/* ==========================================================================
   紙上行旅 Pagebound — 主樣式
   編排語彙取自舊式書刊：報頭(masthead) · 路標(wayfinder) · 封面(cover)
   · 通訊(dispatch) · 長文(longform) · 版心折頁(folio) · 版權頁(colophon)
   ========================================================================== */

/* ---------- 基礎重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; }
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* ---------- 色票與尺度 ---------- */
:root {
  --paper:      #FAF6EC;
  --paper-2:    #F2E9D7;
  --card:       #FFFDF6;
  --ink:        #241E17;
  --ink-2:      #4B4237;
  --muted:      #786C5C;
  --line:       #E2D8C4;
  --line-2:     #C9BCA2;
  --accent:     #8A2B1F;   /* 朱赭 oxblood */
  --accent-2:   #4A5A40;   /* 書庫綠 library green */
  --gold:       #A6814C;

  --serif-cjk:  "Noto Serif TC", "Songti TC", "Source Han Serif TC", "PingFang TC", serif;
  --serif-lat:  "Spectral", Georgia, "Times New Roman", serif;
  --display:    "Fraunces", "Noto Serif TC", Georgia, serif;
  --sans:       ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;

  --measure: 39rem;
  --gutter: clamp(1.1rem, 4vw, 2.75rem);
  --rhythm: 1.85;

  --shadow-soft: 0 1px 0 var(--line), 0 18px 40px -28px rgba(40,30,15,.4);
}

:root[data-variant="hans"] {
  --serif-cjk: "Noto Serif SC", "Songti SC", "Source Han Serif SC", "PingFang SC", serif;
  --display: "Fraunces", "Noto Serif SC", Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #15120D;
    --paper-2: #1E1A13;
    --card:    #1C1812;
    --ink:     #ECE3D1;
    --ink-2:   #C7BBA5;
    --muted:   #9C9079;
    --line:    #332C20;
    --line-2:  #4A4030;
    --accent:  #D17F66;
    --accent-2:#9DB088;
    --gold:    #C9A468;
    --shadow-soft: 0 1px 0 var(--line), 0 22px 46px -30px rgba(0,0,0,.7);
  }
}

/* ---------- 文字基底 ---------- */
body {
  background-color: var(--paper);
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='120'%20height='120'%3E%3Cfilter%20id='n'%3E%3CfeTurbulence%20type='fractalNoise'%20baseFrequency='0.9'%20numOctaves='2'%20stitchTiles='stitch'/%3E%3CfeColorMatrix%20type='saturate'%20values='0'/%3E%3C/filter%3E%3Crect%20width='120'%20height='120'%20filter='url(%23n)'%20opacity='0.04'/%3E%3C/svg%3E");
  color: var(--ink);
  font-family: var(--serif-cjk);
  font-size: 1.06rem;
  line-height: var(--rhythm);
  font-feature-settings: "kern" 1, "palt" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
:lang(en), .lat { font-family: var(--serif-lat); }

p { margin: 0 0 1.25em; }
strong { font-weight: 600; }
em { font-style: italic; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

a.link, .longform a {
  color: var(--accent);
  text-decoration: none;
  background-image: linear-gradient(var(--line-2), var(--line-2));
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 1.18em;
  transition: background-size .2s ease, color .2s ease;
}
.longform a:hover { color: var(--ink); background-image: linear-gradient(var(--accent), var(--accent)); }

.kicker {
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
}
:root[data-variant="hans"] .kicker, .kicker.cjk { letter-spacing: .2em; }

/* ---------- 版面骨架 ---------- */
.wrap { width: 100%; max-width: 72rem; margin-inline: auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: 46rem; }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper);
  padding: .6rem 1rem; z-index: 99; font-family: var(--sans); font-size: .85rem;
}
.skip-link:focus { left: .6rem; top: .6rem; }

/* ---------- 報頭 masthead ---------- */
.masthead {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(135%) blur(11px);
  -webkit-backdrop-filter: saturate(135%) blur(11px);
  border-top: 3px solid var(--accent);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top);
}
.masthead__inner {
  max-width: 76rem; margin-inline: auto; padding: .72rem var(--gutter);
  display: flex; align-items: center; gap: 1rem;
}
.wordmark {
  display: flex; flex-direction: column; line-height: 1; text-decoration: none; margin-right: auto;
  padding-left: 2.2rem;
  background: url("/assets/img/brand-mark.svg?v=20260615") left center / 1.6rem 1.6rem no-repeat;
}
.wordmark__zh { font-family: var(--display); font-weight: 500; font-size: 1.45rem; letter-spacing: .04em; color: var(--ink); }
.wordmark__en { font-family: var(--sans); font-size: .6rem; letter-spacing: .42em; text-transform: uppercase; color: var(--muted); margin-top: .32rem; padding-left: .12em; }

