:root{
    --bg:#0b0b0c;
    --bg-soft:#141310;
    --card:#1a1814;
    --line:#332e25;
    --text:#ece7dd;
    --muted:#a59c8c;
    --accent:#c79a5b;
    --accent-2:#e6c585;
    --warn:#c79a5b;
    --ink:#11100c;
    --radius:6px;
    --shadow:0 10px 34px rgba(0,0,0,.5);
    --serif:"Noto Serif TC","Songti TC","PingFang TC",serif;
    --display:"Saira","Noto Sans TC",system-ui,sans-serif;
    --max:1180px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,-apple-system,sans-serif;
    background:var(--bg);color:var(--text);line-height:1.65;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
  .accent{color:var(--accent)}
  /* 黑金主題：襯線標題 + 工程感英文標籤 */
  h1,h2,.featured-info h2,.pd-info h1,.about h2,.section-head h2,.coach-card blockquote,.hero h1{
    font-family:var(--serif);font-weight:700;letter-spacing:.5px}
  .eyebrow,.section-head .eyebrow{font-family:var(--display);text-transform:uppercase;letter-spacing:3px;font-weight:600}
  .logo,.hero-stats .s b,.cart-count{font-family:var(--display)}
  .btn{
    display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;
    font-family:inherit;font-weight:700;font-size:14px;letter-spacing:1px;padding:13px 26px;border-radius:2px;
    background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--ink);
    transition:.18s transform,.18s filter,.18s box-shadow;
  }
  .btn:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 8px 22px rgba(199,154,91,.28)}
  .btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line);box-shadow:none}
  .btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
  .btn.sm{padding:10px 18px;font-size:13px}

  /* Header */
  header{
    position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
    background:rgba(11,11,12,.85);border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{display:flex;align-items:center;gap:10px}
  .logo img{height:30px;width:auto;display:block}
  footer .logo img{height:34px}
  .nav-links{display:flex;gap:26px;align-items:center}
  .nav-links a{color:var(--muted);font-weight:600;font-size:15px;transition:.15s}
  .nav-links a:hover{color:var(--text)}
  .cart-btn{position:relative;background:var(--bg-soft);border:1px solid var(--line);color:var(--text);
    width:44px;height:44px;border-radius:12px;cursor:pointer;display:grid;place-items:center;font-size:19px}
  .cart-btn:hover{border-color:var(--accent)}
  .cart-count{
    position:absolute;top:-6px;right:-6px;background:var(--accent);color:var(--ink);
    min-width:20px;height:20px;border-radius:999px;font-size:12px;font-weight:800;
    display:grid;place-items:center;padding:0 5px;
  }
  .menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer}

