/* 2026 清華大學圖書館月｜閱日常・悅永續 */
/* ---------- 字型：使用網站根目錄 /fonts 的 Noto Sans TC／Noto Serif TC ----------
   原始字型每個約 7～10MB，所以只取出網頁用到的字，存在 libmonth/fonts/ 裡（每個約 120～160KB）。
   網頁新增文字後，請執行 fonts/make-subset.py 重新產生；沒收錄到的字會暫時用系統字型顯示。 */
@font-face { font-family: "Noto Sans TC";  font-weight: 400; font-display: swap; src: url("../fonts/lm-sans-400.woff2?v=20261020") format("woff2"); }
@font-face { font-family: "Noto Sans TC";  font-weight: 500; font-display: swap; src: url("../fonts/lm-sans-500.woff2?v=20261020") format("woff2"); }
@font-face { font-family: "Noto Sans TC";  font-weight: 700; font-display: swap; src: url("../fonts/lm-sans-700.woff2?v=20261020") format("woff2"); }
@font-face { font-family: "Noto Serif TC"; font-weight: 700; font-display: swap; src: url("../fonts/lm-serif-700.woff2?v=20261020") format("woff2"); }
@font-face { font-family: "Noto Serif TC"; font-weight: 900; font-display: swap; src: url("../fonts/lm-serif-900.woff2?v=20261020") format("woff2"); }

:root {
  --lm-bg: #e5dec7;          /* 海報底色 */
  --lm-paper: #f4f0e3;       /* 卡片底色 */
  --lm-paper-2: #ece5d0;
  --lm-green: #2f4e2a;       /* 主色：墨綠 */
  --lm-green-2: #4d6f45;
  --lm-leaf: #6f9a63;
  --lm-yellow: #e7b93b;      /* 點綴：黃 */
  --lm-yellow-soft: #f6e3a6;
  --lm-brown: #8a6a45;
  --lm-text: #2b2a22;
  --lm-muted: #5d5a4b;
  --lm-radius: 28px;
  --bs-body-font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  --bs-body-color: var(--lm-text);
  --bs-body-bg: var(--lm-bg);
  --bs-link-color: var(--lm-green);
  --bs-link-hover-color: var(--lm-green-2);
}

html { scroll-padding-top: 76px; }
body {
  background: var(--lm-bg);
  color: var(--lm-text);
  font-family: var(--bs-body-font-family);
  line-height: 1.8;
  letter-spacing: .02em;
}
img { max-width: 100%; height: auto; }
a { color: var(--lm-green); }
.visually-hidden-focusable:focus { background: var(--lm-yellow); padding: .5rem 1rem; z-index: 2000; }

/* ---------- 導覽列 ---------- */
.lm-nav {
  background: rgba(229, 222, 199, .92);
  backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--lm-green);
}
.lm-nav .navbar-brand {
  color: var(--lm-green);
  font-weight: 700;
  display: flex; align-items: center; gap: .5rem;
}
.lm-nav .navbar-brand img { height: 34px; width: auto; }
.lm-nav .nav-link {
  color: var(--lm-green);
  font-weight: 500;
  padding: .4rem .9rem !important;
  border-radius: 999px;
  line-height: 1.3;
  text-align: center;
}
.lm-nav .nav-link small { display: block; font-size: .68rem; letter-spacing: .06em; opacity: .75; }
.lm-nav .nav-link:hover,
.lm-nav .nav-link.active { background: var(--lm-green); color: #fff; }
.lm-nav .navbar-toggler { border: 2px solid var(--lm-green); }
.lm-nav .navbar-toggler:focus { box-shadow: 0 0 0 .2rem rgba(47, 78, 42, .3); }

