/* AKi 汽車隔音 — dark / brushed-copper theme */
:root {
  --bg: #0b0a09;
  --bg-2: #12100e;
  --bg-3: #1a1714;
  --line: rgba(236, 222, 205, .1);
  --line-2: rgba(236, 222, 205, .18);
  --tx: #ede6dd;
  --tx-2: #b7aca0;
  --tx-3: #7f766c;
  --cu: #c08a5e;
  --cu-hi: #e6b48b;
  --cu-lo: #7d5236;
  --cu-grad: linear-gradient(115deg, #7d5236 0%, #c08a5e 32%, #f0c49c 50%, #b47c50 68%, #7d5236 100%);
  --serif: "Noto Serif TC", "Songti TC", serif;
  --sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --cond: "Barlow Condensed", "Noto Sans TC", sans-serif;
  --wrap: 1240px;
  --gut: clamp(16px, 4vw, 48px);
  --hd: 76px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: calc(var(--hd) + 56px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--tx); font: 400 16px/1.8 var(--sans); letter-spacing: .02em; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
::selection { background: var(--cu); color: #120d09; }
:focus-visible { outline: 1.5px solid var(--cu-hi); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.ic { width: 18px; height: 18px; flex: none; }
.muted { color: var(--tx-3); font-size: 14px; }

/* typography */
.eyebrow { display: flex; align-items: center; gap: 14px; font: 500 13px/1 var(--cond); letter-spacing: .32em; text-transform: uppercase; color: var(--cu-hi); margin-bottom: 22px; }
.eyebrow::before { content: ""; width: 36px; height: 1px; background: var(--cu); }
.eb-no { color: var(--tx-3); letter-spacing: .1em; }
.eb-no + span::before { content: "— "; color: var(--tx-3); }
.h-hero, .h-xl, .h-lg { font-family: var(--serif); font-weight: 600; letter-spacing: .04em; line-height: 1.25; }
.h-hero { font-size: clamp(40px, 7vw, 92px); line-height: 1.12; }
.h-xl { font-size: clamp(34px, 5vw, 64px); }
.h-lg { font-size: clamp(28px, 3.4vw, 44px); }
.h-lg em, .zone-tx h2 em { display: block; font: 400 .42em/1.6 var(--sans); font-style: normal; color: var(--tx-2); letter-spacing: .2em; margin-top: 8px; }
.lead { font-size: clamp(16px, 1.4vw, 18px); color: var(--tx-2); max-width: 640px; line-height: 1.9; }
.body { color: var(--tx-2); line-height: 2; margin: 24px 0; }
.cu-text { background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* buttons */
.btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 54px; padding: 0 32px; border-radius: 999px; font-weight: 500; font-size: 15px; letter-spacing: .1em; border: 1px solid transparent; overflow: hidden; transition: color .4s var(--ease), border-color .4s, background-position .8s var(--ease); }
.btn-cu { background: var(--cu-grad); background-size: 220% 100%; background-position: 0 0; color: #160f0a; }
.btn-cu:hover { background-position: 100% 0; }
.btn-cu::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(110deg, transparent 30%, rgba(255,240,225,.55) 50%, transparent 70%); transform: translateX(-120%); transition: transform .9s var(--ease); pointer-events: none; }
.btn-cu:hover::after { transform: translateX(120%); }
.btn-ghost { border-color: var(--line-2); color: var(--tx); }
.btn-ghost:hover { border-color: var(--cu); color: var(--cu-hi); }
.btn-sm { height: 42px; padding: 0 22px; font-size: 14px; }
.btn .ic { width: 18px; height: 18px; }
.link { display: inline-flex; align-items: center; gap: 10px; color: var(--cu-hi); font-size: 15px; letter-spacing: .12em; padding-bottom: 6px; border-bottom: 1px solid var(--cu-lo); transition: gap .4s var(--ease), border-color .3s; }
.link:hover { gap: 16px; border-color: var(--cu-hi); }

/* header */
.hd { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--hd); transition: background .4s, border-color .4s, backdrop-filter .4s; border-bottom: 1px solid transparent; }
.hd.solid { background: rgba(11, 10, 9, .82); backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2); border-color: var(--line); }
.hd-in { height: 100%; max-width: 1440px; margin: 0 auto; padding: 0 var(--gut); display: flex; align-items: center; gap: 32px; }
/* LOGO：去白邊的銅色標誌 */
.logo { display: flex; align-items: center; gap: 16px; flex: none; }
.logo-mk { position: relative; display: block; width: 78px; filter: drop-shadow(0 2px 6px rgba(0,0,0,.55)); }
.logo-mk img { display: block; width: 100%; height: auto; }
.logo-t { position: relative; display: flex; flex-direction: column; gap: 3px; padding-left: 16px; line-height: 1.2; }
.logo-t::before { content: ""; position: absolute; left: 0; top: -4px; bottom: -4px; width: 1px; background: linear-gradient(180deg, transparent, rgba(230,180,139,.75), transparent); }
.logo-t b { font: 600 15px/1.2 var(--serif); letter-spacing: .38em; color: #f1ebe3; }
.logo-t small { font: 600 9.5px/1.2 var(--cond); letter-spacing: .44em; background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav { display: flex; gap: 6px; margin: 0 auto; }
.nav a { position: relative; display: flex; flex-direction: column; align-items: center; padding: 8px 16px; font-size: 15px; letter-spacing: .14em; color: #e9e2d9; transition: color .3s; }
.nav a small { font: 500 10px/1 var(--cond); letter-spacing: .1em; color: #a89c8e; margin-top: 3px; transition: color .3s; }
.nav a::after { content: ""; position: absolute; left: 50%; bottom: -2px; width: 0; height: 1px; background: var(--cu); transition: width .4s var(--ease), left .4s var(--ease); }
.nav a:hover, .nav a.on { color: #fff; }
.nav a:hover small, .nav a.on small { color: var(--cu-hi); }
.nav a.on::after, .nav a:hover::after { width: 26px; left: calc(50% - 13px); }
/* 目前所在頁面：底線較寬、銅色光流過＋柔和呼吸光暈 */
.nav > a.on::after, .nav-dd > a.on::after { width: 34px; left: calc(50% - 17px); height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, #7d5236, #c08a5e 30%, #fff1df 50%, #c08a5e 70%, #7d5236) 0 0 / 200% 100%;
  animation: nav-flow 2.8s linear infinite, nav-glow 3.2s ease-in-out infinite; }
.nav > a.on span, .nav-dd > a.on span { text-shadow: 0 0 14px rgba(230,180,139,.35); }
@keyframes nav-flow { to { background-position: -200% 0; } }
@keyframes nav-glow { 0%, 100% { box-shadow: 0 0 4px rgba(230,180,139,.35); } 50% { box-shadow: 0 0 12px 1px rgba(240,196,156,.75); } }
.hd-act { display: flex; align-items: center; gap: 18px; }
.hd-tel { display: flex; align-items: center; gap: 8px; font: 500 17px/1 var(--cond); letter-spacing: .1em; color: #e9e2d9; }
.hd-tel:hover { color: var(--cu-hi); }
.hd-search { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid var(--line-2); color: #e9e2d9; transition: border-color .3s, color .3s, background .3s; }
.hd-search:hover { border-color: var(--cu); color: var(--cu-hi); background: rgba(192,138,94,.08); }
.hd-search .ic { width: 19px; height: 19px; }
.srch { position: fixed; inset: 0; z-index: 60; display: flex; justify-content: center; align-items: flex-start; padding: clamp(70px, 14vh, 140px) var(--gut) 24px; background: rgba(8,7,6,.72); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); opacity: 0; transition: opacity .25s; }
.srch[hidden] { display: none; }
.srch.open { opacity: 1; }
.srch-box { width: 100%; max-width: 680px; max-height: 100%; overflow-y: auto; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 22px; box-shadow: 0 40px 80px rgba(0,0,0,.6); transform: translateY(-12px); transition: transform .35s var(--ease); }
.srch.open .srch-box { transform: none; }
.srch-in { display: flex; align-items: center; gap: 14px; padding: 0 14px 0 24px; border-bottom: 1px solid var(--line); }
.srch-in > .ic { width: 22px; height: 22px; color: var(--cu-hi); }
.srch-in input { flex: 1; min-width: 0; height: 68px; background: none; border: 0; outline: 0; color: var(--tx); font: 400 17px var(--sans); letter-spacing: .04em; }
.srch-in input::placeholder { color: var(--tx-3); }
.srch-in input::-webkit-search-cancel-button { display: none; }
.srch-x { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; color: var(--tx-2); }
.srch-x:hover { background: var(--bg-3); color: var(--tx); }
.srch-hot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 20px 24px 24px; }
.srch-hot[hidden] { display: none; }
.srch-hot small { width: 100%; font-size: 12px; letter-spacing: .2em; color: var(--tx-3); margin-bottom: 4px; }
.srch-hot button { height: 34px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 14px; color: var(--tx-2); transition: border-color .3s, color .3s; }
.srch-hot button:hover { border-color: var(--cu); color: var(--cu-hi); }
.srch-res:empty { display: none; }
.srch-res { padding: 8px; }
.srch-res a { display: grid; gap: 4px; padding: 14px 16px; border-radius: 14px; transition: background .2s; }
.srch-res a:hover, .srch-res a:focus-visible { background: var(--bg-3); }
.srch-res small { font-size: 12px; letter-spacing: .16em; color: var(--cu); }
.srch-res b { font-weight: 500; font-size: 16px; color: var(--tx); }
.srch-res span { font-size: 14px; color: var(--tx-3); line-height: 1.7; }
.srch-res mark { background: none; color: var(--cu-hi); }
.srch-none { padding: 18px 16px; color: var(--tx-2); font-size: 15px; }
.srch-none a { color: var(--cu-hi); border-bottom: 1px solid var(--cu-lo); }
.burger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.burger .ic { width: 26px; height: 26px; }
/* 手機選單：右側滑出的側欄（約 8 成寬），左邊留一條壓暗的頁面，點一下即關閉 */
.drawer { position: fixed; top: var(--hd); right: 0; bottom: 0; overflow-x: hidden; width: min(72vw, 300px); background: var(--bg-2); border-left: 1px solid var(--line-2); box-shadow: -24px 0 60px rgba(0,0,0,.5); padding: 8px 20px 24px; display: flex; flex-direction: column; justify-content: space-between; overflow-y: auto; animation: drIn .35s var(--ease); }
.dr-scrim { position: fixed; inset: var(--hd) 0 0; background: rgba(6,5,4,.6); animation: drFade .35s ease; }
.dr-scrim[hidden] { display: none; }
@keyframes drIn { from { transform: translateX(100%); } to { transform: none; } }
@keyframes drFade { from { opacity: 0; } to { opacity: 1; } }
.drawer[hidden] { display: none; }
/* 選單底部聯絡區：做成兩顆聯絡按鈕（電話鈴響晃動、LINE 綠光呼吸），一眼看出是聯絡方式 */
.drawer-ft { display: grid; gap: 7px; padding-top: 18px; color: #e9e2d9; }
.dr-hd { display: flex; align-items: baseline; gap: 7px; font: 600 11.5px/1 var(--serif); letter-spacing: .14em; color: var(--tx); margin-bottom: 2px; }
.dr-hd small { font: 500 8.5px/1 var(--cond); letter-spacing: .24em; color: var(--cu); }
.dr-ct { position: relative; display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: 12px; border: 1px solid var(--cu-lo); background: linear-gradient(120deg, rgba(192,138,94,.14), rgba(192,138,94,.03)); overflow: hidden; -webkit-tap-highlight-color: transparent; transition: transform .2s var(--ease), border-color .3s, box-shadow .3s; }
.dr-ct::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 35%, rgba(255,240,222,.18) 50%, transparent 65%); transform: translateX(-120%); animation: drCtSheen 5s 1.2s ease-in-out infinite; pointer-events: none; }
.dr-line::after { animation-delay: 3.7s; }
@keyframes drCtSheen { 0% { transform: translateX(-120%); } 20%, 100% { transform: translateX(120%); } }
.dr-ct i { position: relative; flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: var(--cu-grad); color: #160f0a; }
.dr-ct i .ic { width: 14px; height: 14px; }
.dr-tel i .ic { animation: drRing 3.2s 1s ease-in-out infinite; transform-origin: 50% 50%; }
@keyframes drRing { 0%, 70%, 100% { transform: rotate(0); } 74% { transform: rotate(-16deg); } 78% { transform: rotate(14deg); } 82% { transform: rotate(-10deg); } 86% { transform: rotate(6deg); } 90% { transform: rotate(0); } }
.dr-line i { background: none; }
.dr-line i .ic { width: 28px; height: 28px; }
.dr-line i::before { content: ""; position: absolute; inset: -3px; border-radius: 9px; border: 1.5px solid #06c755; animation: drPulse 2.4s ease-out infinite; }
@keyframes drPulse { 0% { transform: scale(.85); opacity: .8; } 80%, 100% { transform: scale(1.35); opacity: 0; } }
.dr-ct span { display: grid; gap: 2px; min-width: 0; }
.dr-ct small { font-size: 9.5px; letter-spacing: .12em; color: var(--cu-hi); }
.dr-ct b { font: 600 13px/1.2 var(--cond); letter-spacing: .08em; color: var(--tx); }
.dr-ct > .ic { margin-left: auto; width: 14px; height: 14px; color: var(--cu); transition: transform .3s var(--ease); }
.dr-ct:active { transform: scale(.97); border-color: var(--cu-hi); box-shadow: 0 0 18px rgba(230,180,139,.3); }
.dr-ct:active > .ic { transform: translateX(3px); }
.dr-addr { display: flex; gap: 5px; align-items: flex-start; margin-top: 2px; font-size: 10.5px; line-height: 1.6; color: var(--tx-3); }
.dr-addr .ic { flex: none; width: 12px; height: 12px; margin-top: 2px; color: var(--cu); }
.drawer nav a { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 13px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 16px; letter-spacing: .08em; }
.drawer nav a small { font: 500 9.5px/1 var(--cond); letter-spacing: .16em; color: var(--tx-3); opacity: .7; }
.drawer nav a.on { color: var(--cu-hi); }

