/* =========================================================
   三福麵線 竹北店   style.css   v3.0
   設計主題：台灣老店 × 編輯式單頁
   手法：直書標題、印章、紙質感、暖色調，版型留白編輯感
   ========================================================= */

/* ---------- 1. Design Tokens ---------- */
:root {
  --c-red:        #7B2D1E;
  --c-red-light:  #A8402E;
  --c-red-deep:   #5E1F12;
  --c-cream:      #FBF6E9;
  --c-parchment:  #F0E6CA;
  --c-paper-2:    #EDE2C4;
  --c-ink:        #211309;
  --c-ink-soft:   #4A3826;
  --c-green:      #3D5C3A;
  --c-gold:       #B98A34;
  --c-gray:       #897560;
  --c-border:     #D9CCA8;
  --c-white:      #ffffff;

  --c-open:       #3D7A4A;
  --c-closed:     #9A4332;

  --font-serif: 'Noto Serif TC', serif;
  --font-sans:  'Noto Sans TC', sans-serif;

  --max-w: 1180px;
  --pad:   1.5rem;

  --ease:  cubic-bezier(0.4, 0, 0.2, 1);
  --dur:   0.35s;

  --sh-sm: 0 1px 3px rgba(33, 19, 9, 0.07);
  --sh-md: 0 6px 24px rgba(33, 19, 9, 0.12);
  --sh-lg: 0 18px 50px rgba(33, 19, 9, 0.18);

  --r-sm: 2px;
  --r-md: 6px;

  --header-h: 66px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: var(--header-h); }
/* overflow-x: hidden 只加在 body，避免 iOS Safari 的 position:fixed 失效問題 */

body {
  font-family: var(--font-sans);
  color: var(--c-ink);
  background-color: var(--c-cream);
  /* 紙質感：極淡的暖色光暈 + 細顆粒 */
  background-image:
    radial-gradient(circle at 18% 12%, rgba(185,138,52,0.05), transparent 38%),
    radial-gradient(circle at 85% 55%, rgba(123,45,30,0.04), transparent 42%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- 2. Typography helpers ---------- */
.eyebrow {
  display: inline-block;
  font-size: 0.74rem;
  letter-spacing: 0.28em;
  color: var(--c-red);
  font-weight: 500;
}

.sec-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  color: var(--c-ink);
  line-height: 1.25;
  letter-spacing: 0.02em;
}

/* 毛筆風分隔線 */
.brush-rule {
  width: 64px; height: 4px;
  margin-top: 1rem;
  background: var(--c-red);
  border-radius: 4px 4px 2px 2px / 4px;
  transform: skewX(-12deg);
  opacity: 0.85;
}
.brush-rule.center { margin-inline: auto; }

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.8rem;
  border-radius: var(--r-sm);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
  white-space: nowrap;
}
.btn svg { width: 1.05em; height: 1.05em; }

.btn-primary {
  background: var(--c-red);
  color: var(--c-white);
  border: 2px solid var(--c-red);
}
.btn-primary:hover {
  background: var(--c-red-light);
  border-color: var(--c-red-light);
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
}

.btn-ghost {
  background: transparent;
  color: var(--c-red);
  border: 2px solid var(--c-red);
}
.btn-ghost:hover {
  background: var(--c-red);
  color: var(--c-white);
  transform: translateY(-2px);
}

.btn-line {
  background: transparent;
  color: var(--c-ink);
  border: 2px solid var(--c-ink-soft);
}
.btn-line:hover { background: var(--c-ink); color: var(--c-cream); }

.btn-lg { padding: 0.95rem 2.4rem; font-size: 1.02rem; }

/* ---------- 4. Open / Closed Status Badge ---------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  white-space: nowrap;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-badge.is-open {
  background: rgba(61,122,74,0.12);
  color: var(--c-open);
  border-color: rgba(61,122,74,0.3);
}
.status-badge.is-open .status-dot {
  background: var(--c-open);
  box-shadow: 0 0 0 0 rgba(61,122,74,0.5);
  animation: pulse 2s infinite;
}
.status-badge.is-closed {
  background: rgba(154,67,50,0.1);
  color: var(--c-closed);
  border-color: rgba(154,67,50,0.28);
}
.status-badge.is-closed .status-dot { background: var(--c-closed); }
.status-badge.is-soon {
  background: rgba(185,138,52,0.14);
  color: var(--c-gold);
  border-color: rgba(185,138,52,0.32);
}
.status-badge.is-soon .status-dot { background: var(--c-gold); }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(61,122,74,0.5); }
  70%  { box-shadow: 0 0 0 7px rgba(61,122,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(61,122,74,0); }
}

