/* =========================================================
   Otonology 內頁共用樣式（沿用方向 D 視覺語言）
   給 about / products / product-* / articles / downloads / contact 使用
   ========================================================= */
:root{
  --ink:#22272E; --ink-900:#191D23; --ink-800:#1A1F26; --teal:#1ED6C8; --teal-700:#13A99E; --teal-300:#5FE9DE;
  --paper:#F2F0E6; --white:#fff; --muted:#8A93A0; --border:#2C333B; --line:#e3e0d3;
  --grad:linear-gradient(90deg,#13A99E 0%,#1ED6C8 50%,#5FE9DE 100%);
  --radius:16px; --max:1180px; --mono:"JetBrains Mono",monospace;
  /* 環境部 PM2.5/AQI 顏色 */
  --aqi-green:#00B050; --aqi-yellow:#F2C400; --aqi-orange:#FF7E00; --aqi-red:#FF2D2D;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter","Noto Sans TC",system-ui,"PingFang TC","Microsoft JhengHei",sans-serif;
  font-size:17px;line-height:1.7;color:var(--ink);background:var(--paper);overflow-x:hidden}
h1,h2,h3,h4{font-family:"Poppins","Noto Sans TC",sans-serif;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.2rem);line-height:1.1}
h2{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.18}
h3{font-size:clamp(1.18rem,3vw,1.4rem)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
.tag-mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-700)}
.accent-bar{display:inline-block;width:50px;height:3px;border-radius:3px;background:var(--grad);margin-bottom:18px}
a{color:var(--teal-700)}a:hover{color:var(--teal)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border:none;border-radius:999px;padding:14px 28px;
  font-family:"Poppins","Noto Sans TC",sans-serif;font-weight:600;font-size:1rem;cursor:pointer;text-decoration:none;
  transition:transform .15s,box-shadow .15s}
.btn-primary{background:var(--grad);color:#0E1419}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(30,214,200,.32)}
.btn-ghost{background:transparent;color:var(--teal);border:1px solid var(--teal)}
.btn-ghost:hover{background:rgba(30,214,200,.12)}
.btn-light{background:var(--paper);color:var(--ink)}

.preview-note{background:#0E1419;color:var(--teal);text-align:center;font-size:.8rem;padding:8px}

/* ===== nav ===== */
header.nav{position:sticky;top:0;z-index:50;background:rgba(25,29,35,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand img{height:44px;border-radius:6px;display:block}
header.nav .brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
header.nav .brand::after{content:"維碩科技";color:#fff;font-family:"Poppins","Noto Sans TC",sans-serif;
  font-weight:600;font-size:1.06rem;letter-spacing:.02em;line-height:1;padding-left:12px;border-left:1px solid rgba(255,255,255,.28)}
@media(max-width:480px){header.nav .brand::after{display:none}}
.menu{display:flex;gap:24px;list-style:none}
.menu a{color:#fff;text-decoration:none;font-size:.95rem;font-weight:500;opacity:.9}
.menu a:hover,.menu a.active{color:var(--teal);opacity:1}
.nav-right{display:flex;align-items:center;gap:16px}
.lang{color:#cdd2d8;font-size:.85rem}.lang b{color:#fff}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer}

/* ===== interior page hero ===== */
.page-hero{position:relative;background:var(--ink);color:#fff;padding:84px 0 72px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(44,51,59,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(44,51,59,.5) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 78% 0,#000,transparent 72%)}
.page-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,214,200,.22),transparent 70%)}
.page-hero .inner{position:relative;z-index:2;max-width:720px}
.page-hero .eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
.page-hero p{color:#c2c8cf;margin-top:16px;font-size:1.12rem;max-width:52ch}
.crumbs{position:relative;z-index:2;font-family:var(--mono);font-size:.78rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--teal)}

/* ===== sections ===== */
section{padding:84px 0}
.section-head{max-width:62ch;margin:0 auto 44px;text-align:center}
.section-head p{color:#5a636d}
.dark{background:var(--ink);color:var(--paper)}
.dark .section-head p{color:#aab0b8}.dark .tag-mono{color:var(--teal)}
.paper2{background:#ECEAE0}
.lead{font-size:1.12rem;color:#444c54;max-width:60ch}

/* grids & cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(30,214,200,.16)}
.card h3{color:var(--ink-900);margin-bottom:8px}.card p{color:#55606b;font-size:.96rem}
.card .ico{width:50px;height:50px;border-radius:13px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ico svg{width:25px;height:25px;stroke:#0E1419;fill:none;stroke-width:2}
.card .more{margin-top:14px;display:inline-block;color:var(--teal-700);font-weight:600;text-decoration:none}
.card.dark{background:rgba(34,39,46,.6);border-color:var(--border)}
.card.dark h3{color:#fff}.card.dark p{color:#aab0b8}