.wayfinder { display: flex; gap: 1.35rem; align-items: center; }
.wayfinder a {
  font-family: var(--serif-cjk); font-size: .98rem; color: var(--ink-2); text-decoration: none;
  padding: .3rem 0; position: relative;
}
.wayfinder a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: .05rem; height: 1px;
  background: var(--accent); transition: right .25s ease;
}
.wayfinder a:hover { color: var(--ink); }
.wayfinder a:hover::after, .wayfinder a[aria-current="page"]::after { right: 0; }

.lang-switch { display: flex; align-items: center; gap: .15rem; font-family: var(--sans); font-size: .8rem; margin-left: .4rem; }
.lang-switch a { text-decoration: none; color: var(--muted); padding: .35rem .45rem; border-radius: 3px; min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.lang-switch a[aria-current="page"] { color: var(--ink); font-weight: 600; box-shadow: inset 0 -2px 0 var(--accent); }
.lang-switch a:hover { color: var(--ink); }
.lang-soon { color: var(--line-2); padding: .35rem .45rem; cursor: not-allowed; }
.lang-switch .sep { color: var(--line-2); }

.nav-toggle { display: none; border: 1px solid var(--line-2); background: transparent; border-radius: 4px; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 19px; height: 1.5px; background: var(--ink); position: relative; transition: .2s; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; order: 3; }
  .lang-switch { order: 2; margin-left: auto; }
  .wordmark { margin-right: 0; }
  .wayfinder {
    order: 4; flex-basis: 100%; flex-direction: column; align-items: flex-start; gap: 0;
    max-height: 0; overflow: hidden; transition: max-height .28s ease;
  }
  .wayfinder.is-open { max-height: 28rem; padding-top: .4rem; }
  .wayfinder a { width: 100%; padding: .75rem 0; border-top: 1px solid var(--line); font-size: 1.05rem; }
}

/* ============ 桌面左側「書脊」欄 rail（≥1000px） ============ */
@media (min-width: 1000px) {
  body:not(.bare) { padding-left: 13.5rem; }
  .masthead {
    position: fixed; inset: 0 auto 0 0; width: 13.5rem; z-index: 50;
    border-top: 0; border-bottom: 0; border-right: 1px solid var(--line);
    background: var(--paper); backdrop-filter: none; -webkit-backdrop-filter: none;
  }
  .masthead::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); }
  .masthead__inner { flex-direction: column; align-items: stretch; height: 100%; max-width: none; margin: 0; padding: 1.8rem 1.35rem 1.5rem; gap: 0; }
  .wordmark { margin: 0 0 2.8rem; }
  .wordmark__zh { font-size: 1.5rem; }
  .wayfinder { flex-direction: column; align-items: stretch; gap: .12rem; width: 100%; max-height: none; overflow: visible; }
  .wayfinder a { width: 100%; padding: .56rem 0 .56rem .85rem; font-size: 1.02rem; border-left: 2px solid var(--line); }
  .wayfinder a::after { display: none; }
  .wayfinder a:hover, .wayfinder a[aria-current="page"] { color: var(--accent); border-left-color: var(--accent); }
  .lang-switch { margin: auto 0 0; align-self: flex-start; padding-top: 1rem; }
  .nav-toggle { display: none; }
}

/* ============ 開卷 opening（首頁主視覺，字為主、圖為輔） ============ */
.opening {
  position: relative; overflow: hidden;
  min-height: min(90vh, 800px); display: flex; align-items: center;
  padding: clamp(3rem,8vw,6rem) var(--gutter); border-bottom: 1px solid var(--line-2);
}
.opening__art {
  position: absolute; right: -1.5%; top: 50%; transform: translateY(-50%);
  width: min(53%, 600px); opacity: .9; pointer-events: none; z-index: 0;
  -webkit-mask-image: linear-gradient(95deg, transparent 16%, #000 52%);
          mask-image: linear-gradient(95deg, transparent 16%, #000 52%);
}
.opening__inner { position: relative; z-index: 1; max-width: 52rem; width: 100%; }
.opening__issue {
  display: flex; align-items: center; gap: .7rem; margin: 0 0 1.4rem;
  font-family: var(--sans); font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--muted);
}
.opening__issue .dot { color: var(--accent); }
.opening__title {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(2.5rem, 7vw, 5.8rem); line-height: 1.04; letter-spacing: -.02em; margin: 0 0 1.5rem;
}
.opening__title em { font-style: italic; color: var(--accent); }
.opening__deck { font-size: clamp(1.05rem,1.6vw,1.32rem); color: var(--ink-2); max-width: 33rem; line-height: 1.78; margin: 0; }
.opening__cue {
  display: inline-flex; align-items: center; gap: .5rem; margin-top: 2.4rem;
  font-family: var(--sans); font-size: .76rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); text-decoration: none; min-height: 44px;
}
.opening__cue span { display: inline-block; transition: transform .3s ease; }
.opening__cue:hover span { transform: translateY(3px); }
@media (max-width: 760px) {
  .opening { min-height: 0; padding-top: clamp(2.2rem,9vw,3rem); padding-bottom: clamp(2.2rem,9vw,3rem); }
  .opening__art { width: 86%; opacity: .1; right: -10%; }
}

