:root{
  --bg:#FBF6F3; --card:#FFFFFF; --ink:#2B1E22; --muted:#6E5A60; --line:#EEDFE3; --line2:#D9C5CB;
  --accent:#9A3F57; --accent-d:#7A2E43; --chip:#F3E6EA;
  --t1:#EAD7DC; --t2:#E3DCE8; --t3:#F0E2D6; --t4:#DCE4E2;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;font-size:16px;line-height:1.6}
a{color:var(--accent)}a:hover{color:var(--accent-d)}
img{max-width:100%;display:block}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
.main{padding-top:20px;padding-bottom:48px;min-height:60vh}
.muted{color:var(--muted)} .small{font-size:13px}
h1,h2,h3{line-height:1.3;margin:0 0 8px}
h1{font-size:26px} h2{font-size:20px}

/* 頁首 */
.topbar{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.topbar-in{display:flex;align-items:center;justify-content:space-between;min-height:56px;gap:12px}
.brand{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:.5px}
.topnav{display:flex;gap:4px}
.topnav a{display:flex;align-items:center;min-height:44px;padding:0 12px;text-decoration:none;color:var(--ink);font-size:15px;border-radius:10px}
.topnav a:hover{background:var(--chip)}

.notice{margin-top:16px;padding:12px 16px;border-radius:12px;background:#FFF;border:1px solid var(--line2)}
.error{margin:12px 0;padding:12px 16px;border-radius:12px;background:#FCEEEE;border:1px solid #E8B9B9;color:#8A2525}

/* 按鈕 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:12px;border:1.5px solid transparent;font:inherit;font-weight:700;font-size:15px;text-decoration:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-d);color:#fff}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{color:#fff;opacity:.9}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-small{min-height:40px;padding:0 14px;font-size:14px}
.btn-block{display:flex;width:100%}
.btn[disabled],.btn.is-disabled{background:#E4D3D8;color:var(--muted);border-color:#E4D3D8;cursor:not-allowed}

/* 首頁 */
.hero{padding:8px 0 16px}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:16px}
.chip{flex-shrink:0;display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line2);color:var(--ink);text-decoration:none;font-size:14px}
.chip.is-on{background:var(--accent);border-color:var(--accent);color:#fff}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (min-width:720px){.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
@media (min-width:1000px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink)}
.card-img{position:relative;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--t1)}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-count{position:absolute;left:8px;bottom:8px;font-size:12px;background:rgba(255,255,255,.9);color:var(--muted);padding:2px 8px;border-radius:999px}
.card-title{font-weight:700;font-size:15px}
.card-meta{display:flex;justify-content:space-between;font-size:13px}
.price{font-weight:700;color:var(--accent)}
.empty{padding:48px 16px;text-align:center;color:var(--muted)}

/* 商品頁 */
.product{display:grid;gap:24px}
@media (min-width:900px){.product{grid-template-columns:minmax(0,1fr) 380px;align-items:start}}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 16px}
.tag{font-size:13px;padding:3px 10px;border-radius:999px;background:var(--chip);color:var(--accent-d)}
.preview-main{border-radius:14px;overflow:hidden;background:var(--t1)}
.section-label{font-size:14px;font-weight:700;color:var(--muted);margin:20px 0 10px;display:flex;justify-content:space-between}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
@media (min-width:720px){.tiles{grid-template-columns:repeat(5,minmax(0,1fr))}}
.tile{aspect-ratio:3/4;border-radius:6px;overflow:hidden;background:var(--t2);display:flex;align-items:center;justify-content:center;position:relative}
.tile img{width:100%;height:100%;object-fit:cover}
.tile.locked{background:var(--t1)}
.tile.locked::after{content:"";position:absolute;inset:0;background:rgba(251,246,243,.35)}
.tile svg{position:relative;z-index:1}
.desc{white-space:pre-line;margin-top:16px}
.buybox{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px}
@media (min-width:900px){.buybox{position:sticky;top:76px}}
.buybox-price{font-size:28px;font-weight:700}
.trust{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.trust div{display:flex;gap:8px;align-items:flex-start}

/* 表單 */
.form{display:flex;flex-direction:column;gap:14px;max-width:520px}
.form label{font-weight:700;font-size:14px}
.input,.textarea,.select{width:100%;min-height:48px;padding:10px 14px;border-radius:10px;border:1px solid var(--line2);background:#fff;font:inherit;color:var(--ink)}
.textarea{min-height:120px;resize:vertical}
.check{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:12px;background:#fff;border:1px solid var(--line2);cursor:pointer;font-weight:400 !important}
.check input{width:22px;height:22px;margin:2px 0 0;flex-shrink:0;accent-color:var(--accent)}
.box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px}
.order-item{display:flex;gap:14px;align-items:center}
.order-item .thumb{width:64px;height:84px;border-radius:8px;overflow:hidden;background:var(--t1);flex-shrink:0}
.order-item .thumb img{width:100%;height:100%;object-fit:cover}
.order-item .info{flex:1;min-width:0}
.pay-icons{display:flex;gap:8px;flex-wrap:wrap}
.pay-icons span{font-size:12px;padding:3px 8px;border:1px solid var(--line2);border-radius:6px;background:#fff;color:var(--muted)}
.list{display:flex;flex-direction:column;gap:12px}
.status{font-size:12px;padding:2px 8px;border-radius:999px;background:var(--chip);color:var(--accent-d)}
.status.paid{background:#E5F2EA;color:#1F6B3B}
.status.pending{background:#FFF3DF;color:#8A5A00}
.status.failed{background:#FCEEEE;color:#8A2525}
.page-text{max-width:720px}
.page-text h2{margin-top:24px}

/* 頁尾 */
.footer{border-top:1px solid var(--line);background:#fff;padding:28px 0}
.footer-in{display:flex;flex-direction:column;gap:10px}
.footer-brand{font-weight:700}
.footer-links{display:flex;flex-wrap:wrap;gap:4px 16px}
.footer-links a{font-size:14px;min-height:32px;display:inline-flex;align-items:center}

/* 18 歲確認 */
.agegate{position:fixed;inset:0;background:rgba(43,30,34,.72);display:flex;align-items:center;justify-content:center;padding:16px;z-index:100}
.agegate[hidden]{display:none}
.agegate-box{background:#fff;border-radius:18px;padding:28px 22px;max-width:380px;width:100%;text-align:center;display:flex;flex-direction:column;gap:12px}
.badge18{margin:0 auto;width:64px;height:64px;border-radius:50%;border:3px solid var(--accent);color:var(--accent);font-weight:700;font-size:20px;display:flex;align-items:center;justify-content:center}

/* 後台 */
.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{background:#FAF3F5;font-weight:700}
.row{display:grid;gap:14px}
@media (min-width:720px){.row-2{grid-template-columns:1fr 1fr}.row-3{grid-template-columns:1fr 1fr 1fr}}
.hint{font-size:13px;color:var(--muted);font-weight:400}
.thumbs{display:flex;gap:6px;flex-wrap:wrap}
.thumbs img{width:60px;height:80px;object-fit:cover;border-radius:6px}

/* 手機版：商品頁底部固定購買列 */
.mobile-buy{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(43,30,34,.06)}
.mobile-buy .muted{max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
body:has(.mobile-buy) .footer{padding-bottom:96px}
@media (min-width:900px){.mobile-buy{display:none}body:has(.mobile-buy) .footer{padding-bottom:28px}}