px;color:#fff}
.list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.err{padding:180px 0 80px;text-align:center}
.err h1{font-family:var(--disp);font-size:120px;font-style:italic;color:var(--acc);line-height:1}
@media (max-width:860px){
  .menu.open{display:flex;position:fixed;top:56px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:var(--bg2);padding:8px 18px 18px;border-bottom:1px solid var(--line)}
  .menu.open>li{width:100%;border-bottom:1px solid var(--line)}
  .menu.open>li>a{display:block;padding:12px 0;font-size:16px}
  .menu.open>li>a span{display:inline}
  .menu.open .drop{display:block;position:static;border:0;background:transparent;padding:0 0 8px}
  .phead{padding:110px 0 36px}
  .post{padding:28px 16px 0;font-size:16px}
  .post h2{font-size:22px}
  .cards,.list{grid-template-columns:1fr}
  .spec-sheet{grid-template-columns:repeat(2,1fr)}
  .calc .row,.calc .out{grid-template-columns:1fr}
  .related{padding:0 16px}
}

/* ── 輪胎尺寸計算機 ── */
.calc select,.tool select{width:100%;background:#0e0f12;border:1px solid var(--line);color:#fff;font-size:18px;padding:10px 12px;font-family:var(--disp);appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--mut) 50%),linear-gradient(135deg,var(--mut) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 12px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.tc-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.tc-side{border:1px solid var(--line);padding:14px 16px 12px;min-width:0}
.tc-side legend{font-family:var(--disp);font-weight:700;font-size:15px;letter-spacing:1px;color:var(--acc2);padding:0 6px}
.tc-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.tc-spec{font-family:var(--disp);font-size:28px;font-weight:800;color:#fff;margin:10px 0 0;letter-spacing:1px}
.tc-verdict{margin:18px 0 0;padding:14px 18px;border-left:6px solid var(--mut);background:#0e0f12;display:flex;flex-wrap:wrap;gap:4px 18px;align-items:baseline}
.tc-verdict b{font-family:var(--disp);font-size:26px;color:#fff;letter-spacing:.5px}
.tc-verdict span{font-size:14px;color:var(--mut)}
.tc-verdict.ok{border-color:#2ecc71}.tc-verdict.ok b{color:#2ecc71}
.tc-verdict.warn{border-color:var(--acc2)}.tc-verdict.warn b{color:var(--acc2)}
.tc-verdict.bad{border-color:var(--acc)}.tc-verdict.bad b{color:var(--acc)}
.tc-unit{font-size:13px;color:var(--mut);margin:16px 0 0}
.tc-cmp{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:8px 0 0}
.tc-panel{margin:0;background:#0e0f12;border:1px solid var(--line);padding:8px 6px 4px}
.tc-panel figcaption{font-size:13px;color:var(--mut);text-align:center;letter-spacing:1px}
.tc-panel.new figcaption{color:var(--acc)}
.tc-panel svg{display:block;width:100%;aspect-ratio:1;overflow:visible}
.dim .ln{fill:none;stroke-width:.6}.dim .arc{marker-end:none}
.dim text{font-family:var(--disp);font-size:4.6px;font-weight:700}
.dim text.u{font-size:3px;font-weight:400;fill:var(--mut)}
.tc-h{font-size:17px;margin:22px 0 8px;color:var(--acc2)}
.tc-table{margin:10px 0 0}.tc-table table{min-width:0}
.tc-table td.n{font-size:16px}
.tc-notes{margin:0 0 0 1.2em;font-size:15px}.tc-notes li{margin:6px 0}
.faq details{border:1px solid var(--line);background:var(--card);margin:0 0 10px;padding:0 18px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;position:relative;padding-right:28px}
.faq summary::after{content:'+';position:absolute;right:0;top:12px;font-family:var(--disp);font-size:22px;color:var(--acc)}
.faq details[open] summary::after{content:'−'}
.faq details p{padding:0 0 14px;color:#d6d6d2}
@media (max-width:860px){
  .tc-grid{grid-template-columns:1fr}
  .tc-row{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .calc select{font-size:16px;padding:10px 8px}
  .tc-spec{font-size:24px}
  .tc-cmp{grid-template-columns:1fr;gap:10px}.tc-panel{max-width:340px;margin:0 auto;width:100%}
  .dim text{font-size:5px}.dim text.u{font-size:3.4px}
  .tc-table table{font-size:13px}.tc-table th,.tc-table td{padding:8px 8px}.tc-table td.n{font-size:15px}
}

