:root {
  --bg: #fbf7ed;
  --card: #fffdf8;
  --green: #17604c;
  --green-dark: #0e3d29;
  --accent: #e9a67a;
  --text: #2f3a33;
  --text-mid: #6b7268;
  --line: #e6dfcf;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans TC", system-ui, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.en { font-family: "Noto Sans", "Noto Sans TC", system-ui, sans-serif; }
img { max-width: 100%; display: block; }
a { color: var(--green); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* 頁首 */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand .icon { width: 40px; }
.brand .word { height: 24px; width: auto; }
.nav-right { display: flex; align-items: center; gap: 22px; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--text-mid); text-decoration: none; }
.nav-links a:hover { color: var(--green); }
.lang {
  font-size: 13px; text-decoration: none; color: var(--green);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; background: var(--card);
}

/* 主視覺 */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; padding: 32px 0 72px; }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .12em; font-size: 14px; margin: 0 0 12px; }
h1, h2, h3 { font-family: "Noto Serif TC", serif; color: var(--green-dark); line-height: 1.35; margin: 0; }
body.en h1, body.en h2, body.en h3 { font-family: "Playfair Display", "Noto Serif TC", serif; }
h1 { font-size: clamp(32px, 5vw, 50px); }
.hero p.lead { font-size: 18px; color: var(--text-mid); margin: 20px 0 30px; }
.badges { display: flex; gap: 12px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  background: var(--green); color: #fff; font-weight: 700; font-size: 15px; text-decoration: none;
}
.badge.ghost { background: transparent; color: var(--green); border: 1.5px solid var(--green); }
.hero-art { position: relative; display: flex; justify-content: center; }

/* 手機外框（放真實 App 截圖） */
.phone {
  width: 100%; max-width: 280px; aspect-ratio: 390 / 844;
  border-radius: 38px; padding: 9px; background: #1f2a24;
  box-shadow: 0 24px 50px rgba(14, 61, 41, .18), 0 4px 12px rgba(14, 61, 41, .12);
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 30px; }