  /* Hero：全幅背景照＋壓暗 */
  .hero{position:relative;overflow:hidden;padding:120px 0 96px;min-height:min(78vh,760px);display:flex;align-items:center;
    background:#0b0a09;}
  /* 背景獨立一層，才能只推背景不推文字：進場 20 秒極慢收束，不是輪播 */
  .hero-bg{position:absolute;inset:0;z-index:0;
    background:url("../img/hero-bg.jpg") center 42%/cover no-repeat;
    transform-origin:62% 46%;animation:heroDrift 20s cubic-bezier(.16,.7,.3,1) both}
  @keyframes heroDrift{from{transform:scale(1.07)}to{transform:scale(1)}}
  @media (prefers-reduced-motion:reduce){.hero-bg{animation:none}}
  .hero::before{content:"";position:absolute;inset:0;z-index:1;
    background:
      linear-gradient(90deg,rgba(11,10,9,.88) 0%,rgba(11,10,9,.72) 38%,rgba(11,10,9,.28) 70%,rgba(11,10,9,.15) 100%),
      linear-gradient(180deg,rgba(11,10,9,.55) 0%,rgba(11,10,9,0) 30%,rgba(11,10,9,.25) 75%,var(--bg) 100%);}
  .hero::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
    background:radial-gradient(900px 420px at 15% 30%,rgba(199,154,91,.14),transparent 60%);}
  .hero .wrap{position:relative;z-index:2}
  .hero-grid{display:grid;grid-template-columns:minmax(0,640px) 1fr;gap:46px;align-items:center}
  .badge{display:inline-flex;align-items:center;gap:8px;background:rgba(11,10,9,.35);backdrop-filter:blur(4px);
    border:1px solid rgba(199,154,91,.55);color:var(--accent);font-family:var(--display);
    text-transform:uppercase;letter-spacing:2.5px;font-weight:600;font-size:12px;
    padding:8px 16px;border-radius:2px;margin-bottom:22px}
  .hero h1{font-size:clamp(42px,7.4vw,86px);line-height:1.08;letter-spacing:-1px;font-weight:700;text-shadow:0 2px 24px rgba(0,0,0,.55)}
  .hero p.lead{color:rgba(240,234,224,.82);font-size:clamp(15px,1.5vw,17px);font-weight:400;margin:20px 0 34px;max-width:440px;line-height:1.85;text-shadow:0 1px 12px rgba(0,0,0,.6)}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap}
  .hero-stats{display:flex;gap:30px;margin-top:38px;flex-wrap:wrap}
  .hero-stats .s b{font-size:26px;font-weight:800;color:var(--text);text-shadow:0 1px 12px rgba(0,0,0,.6)}
  .hero-stats .s span{display:block;color:rgba(240,235,226,.7);font-size:13px}
  .hero-visual{display:none}
  .hero-scroll{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:2;color:rgba(240,235,226,.55);font-size:11px;letter-spacing:3px;text-transform:uppercase;font-family:var(--display)}
  .hero-scroll::after{content:"";display:block;width:1px;height:34px;margin:8px auto 0;background:linear-gradient(180deg,var(--accent),transparent)}
  @media (max-width:900px){
    .hero{padding:96px 0 80px;min-height:auto}
    .hero-bg{background-image:url("../img/hero-bg-mobile.jpg");background-position:center 30%}
    .hero::before{background:linear-gradient(180deg,rgba(11,10,9,.62) 0%,rgba(11,10,9,.55) 45%,rgba(11,10,9,.9) 100%)}
    .hero-grid{grid-template-columns:1fr}
  }

  /* Featured product */
  .featured{background:
    radial-gradient(700px 360px at 85% 0%,rgba(199,154,91,.12),transparent 60%);}
  .featured-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
  .featured-media{display:grid;grid-template-columns:1fr;gap:16px}
  .featured-media img{width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
  .featured-media .fm-main{aspect-ratio:16/11;object-fit:cover}
  .featured-media .fm-sub{aspect-ratio:21/9;object-fit:cover;opacity:.96}
  .featured-info h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.5px;margin:14px 0 16px}
  .featured-info > p{color:var(--muted);font-size:16px;margin-bottom:20px}
  .featured-specs{list-style:none;display:grid;gap:11px;margin-bottom:26px}
  .featured-specs li{display:flex;gap:11px;align-items:flex-start;color:var(--text);font-size:15px}
  .featured-specs li::before{content:"✓";color:var(--accent);font-weight:900;flex:none}
  .featured-buy{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
  .featured-buy .price{font-size:28px;font-weight:800;margin-right:4px}
  .featured-buy .price small{font-size:13px;color:var(--muted);font-weight:600}

  .section{padding:72px 0}
  .section-head{text-align:center;max-width:680px;margin:0 auto 46px}
  .section-head .eyebrow{color:var(--accent);font-weight:800;letter-spacing:2px;font-size:13px;text-transform:uppercase}
  .section-head h2{font-size:clamp(26px,3.4vw,38px);margin-top:10px;font-weight:800;letter-spacing:-.4px}
  .section-head p{color:var(--muted);margin-top:12px;font-size:16px}