/* ── 養車成本計算機 ── */
[hidden]{display:none!important}
.calc h3{font-size:15px;color:var(--acc2);margin:22px 0 10px;letter-spacing:1px}.calc h3:first-of-type{margin-top:6px}
.calc label small{display:block;font-size:11px;color:#777d86;margin-top:1px}
.calc .hint{font-size:13px;color:var(--mut);margin:10px 0 0}
.cc .row{grid-template-columns:repeat(3,1fr)}
.cc-presets{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 6px;font-size:13px;color:var(--mut)}
.cc-presets button{background:#0e0f12;border:1px solid var(--line);color:#fff;font-size:13px;padding:6px 12px;cursor:pointer}.cc-presets button:hover{border-color:var(--acc);color:var(--acc)}
.seg{display:inline-flex;border:1px solid var(--line);margin:0 0 12px}.seg button{background:#0e0f12;border:0;color:var(--mut);font-size:14px;padding:8px 22px;cursor:pointer;font-weight:700}.seg button.on{background:var(--acc);color:#fff}
.cc-out{grid-template-columns:repeat(4,1fr)}.cc-out .k{border-left-color:var(--acc2)}.cc-out .k b{color:var(--acc2)}
.cc-rows{margin-top:8px}.cc-rows .r{grid-template-columns:130px 1fr 80px}
@media (max-width:860px){.cc .row{grid-template-columns:1fr}.calc .cc-out{grid-template-columns:1fr 1fr}.cc-rows .r{grid-template-columns:100px 1fr 70px}}
.cc-sticky{display:none;position:fixed;left:0;right:0;bottom:0;z-index:40;background:rgba(11,12,14,.95);backdrop-filter:blur(6px);border-top:1px solid var(--line);padding:8px 16px;justify-content:space-between;align-items:center;font-size:12px;color:var(--mut)}
.cc-sticky b{display:block;font-family:var(--disp);font-size:22px;color:#fff;line-height:1.1}.cc-sticky .k b{color:var(--acc2)}
@media (max-width:860px){.cc-sticky.show{display:flex}}

/* ── 熱血性能感（Hans 2026-10-29）：全站共用的賽車元素 ── */
:root{--speed:linear-gradient(90deg,var(--acc) 0 62%,var(--acc2) 62% 78%,transparent 78% 81%,var(--acc2) 81% 84%,transparent 84% 87%,var(--acc) 87%);--cut:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px))}
.phead img{opacity:.62;filter:saturate(1.15) contrast(1.05)}
.phead:before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(6,7,9,.86) 0%,rgba(6,7,9,.5) 55%,rgba(6,7,9,.15) 100%)}
.phead .wrap:after{content:"";display:block;width:180px;height:6px;margin-top:22px;background:var(--speed);transform:skewX(-30deg);transform-origin:left}
.phead h1{font-style:italic;transform:skewX(-4deg);transform-origin:left;text-shadow:0 2px 18px rgba(0,0,0,.5)}
.card{position:relative;clip-path:var(--cut);transition:border-color .25s}
.card:before{content:"";position:absolute;left:0;top:0;right:0;height:4px;background:var(--speed);z-index:2;transform:scaleX(0);transform-origin:left;transition:transform .35s}
.card:hover{border-color:var(--acc)}.card:hover:before{transform:scaleX(1)}
.post h2{transform:skewX(-3deg);transform-origin:left}

/* ── 工具共用外觀：所有工具（.tool、舊的 .calc）同一套 ── */
.tool,.calc{position:relative;background:linear-gradient(160deg,#1b1e24 0%,#131519 60%);border:1px solid var(--line);clip-path:var(--cut);padding:28px 24px 24px}
.tool:before,.calc:before{content:"";position:absolute;left:0;top:0;right:0;height:5px;background:var(--speed)}
.tool-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:0 0 18px}
.tool-step{font-size:13px;font-weight:700;color:var(--mut);background:#0e0f12;padding:8px 10px 8px 12px;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tool-step i{font-family:var(--disp);font-style:italic;font-weight:800;font-size:18px;margin-right:6px;color:var(--line)}
.tool-step.on{background:var(--acc);color:#fff}.tool-step.on i{color:#fff}
.tool-h{font-size:17px;font-weight:900;margin:22px 0 10px;color:var(--acc2)}
.tool-h small{display:block;font-size:13px;font-weight:400;color:var(--mut);margin-top:2px}
.tool-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;background:var(--acc);color:#fff;font-family:var(--zh);font-weight:900;font-size:17px;letter-spacing:1px;padding:15px 30px;clip-path:polygon(12px 0,100% 0,calc(100% - 12px) 100%,0 100%);transition:filter .2s}
.tool-btn:hover{filter:brightness(1.12)}.tool-btn:disabled{opacity:.45;cursor:default;filter:none}
.tool-btn.y{background:var(--acc2);color:#111}
.tool-btn.g{background:#2a2e36;color:#fff}.tool-btn.g.on{background:var(--acc2);color:#111}
.tool-btn.s{font-size:14px;padding:9px 18px}
.tool-bar{height:6px;background:#0e0f12;margin:14px 0 6px;overflow:hidden}
.tool-bar i{display:block;height:100%;width:0;background:var(--speed);background-size:220px 100%;transition:width .2s}
.tool-msg{font-size:14px;color:var(--mut);min-height:1.7em;margin:0}
.answer{background:rgba(255,90,31,.08);border-left:5px solid var(--acc);padding:16px 20px;margin:0 0 1.6em;font-size:16px;color:#e8e6e1}
.answer b{display:block;color:#fff;font-size:18px;margin-bottom:4px}
.tool-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:0 0 2em}
.tool-card{position:relative;display:block;background:#000;clip-path:var(--cut);overflow:hidden;min-height:340px;border:0!important}
.tool-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s;filter:saturate(1.1)}
.tool-card:hover img{transform:scale(1.06)}
.tool-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.92) 0%,rgba(0,0,0,.35) 55%,rgba(0,0,0,0) 100%)}
.tool-card .tx{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px}
.tool-card i{font-family:var(--disp);font-style:italic;font-weight:800;font-size:48px;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--acc2)}
.tool-card h3{font-size:22px;font-weight:900;color:#fff;margin:4px 0 6px;transform:skewX(-4deg);transform-origin:left}
.tool-card p{font-size:14px;color:#d6d6d2;margin:0 0 12px;line-height:1.6}
.tool-card span{display:inline-block;background:var(--acc);color:#fff;font-weight:700;font-size:14px;padding:6px 16px;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%)}
.post .tool-card{border-bottom:0}
.credit{font-size:12px;color:#6f757e;margin-top:2em}
ol.howto{counter-reset:h;list-style:none;margin-left:0}
ol.howto li{counter-increment:h;position:relative;padding-left:52px;margin:0 0 14px}
ol.howto li:before{content:counter(h,decimal-leading-zero);position:absolute;left:0;top:-2px;font-family:var(--disp);font-style:italic;font-weight:800;font-size:30px;color:var(--acc);line-height:1.2}