/* ---------- 主視覺 ---------- */
/* 動態主視覺（插畫動畫由 js/landing.js 讀取 images/kv.svg、images/title.svg 製作）
   ▼ 版面微調：直接改下面三個數值 */
.landing {
  --copy-shift: 5vw;          /* 桌機版：左側文字區往中間推的距離（0 = 貼齊左邊；數字越大越靠中間） */
  --title-w-desktop: 560px;   /* 桌機版：「閱日常・悅永續」標題最大寬度（螢幕較窄時會自動縮小） */
  --title-w-mobile: 78%;      /* 手機版：「閱日常・悅永續」標題寬度（相對於螢幕寬，100% = 滿版） */
  --nav-h: 72px;              /* 上方導覽列的高度（主視覺會避開） */
  position: relative;
  min-height: 100vh; min-height: 100svh;
  padding-top: var(--nav-h);
  display: flex; align-items: center;
  overflow: hidden;
}
.landing-inner {
  width: 100%; max-width: 1400px; margin: 0 auto;
  padding: 16px 32px 56px;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 24px; align-items: center;
}
.landing .copy { position: relative; z-index: 2; padding-left: var(--copy-shift); }
.landing #title { margin: 0; width: calc(100% + var(--copy-shift)); max-width: var(--title-w-desktop); }
.landing #title svg { width: 100%; height: auto; display: block; overflow: visible; }
.landing .sub { margin: 0 0 .6rem; color: var(--lm-green); font-weight: 700; letter-spacing: .3em; font-size: clamp(.95rem, 1.4vw, 1.15rem); }
.landing .date {
  display: inline-block; margin: 1.5rem 0 0;
  background: var(--lm-green); color: #fff; border-radius: 999px;
  padding: .3rem 1.2rem; font-weight: 700; font-size: clamp(.9rem, 1.3vw, 1.05rem);
}
.landing .lead { margin: 1rem 0 0; font-size: clamp(1rem, 1.4vw, 1.15rem); font-weight: 500; line-height: 1.8; }
.landing .lead strong { color: var(--lm-green); font-size: 1.35em; }
.landing .cta {
  display: inline-block; margin-top: 1.5rem;
  background: var(--lm-green); color: #fff; text-decoration: none; font-weight: 700;
  padding: .65rem 1.8rem; border-radius: 999px; border: 2px solid var(--lm-green); transition: background .2s;
}
.landing .cta:hover { background: var(--lm-green-2); color: #fff; }
.landing .fade-late { opacity: 0; }
.landing .nw { white-space: nowrap; }
.landing .art { position: relative; z-index: 1; }
.landing #kv svg {
  width: 100%; height: auto; display: block; margin: 0 auto; overflow: visible;
  max-height: calc(100vh - var(--nav-h) - 72px); max-height: calc(100svh - var(--nav-h) - 72px);
}
.landing #kv, .landing #title { visibility: hidden; }
.landing #kv.ready, .landing #title.ready { visibility: visible; }

/* 往下的箭頭 */
.scroll-arrow {
  position: absolute; left: 0; right: 0; bottom: 10px; margin: 0 auto;
  width: 44px; height: 44px; display: grid; place-items: center;
  color: var(--lm-green); z-index: 5; opacity: 0;
}
.scroll-arrow svg { width: 30px; height: 30px; animation: lm-cue 1.6s ease-in-out infinite; }
@keyframes lm-cue { 50% { transform: translateY(6px); } }

/* Skip／Replay：固定在視窗右下角；捲離主視覺時隱藏（換成「回到頂端」按鈕） */
.landing-ctrl { position: fixed; right: 16px; bottom: 16px; display: flex; gap: 8px; z-index: 1040; transition: opacity .25s, visibility 0s; }
.landing-ctrl.off { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .25s, visibility 0s .25s; }   /* 淡出後完全隱藏 */
.landing-ctrl button {
  font: inherit; font-size: .85rem; font-weight: 700; color: var(--lm-green); background: var(--lm-paper);
  border: 2px solid var(--lm-green); border-radius: 999px; padding: .3rem 1rem; cursor: pointer;
}
.landing-ctrl button:hover { background: var(--lm-green); color: #fff; }

/* 手機版：文字＋插畫一起放進一個畫面，插畫自動縮放到剩下的高度，左右完整不裁切 */
@media (max-width: 991.98px) {
  .landing { --nav-h: 64px; height: 100vh; height: 100svh; min-height: 600px; align-items: stretch; }
  .landing-inner { display: flex; flex-direction: column; height: 100%; padding: 16px 16px 52px; text-align: center; gap: 4px; }
  .landing .copy { flex: none; max-width: 560px; margin: 0 auto 20px; padding-left: 0; }   /* 20px＝「活動辦法」按鈕與插圖的間距 */
  .landing #title { width: var(--title-w-mobile); margin: 0 auto; }
  .landing .sub { margin-bottom: .3rem; letter-spacing: .2em; }
  .landing .date { margin-top: .9rem; }
  .landing .lead { margin-top: .6rem; line-height: 1.7; }
  .landing .lead br { display: none; }
  .landing .cta { margin-top: .9rem; padding: .5rem 1.5rem; }
  .landing .art { flex: 1 1 auto; min-height: 0; display: flex; }
  .landing #kv { flex: 1; min-height: 0; display: flex; }
  .landing #kv svg { width: 100%; height: 100%; max-height: none; }
  .scroll-arrow { bottom: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-arrow svg { animation: none; }
}

