/* ── 設計 token ───────────────────────────────────────────
   冷白／石墨兩套底（跟著系統），唯一強調色取自桌寵屏幕的 Aqua 藍。
   圓角兩級：面板 28px（跟機身屏幕同一種圓角方），可按的東西一律膠囊。
   字體只用系統字（SF + 蘋方），不載遠端字型。 */
:root{
  --bg:#eceef1; --surface:#f7f8fa; --ink:#15181c; --muted:#5b626b; --line:rgba(21,24,28,.1);
  --accent:#2a63d4; --accent-ink:#fff; --panel:#dfe3e8; --code:#1b1e23;
  --r:28px; --pill:999px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang TC","Noto Sans TC",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,monospace;
  --spring:cubic-bezier(.2,.9,.25,1.05);
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0f1114; --surface:#171a1e; --ink:#eef0f3; --muted:#9aa1aa; --line:rgba(238,240,243,.1);
  --accent:#5b8ff5; --accent-ink:#0b1730; --panel:#1d2126; --code:#0b0d10;}}

*{box-sizing:border-box} html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--font);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3{margin:0;letter-spacing:-.02em;line-height:1.12;font-weight:650}
h2{font-size:clamp(30px,4vw,48px)}
p{margin:0}
code{font-family:var(--mono);font-size:.92em}
.lede{color:var(--muted);max-width:34em}
.btn{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--pill);
  font-weight:600;font-size:16px;text-decoration:none;white-space:nowrap;transition:transform .2s var(--spring),background .2s}
.btn:active{transform:scale(.975)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{box-shadow:inset 0 0 0 1px var(--line);background:var(--surface)}
section{padding:112px 0}
.skip{position:absolute;left:16px;top:-60px;z-index:60;padding:10px 16px;border-radius:var(--pill);background:var(--ink);color:var(--bg);text-decoration:none;font-weight:600}
.skip:focus{top:12px}

/* ── 頁首 ── */
header{position:sticky;top:0;z-index:20;backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);
  background:color-mix(in srgb,var(--bg) 78%,transparent)}
header .wrap{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none;letter-spacing:-.01em}
.brand img{width:26px;height:26px}
nav{display:flex;gap:22px;font-size:15px;color:var(--muted)} nav a{text-decoration:none} nav a:hover{color:var(--ink)}
header .end{margin-left:auto;display:flex;gap:10px;align-items:center}
header .btn{height:36px;padding:0 16px;font-size:14px}
.langs{display:flex;gap:14px} .langs a{font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap} .langs a:hover{color:var(--ink)}

/* ── Hero：左字右機，機身就是可互動的桌寵 ── */
.hero{padding:40px 0 72px;min-height:calc(100dvh - 64px);display:flex;align-items:center}
.hero .wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(38px,4.6vw,62px)}
.hero h1 span{display:inline-block}
.hero .lede{margin:22px 0 32px;font-size:19px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero-bob{min-width:0}
.pet{position:relative;width:100%;aspect-ratio:1200/1316;max-width:560px;margin-left:auto;cursor:pointer;
  touch-action:manipulation;transition:transform .45s var(--spring)}
.pet img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity .16s linear}
.pet img.on{opacity:1}
.pet.press{transform:scale(.975)}
.pet::after{content:"";position:absolute;left:18%;right:18%;bottom:-2%;height:6%;border-radius:50%;
  background:radial-gradient(closest-side,rgba(20,30,50,.18),transparent);z-index:-1}

/* ── 為什麼是眼睛：左邊是時間線，右邊一雙會看人的眼睛 ── */
.why-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:start}
.why-text .lede{margin-top:16px}
.beats{list-style:none;margin:48px 0 0;padding:0;display:grid;gap:36px}
.beats li{display:grid;grid-template-columns:minmax(96px,auto) 1fr;gap:24px;align-items:start;padding-top:24px;border-top:1px solid var(--line)}
.beats .yr{font-size:clamp(40px,5vw,60px);font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums}
.beats h3{font-size:21px}
.beats p{color:var(--muted);margin-top:8px;font-size:16px}
.essay-close{margin-top:44px;font-size:19px;line-height:1.7;max-width:34em}
.why-eyes{position:sticky;top:104px}
.eyes-card{width:min(100%,340px);aspect-ratio:1;border-radius:var(--r);background:linear-gradient(160deg,#3a4c7c,#9e869c 55%,#d8a87c);
  box-shadow:0 24px 48px -24px rgba(40,50,90,.45);overflow:hidden}
.eyes-card svg{display:block;width:100%;height:100%}
.eyes-hint{margin-top:16px;max-width:340px;color:var(--muted);font-size:15px}