/* ============ 編輯室的話 manifesto ============ */
.manifesto {
  display: grid; grid-template-columns: 11rem 1fr; gap: clamp(1rem,3vw,2.6rem);
  max-width: 62rem; margin-inline: auto; padding: clamp(3rem,7vw,5.5rem) var(--gutter);
  border-bottom: 1px solid var(--line);
}
.manifesto__label { font-family: var(--sans); font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--accent); padding-top: .5rem; }
.manifesto__lead { font-family: var(--display); font-weight: 500; font-size: clamp(1.45rem,3vw,2.15rem); line-height: 1.3; margin: 0 0 1.1rem; letter-spacing: -.01em; }
.manifesto__body p { max-width: 40rem; color: var(--ink-2); }
.manifesto__more { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--sans); font-size: .85rem; color: var(--accent); text-decoration: none; }
.manifesto__more:hover { color: var(--ink); }
@media (max-width: 720px) { .manifesto { grid-template-columns: 1fr; gap: .8rem; } }

/* ============ 本期目錄 index（首頁核心：刊物式目錄） ============ */
.index { max-width: 62rem; margin-inline: auto; padding: clamp(3rem,6vw,5rem) var(--gutter) clamp(3rem,8vw,6rem); }
.index__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; border-bottom: 2px solid var(--ink); padding-bottom: .8rem; }
.index__head h2 { font-family: var(--display); font-weight: 500; font-size: clamp(1.7rem,3.2vw,2.4rem); margin: 0; letter-spacing: -.015em; }
.index__count { font-family: var(--sans); font-size: .76rem; letter-spacing: .14em; color: var(--muted); white-space: nowrap; }
.index__group { display: flex; align-items: center; gap: 1rem; font-family: var(--sans); font-size: .7rem; letter-spacing: .26em; text-transform: uppercase; color: var(--accent-2); margin: 2.8rem 0 .3rem; }
.index__group::before { content: ""; width: .42rem; height: .42rem; background: var(--accent); transform: rotate(45deg); flex: 0 0 auto; }
.index__group::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.entry {
  display: grid; grid-template-columns: 3.4rem 1fr 7rem; align-items: start; gap: clamp(1rem,2.5vw,1.8rem);
  padding: 1.6rem .3rem; border-bottom: 1px solid var(--line);
  text-decoration: none; color: var(--ink); transition: background .25s ease, padding-left .25s ease;
}
.entry:hover { background: color-mix(in srgb, var(--paper-2) 55%, transparent); padding-left: .9rem; }
.entry__folio { font-family: var(--display); font-size: 1.9rem; line-height: 1; color: var(--line-2); transition: color .2s ease; padding-top: .15rem; }
.entry:hover .entry__folio { color: var(--accent); }
.entry__kicker { display: block; font-family: var(--sans); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent-2); margin-bottom: .4rem; }
.entry__title { display: block; font-family: var(--display); font-weight: 500; font-size: clamp(1.2rem,2.1vw,1.65rem); line-height: 1.26; letter-spacing: -.01em; transition: color .2s ease; }
.entry:hover .entry__title { color: var(--accent); }
.entry__excerpt { display: block; color: var(--ink-2); font-size: .96rem; line-height: 1.65; margin-top: .5rem; max-width: 40rem; }
.entry__meta { display: block; font-family: var(--sans); font-size: .74rem; letter-spacing: .04em; color: var(--muted); margin-top: .6rem; }
.entry__thumb { width: 7rem; height: 5rem; border: 1px solid var(--line); overflow: hidden; background: var(--paper-2); align-self: center; }
.entry__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.entry:hover .entry__thumb img { transform: scale(1.07); }
@media (max-width: 680px) {
  .entry { grid-template-columns: 2.2rem 1fr; gap: .9rem; padding: 1.3rem .2rem; }
  .entry__folio { font-size: 1.4rem; }
  .entry__thumb { display: none; }
}