.btn-lm {
  --bs-btn-bg: var(--lm-green);
  --bs-btn-border-color: var(--lm-green);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--lm-green-2);
  --bs-btn-hover-border-color: var(--lm-green-2);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: #243d20;
  --bs-btn-focus-shadow-rgb: 47, 78, 42;
  border-radius: 999px;
  padding: .55rem 1.5rem;
  font-weight: 700;
  border-width: 2px;
}
.btn-lm-outline {
  --bs-btn-color: var(--lm-green);
  --bs-btn-border-color: var(--lm-green);
  --bs-btn-hover-bg: var(--lm-green);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-border-color: var(--lm-green);
  --bs-btn-active-bg: var(--lm-green);
  --bs-btn-active-color: #fff;
  --bs-btn-focus-shadow-rgb: 47, 78, 42;
  border-radius: 999px;
  padding: .45rem 1.25rem;
  font-weight: 700;
  border-width: 2px;
  background: transparent;
}
.btn-lm-sm { padding: .3rem 1rem; font-size: .92rem; }

/* ---------- 區塊 ---------- */
.lm-section { padding: var(--lm-section-pad, 104px) 0; position: relative; }   /* 每個區塊上下留白（可調整 --lm-section-pad） */
.lm-section.alt { background: var(--lm-paper-2); }
.lm-heading { text-align: center; margin-bottom: 3rem; }
.lm-heading h2 {
  font-family: "Noto Serif TC", serif;
  font-weight: 900;
  color: var(--lm-green);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  margin: 0;
  letter-spacing: .12em;
}
.lm-heading .en {
  display: block;
  color: var(--lm-brown);
  font-size: .9rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  margin-top: .25rem;
}
.lm-heading::after {
  content: "";
  display: block;
  width: 56px; height: 6px;
  margin: .9rem auto 0;
  border-radius: 6px;
  background: var(--lm-yellow);
}

.lm-card {
  background: var(--lm-paper);
  border: 2px solid var(--lm-green);
  border-radius: var(--lm-radius);
  padding: 1.75rem;
  height: 100%;
}
.lm-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--lm-green);
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: .5rem;
}
.lm-card h3 .ico { width: 1.4em; height: 1.4em; flex: none; }

/* 活動辦法 */
.lm-rules { counter-reset: r; list-style: none; padding: 0; margin: 0; }
.lm-rules li { counter-increment: r; position: relative; padding-left: 2.4rem; margin-bottom: .7rem; }
.lm-rules li::before {
  content: counter(r);
  position: absolute; left: 0; top: .2rem;
  width: 1.7rem; height: 1.7rem;
  border-radius: 50%;
  background: var(--lm-green); color: #fff;
  font-size: .85rem; font-weight: 700;
  display: grid; place-items: center;
  line-height: 1;
}

/* 獎項 */
.prize {
  background: #fff;
  border: 2px solid var(--lm-green);
  border-radius: 22px;
  padding: 1rem 1rem 1.25rem;
  text-align: center;
  height: 100%;
  position: relative;
  transition: transform .2s ease, box-shadow .2s ease;
}
.prize:hover { transform: translateY(-4px); box-shadow: 0 10px 0 -2px var(--lm-green); }
.prize .rank {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--lm-green); color: #fff;
  font-weight: 700; font-size: .9rem;
  padding: .15rem 1rem; border-radius: 999px; white-space: nowrap;
}
.prize.top .rank { background: var(--lm-yellow); color: var(--lm-text); }
.prize img { aspect-ratio: 1 / 1; object-fit: contain; width: 100%; max-width: 220px; display: block; margin: .75rem auto .5rem; }
.prize .name { font-weight: 700; line-height: 1.5; }
.prize .qty { color: var(--lm-muted); font-size: .9rem; }
.prize .note { font-size: .78rem; color: var(--lm-muted); line-height: 1.5; margin-top: .4rem; }

.prize.bonus { background: var(--lm-yellow-soft); border-style: dashed; }
.prize.bonus .rank { background: var(--lm-yellow); color: var(--lm-text); border: 2px solid var(--lm-green); }
.prize.bonus .pair { display: flex; gap: .5rem; margin: .75rem 0 .5rem; }
.prize.bonus .pair figure { flex: 1; margin: 0; }
.prize.bonus .pair img { margin: 0; background: #fff; border-radius: 14px; border: 2px solid var(--lm-green); aspect-ratio: 1 / 1; }
.prize.bonus .pair figcaption { font-size: .78rem; font-weight: 700; margin-top: .3rem; line-height: 1.4; }
.prize.bonus .or { align-self: center; font-weight: 900; color: var(--lm-green); font-size: .9rem; margin-top: -1.2rem; }

/* 關卡任務 */
.lm-points {
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center;
  margin-bottom: 2rem;
}
.lm-points span {
  background: var(--lm-paper); border: 2px solid var(--lm-green);
  border-radius: 999px; padding: .25rem 1rem; font-weight: 500;
}
.lm-points b { color: var(--lm-green); }
.mission {
  background: var(--lm-paper);
  border: 2px solid var(--lm-green);
  border-radius: 24px;
  padding: 1.5rem 1.5rem 1.25rem;
  height: 100%;
  display: flex; flex-direction: column;
  position: relative;
}
.mission .no {
  font-family: "Noto Serif TC", serif;
  font-weight: 900;
  color: var(--lm-green);
  font-size: .95rem;
  letter-spacing: .1em;
}
.mission .no b { font-size: 2rem; line-height: 1; margin-left: .2rem; }
.mission .pt {
  position: absolute; top: 1.1rem; right: 1.1rem;
  width: 3.6rem; height: 3.6rem; border-radius: 50%;
  background: var(--lm-yellow); color: var(--lm-text);
  border: 2px solid var(--lm-green);
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1px;
  align-items: baseline;    /* 數字與「點」底部對齊 */
  align-content: center;    /* 整組在圓圈內垂直置中 */
  font-weight: 900; line-height: 1; font-size: 1.4rem;
  transform: rotate(10deg);                                                /* 整體向右旋轉 */
}
.mission .pt small { font-size: .78rem; font-weight: 700; line-height: 1; position: relative; top: -.1em; }   /* 中文字會略低於數字，往上微調讓兩者底部切齊 */
.mission.pt1 .pt { background: #fff; }
.mission h3 { font-size: 1.12rem; font-weight: 700; margin: .5rem 4rem .5rem 0; line-height: 1.55; }
.mission .desc { color: var(--lm-muted); margin-bottom: .75rem; flex: 1; }
.mission .desc .tip { display: block; margin-top: .5rem; font-size: .88rem; color: var(--lm-brown); }   /* 關卡說明下方的小提示 */
.meta { display: flex; align-items: flex-start; gap: .35rem; font-size: .95rem; color: var(--lm-green); font-weight: 500; }
.meta svg { flex: none; width: 1.1em; height: 1.1em; margin-top: .35em; }

/* 好書交換 */
.steps { position: relative; }
.step {
  background: var(--lm-paper);
  border: 2px solid var(--lm-green);
  border-radius: 24px;
  padding: 1.5rem;
  height: 100%;
}
.step .tag {
  display: inline-block;
  background: var(--lm-green); color: #fff;
  font-weight: 700; font-size: 1.15rem;
  padding: .2rem 1.1rem; border-radius: 999px; margin-bottom: .75rem;
}
.step .tag small { font-size: .75rem; font-weight: 500; margin-left: .25rem; }
.step dl { margin: 0; }
.step dt { font-weight: 700; }
.step dd { margin: 0 0 .25rem; }
.step .arrow { display: none; }
@media (min-width: 992px) {
  .steps > .step-col + .step-col .step::before {   /* 箭頭畫在第 2、3 個區塊的左邊 */
    content: "";
    position: absolute; left: -22px; top: 50%;
    width: 20px; height: 20px;
    border-top: 3px solid var(--lm-green); border-right: 3px solid var(--lm-green);
    transform: translateY(-50%) rotate(45deg);
  }
  .steps .step { position: relative; }
}

/* 展覽／活動 */
.event {
  background: var(--lm-paper);
  border: 2px solid var(--lm-green);
  border-radius: 24px;
  padding: 1.5rem;
  height: 100%;
  display: flex; flex-direction: column;
}
.event .type {
  display: inline-block; align-self: flex-start;
  background: var(--lm-yellow-soft); color: var(--lm-green);
  border: 1.5px solid var(--lm-green);
  font-size: .8rem; font-weight: 700;
  padding: 0 .75rem; border-radius: 999px; margin-bottom: .6rem;
}
.event h3 { font-size: 1.2rem; font-weight: 700; color: var(--lm-text); line-height: 1.6; margin-bottom: .75rem; }
.event .body { flex: 1; margin-bottom: 1rem; }
.event .actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.tbd { color: var(--lm-brown); font-style: normal; font-weight: 500; }

/* 裝飾角色 */
.deco { position: absolute; pointer-events: none; z-index: 0; }
.lm-section > .container { position: relative; z-index: 1; }
.deco-char1 { width: 120px; right: 3%; top: 30px; }
.deco-char2 { width: 150px; left: 2%; bottom: 20px; }
.deco-plant { width: 110px; right: 2%; bottom: 10px; }
.deco-panda { width: 200px; left: 50%; transform: translateX(-50%); bottom: -8px; }
@media (max-width: 1199.98px) { .deco { display: none; } }

/* 海報 Modal */
.poster-modal .modal-content { background: var(--lm-paper); border: 2px solid var(--lm-green); border-radius: var(--lm-radius); }
.poster-modal .modal-header { border-bottom: 0; }
.poster-modal .modal-title { color: var(--lm-green); font-weight: 700; }
.poster-modal img { border-radius: 12px; display: block; margin: 0 auto; }
.poster-placeholder {
  border: 2px dashed var(--lm-green);
  border-radius: 20px;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--lm-muted);
}
.poster-placeholder img { width: 170px; margin-bottom: 1rem; }

/* 頁尾 */
.lm-footer {
  background: var(--lm-green);
  color: #f4f0e3;
  padding: 5rem 0 5rem;
  position: relative;
}
.lm-footer a { color: #fff; }
.lm-footer .contact { font-size: 1.1rem; font-weight: 500; }

/* 回到頂端 */
.to-top {
  position: fixed; right: 16px; bottom: 16px; z-index: 1030;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--lm-yellow); border: 2px solid var(--lm-green); color: var(--lm-green);
  display: grid; place-items: center;
  opacity: 0; visibility: hidden; transition: opacity .25s;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top svg { width: 22px; height: 22px; }

@media (max-width: 991.98px) {
  .lm-nav .navbar-collapse { padding: .5rem 0 1rem; }
  .lm-nav .nav-link { text-align: left; }
  .lm-nav .nav-link small { display: inline; margin-left: .5rem; }
}
@media (max-width: 575.98px) {
  .lm-section { --lm-section-pad: 76px; }
  .lm-card, .mission, .event, .step { padding: 1.25rem; }
}
@media (prefers-reduced-motion: reduce) {
  .prize { transition: none; }
}

/* Modal 關閉鈕（避免被全站樣式覆寫） */
/* 關閉鈕：X 直接畫在按鈕裡（不用 data: 背景圖，避免被主機的安全設定擋掉） */
.poster-modal .lm-close {
  flex: none; margin-left: auto;
  width: 2.25rem; height: 2.25rem; padding: 0;
  border: 0; border-radius: 50%;
  background: var(--lm-green); color: #fff;
  display: grid; place-items: center; cursor: pointer;
}
.poster-modal .lm-close svg { width: .9rem; height: .9rem; }
.poster-modal .lm-close:hover { background: var(--lm-green-2); }
.poster-modal .lm-close:focus-visible { outline: 3px solid var(--lm-yellow); outline-offset: 2px; }
@media (max-width: 575.98px) {
}