/* ── 表情：左邊固定一台，右邊一行一個觸發 ── */
.faces .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.faces .stick{position:sticky;top:96px}
.pet.still{cursor:default}
.faces .stick .pet{max-width:440px;margin:0}
.faces h2{margin-bottom:16px}
.rows{margin-top:36px;display:grid;gap:6px}
.row{all:unset;box-sizing:border-box;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:16px 20px;border-radius:18px;cursor:pointer;
  transition:background .2s}
.row:hover,.row:focus-visible,.row.on{background:var(--surface)}
.row:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.row .t{font-weight:600}.row .r{color:var(--muted);font-size:15px;text-align:right}

/* ── CarPlay：一塊深藍面板，畫資料怎麼走 ── */
.carplay .panel{border-radius:var(--r);padding:56px;background:linear-gradient(160deg,#173a7a,#0e2453 70%);color:#eef3ff}
.carplay .panel .lede{color:#b9c8ea;margin-top:16px}
.path{margin-top:44px;display:grid;grid-template-columns:auto minmax(48px,1fr) auto minmax(48px,1fr) auto;align-items:center;gap:14px}
.node{padding:14px 18px;border-radius:16px;background:rgba(255,255,255,.08);box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.node b{display:block;font-size:15px}.node span{font-size:13px;color:#b9c8ea}
/* 連線：細線加箭頭，亮點沿線流動。container 單位讓 transform 走完整條線。 */
.link{position:relative;height:22px;container-type:size;color:#8fb0ff}
.link::before{content:"";position:absolute;left:0;right:6px;top:50%;height:1px;background:linear-gradient(90deg,rgba(143,176,255,.15),rgba(143,176,255,.45))}
.link::after{content:"";position:absolute;right:1px;top:50%;width:8px;height:8px;margin-top:-4px;border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;transform:rotate(45deg)}
.dot{position:absolute;left:0;top:50%;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:#bcd2ff;box-shadow:0 0 10px 3px rgba(143,176,255,.7);opacity:0;
  animation:flow 2.4s linear infinite;animation-play-state:paused}
.dot.d2{animation-delay:-1.2s}
.dot.back{top:calc(50% + 6px);width:6px;height:6px;margin:-3px 0 0 -3px;background:#ffd7a8;box-shadow:0 0 9px 3px rgba(255,200,140,.65);animation-name:flow-back;animation-duration:4.8s;animation-delay:-2s}
.carplay.live .dot{animation-play-state:running}
@keyframes flow{0%{transform:translateX(0);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateX(100cqw);opacity:0}}
@keyframes flow-back{0%{transform:translateX(100cqw);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateX(0);opacity:0}}
.sources{margin-top:40px;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px}
.src{padding:22px;border-radius:20px;background:rgba(255,255,255,.06)}
.src h3{font-size:17px;margin-bottom:6px}.src p{font-size:14.5px;color:#c5d2ef}
.src .flag{margin-top:10px}
.sources-note{margin-top:18px;font-size:14.5px;color:#c5d2ef}
.src code{font:13px var(--mono);color:#fff}

