/* Black Box Studio — 深色科技風
   顏色規則：國際橙（航空黑盒的真正顏色）只代表「行動」同「狀態」——主要按鈕、連結、追蹤進度。
   其他位置一律用中性色。六角形來自品牌 logo <⬡>，用喺追蹤進度點。 */
:root{
  --bg:#0b0b0c; --bg-2:#111113; --card:#161618; --card-2:#1c1c1f;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --ink:#f2f2f3; --ink-2:#c9c9ce; --muted:#9a9aa1; --hint:#83838b;
  --orange:#ff5a1f; --orange-hi:#ff6c36; --orange-ink:#0b0b0c; --orange-soft:rgba(255,90,31,.12);
  --neutral-soft:rgba(255,255,255,.06);
  --r-lg:22px; --r-md:14px; --max:1080px; --wide:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang HK","PingFang TC","Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --hex:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1.0625rem;line-height:1.6;-webkit-font-smoothing:antialiased}
:lang(en) body,body:lang(en){line-height:1.55}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none}
a:hover{color:#fff}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px}
h1,h2,h3{margin:0;line-height:1.15;letter-spacing:-.01em;font-weight:700}
p{margin:0}
[hidden]{display:none !important}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.wrap-wide{max-width:var(--wide);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--orange);color:var(--orange-ink);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.mono{font-family:var(--mono);letter-spacing:.02em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,11,12,.82);backdrop-filter:saturate(160%) blur(18px);-webkit-backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--wide);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:inline-flex;align-items:center;min-height:44px;flex:none}
.brand img{height:25px;width:auto}
.nav-end{display:flex;align-items:center;gap:10px}
.menu{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:2px}
.menu a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;color:var(--ink-2);font-size:.9375rem}
.menu a:hover{color:#fff;background:var(--neutral-soft)}
.menu a[aria-current="page"]{color:#fff;font-weight:600}
.menu .menu-cta{margin-left:8px}
.menu .menu-cta a{color:var(--orange-ink)}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;color:var(--ink);border-radius:10px;cursor:pointer}
.menu-toggle span,.menu-toggle span::before{display:block;width:20px;height:2px;background:currentColor;margin:0 auto;position:relative;transition:transform .25s var(--ease)}
.menu-toggle span::before{content:"";position:absolute;top:6px;left:0}
.menu-toggle span{transform:translateY(-3px)}
.menu-toggle[aria-expanded="true"] span{transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(-6px) rotate(-90deg)}

/* 語言切換：分段控制，現時語言高亮 */
.lang{display:inline-flex;align-items:center;padding:3px;border:1px solid var(--line-2);border-radius:999px;font-size:.875rem;font-weight:600;line-height:1}
.lang>*{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:32px;padding:0 10px;border-radius:999px}
.lang .on{background:var(--ink);color:var(--bg)}
.lang a{color:var(--ink-2);position:relative}
.lang a::after{content:"";position:absolute;inset:-6px -2px}  /* 擴大點擊範圍到 44px */
.lang a:hover{color:#fff;background:var(--neutral-soft)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;font-weight:700;font-size:1rem;border:1px solid transparent;background:transparent;color:var(--ink);cursor:pointer;transition:transform .15s var(--ease),background .2s,border-color .2s;font-family:inherit}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--orange);color:var(--orange-ink)}
.btn-primary:hover{background:var(--orange-hi);color:var(--orange-ink)}
.btn-ghost{border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-2);background:var(--neutral-soft)}
.btn-sm{min-height:40px;padding:0 16px;font-size:.9375rem}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.6;cursor:progress}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.center .ctas{justify-content:center}
.link{color:var(--orange);font-weight:600}
.link:hover{color:#ff7a45}