/* ---------- 5. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(251, 246, 233, 0.85);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.site-header.scrolled {
  background: rgba(251, 246, 233, 0.97);
  border-bottom-color: var(--c-border);
  box-shadow: var(--sh-sm);
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.logo-link { display: flex; align-items: center; gap: 0.55rem; flex-shrink: 0; }
.logo-img { height: 40px; width: auto; mix-blend-mode: multiply; }
.logo-text {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--c-red);
  letter-spacing: 0.04em;
}

.main-nav { display: flex; align-items: center; gap: 1.85rem; }
.nav-link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-ink);
  padding-bottom: 3px;
  transition: color var(--dur);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--c-red);
  transition: right var(--dur) var(--ease);
}
.nav-link:hover::after,
.nav-link.active::after { right: 0; }
.nav-link.active { color: var(--c-red); }

.header-right { display: flex; align-items: center; gap: 0.9rem; flex-shrink: 0; }
.header-status { display: inline-flex; }

.header-call {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--c-red);
  color: var(--c-white);
  border-radius: var(--r-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background var(--dur);
}
.header-call:hover { background: var(--c-red-light); }
.header-call svg { width: 15px; height: 15px; }

/* 語言切換器 */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(0,0,0,0.06);
  border-radius: 999px;
  padding: 3px;
}
/* 桌面：隱藏 nav 內的切換器 */
.nav-lang-switcher { display: none; }

.lang-btn {
  background: transparent;
  border: none;
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  font-size: 0.72rem;
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--c-ink-soft);
  cursor: pointer;
  transition: background var(--dur), color var(--dur);
  white-space: nowrap;
  line-height: 1.4;
}
.lang-btn:hover { background: rgba(123,45,30,0.1); color: var(--c-red); }
.lang-btn.active {
  background: var(--c-red);
  color: var(--c-cream);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px; height: 30px;
}
.hamburger span {
  display: block; height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  padding: 3rem 0;
  overflow: hidden;
}

/* 大型淡化背景照片 */
.hero-photo {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 46%;
  background-size: cover;
  background-position: center;
}
.hero-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--c-cream) 0%, rgba(251,246,233,0.4) 30%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.hero-vert {
  position: relative;
  flex-shrink: 0;
}
.hero-vert-title {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(3.6rem, 12vw, 8rem);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--c-red);
  text-shadow: 2px 2px 0 rgba(123,45,30,0.08);
}

/* 印章 */
.seal {
  position: absolute;
  bottom: -6px;
  left: -18px;
  width: 76px; height: 76px;
  display: grid;
  place-items: center;
  background: var(--c-red);
  color: var(--c-cream);
  border-radius: 8px;
  transform: rotate(-6deg);
  box-shadow: var(--sh-md);
}
.seal span {
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  line-height: 1.1;
}
.seal::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1.5px solid rgba(251,246,233,0.6);
  border-radius: 4px;
}

.hero-text { max-width: 420px; }
.hero-text .eyebrow { margin-bottom: 1rem; }
.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-ink);
  margin-bottom: 1rem;
}
.hero-desc {
  font-size: 0.98rem;
  color: var(--c-ink-soft);
  margin-bottom: 1.6rem;
}
.hero-status-row { margin-bottom: 1.6rem; }
.hero-actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }
/* ---------- 7. Section frame ---------- */
.section {
  padding: 5.5rem 0;
  position: relative;
}
.section-head { margin-bottom: 3rem; }
.section-head.center { text-align: center; }
.section-head.center .brush-rule { margin-inline: auto; }
.section-head .eyebrow { margin-bottom: 0.5rem; }