/* 影片車牌打碼 */
.pb-drop{display:block;border:2px dashed #3a3f48;padding:30px 16px;text-align:center;cursor:pointer;background:#0e0f12;transition:border-color .2s,background .2s}
.pb-drop:hover,.pb-drop.over{border-color:var(--acc);background:rgba(255,90,31,.06)}
.pb-drop input{display:none}.pb-drop[hidden]{display:none}
.pb-drop-t{display:inline-block;background:var(--acc);color:#fff;font-weight:900;font-size:18px;letter-spacing:1px;padding:13px 34px;clip-path:polygon(12px 0,100% 0,calc(100% - 12px) 100%,0 100%)}
.pb-drop-s{display:block;font-size:13px;color:var(--mut);margin-top:10px}
.pb-stage{margin:16px 0 0}
.pb-view{position:relative;background:#000}
.pb-view video{display:block;width:100%;max-height:68vh;object-fit:contain}
.pb-view canvas{position:absolute;inset:0;width:100%;height:100%;cursor:pointer;touch-action:none}
.pb-ctrl{display:flex;align-items:center;gap:8px;margin-top:10px;font-family:var(--disp);font-size:16px;color:var(--mut)}
.pb-ctrl input{flex:1;min-width:60px;accent-color:var(--acc)}.pb-ctrl .tool-btn{white-space:nowrap}
.pb-tracks{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.pb-tk{display:block;background:#0e0f12;border:2px solid var(--acc);padding:6px;cursor:pointer;color:#fff;text-align:left;font-family:var(--zh)}
.pb-tk.keep{border-color:#2ecc71;opacity:.7}
.pb-tk canvas{display:block;width:100%;height:54px;object-fit:contain;background:#000;margin-bottom:6px}
.pb-tk span{display:flex;flex-wrap:wrap;gap:2px 8px;font-size:12px;color:var(--mut);align-items:baseline}
.pb-tk b{font-family:var(--disp);font-size:17px;color:#fff}
.pb-tk em{font-style:normal;margin-left:auto;font-weight:700;color:var(--acc)}.pb-tk.keep em{color:#2ecc71}
.pb-opts{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;margin:16px 0 0;font-size:14px;color:var(--mut)}
.pb-opts select{width:auto;display:inline-block;font-size:15px;padding:6px 32px 6px 10px}
.pb-opts input[type=range]{accent-color:var(--acc);vertical-align:middle;width:110px}
.pb-go{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.pb-go #pb-go:disabled{opacity:1;background:linear-gradient(90deg,var(--acc) var(--p,0%),#2a2e36 var(--p,0%))}
.pb-gomsg{margin-top:10px;color:#fff;font-weight:700}
@media (max-width:860px){
  .tool,.calc{padding:24px 14px 18px}
  .tool-steps{grid-template-columns:repeat(2,1fr)}
  .tool-list{grid-template-columns:1fr}.tool-card{min-height:280px}
  .pb-tracks{grid-template-columns:repeat(2,1fr)}
  .pb-view video{max-height:52vh}
  .pb-go .tool-btn{flex:1}
  .pb-ctrl{flex-wrap:wrap}.pb-ctrl input{order:-1;flex:1 1 100%}#pb-swap{margin-left:auto}
  .phead .wrap:after{width:120px;margin-top:16px}
}