/* ---------- Type ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.8125rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.eyebrow::before{content:"";width:11px;height:10px;background:var(--muted);clip-path:var(--hex)}
.display{font-size:clamp(2.5rem,6.4vw,4.5rem);line-height:1.08;letter-spacing:-.025em;margin-top:20px;font-weight:600}
.display-sm{font-size:clamp(2.25rem,5vw,3.5rem)}
:lang(en) .display{letter-spacing:-.03em}
.headline{font-size:clamp(1.875rem,4vw,2.75rem);text-wrap:balance;font-weight:600;letter-spacing:-.02em}
.title{font-size:clamp(1.5rem,3vw,2rem);text-wrap:balance}
.eyebrow+.headline,.eyebrow+.title{margin-top:14px}
.sub{color:var(--ink-2);font-size:clamp(1.0625rem,1.7vw,1.25rem);margin-top:16px;max-width:42em}
.center{text-align:center}
.center .sub{margin-left:auto;margin-right:auto}
.muted{color:var(--muted)}

/* ---------- Sections ---------- */
.sec{padding:120px 0}
.sec-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-flush{padding-top:0}
.sec-track{padding-top:48px}
.sec-head{margin-bottom:56px;max-width:44em}
.sec-head.center{margin-left:auto;margin-right:auto}
.grid-bg{background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;background-position:center top}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 80px;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 70% at 78% 40%,rgba(255,90,31,.10),transparent 70%);pointer-events:none}
.hero .wrap-wide{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero .sub{max-width:30em}
.hero-art img{width:100%;max-width:560px;margin-left:auto}
.chips{list-style:none;margin:28px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line-2);border-radius:999px;font-size:.875rem;color:var(--muted)}
.chip b{color:var(--ink);font-weight:600}

/* ---------- Tracking (signature: 六角進度點，來自 logo) ---------- */
.ladder-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.tag{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-lg);padding:24px 26px 26px;max-width:420px;width:100%}
.tag-head{padding-bottom:16px;margin-bottom:18px;border-bottom:2px solid var(--orange)}
.tag-head img{height:18px;width:auto}
.tag-top{display:flex;justify-content:space-between;align-items:center;gap:12px}
.tag-k{font-family:var(--mono);font-size:.8125rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.tag-code{font-family:var(--mono);font-size:1.25rem;font-weight:700;letter-spacing:.06em;margin-top:6px}
.tag-sub{font-size:.875rem;margin-top:6px}
.tag .qr{width:112px;height:112px;background:#fff;border-radius:10px;padding:8px;flex:none}
.tag .qr img{width:100%;height:100%;image-rendering:pixelated}
.tag-meta{margin:18px 0 0;padding-top:18px;border-top:1px dashed var(--line-2);display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:.875rem}
.tag-meta dt{color:var(--muted)}
.tag-meta dd{margin:2px 0 0;font-weight:600}
.status-now{color:var(--orange)}
.tag-try{margin-top:18px}
.ladder{list-style:none;margin:0;padding:0;position:relative}
.ladder-wrap .ladder{margin-top:32px}
.ladder::before{content:"";position:absolute;left:12px;top:14px;bottom:14px;width:2px;background:var(--line-2)}
.ladder li{position:relative;padding:0 0 22px 46px}
.ladder li:last-child{padding-bottom:0}
.ladder .dot{position:absolute;left:0;top:1px;width:26px;height:24px;clip-path:var(--hex);background:var(--line-2)}
.ladder .dot::before{content:"";position:absolute;inset:2px 2.3px;clip-path:var(--hex);background:var(--bg-2)}
.result .ladder .dot::before{background:var(--card)}
.ladder li.done .dot,.ladder li.done .dot::before{background:var(--orange)}
.ladder li.done .dot::after{content:"";position:absolute;left:10px;top:5px;width:5px;height:10px;border:solid var(--orange-ink);border-width:0 2px 2px 0;transform:rotate(45deg)}
.ladder li.now .dot{background:var(--orange)}
.ladder li.now .dot::after{content:"";position:absolute;inset:7px 7.5px;clip-path:var(--hex);background:var(--orange)}
.ladder li.done::after{content:"";position:absolute;left:12px;top:25px;bottom:-1px;width:2px;background:var(--orange)}
.ladder li.done:last-child::after{display:none}
.ladder h3{font-size:1.0625rem}
.ladder p{color:var(--muted);font-size:.9375rem;margin-top:2px}
.ladder .free{display:inline-block;margin-left:8px;font-size:.8125rem;font-weight:600;color:var(--ink-2);border:1px solid var(--line-2);padding:0 8px;border-radius:999px;vertical-align:1px;line-height:1.6}
.ladder time{display:block;font-family:var(--mono);font-size:.8125rem;color:var(--muted);margin-top:2px}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;display:flex;flex-direction:column;gap:10px}
a.card{transition:border-color .2s,transform .15s var(--ease)}
a.card:hover{border-color:var(--line-2)}
a.card:active{transform:scale(.99)}
.card h3{font-size:1.1875rem}
.card p{color:var(--ink-2);font-size:1rem}
.card .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--neutral-soft);color:var(--ink);margin-bottom:6px}
.card .ico svg{width:22px;height:22px}
.card.photo{padding:0;overflow:hidden}
.card.photo img{width:100%;height:280px;object-fit:cover;filter:saturate(.85) contrast(1.05)}
.card.photo .txt{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px}
.card.wide{grid-column:span 2}