.section-parchment { background: var(--c-parchment); }

/* ---------- 8. Signature ---------- */
.sig-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.sig-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--sh-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.sig-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.sig-photo { position: relative; padding-top: 70%; overflow: hidden; }
.sig-photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.sig-card:hover .sig-photo img { transform: scale(1.06); }
.sig-rank {
  position: absolute;
  top: 0.85rem; left: 0.85rem;
  background: var(--c-red);
  color: var(--c-cream);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  letter-spacing: 0.05em;
}
.sig-body { padding: 1.3rem 1.5rem 1.6rem; }
.sig-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 0.6rem; margin-bottom: 0.55rem;
}
.sig-name { font-family: var(--font-serif); font-size: 1.18rem; font-weight: 700; color: var(--c-ink); }
.sig-price { font-family: var(--font-serif); font-size: 1.12rem; font-weight: 700; color: var(--c-red); white-space: nowrap; }
.sig-desc { font-size: 0.88rem; color: var(--c-gray); line-height: 1.7; }

/* ---------- 9. Menu ---------- */
.menu-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.75rem;
}
.filter-btn {
  padding: 0.5rem 1.4rem;
  border: 1.5px solid var(--c-border);
  border-radius: 999px;
  background: transparent;
  color: var(--c-ink-soft);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--dur) var(--ease);
}
.filter-btn:hover { border-color: var(--c-red); color: var(--c-red); }
.filter-btn.active {
  background: var(--c-red);
  border-color: var(--c-red);
  color: var(--c-cream);
}

.menu-group { margin-bottom: 3rem; }
.menu-group:last-child { margin-bottom: 0; }
.menu-group.hidden { display: none; }
.menu-group-title {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-red);
  margin-bottom: 1.4rem;
}
.menu-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border);
}

.menu-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem 3rem;
}
.menu-item {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--c-border);
}
.menu-item-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-ink);
  flex-shrink: 0;
}
.menu-item-tag {
  font-size: 0.7rem;
  color: var(--c-red);
  border: 1px solid var(--c-red);
  border-radius: 2px;
  padding: 0.05rem 0.35rem;
  flex-shrink: 0;
  align-self: center;
}
.menu-item-dots {
  flex: 1;
  border-bottom: 1px dotted var(--c-border);
  transform: translateY(-4px);
  min-width: 1rem;
}
.menu-item-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--c-gray);
  font-weight: 400;
  margin-top: 0.2rem;
  line-height: 1.5;
}
.menu-item-price {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--c-red);
  flex-shrink: 0;
}
.menu-note {
  text-align: center;
  margin-top: 2.5rem;
  font-size: 0.85rem;
  color: var(--c-gray);
}
.menu-group-note {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--c-red);
  font-style: italic;
}

/* ---------- 10. About / Story ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 4rem;
  align-items: center;
}
.about-photo-wrap { position: relative; }
.about-photo {
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--sh-lg);
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-years {
  position: absolute;
  bottom: -1.4rem; right: -1.4rem;
  width: 108px; height: 108px;
  background: var(--c-cream);
  border: 2.5px solid var(--c-red);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  box-shadow: var(--sh-md);
}
.about-years b {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--c-red);
  line-height: 1;
}
.about-years small { font-size: 0.72rem; color: var(--c-ink-soft); letter-spacing: 0.1em; }

.about-text p {
  font-size: 1rem;
  line-height: 1.95;
  color: var(--c-ink-soft);
  margin-bottom: 1.1rem;
}
.about-text .sec-title { margin-bottom: 1.5rem; }
.about-text .eyebrow { margin-bottom: 0.5rem; }
.about-quote {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-red);
  border-left: 3px solid var(--c-red);
  padding-left: 1rem;
  margin: 1.5rem 0 0;
}

/* ---------- 11. Visit (hours + map) ---------- */
.visit-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3rem;
  align-items: stretch;
}
.visit-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 2.2rem;
  box-shadow: var(--sh-sm);
}
.visit-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 1.4rem;
}
.visit-row { display: flex; gap: 0.9rem; padding: 0.9rem 0; border-bottom: 1px solid var(--c-border); }
.visit-row:last-of-type { border-bottom: none; }
.visit-row .ic {
  width: 20px; height: 20px;
  color: var(--c-red);
  flex-shrink: 0;
  margin-top: 3px;
}
.visit-row .ic svg { width: 100%; height: 100%; }
.visit-row dt { font-size: 0.76rem; color: var(--c-gray); letter-spacing: 0.05em; margin-bottom: 0.15rem; }
.visit-row dd { font-size: 0.98rem; color: var(--c-ink); }
.visit-row dd a { color: var(--c-red); font-weight: 600; }

