:root{
  --bg:#fdfaf5; --bg-soft:#f5efe4; --surface:#ffffff; --surface-2:#fbf6ee;
  --line:rgba(29,36,48,.11); --line-strong:rgba(29,36,48,.20);
  --text:#1d2430; --body:#414c5b; --muted:#6b7684;
  --accent:#e8781f; --accent-strong:#c2570f; --accent-soft:rgba(232,120,31,.13);
  --easy:#34a866; --easy-ink:#1f7a45; --mid:#e8961f; --mid-ink:#a05c07; --hard:#d1503c; --hard-ink:#b03826;
  --shadow:0 1px 2px rgba(29,36,48,.05), 0 10px 26px -16px rgba(29,36,48,.30);
  --radius:18px; --maxw:720px;
  --font:"Noto Sans TC","PingFang TC","Microsoft JhengHei",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:62px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:17px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:50% 62%}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(253,250,245,.62) 0%,rgba(253,250,245,.74) 34%,rgba(253,250,245,.93) 68%,var(--bg) 100%);
}
.hero__inner{position:relative;padding-block:0 44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;
  font-size:13px;letter-spacing:.18em;color:var(--accent-strong);font-weight:800;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px}
.hero h1{
  margin:0 0 14px;font-size:clamp(2.5rem,11vw,3.8rem);line-height:1.12;
  font-weight:900;letter-spacing:-.01em;
}
.hero h1 span{display:inline;color:var(--accent-strong)}
html[lang="en"] .hero h1 span{display:block}
.hero p{margin:0 0 26px;color:var(--body);font-size:1.05rem;max-width:30ch;text-wrap:pretty}

.actions{display:flex;flex-direction:column;gap:10px}
.btn{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:56px;padding:12px 18px;border-radius:14px;border:1px solid transparent;
  font-size:1.03rem;font-weight:700;text-decoration:none;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.btn:active{transform:scale(.985)}
.btn--primary{background:var(--accent-strong);color:#fff;box-shadow:0 8px 20px -12px rgba(194,87,15,.9)}
.btn--primary:hover{background:#a8490a}
.btn--ghost{background:var(--surface);color:var(--text);border-color:var(--line-strong);box-shadow:var(--shadow)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent-strong)}
/* ---------- 按鈕左側圖示 ---------- */
.btn--icon{
  background-repeat:no-repeat;
  background-position:18px center;
  background-size:21px 21px;
  padding-left:51px;
}
.btn--fb{background-image:url("data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 24 24%22><path fill=%22%231877F2%22 d=%22M24 12.07C24 5.4 18.63 0 12 0S0 5.4 0 12.07C0 18.1 4.39 23.1 10.13 24v-8.44H7.08v-3.49h3.05V9.41c0-3.02 1.79-4.69 4.53-4.69 1.31 0 2.68.24 2.68.24v2.97h-1.5c-1.49 0-1.95.93-1.95 1.88v2.26h3.33l-.53 3.49h-2.8V24C19.61 23.1 24 18.1 24 12.07z%22/></svg>")}
.btn--map{background-image:url("data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 24 24%22><path fill=%22%23EA4335%22 d=%22M12 1.6c-4.09 0-7.4 3.31-7.4 7.4 0 5.55 7.4 13.4 7.4 13.4s7.4-7.85 7.4-13.4c0-4.09-3.31-7.4-7.4-7.4z%22/><circle cx=%2212%22 cy=%229%22 r=%222.7%22 fill=%22%23fff%22/></svg>")}

.btn__arrow{flex:none;opacity:.8;font-size:1.1em}
.scrollhint{margin-top:28px;display:flex;align-items:flex-start;gap:10px;color:var(--muted);font-size:.85rem;line-height:1.6}
.scrollhint span{display:inline-block;animation:bob 1.9s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}

/* ---------- steps rail ---------- */
.rail{position:sticky;top:0;z-index:20;background:rgba(253,250,245,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.rail ol{display:flex;gap:8px;margin:0;padding:11px 20px;list-style:none;overflow-x:auto;scrollbar-width:none}
.rail ol::-webkit-scrollbar{display:none}
.rail a{
  display:block;white-space:nowrap;padding:7px 14px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:var(--muted);background:var(--surface);border:1px solid var(--line);text-decoration:none;
}
.rail a:hover{color:var(--accent-strong);border-color:var(--accent)}

/* ---------- sections ---------- */
section{padding-block:clamp(48px,9vw,76px)}
.step{border-top:1px solid var(--line)}
.step:first-of-type{border-top:0}
.step__head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.step__num{
  flex:none;font-size:clamp(2.6rem,13vw,3.6rem);font-weight:900;line-height:.85;
  color:transparent;-webkit-text-stroke:2px var(--accent);letter-spacing:-.03em;
}
.step__title{margin:0;font-size:clamp(1.5rem,6vw,2rem);font-weight:800;line-height:1.3}
.step__title small{display:block;font-size:.75rem;font-weight:800;letter-spacing:.14em;color:var(--muted);margin-bottom:6px}
.lead{margin:0 0 22px;color:var(--body);text-wrap:pretty}
.lead b{color:var(--text)}

.list{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:12px}
.list li{position:relative;padding-left:30px;color:var(--body);text-wrap:pretty}
.list li::before{
  content:"";position:absolute;left:6px;top:.72em;width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);
}
.list strong{color:var(--text)}

