/* Polyglot · 合并自 prototypes/ 的两套样式（列表页 + 详情页），保留所有 class 名。 */
:root {
  --bg: #fbf6ea;
  --bg-soft: #f3ecdb;
  --card: #fffcf3;
  --ink: #1a1612;
  --ink-soft: #4a3f33;
  --sepia: #6b5439;
  --sepia-soft: #a08d6b;
  --rule: #e3d8c0;
  --rule-strong: #c9bb9c;
  --accent: #a23030;
  --accent-soft: #d9a8a8;
  --gold: #b8862c;
  --green: #2a6644;
  --en-font: 'Newsreader', Georgia, 'Times New Roman', serif;
  --display-font: 'Lora', Georgia, 'Times New Roman', serif;
  --zh-font: 'Noto Serif SC', 'Songti SC', 'STSong', 'Songti TC', 'SimSun', '宋体', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  background: var(--bg);  /* 统一成内容 cream：iOS 状态栏取根背景色，避免顶端与正文不一致、不沉浸 */
  color: var(--ink);
  font-family: var(--en-font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}
body { display: flex; justify-content: center; }
/* 桌面端（卡片两侧出现留白时）给居中的 .phone 卡一圈淡色边框；手机端全宽不触发 */
@media (min-width: 480px) { html, body { background: var(--bg-soft); } }
a { color: inherit; text-decoration: none; }

.phone {
  width: 100%;
  max-width: 430px;
  min-height: 100vh;
  background: var(--bg);
  position: relative;
  box-shadow: 0 0 0 1px var(--rule), 0 30px 60px -20px rgba(74, 63, 51, 0.18);
}

/* ───── Top utility bar ───── */
.utility {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
  padding-top: calc(14px + env(safe-area-inset-top));  /* edge-to-edge：品牌避开状态栏，磨砂底色铺到屏幕最顶 */
  border-bottom: 1px solid var(--rule);
  background: rgba(251, 246, 234, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
  transition: transform 0.28s ease;  /* 向下滚隐藏 / 向上滚·到顶显示 */
}
.utility.nav-hidden { transform: translateY(-100%); }  /* 仅 article 用：list 顶栏始终固定可见 */
.brand {
  font-family: 'Noto Serif SC', var(--zh-font);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-dot { width: 7px; height: 7px; background: var(--accent); border-radius: 50%; display: inline-block; }
.brand-suffix { font-family: 'Noto Serif SC', var(--zh-font); font-style: normal; font-size: 12px; color: var(--sepia); font-weight: 400; }
.brand-suffix em { font-family: var(--display-font); font-style: italic; }
.util-right { display: flex; align-items: center; gap: 14px; color: var(--sepia); font-size: 12px; }
.util-date { font-family: var(--zh-font); letter-spacing: 0.05em; }

/* ───── List header ───── */
.list-header { padding: 26px 24px 20px; border-bottom: 1px solid var(--rule); }
.date-row { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.list-title {
  font-family: var(--display-font);
  font-size: 28px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.02em; line-height: 1.1;
}
.list-title em { font-style: italic; color: var(--accent); font-weight: 500; }
.list-date { font-family: var(--zh-font); font-size: 14px; color: var(--sepia); letter-spacing: 0.05em; }
.update-meta {
  font-family: var(--en-font); font-size: 10.5px; color: var(--sepia);
  letter-spacing: 0.16em; text-transform: uppercase; margin-top: 4px;
}
.filter-row { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.filter-chip {
  font-family: var(--en-font); font-size: 12.5px; background: transparent;
  border: 1px solid var(--rule); color: var(--sepia); padding: 7px 14px 4px;
  display: inline-flex; align-items: center; justify-content: center; line-height: 1;
  border-radius: 14px; cursor: pointer; transition: all 0.2s ease; letter-spacing: 0.02em;
}
.filter-chip:hover { border-color: var(--sepia); color: var(--ink); }
.filter-chip.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.filter-chip .count { font-style: italic; margin-left: 4px; opacity: 0.7; }

/* ───── Group / lead label ───── */
.lead-label {
  display: flex; align-items: center; gap: 10px; padding: 22px 24px 0;
  font-family: var(--en-font); font-size: 10.5px; text-transform: uppercase;
  letter-spacing: 0.22em; color: var(--accent); font-weight: 500;
}
.lead-label::before { content: ""; width: 7px; height: 7px; background: var(--accent); display: inline-block; }
.lead-label.learn { color: var(--gold); }
.lead-label.learn::before { background: var(--gold); }
.lead-label .zh {
  font-family: var(--zh-font); text-transform: none; letter-spacing: 0.1em;
  color: var(--sepia); font-size: 11px; font-weight: 400;
}