.hours-line { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.95rem; padding: 0.15rem 0; }
.hours-line.today { color: var(--c-red); font-weight: 600; }
.hours-line .day { color: var(--c-ink-soft); }
.hours-line.today .day { color: var(--c-red); }
.hours-closed-note { font-size: 0.8rem; color: var(--c-gray); margin-top: 0.6rem; }

.visit-status-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-border);
}
.visit-status-row .next-info { font-size: 0.85rem; color: var(--c-gray); }

.visit-map {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--c-border);
  box-shadow: var(--sh-sm);
  min-height: 340px;
  flex: 1;
}
.visit-map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; display: block; }

.visit-map-actions { display: flex; gap: 0.75rem; margin-top: 1rem; flex-wrap: wrap; }

/* ---------- 12. Footer ---------- */
.site-footer {
  background: var(--c-ink);
  color: rgba(251,246,233,0.65);
  padding: 3.5rem 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.4fr;
  gap: 3rem;
  padding-bottom: 3rem;
}
.footer-logo { height: 36px; filter: invert(1); mix-blend-mode: screen; opacity: 0.8; margin-bottom: 0.85rem; }
.footer-tagline { font-size: 0.85rem; margin-bottom: 1rem; }
.footer-fb { font-size: 0.85rem; color: var(--c-gold); text-decoration: underline; text-underline-offset: 3px; }
.footer-fb:hover { opacity: 0.8; }
.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: rgba(251,246,233,0.4);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-col a { font-size: 0.88rem; transition: color var(--dur); }
.footer-col a:hover { color: var(--c-cream); }
.footer-col p { font-size: 0.88rem; margin-bottom: 0.4rem; }
.footer-col .tel { color: var(--c-gold); font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(251,246,233,0.08); padding: 1.1rem 0; }
.footer-bottom p { font-size: 0.78rem; color: rgba(251,246,233,0.3); text-align: center; }
.footer-credit { margin-top: 0.35rem; }
.footer-credit a {
  color: rgba(251,246,233,0.5);
  text-decoration: none;
  transition: color var(--dur);
}
.footer-credit a:hover { color: var(--c-gold); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 13. Reveal animation ---------- */
/* 漸進增強：只有在 JS 啟用時才先隱藏，避免內容被 opacity:0 卡住 */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .status-badge.is-open .status-dot { animation: none; }
}

/* ---------- 14. Back to top ---------- */
.to-top {
  position: fixed;
  right: 1.5rem; bottom: 1.5rem;
  width: 46px; height: 46px;
  background: var(--c-red);
  color: var(--c-cream);
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--sh-md);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--dur), transform var(--dur), background var(--dur);
  z-index: 800;
}
.to-top.show { opacity: 1; transform: translateY(0); pointer-events: all; }
.to-top:hover { background: var(--c-red-light); }
.to-top svg { width: 20px; height: 20px; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .sig-grid { grid-template-columns: 1fr 1fr; }
  .about-inner { gap: 2.5rem; }
}

@media (max-width: 820px) {
  :root { --pad: 1.15rem; }

  /* nav → header 下方的行動選單面板 */
  .site-header { overflow: visible; }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: calc(100svh - var(--header-h));
    max-height: calc(100svh - var(--header-h));
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 0.7rem;
    padding: calc(clamp(1rem, 4svh, 2.25rem) + 2.65rem) var(--pad) 2rem;
    background:
      linear-gradient(180deg, rgba(251,246,233,0.98), rgba(240,230,202,0.98)),
      var(--c-parchment);
    overflow-y: auto;
    overscroll-behavior: contain;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition:
      opacity var(--dur) var(--ease),
      visibility var(--dur) var(--ease),
      transform var(--dur) var(--ease);
    z-index: 891;
  }
  .main-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .main-nav .nav-link {
    font-size: 1.3rem !important;
    font-weight: 700 !important;
    color: #FBF6E9 !important;
    background: #7B2D1E !important;      /* 紅色實心，無論背景為何都清晰 */
    text-align: center !important;
    padding: 0.85rem 0 !important;
    width: min(100%, 520px) !important;
    border-radius: 8px !important;
    border-bottom: none !important;
    margin: 0 !important;
    display: block !important;
  }
  .main-nav .nav-link:hover,
  .main-nav .nav-link.active {
    background: #5E1F12 !important;
  }
  .hamburger { display: flex; }
  .header-call span.label { display: none; }
  .header-call { padding: 0.5rem; }
  .header-status { display: none; }

