/* www home, version 2 (Eddie 2026-10-01): the same dark studio as learn.fixesarmy.com/order/,
 * one luminous CTA (開始落單 → /order/) with a see-through outline Learn button beside it, Fixes
 * Baby in the bottom-right corner. Phones first: the hero fills the screen, every section is one
 * idea with one thing to touch. Flat drawing, no bevels. */

:root {
  --bg: #060a13;
  --bg-2: #0a1222;
  --ink: #eef3fb;
  --ink-2: #c3cfdf;
  --ink-3: #8795aa;
  --line: rgba(170, 195, 230, 0.18);
  --glass: rgba(14, 22, 38, 0.72);
  --cyan: #5fe6ff;
  --lime: #c8ff5a;
  --amber: #ffb84d;
  --pink: #ff7ad9;
  --jp-a: #4f8bff;
  --jp-b: #9b5cff;
  --cta: linear-gradient(100deg, #6ff7ff 0%, #b8ff5c 55%, #e9ff7a 100%);
  --cta-glow: 0 0 0 1px rgba(214, 255, 150, 0.6), 0 10px 40px -6px rgba(140, 255, 200, 0.6), 0 0 80px -12px rgba(110, 240, 255, 0.5);
  --sans: "Noto Sans TC", "PingFang HK", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --hand: "LXGW WenKai TC", "Noto Sans TC", cursive;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --top-h: 60px;
  --pad: 20px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { background: var(--bg); -webkit-text-size-adjust: 100%; }
/* The hero points at Fixes Baby itself; the widget's pop-up greeting would cover the buttons. */
.fxc-teaser { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; -webkit-tap-highlight-color: transparent; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
p, li, summary { text-wrap: pretty; }
.nw { white-space: nowrap; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; border-radius: 10px; background: #fff; color: #000; }
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }

/* ---------------------------------------------------------------- */
/* Buttons                                                            */
/* ---------------------------------------------------------------- */

.cta { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 60px; padding: 16px 34px; border-radius: 99px; overflow: hidden;
  background: var(--cta); box-shadow: var(--cta-glow); color: #051a0b; font-size: 19px; font-weight: 900; letter-spacing: 0.06em; text-decoration: none; transition: transform 0.25s var(--ease); }
.cta span { position: relative; z-index: 1; }
.cta::before { content: ""; position: absolute; inset: -2px; background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.85) 45%, transparent 60%); transform: translateX(-120%); animation: sheen 3.4s ease-in-out infinite; }
.cta:hover { transform: translateY(-2px) scale(1.02); }
.cta:active { transform: scale(0.97); }
@keyframes sheen { 0%, 55% { transform: translateX(-120%); } 85%, 100% { transform: translateX(120%); } }

.ghost-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 12px 24px; border-radius: 99px; border: 1.5px solid rgba(200, 230, 255, 0.42);
  background: rgba(255, 255, 255, 0.04); color: var(--ink); font-size: 17px; font-weight: 700; letter-spacing: 0.04em; text-decoration: none; transition: background 0.2s, border-color 0.2s; }
.ghost-btn:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(200, 255, 140, 0.7); }
.ghost-btn.sm { min-height: 44px; padding: 8px 18px; font-size: 16px; }
.acts { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* ---------------------------------------------------------------- */
/* Top bar + menu                                                     */
/* ---------------------------------------------------------------- */

.top { position: fixed; z-index: 50; left: 0; right: 0; top: 0; height: calc(var(--top-h) + var(--safe-t)); padding: var(--safe-t) var(--pad) 0; display: flex; align-items: center; gap: 8px;
  transition: background 0.3s, box-shadow 0.3s; }
.top.solid { background: rgba(6, 10, 19, 0.86); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
.logo { flex: none; }
.logo img { width: 112px; height: auto; }
@media (max-width: 420px) { .logo img { width: 92px; } .top-order, .top-learn { font-size: 13.5px; padding: 7px 11px; } }
@media (max-width: 380px) { .top { gap: 6px; } .logo img { width: 84px; } .top-order, .top-learn { font-size: 13px; padding: 7px 9px; } }
/* Below 375px logo + both buttons + menu do not fit; the menu carries 家電原理課. */
@media (max-width: 374px) { .top-learn { display: none; } }
.top-links { display: none; }
.top-order { margin-left: auto; padding: 8px 14px; white-space: nowrap; border-radius: 99px; background: var(--cta); color: #051a0b; font-size: 15px; font-weight: 900; text-decoration: none; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0s 0.3s; }
.top.solid .top-order { opacity: 1; visibility: visible; transition: opacity 0.3s; }
/* The Learn course sits beside every order button: lighter, see-through outline (Eddie 2026-10-01). */
.top-learn { padding: 7px 12px; border-radius: 99px; border: 1.5px solid rgba(200, 230, 255, 0.42); color: var(--ink); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0s 0.3s; }
.top.solid .top-learn { opacity: 1; visibility: visible; transition: opacity 0.3s; }
.menu-btn { flex: none; width: 44px; height: 44px; margin-left: auto; border: 1px solid var(--line); border-radius: 99px; background: rgba(255, 255, 255, 0.04); display: grid; place-content: center; gap: 6px; }
.top.solid .menu-btn { margin-left: 0; }
.menu-btn span:not(.sr) { width: 18px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform 0.25s var(--ease); }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
.menu { position: fixed; z-index: 49; inset: 0; padding: calc(var(--top-h) + var(--safe-t) + 8px) var(--pad) calc(var(--safe-b) + 96px); overflow-y: auto; background: rgba(6, 10, 19, 0.97); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.menu[hidden] { display: none; }
.menu-in { max-width: 520px; margin: 0 auto; display: flex; flex-direction: column; }
.menu-h { margin: 22px 0 6px; font: 700 13px/1 var(--mono); letter-spacing: 0.12em; color: var(--ink-3); }
.menu a { padding: 12px 2px; border-bottom: 1px solid var(--line); font-size: 18px; font-weight: 700; text-decoration: none; }
.menu .menu-main { margin-top: 10px; padding: 14px 20px; border: 0; border-radius: 99px; text-align: center; background: var(--cta); color: #051a0b; font-size: 20px; font-weight: 900; }
.menu .menu-main.ghost { background: transparent; color: var(--ink); border: 1.5px solid rgba(200, 230, 255, 0.42); }
.menu-main small { display: block; font-size: 14px; font-weight: 500; opacity: 0.75; }
body.menu-open { overflow: hidden; --fxc-visibility: hidden; }
body.menu-open .top-order, body.menu-open .top-learn { opacity: 0 !important; visibility: hidden !important; }