/* hero */
.hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; padding: calc(var(--hd) + 40px) 0 0; overflow: hidden; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 40%; animation: heroIn 2.4s var(--ease) both; }
/* 行駛感：鏡頭在車前倒退跟拍──車身大小不變，路面與兩側燈光往車後流過（canvas 由 site.js 繪製） */
.hero-car { position: absolute; left: 50%; top: 42%; width: min(58%, 96vh); aspect-ratio: 1711 / 1193; translate: -50% -50%;
  --m1: radial-gradient(ellipse 52% 56% at 50% 46%, #000 60%, transparent 100%);
  --m2: linear-gradient(180deg, #000 74%, transparent 90%);
  -webkit-mask-image: var(--m1), var(--m2); -webkit-mask-composite: source-in;
  mask-image: var(--m1), var(--m2); mask-composite: intersect; }
.hero-car img { animation: heroIn 2.4s var(--ease) both, ride 1.6s ease-in-out 2.4s infinite, rumble .12s linear 2.4s infinite; }
/* 車子壓暗一階，讓位給左側標題（用 opacity，不額外重繪） */
.hero-car { opacity: .42; }
.hero-fx { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; mix-blend-mode: screen; opacity: 0; transition: opacity 1.6s 1.2s;
  -webkit-mask-image: linear-gradient(90deg, rgba(0,0,0,.3) 0%, #000 35%); mask-image: linear-gradient(90deg, rgba(0,0,0,.3) 0%, #000 35%); }
.hero-fx.on { opacity: .4; }
@keyframes ride { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-2px); } }
@keyframes rumble { 0%, 100% { translate: 0 0; } 25% { translate: .4px -.5px; } 50% { translate: -.3px .4px; } 75% { translate: .3px .2px; } }
/* 手機／平板：車子固定在頁首下方的獨立區域，標題從車子下方開始，不再被文字蓋住 */
@media (max-width: 999px) {
  .hero { padding-top: calc(var(--hd) + min(60vw, 520px)); }
  .hero-car { top: calc(var(--hd) - 2vw); translate: -50% 0; width: min(100%, 860px); opacity: .95; }
}
/* 由左往右的暗色漸層（疊在車子與路面特效之上），讓左側文字更清楚 */
.hero-bg::after { content: ""; position: absolute; inset: 0; z-index: 2; background:
  radial-gradient(ellipse 60% 50% at 70% 45%, transparent 0%, rgba(11,10,9,.35) 70%),
  linear-gradient(90deg, rgba(11,10,9,.97) 0%, rgba(11,10,9,.88) 55%, rgba(11,10,9,.6) 100%),
  linear-gradient(0deg, var(--bg) 0%, rgba(11,10,9,0) 40%); }
@keyframes heroIn { from { transform: scale(1.12); opacity: 0; filter: brightness(.4); } to { transform: scale(1.02); opacity: 1; filter: none; } }
.hero-in { padding-bottom: 56px; }
@media (min-width: 1000px) { .hero-bg { left: 26%; } .hero-bg::after { background: linear-gradient(90deg, var(--bg) 0%, rgba(11,10,9,.9) 22%, rgba(11,10,9,.62) 42%, rgba(11,10,9,.25) 64%, rgba(11,10,9,0) 85%), linear-gradient(0deg, var(--bg) 0%, rgba(11,10,9,0) 40%); } }
/* 手機／平板：文字在車子下方（不是左右並排），暗色改為上淡下深──車子露在上方，下方文字區維持深色 */
@media (max-width: 999px) { .hero-bg::after { background:
  linear-gradient(180deg, rgba(11,10,9,.25) 0%, rgba(11,10,9,0) 12%, rgba(11,10,9,0) 30%, rgba(11,10,9,.75) 46%, var(--bg) 62%); } }
.hero-in > * { animation: up 1.2s var(--ease) both; }
.hero-in > :nth-child(2) { animation-delay: .15s; }
.hero-in > :nth-child(3) { animation-delay: .3s; }
.hero-in > :nth-child(4) { animation-delay: .45s; }
/* 字型載入中（html.fl）：主標進場動畫先暫停在透明、頁首文字先隱藏，載好再一起出現 */
.fl .hero-in > *, .fl .ph-in > * { animation-play-state: paused; }
.logo-t, .nav { transition: opacity .4s; }
.fl .logo-t, .fl .nav { opacity: 0; }
@keyframes up { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
.hero .lead { margin-top: 28px; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); margin-bottom: 90px; animation: up 1.2s .6s var(--ease) both; }
.hero-stats div { padding: 26px 0 0; display: flex; flex-direction: column; gap: 4px; }
.hero-stats div + div { padding-left: clamp(16px, 4vw, 48px); border-left: 1px solid var(--line); }
.hero-stats b { font: 500 clamp(36px, 4.5vw, 54px)/1 var(--cond); letter-spacing: .02em; background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-stats b small { font: 400 15px var(--sans); letter-spacing: .1em; margin-left: 6px; color: var(--tx-2); -webkit-text-fill-color: var(--tx-2); }
.hero-stats span { font-size: 14px; color: var(--tx-3); letter-spacing: .14em; }

.wave { position: absolute; left: 0; width: 100%; height: 80px; pointer-events: none; }
.wave .wv-base { stroke-dasharray: 1000; stroke-dashoffset: 1000; animation: draw 3.2s .5s var(--ease) forwards; }
.wave .wv-g { transform-box: fill-box; transform-origin: 50% 50%; animation: breathe 6s 3.7s ease-in-out infinite; }
.wave .wv-pulse { stroke-dasharray: 70 1000; stroke-dashoffset: 70; opacity: 0; filter: drop-shadow(0 0 4px rgba(240,196,156,.9)); animation: flow 5s 2.6s cubic-bezier(.45,.05,.55,.95) infinite; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes breathe { 0%, 100% { transform: scaleY(1); } 50% { transform: scaleY(.45); } }
@keyframes flow { 0% { stroke-dashoffset: 70; opacity: 0; } 8% { opacity: 1; } 70% { opacity: .85; } 100% { stroke-dashoffset: -1000; opacity: 0; } }
.hero-wave { bottom: 0; }

/* sections */
.sec { position: relative; padding: clamp(72px, 9vw, 128px) 0; }
.sec-alt { background: var(--bg-2); }
.sh { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.sh .lead { margin-top: 20px; }
.sh-c { margin-left: auto; margin-right: auto; text-align: center; }
.sh-c .eyebrow { justify-content: center; }
.sh-c .eyebrow::after { content: ""; width: 36px; height: 1px; background: var(--cu); }
.sh-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(40px, 5vw, 64px); }
.sh-row .sh { margin-bottom: 0; }

.ticks { display: grid; gap: 14px; margin-top: 28px; }
.ticks li { display: flex; gap: 14px; align-items: flex-start; color: var(--tx); }
.ticks .ic { margin-top: 5px; color: var(--cu); }

/* intro */
.intro-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.intro-img { position: relative; padding: 0 0 18% 12%; }
.fr { position: relative; overflow: hidden; }
.fr::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(230, 180, 139, .25); pointer-events: none; }
.fr img { width: 100%; aspect-ratio: 4/3; object-fit: cover; filter: saturate(.75) contrast(1.05); }
.fr-sm { position: absolute; left: 0; bottom: 0; width: 46%; box-shadow: 0 30px 60px rgba(0,0,0,.6); }
.fr-sm img { aspect-ratio: 1; }
.cap { position: absolute; right: 0; bottom: 4%; width: 48%; font-size: 13px; color: var(--tx-3); letter-spacing: .1em; line-height: 1.7; padding-left: 16px; border-left: 1px solid var(--cu-lo); }

/* services grid */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.svc { position: relative; display: flex; flex-direction: column; background: var(--bg); overflow: hidden; }
.svc-img { overflow: hidden; aspect-ratio: 16/10; }
.svc-img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.55) brightness(.7) contrast(1.1); transform: scale(1.02); transition: transform 1.2s var(--ease), filter .8s; }
.svc:hover .svc-img img { transform: scale(1.08); filter: none; }
.svc-tx { position: relative; padding: 30px 30px 34px; flex: 1; display: flex; flex-direction: column; }
.svc-no { position: absolute; right: 26px; top: -38px; font: 500 64px/1 var(--cond); color: transparent; -webkit-text-stroke: 1px rgba(230, 180, 139, .55); transition: -webkit-text-stroke-color .4s; }
.svc:hover .svc-no { -webkit-text-stroke-color: var(--cu-hi); }
.svc-tx small { font: 500 12px/1 var(--cond); letter-spacing: .3em; color: var(--cu); }
.svc-tx h3 { font: 600 24px/1.4 var(--serif); letter-spacing: .08em; margin: 12px 0 12px; }
.svc-tx h3 em { font: 400 14px var(--sans); font-style: normal; color: var(--tx-3); margin-left: 12px; letter-spacing: .12em; }
.svc-tx p { color: var(--tx-2); font-size: 15px; line-height: 1.85; }
.more { display: inline-flex; align-items: center; gap: 8px; margin-top: auto; padding-top: 24px; font-size: 13px; letter-spacing: .2em; color: var(--tx-3); transition: color .3s, gap .4s var(--ease); }
.svc:hover .more { color: var(--cu-hi); gap: 14px; }
.svc::before { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0; background: var(--cu-grad); transition: width .7s var(--ease); z-index: 1; }
.svc:hover::before { width: 100%; }