.note{
  display:flex;gap:12px;background:var(--surface-2);border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:12px;padding:14px 16px;
  color:var(--body);font-size:.95rem;line-height:1.7;
}
.note b{color:var(--text)}

figure{margin:0 0 26px}
figure img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
figcaption{margin-top:10px;font-size:.82rem;color:var(--muted);text-align:center}

/* ---------- link + QR blocks ---------- */
.linkrow{display:grid;gap:14px;margin-bottom:22px}
.linkcard{
  display:grid;grid-template-columns:auto 1fr;align-items:center;gap:15px;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  border-radius:var(--radius);padding:14px;text-decoration:none;
  transition:border-color .15s ease,transform .15s ease;
}
.linkcard:hover{border-color:var(--accent);transform:translateY(-2px)}
.linkcard img{width:84px;height:84px;border-radius:10px;background:#fff}
.linkcard__txt{min-width:0}
.linkcard__txt b{display:block;font-size:1rem;line-height:1.45}
.linkcard__txt .sub{display:block;font-size:.84rem;color:var(--muted);line-height:1.5;margin-top:2px}
.linkcard__go{display:block;margin-top:7px;color:var(--accent-strong);font-weight:800;font-size:.88rem}

/* ---------- difficulty ---------- */
.levels{display:grid;gap:10px;margin:0 0 22px;padding:0;list-style:none}
.level{
  display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow);border-radius:14px;padding:14px 16px;
}
.level__bar{flex:none;width:6px;align-self:stretch;border-radius:99px;min-height:42px}
.level__name{font-weight:800}
.level__where{font-size:.85rem;color:var(--muted)}
.level__tag{margin-left:auto;flex:none;font-size:.76rem;font-weight:800;letter-spacing:.06em;padding:5px 10px;border-radius:999px}
.l-easy .level__bar{background:var(--easy)} .l-easy .level__tag{color:var(--easy-ink);background:rgba(52,168,102,.13)}
.l-mid  .level__bar{background:var(--mid)}  .l-mid  .level__tag{color:var(--mid-ink); background:rgba(232,150,31,.16)}
.l-hard .level__bar{background:var(--hard)} .l-hard .level__tag{color:var(--hard-ink);background:rgba(209,80,60,.13)}

/* ---------- outro ---------- */
.outro{background:var(--bg-soft);border-top:1px solid var(--line)}
.outro h2{margin:0 0 14px;font-size:clamp(1.5rem,6vw,2rem);font-weight:800;line-height:1.35}
.social{display:grid;gap:10px;margin-top:20px}
footer{border-top:1px solid var(--line);padding-block:30px 44px;color:var(--muted);font-size:.85rem}
footer p{margin:0 0 6px}
footer .sig{color:var(--text);font-weight:800}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(18px)}
.js .reveal.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
  .scrollhint span{animation:none}
}
@media (min-width:760px){
  body{font-size:18px}
  .actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .actions .btn--primary{grid-column:1 / -1}
  .btn{white-space:nowrap}
  .linkrow{grid-template-columns:1fr 1fr}
  .linkcard{padding:16px}
  .linkcard img{width:104px;height:104px}
}

/* ---------- 內容子頁（例如 /shoes） ---------- */
.subhead{padding:26px 0 10px}
.backlink{
  display:inline-flex;align-items:center;gap:7px;font-size:.88rem;font-weight:700;
  color:var(--muted);text-decoration:none;
}
.backlink:hover{color:var(--accent-strong)}
.subhead h1{
  margin:20px 0 14px;font-size:clamp(1.85rem,7.5vw,2.7rem);font-weight:900;
  line-height:1.26;letter-spacing:-.01em;text-wrap:balance;
}
.answer{
  display:flex;align-items:center;gap:15px;margin-top:24px;
  background:var(--surface);border:2px solid var(--accent);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow);
}
.answer__mark{flex:none;font-size:1.8rem;line-height:1}
.answer__txt{font-size:1.14rem;font-weight:800;line-height:1.5}
.qa h2{margin:0 0 10px;font-size:clamp(1.3rem,5.5vw,1.7rem);font-weight:800;line-height:1.35}
.qa h3{margin:26px 0 12px;font-size:1.04rem;font-weight:800;color:var(--accent-strong)}
.qa h3:first-of-type{margin-top:18px}
.qa .btn{margin-top:22px}
.note a,.qa p a{
  color:var(--accent-strong);font-weight:800;text-decoration:none;
  border-bottom:2px solid var(--accent-soft);
}
.note a:hover,.qa p a:hover{border-bottom-color:var(--accent)}

/* ---------- 語言切換 ---------- */
.langswitch{
  display:inline-flex;gap:2px;padding:3px;border-radius:999px;
  background:rgba(255,255,255,.80);border:1px solid var(--line);
  backdrop-filter:blur(8px);box-shadow:var(--shadow);
}
.langswitch a{
  padding:5px 13px;border-radius:999px;font-size:.82rem;font-weight:800;
  color:var(--muted);text-decoration:none;line-height:1.5;white-space:nowrap;
}
.langswitch a:hover{color:var(--accent-strong)}
.langswitch a.is-active{background:var(--accent-strong);color:#fff}
.hero__lang{position:absolute;top:18px;right:20px;z-index:5}
.rail{display:flex;align-items:center}
.rail ol{flex:1;min-width:0}
.rail__lang{flex:none;padding:0 20px 0 28px;background:linear-gradient(90deg,rgba(253,250,245,0),rgba(253,250,245,.97) 24px)}
.rail__lang .langswitch{background:transparent;box-shadow:none}