/* ---------------------------------------------------------------- */
/* Hero: the whole first screen on a phone                            */
/* ---------------------------------------------------------------- */

.hero { position: relative; min-height: 100svh; padding: calc(var(--top-h) + var(--safe-t)) var(--pad) calc(var(--safe-b) + 92px); display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; -webkit-mask-image: linear-gradient(#000 72%, transparent); mask-image: linear-gradient(#000 72%, transparent); background: radial-gradient(120% 70% at 50% 18%, #0e1d38 0%, #070c17 55%, #04070d 100%); }
.hero-bg i { position: absolute; border-radius: 50%; filter: blur(70px); }
.hero-bg .g1 { width: 70vmax; height: 70vmax; left: -30vmax; top: -30vmax; background: radial-gradient(circle, rgba(95, 230, 255, 0.35), transparent 62%); animation: drift 14s ease-in-out infinite alternate; }
.hero-bg .g2 { width: 70vmax; height: 70vmax; right: -34vmax; bottom: -40vmax; background: radial-gradient(circle, rgba(200, 255, 90, 0.22), transparent 62%); animation: drift 17s ease-in-out infinite alternate-reverse; }
.hero-bg .grid { inset: 0; border-radius: 0; filter: none; background-image: linear-gradient(rgba(140, 190, 255, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(140, 190, 255, 0.07) 1px, transparent 1px); background-size: 40px 40px;
  mask-image: radial-gradient(70% 55% at 50% 30%, #000 20%, transparent 80%); -webkit-mask-image: radial-gradient(70% 55% at 50% 30%, #000 20%, transparent 80%); }
@keyframes drift { to { transform: translate(6vmax, 4vmax) scale(1.08); } }

/* Fixes Baby and the conversation. Phones: Fixes Baby on the left, the chat beside it, newest at the
   bottom (it fits any screen height). Bigger screens: Fixes Baby in the middle of three slow rings,
   two messages above, two below, none over the face. */
.orb { position: relative; flex: 1; min-height: 128px; max-height: 38svh; display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.orb-core { position: relative; flex: none; width: 104px; height: 104px; display: grid; place-items: center; }
.orb-ring { position: absolute; left: 50%; top: 50%; width: 150px; height: 150px; margin: -75px 0 0 -75px; border-radius: 50%; border: 1.5px solid rgba(125, 235, 255, 0.28); }
.orb-ring.r1 { animation: ring 6s ease-out infinite; }
.orb-ring.r2 { animation: ring 6s 2s ease-out infinite; }
.orb-ring.r3 { animation: ring 6s 4s ease-out infinite; }
@keyframes ring { 0% { transform: scale(0.45); opacity: 0; } 20% { opacity: 1; } 100% { transform: scale(1.25); opacity: 0; } }
.orb-baby { position: relative; width: 96px; height: auto; border-radius: 50%; box-shadow: 0 0 0 3px rgba(200, 255, 90, 0.8), 0 0 50px rgba(110, 240, 255, 0.5); animation: breathe 4.2s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.04); } }
.orb-bubbles { position: relative; flex: 1; min-width: 0; align-self: stretch; display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; overflow: hidden; padding: 4px 0;
  -webkit-mask-image: linear-gradient(transparent, #000 30%); mask-image: linear-gradient(transparent, #000 30%); }
.ob { flex: none; max-width: 100%; padding: 7px 12px; border-radius: 16px; font-size: 14.5px; font-weight: 700; line-height: 1.35; }
.ob:not(.on) { display: none; }
.ob.on { animation: ob-in 0.45s var(--ease) both; }
@keyframes ob-in { from { opacity: 0; transform: translateY(10px) scale(0.94); } }
.ob.me { align-self: flex-end; background: #d9fdd3; color: #0b2a12; border-bottom-right-radius: 4px; }
.ob.ai { align-self: flex-start; background: var(--glass); border: 1px solid var(--line); color: var(--ink); border-bottom-left-radius: 4px; }
.ob.ok { background: linear-gradient(135deg, rgba(111, 247, 255, 0.24), rgba(184, 255, 92, 0.24)); border-color: rgba(200, 255, 90, 0.7); }
@media (min-width: 600px) and (min-height: 820px), (min-width: 900px) {
  .orb { display: grid; place-items: center; width: 100%; max-width: 560px; margin: 0 auto 8px; min-height: 300px; max-height: 46svh; }
  .orb-core { width: auto; height: auto; }
  .orb-ring { width: 300px; height: 300px; margin: -150px 0 0 -150px; }
  .orb-baby { width: 150px; }
  .orb-bubbles { position: absolute; inset: 0; display: block; padding: 0; overflow: visible; -webkit-mask-image: none; mask-image: none; }
  .ob { position: absolute; max-width: 58%; font-size: 15.5px; opacity: 0; transform: translateY(10px) scale(0.92); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
  .ob:not(.on) { display: block; }
  .ob.on { opacity: 1; transform: none; animation: none; }
  .ob:nth-child(1) { left: 0; top: 0; }
  .ob:nth-child(2) { right: 0; top: 13%; }
  .ob:nth-child(3) { left: 4%; bottom: 13%; }
  .ob:nth-child(4) { right: 2%; bottom: 0; }
}