/* ---------- Pricing ---------- */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;display:flex;flex-direction:column}
.plan.hl{border-color:var(--line-2)}
.plan .label{font-family:var(--mono);font-size:.875rem;font-weight:600;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;line-height:1.4}
.price{font-size:clamp(2.75rem,6vw,3.75rem);font-weight:800;line-height:1;margin-top:14px;font-variant-numeric:tabular-nums;display:flex;align-items:baseline;flex-wrap:wrap;gap:0 6px}
.price small{font-size:1rem;color:var(--muted);font-weight:500}
.fine{color:var(--muted);font-size:.875rem;margin-top:10px}
.rates{width:100%;border-collapse:collapse;margin-top:14px;font-variant-numeric:tabular-nums}
.rates td{padding:12px 0;border-bottom:1px solid var(--line)}
.rates td:last-child{text-align:right;font-weight:700}
.rates tr.best td:last-child{color:var(--ink)}
.rates tr.best td{font-weight:700}
.plan .spacer{flex:1;min-height:20px}
.free-band{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.free-item{border:1px dashed var(--line-2);border-radius:var(--r-md);padding:20px 22px}
.free-item b{display:block;font-size:1.125rem}
.free-item b em{font-style:normal;color:var(--ink-2);font-weight:600}
.free-item span{display:block;color:var(--muted);font-size:.9375rem;margin-top:4px}

/* ---------- List / split ---------- */
.list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.list li{position:relative;padding-left:30px;color:var(--ink-2)}
.list li::before{content:"";position:absolute;left:1px;top:.4em;width:16px;height:14px;clip-path:var(--hex);background:var(--line-2)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split .title{margin-bottom:22px}
.split .photo img{border-radius:var(--r-lg);border:1px solid var(--line);filter:saturate(.85)}

/* ---------- Steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 20px 24px}
.step .n{font-family:var(--mono);font-size:.8125rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.step h3{font-size:1.0625rem;margin-top:8px}
.step p{color:var(--muted);font-size:.9375rem;margin-top:6px}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 44px 22px 0;font-weight:600;font-size:1.0625rem;position:relative;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:8px;top:17px;font-size:1.5rem;color:var(--muted);font-weight:400;transition:transform .2s}
.faq summary:hover::after{color:var(--ink)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 22px;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta{border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.cta .headline{margin:14px auto 0}

/* ---------- Page hero ---------- */
.page-hero{padding:72px 0 56px;border-bottom:1px solid var(--line)}
.page-hero.nf{padding:120px 0}
.crumbs{font-size:.875rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted);display:inline-block;padding:10px 0;margin:-10px 0}
.crumbs a:hover{color:var(--ink)}