/* ============ 捲動入場 reveal（僅在 JS 啟用時隱藏，SEO 安全） ============ */
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- 封面 cover (hero) ---------- */
.cover { position: relative; border-bottom: 1px solid var(--line-2); overflow: hidden; }
.cover__grid {
  max-width: 76rem; margin-inline: auto;
  padding: clamp(1.8rem,4vw,3.2rem) var(--gutter) clamp(2.4rem,5vw,4rem);
  display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(2rem,5vw,5rem);
  align-items: center; min-height: min(82vh, 720px);
}
.cover__issue {
  display: flex; align-items: center; gap: .7rem; margin: 0 0 1.5rem;
  font-family: var(--sans); font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--muted);
}
.cover__issue .dot { color: var(--accent); }
.cover__issue::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-2), transparent); }
.cover__title {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 5.4rem); line-height: 1.03; letter-spacing: -.018em;
  margin: 0 0 1.3rem; overflow-wrap: break-word;
}
.cover__title em { font-style: italic; color: var(--accent); }
.cover__deck {
  font-size: clamp(1.04rem, 1.5vw, 1.22rem); color: var(--ink-2); max-width: 32rem;
  line-height: 1.78; margin: 0 0 1.9rem;
}
.cover__lines { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); max-width: 34rem; }
.cover__lines li { border-bottom: 1px solid var(--line); }
.cover__lines a { display: flex; align-items: baseline; gap: 1rem; padding: .85rem .1rem; text-decoration: none; color: var(--ink); transition: color .2s ease, padding-left .2s ease; }
.cover__lines a:hover { color: var(--accent); padding-left: .55rem; }
.cover__lines .n { flex: 0 0 auto; font-family: var(--sans); font-size: .7rem; letter-spacing: .14em; color: var(--accent-2); padding-top: .2rem; }
.cover__lines .t { font-family: var(--display); font-weight: 500; font-size: 1.05rem; line-height: 1.35; }
.cover__lines a::after { content: "→"; margin-left: auto; color: var(--line-2); transition: transform .2s ease, color .2s ease; }
.cover__lines a:hover::after { color: var(--accent); transform: translateX(3px); }

.cover__plate { display: flex; flex-direction: column; }
.cover__plate-inner { position: relative; background: var(--paper-2); border: 1px solid var(--line-2); padding: clamp(1rem,2.4vw,1.9rem); box-shadow: var(--shadow-soft); }
.cover__plate-inner::before { content: ""; position: absolute; inset: 9px; border: 1px solid var(--line); pointer-events: none; z-index: 1; }
.cover__plate-inner img { display: block; width: 100%; height: auto; }
.cover__caption { font-family: var(--serif-lat); font-style: italic; font-size: .82rem; color: var(--muted); margin: .85rem .2rem 0; text-align: right; letter-spacing: .01em; }

@media (max-width: 880px) {
  .cover__grid { grid-template-columns: 1fr; gap: 2rem; min-height: 0; padding-top: 1.8rem; }
  .cover__plate { order: -1; }
  .cover__caption { text-align: left; }
}

/* ---------- 通訊網格 shelf / dispatch 卡 ---------- */
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin: 0 0 1.8rem; padding-bottom: .8rem; border-bottom: 2px solid var(--ink); }
.section-head__eyebrow { font-family: var(--sans); font-size: .7rem; letter-spacing: .26em; text-transform: uppercase; color: var(--accent); margin: 0 0 .45rem; }
.section-head h2 { font-family: var(--display); font-weight: 500; font-size: clamp(1.6rem,3.2vw,2.3rem); margin: 0; letter-spacing: -.015em; line-height: 1; }
.section-head .more { font-family: var(--sans); font-size: .82rem; color: var(--accent); text-decoration: none; white-space: nowrap; }
.section-head .more:hover { color: var(--ink); }

.block { padding: clamp(2.6rem,6vw,4.5rem) 0; }
.block + .block { border-top: 1px solid var(--line); }

.shelf { display: grid; gap: clamp(1.4rem, 3vw, 2.2rem); grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.shelf--feature { grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr)); }

.dispatch { display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: transform .25s ease; }
.dispatch:hover { transform: translateY(-4px); }
.dispatch__frame {
  position: relative; aspect-ratio: 5/3.4; overflow: hidden; border: 1px solid var(--line);
  background: var(--paper-2); margin-bottom: 1rem; transition: border-color .25s ease, box-shadow .25s ease;
}
.dispatch:hover .dispatch__frame { border-color: var(--line-2); box-shadow: 0 16px 34px -24px rgba(40,30,15,.5); }
.dispatch__frame svg, .dispatch__frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.dispatch:hover .dispatch__frame img { transform: scale(1.04); }
.dispatch__num { position: absolute; left: 0; top: 0; z-index: 2; font-family: var(--sans); font-size: .7rem; letter-spacing: .16em; background: var(--ink); color: var(--paper); padding: .35rem .6rem; }
.dispatch__kicker { font-family: var(--sans); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent-2); margin-bottom: .45rem; }
.dispatch__title { font-family: var(--display); font-weight: 500; font-size: 1.3rem; line-height: 1.28; margin: 0 0 .5rem; transition: color .2s; }
.dispatch:hover .dispatch__title { color: var(--accent); }
.dispatch__excerpt { color: var(--ink-2); font-size: .98rem; line-height: 1.7; margin: 0 0 .7rem; }
.dispatch__meta { margin-top: auto; font-family: var(--sans); font-size: .76rem; color: var(--muted); display: flex; gap: .8rem; flex-wrap: wrap; }
.dispatch__meta .wc::before { content: "·"; margin-right: .8rem; color: var(--line-2); }