.hero-copy { position: relative; }
.live { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 99px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); font-size: 14px; font-weight: 700; color: var(--ink-2); }
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 0 rgba(200, 255, 90, 0.7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(200, 255, 90, 0); } 100% { box-shadow: 0 0 0 0 rgba(200, 255, 90, 0); } }
.hero h1 { margin-top: 14px; font-size: clamp(32px, 8.6vw, 72px); line-height: 1.18; font-weight: 900; letter-spacing: 0.01em; }
.hero h1 .l { display: block; white-space: nowrap; }
.hl { background: var(--cta); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 12px; font-size: 17.5px; color: var(--ink-2); max-width: 30em; }
.hero .acts { margin-top: 22px; }
.hero .cta { flex: 1 1 100%; max-width: 420px; min-height: 60px; font-size: 20px; }
.hero .ghost-btn { flex: 1 1 100%; max-width: 420px; min-height: 56px; }
/* Short phones (most phones with the browser bars showing): the hero still fits one screen, the
   buttons stay clear of Fixes Baby's corner launcher. */
@media (max-width: 899px) and (max-height: 760px) {
  .hero .live { display: none; }
  .hero h1 { margin-top: 0; font-size: clamp(28px, 7.8vw, 36px); }
  .lead { margin-top: 8px; font-size: 16px; }
  .hero .acts { margin-top: 16px; gap: 10px; }
  .hero .cta { min-height: 54px; }
  .hero .ghost-btn { min-height: 48px; }
  .hk-only { margin-top: 8px; }
}
/* Tablets: the phone layout, centred instead of stretched. */
@media (min-width: 600px) and (max-width: 899px) {
  .hero-copy { width: 100%; max-width: 640px; margin: 0 auto; text-align: center; }
  .hero h1 { font-size: clamp(32px, 6.6vw, 56px); }
  .hero .lead { margin-left: auto; margin-right: auto; }
  .hero .acts { justify-content: center; }
  .orb { max-width: 460px; }
  .ch, .story-hd, .promise, .faq, .other { padding-left: max(var(--pad), calc(50% - 320px)); padding-right: max(var(--pad), calc(50% - 320px)); }
  .tl { max-width: 720px; margin-left: auto; margin-right: auto; }
}
.hk-only { margin-top: 12px; font-size: 14px; color: var(--ink-3); }

/* The hand-drawn arrow from the hero to Fixes Baby in the corner. */
.to-baby { position: absolute; right: 80px; bottom: calc(var(--safe-b) + 36px); display: flex; align-items: flex-end; gap: 2px; font: 700 17px/1.2 var(--hand); color: var(--lime); text-align: right; opacity: 0; transition: opacity 0.6s; pointer-events: none; }
.to-baby.on { opacity: 1; }
.top.solid ~ main .to-baby { opacity: 0; }
.to-baby svg { width: 62px; height: 42px; fill: none; stroke: var(--lime); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 200; stroke-dashoffset: 200; }
.to-baby.on svg { animation: draw 1.2s 0.3s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------------------------------------------------------------- */
/* Chapters                                                            */
/* ---------------------------------------------------------------- */

.ch { position: relative; padding: 72px var(--pad); display: grid; gap: 32px; }
.ch > * { min-width: 0; }
.ch-alt { background: linear-gradient(180deg, var(--bg), var(--bg-2) 30%, var(--bg-2) 70%, var(--bg)); }
.ch-n { font: 700 14px/1 var(--mono); letter-spacing: 0.16em; color: var(--cyan); }
.ch h2, .story h2, .other h2, .end h2 { margin-top: 12px; font-size: clamp(30px, 8vw, 52px); line-height: 1.2; font-weight: 900; }
.ch-p { margin-top: 14px; font-size: 17.5px; color: var(--ink-2); max-width: 30em; }
.ch-copy > .ghost-btn, .ch-copy > .acts { margin-top: 22px; }
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }

/* A phone, drawn flat. */
.phone { width: min(100%, 360px); justify-self: center; border-radius: 30px; padding: 10px; background: #0d1526; box-shadow: 0 0 0 1px rgba(125, 235, 255, 0.3), 0 30px 80px -30px rgba(40, 140, 255, 0.6); }
.phone-head { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 22px 22px 0 0; background: linear-gradient(90deg, #0b1426, #12305a); }
.phone-head img { width: 32px; height: 32px; border-radius: 50%; }
.phone-head b { font-size: 16px; }
.phone-head small { margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-2); }
.phone-head small i { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); animation: pulse 2s infinite; }
.chat { height: 320px; padding: 14px 12px; border-radius: 0 0 22px 22px; background: #eef3f8; display: flex; flex-direction: column; justify-content: flex-end; gap: 8px; overflow: hidden; }
.msg { max-width: 82%; padding: 9px 13px; border-radius: 16px; font-size: 15.5px; line-height: 1.45; color: #0b1426; animation: msg-in 0.4s var(--ease) both; }
.msg.me { align-self: flex-end; background: #d9fdd3; border-bottom-right-radius: 4px; }
.msg.ai { align-self: flex-start; background: #fff; border-bottom-left-radius: 4px; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); }
.msg.pic { padding: 6px; }
.msg.pic span { display: block; width: 150px; height: 84px; border-radius: 10px; background: linear-gradient(135deg, #cfd8e3, #eef2f6); position: relative; }
.msg.pic span::after { content: "型號 WW80T"; position: absolute; left: 12px; top: 28px; padding: 3px 8px; border-radius: 4px; background: #fff; font: 700 12px/1.3 var(--mono); color: #334; }
.msg.dots { display: flex; gap: 4px; padding: 13px 14px; }
.msg.dots i { width: 7px; height: 7px; border-radius: 50%; background: #9aa7b8; animation: dot 1s infinite; }
.msg.dots i:nth-child(2) { animation-delay: 0.15s; }
.msg.dots i:nth-child(3) { animation-delay: 0.3s; }
.msg.quote { background: linear-gradient(135deg, #f1fbff, #efffe6); border: 1px solid #b7e7ff; font-weight: 700; }
@keyframes msg-in { from { opacity: 0; transform: translateY(10px); } }
@keyframes dot { 50% { transform: translateY(-4px); opacity: 0.5; } }

/* 體驗版 chips: the shared widget unhides the group once it can take them. */
.trial { margin-top: 24px; padding: 16px; border-radius: 20px; border: 1px solid var(--line); background: var(--glass); }
.trial[hidden] { display: none; }
.trial-h { font-size: 15px; color: var(--ink-2); }
.trial-h b { display: inline-block; margin-right: 8px; padding: 1px 9px; border-radius: 99px; background: linear-gradient(90deg, #2f62d8, #6f35e0); color: #fff; font-size: 13px; }
.chips { margin: 12px 0 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { min-height: 42px; padding: 8px 14px; border-radius: 99px; border: 1px solid rgba(125, 235, 255, 0.4); background: rgba(95, 230, 255, 0.08); font-size: 15.5px; font-weight: 700; }
.chips button:hover { background: rgba(95, 230, 255, 0.18); }

/* One link: the journey from 報價 to 收據 is one stream that changes colour as it flows (js/story.js
   journey). Each stop keeps its colour everywhere: on the stream, on the track, in the 6 steps. */
.ch-flow { gap: 24px; }
/* The picture sits in the same dark card as the timeline's pictures. */
.flow-art { position: relative; aspect-ratio: 400 / 410; border-radius: 22px; overflow: hidden;
  background: radial-gradient(100% 80% at 50% 45%, #0f1e3a 0%, #070c17 70%); box-shadow: 0 0 0 1px rgba(125, 235, 255, 0.16); }
.flow-art canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: pan-y pinch-zoom; }
.track { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); position: relative; }
.track li:nth-child(1) { --c: #ff8a72; --g: 255, 138, 114; }
.track li:nth-child(2) { --c: #ffc862; --g: 255, 200, 98; }
.track li:nth-child(3) { --c: #5fd9a0; --g: 95, 217, 160; }
.track li:nth-child(4) { --c: #7393ff; --g: 115, 147, 255; }
.track::before, .track::after { content: ""; position: absolute; left: 12.5%; right: 12.5%; top: 13px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, #ff8a72, #ffa566 17%, #ffc862 33%, #b8dd78 50%, #5fd9a0 67%, #62c2e6 83%, #7393ff); }
.track::before { opacity: 0.22; }
.track::after { clip-path: inset(0 calc(100% - 100% * var(--p, 0) / 3) 0 0); transition: clip-path 1.2s var(--ease); }
.track button { width: 100%; min-height: 64px; border: 0; background: none; padding: 0; display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: 15.5px; font-weight: 700; color: var(--ink-3); position: relative; z-index: 1; }
.track i { width: 28px; height: 28px; border-radius: 50%; background: var(--bg-2); border: 1.5px solid rgba(var(--g), 0.5); transition: background 0.4s, border-color 0.4s, box-shadow 0.4s, transform 0.4s var(--ease); }
.track button.on, .track button.done { color: var(--ink); }
.track button.done i { background: linear-gradient(rgba(var(--g), 0.2), rgba(var(--g), 0.2)), var(--bg-2); border-color: rgba(var(--g), 0.8); }
.track button.on { color: var(--c); }
.track button.on i { background: linear-gradient(rgba(var(--g), 0.3), rgba(var(--g), 0.3)), var(--bg-2); border-color: var(--c); box-shadow: 0 0 0 4px rgba(var(--g), 0.12), 0 0 14px rgba(var(--g), 0.35); }
@media (min-width: 600px) { .flow-art { aspect-ratio: 800 / 410; } }
@media (min-width: 1100px) { .flow-art { aspect-ratio: 1600 / 410; cursor: pointer; } }

