/* E知半解：黑色硬殼筆記本（11/9 Edward 選定）。深色封面＋象牙點格紙內頁；唯一的強調色是緞帶書籤的芥末金；手寫字當眉批 */
:root {
  --cover: #17181a; --cover-2: #222326; --emboss: #8d8f93; --on-cover: #e9e7e1; --on-cover-2: #dcdad3;
  --paper: #f7f5ee; --page: #fbfaf5; --dot: #c9c6bb; --rule: #d9d5c8;
  --ink: #1b1c1e; --ink-2: #55575b; --ink-3: #85878a;
  --ribbon: #c9a43a; --hl: #f0dc8c; --todo: #ffd27a; --white: #ffffff;
  --sans: "Noto Sans TC", "PingFang TC", sans-serif;
  --hand: "LXGW WenKai TC", "Kaiti TC", serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--cover); color: var(--ink); font: 17px/1.85 var(--sans); }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 2px solid var(--ribbon); outline-offset: 3px; }
.wrap { max-width: 1180px; margin: 0 auto; padding-left: max(18px, env(safe-area-inset-left, 0px)); padding-right: max(18px, env(safe-area-inset-right, 0px)); }

/* 封面（深色皮革） */
.leather { background-color: var(--cover);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.bar { position: relative; color: var(--on-cover); overflow: hidden; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-block: 16px; position: relative; z-index: 4; font-size: .92rem; }
.mark { text-decoration: none; font-weight: 700; white-space: nowrap; color: var(--on-cover); }
.mark small { font-family: var(--mono); font-weight: 400; font-size: .72rem; color: var(--emboss); margin-left: 10px; letter-spacing: .04em; }
.top nav { display: flex; gap: 20px; color: var(--emboss); }
.top nav a { text-decoration: none; } .top nav a:hover { color: var(--white); }
.ribbon { position: absolute; z-index: 3; top: 0; left: 46%; width: 16px; height: 120px; background: var(--ribbon); box-shadow: 2px 0 0 rgba(0,0,0,.25); }
.ribbon::after { content: ""; position: absolute; bottom: -12px; left: 0; border: 8px solid var(--ribbon); border-bottom-color: transparent; border-bottom-width: 12px; }
.inner .ribbon { height: 64px; }

.cover-stage { position: relative; min-height: clamp(520px, 44vw, 660px); display: flex; align-items: center; }
.cover-media { position: absolute; top: 0; right: 0; bottom: 0; width: 64%; --fade: linear-gradient(90deg, transparent 0, rgba(0,0,0,.35) 30%, #000 62%); }
.cover-bg { width: 100%; height: 100%; object-fit: cover; object-position: 45% 55%; }
.cover-bg, .ink { -webkit-mask-image: var(--fade); mask-image: var(--fade); }
.ink, .pen-layer { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.ink svg { position: absolute; left: 0; top: 0; width: 1000px; height: 1200px; transform-origin: 0 0; overflow: visible; }
.ink path { fill: none; stroke: #1c2436; stroke-width: 3.2; stroke-linecap: round; stroke-linejoin: round; opacity: .88; }
.ink svg.thick path { stroke-width: 5; }
.ink text { font-family: var(--hand); fill: #1c2436; opacity: .9; }
.ink.fade { transition: opacity 1.2s; opacity: 0; }
.pen { position: absolute; left: 0; top: 0; width: 150px; height: 150px; transform-origin: 0 0; will-change: transform; filter: drop-shadow(6px 10px 6px rgba(0,0,0,.45)); }
.cover-copy { position: relative; z-index: 2; width: 100%; padding-block: 24px 64px; }
.cover-copy > div { max-width: 520px; }
.emboss { margin: 0; font-weight: 900; font-size: clamp(3.4rem, 9vw, 6.6rem); line-height: 1; letter-spacing: .02em; color: #c9c7c0;
  text-shadow: 0 -1px 0 rgba(0,0,0,.9), 0 1px 0 rgba(255,255,255,.08), 0 2px 6px rgba(0,0,0,.6); }
.emboss-en { font-family: var(--mono); letter-spacing: .32em; text-transform: uppercase; font-size: .78rem; color: var(--emboss); margin: 16px 0 30px; }
.cover-copy .intro { font-size: 1.12rem; line-height: 1.9; color: var(--on-cover-2); margin: 0 0 14px; }
.cover-copy .for { color: var(--emboss); font-size: .95rem; margin: 0; }
.grab { font-family: var(--hand); font-size: 1.45rem; color: var(--ribbon); margin: 26px 0 0; transform: rotate(-1.5deg); transform-origin: left; }