/* ---------- Track page ---------- */
.track-form{display:flex;gap:10px;max-width:560px;margin-top:28px}
.track-form input{flex:1;min-width:0;height:56px;border-radius:14px;border:1px solid var(--line-2);background:var(--card);color:var(--ink);font-family:var(--mono);font-size:1.125rem;letter-spacing:.08em;padding:0 18px;text-transform:uppercase}
.track-form input::placeholder{color:var(--hint);letter-spacing:.04em}
.track-form input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 4px var(--orange-soft)}
.track-form .btn{height:56px;border-radius:14px;min-width:96px}
.result{margin-top:36px;max-width:720px}
.result-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.result-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;align-items:flex-start;padding-bottom:22px;margin-bottom:24px;border-bottom:1px solid var(--line)}
.result-head .code{font-family:var(--mono);font-size:1.375rem;font-weight:700;letter-spacing:.06em}
.status-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--orange-soft);color:var(--orange);font-weight:700;font-size:.9375rem}
.status-pill::before{content:"";width:10px;height:9px;clip-path:var(--hex);background:currentColor}
.keep{margin-top:22px;padding:16px 18px;border-radius:var(--r-md);background:var(--bg-2);border:1px solid var(--line);font-size:.9375rem;color:var(--ink-2)}
.keep b{color:var(--ink)}
.msg{margin-top:24px;padding:16px 18px;border-radius:var(--r-md);border:1px solid var(--line-2);color:var(--ink-2)}
.msg.err{border-color:rgba(255,90,31,.5);color:var(--ink)}

/* ---------- Contact ---------- */
.contacts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;display:flex;flex-direction:column;gap:6px;min-height:210px;transition:border-color .2s,transform .15s var(--ease)}
.contact:hover{border-color:var(--line-2)}
.contact:active{transform:scale(.99)}
.contact .k{color:var(--muted);font-size:.9375rem;margin-top:12px}
.contact strong{font-size:1.375rem;word-break:break-word}
.contact strong.email{font-size:1.0625rem;word-break:normal;overflow-wrap:anywhere}
.contact .go{margin-top:auto;padding-top:8px}
.contact .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--neutral-soft);color:var(--ink)}
.contact .ico svg{width:24px;height:24px}
.co-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 40px;max-width:760px;margin:0 auto}
.co-card .title{font-size:1.5rem}
.co-list{margin:12px 0 0;display:grid}
.co-list>div{display:grid;grid-template-columns:220px 1fr;gap:16px;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--line)}
.co-list>div:last-child{border-bottom:0}
.co-list dt{color:var(--muted);font-size:.9375rem}
.co-list dd{margin:0;font-weight:600}
.co-list dd.big{font-size:1.25rem;font-variant-numeric:tabular-nums}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--line);padding:56px 0 40px;font-size:.9375rem;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:32px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.foot .brand img{height:22px}
.foot h2{font-size:.8125rem;color:var(--ink-2);margin-bottom:10px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.foot ul a{color:var(--ink-2);display:inline-flex;align-items:center;min-height:40px}
.foot ul a:hover{color:#fff}
.foot .about{max-width:28em;margin-top:14px}
.foot .reg{margin:18px 0 0;display:grid;gap:10px}
.foot .reg dt{font-size:.8125rem;color:var(--muted)}
.foot .reg dd{margin:2px 0 0;color:var(--ink-2);font-size:.9375rem}
.foot .copy{padding-top:20px;font-size:.875rem}

/* ---------- Floating WhatsApp（只喺手機顯示，桌面已有導覽列按鈕） ---------- */
.fab{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));width:56px;height:56px;border-radius:50%;background:var(--orange);color:var(--orange-ink);display:none;place-items:center;box-shadow:0 10px 30px rgba(0,0,0,.45);z-index:40}
.fab svg{width:26px;height:26px}
.fab:hover{color:var(--orange-ink)}
.fab:active{transform:scale(.94)}

