:root {
  --bg: #fbf8f1; --card: #ffffff; --ink: #22301f; --muted: #66705f; --line: #e6e0d2;
  --leaf: #2f6b3a; --leaf-2: #e8f1e3; --sun: #e8a33d; --sun-2: #fbf0dc; --clay: #b5532f; --clay-2: #f9e6de;
  --radius: 14px; --shadow: 0 1px 2px rgba(40, 50, 30, .06), 0 6px 18px rgba(40, 50, 30, .06);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151a14; --card: #1e251c; --ink: #e9eee4; --muted: #a2ad9b; --line: #313b2e;
    --leaf: #8fcb98; --leaf-2: #24331f; --sun: #f0bd68; --sun-2: #392f1c; --clay: #ef9a7a; --clay-2: #3d2721;
    --shadow: none; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif; }
a { color: var(--leaf); }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }

/* 頁首 */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .in { max-width: 1120px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 14px; }
.logo { font-weight: 800; font-size: 18px; color: var(--ink); text-decoration: none; white-space: nowrap; }
.logo span { color: var(--leaf); }
.nav { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; flex: 1; }
.nav a { padding: 6px 10px; border-radius: 999px; color: var(--muted); text-decoration: none; white-space: nowrap; font-size: 15px; }
.nav a.on, .nav a:hover { background: var(--leaf-2); color: var(--leaf); }
.cartbtn { position: relative; text-decoration: none; font-size: 22px; padding: 4px 6px; }
.cartbtn b { position: absolute; top: -2px; right: -6px; background: var(--clay); color: #fff; font-size: 11px; min-width: 18px; height: 18px; border-radius: 9px; display: grid; place-items: center; padding: 0 4px; }

main { max-width: 1120px; margin: 0 auto; padding: 20px 16px 60px; }
h1 { font-size: clamp(26px, 5vw, 40px); line-height: 1.25; margin: 0 0 12px; letter-spacing: .5px; }
h2 { font-size: 22px; margin: 32px 0 14px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

/* 首頁 */
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; align-items: center; padding: 24px 0 8px; }
.hero p { white-space: pre-line; color: var(--muted); font-size: 17px; }
.hero .art { aspect-ratio: 1; max-width: 380px; width: 100%; justify-self: center; border-radius: 28px; background: radial-gradient(circle at 30% 30%, var(--sun-2), var(--leaf-2) 70%); display: grid; place-items: center; font-size: clamp(80px, 18vw, 160px); box-shadow: var(--shadow); }
.kicker { display: inline-block; font-size: 13px; letter-spacing: 2px; color: var(--clay); font-weight: 700; margin-bottom: 8px; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; } .hero .art { max-width: 260px; } }
.promises { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 24px 0; }
@media (max-width: 760px) { .promises { grid-template-columns: 1fr 1fr; } }
.promise { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.promise .i { font-size: 26px; }
.path { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.path a { padding: 16px; text-decoration: none; color: var(--ink); border-right: 1px solid var(--line); }
.path a:last-child { border-right: 0; }
.path a:hover { background: var(--leaf-2); }
.path .lv { font-size: 12px; color: var(--clay); font-weight: 700; letter-spacing: 1px; }
@media (max-width: 640px) { .path { grid-template-columns: 1fr; } .path a { border-right: 0; border-bottom: 1px solid var(--line); } }

/* 商品卡 */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.pcard { display: flex; flex-direction: column; text-decoration: none; color: var(--ink); overflow: hidden; transition: transform .15s; }
.pcard:hover { transform: translateY(-2px); }
.pic { aspect-ratio: 4/3; display: grid; place-items: center; font-size: 64px; background: linear-gradient(135deg, var(--leaf-2), var(--sun-2)); }
.pic img { width: 100%; height: 100%; object-fit: cover; }
.pcard .b { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.pcard .tag { font-size: 12px; color: var(--muted); }
.price { font-weight: 800; font-size: 18px; color: var(--clay); }
.price s { color: var(--muted); font-weight: 400; font-size: 14px; margin-left: 6px; }
.pill { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--leaf-2); color: var(--leaf); }
.pill.warn { background: var(--sun-2); color: #8a5a10; }
@media (prefers-color-scheme: dark) { .pill.warn { color: var(--sun); } }
.pill.out { background: var(--clay-2); color: var(--clay); }