/* ───── Hero card ───── */
.hero { display: block; padding: 12px 24px 28px; border-bottom: 1px solid var(--rule); cursor: pointer; }
.hero-image-wrap { position: relative; margin-bottom: 16px; border-radius: 3px; overflow: hidden; background: var(--rule); }
.hero-image { width: 100%; height: 220px; object-fit: cover; display: block; }

.card-meta-line {
  display: flex; align-items: center; gap: 7px; font-family: var(--en-font);
  font-size: 10.5px; color: var(--sepia); text-transform: uppercase;
  letter-spacing: 0.14em; margin-bottom: 10px; flex-wrap: wrap;
}
.card-meta-line .source { font-weight: 500; color: var(--ink); }
.card-meta-line .cefr {
  background: var(--gold); color: #fffdf3; padding: 1.5px 6px; border-radius: 3px;
  letter-spacing: 0.1em; font-weight: 500; font-size: 9.5px;
}
.card-meta-line .sep { color: var(--sepia-soft); }

.hero-title {
  font-family: var(--display-font); font-size: 25px; font-weight: 600; color: var(--ink);
  line-height: 1.16; letter-spacing: -0.012em; margin-bottom: 6px;
}
.hero-subtitle { font-family: var(--zh-font); font-size: 15.5px; color: var(--sepia); line-height: 1.5; letter-spacing: 0.02em; margin-bottom: 14px; }
.hero-excerpt { font-family: var(--en-font); font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); font-style: italic; margin-bottom: 20px; }

/* Score trio (hero) */
.score-trio { display: flex; gap: 24px; padding-top: 16px; border-top: 1px dotted var(--rule-strong); }
.score-cell { flex: 1; }
.score-label {
  font-family: var(--en-font); font-size: 9.5px; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--sepia); display: block; margin-bottom: 3px; font-weight: 500;
}
.score-value {
  font-family: var(--display-font); font-size: 24px; font-weight: 500; font-style: italic;
  color: var(--ink); letter-spacing: -0.015em; display: block; line-height: 0.95;
}
.score-value .decimal { font-size: 16px; color: var(--sepia-soft); margin-left: -1px; }
.score-cell.learn .score-value { color: var(--accent); }
.score-cell.learn .score-label { color: var(--accent); }
.score-cell.learn .score-value .decimal { color: var(--accent-soft); }

/* ───── Standard card ───── */
.card {
  display: flex; gap: 14px; padding: 22px 24px; border-bottom: 1px solid var(--rule);
  align-items: flex-start; cursor: pointer; transition: background 0.15s ease; position: relative;
}
.card:hover, .card:active { background: rgba(184, 134, 44, 0.05); }
.card-thumb { width: 92px; height: 92px; flex-shrink: 0; border-radius: 3px; overflow: hidden; background: var(--rule); position: relative; }
.card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-body { flex: 1; min-width: 0; }
.card-meta {
  display: flex; align-items: center; gap: 6px; font-family: var(--en-font); font-size: 10px;
  color: var(--sepia); text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 6px; flex-wrap: wrap;
}
.card-meta .source { color: var(--ink); font-weight: 500; }
.card-meta .cefr { background: var(--gold); color: #fffdf3; padding: 1px 5px; border-radius: 2px; font-size: 9px; letter-spacing: 0.1em; font-weight: 500; }
.card-meta .sep { color: var(--sepia-soft); }
.card-title {
  font-family: var(--display-font); font-size: 17.5px; font-weight: 500; color: var(--ink);
  line-height: 1.2; letter-spacing: -0.012em; margin-bottom: 5px;
}
.card-subtitle { font-family: var(--zh-font); font-size: 13.5px; color: var(--sepia); line-height: 1.45; letter-spacing: 0.02em; margin-bottom: 10px; }
.card-scores { display: flex; align-items: center; gap: 10px; font-family: var(--en-font); flex-wrap: wrap; }
.mini-score { display: inline-flex; align-items: baseline; gap: 4px; }
.mini-score .lbl { font-size: 9px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--sepia-soft); font-weight: 500; }
.mini-score em { font-style: italic; font-family: var(--display-font); font-size: 14px; font-weight: 500; color: var(--ink); }
.mini-score.learn em { color: var(--accent); }
.mini-score.learn .lbl { color: var(--accent); opacity: 0.65; }
.score-dot { color: var(--rule-strong); margin: 0 -2px; }

/* 缺图占位（v1：RSS 无图时） */
.img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--bg-soft), var(--rule));
  color: var(--sepia-soft); font-family: var(--display-font); font-style: italic;
}
.hero-image-wrap .img-placeholder { height: 220px; font-size: 40px; }
.card-thumb .img-placeholder { font-size: 26px; }

/* ───── List footer ───── */
.list-footer { padding: 32px 24px 56px; text-align: center; }
.list-footer .footer-note { font-family: var(--zh-font); font-size: 11px; color: var(--sepia-soft); letter-spacing: 0.1em; line-height: 1.6; }
.list-footer .footer-note .en { font-family: var(--display-font); font-style: italic; font-size: 12px; letter-spacing: 0.04em; }

/* ═══════════════ Reader (article) ═══════════════ */
.toggle-trans {
  background: transparent; border: 1px solid var(--rule); color: var(--ink-soft);
  font-family: var(--zh-font); font-size: 12px; padding: 5px 12px; border-radius: 14px;
  cursor: pointer; transition: all 0.2s ease; letter-spacing: 0.04em;
}
.toggle-trans:hover, .toggle-trans:focus { border-color: var(--sepia); color: var(--ink); outline: none; }
.toggle-trans.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.back-link { font-family: var(--en-font); font-style: italic; font-size: 13px; color: var(--sepia); }
.util-actions { display: flex; align-items: center; gap: 12px; }
.share-btn {
  background: transparent; border: none; padding: 2px; margin: 0; color: var(--sepia);
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; line-height: 0;
  -webkit-tap-highlight-color: transparent;
}
.share-btn svg { width: 19px; height: 19px; display: block; }
.share-btn:hover, .share-btn:focus { color: var(--ink); outline: none; }
.share-btn:active { color: var(--accent); }
/* 复制链接等轻提示（Web Share 不支持时降级用） */
.toast {
  position: fixed; left: 50%; bottom: calc(40px + env(safe-area-inset-bottom));
  transform: translate(-50%, 8px); background: var(--ink); color: var(--bg);
  font-family: var(--zh-font); font-size: 13px; letter-spacing: 0.03em;
  padding: 9px 18px; border-radius: 20px; z-index: 200;
  opacity: 0; pointer-events: none; transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 8px 24px -8px rgba(26, 22, 18, 0.5);
}
.toast.show { opacity: 0.96; transform: translate(-50%, 0); }

.meta {
  display: flex; align-items: center; gap: 8px; padding: 28px 24px 14px; font-family: var(--en-font);
  font-size: 10.5px; color: var(--sepia); text-transform: uppercase; letter-spacing: 0.16em; flex-wrap: wrap;
}
.meta-sep { color: var(--sepia-soft); margin: 0 -2px; }
.cefr { background: var(--gold); color: #fffdf3; padding: 2px 7px; border-radius: 3px; letter-spacing: 0.1em; font-weight: 500; font-size: 10px; }
.title {
  font-family: var(--display-font); font-size: 30px; font-weight: 600; line-height: 1.12; color: var(--ink);
  padding: 6px 24px 8px; letter-spacing: -0.012em;
}
.subtitle { font-family: var(--zh-font); font-size: 16px; font-weight: 400; color: var(--sepia); padding: 4px 24px 24px; line-height: 1.5; letter-spacing: 0.02em; }
.hero-image-wrap.article-hero { margin: 0 24px 8px; }
/* 详情页 hero 按原图比例完整显示，不锁高、不裁切（列表页 hero 仍固定 220px） */
.hero-image-wrap.article-hero .hero-image { height: auto; }

.divider { height: 24px; margin: 4px 24px 0; position: relative; display: flex; align-items: center; justify-content: center; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.divider span { padding: 0 14px; color: var(--sepia-soft); font-family: var(--display-font); font-size: 14px; font-style: italic; letter-spacing: 0.2em; }

.body-content { padding: 28px 24px 44px; }
.para-en {
  font-family: var(--en-font); font-size: 17.5px; line-height: 1.68; color: var(--ink);
  margin-bottom: 14px; font-variation-settings: "opsz" 18, "wght" 410; letter-spacing: 0.003em;
}
.para-en:first-child::first-letter {
  font-family: var(--display-font); font-size: 56px; font-weight: 500; float: left;
  line-height: 0.92; padding: 6px 10px 0 0; color: var(--ink);
}
.para-zh {
  font-family: var(--zh-font); font-size: 15.5px; line-height: 1.95; color: var(--sepia);
  margin-bottom: 30px; padding-left: 14px; border-left: 2px solid var(--rule); letter-spacing: 0.015em;
  transition: opacity 0.25s ease, max-height 0.4s ease, margin 0.3s ease, padding 0.3s ease; overflow: hidden; max-height: 600px;
}
.hide-zh .para-zh { opacity: 0; max-height: 0; margin-bottom: 0; padding-top: 0; padding-bottom: 0; border-left-width: 0; padding-left: 0; }
.hide-zh .para-en { margin-bottom: 24px; }

mark.vocab {
  background: none; color: inherit; border-bottom: 1.5px dashed var(--accent-soft);
  padding-bottom: 1px; cursor: pointer; transition: background 0.2s, border-color 0.2s; border-radius: 0;
}
mark.vocab:hover, mark.vocab:focus { background: rgba(162, 48, 48, 0.08); border-bottom-color: var(--accent); }

.vocab-section {
  border-top: 1px solid var(--rule); padding: 36px 24px 60px;
  background: radial-gradient(circle at top center, rgba(184, 134, 44, 0.06), transparent 60%), var(--bg);
}
.vocab-head-row { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.vocab-heading { font-family: var(--display-font); font-size: 19px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.vocab-count { font-family: var(--en-font); font-size: 12px; font-style: italic; color: var(--sepia); }
.vocab-subheading { font-family: var(--zh-font); font-size: 13px; color: var(--sepia); margin-bottom: 24px; letter-spacing: 0.05em; }
.vocab-card { background: var(--card); border: 1px solid var(--rule); border-radius: 4px; padding: 18px 18px 16px; margin-bottom: 14px; transition: background 0.4s ease, border-color 0.3s ease; }
.vocab-card.flash { animation: flash 1.4s ease-out; }
@keyframes flash { 0% { background: var(--card); border-color: var(--rule); } 15% { background: #fbeec5; border-color: var(--gold); } 100% { background: var(--card); border-color: var(--rule); } }
.vocab-term-row { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.vocab-term { font-family: var(--display-font); font-style: italic; font-size: 22px; font-weight: 500; color: var(--ink); letter-spacing: -0.005em; margin-right: 4px; }
.vocab-tag {
  font-family: var(--en-font); font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--sepia); border: 1px solid var(--rule); padding: 4px 7px 0; border-radius: 2px;
  font-weight: 500; line-height: 1.4; white-space: nowrap;
}
.vocab-tag.formal { color: var(--accent); border-color: var(--accent-soft); background: rgba(162, 48, 48, 0.04); }
.vocab-tag.idiom, .vocab-tag.phrasal, .vocab-tag.punheadline { color: #6b4f1f; border-color: #cdb78a; background: rgba(184, 134, 44, 0.08); }
.vocab-tag.aus, .vocab-tag.slang { color: var(--green); border-color: #a3c4ad; background: rgba(42, 102, 68, 0.05); }
.vocab-tag.allusion, .vocab-tag.irony { color: #6d4a6b; border-color: #c4a9c2; background: rgba(109, 74, 107, 0.05); }
.vocab-tag.jargon { color: var(--ink-soft); border-color: var(--rule-strong); background: rgba(74, 63, 51, 0.04); }
.vocab-play {
  background: transparent; border: 1px solid var(--rule); width: 28px; height: 28px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer; color: var(--sepia);
  transition: all 0.2s ease; flex-shrink: 0; padding: 0; margin-left: 2px;
}
.vocab-play:hover, .vocab-play:focus { border-color: var(--accent); color: var(--accent); outline: none; }
.vocab-play:active { transform: scale(0.92); }
.vocab-play.playing { border-color: var(--accent); color: var(--accent); background: rgba(162, 48, 48, 0.07); animation: pulse 1.1s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }
.vocab-play svg { width: 12px; height: 12px; }
.vocab-def-en { font-family: var(--en-font); font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); margin: 10px 0 8px; }
.vocab-def-zh { font-family: var(--zh-font); font-size: 13.5px; line-height: 1.75; color: var(--sepia); margin-bottom: 12px; letter-spacing: 0.01em; }
.vocab-example { font-family: var(--en-font); font-style: italic; font-size: 13.5px; line-height: 1.6; color: var(--sepia); padding: 6px 0 0 11px; border-left: 2px solid var(--gold); margin-top: 10px; }
.vocab-example-label { font-style: normal; font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--gold); margin-right: 6px; font-weight: 500; font-family: var(--en-font); }
.vocab-section .footer-note { text-align: center; font-family: var(--display-font); font-style: italic; font-size: 13px; color: var(--sepia-soft); padding-top: 32px; letter-spacing: 0.06em; }

@media (max-width: 380px) {
  .list-title { font-size: 25px; }
  .hero-title { font-size: 23px; }
  .card-title { font-size: 17px; }
  .list-header, .hero, .card { padding-left: 20px; padding-right: 20px; }
  .card-thumb { width: 84px; height: 84px; }
  .score-trio { gap: 16px; }
  .score-value { font-size: 22px; }
  .title { font-size: 26px; padding: 4px 20px 6px; }
  .meta { padding: 24px 20px 12px; font-size: 10px; }
  .subtitle { padding: 4px 20px 20px; font-size: 15px; }
  .body-content { padding: 24px 20px 36px; }
  .vocab-section { padding: 32px 20px 50px; }
  .para-en { font-size: 17px; }
  .para-zh { font-size: 15px; }
}