:root{--brand:#0b4f8a;--brand-d:#0a2c4d;--brand-l:#e8f1fa;--accent:#f6b40e;--accent-d:#d99a00;--ink:#1b2430;--muted:#556273;--line:#e3e8ef;--bg:#f4f7fb;--r:14px;--sh:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.08);
--font:system-ui,-apple-system,"PingFang TC","Noto Sans TC","Microsoft JhengHei","Heiti TC","Source Han Sans TC",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:#fff;line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}picture{display:contents}
a{color:var(--brand)}a:hover{color:var(--brand-d)}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em;letter-spacing:.02em}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700;line-height:1.2;transition:background .15s,color .15s,border-color .15s;white-space:nowrap}
.btn-lg{padding:14px 24px;font-size:1.05rem}
.btn-accent{background:var(--accent);color:#1b1400}.btn-accent:hover{background:var(--accent-d);color:#1b1400}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-d);color:#fff}
.btn-outline{border-color:var(--brand);color:var(--brand);background:#fff}.btn-outline:hover{background:var(--brand);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.85);color:#fff;background:rgba(255,255,255,.06)}.btn-ghost:hover{background:#fff;color:var(--brand-d)}
.btn-tel{color:var(--brand-d);padding:8px 10px}.btn-tel:hover{background:var(--brand-l)}
/* topbar + header */
.topbar{background:var(--brand-d);color:#cfe0f1;font-size:.82rem}.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding:6px 20px}.topbar a{color:#fff;text-decoration:none}
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:20px;height:72px}
.logo img{height:40px;width:auto}
.nav{margin-left:auto}.nav-l1{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
.nav-l1>li>a,.sub-btn{display:block;padding:10px 14px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600;background:none;border:0;font:inherit;font-weight:600;cursor:pointer}
.nav-l1>li>a:hover,.sub-btn:hover,.nav-l1>li>a[aria-current]{color:var(--brand);background:var(--brand-l)}
.caret{display:inline-block;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-left:8px;vertical-align:3px}
.has-sub{position:relative}
.sub{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:18px;display:none;grid-template-columns:repeat(2,minmax(120px,1fr));gap:8px 24px;min-width:340px}
.has-sub:hover .sub,.has-sub:focus-within .sub,.has-sub.open .sub{display:grid}
.sub-h{margin:0 0 4px;font-size:.78rem;color:var(--muted);font-weight:700;letter-spacing:.08em}
.sub ul{list-style:none;margin:0;padding:0}.sub li a{display:block;padding:5px 8px;border-radius:8px;text-decoration:none;color:var(--ink)}.sub li a:hover{background:var(--brand-l);color:var(--brand)}
.sub-all{grid-column:1/-1;border-top:1px solid var(--line);padding-top:10px}.sub-all a{font-weight:700;text-decoration:none}
.hdr-cta{display:flex;align-items:center;gap:8px}
.burger{display:none;width:44px;height:44px;border:0;background:none;padding:10px;cursor:pointer}.burger span{display:block;height:2px;background:var(--ink);margin:6px 0;border-radius:2px;transition:.2s}
/* hero */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--brand-d)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,30,54,.92) 0%,rgba(9,44,80,.78) 45%,rgba(9,44,80,.25) 100%)}
.hero-in{position:relative;z-index:1;padding:96px 20px 64px;max-width:1200px}
.eyebrow{display:inline-block;margin:0 0 14px;padding:4px 12px;border:1px solid rgba(255,255,255,.4);border-radius:999px;font-size:.85rem;letter-spacing:.08em}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:800;margin:0 0 14px}.hero h1 span{display:block;font-size:.45em;font-weight:700;color:var(--accent);letter-spacing:.12em;margin-top:8px}
.lead{font-size:clamp(1rem,1.6vw,1.2rem);max-width:640px;color:#e6eef7;margin:0 0 28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:44px}
.facts{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;max-width:860px}
.facts li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:14px 16px;backdrop-filter:blur(4px)}
.facts b{display:block;font-size:1.35rem;color:#fff}.facts span{font-size:.88rem;color:#d4e2f0}
/* sections */
.sec{padding:80px 0}.sec-alt{background:var(--bg)}
.sec-h{max-width:720px;margin:0 auto 40px;text-align:center}.sec-h h2{font-size:clamp(1.7rem,3vw,2.3rem)}.sec-h p{color:var(--muted);margin:0}
.kicker{color:var(--brand);font-weight:800;letter-spacing:.2em;font-size:.8rem;margin:0 0 6px}
.center{text-align:center}.pad{padding:40px 20px 80px}.muted{color:var(--muted)}
.group{margin-bottom:48px}.group-h{display:flex;align-items:baseline;justify-content:space-between;border-bottom:2px solid var(--line);margin-bottom:20px}
.group-h h2,.group-h h3{font-size:1.35rem;margin:0 0 10px}.group-h small{font-size:.9rem;color:var(--muted);font-weight:600;margin-left:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh)}