/* 主視覺：90 天回憶書（recap-book.js 畫書頁、控制翻頁）。舊皮革咖啡色封皮＋書頁厚度＋陰影，書才不會融進米白背景 */
.hero-art { flex-direction: column; align-items: center; }
.recap-book { width: 100%; display: flex; justify-content: center; align-items: center; perspective: 1600px; }
.rb-book { position: relative; transform-style: preserve-3d; }
.rb-board { position: absolute; top: -12px; bottom: -12px; border-radius: 7px; transform: translateZ(-3px);
  background: radial-gradient(130% 110% at 28% 18%, #94653f 0%, #77492b 48%, #4f2f1b 100%);
  box-shadow: inset 0 0 0 3px rgba(233, 205, 160, .22), inset 0 0 22px rgba(35, 18, 6, .5), 0 18px 34px rgba(70, 40, 15, .32); }
.rb-board.rb-r { left: 50%; right: -12px; border-top-left-radius: 2px; border-bottom-left-radius: 2px; }
.rb-board.rb-l { right: 50%; left: -12px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; }
.rb-edge { position: absolute; top: 3px; bottom: -6px; border-radius: 3px; transform: translateZ(-1px);
  background: repeating-linear-gradient(90deg, #e9dfc8 0 1px, #fbf6ea 1px 3px); box-shadow: 0 6px 10px rgba(60, 40, 15, .22); }
.rb-edge.rb-r { left: 50%; right: -6px; }
.rb-edge.rb-l { right: 50%; left: -6px; }
.rb-sheet { position: absolute; left: 50%; top: 0; transform-origin: left center; transform-style: preserve-3d; }
.rb-face { position: absolute; inset: 0; overflow: hidden; backface-visibility: hidden; border-radius: 3px; background: #f7f1e3; box-shadow: 0 0 0 1px rgba(120, 95, 55, .16); }
.rb-face.rb-coverface { inset: -12px -12px -12px 0; border-radius: 2px 7px 7px 2px; box-shadow: none; }
.rb-back { transform: rotateY(180deg); }
.rb-front::after, .rb-back::after { content: ""; position: absolute; top: 0; bottom: 0; width: 14%; pointer-events: none; z-index: 4; }
.rb-front::after { left: 0; background: linear-gradient(90deg, rgba(0, 0, 0, .16), transparent); }
.rb-back::after { right: 0; background: linear-gradient(-90deg, rgba(0, 0, 0, .16), transparent); }
.rb-shade { position: absolute; inset: 0; background: #000; opacity: 0; pointer-events: none; z-index: 5; }
.rb-pg { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; padding: 6% 7%; color: var(--text); line-height: 1.5; }
.rb-cover { justify-content: center; color: #ecd9b4;
  background: radial-gradient(130% 110% at 28% 18%, #94653f 0%, #77492b 48%, #4f2f1b 100%);
  box-shadow: inset 0 0 0 .55em #77492b, inset 0 0 0 .62em rgba(236, 217, 180, .5), inset 0 0 1.6em rgba(35, 18, 6, .45); }
.rb-mast { font-size: .58em; letter-spacing: .32em; opacity: .85; margin-top: .4em; }
.rb-title { font-family: "Noto Serif TC", "Playfair Display", serif; font-weight: 700; font-size: 2em; letter-spacing: .12em; margin-top: .15em; }
.rb-sub { font-size: .78em; letter-spacing: .2em; }
.rb-meta { font-size: .58em; opacity: .75; margin-top: .3em; }
.rb-collage { position: relative; width: 100%; flex: 1; margin-top: .7em; }
.rb-pol { position: absolute; width: 31%; padding: 3% 3% 9%; background: #fffdf8; box-shadow: 0 .2em .5em rgba(0, 0, 0, .35); }
.rb-pol img { width: 100%; aspect-ratio: 6 / 5; object-fit: cover; }
.rb-tree { padding: 3%; justify-content: center; }
.rb-tree img { width: 100%; height: 100%; object-fit: contain; }
.rb-sum { align-items: stretch; text-align: left; padding: 7% 8%; }
.rb-hd { display: flex; justify-content: space-between; align-items: baseline; gap: .4em; }
.rb-t { font-family: "Noto Serif TC", "Playfair Display", serif; font-size: 1.05em; color: var(--green); font-weight: 700; }
.rb-d { font-size: .6em; color: var(--text-mid); white-space: nowrap; }
.rb-animal { display: flex; align-items: center; gap: .6em; margin: .6em 0 .3em; }
.rb-animal img { width: 34%; aspect-ratio: 1; border-radius: 50%; border: .18em solid #fff; box-shadow: 0 .15em .4em rgba(0, 0, 0, .15); }
.rb-animal small { display: block; font-size: .56em; color: var(--text-mid); }
.rb-animal b { font-size: .9em; }
.rb-rows div { display: flex; align-items: baseline; gap: .5em; padding: .3em 0; border-bottom: 1px solid rgba(23, 96, 76, .12); }
.rb-rows span { width: 5.6em; font-size: .62em; color: var(--text-mid); }
.rb-rows strong { font-size: 1.02em; color: var(--green); }
.rb-rows em { font-style: normal; font-size: .56em; color: var(--text-mid); }
.rb-cheer { margin-top: auto; font-size: .6em; color: var(--green); text-align: center; }
.rb-total { justify-content: center; text-align: center; }
.rb-k { font-size: .56em; letter-spacing: .25em; color: #b0754b; }
.rb-h { font-family: "Noto Serif TC", "Playfair Display", serif; font-weight: 700; color: var(--green); font-size: 1.2em; margin: .3em 0 .8em; line-height: 1.4; }
.rb-nums { display: grid; grid-template-columns: 1fr 1fr; gap: .7em; width: 100%; }
.rb-nums b { display: block; font-size: 1.45em; color: var(--green); line-height: 1.1; }
.rb-nums span { font-size: .58em; color: var(--text-mid); }
.rb-letter { background: #fffaf0 repeating-linear-gradient(transparent 0 1.75em, rgba(23, 96, 76, .13) 1.75em calc(1.75em + 1px)); align-items: stretch; text-align: left; padding: 8% 9%; }
.rb-lt { font-family: "Noto Serif TC", "Playfair Display", serif; font-weight: 700; color: var(--green); font-size: .88em; text-align: center; margin-bottom: .5em; }
.rb-letter p { font-size: .72em; line-height: 2.43em; margin: 0; color: #3b4a43; }
.rb-sig { margin-top: auto; text-align: right; font-size: .64em; color: var(--text-mid); }
.rb-end { justify-content: center; }
.rb-end img { width: 40%; opacity: .9; }
.recap-caption { text-align: center; font-size: 14px; color: var(--text-mid); margin: 0; }
.soon { display: inline-block; font-size: 12px; font-weight: 700; color: #b0754b; border: 1px solid #e3c3a6; background: #fbf1e7; border-radius: 999px; padding: 1px 10px; margin-left: 6px; vertical-align: middle; }

/* 區塊 */
section.block { padding: 64px 0; border-top: 1px solid var(--line); }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(26px, 3.6vw, 36px); }
.section-head p { color: var(--text-mid); margin: 14px 0 0; }
.divider { width: 220px; margin: 18px auto 0; opacity: .9; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 22px;
  padding: 22px; text-align: center;
}
.card > img { height: 170px; width: 100%; object-fit: contain; margin-bottom: 14px; }
.card .num { font-family: "Playfair Display", serif; color: var(--accent); font-size: 22px; font-weight: 700; }
.card h3 { font-size: 20px; margin: 4px 0 8px; }
.card p { color: var(--text-mid); margin: 0; font-size: 15px; }