/* ── 轉一圈：拖著轉，canvas 畫預載好的 36 格 ── */
.spin{text-align:center}
.spin .lede{margin:16px auto 0}
.spin-stage{position:relative;width:min(100%,560px);margin:36px auto 0;border-radius:var(--r);cursor:grab;touch-action:pan-y;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}
.spin-stage.grab{cursor:grabbing}
.spin-stage.apart{cursor:default}
.spin-stage img,.spin-stage canvas{display:block;width:100%;height:auto;-webkit-user-drag:none;transition:opacity .35s ease,transform .55s var(--spring)}
.spin-canvas,.spin-apart{position:absolute;inset:0;height:100% !important}
.spin-apart{object-fit:contain;opacity:0;transform:scale(1.05);pointer-events:none}
.spin-canvas{opacity:0}
.spin-stage.live .spin-canvas{opacity:1} .spin-stage.live .spin-still{opacity:0}
.spin-stage.apart .spin-still,.spin-stage.apart .spin-canvas{opacity:0;transform:scale(.94)}
.spin-stage.apart .spin-apart{opacity:1;transform:none}
.spin-hint{margin-top:14px;color:var(--muted);font-size:15px;transition:opacity .5s}
.spin-hint.gone{opacity:0}
.spin-actions{margin-top:14px}
.gestures{margin:48px auto 0;max-width:860px;display:grid;grid-template-columns:1fr 1fr;gap:10px 40px;text-align:left}
.g{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line);font-size:15.5px}
.g span:last-child{color:var(--muted);text-align:right}

/* ── 外觀：色票換機身 ── */
.finish .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.finish .pet{max-width:520px;margin:0;aspect-ratio:1200/1300}
.finish .lede{margin-top:14px}
.swatches{display:flex;gap:12px;margin:30px 0 14px}
.sw{all:unset;box-sizing:border-box;cursor:pointer;width:34px;height:34px;border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12);transition:transform .25s var(--spring)}
.sw[aria-pressed=true]{outline:2px solid var(--accent);outline-offset:3px}
.sw:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.sw:hover{transform:scale(1.08)}
.sw-g4{background:#f4f5f3}.sw-silver{background:#c9ccd0}.sw-starlight{background:#e6dccb}.sw-rose{background:#e8c9c2}.sw-gray{background:#5d6066}
.swname{font-weight:600}.swdesc{color:var(--muted);font-size:15px;margin-top:4px;min-height:3.2em}

/* ── 開機／夜裡／睡著：三格 ── */
.moments .grid{margin-top:40px;display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:14px;text-align:left}
.cell{border-radius:var(--r);padding:28px 28px 0;overflow:hidden;display:flex;flex-direction:column}
.cell h3{font-size:20px}.cell p{color:var(--muted);font-size:15px;margin-top:6px}
.shot{position:relative;margin:22px auto -12%;width:86%}
.shot img{width:100%;height:auto}
.hello-canvas{position:absolute;inset:0;width:100%;height:100%}
.cell.playing .shot img{opacity:0}
.textbtn{all:unset;box-sizing:border-box;align-self:flex-start;margin-top:10px;cursor:pointer;font-size:14px;font-weight:600;color:#2a4f9a;padding:4px 12px;border-radius:var(--pill);box-shadow:inset 0 0 0 1px rgba(26,29,34,.2)}
.textbtn:hover{background:rgba(255,255,255,.4)} .textbtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px} .textbtn:disabled{opacity:.5;cursor:default}
.textbtn[hidden]{display:none}
.c1{background:linear-gradient(170deg,#f3d9c4,#c9d5ec)} .c1 p{color:#4f5560} .c1 h3{color:#1a1d22}
.c2{background:#262a36;color:#e9ecf2} .c2 p{color:#a4abb8}
.c3{background:#151821;color:#e9ecf2} .c3 p{color:#9198a6}

/* ── 跑起來 ── */
.run .wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px}
.run .lede{margin-top:16px}
.run ul{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.run li{padding-left:22px;position:relative;color:var(--muted)}
.run li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.code{position:relative;min-width:0}
.copy{all:unset;box-sizing:border-box;position:absolute;top:14px;right:14px;cursor:pointer;padding:5px 14px;border-radius:var(--pill);font:600 13px var(--font);color:#e7ebf1;background:rgba(255,255,255,.1);transition:background .2s}
.copy:hover{background:rgba(255,255,255,.18)} .copy.done{background:var(--accent);color:var(--accent-ink)} .copy:focus-visible{outline:2px solid var(--accent);outline-offset:2px} .copy[hidden]{display:none}
pre{margin:0;padding:26px 28px;border-radius:var(--r);background:var(--code);color:#e7ebf1;font:14px/1.75 var(--mono);overflow:auto}
pre code{font:inherit}
pre .c{color:#7f8a99}

/* ── 說清楚 ── */
.faq{max-width:820px}
.faq-list{margin-top:28px}
details{border-bottom:1px solid var(--line);padding:20px 0}
summary{cursor:pointer;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--muted);transition:transform .25s var(--spring)}
details[open] summary::after{transform:rotate(45deg)}
details p{color:var(--muted);margin-top:10px}

footer{padding:48px 0 64px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--line);padding-top:28px}
footer .links{display:flex;gap:8px 20px;flex-wrap:wrap}

/* ── 404 ── */
.nf-main{max-width:520px;margin:0 auto;padding:18vh 24px 64px;display:grid;gap:16px;justify-items:start}
.nf-main img{border-radius:16px}
.nf-main h1{font-size:clamp(32px,6vw,48px)}
.nf-main p{color:var(--muted)}
.nf-main .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}

/* 進場：首屏用純 CSS（不等腳本），其餘每段標題浮一下；捲動不劫持。只動 transform 與 opacity。 */
@keyframes rise{from{opacity:0;transform:translateY(16px)}}
@keyframes spring{0%{opacity:0;transform:translateY(56px) scale(.96)}55%{opacity:1;transform:translateY(-8px) scale(1.005)}78%{transform:translateY(2px)}100%{transform:none}}
@keyframes bob{from{transform:translateY(-4px)}to{transform:translateY(4px)}}
@media (prefers-reduced-motion:no-preference){
  .hero-copy{animation:rise .8s var(--spring) backwards}
  .hero-pet{animation:spring 1.1s cubic-bezier(.25,.8,.3,1) .1s backwards}
  .hero-bob{animation:bob 3s ease-in-out 1.3s infinite alternate both}
  .hero.off .hero-bob{animation-play-state:paused}
}
@media (prefers-reduced-motion:no-preference) and (scripting:enabled){
  .rise{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .8s var(--spring)}
  .rise.in{opacity:1;transform:none}
  .beats li{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .7s var(--spring)}
  .beats.in li{opacity:1;transform:none}
  .beats.in li:nth-child(2){transition-delay:.12s} .beats.in li:nth-child(3){transition-delay:.24s}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .pet,.pet img,.btn,.sw,.row,summary::after,.spin-stage img,.spin-stage canvas,.spin-hint,.copy{transition:none}
  .dot{display:none}
}

/* 手機：全部單欄，16px 邊 */
@media (max-width:820px){
  .wrap{padding:0 16px} section{padding:72px 0}
  nav{display:none}
  header .wrap{gap:10px}
  .langs{gap:10px}.langs a{font-size:13px}
  header .btn{height:32px;padding:0 12px;font-size:13px}
  .hero .wrap,.faces .wrap,.finish .wrap,.run .wrap,.why-grid{grid-template-columns:1fr}
  .why-grid{gap:40px}.why-eyes{position:static}
  .beats li{grid-template-columns:1fr;gap:10px}
  .hero{min-height:auto}.pet{margin:0 auto}
  .faces .stick{position:relative;top:0}
  .carplay .panel{padding:32px 22px}
  .path{grid-template-columns:1fr;justify-items:start;gap:6px}
  .link{width:22px;height:52px;margin-left:24px}
  .link::before{left:50%;right:auto;top:0;bottom:6px;width:1px;height:auto;background:linear-gradient(180deg,rgba(143,176,255,.15),rgba(143,176,255,.45))}
  .link::after{left:50%;right:auto;top:auto;bottom:1px;margin:0 0 0 -4px;transform:rotate(135deg)}
  .dot{left:50%;top:0;margin:-4px 0 0 -4px;animation-name:flow-v}
  .dot.back{left:calc(50% + 7px);top:0;margin:-3px 0 0 -3px;animation-name:flow-v-back}
  .sources,.moments .grid,.gestures{grid-template-columns:1fr}
  .beats .yr{font-size:44px}
  .finish .pet{order:-1;margin:0 auto}
  .row{grid-template-columns:1fr}.row .r{text-align:left}
}
@keyframes flow-v{0%{transform:translateY(0);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateY(100cqh);opacity:0}}
@keyframes flow-v-back{0%{transform:translateY(100cqh);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateY(0);opacity:0}}

.share-fallback{display:none}