/* ---------- 區塊裝飾人物（SVG，動畫由 js/deco.js 處理） ----------
   width 控制大小；top／right／bottom／left 控制位置（相對於各區塊的 container） */
.deco-svg { position: absolute; z-index: 2; pointer-events: none; }
.deco-svg svg { display: block; width: 100%; height: auto; overflow: visible; }
.lm-card, .event { position: relative; }                          /* 讓人物可以疊在卡片上 */
.deco-backpack { width: 66px;  right: 18px; top: -96px; }          /* 關卡任務挑戰：參加資格卡片右上角 */
.deco-col { display: flex; align-items: flex-end; }
.deco-think    { position: static; width: 130px; }                  /* 好書交換：和三個區塊同一行（最左邊） */
.deco-read     { width: 156px; right: 10px; bottom: -28px; z-index: 3; }   /* 主題展覽：清自攝影回顧展卡片右下 */
.deco-flag     { width: 128px; right: -30px; bottom: -40px; z-index: 3; }  /* 精彩活動：壓在「走！讀風城」卡片右下 */
@media (max-width: 991.98px) { .deco-col { display: none; } }
@media (max-width: 991.98px) { .deco-svg { display: none; } }  /* 手機與平板不顯示 */

/* ---------- 手機版：漢堡按鈕＋全螢幕選單（js/menu.js） ---------- */
.lm-burger {
  position: relative; width: 44px; height: 44px; padding: 0;
  border-radius: 50%; border: 2px solid var(--lm-green); background: var(--lm-paper);
  transition: background .3s ease;
}
.lm-burger span {
  position: absolute; left: 11px; height: 2.5px; border-radius: 2px; background: var(--lm-green);
  transition: transform .3s ease, opacity .2s ease, top .3s ease, width .3s ease, background .3s ease;
}
.lm-burger span:nth-child(1) { top: 13px;   width: 18px; }
.lm-burger span:nth-child(2) { top: 19.5px; width: 13px; }      /* 三條線長短不一，帶一點手繪感 */
.lm-burger span:nth-child(3) { top: 26px;   width: 16px; }
.lm-burger:focus-visible { outline: 3px solid var(--lm-yellow); outline-offset: 2px; }
.lm-menu-open .lm-burger { background: var(--lm-green); }
.lm-menu-open .lm-burger span { background: #fff; width: 18px; }
.lm-menu-open .lm-burger span:nth-child(1) { top: 19.5px; transform: rotate(45deg); }   /* 變成 X */
.lm-menu-open .lm-burger span:nth-child(2) { opacity: 0; }
.lm-menu-open .lm-burger span:nth-child(3) { top: 19.5px; transform: rotate(-45deg); }