.dispatch--wide { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,1fr); gap: clamp(1.4rem,4vw,3rem); align-items: center; }
.dispatch--wide .dispatch__frame { aspect-ratio: 16/10; margin: 0; }
.dispatch--wide .dispatch__title { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.dispatch--wide .dispatch__excerpt { font-size: 1.05rem; }
@media (max-width: 680px){ .dispatch--wide { grid-template-columns: 1fr; gap: 1.1rem; } }

/* ---------- 長文 longform ---------- */
.article { padding: clamp(1.8rem,4vw,3rem) 0 1rem; }
.article__grid { display: grid; grid-template-columns: minmax(0,1fr); gap: 2.2rem; max-width: 72rem; margin-inline: auto; padding-inline: var(--gutter); }
@media (min-width: 1040px) {
  .article__grid { grid-template-columns: 15rem minmax(0, 40rem); justify-content: center; gap: clamp(2rem,5vw,4.5rem); align-items: start; }
}

.breadcrumb { font-family: var(--sans); font-size: .76rem; color: var(--muted); letter-spacing: .04em; margin-bottom: 1.4rem; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--line-2); margin: 0 .45rem; }

.article__head { max-width: 40rem; margin: 0 auto 2.2rem; }
.article__kicker { font-family: var(--sans); font-size: .74rem; letter-spacing: .24em; text-transform: uppercase; color: var(--accent-2); }
.article__title { font-family: var(--display); font-weight: 400; font-size: clamp(2rem,4.6vw,3.3rem); line-height: 1.1; letter-spacing: -.01em; margin: .8rem 0 .6rem; }
.article__standfirst { font-size: 1.18rem; color: var(--ink-2); line-height: 1.7; }
.article__byline { display: flex; flex-wrap: wrap; gap: .5rem 1.1rem; align-items: center; margin-top: 1.5rem; padding-top: 1.1rem; border-top: 1px solid var(--line); font-family: var(--sans); font-size: .8rem; color: var(--muted); }
.article__byline b { color: var(--ink); font-weight: 600; }
.article__byline time { color: var(--ink-2); }

.longform { font-size: 1.075rem; }
.longform > * { max-width: var(--measure); }
.longform h2, .longform h3 { max-width: var(--measure); }
.longform h2 {
  font-family: var(--display); font-weight: 500; font-size: clamp(1.5rem,3vw,2rem); line-height: 1.2;
  margin: 2.8rem 0 1rem; padding-top: 1.4rem; border-top: 1px solid var(--line); letter-spacing: -.01em;
  counter-increment: sec;
}
.longform h2::before {
  content: counter(sec, decimal-leading-zero); display: block; font-family: var(--sans);
  font-size: .72rem; letter-spacing: .2em; color: var(--accent); margin-bottom: .5rem; font-weight: 600;
}
.longform { counter-reset: sec; }
.longform h3 { font-family: var(--display); font-weight: 600; font-size: 1.22rem; margin: 1.9rem 0 .7rem; }
.longform__lead::first-letter {
  font-family: var(--display); font-weight: 500; float: left; font-size: 3.6em; line-height: .82;
  padding: .06em .12em 0 0; color: var(--accent);
}
.longform ul, .longform ol { margin: 0 0 1.4em; padding-left: 1.3em; }
.longform li { margin-bottom: .55em; padding-left: .2em; }
.longform ul { list-style: none; padding-left: 0; }
.longform ul > li { position: relative; padding-left: 1.4em; }
.longform ul > li::before { content: "—"; position: absolute; left: 0; color: var(--gold); }
.longform blockquote {
  margin: 2rem 0; padding: .2rem 0 .2rem 1.5rem; border-left: 3px solid var(--accent);
  font-family: var(--display); font-style: italic; font-size: 1.3rem; line-height: 1.5; color: var(--ink);
}
.longform blockquote cite { display: block; font-style: normal; font-family: var(--sans); font-size: .8rem; letter-spacing: .08em; color: var(--muted); margin-top: .7rem; }
.longform blockquote.pullquote {
  margin: 2.9rem 0; padding: 0; border: 0;
  font-family: var(--display); font-style: italic; font-weight: 500;
  font-size: clamp(1.4rem, 2.6vw, 1.95rem); line-height: 1.42; color: var(--ink);
}
.longform blockquote.pullquote::before { content: ""; display: block; width: 2.6rem; height: 2px; background: var(--accent); margin-bottom: 1.15rem; }
.longform blockquote.pullquote p { margin: 0; }