  /* Filters */
  .filters{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
  .chip{background:transparent;border:1px solid var(--line);color:var(--muted);
    padding:9px 20px;border-radius:2px;cursor:pointer;font-weight:600;font-size:14px;letter-spacing:.5px;transition:.15s}
  .chip:hover{color:var(--text);border-color:var(--accent)}
  .chip.active{background:var(--accent);color:var(--ink);border-color:var(--accent)}

  /* Products */
  .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;display:flex;flex-direction:column;transition:.2s transform,.2s border-color;cursor:pointer}
  .card-more{color:var(--accent);font-weight:700;font-size:14px;margin-top:2px}
  .card-more:hover{text-decoration:underline}
  .card:hover{transform:translateY(-4px);border-color:#33425a}
  .card .thumb{aspect-ratio:16/11;position:relative;display:grid;place-items:center;
    background:linear-gradient(150deg,#1c1813,#0f0e0b);border-bottom:1px solid var(--line)}
  .card .thumb svg{width:62%;height:auto;opacity:.95}
  .card .thumb.has-photo{background:#fff}
  .card .thumb img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
  .ci-thumb img{width:100%;height:100%;object-fit:cover;border-radius:9px}
  .tag{position:absolute;top:12px;left:12px;background:rgba(199,154,91,.16);color:var(--accent);
    border:1px solid rgba(199,154,91,.45);font-size:11px;font-weight:700;letter-spacing:1px;padding:4px 11px;border-radius:2px}
  .tag.hot{background:rgba(230,197,133,.18);color:var(--accent-2);border-color:rgba(230,197,133,.5)}
  .card .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
  .card h3{font-size:18px;font-weight:700}
  .card .cat{color:var(--accent-2);font-size:12px;font-weight:700;letter-spacing:.5px}
  .card .desc{color:var(--muted);font-size:14px;flex:1}
  .specs{display:flex;flex-wrap:wrap;gap:6px}
  .spec{background:var(--bg-soft);border:1px solid var(--line);color:var(--muted);
    font-size:12px;padding:3px 9px;border-radius:7px}
  .card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:6px}
  .price{font-size:22px;font-weight:800}
  .price small{font-size:13px;color:var(--muted);font-weight:600}

  /* Features */
  .feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .feat{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
  .feat .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;
    background:linear-gradient(135deg,rgba(199,154,91,.20),rgba(230,197,133,.10));border:1px solid rgba(199,154,91,.25);margin-bottom:14px}
  .feat h4{font-size:17px;margin-bottom:6px}
  .feat p{color:var(--muted);font-size:14px}

  /* About */
  .about{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
  .about h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;margin-bottom:18px;letter-spacing:-.4px}
  .about p{color:var(--muted);margin-bottom:16px;font-size:16px}
  .about ul{list-style:none;display:grid;gap:12px;margin-top:8px}
  .about li{display:flex;gap:12px;align-items:flex-start;color:var(--text)}
  .about li::before{content:"✓";color:var(--accent);font-weight:900;flex:none}
  .coach-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
  .coach-card .avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));
    display:grid;place-items:center;font-size:30px;font-weight:900;color:var(--ink);margin-bottom:16px}
  .coach-card blockquote{font-size:18px;line-height:1.7;font-style:italic}
  .coach-card .who{margin-top:18px;font-weight:700}
  .coach-card .who span{display:block;color:var(--muted);font-weight:500;font-size:14px}

  /* Contact form */
  .form-card{max-width:720px;margin:0 auto;background:var(--card);border:1px solid var(--line);
    border-radius:20px;padding:34px;box-shadow:var(--shadow)}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .field{margin-bottom:16px}
  .field label{display:block;font-weight:600;font-size:14px;margin-bottom:7px}
  .field input,.field textarea,.field select{
    width:100%;background:var(--bg);border:1px solid var(--line);color:var(--text);
    border-radius:10px;padding:12px 14px;font-family:inherit;font-size:15px;transition:.15s}
  .field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent)}
  .field textarea{resize:vertical;min-height:110px}
  .field .err{color:#ff6b6b;font-size:13px;margin-top:5px;display:none}
  .field.invalid .err{display:block}
  .field.invalid input,.field.invalid textarea{border-color:#ff6b6b}
  .contact-alt{text-align:center;margin-top:22px;color:var(--muted);font-size:14px}
  .contact-alt a{color:var(--accent);font-weight:700}

  footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:42px 0 28px;margin-top:10px}
  .foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
  .foot-grid p{color:var(--muted);font-size:14px;max-width:320px;margin-top:10px}
  .foot-links{display:flex;gap:46px;flex-wrap:wrap}
  .foot-col h5{font-size:14px;margin-bottom:12px;color:var(--text)}
  .foot-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:8px}
  .foot-col a:hover{color:var(--accent)}
  .copyright{text-align:center;color:var(--muted);font-size:13px;margin-top:30px;border-top:1px solid var(--line);padding-top:20px}

  /* Cart drawer */
  .overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);opacity:0;pointer-events:none;transition:.25s;z-index:90}
  .overlay.open{opacity:1;pointer-events:auto}
  .drawer{position:fixed;top:0;right:0;height:100%;width:420px;max-width:92vw;background:var(--bg);
    border-left:1px solid var(--line);z-index:100;transform:translateX(100%);transition:.28s ease;
    display:flex;flex-direction:column;box-shadow:-12px 0 40px rgba(0,0,0,.4)}
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:22px;border-bottom:1px solid var(--line)}
  .drawer-head h3{font-size:19px}
  .drawer-close{background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
  .drawer-body{flex:1;overflow-y:auto;padding:18px 22px}
  .cart-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
  .cart-item .ci-thumb{width:62px;height:62px;border-radius:10px;background:linear-gradient(150deg,#1c1813,#0f0e0b);
    border:1px solid var(--line);flex:none;display:grid;place-items:center}
  .cart-item .ci-thumb svg{width:70%}
  .cart-item .ci-info{flex:1;min-width:0}
  .cart-item .ci-info h4{font-size:15px;margin-bottom:3px}
  .cart-item .ci-info .ci-price{color:var(--muted);font-size:13px}
  .qty{display:inline-flex;align-items:center;gap:0;margin-top:8px;border:1px solid var(--line);border-radius:8px;overflow:hidden}
  .qty button{background:var(--bg-soft);border:none;color:var(--text);width:28px;height:28px;cursor:pointer;font-size:16px}
  .qty button:hover{background:var(--card)}
  .qty span{width:36px;text-align:center;font-size:14px;font-weight:700}
  .ci-remove{background:none;border:none;color:#ff6b6b;font-size:13px;cursor:pointer;margin-top:8px;display:block}
  .cart-empty{text-align:center;color:var(--muted);padding:60px 20px}
  .cart-empty .big{font-size:46px;margin-bottom:14px;opacity:.5}
  .drawer-foot{padding:22px;border-top:1px solid var(--line)}
  .drawer-foot .total{display:flex;justify-content:space-between;font-size:18px;font-weight:800;margin-bottom:16px}
  .drawer-foot .btn{width:100%;justify-content:center}
  .ship-note{color:var(--muted);font-size:13px;text-align:center;margin-bottom:14px}

  /* Toast */
  .toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
    background:var(--accent);color:var(--ink);font-weight:700;padding:13px 24px;border-radius:999px;
    z-index:200;opacity:0;pointer-events:none;transition:.3s;box-shadow:var(--shadow)}
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

  /* Checkout modal */
  .modal-ov{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:150;display:none;place-items:center;padding:20px}
  .modal-ov.open{display:grid}
  .modal{background:var(--bg);border:1px solid var(--line);border-radius:20px;max-width:560px;width:100%;
    padding:34px;box-shadow:var(--shadow);max-height:90vh;overflow-y:auto}
  .modal h3{font-size:22px;margin-bottom:8px}
  .modal .sub{color:var(--muted);font-size:14px;margin-bottom:22px}
  .order-summary{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px;margin:18px 0}
  .order-summary .row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;color:var(--muted)}
  .order-summary .row.total{color:var(--text);font-weight:800;font-size:17px;border-top:1px solid var(--line);margin-top:8px;padding-top:12px}
  .success{text-align:center;padding:20px 0}
  .success .check{width:74px;height:74px;border-radius:50%;background:rgba(199,154,91,.16);
    border:2px solid var(--accent);color:var(--accent);display:grid;place-items:center;font-size:40px;margin:0 auto 18px}

  @media(max-width:900px){
    .hero-grid,.about-grid{grid-template-columns:1fr}
    .grid{grid-template-columns:repeat(2,1fr)}
    .feat-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media(max-width:640px){
    .nav-links{display:none}
    .menu-toggle{display:block}
    .grid,.feat-grid{grid-template-columns:1fr}
    .form-row{grid-template-columns:1fr}
    .section{padding:54px 0}
  }

  /* ===== 商品詳情頁 ===== */
  .breadcrumb{padding:22px 0 0;color:var(--muted);font-size:14px}
  .breadcrumb a{color:var(--muted)}
  .breadcrumb a:hover{color:var(--accent)}
  .pd{padding:30px 0 70px}
  .pd-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:start}
  .gallery .main{aspect-ratio:4/3;border-radius:18px;border:1px solid var(--line);overflow:hidden;
    background:linear-gradient(150deg,#1c1813,#0f0e0b);display:grid;place-items:center}
  .gallery .main.has-photo{background:#fff}
  .gallery .main img{width:100%;height:100%;object-fit:cover}
  .gallery .main svg{width:60%}
  .gallery .thumbs{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap}
  .gallery .thumbs button{width:84px;height:64px;border-radius:10px;border:1px solid var(--line);
    overflow:hidden;cursor:pointer;background:#fff;padding:0;transition:.15s}
  .gallery .thumbs button.active{border-color:var(--accent);outline:2px solid var(--accent)}
  .gallery .thumbs img{width:100%;height:100%;object-fit:cover}
  .pd-info .cat{color:var(--accent-2);font-size:13px;font-weight:700;letter-spacing:.5px}
  .pd-info h1{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.4px;margin:8px 0 14px}
  .pd-price{font-size:30px;font-weight:800;margin-bottom:6px}
  .pd-price small{font-size:14px;color:var(--muted);font-weight:600;margin-left:6px}
  .pd-stock{color:var(--accent);font-size:14px;font-weight:700;margin-bottom:20px}
  .pd-info > p.lead{color:var(--muted);font-size:16px;margin-bottom:22px}
  .pd-buy{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}
  .qty-pick{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
  .qty-pick button{background:var(--bg-soft);border:none;color:var(--text);width:42px;height:46px;font-size:20px;cursor:pointer}
  .qty-pick button:hover{background:var(--card)}
  .qty-pick span{width:50px;text-align:center;font-weight:700;font-size:16px}
  .pd-buy .btn{height:46px}
  .pd-note{color:var(--muted);font-size:13px;margin-top:6px}
  .pd-section{margin-top:32px}
  .pd-section h3{font-size:18px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
  .pd-feats{list-style:none;display:grid;gap:11px}
  .pd-feats li{display:flex;gap:11px;align-items:flex-start;color:var(--text);font-size:15px}
  .pd-feats li::before{content:"✓";color:var(--accent);font-weight:900;flex:none}
  .spec-table{width:100%;border-collapse:collapse}
  .spec-table tr{border-bottom:1px solid var(--line)}
  .spec-table th{text-align:left;color:var(--muted);font-weight:600;font-size:14px;padding:11px 0;width:34%;vertical-align:top}
  .spec-table td{padding:11px 0;font-size:15px}
  .pd-desc{color:var(--muted);font-size:15.5px;line-height:1.8}
  .related{border-top:1px solid var(--line);padding:56px 0}
  @media(max-width:900px){ .pd-grid{grid-template-columns:1fr;gap:28px} }

  /* 詳情頁：tagline 與多段說明 */
  .pd-tagline{color:var(--accent);font-weight:700;font-size:16px;letter-spacing:.5px;margin:0 0 16px}
  .pd-desc + .pd-desc{margin-top:14px}

  .feat .ic svg{width:24px;height:24px;color:var(--accent)}

/* ---------- 商品選項（2026-09） ---------- */
.pd-options{display:grid;grid-template-columns:1fr 1fr;gap:0 14px;margin:6px 0 10px}
.pd-options .field{margin-bottom:12px}
.pd-options .field label{font-size:13px;margin-bottom:5px}
.pd-options .field select optgroup{background:var(--bg-soft);color:var(--accent-2);font-weight:700;font-style:normal}
.pd-options .field select option{background:var(--bg-soft);color:var(--text);font-weight:400}
.field-hint{color:var(--muted);font-size:12.5px;line-height:1.6;margin-top:6px}
.pd-options .field:has(.field-hint){grid-column:1 / -1}
.pd-options .field-ask{grid-column:1 / -1}
.pd-options .field-ask textarea{min-height:78px;resize:vertical}
@media (max-width:640px){.pd-options{grid-template-columns:1fr}}

/* ---------- 首頁：三條產品線 ---------- */
.line-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.line-card{display:flex;flex-direction:column;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,transform .2s}
.line-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.line-card .lc-thumb{aspect-ratio:16/10;background:#f3f3f2;border-bottom:1px solid var(--line);overflow:hidden}
.line-card .lc-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.line-card:hover .lc-thumb img{transform:scale(1.03)}
.line-card .lc-num{font-family:var(--display);font-size:13px;font-weight:800;letter-spacing:3px;color:var(--accent);margin:26px 26px 14px}
.line-card h3,.line-card p,.line-card .lc-go{margin-left:26px;margin-right:26px}
.line-card .lc-go{margin-bottom:26px}
.line-card h3{font-size:20px;font-weight:800;margin-bottom:10px}
.line-card p{color:var(--muted);font-size:14.5px;line-height:1.75;flex:1;margin-bottom:18px}
.line-card .lc-go{font-size:14px;font-weight:700;color:var(--accent-2)}
@media (max-width:820px){.line-grid{grid-template-columns:1fr}}

/* ---------- 完成整套組裝（交叉銷售） ---------- */
.assembly{border-top:1px solid var(--line);margin-top:44px;padding-top:34px}
.assembly .eyebrow{font-family:var(--display);font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--accent)}
.assembly h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;margin:8px 0 6px}
.assembly > p{color:var(--muted);font-size:15px;max-width:640px;margin-bottom:24px}
.assembly-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.assembly-card{display:flex;flex-direction:column;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:border-color .2s}
.assembly-card:hover{border-color:var(--accent)}
.assembly-card .ac-kicker{font-family:var(--display);font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.assembly-card h3{font-size:17px;font-weight:700;margin-bottom:7px}
.assembly-card p{color:var(--muted);font-size:14px;line-height:1.65;flex:1;margin-bottom:14px}
.assembly-card .ac-go{font-size:14px;font-weight:700;color:var(--accent-2)}
.assembly-note{margin-top:18px;padding:14px 16px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius);background:var(--bg-soft);color:var(--text);font-size:14px;line-height:1.7}
@media (max-width:820px){.assembly-grid{grid-template-columns:1fr}}

/* ---------- 商品相簿：直式照片完整顯示，不裁切 ---------- */
.gallery .main.has-photo{aspect-ratio:auto;background:#0d0d0d}
.gallery .main.has-photo img{height:auto;object-fit:contain;display:block}

/* ---------- 商品頁篩選標籤 ---------- */
.filter-label{text-align:center;font-size:12px;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin-bottom:10px}
#brandFilters{margin-bottom:18px}

/* ---------- 會員 ---------- */
.auth-link{display:inline-flex;align-items:center;gap:7px;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--bg-soft);color:var(--text);text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap}
.auth-link:hover{border-color:var(--accent)}
.auth-link span{max-width:90px;overflow:hidden;text-overflow:ellipsis}
.form-err{background:rgba(255,107,107,.12);border:1px solid rgba(255,107,107,.4);color:#ff8a8a;border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:16px;line-height:1.7}
.order-card{border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:14px}
.order-card .oc-head{display:flex;gap:14px;align-items:center;margin-bottom:10px;font-size:14px;color:var(--muted)}
.order-card .oc-head b{color:var(--text)}
.order-card .oc-status{margin-left:auto;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:12px;color:var(--accent)}
.order-card .row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-top:1px dashed var(--line);font-size:14px}
.order-card .row.total{font-weight:700;border-top:1px solid var(--line)}
.ship-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px;margin:14px 0;line-height:1.7}
@media (max-width:640px){.auth-link span{display:none}.auth-link{padding:0 12px}}

/* ---------- 會員：提示框、後台 ---------- */
.form-note{background:rgba(199,154,91,.12);border:1px solid rgba(199,154,91,.4);color:var(--accent-2);border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:16px;line-height:1.7}
/* ---------- 折扣碼 ---------- */
.coupon-box{margin:14px 0}
.coupon-box>label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.coupon-row{display:flex;gap:8px}
.coupon-row input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid var(--line);
  border-radius:8px;background:var(--bg-soft);color:var(--text);font-size:14px;letter-spacing:1px;text-transform:uppercase}
.coupon-row input:disabled{color:var(--accent);border-color:var(--accent)}
.coupon-row .btn{height:42px;padding:0 18px;white-space:nowrap}
.coupon-msg{font-size:13px;margin-top:6px;line-height:1.6}
.coupon-msg.ok{color:var(--accent)}
.coupon-msg.err{color:#ff8a8a}
.coupon-card{border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:12px;
  display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.coupon-card .cc-main{flex:1;min-width:180px}
.coupon-card .cc-code{font-family:var(--display);font-size:19px;letter-spacing:2px;color:var(--accent)}
.coupon-card .cc-title{font-size:14px;margin-top:2px}
.coupon-card .cc-terms{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.7}
.coupon-card.off{opacity:.5}

.acct-tabs{display:flex;gap:4px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:24px}
.acct-tabs button{background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);
  font:inherit;font-size:15px;padding:10px 18px;margin-bottom:-1px;cursor:pointer;transition:.2s}
.acct-tabs button:hover{color:var(--text)}
.acct-tabs button.active{color:var(--accent);border-bottom-color:var(--accent)}
.info-list{display:grid;gap:0}
.info-list .r{display:flex;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.info-list .r:last-child{border-bottom:0}
.info-list .r span:first-child{color:var(--muted);width:96px;flex:none}
.empty-state{text-align:center;color:var(--muted);padding:34px 10px;font-size:14.5px;line-height:1.8}
.admin-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.admin-bar input,.admin-bar select{height:40px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg-soft);color:var(--text);font-size:14px}
.admin-stats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.admin-stats .stat{border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px;color:var(--muted);background:var(--card)}
.admin-stats .stat b{display:block;font-size:20px;color:var(--text);font-family:Saira,sans-serif}
.order-card .oc-tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.order-card .oc-tools select,.order-card .oc-tools input{height:36px;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg-soft);color:var(--text);font-size:13px}
.order-card .oc-tools input.wide{flex:1;min-width:160px}
.order-card .oc-tools .btn{height:36px;padding:0 14px;font-size:13px}
.oc-status.s-已付款{color:#7fd39a}.oc-status.s-已出貨{color:#8ab8ff}.oc-status.s-已完成{color:var(--muted)}.oc-status.s-已取消{color:#ff8a8a;text-decoration:line-through}