/* spec list */
.spec{list-style:none;margin-top:12px}
.spec li{display:flex;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:.94rem;color:#44505a}
.spec li b{font-family:var(--mono);color:var(--teal-700);min-width:84px;font-weight:700}
.badge-new{display:inline-block;font-family:var(--mono);font-size:.7rem;background:var(--grad);color:#0E1419;border-radius:6px;padding:3px 8px;margin-left:8px;font-weight:700;vertical-align:middle}

/* feature pills */
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pill{font-size:.86rem;background:rgba(30,214,200,.1);border:1px solid rgba(30,214,200,.3);color:var(--teal-700);border-radius:999px;padding:7px 14px}
.dark .pill{color:var(--teal-300);background:rgba(30,214,200,.08)}

/* purpose band */
.purpose{background:var(--ink);color:var(--paper);text-align:center;padding:80px 0}
.purpose .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.purpose p{color:#aab0b8;max-width:54ch;margin:18px auto 0}

/* case grid (carwash) */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .18s,box-shadow .18s}
.case:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(30,214,200,.16)}
.case img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.case .meta{padding:14px 16px}
.case .loc{font-weight:700;color:var(--ink-900)}
.case .org{font-size:.84rem;color:var(--muted);margin-top:3px}

/* media helpers */
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;display:block;margin-bottom:16px;background:#0E1419}
.prod-shot{width:100%;aspect-ratio:4/3;object-fit:contain;background:linear-gradient(160deg,#1A1F26,#0E1419);border-radius:12px;display:block;margin-bottom:16px;padding:14px}

/* hero with featured product image */
.hero-2{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative;z-index:2}
.hero-2 .inner{max-width:none}
.hero-shot{position:relative;background:#fff;border:1px solid rgba(255,255,255,.6);border-radius:20px;padding:14px;box-shadow:0 30px 70px rgba(0,0,0,.4)}
.hero-shot::after{content:"";position:absolute;right:-30px;top:-30px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(30,214,200,.35),transparent 70%);pointer-events:none;z-index:-1}
.hero-shot img{width:100%;border-radius:12px;display:block;position:relative}
@media(max-width:1024px){.hero-2{grid-template-columns:1fr;gap:32px}}

/* per-model showcase panels */
.model{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:20px;padding:34px;margin-bottom:22px;
  box-shadow:0 4px 20px rgba(0,0,0,.05);transition:transform .18s,box-shadow .18s}
.model:hover{transform:translateY(-3px);box-shadow:0 20px 48px rgba(30,214,200,.14)}
.model:nth-of-type(even) .txt{order:2}
.model .idx{font-family:var(--mono);font-weight:700;font-size:.78rem;color:var(--teal-700);letter-spacing:.14em;margin-bottom:8px}
.model .name{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.model .name h3{font-size:clamp(1.5rem,3.5vw,2rem);color:var(--ink-900)}
.model .sub{color:#5a636d;font-weight:600;margin:6px 0 14px}
.dim-chip{display:inline-block;font-family:var(--mono);font-size:.72rem;background:rgba(30,214,200,.12);color:var(--teal-700);border:1px solid rgba(30,214,200,.3);border-radius:999px;padding:4px 11px}
.model .media{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;
  box-shadow:0 12px 30px rgba(0,0,0,.08);display:flex;align-items:center;justify-content:center}
.model .media img{width:100%;height:auto;object-fit:contain;display:block;border-radius:10px}
.model .media .ph{color:#9aa3ad;font-family:var(--mono);font-size:.8rem;text-align:center;padding:48px 0}

/* 功能特色清單 */
.feat{list-style:none;margin-top:14px;display:grid;gap:8px}
.feat li{position:relative;padding-left:24px;font-size:.93rem;color:#44505a;line-height:1.5}
.feat li::before{content:"✓";position:absolute;left:0;top:0;color:var(--teal-700);font-weight:800}
.feat-title{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-700);margin:18px 0 4px}
/* SAL375 雲端月租加值 */
.cloud-box{margin-top:18px;border:1px solid var(--line);border-radius:14px;padding:20px;background:linear-gradient(160deg,#ffffff,#f7f6ef)}
.cloud-box .lab{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#0E1419;background:var(--grad);border-radius:6px;padding:4px 10px;margin-bottom:14px;font-weight:700}
.cloud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cloud-grid h5{font-family:"Poppins","Noto Sans TC";font-size:.95rem;color:var(--ink-900);margin-bottom:8px}
.cloud-grid .feat{margin-top:0}
.cloud-grid .feat li{font-size:.88rem}
@media(max-width:768px){.cloud-grid{grid-template-columns:1fr;gap:14px}}
@media(max-width:768px){
  .model{grid-template-columns:1fr;gap:20px;padding:22px}
  .model .media{order:-1}.model:nth-of-type(even) .txt{order:0}
}

/* spec comparison table */
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line)}
.cmp{width:100%;border-collapse:collapse;background:var(--white);font-size:.92rem;min-width:680px}
.cmp th,.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.cmp thead th{background:var(--ink);color:#fff;font-family:"Poppins","Noto Sans TC";font-weight:600;position:sticky;top:0}
.cmp thead th:first-child{border-top-left-radius:0}
.cmp tbody td:first-child{font-weight:700;color:var(--ink-900)}
.cmp tbody tr:nth-child(even){background:#faf9f3}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp .hl{color:var(--teal-700);font-weight:700}
.feature-img{width:100%;border-radius:var(--radius);display:block;box-shadow:0 16px 40px rgba(0,0,0,.18)}
.led-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.led-gallery figure{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.led-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:#0E1419}
.led-gallery figcaption{padding:12px 14px;font-size:.88rem;color:#44505a;font-weight:600}
@media(max-width:768px){.led-gallery{grid-template-columns:1fr}}

/* downloads */
.dl{display:flex;align-items:center;gap:18px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin-bottom:14px}
.dl .ic{width:46px;height:46px;border-radius:11px;background:rgba(30,214,200,.12);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.dl .ic svg{width:24px;height:24px;stroke:var(--teal-700);fill:none;stroke-width:2}
.dl .meta{flex:1}.dl .meta h3{font-size:1.05rem;color:var(--ink-900)}
.dl .meta small{color:var(--muted);font-family:var(--mono);font-size:.76rem}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.info-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-row .ic{width:42px;height:42px;border-radius:11px;background:var(--grad);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.info-row .ic svg{width:21px;height:21px;stroke:#0E1419;fill:none;stroke-width:2}
.info-row .t small{display:block;color:var(--muted);font-size:.8rem}
.info-row .t b{font-size:1.05rem}
.form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.form label{display:block;font-size:.88rem;font-weight:600;margin:14px 0 6px;color:#44505a}
.form input,.form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-size:.95rem}
.form input:focus,.form textarea:focus{outline:2px solid var(--teal-300);border-color:var(--teal)}
.map{height:260px;border-radius:14px;overflow:hidden;border:1px solid var(--line);margin-top:24px}
.map iframe{width:100%;height:100%;border:0}

/* CTA band + footer */
.cta-band{background:var(--grad);color:#0E1419;text-align:center;padding:72px 0}
.cta-band h2{color:#0E1419}.cta-band .btn-dark{background:var(--ink-900);color:var(--paper);margin-top:22px}
.cta-band .btn-dark:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.28)}
footer{background:var(--ink-900);color:var(--paper);padding:58px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
footer h4{font-family:"Poppins";font-size:1rem;margin-bottom:16px}
footer a,footer p{color:#aab0b8;text-decoration:none;font-size:.92rem;display:block;margin-bottom:9px}
footer a:hover{color:var(--teal)}
.foot-bottom{border-top:1px solid var(--border);margin-top:34px;padding-top:20px;text-align:center;color:var(--muted);font-size:.84rem}

/* RWD */
@media(max-width:1024px){.grid-3,.cases{grid-template-columns:repeat(2,1fr)}.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){
  section,.purpose{padding:52px 0}.page-hero{padding:60px 0 48px}
  .menu{display:none}.hamburger{display:block}
  .grid-3,.grid-2,.cases,.contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .menu.open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;background:var(--ink-900);padding:20px 24px;gap:18px}
}

/* 社群圖示 */
.nav .social-ic{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:#1877F2;color:#fff;text-decoration:none;transition:background .15s,color .15s,border-color .15s}.nav .social-ic:hover{filter:brightness(1.1)}.nav .social-ic svg{width:18px;height:18px;fill:currentColor}@media(max-width:768px){.nav .social-ic{width:32px;height:32px}}

.nav .line-btn{display:inline-flex;align-items:center}.nav .line-btn img{height:34px;display:block;border-radius:6px}