/* 內頁（點格紙） */
.sheet { background-color: var(--paper); background-image: radial-gradient(var(--dot) 1.1px, transparent 1.3px); background-size: 22px 22px; background-position: 11px 11px; }
.sheet > .wrap { padding-block: 48px 0; }
.page-head { display: flex; justify-content: space-between; gap: 12px; font-family: var(--mono); font-size: .78rem; color: var(--ink-3); border-bottom: 1.5px solid var(--ink); padding-bottom: 8px; margin-bottom: 32px; scroll-margin-top: 16px; }
h2 { text-wrap: balance; }

/* 三種使用方式 */
.open { margin-bottom: 64px; }
.open h2 { font-size: 1.5rem; margin: 0 0 18px; }
.ways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.way { position: relative; padding: 22px 22px 18px; background: var(--paper); border: 1.5px solid var(--ink); }
.way:nth-child(2) { transform: rotate(.6deg); } .way:nth-child(3) { transform: rotate(-.5deg); }
.way-ic { display: block; width: 64px; height: 64px; color: var(--ink); }
.way-ic svg { width: 100%; height: 100%; }
.way-label { position: absolute; top: 18px; right: 18px; font-family: var(--hand); color: var(--ink-2); font-size: 1rem; }
.way h3 { margin: 10px 0 6px; font-size: 1.25rem; display: flex; gap: 10px; align-items: baseline; }
.way h3 b { font-family: var(--mono); font-weight: 400; font-size: .8rem; color: var(--ink-3); }
.way p { margin: 0; color: var(--ink-2); font-size: .98rem; }
.way a { color: var(--ink); font-weight: 700; text-decoration-color: var(--ribbon); text-decoration-thickness: 2px; text-underline-offset: 4px; }

/* 目錄＋右側索引貼 */
.toc-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 40px; padding-bottom: 56px; }
.list h2 { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.item { display: grid; grid-template-columns: 8.5em minmax(0, 1fr); gap: 4px 22px; padding-block: 20px; border-bottom: 1px solid var(--rule); text-decoration: none; align-items: start; }
.item .date { font-family: var(--mono); font-size: .8rem; color: var(--ink-3); padding-top: 6px; line-height: 1.6; grid-row: span 2; }
.item h3 { font-size: clamp(1.2rem, 2.2vw, 1.45rem); font-weight: 900; line-height: 1.45; margin: 0; text-wrap: balance; display: inline; background: linear-gradient(transparent 62%, var(--hl) 62%, var(--hl) 92%, transparent 92%) no-repeat; background-size: 0 100%; transition: background-size .35s ease-out; }
.item:hover h3 { background-size: 100% 100%; }
.item p { margin: 8px 0 0; color: var(--ink-2); font-size: .96rem; line-height: 1.75; }
.item .aside { grid-column: 2; font-family: var(--hand); color: var(--ink-2); font-size: 1.05rem; line-height: 1.55; }
.item .aside:empty { display: none; }
.cols { display: grid; gap: 10px; align-content: start; }
.col { padding: 12px 14px 12px 18px; background: var(--cover); color: var(--on-cover); border-radius: 0 6px 6px 0; scroll-margin-top: 16px; }
.col:nth-child(2) { margin-left: 10px; } .col:nth-child(3) { margin-left: 20px; }
.col .tag { display: block; font-family: var(--mono); font-size: .72rem; color: var(--ribbon); letter-spacing: .15em; }
.col h3 { font-size: .98rem; line-height: 1.5; margin: 2px 0 4px; }
.col p { margin: 0; color: var(--emboss); font-size: .82rem; line-height: 1.6; }