/* diagnose */
.dg { background: var(--bg-2); }
.dg-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.dg .h-lg { font-size: clamp(28px, 3vw, 38px); }
.dg-box { border: 1px solid var(--line); background: var(--bg); }
.dg-tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.dg-tabs button { position: relative; padding: 22px 16px; text-align: left; font-size: 15px; letter-spacing: .06em; color: var(--tx-3); transition: color .3s, background .3s; }
.dg-tabs button + button { border-left: 1px solid var(--line); }
.dg-tabs button span { display: block; font: 500 13px/1 var(--cond); letter-spacing: .2em; margin-bottom: 8px; color: var(--tx-3); }
.dg-tabs button[aria-selected="true"] { color: var(--tx); background: var(--bg-3); }
.dg-tabs button[aria-selected="true"] span { color: var(--cu-hi); }
.dg-tabs button::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--cu-grad); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease); }
.dg-tabs button[aria-selected="true"]::after { transform: scaleX(1); }
.dg-p { padding: clamp(28px, 4vw, 48px); animation: up .6s var(--ease); }
.dg-arrow { font: 500 13px/1 var(--cond); letter-spacing: .3em; color: var(--cu); margin-bottom: 14px; }
.dg-p h3 { font: 600 clamp(26px, 3vw, 36px)/1.3 var(--serif); letter-spacing: .06em; }
.dg-p > p:not(.dg-arrow) { color: var(--tx-2); margin-top: 16px; }
.dg-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.dg-links a { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 18px; border: 1px solid var(--line-2); border-radius: 999px; font-size: 14px; letter-spacing: .08em; transition: border-color .3s, color .3s; }
.dg-links a:hover { border-color: var(--cu); color: var(--cu-hi); }
.dg-links .ic { width: 15px; height: 15px; }

/* plans */
.plans { overflow: hidden; isolation: isolate; }
.plans-tex { position: absolute; inset: 0; z-index: -1; opacity: .16; }
.plans-tex img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.2) blur(1px); }
.plans-tex::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(11,10,9,.6) 50%, var(--bg) 100%); }
.plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plan { position: relative; padding: 36px 28px 34px; border: 1px solid var(--line-2); background: rgba(18, 16, 14, .78); backdrop-filter: blur(6px); transition: transform .6s var(--ease), border-color .4s; }
.plan:hover { transform: translateY(-6px); border-color: var(--cu-lo); }
.plan small { font: 500 13px/1 var(--cond); letter-spacing: .34em; color: var(--tx-3); }
.plan h3 { font: 600 26px/1.3 var(--serif); letter-spacing: .08em; margin: 16px 0 6px; }
.plan-tag { color: var(--cu-hi); font-size: 14px; letter-spacing: .2em; }
.plan-spec { font: 500 18px/1 var(--cond); letter-spacing: .1em; padding: 18px 0; margin: 20px 0 18px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--tx); }
.plan > p:last-child { font-size: 15px; color: var(--tx-2); line-height: 1.85; }
.plan-ft { border-color: transparent; background: linear-gradient(var(--bg-3), var(--bg-3)) padding-box, var(--cu-grad) border-box; border: 1px solid transparent; }
.plan-badge { position: absolute; top: -12px; right: 24px; padding: 5px 14px; border-radius: 999px; font-size: 12px; letter-spacing: .2em; color: #160f0a; background: var(--cu-grad); }

/* process */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); counter-reset: s; border-top: 1px solid var(--line); }
.steps li { position: relative; padding: 32px 22px 0 0; }
.steps li::before { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--cu); box-shadow: 0 0 0 5px rgba(192, 138, 94, .15); }
.steps span { font: 500 40px/1 var(--cond); color: var(--cu-hi); opacity: .9; }
.steps h3 { font: 600 19px/1.4 var(--serif); letter-spacing: .08em; margin: 14px 0 10px; }
.steps p { font-size: 14px; color: var(--tx-2); line-height: 1.85; }
.proc-ft { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; margin-top: 64px; padding: 28px 32px; border: 1px solid var(--line); background: var(--bg-2); }
.seal { display: flex; align-items: center; gap: 18px; }
.seal .ic { width: 44px; height: 44px; color: var(--cu-hi); stroke-width: 1.2; }
.seal b { display: block; font: 600 20px/1.4 var(--serif); letter-spacing: .06em; }
.seal span { font-size: 13px; color: var(--tx-3); letter-spacing: .14em; }
.proc-ft > p { display: flex; align-items: center; gap: 10px; color: var(--tx-2); font-size: 15px; }
.proc-ft > p .ic { color: var(--cu); }

/* works */
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.case { position: relative; overflow: hidden; background: var(--bg-2); }
.case-img { aspect-ratio: 4/5; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; filter: grayscale(.4) brightness(.8); transition: transform 1.2s var(--ease), filter .8s; }
.case:hover .case-img img { transform: scale(1.06); filter: none; }
.case-tx { position: absolute; inset: auto 0 0; padding: 60px 22px 22px; background: linear-gradient(0deg, rgba(11,10,9,.95) 20%, transparent); }
.case-tx small { font-size: 12px; letter-spacing: .2em; color: var(--cu-hi); }
.case-tx h3 { font: 600 22px/1.2 var(--cond); letter-spacing: .08em; margin: 6px 0 4px; }
.case-tx p { font-size: 14px; color: var(--tx-2); }
.recent { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; border-top: 1px solid var(--line); }
.recent li { display: flex; justify-content: space-between; gap: 16px; padding: 18px 4px; border-bottom: 1px solid var(--line); font-size: 15px; }
.recent li:nth-child(3n+2), .recent li:nth-child(3n+3) { padding-left: 24px; border-left: 1px solid var(--line); }
.recent b { font: 500 17px/1.5 var(--cond); letter-spacing: .08em; }
.recent span { color: var(--tx-3); }
.recent-full { margin-top: 0; }

/* why */
.why { background: var(--bg-2); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 36px; }
.badges li { padding: 8px 18px; border-radius: 999px; border: 1px solid var(--line-2); font: 500 15px/1 var(--cond); letter-spacing: .14em; color: var(--tx); }
.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: end; }
.certs figure { background: #f4efe8; padding: 10px; box-shadow: 0 30px 50px rgba(0,0,0,.5); transition: transform .6s var(--ease); }
.certs figure:nth-child(2) { transform: translateY(-36px); }
.certs figure:hover { transform: translateY(-10px); }
.certs figure:nth-child(2):hover { transform: translateY(-46px); }
.certs img { width: 100%; aspect-ratio: 565/800; object-fit: cover; }

/* reviews */
.revs { overflow: hidden; }
.rev-track { overflow: hidden; padding: 6px 0 12px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.rev-row { display: flex; width: max-content; animation: revs 80s linear infinite; }
.rev-track:hover .rev-row, .rev-track:active .rev-row { animation-play-state: paused; }
@keyframes revs { from { transform: translateX(-50%); } to { transform: translateX(0); } }
.rev { flex: 0 0 min(400px, 80vw); margin-right: 20px; display: flex; flex-direction: column; padding: 36px 32px 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-2); transition: border-color .4s, transform .5s var(--ease); }
.rev:hover { border-color: var(--cu-lo); transform: translateY(-4px); }
.stars { display: flex; gap: 3px; color: var(--cu-hi); }
.st { width: 15px; height: 15px; fill: currentColor; stroke: none; }
.rev blockquote { font: 500 17px/1.95 var(--serif); letter-spacing: .04em; margin: 22px 0 28px; flex: 1; }
.rev blockquote::before { content: "“"; display: block; font: 600 54px/.6 var(--serif); color: var(--cu-lo); margin-bottom: 12px; }
.rev figcaption { display: flex; justify-content: space-between; gap: 12px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; }
.rev figcaption b { font-weight: 500; color: var(--cu-hi); letter-spacing: .1em; }
.rev figcaption span { color: var(--tx-3); }

/* brands */
.brands { padding: 56px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; }
.brands-t { text-align: center; font-size: 13px; letter-spacing: .3em; color: var(--tx-3); margin-bottom: 26px; }
.marquee { mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.mq-row { display: flex; width: max-content; animation: mq 60s linear infinite; }
.mq-row span { font: 500 clamp(24px, 3vw, 34px)/1 var(--cond); letter-spacing: .14em; text-transform: uppercase; color: var(--tx-3); padding: 0 34px; white-space: nowrap; transition: color .3s; position: relative; }
.mq-row span:hover { color: var(--cu-hi); }
.mq-row span::after { content: "/"; position: absolute; right: -6px; color: var(--cu-lo); opacity: .6; }
.marquee:hover .mq-row { animation-play-state: paused; }
@keyframes mq { to { transform: translateX(-50%); } }

/* video */
.yt { position: relative; aspect-ratio: 4/3; max-width: 860px; margin: 0 auto; overflow: hidden; background: #000; cursor: pointer; }
.yt img { width: 100%; height: 100%; object-fit: cover; opacity: .7; transition: opacity .5s, transform 1.2s var(--ease); }
.yt:hover img { opacity: .85; transform: scale(1.03); }
.yt button { position: absolute; inset: 0; margin: auto; width: 96px; height: 96px; border-radius: 50%; display: grid; place-items: center; background: rgba(11,10,9,.45); border: 1px solid var(--cu-hi); color: var(--cu-hi); backdrop-filter: blur(6px); transition: transform .5s var(--ease), background .3s; }
.yt button .ic { width: 34px; height: 34px; fill: currentColor; margin-left: 4px; }
.yt:hover button { transform: scale(1.08); background: rgba(192, 138, 94, .2); }
.yt iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* CTA band */
.cta { position: relative; padding: clamp(100px, 13vw, 170px) 0; text-align: center; overflow: hidden; background:
  radial-gradient(ellipse 60% 70% at 50% 100%, rgba(192, 138, 94, .18), transparent 70%), var(--bg); border-top: 1px solid var(--line); }
.cta-in { display: flex; flex-direction: column; align-items: center; }
.cta .eyebrow::after { content: ""; width: 36px; height: 1px; background: var(--cu); }
.cta .lead { margin-top: 24px; }
.cta .btns { justify-content: center; }
.cta-wave { top: 50%; transform: translateY(-50%); opacity: .35; }
.cta { padding-bottom: clamp(72px, 8vw, 112px); }
/* CTA 下方：銅線分隔＋四項承諾（細線分欄）＋底部銅色地平線光，填補按鈕下方的空白 */
.cta-rule { position: relative; width: min(560px, 80%); height: 1px; margin: 64px auto 40px; background: linear-gradient(90deg, transparent, var(--cu-lo) 30%, var(--cu-hi) 50%, var(--cu-lo) 70%, transparent); }
.cta-rule i { position: absolute; left: 50%; top: 50%; width: 7px; height: 7px; border: 1px solid var(--cu-hi); background: var(--bg); transform: translate(-50%, -50%) rotate(45deg); }
.cta-promise { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); width: min(880px, 100%); }
.cta-promise li { position: relative; display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 4px 18px; }
.cta-promise li + li::before { content: ""; position: absolute; left: 0; top: 10%; height: 80%; width: 1px; background: linear-gradient(180deg, transparent, var(--line) 25%, rgba(192,138,94,.35) 50%, var(--line) 75%, transparent); }
.cta-promise b { font: 600 30px/1 var(--cond); letter-spacing: .04em; background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cta-promise b small { font-size: 13px; margin-left: 3px; letter-spacing: .1em; }
.cta-promise span { font-size: 14px; color: var(--tx-2); letter-spacing: .08em; }
.cta-promise em { font: 500 10px/1 var(--cond); font-style: normal; letter-spacing: .3em; color: var(--tx-3); }
.cta-horizon { position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(192,138,94,.25) 20%, var(--cu-hi) 50%, rgba(192,138,94,.25) 80%, transparent); }
.cta-horizon::after { content: ""; position: absolute; left: 50%; bottom: 0; width: min(640px, 70%); height: 60px; transform: translateX(-50%); background: radial-gradient(ellipse 50% 100% at 50% 100%, rgba(230,180,139,.16), transparent 70%); pointer-events: none; }
@media (max-width: 720px) {
  .cta-rule { margin: 44px auto 28px; }
  .cta-promise { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
  .cta-promise li { padding: 2px 8px; }
  .cta-promise li:nth-child(3)::before { display: none; }
  .cta-promise b { font-size: 24px; }
  .cta-promise span { font-size: 12px; }
  .cta-promise em { font-size: 9px; letter-spacing: .22em; }
}