/* 商品頁 */
.pd { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 760px) { .pd { grid-template-columns: 1fr; } }
.pd .pic { border-radius: var(--radius); font-size: 120px; }
.desc p { margin: 0 0 12px; }
.hl { padding-left: 0; list-style: none; }
.hl li { padding: 4px 0 4px 28px; position: relative; }
.hl li::before { content: "✓"; position: absolute; left: 4px; color: var(--leaf); font-weight: 800; }
table.spec { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec th, .spec td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec th { width: 7em; color: var(--muted); font-weight: 500; }
.buy { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 16px 0; }
.qty { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--card); }
.qty button { border: 0; background: transparent; width: 36px; height: 40px; font-size: 18px; cursor: pointer; }
.qty input { width: 44px; text-align: center; border: 0; background: transparent; }

/* 按鈕與表單 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); cursor: pointer; text-decoration: none; color: var(--ink); font-weight: 600; min-height: 42px; }
.btn.primary { background: var(--leaf); border-color: var(--leaf); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary { color: #10200f; } }
.btn.sun { background: var(--sun); border-color: var(--sun); color: #2b1d05; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.block { width: 100%; }
form .f { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
label { font-size: 14px; color: var(--muted); }
input, select, textarea { padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); width: 100%; }
textarea { min-height: 90px; resize: vertical; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choice { border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; cursor: pointer; background: var(--card); display: flex; gap: 6px; align-items: center; color: var(--ink); font-size: 15px; }
.choice input { width: auto; }
.choice.on { border-color: var(--leaf); background: var(--leaf-2); color: var(--leaf); font-weight: 600; }
.err { color: var(--clay); font-size: 14px; min-height: 1.2em; }

/* 購物車與結帳 */
.two { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; align-items: start; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; } }
.pad { padding: 16px 18px; }
.ci { display: grid; grid-template-columns: 56px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.ci .e { font-size: 34px; text-align: center; }
.sum { display: flex; justify-content: space-between; padding: 4px 0; }
.sum.total { font-size: 20px; font-weight: 800; border-top: 1px solid var(--line); margin-top: 8px; padding-top: 10px; }
.notice { background: var(--sun-2); border-radius: 10px; padding: 10px 14px; font-size: 14px; margin: 10px 0; }
.ok { background: var(--leaf-2); border-radius: 10px; padding: 12px 14px; }

/* 訂單進度 */
.steps { display: flex; gap: 0; margin: 12px 0 18px; }
.steps div { flex: 1; text-align: center; font-size: 13px; color: var(--muted); position: relative; padding-top: 22px; }
.steps div::before { content: ""; position: absolute; top: 6px; left: 50%; width: 12px; height: 12px; margin-left: -6px; border-radius: 50%; background: var(--line); }
.steps div::after { content: ""; position: absolute; top: 11px; left: calc(50% + 8px); right: calc(-50% + 8px); height: 2px; background: var(--line); }
.steps div:last-child::after { display: none; }
.steps div.done { color: var(--leaf); font-weight: 600; }
.steps div.done::before { background: var(--leaf); }
.tl { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.tl li { padding: 6px 0; border-bottom: 1px dashed var(--line); }

/* 客服對話 */
.chat { display: flex; flex-direction: column; gap: 10px; max-height: 60vh; overflow-y: auto; padding: 6px 2px; }
.msg { max-width: 82%; padding: 10px 14px; border-radius: 16px; white-space: pre-wrap; word-break: break-word; }
.msg.me { align-self: flex-end; background: var(--leaf); color: #fff; border-bottom-right-radius: 4px; }
@media (prefers-color-scheme: dark) { .msg.me { color: #10200f; } }
.msg.them { align-self: flex-start; background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg.sys { align-self: center; background: var(--sun-2); font-size: 14px; }
.msg .who { font-size: 12px; opacity: .75; margin-bottom: 2px; }
.typing { color: var(--muted); font-size: 14px; }

details.faq { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 8px; }
details.faq summary { cursor: pointer; font-weight: 600; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .in { max-width: 1120px; margin: 0 auto; padding: 20px 16px 40px; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 999px; font-size: 15px; z-index: 50; opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: 1; }
.testbar { background: var(--sun); color: #2b1d05; text-align: center; font-size: 13px; padding: 4px; }