.card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.card-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:linear-gradient(180deg,#f7f9fc,#edf2f8);display:flex;align-items:center;justify-content:center;padding:14px}
.card-img picture{position:absolute;inset:14px;display:block}.card-img img{width:100%;height:100%;object-fit:contain}
.card-body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:4px;flex:1}
.card-title{font-size:1.25rem;margin:2px 0}.card-spec{margin:0;color:var(--muted);font-size:.9rem}.card-lids{margin:0;color:var(--muted);font-size:.85rem}
.card-more{margin-top:auto;padding-top:8px;color:var(--brand);font-weight:700;font-size:.92rem}
.tag{display:inline-block;align-self:flex-start;font-size:.75rem;font-weight:700;color:var(--brand);background:var(--brand-l);padding:2px 10px;border-radius:999px}
.feat{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.feat-i{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}.feat-i h3{font-size:1.15rem}.feat-i p{margin:0;color:var(--muted);font-size:.95rem}
.ico{width:48px;height:48px;border-radius:12px;background:var(--brand-l);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px}.ico svg{width:26px;height:26px}
.media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.media{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.yt,.media-photo{position:relative;display:block;width:100%;aspect-ratio:16/10;border:0;padding:0;background:#000;cursor:pointer;overflow:hidden}
.yt img,.media-photo img,.yt iframe{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border:0}
.media-photo{cursor:default;background:#eef2f7}
.play{position:absolute;left:50%;top:50%;width:68px;height:48px;margin:-24px 0 0 -34px;background:rgba(220,0,0,.9);border-radius:12px}
.play::after{content:"";position:absolute;left:28px;top:14px;border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent}
.yt:hover .play{background:#f00}
.media figcaption{padding:12px 16px}.media-t{font-size:1rem;margin:0}
.about{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}.about h2{font-size:clamp(1.7rem,3vw,2.2rem)}
.checks{list-style:none;padding:0;margin:20px 0 28px}.checks li{position:relative;padding-left:30px;margin:10px 0}
.checks li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/14px no-repeat}
.info{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:8px 24px;box-shadow:var(--sh)}
.info div{display:grid;grid-template-columns:90px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.info div:last-child{border:0}
.info dt{color:var(--muted);font-weight:700}.info dd{margin:0;font-weight:600}
.cta-band{background:linear-gradient(120deg,var(--brand-d),var(--brand));color:#fff}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:48px 20px;flex-wrap:wrap}.cta-in h2{font-size:1.7rem;margin:0 0 4px}.cta-in p{margin:0;color:#d7e5f3}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap}
.ftr{background:#0a1f36;color:#b9c8d8;font-size:.92rem}.ftr a{color:#fff}
.ftr-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding:56px 20px 32px}
.ftr-co{color:#fff;font-weight:800;font-size:1.1rem;margin-top:0}.ftr-h{color:#fff;font-weight:700;margin-top:0}
.ftr-list{list-style:none;margin:0;padding:0}.ftr-list li{margin:4px 0}.ftr-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:0 12px}.ftr-cols a{text-decoration:none}
.ftr-bottom{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);padding:16px 20px 24px;font-size:.85rem}
.fab{display:none}
/* page head, crumbs, catnav */
.phead{background:linear-gradient(120deg,var(--brand-d),var(--brand));color:#fff;padding:48px 0 40px}.phead h1{font-size:clamp(1.9rem,4vw,2.6rem);margin:0}.phead p{margin:6px 0 0;color:#d7e5f3}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:16px 0;font-size:.88rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#9aa6b5}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--brand)}
.catnav ul{list-style:none;margin:0 0 28px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.catnav a{display:block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.92rem;background:#fff}
.catnav a:hover{border-color:var(--brand);color:var(--brand)}.catnav a[aria-current]{background:var(--brand);border-color:var(--brand);color:#fff}
.phead+.wrap{padding-bottom:72px}
/* feature (capacity pages) */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--sh)}
.feature-img{display:flex;justify-content:center;background:linear-gradient(180deg,#f7f9fc,#edf2f8);border-radius:14px;padding:20px}
.feature-body h2{font-size:2rem;margin:8px 0 12px}.feature-body h2 a{text-decoration:none;color:var(--ink)}
.kv{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:8px}.kv li{display:flex;gap:12px;padding:10px 14px;background:var(--bg);border-radius:10px}.kv b{min-width:76px;color:var(--muted)}
/* product detail */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;padding-bottom:64px}
.back{display:inline-block;margin-bottom:12px;color:var(--muted);text-decoration:none;font-weight:600}.back:hover{color:var(--brand)}
.pd-main{background:linear-gradient(180deg,#f7f9fc,#edf2f8);border:1px solid var(--line);border-radius:18px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:24px}
.pd-main img{max-height:100%;width:auto;object-fit:contain}
.thumbs{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0;padding:0}
.thumb{width:76px;height:76px;padding:4px;border:2px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.thumb img{max-height:100%;object-fit:contain}.thumb.on,.thumb:hover{border-color:var(--brand)}
.pd-info h1{font-size:clamp(2rem,4vw,2.8rem);margin:10px 0 18px}
.h3s{font-size:1.05rem;margin:22px 0 10px;color:var(--brand-d)}
.spec{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec th,.spec td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}.spec th{width:120px;background:var(--bg);color:var(--muted);font-weight:700}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.chips li{padding:6px 12px;background:var(--brand-l);color:var(--brand-d);border-radius:8px;font-weight:600;font-size:.92rem}
.prose p{margin:.3em 0}.prose h2{margin-top:18px}
.pd-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.note{color:var(--muted);font-size:.9rem;margin-top:12px}
.h2s{font-size:1.5rem;margin-bottom:20px}
/* contact */
.contact{padding-top:32px;padding-bottom:72px}
.c-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:32px}
.c-card{display:flex;flex-direction:column;gap:2px;padding:20px;border:1px solid var(--line);border-radius:var(--r);background:#fff;text-decoration:none;color:var(--ink);box-shadow:0 1px 2px rgba(16,24,40,.05)}
a.c-card:hover{border-color:var(--brand)}.c-k{font-size:.8rem;font-weight:800;letter-spacing:.1em;color:var(--brand)}.c-v{font-size:1.15rem;font-weight:700;overflow-wrap:anywhere}.c-mail{font-size:1rem}.c-h{font-size:.82rem;color:var(--muted)}
.c-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:32px}
.form,.map{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--sh)}
.form h2,.map h2{font-size:1.4rem}
.f-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.f-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.f-row label{font-weight:700;font-size:.92rem}
.f-row input,.f-row textarea,.f-row select{font:inherit;padding:12px 14px;border:1px solid #c9d2de;border-radius:10px;background:#fff;color:var(--ink);width:100%}
.f-row input:focus,.f-row textarea:focus,.f-row select:focus{border-color:var(--brand);outline:3px solid rgba(11,79,138,.18)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.map iframe{width:100%;height:340px;border:0;border-radius:12px;margin:6px 0 14px}
/* responsive */
@media (max-width:1024px){.feat{grid-template-columns:repeat(2,1fr)}.btn-tel span{display:none}}
@media (max-width:900px){
 .topbar{display:none}.hdr-in{height:62px}.logo img{height:32px}
 .burger{display:block}.hide-sm{display:none}.btn-tel span{display:none}
 .nav{position:fixed;top:62px;left:0;right:0;bottom:0;background:#fff;overflow:auto;padding:12px 20px 40px;display:none;margin:0}
 .nav.open{display:block}.nav-l1{flex-direction:column;align-items:stretch}.nav-l1>li>a,.sub-btn{padding:14px 8px;font-size:1.08rem;width:100%;text-align:left;border-bottom:1px solid var(--line);border-radius:0}
 .sub{position:static;transform:none;box-shadow:none;border:0;padding:8px 0 12px 8px;min-width:0;display:none}.has-sub:hover .sub,.has-sub:focus-within .sub{display:none}.has-sub.open .sub{display:grid}
 .burger[aria-expanded=true] span:nth-child(1){transform:translateY(8px) rotate(45deg)}.burger[aria-expanded=true] span:nth-child(2){opacity:0}.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
 .hero-in{padding:64px 20px 44px}.facts{grid-template-columns:repeat(2,1fr)}
 .sec{padding:56px 0}.media-grid{grid-template-columns:1fr 1fr}.about,.pd,.feature,.c-grid{grid-template-columns:1fr;gap:28px}
 .c-cards{grid-template-columns:1fr 1fr}.ftr-grid{grid-template-columns:1fr;gap:28px}
 .fab{display:flex;position:fixed;right:16px;bottom:16px;z-index:40;align-items:center;gap:8px;background:var(--accent);color:#1b1400;font-weight:800;padding:12px 18px;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.25);text-decoration:none}
 .ftr-bottom{padding-bottom:84px}
}
@media (max-width:560px){.grid{grid-template-columns:1fr 1fr;gap:12px}.card-body{padding:10px 12px 14px}.card-title{font-size:1.1rem}.card-spec,.card-lids{font-size:.8rem}
 .media-grid,.feat{grid-template-columns:1fr}.f-2{grid-template-columns:1fr}.c-cards{grid-template-columns:1fr}.feature{padding:16px}.feature-body h2{font-size:1.6rem}
 .hero-btns .btn{flex:1 1 100%;justify-content:center}.cta-btns{width:100%}.cta-btns .btn{flex:1 1 100%;justify-content:center}.facts b{font-size:1.15rem}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.credit{margin-left:12px;opacity:.6;font-size:.78rem}.credit a{color:inherit;text-decoration:none}.credit a:hover,.credit a:focus-visible{text-decoration:underline}