/* page hero */
.ph { position: relative; min-height: min(38svh, 400px); display: flex; align-items: flex-end; padding: calc(var(--hd) + 40px) 0 72px; overflow: hidden; isolation: isolate; }
.ph .ph-wave { height: 40px; }
.ph .h-xl { font-size: clamp(26px, 3.2vw, 40px); }
.ph .eyebrow { margin-bottom: 12px; font-size: 11.5px; }
.ph .crumb { margin-bottom: 14px; }
.ph-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.ph-bg img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.5) brightness(.45) contrast(1.1); animation: heroIn 2s var(--ease) both; }
.ph-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,10,9,.9) 10%, rgba(11,10,9,.3)), linear-gradient(0deg, var(--bg), transparent 55%); }
.ph-in > * { animation: up 1.1s var(--ease) both; }
.ph-in > :nth-child(2) { animation-delay: .12s; }
.ph-in > :nth-child(3) { animation-delay: .24s; }
.ph .lead { margin-top: 12px; font-size: 14.5px; line-height: 1.8; max-width: 560px; }
.ph-wave { bottom: 0; }
.ph-404 { min-height: 80svh; }
/* 案例／隔音工程／商品目錄：高解析照片，右側壓暗減輕讓主體清楚 */
.ph-clear .ph-bg::after { background: linear-gradient(90deg, rgba(11,10,9,.92) 10%, rgba(11,10,9,.55) 42%, rgba(11,10,9,.08) 78%), linear-gradient(0deg, var(--bg), transparent 30%); }
.ph-cases .ph-bg img { object-position: 70% 72%; }
.ph-serve .ph-bg img { object-position: 50% 60%; }
/* 關於 AKi：照片中的車已縮小，對焦讓整台車露出在右側 */
.ph-about .ph-bg img { object-position: 70% 70%; }
/* 照片縮在右側並墨色化，左側以水墨山水＋雲霧延伸到文字處，不再是一片黑 */

/* services page */
.jump { position: sticky; top: var(--hd); z-index: 20; background: rgba(11,10,9,.86); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.jump-in { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.jump-in::-webkit-scrollbar { display: none; }
.jump a { flex: none; display: flex; align-items: baseline; gap: 8px; padding: 16px 18px; font-size: 15px; letter-spacing: .1em; color: var(--tx-2); border-bottom: 2px solid transparent; transition: color .3s, border-color .3s; }
.jump a span { font: 500 13px/1 var(--cond); color: var(--tx-3); }
.jump a:hover, .jump a.on { color: var(--tx); border-color: var(--cu); }
.zone { padding: clamp(80px, 10vw, 140px) 0; border-bottom: 1px solid var(--line); }
.zone:nth-of-type(even) { background: var(--bg-2); }
.zone-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
.zone-r .zone-gal { order: 2; }
.zone-gal { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.zone-gal figure { overflow: hidden; position: relative; }
.zone-gal figure::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(230, 180, 139, .18); pointer-events: none; }
.zone-gal img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; filter: saturate(.8); transition: transform 1.2s var(--ease); }
.zone-gal figure:hover img { transform: scale(1.05); }
.zone-gal.g3 figure:first-child { grid-column: 1 / -1; }
.zone-gal.g3 figure:first-child img { aspect-ratio: 16/9; }
.zone-gal.g2 img { aspect-ratio: 1; }
.zone-no { font: 500 92px/1 var(--cond); background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 20px; }
.zone-no span { font-size: 22px; -webkit-text-fill-color: var(--tx-3); margin-left: 8px; letter-spacing: .1em; }
.zone-mat { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--tx); font-size: 15px; letter-spacing: .06em; }
.zone-mat small { display: block; font-size: 12px; letter-spacing: .3em; color: var(--cu); margin-bottom: 6px; }

/* about page */
.care-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.care-grid li { display: flex; flex-direction: column; gap: 6px; padding: 40px 30px; background: var(--bg); transition: background .4s; }
.care-grid li:hover { background: var(--bg-2); }
.care-grid .ic { width: 38px; height: 38px; color: var(--cu-hi); stroke-width: 1.2; margin-bottom: 18px; }
.care-grid b { font: 600 21px/1.4 var(--serif); letter-spacing: .08em; }
.care-grid span { font-size: 14px; color: var(--tx-3); letter-spacing: .1em; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.duo-card { display: flex; flex-direction: column; border: 1px solid var(--line); background: var(--bg); }
.duo-img { aspect-ratio: 16/9; overflow: hidden; }
.duo-img img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8) brightness(.85); }
.duo-tx { padding: clamp(28px, 4vw, 44px); }
.duo-tx .eyebrow { margin-bottom: 16px; }
.duo-tx h3 { font: 600 26px/1.4 var(--serif); letter-spacing: .06em; margin-bottom: 14px; }
.duo-tx p { color: var(--tx-2); }
.duo-tx p.muted { margin-top: 12px; color: var(--tx-3); }
.duo-tx .link { margin-top: 24px; }

/* contact */
.stores { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.store { border: 1px solid var(--line); background: var(--bg-2); display: flex; flex-direction: column; }
.store-main { grid-row: span 2; }
.store-img { aspect-ratio: 16/10; overflow: hidden; }
.store-img img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85); }
.store-tx { padding: clamp(26px, 3.5vw, 40px); }
.store-hd { display: flex; justify-content: space-between; align-items: center; }
.store-hd small { font: 500 13px/1 var(--cond); letter-spacing: .3em; color: var(--tx-3); }
.pill { font-size: 12px; letter-spacing: .14em; padding: 4px 14px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--tx-2); }
.pill-on { border-color: var(--cu-lo); color: var(--cu-hi); }
.pill-on::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--cu-hi); margin-right: 8px; vertical-align: middle; box-shadow: 0 0 10px var(--cu-hi); }
.store h3 { font: 600 30px/1.3 var(--serif); letter-spacing: .1em; margin: 14px 0 18px; }
.store-rows { display: grid; gap: 10px; margin-bottom: 18px; }
.store-rows a { display: flex; align-items: center; gap: 12px; color: var(--tx); transition: color .3s; }
.store-rows a:hover { color: var(--cu-hi); }
.store-rows .ic { color: var(--cu); }
.map-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(40px, 6vw, 80px); align-items: start; }
.map { position: sticky; top: calc(var(--hd) + 24px); aspect-ratio: 4/5; border: 1px solid var(--line); overflow: hidden; }
.map iframe { width: 100%; height: 100%; border: 0; filter: grayscale(1) invert(.92) contrast(.85) sepia(.25); }
.map-sketch { margin-top: 40px; max-width: 360px; opacity: .9; }

/* footer */
.ft { background: #070605; border-top: 1px solid var(--line); padding: 80px 0 0; }
.ft-grid { display: grid; grid-template-columns: 1.3fr 1.2fr .8fr 1.3fr; gap: 48px; padding-bottom: 64px; }
.ft-brand img { width: 132px; height: auto; }
.ft-tag { font: 500 13px/1 var(--cond); letter-spacing: .32em; text-transform: uppercase; color: var(--cu-hi); margin: 20px 0 16px; }
.ft-brand p:last-child { color: var(--tx-3); font-size: 14px; }
.ft h4 { font: 500 13px/1 var(--cond); letter-spacing: .3em; color: var(--tx-3); margin-bottom: 22px; font-family: var(--sans); }
.ft ul { display: grid; gap: 10px; }
.ft ul a { font-size: 14px; color: var(--tx-2); transition: color .3s; }
.ft ul a:hover { color: var(--cu-hi); }
.ft-contact p { margin-bottom: 10px; font-size: 14px; }
.ft-contact a { display: flex; align-items: flex-start; gap: 10px; color: var(--tx-2); transition: color .3s; }
.ft-contact a:hover { color: var(--cu-hi); }
.ft-contact .ic { color: var(--cu); margin-top: 4px; width: 16px; height: 16px; }
.ft-bot { display: flex; justify-content: space-between; gap: 16px; padding-top: 24px; padding-bottom: 28px; border-top: 1px solid var(--line); font: 500 12px/1 var(--cond); letter-spacing: .2em; color: var(--tx-3); }
.ft-bot a:hover { color: var(--cu-hi); }

/* floating contact */
.ic-line { width: 20px; height: 20px; }
/* 回到最上方：捲動後出現在預約按鈕下方，預約按鈕跟著往上移 */
.to-top { position: fixed; right: 24px; bottom: 24px; z-index: 40; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; background: rgba(18,16,14,.86); border: 1px solid var(--line-2); color: #e9e2d9; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity .35s, transform .35s var(--ease), visibility .35s, border-color .3s, color .3s; }
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--cu); color: var(--cu-hi); transform: translateY(-3px); }
.to-top .ic { width: 20px; height: 20px; }
body:has(.to-top.show) .fab { bottom: 80px; }
/* 右下角「預約諮詢」：銅色膠囊＋外擴光圈＋定時掠過的光澤，吸引點擊 */
.fab { position: fixed; right: 24px; bottom: 24px; z-index: 40; border-radius: 999px; animation: fabIn .8s 1.6s var(--ease) both; transition: bottom .35s var(--ease); }
.fab::before { content: ""; position: absolute; inset: 0; border-radius: inherit; border: 1px solid var(--cu-hi); animation: ring 4s ease-out infinite; pointer-events: none; }
.fab-in { position: relative; display: flex; align-items: center; gap: 10px; height: 58px; padding: 0 26px 0 20px; border-radius: inherit; overflow: hidden; background: var(--cu-grad); background-size: 220% 100%; color: #160f0a; font-weight: 700; font-size: 15px; letter-spacing: .14em; box-shadow: 0 14px 34px rgba(0,0,0,.55), 0 0 0 1px rgba(255,230,205,.25) inset; transition: transform .4s var(--ease), background-position .8s var(--ease), box-shadow .4s; }
/* 奔馳中的超跑：輪子持續轉、速度線與路面往後流、車身微微起伏；滑過時加速 */
.run-car { flex: none; overflow: visible; --spd: 1; }
/* 右下角：按鈕本身就是跑車（沒有膠囊底） */
.fab.fab-car { width: 210px; height: 106px; border-radius: 0; }
.fab-car::before { display: none; }
.fc-in { position: absolute; left: 0; right: 0; bottom: 0; height: 72px; display: block; transition: transform .6s var(--ease); }
.fc-svg { position: absolute; inset: 0; width: 100%; height: 100%; filter: drop-shadow(0 6px 10px rgba(0,0,0,.55)); }
/* 「預約諮詢」對話框：在車子正上方、尾巴指向車頂，跟車子是同一個區塊（不浮動，文字保持清晰穩定） */
.fc-tag { position: absolute; top: 0; left: 35px; width: 140px; justify-content: center; display: flex; align-items: center; gap: 8px; height: 34px; padding: 0;
  border-radius: 999px; border: 1px solid rgba(230,180,139,.55); background: #15110e; color: var(--cu-hi);
  font-size: 14px; font-weight: 600; letter-spacing: .18em; white-space: nowrap; box-shadow: 0 10px 22px rgba(0,0,0,.5);
  -webkit-font-smoothing: antialiased; transition: border-color .3s, color .3s, box-shadow .3s, left .6s var(--ease); }
.fc-tag::after { content: ""; position: absolute; left: 50%; bottom: -6px; width: 10px; height: 10px; margin-left: -5px; background: #15110e;
  border-right: 1px solid rgba(230,180,139,.55); border-bottom: 1px solid rgba(230,180,139,.55); transform: rotate(45deg); transition: border-color .3s; }
.fc-tag .ic-line { width: 18px; height: 18px; }
.fab-car:hover .fc-tag { left: 41px; border-color: var(--cu-hi); color: #f6d2ae; box-shadow: 0 10px 26px rgba(0,0,0,.55), 0 0 18px rgba(230,180,139,.28); }
.fab-car:hover .fc-tag::after { border-color: var(--cu-hi); }
.fc-beam { opacity: 0; transition: opacity .4s; }
/* 車門上的 AKi 標誌：用 LOGO 的形狀做成深色貼紙 */
.fc-badge { position: absolute; left: calc(56.5% - 27px); top: calc(55% - 2.6px); width: 15.4px; height: 5.2px; pointer-events: none;
  background: linear-gradient(180deg, #3b2415, #170d07);
  -webkit-mask: url(/assets/img/logo-mark.png) center / contain no-repeat; mask: url(/assets/img/logo-mark.png) center / contain no-repeat; }
.fc-sheen { animation: fc-sheen 10s 3s ease-in-out infinite; }
@keyframes fc-sheen { 0% { transform: translateX(0); } 15%, 100% { transform: translateX(110px); } }
.fab-car:hover .fc-in { transform: translateX(6px); }
.fab-car:hover .fc-beam { opacity: 1; }
.rc-wh { transform-box: fill-box; transform-origin: 50% 50%; animation: wheel calc(.7s / var(--spd)) linear infinite; }
.rc-speed { opacity: .65; }
.rc-speed path { animation: rc-speed calc(1.1s / var(--spd)) linear infinite; }
.rc-speed path:nth-child(2) { animation-delay: -.4s; }
.rc-speed path:nth-child(3) { animation-delay: -.8s; }
.rc-road { animation: rc-road calc(.85s / var(--spd)) linear infinite; }
.rc-hl { transition: filter .3s; }
.fab-car:hover .rc-hl { filter: drop-shadow(0 0 2px #fff); }
.fab:hover .run-car { --spd: 1.6; }
.fab:hover .rc-hl { filter: drop-shadow(0 0 2px #fff); }
@keyframes wheel { to { transform: rotate(360deg); } }
@keyframes rc-speed { from { transform: translateX(6px); opacity: 0; } 30% { opacity: 1; } to { transform: translateX(-10px); opacity: 0; } }
@keyframes rc-road { to { stroke-dashoffset: 11; } }
.fab:hover .fab-in { transform: translateY(-2px); background-position: 100% 0; box-shadow: 0 18px 40px rgba(0,0,0,.6), 0 0 28px rgba(230,180,139,.45); }
.sheen { position: absolute; inset: 0; background: linear-gradient(110deg, transparent 38%, rgba(255,245,232,.4) 50%, transparent 62%); transform: translateX(-130%); animation: sheen 8s 3s ease-in-out infinite; pointer-events: none; }
@keyframes ring { 0% { transform: scale(1); opacity: .45; } 70%, 100% { transform: scale(1.12, 1.3); opacity: 0; } }
@keyframes sheen { 0% { transform: translateX(-130%); } 18%, 100% { transform: translateX(130%); } }
@keyframes nudge { 0%, 92%, 100% { transform: rotate(0); } 94% { transform: rotate(-7deg); } 96% { transform: rotate(5deg); } 98% { transform: rotate(-2deg); } }
@keyframes fabIn { from { opacity: 0; transform: translateY(30px) scale(.9); } to { opacity: 1; transform: none; } }
.dock { display: none; }

/* reveal on scroll */
.js .rv { opacity: 0; transform: translateY(36px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); transition-delay: var(--d, 0ms); }
.js .rv.in { opacity: 1; transform: none; }

/* ── 隔音工程下拉選單 ── */
.nav-dd { position: relative; display: flex; }
.mega { position: absolute; top: 100%; left: 50%; width: min(860px, calc(100vw - 48px)); padding-top: 18px; transform: translate(-50%, 8px); opacity: 0; visibility: hidden; transition: opacity .3s, transform .35s var(--ease), visibility .3s; z-index: 5; }
.nav-dd:hover .mega, .nav-dd:focus-within .mega { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-in { display: grid; grid-template-columns: 230px 1fr; gap: 8px; padding: 10px; background: rgba(16,14,12,.96); border: 1px solid var(--line-2); border-radius: 22px; box-shadow: 0 40px 80px rgba(0,0,0,.6); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.nav .mega a { flex-direction: row; align-items: center; padding: 0; letter-spacing: .06em; }
.nav .mega a::after { display: none; }
.mega-all { flex-direction: column !important; align-items: flex-start !important; justify-content: flex-end; gap: 8px; padding: 26px 22px !important; border-radius: 16px; background: linear-gradient(160deg, rgba(192,138,94,.22), rgba(192,138,94,.04)), var(--bg-3); color: var(--tx) !important; }
/* 服務項目總覽卡：游標光暈＋流光邊框＋背景浮現＋聲波撫平 */
@property --ang { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
.mega-all { position: relative; overflow: hidden; isolation: isolate; min-height: 250px; transition: transform .5s var(--ease), box-shadow .5s; }
.mega-all > small, .mega-all > b, .mega-all > span:not(.ma-bg):not(.ma-glow), .mega-all > i { position: relative; z-index: 2; }
.ma-bg { position: absolute; inset: 0; z-index: 0; opacity: 0; transition: opacity .7s; }
.ma-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.18); filter: grayscale(.4) brightness(.45); transition: transform 2.4s var(--ease); }
.ma-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(14,12,10,.55), rgba(14,12,10,.92) 75%); }
.ma-glow { position: absolute; inset: 0; z-index: 1; opacity: 0; transition: opacity .4s; background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 30%), rgba(240,196,156,.30), transparent 65%); }
.mega-all::before { content: ""; position: absolute; inset: 0; z-index: 3; border-radius: inherit; padding: 1px; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: conic-gradient(from var(--ang), transparent 0deg 250deg, rgba(240,196,156,.2) 280deg, #f6d2ae 330deg, transparent 360deg);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  animation: spin 3.2s linear infinite; }
@keyframes spin { to { --ang: 360deg; } }
.ma-wave { position: absolute; left: 22px; right: 22px; bottom: 18px; height: 22px; width: calc(100% - 44px); z-index: 2; overflow: visible; }
.ma-wave polyline { fill: none; stroke: var(--cu); stroke-width: 1.4; vector-effect: non-scaling-stroke; transform-box: fill-box; transform-origin: 50% 50%; opacity: .55; transition: transform 1.4s var(--ease), stroke .6s, opacity .6s; }
.mega-all:hover, .mega-all:focus-visible { box-shadow: 0 18px 40px rgba(0,0,0,.45), inset 0 0 0 1px rgba(230,180,139,.25); }
.mega-all:hover .ma-bg, .mega-all:focus-visible .ma-bg { opacity: 1; }
.mega-all:hover .ma-bg img, .mega-all:focus-visible .ma-bg img { transform: scale(1.02); }
.mega-all:hover .ma-glow, .mega-all:hover::before, .mega-all:focus-visible::before { opacity: 1; }
.mega-all:hover .ma-wave polyline, .mega-all:focus-visible .ma-wave polyline { transform: scaleY(.06); stroke: #f6d2ae; opacity: 1; }
.mega-all:hover b { background: var(--cu-grad); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shine-tx 2.4s linear infinite; }
@keyframes shine-tx { to { background-position: -200% 0; } }
.mega-all i { transition: gap .4s var(--ease), color .3s; }
.mega-all:hover i { gap: 14px; color: #f6d2ae; }
.mega-all i { margin-bottom: 30px; }
.mega-all small { font: 500 11px/1 var(--cond); letter-spacing: .28em; color: var(--cu-hi) !important; margin: 0 !important; }
.mega-all b { font: 600 22px/1.3 var(--serif); letter-spacing: .08em; }
.mega-all span { font-size: 13px; line-height: 1.8; color: var(--tx-2); }
.mega-all i { font-style: normal; display: inline-flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 13px; color: var(--cu-hi); }
.mega-all i .ic { width: 15px; height: 15px; }
.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.mega-grid a { gap: 14px; padding: 10px !important; border-radius: 14px; color: var(--tx) !important; transition: background .25s; }
.mega-grid a:hover, .mega-grid a.on { background: var(--bg-3); }
.mg-img { flex: none; width: 76px; height: 56px; border-radius: 10px; overflow: hidden; }
.mg-img img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); transition: transform .6s var(--ease); }
.mega-grid a:hover .mg-img img { transform: scale(1.08); }
.mg-tx { display: flex; flex-direction: column; gap: 2px; text-align: left; }
.mg-tx small { font: 500 10px/1.4 var(--cond) !important; letter-spacing: .2em !important; color: var(--cu) !important; margin: 0 !important; }
.mg-tx b { font-weight: 500; font-size: 15px; }
.mg-tx em { font-style: normal; font-size: 12px; color: var(--tx-3); letter-spacing: .08em; }
.dr-grp { display: grid; grid-template-columns: 1fr auto; align-items: center; border-bottom: 1px solid var(--line); }
.drawer nav .dr-grp > a { border-bottom: 0; }
.dr-tg { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; color: var(--tx-2); }
.dr-tg .ic { transition: transform .3s; }
.dr-tg[aria-expanded="true"] .ic { transform: rotate(180deg); }
.dr-sub { grid-column: 1 / -1; display: grid; padding: 0 0 14px 4px; }
.dr-sub[hidden] { display: none; }
.drawer nav .dr-sub a { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 8px 0; border: 0; font: 400 14px/1.4 var(--sans); letter-spacing: .08em; color: var(--tx-2); }
.drawer nav .dr-sub a small { font: 400 11px var(--sans); letter-spacing: .04em; opacity: 1; }
/* 手機選單質感特效（只用 transform/opacity）：
   開啟時左緣銅色光掃下、項目依序滑入；目前頁銅色標記；按壓時銅線掃過＋微光；子選單依序展開 */
.drawer::before { content: ""; position: absolute; left: 0; top: 0; width: 1px; height: 40%; background: linear-gradient(180deg, transparent, var(--cu-hi), transparent); opacity: 0; animation: drSweep 1.1s .1s var(--ease) both; pointer-events: none; }
@keyframes drSweep { 0% { opacity: 0; transform: translateY(-40%); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(260%); } }
.drawer nav > *, .drawer-ft > * { animation: drItem .6s var(--ease) both; }
.drawer nav > :nth-child(1) { animation-delay: .08s; } .drawer nav > :nth-child(2) { animation-delay: .13s; }
.drawer nav > :nth-child(3) { animation-delay: .18s; } .drawer nav > :nth-child(4) { animation-delay: .23s; }
.drawer nav > :nth-child(5) { animation-delay: .28s; } .drawer nav > :nth-child(6) { animation-delay: .33s; }
.drawer nav > :nth-child(7) { animation-delay: .38s; }
.drawer-ft > * { animation-delay: .42s; } .drawer-ft > :nth-child(2) { animation-delay: .47s; } .drawer-ft > :nth-child(3) { animation-delay: .52s; }
@keyframes drItem { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }
.drawer nav a { position: relative; -webkit-tap-highlight-color: transparent; transition: color .3s, padding-left .35s var(--ease); }
.drawer nav > a::after, .drawer nav .dr-grp::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, var(--cu-hi), rgba(230,180,139,0)); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease); }
.drawer nav .dr-grp { position: relative; }
.drawer nav > a:active::after, .drawer nav .dr-grp:active::after, .drawer nav > a.on::after, .drawer nav .dr-grp:has(> a.on)::after { transform: scaleX(1); }
.drawer nav > a:active, .drawer nav .dr-grp > a:active { padding-left: 8px; color: var(--cu-hi); }
.drawer nav > a:active small, .drawer nav .dr-grp > a:active small { color: var(--cu); }
.drawer nav a.on::before { content: ""; position: absolute; left: -20px; top: 50%; width: 3px; height: 18px; margin-top: -9px; border-radius: 0 3px 3px 0; background: var(--cu-grad); box-shadow: 0 0 10px rgba(230,180,139,.5); }
.drawer nav a.on small { color: var(--cu); opacity: 1; }
.drawer nav > a:active, .drawer nav .dr-grp > a:active { background: linear-gradient(90deg, rgba(192,138,94,.12), transparent 70%); }
.dr-sub:not([hidden]) a { animation: drSub .45s var(--ease) both; }
.dr-sub a:nth-child(2) { animation-delay: .04s; } .dr-sub a:nth-child(3) { animation-delay: .08s; } .dr-sub a:nth-child(4) { animation-delay: .12s; }
.dr-sub a:nth-child(5) { animation-delay: .16s; } .dr-sub a:nth-child(6) { animation-delay: .2s; } .dr-sub a:nth-child(7) { animation-delay: .24s; }
@keyframes drSub { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.drawer nav .dr-sub a { position: relative; padding-left: 12px; border-left: 1px solid var(--line-2); transition: border-color .3s, color .3s; }
.drawer nav .dr-sub a:active { border-left-color: var(--cu-hi); color: var(--tx); }

/* ── 麵包屑 ── */
.crumb { display: flex; flex-wrap: wrap; gap: 6px; font-size: 13px; letter-spacing: .08em; color: var(--tx-3); margin-bottom: 22px; }
.crumb a { color: var(--tx-2); transition: color .3s; }
.crumb a:hover { color: var(--cu-hi); }
.crumb a + a::before { content: "/"; margin-right: 6px; color: var(--tx-3); }

/* ── 服務頁標題 ── */
.ph-sub { display: block; font: 400 .36em/1.6 var(--sans); font-style: normal; letter-spacing: .24em; color: var(--tx-2); margin-top: 10px; }
.zone-intro .zone-grid { align-items: start; }

/* ── 案例列表 ── */
.blog { padding-top: 48px; }
.blog-bar { position: sticky; top: var(--hd); z-index: 20; padding: 14px 0; background: rgba(11,10,9,.9); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
/* 搜尋列：三個下拉＋關鍵字＋搜尋鈕 */
.finder { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.25fr) 64px; gap: 10px; padding: 10px; border: 1px solid var(--line-2); border-radius: 20px; background: linear-gradient(120deg, rgba(192,138,94,.08), rgba(192,138,94,0) 60%), var(--bg-2); }
.fd { position: relative; display: flex; flex-direction: column; justify-content: center; gap: 4px; min-height: 64px; padding: 10px 44px 10px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); cursor: pointer; transition: border-color .3s, box-shadow .3s; }
.fd:hover { border-color: var(--line-2); }
.fd:focus-within, .fd.set { border-color: var(--cu); box-shadow: 0 0 0 3px rgba(192,138,94,.12); }
.fd small { font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--tx); transition: color .3s; }
.fd:focus-within small, .fd.set small { color: var(--cu-hi); }
.fd select, .fd input { width: 100%; min-width: 0; padding: 0; background: none; border: 0; outline: 0; color: var(--tx-2); font: 400 15px/1.4 var(--sans); letter-spacing: .04em; appearance: none; -webkit-appearance: none; cursor: pointer; text-overflow: ellipsis; }
.fd select:disabled { opacity: .45; cursor: not-allowed; }
.fd.set select, .fd input:not(:placeholder-shown) { color: var(--tx); }
.fd select option, .fd select optgroup { background: var(--bg-2); color: var(--tx); }
.fd input { cursor: text; }
.fd input::placeholder { color: var(--tx-3); }
.fd input::-webkit-search-cancel-button { display: none; }
.fd-chev { position: absolute; right: 16px; top: 50%; translate: 0 -50%; width: 18px; height: 18px; color: var(--cu-hi); pointer-events: none; transition: transform .3s; }
.fd:focus-within .fd-chev { transform: rotate(180deg); }
.fd-q { padding-right: 18px; }
.fd-go { display: grid; place-items: center; border-radius: 14px; background: var(--cu-grad); background-size: 200% 100%; color: #160f0a; transition: background-position .6s var(--ease), transform .3s; }
.fd-go:hover { background-position: 100% 0; transform: translateY(-1px); }
.fd-go .ic { width: 24px; height: 24px; stroke-width: 2; }
.finder-sum { display: flex; align-items: center; gap: 14px; margin: 36px 0 22px; font-size: 15px; color: var(--tx-2); letter-spacing: .08em; scroll-margin-top: calc(var(--hd) + 120px); }
.finder-sum b { font: 500 22px var(--cond); color: var(--cu-hi); }
.finder-reset { display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 13px; color: var(--tx-2); transition: border-color .3s, color .3s; }
.finder-reset:hover { border-color: var(--cu); color: var(--cu-hi); }
.finder-reset[hidden] { display: none; }
.finder-reset .ic { width: 14px; height: 14px; }
.pc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pc { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: var(--bg-2); transition: border-color .4s, transform .5s var(--ease), box-shadow .5s; }
.pc[hidden] { display: none; }
.pc:hover { border-color: var(--cu-lo); transform: translateY(-4px); box-shadow: 0 24px 50px rgba(0,0,0,.45); }
.pc-img { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-3); }
.pc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease), filter .6s; filter: saturate(.9); }
.pc:hover .pc-img img { transform: scale(1.05); filter: none; }
.pc-ph { display: grid; place-items: center; height: 100%; color: var(--tx-3); }
.pc-ph .ic { width: 36px; height: 36px; }
.pc-tx { display: flex; flex-direction: column; gap: 10px; padding: 20px 22px 22px; flex: 1; }
.pc-tx small { display: flex; align-items: center; gap: 10px; font: 500 13px/1 var(--cond); letter-spacing: .14em; color: var(--tx-3); }
.pc-tx small b { font-weight: 600; color: var(--cu-hi); letter-spacing: .18em; }
.pc-tx h3 { font: 500 17px/1.6 var(--sans); letter-spacing: .04em; color: var(--tx); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pc-tx p { color: var(--tx-2); font-size: 15px; line-height: 1.9; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.pc-meta { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 6px; font-size: 13px; color: var(--tx-3); }
.pc-meta .ic { width: 15px; height: 15px; }
.pc-big { display: grid; grid-template-columns: 1.25fr 1fr; margin-bottom: 24px; }
.pc-big .pc-img { aspect-ratio: auto; min-height: 340px; }
.pc-big .pc-tx { justify-content: center; padding: clamp(28px, 4vw, 52px); gap: 16px; }
.pc-big h3 { font: 600 clamp(22px, 2.4vw, 30px)/1.45 var(--serif); letter-spacing: .04em; -webkit-line-clamp: 3; }
.blog-empty { text-align: center; padding: 60px 0; color: var(--tx-2); }
.blog-empty a { color: var(--cu-hi); border-bottom: 1px solid var(--cu-lo); }
.blog-more { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-top: 48px; }
.blog-more p { font: 500 15px var(--cond); letter-spacing: .14em; color: var(--tx-3); }
.blog-more[hidden] { display: none; }

/* ── 文章頁 ── */
.post-hd { padding: calc(var(--hd) + 64px) 0 40px; background: radial-gradient(ellipse 60% 100% at 80% 0%, rgba(192,138,94,.12), transparent 70%); }
.post-hd h1 { font: 600 clamp(30px, 4.4vw, 54px)/1.3 var(--serif); letter-spacing: .04em; max-width: 960px; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; margin-top: 26px; font-size: 14px; color: var(--tx-2); letter-spacing: .06em; }
.post-meta > span { display: inline-flex; align-items: center; gap: 8px; }
.post-meta .ic { width: 16px; height: 16px; color: var(--cu); }
.post-zones { gap: 8px !important; }
.post-zones a { padding: 4px 12px; border-radius: 999px; border: 1px solid var(--cu-lo); color: var(--cu-hi); font-size: 13px; transition: background .3s; }
.post-zones a:hover { background: rgba(192,138,94,.14); }
/* 封面圖放在本文欄內，與右側本文目錄同高並排，不再滿版 */
.prose > .post-cover { margin: 0 0 2em; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); }
.post-cover img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.prose > .post-cover + h2 { margin-top: 0; }
.post-grid { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; padding-bottom: clamp(64px, 8vw, 110px); }
/* 隔音工程頁：側欄放右邊 */
.post-grid.side-r { grid-template-columns: minmax(0, 1fr) 300px; }
.side-r .post-side { order: 2; }
.side-r .prose { order: 1; }
.post-side { position: sticky; top: calc(var(--hd) + 24px); display: grid; gap: 20px; max-height: calc(100vh - var(--hd) - 48px); overflow-y: auto; scrollbar-width: none; }
.post-side::-webkit-scrollbar { display: none; }
.toc { padding: 22px 22px 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-2); }
.toc p, .side-svcs p { font-size: 12px; letter-spacing: .24em; color: var(--cu); margin-bottom: 12px; }
.toc ol { display: grid; gap: 2px; counter-reset: t; max-height: 42vh; overflow-y: auto; scrollbar-width: none; }
.toc ol::-webkit-scrollbar { display: none; }
.toc a { display: grid; grid-template-columns: 26px 1fr; padding: 7px 0; font-size: 14px; line-height: 1.6; color: var(--tx-3); transition: color .25s; }
.toc a::before { counter-increment: t; content: counter(t, decimal-leading-zero); font: 500 12px/1.9 var(--cond); color: var(--tx-3); }
.toc a:hover, .toc a.on { color: var(--tx); }
.toc a.on::before { color: var(--cu-hi); }
.side-cta { padding: 26px 22px; border-radius: 18px; background: linear-gradient(160deg, rgba(192,138,94,.2), rgba(192,138,94,.03)), var(--bg-2); border: 1px solid var(--cu-lo); }
.side-cta .eyebrow { margin-bottom: 12px; font-size: 11px; }
.side-cta .eyebrow::before { width: 20px; }
.side-cta h3 { font: 600 19px/1.5 var(--serif); letter-spacing: .06em; margin-bottom: 8px; }
.side-cta > p:not(.eyebrow) { font-size: 14px; color: var(--tx-2); line-height: 1.8; margin-bottom: 18px; }
.side-cta .btn { width: 100%; height: 48px; padding: 0 16px; font-size: 14px; }
.side-tel { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 12px; font: 500 16px var(--cond); letter-spacing: .1em; color: var(--tx-2); }
.side-tel:hover { color: var(--cu-hi); }
/* 文章側欄：分類＋標籤（整欄順排，只有預約卡片黏住） */
.post-side.side-flow { position: static; align-self: stretch; display: flex; flex-direction: column; gap: 20px; max-height: none; overflow: visible; }
.side-stick { position: sticky; top: calc(var(--hd) + 24px); }
.side-box { position: relative; padding: 22px 22px 20px; border-radius: 18px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(192,138,94,.06), transparent 120px), var(--bg-2); overflow: hidden; }
.side-box::before { content: ""; position: absolute; top: 0; left: 22px; right: 22px; height: 1px; background: linear-gradient(90deg, transparent, var(--cu-hi), transparent); opacity: .55; }
.sb-hd { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; font-size: 12px; letter-spacing: .24em; color: var(--cu); }
.sb-hd .ic { width: 16px; height: 16px; }
.sb-hd a { margin-left: auto; font: 500 12px/1 var(--cond); letter-spacing: .12em; color: var(--tx-3); padding: 5px 10px; border: 1px solid var(--line-2); border-radius: 999px; transition: color .3s, border-color .3s; }
.sb-hd a:hover { color: var(--cu-hi); border-color: var(--cu-lo); }
.cat-list { display: grid; }
.cat-list > li + li { border-top: 1px solid var(--line); }
.cat-row { position: relative; display: flex; align-items: baseline; gap: 8px; padding: 10px 2px; transition: padding .35s var(--ease), color .3s; }
.cat-row::before { content: ""; position: absolute; left: -22px; top: 50%; width: 3px; height: 0; border-radius: 0 3px 3px 0; background: var(--cu-grad); transform: translateY(-50%); transition: height .35s var(--ease); }
.cat-list b { font: 600 15px/1.3 var(--cond); letter-spacing: .1em; color: var(--tx); }
.cat-list small { font-size: 12px; color: var(--tx-3); letter-spacing: .1em; }
.cat-list em, .cat-sub em, .cat-more summary em { margin-left: auto; font: 500 12px/1 var(--cond); font-style: normal; color: var(--tx-3); padding: 4px 8px; border-radius: 999px; background: rgba(255,255,255,.04); min-width: 30px; text-align: center; }
.cat-row:hover { padding-left: 8px; }
.cat-row:hover b, .cat-br[open] > .cat-row b { color: var(--cu-hi); }
.cat-list > li.on > .cat-row::before, .cat-list > li.on .cat-row::before, .cat-row:hover::before { height: 22px; }
summary.cat-row { cursor: pointer; list-style: none; align-items: center; }
summary.cat-row::-webkit-details-marker { display: none; }
summary.cat-row > .ic { width: 15px; height: 15px; margin-left: 2px; color: var(--tx-3); transition: transform .35s var(--ease), color .3s; }
.cat-br[open] > summary.cat-row > .ic { transform: rotate(180deg); color: var(--cu); }
.cat-br[open] > .cat-sub { animation: catOpen .4s var(--ease); }
@keyframes catOpen { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.cat-sub a.cat-all { justify-content: space-between; color: var(--cu-hi); font-size: 12px; letter-spacing: .12em; }
.cat-sub a.cat-all .ic { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.cat-sub a.cat-all:hover .ic { transform: translateX(3px); }
.cat-list > li.on .cat-row b { background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cat-list > li.on .cat-row em { background: var(--cu-grad); color: #160f0a; font-weight: 600; }
.cat-sub { display: grid; gap: 2px; max-height: 280px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--cu-lo) transparent; margin: 0 0 10px 4px; padding-left: 14px; border-left: 1px solid var(--cu-lo); }
.cat-sub a { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 10px; font-size: 13px; color: var(--tx-2); transition: background .3s, color .3s; }
.cat-sub a:hover { background: rgba(192,138,94,.08); color: var(--tx); }
.cat-sub a.on { background: rgba(192,138,94,.14); color: var(--cu-hi); }
.cat-sub a.on em { color: var(--cu-hi); }
.cat-more { margin-top: 4px; border-top: 1px solid var(--line); }
.cat-more summary { display: flex; align-items: center; gap: 8px; padding: 12px 2px 4px; font-size: 13px; letter-spacing: .14em; color: var(--tx-2); cursor: pointer; list-style: none; }
.cat-more summary::-webkit-details-marker { display: none; }
.cat-more summary .ic { width: 16px; height: 16px; color: var(--cu); transition: transform .35s var(--ease); }
.cat-more summary em { margin-left: auto; }
.cat-more[open] summary .ic { transform: rotate(180deg); }
.cat-more summary:hover { color: var(--cu-hi); }
.cat-more .cat-list { max-height: 300px; overflow-y: auto; margin-top: 6px; scrollbar-width: thin; scrollbar-color: var(--cu-lo) transparent; }
.cat-topics { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.cat-topics small { width: 100%; font-size: 11px; letter-spacing: .24em; color: var(--tx-3); margin-bottom: 4px; }
.cat-topics a { padding: 5px 12px; border-radius: 999px; font-size: 12px; color: var(--tx-2); background: var(--bg-3); border: 1px solid var(--line); transition: color .3s, border-color .3s; }
.cat-topics a:hover, .cat-topics a.on { color: var(--cu-hi); border-color: var(--cu-lo); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a { position: relative; display: inline-flex; align-items: center; gap: 3px; padding: 6px 13px 6px 11px; border-radius: 10px; font-size: 13px; letter-spacing: .04em; color: var(--tx-2); background: var(--bg-3); border: 1px solid var(--line-2); overflow: hidden; transition: color .3s, border-color .3s, transform .35s var(--ease), box-shadow .35s; }
.tag-cloud a i { font: 600 13px/1 var(--cond); font-style: normal; color: var(--cu); }
.tag-cloud a::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 35%, rgba(246,210,174,.22) 50%, transparent 65%); transform: translateX(-120%); transition: transform .7s var(--ease); }
.tag-cloud a:hover { color: var(--tx); border-color: var(--cu-lo); transform: translateY(-2px); box-shadow: 0 8px 18px rgba(0,0,0,.35); }
.tag-cloud a:hover::after { transform: translateX(120%); }
.side-svcs { padding: 20px 22px; border: 1px solid var(--line); border-radius: 18px; }
.side-svcs a { display: grid; grid-template-columns: 28px 1fr; padding: 8px 0; font-size: 15px; color: var(--tx); border-top: 1px solid var(--line); }
.side-svcs a:first-of-type { border-top: 0; }
.side-svcs a span { font: 500 13px/1.7 var(--cond); color: var(--cu); }
.side-svcs a small { grid-column: 2; font-size: 12px; color: var(--tx-3); }
.side-svcs a:hover { color: var(--cu-hi); }

/* 文章內文排版 */
.prose { min-width: 0; max-width: 780px; font-size: 17px; line-height: 2.05; color: #cfc6bb; letter-spacing: .03em; }
.prose > * + * { margin-top: 1.15em; }
.prose h2 { position: relative; font: 600 clamp(23px, 2.4vw, 30px)/1.5 var(--serif); color: var(--tx); letter-spacing: .04em; margin-top: 2.6em; padding-top: 28px; scroll-margin-top: calc(var(--hd) + 24px); }
.prose h2::before { content: ""; position: absolute; top: 0; left: 0; width: 44px; height: 2px; background: var(--cu-grad); }
.prose > h2:first-child { margin-top: 0; }
.prose h3 { font: 600 20px/1.6 var(--sans); color: var(--tx); margin-top: 2em; letter-spacing: .04em; }
.prose h4 { font: 500 17px/1.7 var(--sans); color: var(--cu-hi); margin-top: 1.6em; }
.prose strong { color: var(--tx); font-weight: 600; }
.prose a { color: var(--cu-hi); border-bottom: 1px solid var(--cu-lo); transition: border-color .3s; }
.prose a:hover { border-color: var(--cu-hi); }
.prose ul, .prose ol { display: grid; gap: .5em; padding-left: 0; }
.prose ul > li, .prose ol > li { position: relative; padding-left: 1.8em; }
.prose ul > li::before { content: ""; position: absolute; left: .35em; top: .95em; width: 7px; height: 7px; border-radius: 50%; background: var(--cu); }
.prose ol { counter-reset: o; }
.prose ol > li::before { counter-increment: o; content: counter(o); position: absolute; left: 0; top: .45em; width: 1.35em; height: 1.35em; border-radius: 50%; display: grid; place-items: center; font: 600 12px/1 var(--cond); background: rgba(192,138,94,.16); color: var(--cu-hi); }
.prose li > p { margin: 0; }
.prose hr { border: 0; height: 1px; background: linear-gradient(90deg, var(--line-2), transparent); margin: 2.4em 0; }
.prose blockquote { padding: 18px 24px; border-left: 2px solid var(--cu); background: var(--bg-2); border-radius: 0 14px 14px 0; color: var(--tx); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { padding: 10px 14px; border: 1px solid var(--line-2); text-align: left; }
.prose th { background: var(--bg-3); color: var(--tx); }
.prose figure { margin-top: 1.6em; }
.prose figure img { width: 100%; height: auto; border-radius: 14px; cursor: zoom-in; background: var(--bg-3); }
.prose figure a { border: 0; }
.prose figcaption { margin-top: 10px; font-size: 13px; line-height: 1.6; color: var(--tx-3); text-align: center; letter-spacing: .08em; }
.prose .gallery { display: grid; gap: 12px; margin-top: 1.6em; }
.prose .gallery.g2 { grid-template-columns: 1fr 1fr; }
.prose .gallery.g3 { grid-template-columns: repeat(3, 1fr); }
.prose .gallery figure { margin: 0; }
.prose .gallery img { aspect-ratio: 4/3; object-fit: cover; }
.prose .yt { position: relative; aspect-ratio: 16/9; max-width: none; border-radius: 16px; overflow: hidden; background: #000; cursor: pointer; margin-top: 1.6em; }
.prose .yt img { width: 100%; height: 100%; object-fit: cover; opacity: .75; border-radius: 0; }
.prose .yt:hover img { opacity: .9; }
.prose .yt button { width: 76px; height: 76px; }
.prose .post-links { display: flex; flex-wrap: wrap; gap: 10px; padding: 22px; border-radius: 18px; background: var(--bg-2); border: 1px solid var(--line); }
.prose .post-links::before { content: "延伸閱讀"; width: 100%; font-size: 12px; letter-spacing: .24em; color: var(--cu); }
.prose .post-links a { display: inline-flex; align-items: center; min-height: 38px; padding: 6px 16px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 14px; line-height: 1.5; color: var(--tx); }
.prose .post-links a:hover { border-color: var(--cu); color: var(--cu-hi); }
.prose .scores { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.prose .scores div { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; border-radius: 16px; background: var(--bg-2); border: 1px solid var(--line); }
.prose .scores span { font-size: 13px; line-height: 1.6; color: var(--tx-3); }
.prose .scores b { font: 500 40px/1 var(--cond); background: var(--cu-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.post-ft { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; margin-top: 3em !important; padding-top: 28px; border-top: 1px solid var(--line); }
.post-tags, .share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.post-tags small, .share small { font-size: 12px; letter-spacing: .2em; color: var(--tx-3); margin-right: 4px; }
.prose .post-tags a { padding: 4px 14px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 13px; color: var(--tx-2); }
.prose .share a, .share button { width: 40px; height: 40px; display: inline-grid; place-items: center; border-radius: 50%; border: 1px solid var(--line-2); color: var(--tx-2); transition: border-color .3s, color .3s; }
.share button { width: auto; display: inline-flex; gap: 8px; padding: 0 14px; border-radius: 999px; font-size: 13px; }
.prose .share a:hover, .share button:hover { border-color: var(--cu); color: var(--cu-hi); }
.share .ic { width: 17px; height: 17px; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 2.4em !important; }
.prose .post-nav a { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; color: var(--tx); transition: border-color .3s; }
.prose .post-nav a:hover { border-color: var(--cu-lo); }
.post-nav small { font-size: 12px; letter-spacing: .16em; color: var(--tx-3); }
.post-nav b { font-weight: 500; font-size: 15px; line-height: 1.6; }
.pn-next { text-align: right; }

/* 燈箱 */
.lb { position: fixed; inset: 0; z-index: 70; display: grid; place-items: center; background: rgba(6,5,4,.94); opacity: 0; transition: opacity .25s; }
.lb.open { opacity: 1; }
.lb[hidden] { display: none; }
.lb img { max-width: min(92vw, 1400px); max-height: 82vh; border-radius: 10px; box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.lb p { position: absolute; left: 0; right: 0; bottom: 24px; text-align: center; font-size: 14px; color: var(--tx-2); letter-spacing: .08em; }
.lb button { position: absolute; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.06); border: 1px solid var(--line-2); color: var(--tx); transition: background .3s; }
.lb button:hover { background: rgba(192,138,94,.25); }
.lb .lb-x { top: 20px; right: 20px; }
.lb .lb-p { left: 20px; top: 50%; transform: translateY(-50%); }
.lb .lb-n { right: 20px; top: 50%; transform: translateY(-50%) scaleX(-1); }

@media (max-width: 1180px) {
  .pc-grid { grid-template-columns: repeat(2, 1fr); }
  .post-grid, .post-grid.side-r { grid-template-columns: 1fr; }
  .post-side { position: static; max-height: none; overflow: visible; order: 2; }
  .post-side .toc { display: none; }
  .side-stick { position: static; }
  .prose { max-width: none; }
}
@media (max-width: 900px) {
  .blog-bar { position: static; }
  .finder { grid-template-columns: 1fr 1fr; }
  .fd-go { grid-column: 1 / -1; min-height: 52px; }
  .pc-big { grid-template-columns: 1fr; }
  .pc-big .pc-img { min-height: 0; aspect-ratio: 16/10; }
    }
@media (max-width: 640px) {
  /* 手機版頁首主圖文字（關於 AKi、商品目錄等）整體縮小約 20%：標題 21px、說明 11.6px、眉標 9.2px */
  .ph .h-xl { font-size: 21px; }
  .ph .lead { font-size: 11.6px; line-height: 1.8; margin-top: 10px; }
  .ph .eyebrow { font-size: 9.2px; margin-bottom: 10px; }
  /* 關於 AKi 手機版：與商品目錄同高（標題一行、說明兩行），並加深暗色讓文字更清楚 */
  .ph-about .h-xl br { display: none; }
  .ph-about .ph-bg::after { background: linear-gradient(90deg, rgba(11,10,9,.94) 0%, rgba(11,10,9,.75) 55%, rgba(11,10,9,.45) 100%), linear-gradient(0deg, var(--bg), transparent 45%); }
  .pc-grid { grid-template-columns: 1fr; gap: 16px; }
  .pc { display: grid; grid-template-columns: 120px 1fr; border-radius: 14px; }
  .pc-img { aspect-ratio: auto; height: 100%; min-height: 110px; }
  .pc-tx { padding: 14px 14px 14px 16px; gap: 6px; }
  .pc-tx h3 { font-size: 15px; -webkit-line-clamp: 3; }
  .pc-meta { display: none; }
  .pc-big { display: flex; }
  .pc-big .pc-tx { padding: 20px; }
    .prose { font-size: 16px; line-height: 1.95; }
  .prose .gallery.g3 { grid-template-columns: 1fr 1fr; }
  .post-cover { border-radius: 16px; }
  .post-nav { grid-template-columns: 1fr; }
  .pn-next { text-align: left; }
  .lb .lb-p, .lb .lb-n { top: auto; bottom: 58px; transform: none; }
  .lb .lb-n { transform: scaleX(-1); }
}

/* ── 商品目錄 ── */
.shop-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.shop-tabs button { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 15px; letter-spacing: .08em; color: var(--tx-2); transition: border-color .3s, color .3s, background .3s; }
.shop-tabs button small { font: 500 13px/1 var(--cond); color: var(--tx-3); }
.shop-tabs button:hover { border-color: var(--cu); color: var(--tx); }
.shop-tabs button.on { background: var(--cu-grad); border-color: transparent; color: #160f0a; font-weight: 500; }
.shop-tabs button.on small { color: #3a2717; }
.prd-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prd { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: var(--bg-2); transition: border-color .4s, transform .5s var(--ease), box-shadow .5s; }
.prd[hidden] { display: none; }
.prd:hover { border-color: var(--cu-lo); transform: translateY(-4px); box-shadow: 0 24px 50px rgba(0,0,0,.45); }
.prd-img { aspect-ratio: 1; overflow: hidden; background: radial-gradient(circle at 50% 40%, #241f1a, #0f0d0b 75%); }
.prd-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.prd:hover .prd-img img { transform: scale(1.05); }
.prd-tx { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px 22px; flex: 1; }
.prd-tx small { font-size: 12px; letter-spacing: .2em; color: var(--cu); }
.prd-tx h3 { font: 600 17px/1.55 var(--sans); letter-spacing: .03em; color: var(--tx); }
.prd-tx p { font-size: 14px; line-height: 1.8; color: var(--tx-3); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.prd-tx .more { margin-top: auto; padding-top: 10px; }
.prd:hover .more { color: var(--cu-hi); gap: 14px; }
.shop-note { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 56px; padding: 26px 30px; border-radius: 20px; border: 1px solid var(--line); background: var(--bg-2); }
.shop-note > .ic { width: 40px; height: 40px; color: var(--cu-hi); stroke-width: 1.2; }
.shop-note div { flex: 1; min-width: 240px; }
.shop-note b { display: block; font: 600 19px/1.5 var(--serif); letter-spacing: .06em; }
.shop-note span { font-size: 14px; color: var(--tx-2); }
/* 商品頁 */
.prd-hd { padding: calc(var(--hd) + 48px) 0 clamp(56px, 7vw, 96px); background: radial-gradient(ellipse 60% 80% at 20% 0%, rgba(192,138,94,.1), transparent 70%); }
.prd-top { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.prd-main { aspect-ratio: 1; border-radius: 22px; overflow: hidden; border: 1px solid var(--line); background: radial-gradient(circle at 50% 40%, #241f1a, #0f0d0b 75%); }
.prd-main img { width: 100%; height: 100%; object-fit: contain; transition: opacity .3s; }
.prd-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 10px; margin-top: 12px; }
.prd-thumbs button { aspect-ratio: 1; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); opacity: .6; transition: opacity .3s, border-color .3s; }
.prd-thumbs button:hover { opacity: .9; }
.prd-thumbs button.on { opacity: 1; border-color: var(--cu); }
.prd-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.prd-info { position: sticky; top: calc(var(--hd) + 24px); }
.prd-info h1 { font: 600 clamp(28px, 3.4vw, 42px)/1.35 var(--serif); letter-spacing: .04em; }
.prd-tag { margin-top: 18px; color: var(--tx-2); line-height: 1.9; }
.prd-points { display: grid; gap: 10px; margin-top: 26px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.prd-points li { display: flex; gap: 12px; font-size: 15px; }
.prd-points .ic { color: var(--cu); margin-top: 5px; }
.prd-info .btns { margin-top: 28px; }
.prd-note { margin-top: 18px; font-size: 13px; color: var(--tx-3); line-height: 1.8; }
.prd-body .prose { max-width: 860px; }
.prd-body .prose h3 { margin-top: 1.4em; }
@media (max-width: 1180px) { .prd-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) {
  .prd-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .prd-top { grid-template-columns: 1fr; }
  .prd-info { position: static; }
  .prd-tx { padding: 14px 16px 16px; }
  .prd-tx h3 { font-size: 15px; }
}

/* responsive */
@media (max-width: 1180px) {
  .nav, .hd-tel { display: none; }
  .burger { display: inline-flex; }
  .hd-act { margin-left: auto; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 48px; }
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .ft-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  :root { --hd: 64px; }
  .logo-mk { width: 64px; }
  .logo-t { display: none; }
  .intro-grid, .dg-grid, .why-grid, .zone-grid, .duo, .map-grid, .stores { grid-template-columns: 1fr; }
  .zone-r .zone-gal { order: 0; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .care-grid { grid-template-columns: 1fr 1fr; }
  .recent { grid-template-columns: 1fr; }
  .recent li:nth-child(n) { padding-left: 4px; border-left: 0; }
  .map { position: relative; top: 0; aspect-ratio: 1; }
  .store-main { grid-row: auto; }
  .dg-tabs { grid-template-columns: 1fr 1fr; }
  .dg-tabs button:nth-child(3) { border-left: 0; }
  .dg-tabs button:nth-child(n+3) { border-top: 1px solid var(--line); }
  .zone-no { font-size: 64px; }
}
@media (max-width: 640px) {
  body { font-size: 15px; padding-bottom: 58px; }
  .hd-act .btn { display: none; }
  .hero-in { padding-bottom: 36px; }
  .hero-stats { margin-bottom: 70px; }
  .hero-stats div { padding-top: 18px; }
  .hero-stats span { font-size: 12px; letter-spacing: .06em; }
  .btn { height: 50px; padding: 0 22px; }
  .btns .btn { flex: 1 1 100%; justify-content: center; }
  .svc-grid, .plan-grid, .case-grid { grid-template-columns: 1fr; }
  .case-img { aspect-ratio: 4/3; }
  .steps { grid-template-columns: 1fr 1fr; }
  .care-grid li { padding: 28px 20px; }
  .certs { gap: 10px; }
  .certs figure { padding: 5px; }
  .certs figure:nth-child(2) { transform: translateY(-20px); }
      .ft-grid { grid-template-columns: 1fr; gap: 36px; }
  .ft-bot { flex-direction: column; }
  .intro-img { padding: 0 0 22% 8%; }
  .cap { display: none; }
  .fab { display: none; }
  .to-top { right: 16px; bottom: 74px; width: 40px; height: 40px; }
  .dock { position: fixed; inset: auto 0 0; z-index: 45; height: 58px; display: grid; grid-template-columns: 1fr 1.4fr 1fr; background: rgba(11,10,9,.97); border-top: 1px solid var(--line); }
  .dock a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; font-size: 11px; letter-spacing: .1em; color: var(--tx-2); }
  /* 中間 LINE 預約諮詢：浮起的銅色按鈕＋光暈＋綠色在線點（只用 transform/opacity 動畫，捲動不重繪），按下回饋 */
  .dock .dock-cu { position: relative; overflow: hidden; margin: -9px 10px 0; border-radius: 14px 14px 0 0; background: var(--cu-grad); color: #160f0a; font-weight: 700; box-shadow: 0 -4px 14px rgba(230,180,139,.28); transition: transform .2s var(--ease); }
  .dock .dock-cu:active { transform: scale(.95); }
  .dock .dock-cu span { position: relative; z-index: 1; }
  .dock .dock-cu::after { content: ""; position: absolute; top: 8px; right: 10px; width: 7px; height: 7px; border-radius: 50%; background: #3ee07a; }
  .dock .dock-cu::before { content: ""; position: absolute; top: 8px; right: 10px; width: 7px; height: 7px; border-radius: 50%; border: 1.5px solid #3ee07a; box-sizing: border-box; animation: dockDot 3s ease-out infinite; }
  .dock .dock-cu .ic-line { width: 20px; height: 20px; animation: nudge 9s 4s ease-in-out infinite; }
  .dock .ic { width: 18px; height: 18px; }
}
@keyframes dockDot { 0% { transform: scale(1); opacity: .8; } 80%, 100% { transform: scale(2.8); opacity: 0; } }
/* 手機／平板捲動效能：固定或黏住的列不做即時背景模糊（每捲一格都要重算），改用較不透明的底色；
   首頁車子拿掉高頻抖動（在遮罩容器內會一直重繪） */
@media (max-width: 999px) {
  .hd.solid { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(11,10,9,.96); }
  .jump, .blog-bar { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(11,10,9,.97); }
  .plan { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(18,16,14,.92); }
  .hero-car img { animation: heroIn 2.4s var(--ease) both, ride 1.6s ease-in-out 2.4s infinite; }
}
@media (prefers-reduced-motion: reduce) {
  *:not(.hero-car img):not(.hero-fx):not(.fab):not(.sheen):not(.ic-line):not(.rev-row):not(.wv-g):not(.wv-pulse):not(.mega-all):not(.mega-all *):not(.run-car):not(.run-car *) *:not(.fab):not(.mega-all)::before, *:not(.fab):not(.mega-all):not(.nav a.on)::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .rv { opacity: 1; transform: none; }
  html { overflow-x: clip; scroll-behavior: auto; }
  .rev-row { animation-duration: 120s; }
}