:root{
  --red:#d62828; --red-dark:#b21e1e; --blue:#1d4e89;
  --ink:#1f2933; --gray:#52606d; --line:#e4e7eb; --bg:#f7f8fa;
  --gold:#c79a3a; --plat:#5b6b7b;
  --radius:14px; --shadow:0 6px 24px rgba(20,30,50,.09);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);line-height:1.6;background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;cursor:pointer}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:999px;font-weight:700;font-size:15px;border:2px solid transparent;transition:.16s;white-space:nowrap}
.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:var(--red-dark)}
.btn-outline{background:#fff;color:var(--red);border-color:var(--red)}.btn-outline:hover{background:var(--red);color:#fff}
.btn-ghost{background:var(--bg);color:var(--ink)}.btn-ghost:hover{background:#eceef1}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-block{width:100%}
section{padding:56px 0}
.muted{color:var(--gray)}
.kicker{color:var(--red);font-weight:800;letter-spacing:2px;font-size:13px}
h2.sec{font-size:28px;font-weight:800;margin:8px 0 28px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

/* header */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:17px;flex:none}
.logo .mark{width:38px;height:38px;background:var(--red);border-radius:10px;display:grid;place-items:center;color:#fff}
.logo .mark svg{width:22px;height:22px}
.logo small{display:block;font-size:10px;color:var(--gray);font-weight:600;letter-spacing:.5px}
.menu{display:flex;gap:20px;flex:1;justify-content:center}
.menu a{font-weight:600;color:var(--gray);font-size:15px;white-space:nowrap}
.menu a:hover,.menu a.active{color:var(--red)}
.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{position:relative;color:var(--ink)}
.icon-btn svg{width:24px;height:24px}
.badge{position:absolute;top:-7px;right:-8px;background:var(--red);color:#fff;font-size:11px;font-weight:800;min-width:18px;height:18px;border-radius:999px;display:grid;place-items:center;padding:0 4px}
.tier-chip{font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px}
.tier-regular{background:var(--bg);color:var(--gray)}
.tier-gold{background:#fbf1d8;color:var(--gold)}
.tier-platinum{background:#e8edf2;color:var(--plat)}

/* hero */
.hero-banner img{width:100%;max-height:520px;object-fit:cover;display:block}
.hero{background:linear-gradient(120deg,#fbeaea,#f7f8fa 60%);padding:64px 0}
.hero h1{font-size:40px;font-weight:900;line-height:1.2;margin-bottom:16px}
.hero h1 .hl{color:var(--red)}
.hero p{font-size:18px;color:var(--gray);max-width:560px;margin-bottom:24px}
.hero .stats{display:flex;gap:32px;margin-top:30px}
.hero .stats .num{font-size:28px;font-weight:900;color:var(--red)}
.hero .stats .lbl{font-size:13px;color:var(--gray)}

/* grids & cards */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.18s;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card .ph{height:150px;display:grid;place-items:center;color:#fff;font-weight:800;letter-spacing:1px;background:linear-gradient(135deg,var(--red),#e87a7a);text-align:center;padding:10px}
.card .ph.alt{background:linear-gradient(135deg,#2f5d8f,#6f9fc9)}
.card .ph.soft{background:linear-gradient(135deg,#eceef1,#dfe3e8);color:var(--gray)}
.card .bd{padding:18px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:17px;margin-bottom:6px}
.card .sm{font-size:13px;color:var(--gray);flex:1}
.tag{display:inline-block;background:#fbeaea;color:var(--red);font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px}
.price{display:flex;align-items:baseline;gap:8px;margin:10px 0}
.price .now{font-size:22px;font-weight:900;color:var(--red)}
.price .was{text-decoration:line-through;color:#9aa5b1;font-size:14px}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px}
.pill-open{background:#e3f4e8;color:#1c8a4a}
.pill-wait{background:#fdf0d8;color:#b8860b}
.pill-full{background:#f0e1e1;color:#9a3b3b}

/* page header */
.page-head{background:var(--bg);padding:36px 0;border-bottom:1px solid var(--line)}
.page-head h1{font-size:28px;font-weight:900}
.page-head .crumb{color:var(--gray);font-size:13px;margin-bottom:6px}

/* filters */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.filters button{border:1px solid var(--line);background:#fff;color:var(--gray);padding:7px 16px;border-radius:999px;font-weight:600;font-size:14px}
.filters button.active{background:var(--red);color:#fff;border-color:var(--red)}

/* forms */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red)}
.hint{font-size:12px;color:var(--gray);margin-top:4px}
.err{color:var(--red);font-size:13px;margin-top:6px}
.ok{color:#1c8a4a;font-size:14px;font-weight:700}

/* panel / box */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.box{background:var(--bg);border-radius:12px;padding:18px}
.divider{height:1px;background:var(--line);margin:16px 0}

/* table-ish list */
.line-item{display:grid;grid-template-columns:1fr auto auto auto;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.qty button{width:32px;height:32px;background:#fff;border:none;font-size:18px;color:var(--gray)}
.qty span{width:40px;text-align:center;font-weight:700}

/* batch row */
.batch{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px}
.batch .meta{font-size:13px;color:var(--gray)}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,23,35,.5);display:grid;place-items:center;z-index:200;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:460px;width:100%;padding:28px;box-shadow:var(--shadow);max-height:90vh;overflow:auto}
.modal h3{font-size:20px;margin-bottom:6px}
.tabs{display:flex;gap:6px;margin-bottom:18px;background:var(--bg);padding:4px;border-radius:10px}
.tabs button{flex:1;padding:9px;border:none;background:none;border-radius:8px;font-weight:700;color:var(--gray)}
.tabs button.active{background:#fff;color:var(--red);box-shadow:0 1px 3px rgba(0,0,0,.08)}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:13px 24px;border-radius:999px;font-weight:600;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s;z-index:300}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* summary */
.summary-row{display:flex;justify-content:space-between;padding:6px 0;font-size:15px}
.summary-row.total{font-size:20px;font-weight:900;color:var(--red);border-top:1px solid var(--line);padding-top:12px;margin-top:6px}

/* footer */
footer{background:var(--ink);color:#cbd2d9;padding:44px 0 24px;margin-top:40px}
footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;margin-bottom:28px}
footer h5{color:#fff;font-size:14px;margin-bottom:14px}
footer a{display:block;color:#9aa5b1;font-size:14px;margin-bottom:9px}footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid #3e4c59;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#7b8794}

/* admin table */
.atable{width:100%;border-collapse:collapse;font-size:14px;white-space:nowrap}
.atable th{text-align:left;padding:10px 12px;background:var(--bg);color:var(--gray);font-weight:700;border-bottom:2px solid var(--line)}
.atable td{padding:11px 12px;border-bottom:1px solid var(--line)}
.atable tbody tr:hover{background:#fafbfc}

.empty{text-align:center;padding:60px 20px;color:var(--gray)}
.empty svg{width:54px;height:54px;color:#cbd2d9;margin:0 auto 14px}

@media(max-width:900px){
  .menu{display:none}
  .g3,.g4{grid-template-columns:1fr 1fr}
  footer .cols{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
}
@media(max-width:600px){
  .g3,.g4,.g2{grid-template-columns:1fr}
  .line-item{grid-template-columns:1fr auto}
  .hero .stats{flex-wrap:wrap;gap:18px}
}