/* 表格 */
.longform .table-scroll { overflow-x: auto; margin: 1.6rem 0; max-width: var(--measure); -webkit-overflow-scrolling: touch; }
.longform table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.longform th, .longform td { text-align: left; padding: .7rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.longform thead th { font-family: var(--sans); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border-bottom: 2px solid var(--ink); }
.longform tbody tr:nth-child(even) { background: color-mix(in srgb, var(--paper-2) 55%, transparent); }

/* 重點摘要 takeaways */
.takeaways { background: var(--paper-2); border: 1px solid var(--line); border-left: 3px solid var(--accent-2); padding: 1.3rem 1.5rem; margin: 0 0 2rem; max-width: var(--measure); }
.takeaways h2 { all: unset; }
.takeaways .h { font-family: var(--sans); font-size: .74rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent-2); font-weight: 600; }
.takeaways ul { margin: .8rem 0 0; padding: 0; list-style: none; }
.takeaways li { position: relative; padding-left: 1.5em; margin-bottom: .55em; }
.takeaways li::before { content: "✦"; position: absolute; left: 0; color: var(--gold); font-size: .85em; top: .15em; }

/* 資訊框 factbox */
.factbox { border: 1px solid var(--line-2); background: var(--card); padding: 1.3rem 1.5rem; margin: 1.8rem 0; max-width: var(--measure); box-shadow: var(--shadow-soft); }
.factbox h3 { all: unset; display: flex; align-items: baseline; gap: .6rem; font-family: var(--sans); font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink); font-weight: 700; }
.factbox dl { display: grid; grid-template-columns: auto 1fr; gap: .5rem 1.1rem; margin: 1rem 0 0; }
.factbox dt { font-family: var(--sans); font-size: .82rem; color: var(--muted); white-space: nowrap; }
.factbox dd { margin: 0; font-size: .98rem; }
.verify-badge { display: inline-flex; align-items: center; gap: .4rem; font-family: var(--sans); font-size: .68rem; letter-spacing: .06em; color: var(--accent-2); border: 1px solid var(--accent-2); border-radius: 999px; padding: .12rem .55rem; margin-left: auto; white-space: nowrap; }
.verify-badge::before { content: ""; width: .42rem; height: .42rem; border-radius: 50%; background: var(--accent-2); }

/* 避坑清單 pitfalls */
.pitfalls { border-top: 2px solid var(--accent); padding-top: 1rem; margin: 2rem 0; max-width: var(--measure); }
.pitfalls .h { font-family: var(--display); font-weight: 600; font-size: 1.15rem; margin-bottom: .8rem; }
.pitfalls ol { list-style: none; padding: 0; counter-reset: pit; }
.pitfalls li { position: relative; padding-left: 2.4rem; margin-bottom: .9rem; counter-increment: pit; }
.pitfalls li::before { content: counter(pit); position: absolute; left: 0; top: .05rem; width: 1.7rem; height: 1.7rem; border: 1px solid var(--accent); color: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--sans); font-size: .82rem; font-weight: 600; }

/* 搭配書單 readlist */
.readlist { background: var(--paper-2); border: 1px solid var(--line); padding: 1.4rem 1.5rem; margin: 2rem 0; max-width: var(--measure); }
.readlist .h { font-family: var(--sans); font-size: .74rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent-2); font-weight: 600; margin-bottom: 1rem; }
.readlist ul { list-style: none; padding: 0; margin: 0; }
.readlist li { display: grid; grid-template-columns: auto 1fr; gap: .9rem; padding: .7rem 0; border-top: 1px dotted var(--line-2); }
.readlist li:first-child { border-top: 0; }
.readlist .bk { font-family: var(--display); font-style: italic; color: var(--ink); }
.readlist .by { font-family: var(--sans); font-size: .78rem; color: var(--muted); }
.readlist .nx { font-size: .92rem; color: var(--ink-2); }

/* 邊註 marginal note */
.note { font-size: .92rem; color: var(--muted); border-left: 2px solid var(--line-2); padding-left: 1rem; margin: 1.6rem 0; max-width: var(--measure); font-style: italic; }

/* 資料來源 sources */
.sources { margin: 2.4rem 0 0; padding-top: 1.4rem; border-top: 1px solid var(--line); max-width: var(--measure); }
.sources .h { font-family: var(--sans); font-size: .74rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: .8rem; }
.sources ol { padding-left: 1.4em; font-size: .9rem; color: var(--ink-2); }
.sources li { margin-bottom: .45em; }
.sources a { color: var(--accent); text-decoration: none; }
.sources a:hover { text-decoration: underline; }