/* 6 steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; counter-reset: s; }
.steps li { position: relative; display: flex; align-items: center; gap: 12px; min-height: 64px; padding: 12px 14px; border-radius: 18px; border: 1px solid rgba(var(--g), 0.22); background: linear-gradient(135deg, rgba(var(--g), 0.07), var(--glass) 60%); transition: border-color 0.4s, background 0.4s, transform 0.4s var(--ease); }
.steps i { flex: none; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font: 700 15px/1 var(--mono); font-style: normal; border: 1.5px solid rgba(var(--g), 0.6); background: rgba(var(--g), 0.12); color: var(--c); transition: background 0.4s, border-color 0.4s, box-shadow 0.4s; }
.steps b { font-size: 16px; line-height: 1.3; }
.steps li.on { border-color: rgba(var(--g), 0.75); background: linear-gradient(135deg, rgba(var(--g), 0.2), rgba(var(--g), 0.06)); transform: translateY(-2px); }
.steps li.on i { background: rgba(var(--g), 0.28); border-color: var(--c); color: var(--ink); box-shadow: 0 0 14px rgba(var(--g), 0.35); }
/* The six steps run through the same colours as the stream: red, orange, yellow, green, blue, purple. */
.steps li:nth-child(1) { --c: #ff8a72; --g: 255, 138, 114; }
.steps li:nth-child(2) { --c: #ffa566; --g: 255, 165, 102; }
.steps li:nth-child(3) { --c: #ffc862; --g: 255, 200, 98; }
.steps li:nth-child(4) { --c: #5fd9a0; --g: 95, 217, 160; }
.steps li:nth-child(5) { --c: #7393ff; --g: 115, 147, 255; }
.steps li:nth-child(6) { --c: #a585ff; --g: 165, 133, 255; }
@media (max-width: 599px) { .steps li { flex-direction: column; align-items: flex-start; gap: 8px; } }

/* 3D */
.stage3d { position: relative; height: min(70svh, 520px); min-height: 360px; border-radius: 26px; overflow: hidden; background: radial-gradient(90% 70% at 50% 40%, #13254a, #070c17 75%); box-shadow: 0 0 0 1px rgba(125, 235, 255, 0.28); touch-action: pan-y; }
.stage3d canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: pan-y; }
@media (max-width: 599px) { .stage3d { height: min(60svh, 460px); min-height: 340px; } }
/* Phones: a few numbered labels per system, not a pile of them. */
.stage3d .fx-callout.quiet { display: none; }
.stage3d .callouts { position: absolute; inset: 0; pointer-events: none; }
.gx { position: absolute; left: 0; right: 0; bottom: 12px; text-align: center; font-size: 13px; color: var(--ink-3); pointer-events: none; transition: opacity 0.6s; }
.gx.off { opacity: 0; }
.load3d { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; font-size: 15px; color: var(--ink-2); transition: opacity 0.6s; }
.load3d.done { opacity: 0; pointer-events: none; }
.load3d.done * { animation: none; }
.load3d .go { min-height: 48px; padding: 10px 22px; border-radius: 99px; border: 1.5px solid rgba(200, 255, 140, 0.6); background: rgba(184, 255, 92, 0.12); font-size: 16px; font-weight: 800; }
.load3d .bar { width: 160px; height: 3px; border-radius: 3px; background: var(--line); overflow: hidden; }
.load3d .bar b { display: block; height: 100%; width: 40%; background: var(--cta); animation: loadbar 1.4s ease-in-out infinite; }
@keyframes loadbar { from { transform: translateX(-100%); } to { transform: translateX(250%); } }
.spin { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--lime); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.ch-3d { gap: 20px; }
.ctl-h { margin-top: 16px; font-size: 14px; color: var(--ink-3); }
.ctl3d > .ghost-btn { margin-top: 20px; }
.kinds { display: inline-flex; padding: 4px; border-radius: 99px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); }
.kinds button { min-height: 44px; padding: 8px 22px; border: 0; border-radius: 99px; background: none; font-size: 16px; font-weight: 700; color: var(--ink-2); }
.kinds button[aria-pressed="true"] { background: rgba(125, 235, 255, 0.18); color: var(--ink); box-shadow: inset 0 0 0 1px rgba(125, 235, 255, 0.5); }
.systems { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 8px; min-height: 44px; }
.systems button { min-height: 40px; padding: 6px 14px; border-radius: 99px; border: 1px solid var(--line); background: none; font-size: 15px; font-weight: 700; color: var(--ink-2); }
.systems button[aria-pressed="true"] { border-color: rgba(200, 255, 90, 0.75); color: var(--ink); background: linear-gradient(135deg, rgba(111, 247, 255, 0.18), rgba(184, 255, 92, 0.14)); }