/* 文章（一張內頁） */
.article { max-width: 780px; margin: 0 auto; padding-block: 8px 24px; }
.meta { font-family: var(--mono); font-size: .8rem; color: var(--ink-3); }
.meta a { text-decoration: none; } .meta a:hover { color: var(--ink); }
.article h1 { font-size: clamp(1.9rem, 5vw, 2.7rem); font-weight: 900; line-height: 1.3; margin: 12px 0 10px; text-wrap: balance; }
.subtitle { font-size: 1.12rem; color: var(--ink-2); margin: 0 0 18px; }
.draft-note { background: var(--todo); padding: 6px 14px; font-size: .9rem; margin-bottom: 16px; display: inline-block; }
.ledger { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; font-family: var(--mono); font-size: .8rem; color: var(--ink-2); padding: 12px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin-bottom: 26px; }
.ledger a { color: var(--ink); }
.keep3 { margin: 0 0 26px; padding: 40px 22px 10px 2.4em; list-style: none; display: grid; gap: 8px; border: 2px solid var(--ink); background: var(--page); position: relative; }
.keep3::before { content: "3 分鐘看重點"; position: absolute; top: 12px; left: 22px; font-weight: 700; font-size: 1rem; box-shadow: inset 0 -.45em 0 var(--hl); }
.keep3 li { position: relative; }
.keep3 li::before { content: "✓"; position: absolute; left: -1.3em; font-weight: 900; }
.keep3 strong { background: linear-gradient(transparent 55%, var(--hl) 55%); }
.toc { margin: 0 0 28px; font-size: .92rem; }
.toc span { font-family: var(--mono); font-size: .78rem; color: var(--ink-3); }
.toc ol { margin: 4px 0 0; padding-left: 1.4em; columns: 2; column-gap: 28px; }
.toc a { text-decoration: none; } .toc a:hover { box-shadow: inset 0 -.45em 0 var(--hl); }

.prose h2 { font-size: 1.5rem; font-weight: 900; line-height: 1.45; margin: 52px 0 12px; scroll-margin-top: 24px; }
.prose h3 { font-size: 1.12rem; font-weight: 900; margin: 32px 0 8px; }
.prose p { margin: 0 0 1.2em; color: #2a2b2e; }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.2em; }
.prose li { margin: 6px 0; }
.prose strong { background: linear-gradient(transparent 60%, var(--hl) 60%); font-weight: 700; }
.prose blockquote { margin: 1.5em 0; padding-left: 16px; border-left: 2px solid var(--ribbon); font-family: var(--hand); color: var(--ink-2); font-size: 1.12rem; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }
.prose code { background: var(--white); border: 1px solid var(--rule); padding: 1px 6px; font-family: var(--mono); font-size: .85em; }
.prose figure { margin: 30px 0; }
.prose figure img, .prose .video video { border: 6px solid var(--white); box-shadow: 0 2px 0 var(--dot), 0 12px 24px rgba(0,0,0,.12); width: 100%; }
.prose figcaption { font-family: var(--hand); color: var(--ink-2); font-size: 1rem; margin-top: 8px; }
.prose .embed iframe { width: 100%; height: 1800px; border: 6px solid var(--white); box-shadow: 0 12px 24px rgba(0,0,0,.10); background: var(--white); display: block; }
.prose .video video { display: block; background: #000; }
@media (max-width: 720px) { .prose .embed iframe { height: 2000px; } }
.shot-todo > div { aspect-ratio: 16/9; max-width: 100%; display: grid; place-items: center; border: 2px dashed var(--ink-3); color: var(--ink-3); font-family: var(--hand); }
mark.todo { background: var(--todo); color: inherit; padding: 0 4px; }
.table { overflow-x: auto; margin: 0 0 1.4em; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; background: var(--page); }
th, td { border: 1px solid var(--ink); padding: 10px 12px; text-align: left; vertical-align: top; line-height: 1.65; }
th { background: var(--cover); color: var(--on-cover); font-weight: 500; }
td strong { background: none; }
.box { margin: 28px 0; padding: 18px 22px; border: 1.5px solid var(--ink); background: var(--page); }
.box > :last-child { margin-bottom: 0; }
.box-title { font-weight: 900; margin-bottom: 6px; }
.box-try .box-title { display: inline-block; box-shadow: inset 0 -.45em 0 var(--hl); }
.box-memo { border: 0; border-left: 2px solid var(--ribbon); background: transparent; padding: 4px 0 4px 16px; font-family: var(--hand); color: var(--ink-2); font-size: 1.1rem; }