/* ---------- Reveal ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps li:last-child{grid-column:span 2}
}
@media (max-width:900px){
  .hero .wrap-wide,.ladder-wrap,.split{grid-template-columns:1fr;gap:40px}
  .hero-art img{margin:0 auto;max-width:440px}
  .cards,.contacts,.free-band{grid-template-columns:1fr}
  .card.wide{grid-column:auto}
  .card.photo img{height:200px}
  .plans{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-grid>div:first-child{grid-column:1/-1}
  .tag{margin:0 auto}
}
@media (max-width:860px){
  .menu-toggle{display:block}
  .menu{position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px 16px 18px;background:var(--bg);box-shadow:0 24px 40px rgba(0,0,0,.5);border-bottom:1px solid var(--line);display:none}
  .menu.open{display:flex}
  .menu a{min-height:48px;font-size:1.0625rem}
  .menu .menu-cta{margin:10px 0 0}
  .menu .menu-cta .btn{width:100%;min-height:48px}
  .fab{display:grid}
  .sec{padding:72px 0}
  .hero{padding:48px 0 56px}
  .sec-track{padding-top:40px}
}
@media (max-width:520px){
  .wrap,.wrap-wide,.nav-in{padding-left:16px;padding-right:16px}
  .brand img{height:21px}
  .nav-end{gap:4px}
  .steps{grid-template-columns:1fr}
  .steps li:last-child{grid-column:auto}
  .track-form{flex-direction:column}
  .track-form input{flex:none;width:100%}
  .foot-grid{grid-template-columns:1fr}
  .co-card{padding:26px 22px}
  .co-list>div{grid-template-columns:1fr;gap:4px}
  .tag{padding:20px}
  .tag .qr{width:96px;height:96px}
}
@media (max-width:360px){
  .brand img{height:18px}
  .lang>*{min-width:36px;padding:0 8px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .btn,.fab,.card,.contact,.menu-toggle span,.menu-toggle span::before{transition:none}
  .btn:active,.fab:active,a.card:active,.contact:active{transform:none}
}
@media (prefers-reduced-transparency:reduce){
  .nav{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
  .menu{background:var(--bg)}
}
@media (prefers-contrast:more){
  :root{--line:rgba(255,255,255,.22);--line-2:rgba(255,255,255,.4);--muted:#c2c2c8;--ink-2:#e2e2e6;--hint:#a8a8b0}
}
@media print{
  .nav,.fab,.foot,.cta{display:none}
  body{background:#fff;color:#000}
}
#panel .card{min-width:0}

/* ================= 高級定位：更多留白、少框框、細線分隔 ================= */
.privileges{list-style:none;margin:40px 0 0;padding:24px 0 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px 28px}
.privileges li{font-size:.9375rem;color:var(--ink-2);padding-left:12px;border-left:2px solid var(--orange);line-height:1.35}

.features{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 48px}
.feature{padding:28px 0 36px;border-top:1px solid var(--line-2)}
.feature .ico{width:28px;height:28px;color:var(--muted);margin-bottom:18px}
.feature .ico svg{width:28px;height:28px}
.feature h3{font-size:1.1875rem;font-weight:600}
.feature p{color:var(--ink-2);margin-top:8px;font-size:1rem}
.sec-note{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:.9375rem;max-width:52em}

.quote-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:56px}
.quote-panel .sub{max-width:30em}
.quote-panel .incl{padding-left:48px;border-left:1px solid var(--line)}
.quote-panel .incl h3{font-family:var(--mono);font-size:.875rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.quote-panel .list{gap:14px}

.steps .step{background:none;border:0;border-top:1px solid var(--line-2);border-radius:0;padding:22px 0 0}
.steps .step h3{font-weight:600}
.steps{gap:24px}
.faq-wrap .faq{max-width:none;margin:0}
.cta{padding:136px 0}

@media (max-width:900px){
  .features,.features-3{grid-template-columns:1fr 1fr}
  .quote-panel{grid-template-columns:1fr;gap:40px;padding:36px 28px}
  .quote-panel .incl{padding:32px 0 0;border-left:0;border-top:1px solid var(--line)}
}
@media (max-width:860px){
  .sec{padding:88px 0}
  .cta{padding:96px 0}
}
@media (max-width:600px){
  .features,.features-3{grid-template-columns:1fr;gap:0}
  .feature{padding:24px 0 28px}
  .privileges{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}

  .quote-panel{padding:28px 22px}
}