/* ---------------------------------------------------------------- */
/* Story, promise, other ways, end, footer                            */
/* ---------------------------------------------------------------- */

/* The timeline: the rail hugs the left edge, every event's picture runs (almost) the full width.
   A dot is a ring the rail passes behind: the line stops at its edge above and below. */
.story { padding: 72px 0 40px; }
.story-hd { padding: 0 var(--pad); }
.tl { position: relative; margin-top: 36px; padding: 0 12px 0 34px; }
.tl-rail { position: absolute; left: 15px; top: 8px; bottom: 0; width: 2px; background: rgba(170, 195, 230, 0.16); }
.tl-rail i { position: absolute; left: 0; top: 0; width: 100%; height: var(--tl, 0%); background: linear-gradient(180deg, var(--cyan), var(--lime) 60%, var(--jp-b)); box-shadow: 0 0 12px rgba(150, 255, 200, 0.6); }
.ev { position: relative; padding-bottom: 64px; }
.ev:last-child { padding-bottom: 0; }
.ev::before { content: ""; position: absolute; z-index: 1; left: -27px; top: 2px; width: 18px; height: 18px; border-radius: 50%; box-sizing: border-box;
  background: var(--bg); border: 2.5px solid rgba(170, 195, 230, 0.45); transition: border-color 0.5s, box-shadow 0.5s; }
.ev.lit::before { border-color: var(--lime); box-shadow: 0 0 0 4px var(--bg), 0 0 18px rgba(200, 255, 90, 0.7); }
.ev.jp.lit::before { border-color: var(--jp-b); box-shadow: 0 0 0 4px var(--bg), 0 0 18px rgba(155, 92, 255, 0.8); }
.ev-when { font: 800 15px/22px var(--sans); letter-spacing: 0.04em; color: var(--cyan); }
.ev.jp .ev-when { color: #a99cff; }
.ev-txt { padding-right: 8px; }
.ev h3 { margin-top: 8px; font-size: clamp(22px, 6vw, 34px); line-height: 1.3; font-weight: 900; }
.ev-txt p { margin-top: 10px; font-size: 17px; color: var(--ink-2); }
.ev-txt .num { color: var(--lime); }
.ev-txt .ghost-btn { margin-top: 16px; }
.ev-badge { display: inline-block; margin-top: 10px; padding: 3px 12px; border-radius: 99px; font-size: 13.5px; font-weight: 900; color: #fff; background: linear-gradient(90deg, #2f62d8, #6f35e0); }
.ev-badge.hu { color: #051a0b; background: var(--cta); }
.aig { background: linear-gradient(90deg, #7fb0ff, #b98cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ev-art { position: relative; margin-top: 20px; aspect-ratio: 4 / 3; border-radius: 22px; overflow: hidden;
  background: radial-gradient(100% 80% at 50% 45%, #0f1e3a 0%, #070c17 70%); box-shadow: 0 0 0 1px rgba(125, 235, 255, 0.16); }
.ev.jp .ev-art { background: radial-gradient(100% 80% at 50% 45%, #1a1640 0%, #080a18 72%); box-shadow: 0 0 0 1px rgba(155, 92, 255, 0.28); }
.ev-art.tall { aspect-ratio: 1 / 0.9; }
.ev-art canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.promise { padding: 24px var(--pad) 64px; }
.promise ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.promise li { display: grid; grid-template-columns: 48px 1fr; column-gap: 14px; padding: 18px; border-radius: 20px; border: 1px solid var(--line); background: var(--glass); }
.promise svg { grid-row: span 2; width: 44px; height: 44px; fill: none; stroke: var(--cyan); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.promise b { font-size: 18px; }
.promise span { font-size: 15.5px; color: var(--ink-2); }