.lm-menu {
  position: fixed; inset: 0; z-index: 1029;                  /* 在導覽列（1030）下面，漢堡按鈕仍可點 */
  /* 主視覺插畫當背景：貼齊畫面底部、左右滿版，由下往上呈現（上方被選單蓋住也沒關係） */
  background: var(--lm-bg) url("../images/kv.webp") no-repeat center bottom / 85% auto;
  padding: 80px 24px 0;
  display: flex; flex-direction: column;
  overflow-y: auto; overscroll-behavior: contain;
  opacity: 0; transition: opacity .3s ease;
}
.lm-menu[hidden] { display: none; }
.lm-menu-open .lm-menu { opacity: 1; }
.lm-menu-inner { width: 100%; max-width: 420px; margin: 0 auto; text-align: center; }
.lm-menu-title { width: 72%; max-width: 300px; display: block; margin: 1.6rem auto 2.2rem; }   /* 標題上下留白 */
.lm-menu-date {
  display: inline-block; margin: .7rem 0 .9rem;
  background: var(--lm-green); color: #fff; border-radius: 999px;
  padding: .2rem 1rem; font-weight: 700; font-size: .88rem;
}
.lm-menu-list { list-style: none; margin: 0; padding: 0; text-align: left; }
.lm-menu-list li {
  border-top: 1.5px dashed rgba(47, 78, 42, .35);
  opacity: 0; transform: translateY(10px);
  transition: opacity .35s ease, transform .35s ease;
  transition-delay: calc(.1s + var(--i, 0) * .05s);           /* 項目依序淡入 */
}
.lm-menu-list li:last-child { border-bottom: 1.5px dashed rgba(47, 78, 42, .35); }
.lm-menu-open .lm-menu-list li { opacity: 1; transform: none; }
.lm-menu-list a {
  display: flex; align-items: center; gap: .9rem;
  padding: .5rem .6rem; border-radius: 14px;
  color: var(--lm-green); text-decoration: none;
}
.lm-menu-list .no { font-family: "Noto Serif TC", serif; font-weight: 900; font-size: 1rem; color: var(--lm-brown); min-width: 1.7em; }
.lm-menu-list b { display: block; font-family: "Noto Serif TC", serif; font-weight: 900; font-size: 1.3rem; letter-spacing: .08em; line-height: 1.3; }
.lm-menu-list small { display: block; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--lm-muted); }
.lm-menu-list .no, .lm-menu-list b, .lm-menu-list small {   /* 插畫疊到選項時，文字周圍加一圈底色光暈，維持可讀 */
  text-shadow: 0 0 3px var(--lm-bg), 0 0 6px var(--lm-bg), 0 0 10px var(--lm-bg);
}
.lm-menu-list a:hover, .lm-menu-list a:focus-visible, .lm-menu-list a.active { background: var(--lm-yellow-soft); outline: none; }
.lm-menu-cta {
  display: inline-block; margin: 1.2rem 0 .5rem;
  background: var(--lm-green); color: #fff; text-decoration: none; font-weight: 700;
  padding: .5rem 1.7rem; border-radius: 999px;
}
.lm-menu-cta:hover { background: var(--lm-green-2); color: #fff; }
html.lm-menu-open { overflow: hidden; }                        /* 選單打開時鎖住背景捲動 */
.lm-menu-open .landing-ctrl, .lm-menu-open .to-top { opacity: 0 !important; visibility: hidden !important; }
@media (max-height: 700px) {                                   /* 螢幕較矮的手機：項目再緊湊一點 */
  .lm-menu { padding-top: 72px; }
  .lm-menu-title { width: 60%; margin: .9rem auto 1.3rem; }
  .lm-menu-list a { padding: .32rem .6rem; }
  .lm-menu-list b { font-size: 1.12rem; }
  .lm-menu-cta { margin-top: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
  .lm-menu, .lm-menu-list li, .lm-burger, .lm-burger span { transition: none; }
}

/* ===== 區塊標題進場動畫（js/libmonth.js 加上 .lm-reveal／.is-in） ===== */
.lm-reveal h2 .ch {
  display: inline-block;
  opacity: 0;
  transform: translateY(.6em) rotate(-8deg);
  transition: opacity .5s ease, transform .6s cubic-bezier(.34, 1.56, .64, 1);
  transition-delay: calc(var(--i) * 70ms);
}
.lm-reveal .en {
  opacity: 0;
  letter-spacing: .7em;
  transition: opacity .6s ease, letter-spacing .9s cubic-bezier(.22, 1, .36, 1);
  transition-delay: calc(var(--n, 4) * 70ms + 150ms);
}
.lm-reveal::after {
  transform: scaleX(0);
  transition: transform .6s cubic-bezier(.65, 0, .35, 1);
  transition-delay: calc(var(--n, 4) * 70ms + 350ms);
}
.lm-reveal.is-in h2 .ch { opacity: 1; transform: none; }
.lm-reveal.is-in .en { opacity: 1; letter-spacing: .25em; }
.lm-reveal.is-in::after { transform: scaleX(1); }
@media (prefers-reduced-motion: reduce) {
  .lm-reveal h2 .ch, .lm-reveal .en, .lm-reveal::after { opacity: 1; transform: none; letter-spacing: .25em; transition: none; }
}

/* ===== 參加獎（禮物圖示）、現場參加提示 ===== */
.prize.bonus .gift {
  width: 100%; max-width: 220px; aspect-ratio: 1 / 1;
  margin: .75rem auto .5rem;
  display: grid; place-items: center;
  background: #fff; border: 2px solid var(--lm-green); border-radius: 14px;
  color: var(--lm-green);
}
.prize.bonus .gift svg { width: 46%; height: 46%; }
.prize.bonus .name small { font-weight: 500; color: var(--lm-muted); }
.deco-flag ~ .actions { padding-right: 84px; }   /* 按鈕避開右下角的拿旗人物 */

/* ===== 參加獎：三款小禮物一張圖（images/prizes/bonus-set.webp，去背 PNG 轉檔） ===== */
.prize.bonus img { aspect-ratio: auto; max-width: 80%; height: auto; }   /* 橫幅圖：照原比例、無框線無底色 */

/* ===== 精彩活動：系列活動（演講＋小測驗） ===== */
.event.series .sub-list { margin-bottom: .25rem; }
.event.series .sub {
  position: relative; height: 100%;
  display: flex; flex-direction: column; align-items: flex-start;
}
.event.series .sub-list > div + div .sub::before {             /* 兩個項目之間的淡色分隔線 */
  content: ""; position: absolute; background: var(--lm-green); opacity: .2;
  left: 0; right: 0; top: -.75rem; height: 2px;
}
@media (min-width: 768px) {
  .event.series .sub-list > div + div .sub::before { left: -1.5rem; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
}
.event.series .sub-tag { font-size: .8rem; font-weight: 700; color: var(--lm-brown); letter-spacing: .05em; margin-bottom: .2rem; }
.event.series .sub h4 { font-size: 1.05rem; font-weight: 700; line-height: 1.55; margin-bottom: .5rem; text-wrap: balance; }
.event.series .sub h4 .subtitle { display: block; font-size: .88rem; font-weight: 500; color: var(--lm-muted); margin-top: .2rem; }
.event.series .sub .meta { margin-bottom: .15rem; }
.event.series .speakers { color: var(--lm-text); font-size: .92rem; line-height: 1.7; margin: .1rem 0 .5rem; }
.event.series .speakers b { color: var(--lm-green); }
.event.series .quiz-prize {                                     /* 小測驗的抽獎獎品 */
  display: flex; align-items: center; gap: .9rem; margin-top: .9rem;
  font-size: .9rem; line-height: 1.6;
}
.event.series .quiz-prize .zoom {                               /* 點縮圖放大（#modal-quiz-prize） */
  position: relative; flex: none; width: 160px; padding: 0; border: 0; background: none;
  border-radius: 12px; overflow: hidden; cursor: zoom-in;
}
.event.series .quiz-prize .zoom img { display: block; width: 100%; height: auto; transition: transform .3s ease; }
.event.series .quiz-prize .zoom:hover img { transform: scale(1.05); }
.event.series .quiz-prize .zoom:focus-visible { outline: 3px solid var(--lm-yellow); outline-offset: 2px; }
.event.series .quiz-prize .zoom-ico {
  position: absolute; right: 6px; bottom: 6px; width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center; background: var(--lm-green); color: #fff;
}
.event.series .quiz-prize .zoom-ico svg { width: 16px; height: 16px; }
.event.series .quiz-prize .note { color: var(--lm-muted); font-size: .8rem; }
@media (max-width: 575.98px) {                                  /* 手機：照片在上、文字在下 */
  .event.series .quiz-prize { flex-direction: column; align-items: flex-start; }
  .event.series .quiz-prize .zoom { width: 100%; max-width: 320px; }
}
.event.series .quiz-prize .sub-tag { display: inline-block; margin-bottom: 0; }

/* ===== 關卡任務：趴在關卡 1 卡片上方睡覺的熊貓（images/deco/panda.svg） ===== */
.lm-heading { position: relative; }
.deco-sleep { width: 180px; left: 22%; top: -80px; }
@media (max-width: 991.98px) {
  .deco-svg.deco-sleep { display: block; width: 130px; left: 32%; top: -74px; }
  #missions .lm-points { margin-bottom: 4rem; }   /* 留位置給熊貓 */
}

/* ===== 海報下方的活動說明文字（例：清自攝影回顧展） ===== */
.poster-text { margin-top: 1.25rem; padding-top: 1.1rem; border-top: 2px solid rgba(0,0,0,.08); line-height: 1.9; color: var(--lm-text); }
.poster-text p { margin-bottom: 1rem; }
.poster-text a { color: var(--lm-green); font-weight: 500; word-break: break-all; }
.poster-text .info-title { display: inline-block; font-weight: 700; color: var(--lm-green); background: var(--lm-yellow-soft); border: 1.5px solid var(--lm-green); border-radius: 999px; padding: .1rem .9rem; margin: .5rem 0 .75rem; font-size: .95rem; }
.poster-text .info { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0; }
.poster-text .info dt { font-weight: 700; color: var(--lm-green); }
.poster-text .info dd { margin: 0; }