/* 樹徽章 */
.tree-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; height: 170px; margin-bottom: 14px; align-content: center; justify-items: center; }
.tree-row img, .tree-grid img { border-radius: 50%; aspect-ratio: 1; object-fit: cover; }
.tree-row img { width: 72px; }
.seasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tree-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; max-width: 300px; margin: 6px auto 18px; }
.tree-grid img { width: 100%; }

/* 真實畫面 */
.screens { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.screen { text-align: center; }
.screen .phone { margin: 0 auto 14px; max-width: 220px; }
.screen h3 { font-size: 18px; }
.screen p { color: var(--text-mid); font-size: 14px; margin: 4px 0 0; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split + .split { margin-top: 56px; }
.split h2 { font-size: clamp(24px, 3.2vw, 32px); margin-bottom: 12px; }
.split p { color: var(--text-mid); }
.split ul { padding-left: 1.2em; color: var(--text-mid); }
.split li { margin: 6px 0; }
.milestone-img { max-width: 340px; margin: 0 auto; border-radius: 26px; box-shadow: 0 18px 40px rgba(14, 61, 41, .14); }

/* 隱私 */
.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.trust .card { text-align: left; }
.trust .ico {
  width: 46px; height: 46px; border-radius: 14px; background: #e8f0ea;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}

/* 常見問題 */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 4px 22px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--green-dark); padding: 14px 0; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 10px; font-size: 22px; color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; color: var(--text-mid); }

/* 頁尾 */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--text-mid); font-size: 14px; }
footer .row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
footer nav a { color: var(--text-mid); margin-left: 18px; }
footer nav a:first-child { margin-left: 0; }

/* 條款／說明頁 */
.doc { max-width: 760px; margin: 0 auto; padding: 24px 0 72px; }
.doc h1 { font-size: clamp(28px, 4vw, 38px); margin-bottom: 6px; }
.doc .meta { color: var(--text-mid); font-size: 14px; margin: 0 0 32px; }
.doc h2 { font-size: 21px; margin: 36px 0 10px; }
.doc p, .doc li { color: var(--text); }
.doc ul, .doc ol { padding-left: 1.3em; }
.doc li { margin: 6px 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.doc th { background: #f3eedf; }
.doc .box { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px 22px; margin: 18px 0; }

/* 單頁訊息（確認成功等） */
.notice {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 40px 20px; position: relative; overflow: hidden;
}
.notice .leaf { position: absolute; width: 130px; opacity: .85; pointer-events: none; }
.notice .leaf.tl { top: 0; left: 0; }
.notice .leaf.br { bottom: 0; right: 0; }
.notice-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 28px;
  max-width: 440px; width: 100%; padding: 40px 30px; text-align: center; position: relative;
}
.notice-card .icon { width: 76px; margin: 0 auto 6px; }
.notice-card .word { height: 26px; width: auto; margin: 0 auto 26px; }
.check {
  width: 62px; height: 62px; border-radius: 50%; background: var(--green);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 18px;
}
.notice-card h1 { font-size: 26px; }
.notice-card p { color: var(--text-mid); margin: 14px 0 0; }
.notice-card .hint { font-size: 13px; margin-top: 24px; }
.invite-code {
  font-family: "Playfair Display", serif; font-variant-numeric: lining-nums; font-size: 40px; letter-spacing: 8px; color: var(--green);
  background: #f5efe2; border-radius: 14px; padding: 12px 10px 12px 18px; margin: 24px auto 0; display: inline-block;
}
.open-btn {
  display: block; margin: 22px auto 0; max-width: 280px; padding: 14px 20px; border-radius: 30px;
  background: var(--green); color: #fff; font-weight: 700; font-size: 16px; text-decoration: none;
}

@media (max-width: 900px) {
  .screens { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .hero, .split, .seasons, .trust { grid-template-columns: 1fr; }
  .hero { padding-top: 8px; gap: 32px; }
  .hero-art { order: -1; }
  .steps { grid-template-columns: 1fr; }
  .split { gap: 28px; }
  .split .media { order: -1; }
  footer nav a { margin-left: 0; margin-right: 18px; }
}
@media (max-width: 480px) {
  .screens { gap: 14px; }
  .screen .phone { border-radius: 26px; padding: 6px; }
  .screen .phone img { border-radius: 21px; }
}

.split .media > img:not(.milestone-img) { max-width: 360px; margin: 0 auto; }
.doc td:first-child, .doc th:first-child { white-space: nowrap; }