.faq { padding: 8px var(--pad) 64px; }
.faq h2 { font-size: clamp(26px, 7vw, 40px); line-height: 1.2; font-weight: 900; }
.faq-list { margin-top: 18px; display: grid; gap: 10px; }
.faq details { border-radius: 18px; border: 1px solid var(--line); background: var(--glass); }
.faq summary { list-style: none; position: relative; padding: 16px 48px 16px 18px; font-size: 17px; font-weight: 800; cursor: pointer; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 24px; color: var(--lime); transition: transform 0.3s var(--ease); }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 18px 18px; font-size: 16px; color: var(--ink-2); }
.other { padding: 56px var(--pad); background: var(--bg-2); }
/* Three routes in, each in its own colour (網站 purple, WhatsApp green, 電話 amber). Every route
   starts with an AI and runs to the same end; a faint light runs along each line, one after another. */
.routes { margin-top: 26px; display: grid; gap: 14px; }
.rt { --c: #a585ff; --g: 165, 133, 255; display: flex; flex-direction: column; gap: 14px; padding: 20px 18px 18px; border-radius: 22px;
  border: 1px solid rgba(var(--g), 0.26); background: linear-gradient(160deg, rgba(var(--g), 0.09), var(--glass) 55%); }
.rt-web { border-color: rgba(var(--g), 0.5); box-shadow: 0 24px 60px -36px rgba(var(--g), 0.7); }
.rt-wa { --c: #25d366; --g: 37, 211, 102; }
.rt-tel { --c: #ffb84d; --g: 255, 184, 77; }
.rt-hd { display: flex; align-items: center; gap: 10px; }
.rt-hd svg { flex: none; width: 26px; height: 26px; fill: none; stroke: var(--c); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.rt h3 { font-size: 22px; line-height: 1.2; font-weight: 900; color: var(--c); }
.rt-tag { margin-left: auto; padding: 2px 11px; border-radius: 99px; font-size: 13px; font-weight: 900; color: #140b2c; background: var(--c); }
.rt-lead { font-size: 17px; font-weight: 700; text-wrap: balance; }
.rt p:not(.rt-lead) { font-size: 15.5px; color: var(--ink-2); }
.rt-line { list-style: none; margin: 2px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); position: relative; }
.rt-line::before { content: ""; position: absolute; left: 16.67%; right: 16.67%; top: 15px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.75), transparent) -40% 0 / 28% 100% no-repeat, linear-gradient(90deg, rgba(var(--g), 0.75), rgba(var(--g), 0.35));
  animation: rt-run 6s linear infinite; }
.rt-wa .rt-line::before { animation-delay: 2s; }
.rt-tel .rt-line::before { animation-delay: 4s; }
@keyframes rt-run { 0% { background-position: -40% 0, 0 0; } 45%, 100% { background-position: 140% 0, 0 0; } }
.rt-line li { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.rt-line i { width: 32px; height: 32px; margin-bottom: 7px; border-radius: 50%; display: grid; place-items: center; font: 700 11px/1 var(--mono); font-style: normal; letter-spacing: 0.04em;
  color: var(--c); border: 1.5px solid rgba(var(--g), 0.8); background: linear-gradient(rgba(var(--g), 0.16), rgba(var(--g), 0.16)), var(--bg-2); }
.rt-line .rt-end { grid-column: 3; }
.rt-line .rt-end i { width: 14px; height: 14px; margin: 9px 0 16px; border: 0; background: var(--c); box-shadow: 0 0 0 4px rgba(var(--g), 0.16); }
.rt-line b { font-size: 15px; line-height: 1.3; font-weight: 800; }
.rt-line small { font-size: 12.5px; line-height: 1.35; color: var(--ink-3); }
.rt-go { margin-top: auto; display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 10px 20px; border-radius: 99px;
  border: 1.5px solid rgba(var(--g), 0.7); background: rgba(var(--g), 0.12); font-size: 17px; font-weight: 800; text-decoration: none; transition: background 0.2s; }
.rt-go:hover { background: rgba(var(--g), 0.24); }
.rt-go svg { flex: none; width: 20px; height: 20px; fill: none; stroke: var(--c); stroke-width: 2; stroke-linejoin: round; }
.reviews { display: inline-flex; align-items: center; gap: 10px; margin-top: 22px; font-size: 16px; font-weight: 700; color: var(--ink-2); text-decoration: none; }
.reviews .stars { color: var(--amber); letter-spacing: 2px; }
.doors { margin-top: 28px; display: grid; gap: 10px; }
.doors a { display: flex; flex-direction: column; padding: 16px 44px 16px 18px; border-radius: 18px; border: 1px solid var(--line); text-decoration: none; position: relative; transition: border-color 0.2s; }
.doors a::after { content: "›"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 26px; color: var(--ink-3); }
.doors a:hover { border-color: rgba(125, 235, 255, 0.5); }
.doors b { font-size: 18px; }
.doors span { font-size: 15px; color: var(--ink-3); }

.end { padding: 88px var(--pad) 72px; text-align: center; background: radial-gradient(70% 60% at 50% 60%, rgba(40, 110, 200, 0.3), transparent 70%); }
.end .acts { margin-top: 26px; justify-content: center; }
.end .cta, .end .ghost-btn { flex: 1 1 100%; max-width: 420px; }
.join { display: inline-flex; align-items: center; gap: 14px; margin-top: 34px; padding: 14px 20px 14px 16px; border-radius: 18px; text-align: left; color: var(--ink); text-decoration: none;
  background: linear-gradient(120deg, rgba(110, 240, 255, 0.16), rgba(200, 255, 90, 0.12)); box-shadow: inset 0 0 0 1px rgba(160, 255, 200, 0.4), 0 10px 30px rgba(0, 0, 0, 0.3); }
.join svg { flex: none; width: 34px; height: 34px; padding: 7px; border-radius: 12px; box-sizing: border-box; fill: none; stroke: #071a10; stroke-width: 2; stroke-linejoin: round; background: var(--cta); }
.join b { display: block; font-size: 17px; font-weight: 900; }
.join small { display: block; font-size: 14px; color: var(--lime); }
.join i { font-style: normal; font-size: 22px; color: var(--lime); }