/* FAQ */
.faq { max-width: var(--measure); margin: 2.4rem 0; }
.faq h2 { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 1rem 2rem 1rem 0; position: relative; font-family: var(--display); font-weight: 600; font-size: 1.08rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .2rem; top: .85rem; font-family: var(--sans); font-size: 1.3rem; color: var(--accent); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 0 1.1rem; color: var(--ink-2); }
.faq details > div > *:last-child { margin-bottom: 0; }

/* 目錄 TOC */
.toc { position: sticky; top: 5rem; font-family: var(--sans); }
.toc__h { font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: .9rem; padding-bottom: .6rem; border-bottom: 1px solid var(--line); }
.toc ol { list-style: none; padding: 0; counter-reset: toc; }
.toc li { counter-increment: toc; margin-bottom: .1rem; }
.toc a { display: block; text-decoration: none; color: var(--ink-2); font-size: .86rem; line-height: 1.4; padding: .4rem 0 .4rem 1.9rem; position: relative; border-left: 2px solid var(--line); transition: color .15s, border-color .15s; }
.toc a::before { content: counter(toc, decimal-leading-zero); position: absolute; left: .5rem; color: var(--line-2); font-size: .72rem; top: .5rem; }
.toc a:hover { color: var(--accent); }
.toc a.is-current { color: var(--ink); border-left-color: var(--accent); }
.toc a.is-current::before { color: var(--accent); }
@media (max-width: 1039px) {
  .toc { position: static; margin: 1.8rem auto; max-width: 40rem; background: var(--paper-2); border: 1px solid var(--line); padding: 1.1rem 1.3rem; }
  .toc__list { columns: 2; column-gap: 1.4rem; }
  .toc a { padding-left: 1.7rem; }
}
@media (max-width: 520px) { .toc__list { columns: 1; } }

/* 文末關聯 + 上下篇 */
.related { max-width: var(--measure); margin: 3rem auto 0; }
.related .h { font-family: var(--sans); font-size: .74rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.1rem; padding-bottom: .6rem; border-bottom: 2px solid var(--ink); }
.related ul { list-style: none; padding: 0; }
.related li { padding: .9rem 0; border-bottom: 1px solid var(--line); }
.related a { text-decoration: none; color: var(--ink); font-family: var(--display); font-size: 1.12rem; }
.related a:hover { color: var(--accent); }
.related .rk { display: block; font-family: var(--sans); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-2); margin-bottom: .25rem; }

/* ---------- 贊助位 sponsor ---------- */
.sponsor {
  border: 1px solid var(--line-2); background: var(--paper-2);
  padding: 1.2rem 1.35rem; position: relative; max-width: var(--measure);
}
.sponsor::before {
  content: "SPONSORED"; position: absolute; top: -.62rem; left: 1.1rem; background: var(--paper);
  font-family: var(--sans); font-size: .62rem; letter-spacing: .22em; color: var(--muted);
  padding: 0 .5rem; border: 1px solid var(--line-2);
}
.sponsor__row { display: flex; gap: 1rem; align-items: flex-start; }
.sponsor__mark { flex: 0 0 auto; width: 2.6rem; height: 2.6rem; border: 1px solid var(--line-2); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-family: var(--sans); font-weight: 700; letter-spacing: .04em; color: var(--ink); background: var(--card); }
.sponsor__body { flex: 1; }
.sponsor__title { font-family: var(--sans); font-weight: 600; font-size: .92rem; color: var(--ink); margin: 0 0 .2rem; }
.sponsor__text { font-size: .85rem; color: var(--muted); margin: 0 0 .6rem; line-height: 1.55; }
.sponsor__link { font-family: var(--sans); font-size: .82rem; color: var(--accent); text-decoration: none; display: inline-flex; align-items: center; gap: .35rem; min-height: 44px; }
.sponsor__link:hover { color: var(--ink); }
.sponsor__link::after { content: "→"; transition: transform .2s; }
.sponsor__link:hover::after { transform: translateX(3px); }
.sponsor--aside { margin: 2rem 0 0; }

/* ---------- 版權頁 colophon (footer) ---------- */
.colophon { border-top: 2px solid var(--ink); margin-top: clamp(3rem,7vw,5rem); background: var(--paper); padding-bottom: env(safe-area-inset-bottom); }
.colophon__top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 2rem; padding: clamp(2.4rem,5vw,3.5rem) 0 2.2rem; }
@media (max-width: 760px){ .colophon__top { grid-template-columns: 1fr 1fr; gap: 1.6rem; } .colophon__brand { grid-column: 1 / -1; } }
.colophon__brand .wordmark { padding-left: 2.7rem; background-size: 2.05rem 2.05rem; }
.colophon__brand .wordmark__zh { font-size: 1.6rem; }
.colophon__motto { color: var(--muted); font-size: .95rem; max-width: 22rem; margin-top: 1rem; line-height: 1.7; }
.colophon h4 { font-family: var(--sans); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin: 0 0 1rem; }
.colophon ul { list-style: none; }
.colophon li { margin-bottom: .6rem; }
.colophon a { color: var(--ink-2); text-decoration: none; font-size: .92rem; }
.colophon a:hover { color: var(--accent); }
.colophon__base { border-top: 1px solid var(--line); padding: 1.3rem 0 2.2rem; display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; align-items: center; justify-content: space-between; font-family: var(--sans); font-size: .78rem; color: var(--muted); }
.colophon__base p { margin: 0; }
.colophon__base .imprint { max-width: 40rem; line-height: 1.6; }

/* ---------- 語言中樞 root hub ---------- */
.hub { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: 2rem var(--gutter); }
.hub__inner { max-width: 34rem; }
.hub__title { font-family: var(--display); font-weight: 400; font-size: clamp(2.4rem,7vw,4rem); margin: .4rem 0 .2rem; letter-spacing: .02em; }
.hub__en { font-family: var(--sans); letter-spacing: .5em; text-transform: uppercase; font-size: .72rem; color: var(--muted); padding-left: .5em; }
.hub__deck { color: var(--ink-2); margin: 1.4rem auto 2.4rem; line-height: 1.7; max-width: 26rem; }
.hub__choices { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hub__choice { text-decoration: none; border: 1px solid var(--line-2); padding: 1rem 1.8rem; min-width: 9rem; color: var(--ink); transition: .2s; background: var(--card); }
.hub__choice:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.hub__choice b { display: block; font-family: var(--display); font-size: 1.3rem; }
.hub__choice span { font-family: var(--sans); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.hub__choice--soon { opacity: .5; pointer-events: none; }

/* ---------- 中轉頁 exit ---------- */
.exit-page { min-height: 100svh; display: grid; place-items: center; padding: 2rem var(--gutter); text-align: center; }
.exit-card { max-width: 30rem; border: 1px solid var(--line-2); background: var(--card); padding: 2.2rem 2rem; box-shadow: var(--shadow-soft); }
.exit-card .tag { font-family: var(--sans); font-size: .66rem; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--line-2); display: inline-block; padding: .2rem .7rem; }
.exit-card h1 { font-family: var(--display); font-weight: 500; font-size: 1.7rem; margin: 1.1rem 0 .6rem; }
.exit-card p { color: var(--ink-2); font-size: .96rem; }
.exit-card .go { display: inline-block; margin-top: 1.2rem; font-family: var(--sans); font-weight: 600; font-size: .9rem; color: var(--paper); background: var(--accent); text-decoration: none; padding: .8rem 1.6rem; border-radius: 4px; min-height: 44px; }
.exit-card .go:hover { background: var(--ink); }
.exit-card .go--disabled { cursor: not-allowed; opacity: .58; background: var(--muted); }
.exit-card .go--disabled:hover { background: var(--muted); }
.exit-card .back { display: inline-flex; align-items: center; min-height: 44px; margin-top: 1rem; font-family: var(--sans); font-size: .82rem; color: var(--muted); text-decoration: none; }
.exit-card .countdown { font-variant-numeric: tabular-nums; }

/* ---------- 雜項 ---------- */
.eyebrow-page { padding: clamp(2.4rem,6vw,4rem) 0 1rem; }
.prose { max-width: 40rem; margin-inline: auto; }
.prose h2 { font-family: var(--display); font-weight: 500; font-size: clamp(1.4rem,3vw,1.9rem); margin: 2.4rem 0 1rem; }
.prose h3 { font-family: var(--display); font-weight: 600; font-size: 1.15rem; margin: 1.7rem 0 .6rem; }
.prose ul { padding-left: 0; list-style: none; margin: 0 0 1.4em; }
.prose ul > li { position: relative; padding-left: 1.4em; margin-bottom: .5em; }
.prose ul > li::before { content: "—"; position: absolute; left: 0; color: var(--gold); }
.tag-row { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.4rem 0; }
.tag-row a { font-family: var(--sans); font-size: .78rem; text-decoration: none; color: var(--ink-2); border: 1px solid var(--line-2); border-radius: 999px; padding: .35rem .9rem; }
.tag-row a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 收尾細節 ---------- */
:where([id]) { scroll-margin-top: 5.5rem; }
::selection { background: color-mix(in srgb, var(--accent) 22%, transparent); color: var(--ink); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
  .dispatch:hover { transform: none; }
  .dispatch:hover .dispatch__frame img { transform: none; }
}

.print-only { display: none; }
@media print {
  .masthead, .colophon, .toc, .sponsor, .nav-toggle, .related { display: none !important; }
  body { background: #fff; color: #000; }
  .longform a { background: none; color: #000; }
}