  /* 手機版語言切換移到選單外，固定在 header 下方 */
  .header-right > .lang-switcher {
    position: absolute;
    top: calc(100% + 0.45rem);
    right: var(--pad);
    z-index: 905;
    display: flex;
    gap: 0.25rem;
    padding: 0.22rem;
    background: rgba(251,246,233,0.94);
    border: 1px solid rgba(123,45,30,0.18);
    border-radius: 999px;
    box-shadow: var(--sh-sm);
  }
  .header-right > .lang-switcher .lang-btn {
    font-size: 0.72rem;
    padding: 0.28rem 0.62rem;
  }

  /* 行動選單內不再顯示語言切換 */
  .nav-lang-switcher {
    display: none;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0;
    background: none;
    border-radius: 0;
    justify-content: center;
    flex-wrap: wrap;
  }
  .nav-lang-switcher .lang-btn {
    font-size: 0.95rem;
    padding: 0.5rem 1.2rem;
    border-radius: 999px;
    border: 1.5px solid rgba(123,45,30,0.45);
    color: var(--c-red);
    background: rgba(255,255,255,0.58);
  }
  .nav-lang-switcher .lang-btn.active {
    background: var(--c-red);
    border-color: var(--c-red);
    color: var(--c-cream);
  }

  .hero { padding: 2.5rem 0 3.5rem; }
  .hero-photo { width: 100%; opacity: 0.16; }
  .hero-photo::after { background: linear-gradient(180deg, var(--c-cream) 0%, transparent 60%, var(--c-cream) 100%); }
  .hero-inner { flex-direction: column; align-items: flex-start; gap: 1.75rem; }
  .hero-vert-title { font-size: clamp(3.2rem, 22vw, 6rem); }
  .hero-vert {
    display: flex;
    align-items: flex-end;
    gap: 0.9rem;
    padding: 0;
  }
  /* 手機版印章改為正常排版，避免被直排標題或 hero 裁切 */
  .seal {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    margin-bottom: 0.7rem;
  }
  .seal span { font-size: 1rem; letter-spacing: 0.06em; }

  .sig-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }

  .menu-list { grid-template-columns: 1fr; gap: 0; }

  /* 手機版選單項目：改為上下排版，提升可讀性 */
  .menu-item {
    align-items: flex-start;
    padding: 1rem 0;
    gap: 0.5rem 0.6rem;
    flex-wrap: nowrap;
  }
  .menu-item-name {
    flex: 1;
    min-width: 0;       /* 允許收縮，避免長品名溢出 */
    flex-shrink: 1;
  }
  .menu-item-dots { display: none; }   /* 小螢幕不需要點線 */
  .menu-item-desc {
    font-size: 0.82rem;
    line-height: 1.6;
    margin-top: 0.25rem;
  }
  .menu-item-price {
    align-self: flex-start;
    padding-top: 0.1rem;
    font-size: 1rem;
  }

  .about-inner { grid-template-columns: 1fr; gap: 2rem; }
  .about-photo-wrap {
    max-width: 380px;
    padding-bottom: 2rem;   /* 留空間給 about-years 徽章，避免遮住下方文字 */
  }
  .about-years { right: 0; bottom: 0; }

  /* 關於區段文字大小 */
  .about-text p { font-size: 1.02rem; line-height: 2; }
  .about-quote  { font-size: 1.1rem; }

  /* 找到我們：放大小字、地址可自動換行 */
  .visit-inner { grid-template-columns: 1fr; }
  .visit-row dt   { font-size: 0.88rem; }
  .visit-row dd   { font-size: 1rem; word-break: break-word; }
  .hours-line     { font-size: 1rem; padding: 0.3rem 0; }
  .hours-closed-note { font-size: 0.88rem; }

  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 460px) {
  .section { padding: 4rem 0; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1; }
  .hero-vert { gap: 0.65rem; }
  .seal { width: 48px; height: 48px; margin-bottom: 0.65rem; }
  .seal span { font-size: 1rem; letter-spacing: 0.06em; }
}