.foot { padding: 40px var(--pad) calc(var(--safe-b) + 110px); border-top: 1px solid var(--line); font-size: 15px; color: var(--ink-3); display: grid; gap: 12px; }
.foot img { width: 110px; height: auto; }
.foot a { text-decoration: none; }
.foot-l { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.foot-l a { color: var(--ink-2); }
.foot-l .foot-order { color: var(--lime); }
.foot-l .foot-order.learn { color: var(--ink); }
.foot-s { font-size: 13px; }

/* ---------------------------------------------------------------- */
/* Desktop                                                             */
/* ---------------------------------------------------------------- */

@media (min-width: 900px) {
  :root { --pad: 48px; --top-h: 72px; }
  .logo img { width: 130px; }
  .top-links { display: flex; gap: 28px; margin-left: 40px; }
  .top-links a { font-size: 15px; font-weight: 700; color: var(--ink-2); text-decoration: none; }
  .top-links a:hover { color: var(--ink); }
  .top-order, .top-learn { opacity: 1; visibility: visible; }
  .top { gap: 12px; padding-left: max(var(--pad), calc(50% - 620px)); padding-right: max(var(--pad), calc(50% - 620px)); }
  .menu-btn { margin-left: 0; }
  .hero { flex-direction: row-reverse; align-items: center; justify-content: space-between; gap: 40px; padding-bottom: 64px; padding-left: max(var(--pad), calc(50% - 632px)); padding-right: max(var(--pad), calc(50% - 632px)); }
  .orb { flex: 0 0 44%; max-width: none; margin: 0; max-height: none; height: 560px; }
  .orb-ring { width: 460px; height: 460px; margin: -230px 0 0 -230px; }
  .orb-baby { width: 200px; }
  .ob { font-size: 17px; }
  .hero-copy { flex: 1; min-width: 0; }
  .hero h1 { font-size: clamp(38px, 4.4vw, 72px); }
  .hero .cta, .hero .ghost-btn { flex: 0 0 auto; min-height: 58px; }
  .to-baby { right: 96px; bottom: 26px; font-size: 20px; }
  .to-baby svg { width: 90px; height: 60px; }
  .ch { grid-template-columns: 1fr 1fr; align-items: center; gap: 64px; max-width: 1240px; margin: 0 auto; padding: 120px var(--pad); }
  .ch-alt { max-width: none; padding-left: max(var(--pad), calc(50vw - 620px)); padding-right: max(var(--pad), calc(50vw - 620px)); }
  .ch-flow { grid-template-columns: 1fr; gap: 28px; }
  .ch-flow .ch-copy { max-width: 760px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .ch-3d { grid-template-columns: 0.8fr 1.2fr; grid-template-areas: "copy stage" "ctl stage"; row-gap: 0; align-items: start; }
  .ch-3d .ch-copy { grid-area: copy; align-self: end; }
  .ch-3d .ctl3d { grid-area: ctl; margin-top: 24px; }
  .ch-3d .stage3d { grid-area: stage; align-self: center; }
  .stage3d { height: 600px; }
  .promise, .other { max-width: 1240px; margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
  .other { max-width: none; padding-left: max(var(--pad), calc(50vw - 572px)); padding-right: max(var(--pad), calc(50vw - 572px)); }
  .story { max-width: 1240px; margin: 0 auto; padding: 120px var(--pad) 40px; }
  .faq { max-width: 1240px; margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
  .faq-list { grid-template-columns: repeat(3, 1fr); align-items: start; }
  .story-hd { padding: 0; }
  .tl { padding: 0 0 0 64px; }
  .tl-rail { left: 23px; }
  .ev { display: grid; grid-template-columns: 0.72fr 1.28fr; grid-template-rows: auto 1fr; column-gap: 48px; padding-bottom: 96px; }
  .ev::before { left: -51px; top: 4px; width: 22px; height: 22px; }
  .ev-when { grid-column: 1; grid-row: 1; font-size: 17px; }
  .ev-txt { grid-column: 1; grid-row: 2; padding-top: 4px; }
  .ev-art { grid-column: 2; grid-row: 1 / 3; margin-top: 0; }
  .promise ul { grid-template-columns: repeat(3, 1fr); }
  .promise li { grid-template-columns: 1fr; row-gap: 8px; }
  .promise svg { grid-row: auto; }
  .routes { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .doors { grid-template-columns: repeat(3, 1fr); }
  .end .cta, .end .ghost-btn { flex: 0 0 auto; min-width: 220px; }
  .foot { grid-template-columns: auto 1fr; max-width: 1240px; margin: 0 auto; padding-bottom: 60px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}
/* Nothing moves while the page is hidden (app switch, lock, other tab), or while its section is off
   screen (home.js marks those .idle). */
body.paused *, body.paused *::before, body.paused *::after, .idle *, .idle *::before, .idle *::after { animation-play-state: paused !important; }
/* Phones: the Google review badge waits until the hero is passed, so it never sits on the buttons. */
@media (max-width: 899px) { body.hero-on .review-wrapper { display: none !important; } }