/* 提示詞：像貼上去的卡片 */
.prompt { margin: 26px 0; border: 1.5px solid var(--ink); background: var(--white); box-shadow: 4px 4px 0 var(--ink); }
.prompt-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 14px; border-bottom: 1.5px solid var(--ink); font-family: var(--mono); font-size: .8rem; }
.prompt pre, pre.code { margin: 0; padding: 16px; white-space: pre-wrap; word-break: break-word; font-family: var(--sans); font-size: .95rem; line-height: 1.75; }
pre.code { border: 1.5px solid var(--ink); background: var(--white); font-family: var(--mono); font-size: .85rem; margin-bottom: 1.2em; }
button.copy, .copy-file, .copy-link { font: inherit; font-family: var(--mono); font-size: .8rem; cursor: pointer; padding: 3px 12px; border: 1.5px solid var(--ink); background: var(--cover); color: var(--on-cover); white-space: nowrap; }
button.copy:hover, .copy-file:hover, .copy-link:hover { background: var(--ribbon); color: var(--ink); }

/* 拿去用、修改紀錄 */
.take, .log { margin-top: 44px; padding-top: 22px; border-top: 1.5px solid var(--ink); }
.take h2, .log h2 { font-size: 1.15rem; margin: 0 0 8px; }
.take > p, .log p { color: var(--ink-2); font-size: .95rem; margin: 0 0 14px; }
.res { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 14px 16px; background: var(--page); border: 1.5px solid var(--ink); margin-bottom: 10px; }
.res > div:first-child { min-width: 0; }
.res strong { display: block; }
.res span { color: var(--ink-2); font-size: .9rem; line-height: 1.6; }
.res-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; font-family: var(--mono); font-size: .8rem; }
.log { background: #efe9d6; padding: 16px 20px; border-top: 0; transform: rotate(-.4deg); }
.log ol { margin: 0 0 10px; padding-left: 1.4em; font-family: var(--hand); font-size: 1rem; color: var(--ink-2); }

.share { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; margin: 36px 0 24px; padding-top: 20px; border-top: 1px solid var(--rule); font-size: .92rem; }
.share span { font-family: var(--mono); font-size: .8rem; color: var(--ink-3); }
.author { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 18px; padding: 18px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.avatar { border-radius: 50%; overflow: hidden; background: var(--cover); display: grid; place-items: center; aspect-ratio: 1; max-width: 100%; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.initials { font-weight: 900; font-size: 1.6rem; color: var(--ribbon); }
.author p { margin: 4px 0 6px; color: var(--ink-2); font-size: .93rem; line-height: 1.7; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.pager a { padding: 12px 14px; border: 1.5px solid var(--ink); text-decoration: none; font-size: .95rem; line-height: 1.5; background: var(--page); }
.pager small { display: block; font-family: var(--mono); color: var(--ink-3); }
.pager .next { text-align: right; grid-column: 2; }
.about-head { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 24px; align-items: center; margin-bottom: 24px; }
.avatar.big .initials { font-size: 2.6rem; }
.about-head h1 { margin-top: 0; }

/* 訂閱 */
.sub { padding-block: 40px 48px; border-top: 1.5px solid var(--ink); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
.sub h2 { font-size: 1.5rem; font-weight: 900; margin: 0 0 6px; }
.sub h2 b { box-shadow: inset 0 -.45em 0 var(--hl); }
.sub p { margin: 0; color: var(--ink-2); max-width: 36em; }
.sub-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 10px 20px; border: 1.5px solid var(--ink); background: var(--cover); color: var(--on-cover); text-decoration: none; font-weight: 700; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-off { opacity: .55; cursor: not-allowed; }

.foot { padding-block: 24px 64px; border-top: 1.5px solid var(--ink); color: var(--ink-2); font-size: .85rem; }
.foot p { margin: 4px 0; max-width: 60em; }
.foot-links { display: flex; flex-wrap: wrap; gap: 16px; font-family: var(--mono); font-size: .8rem; }


@media (min-width: 821px) and (max-width: 1180px) { .cover-media { width: 56%; } .cover-copy > div { max-width: 44vw; } }
@media (max-width: 820px) {
  .cover-stage { display: block; min-height: 0; }
  .cover-media { position: relative; width: 100%; aspect-ratio: 4 / 3; --fade: linear-gradient(180deg, #000 60%, transparent 100%); }
  .cover-bg { object-position: 40% 50%; }
  .pen { width: 96px; height: 96px; }
  .cover-copy { margin-top: -84px; padding-block: 0 44px; }
  .ribbon { height: 70px; left: 34%; }
  .ways { grid-template-columns: minmax(0, 1fr); }
  .way:nth-child(n) { transform: none; }
  .toc-wrap { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .cols { grid-template-columns: repeat(3, minmax(0, 1fr)); order: -1; }
  .col, .col:nth-child(n) { margin: 0; border-radius: 6px 6px 0 0; padding: 10px; }
  .col p { display: none; } .col h3 { font-size: .85rem; }
  .item { grid-template-columns: minmax(0, 1fr); }
  .item .date { grid-row: auto; padding-top: 0; }
  .item .aside { grid-column: 1; }
  .toc ol { columns: 1; }
  .res { flex-direction: column; align-items: flex-start; }
  .sub { grid-template-columns: 1fr; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; text-align: left; }
  .top nav { gap: 14px; font-size: .86rem; }
  .about-head { grid-template-columns: 80px minmax(0, 1fr); gap: 16px; }
}
@media (max-width: 420px) { .mark small { display: none; } .top nav { gap: 10px; } }
@media (prefers-reduced-motion: reduce) { .item h3 { transition: none; } }

/* 圖片格子（:::grid）：地標一覽、會動的照片 */
.gallery { margin: 30px 0; }
.gallery > .box-title { font-family: var(--hand); font-size: 1.15rem; color: var(--ink-2); margin-bottom: 10px; }
.gallery-in { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.gallery-in figure { margin: 0; }
.gallery-in figure img, .gallery-in .video video { border-width: 4px; aspect-ratio: 4 / 3; object-fit: cover; }
.gallery-in figcaption { font-size: .92rem; margin-top: 4px; }
.gallery.two .gallery-in { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.gallery-in .video video { aspect-ratio: 16 / 9; }
.prose .loop video { background: var(--cover); }
@media (max-width: 820px) { .gallery-in { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; } }
@media (prefers-reduced-motion: reduce) { .prose .loop video { animation: none; } }

/* 訂閱表單 */
.sub-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.sub-form input[type=email] { font: inherit; font-size: 1rem; padding: 9px 14px; border: 1.5px solid var(--ink); background: var(--page); color: var(--ink); min-width: 0; flex: 1 1 220px; }
.sub-form .btn { cursor: pointer; font: inherit; font-weight: 700; }
.sub-form .btn:disabled { opacity: .6; }
.sub-msg { flex-basis: 100%; margin: 4px 0 0; font-family: var(--hand); color: var(--ink-2); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }