/* Wordscape：一本印刷的星图 + 词典。浅色是纸面星图，深色是夜空。星图是唯一出彩的地方，其余保持安静。 */
@font-face { font-family: "Literata"; src: url("/fonts/literata.woff2") format("woff2"); font-weight: 200 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Literata"; src: url("/fonts/literata-italic.woff2") format("woff2"); font-weight: 200 900; font-style: italic; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("/fonts/public-sans.woff2") format("woff2"); font-weight: 100 900; font-style: normal; font-display: swap; }

:root {
  --paper: #F2F4F7; --paper-2: #E6EAEF; --sheet: #FBFCFD;
  --ink: #16202C; --ink-2: #465264; --ink-3: #76828F; --rule: #D2D8DF;
  --prussian: #1B456E; --prussian-2: #2C6294; --prussian-soft: #DAE5F0; --on-prussian: #FBFCFD;
  --brass: #96701F; --brass-soft: #F2E9D4;
  --again: #A3433A; --again-soft: #F4E1DE; --good: #3B6F53; --good-soft: #DDEBE2;
  --chart-bg: #F7F8F5; --chart-line: #CBD3DC; --chart-star: #1B456E; --chart-faint: #98A4B2; --dust: 0;
  --grat: rgba(27, 69, 110, .075);
  --shadow: 0 1px 2px rgba(22, 32, 44, .06), 0 10px 28px rgba(22, 32, 44, .09);
  --serif: "Literata", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: "Public Sans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --t-xs: 12.5px; --t-s: 14px; --t-m: 16px; --t-l: 19px; --t-xl: 24px; --t-2xl: 32px; --t-3xl: 46px;
  --gl: max(16px, env(safe-area-inset-left, 0px)); --gr: max(16px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --paper: #0C121B; --paper-2: #151E2A; --sheet: #121A25;
  --ink: #E6EAF0; --ink-2: #AAB4C2; --ink-3: #76828F; --rule: #243040;
  --prussian: #8FB6DE; --prussian-2: #AECBEA; --prussian-soft: #18283A; --on-prussian: #0C121B;
  --brass: #D9B86E; --brass-soft: #2B2617;
  --again: #E08A7F; --again-soft: #3A221F; --good: #8CC5A2; --good-soft: #1C3127;
  --chart-bg: #080D15; --chart-line: #1C2836; --chart-star: #EAEFF6; --chart-faint: #57657A; --dust: 1;
  --grat: rgba(143, 182, 222, .07);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .4);
  color-scheme: dark; } }
:root[data-theme="dark"] {
  --paper: #0C121B; --paper-2: #151E2A; --sheet: #121A25;
  --ink: #E6EAF0; --ink-2: #AAB4C2; --ink-3: #76828F; --rule: #243040;
  --prussian: #8FB6DE; --prussian-2: #AECBEA; --prussian-soft: #18283A; --on-prussian: #0C121B;
  --brass: #D9B86E; --brass-soft: #2B2617;
  --again: #E08A7F; --again-soft: #3A221F; --good: #8CC5A2; --good-soft: #1C3127;
  --chart-bg: #080D15; --chart-line: #1C2836; --chart-star: #EAEFF6; --chart-faint: #57657A; --dust: 1;
  --grat: rgba(143, 182, 222, .07);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .4);
  color-scheme: dark; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { height: 100%; -webkit-text-size-adjust: 100%; }
body { min-height: 100%; margin: 0; overflow-x: clip; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: var(--t-m); line-height: 1.55; -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; }
/* 页面背景：右上角一组星图的经纬圈，很淡，每一页都在 */
body::after { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    repeating-conic-gradient(from 90deg at 100% 0, var(--grat) 0 .12deg, transparent .12deg 15deg),
    radial-gradient(circle at 100% 0, transparent 179px, var(--grat) 180px 181px, transparent 182px 339px, var(--grat) 340px 341px, transparent 342px 539px, var(--grat) 540px 541px, transparent 542px 779px, var(--grat) 780px 781px, transparent 782px);
  -webkit-mask-image: radial-gradient(circle at 100% 0, #000 120px, transparent 860px); mask-image: radial-gradient(circle at 100% 0, #000 120px, transparent 860px); }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--prussian-2); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: var(--prussian); }
.muted { color: var(--ink-3); }
.num { font-variant-numeric: tabular-nums; }

/* ---------- 入口（配对、首次设置） ---------- */
.gate { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; background: var(--paper); padding: 24px var(--gr) 24px var(--gl); overflow: auto; }
.gate-box { width: min(380px, 100%); display: flex; flex-direction: column; gap: 14px; }
.gate-logo { color: var(--prussian); }
.gate-box h1 { font-size: 40px; font-weight: 600; letter-spacing: -0.02em; }
.gate-box .lead { font-family: var(--serif); font-size: var(--t-l); color: var(--ink-2); line-height: 1.5; }
.gate-box label { font-size: var(--t-s); color: var(--ink-2); font-weight: 500; }
.gate-box input { width: 100%; height: 52px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--rule); background: var(--sheet); font-size: 20px; }
.gate-box input.code { font-family: var(--serif); font-size: 28px; letter-spacing: .32em; text-align: center; font-variant-numeric: tabular-nums; }
.gate-box .err { color: var(--again); font-size: var(--t-s); min-height: 1.4em; }
.gate-box details { font-size: var(--t-s); color: var(--ink-2); }
.gate-box details summary { cursor: pointer; padding: 6px 0; }
.gate-box details > div { display: flex; flex-direction: column; gap: 10px; padding-top: 8px; }

/* ---------- 顶栏 ---------- */
.top { position: sticky; top: 0; z-index: 20; padding-top: env(safe-area-inset-top, 0px); background: color-mix(in srgb, var(--paper) 90%, transparent); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.top-in { max-width: 1160px; margin: 0 auto; padding: 10px var(--gr) 10px var(--gl); display: flex; align-items: center; gap: 18px; }
.brand { font-family: var(--serif); font-size: 21px; font-weight: 600; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 9px; letter-spacing: -0.015em; }
.brand svg { flex: none; color: var(--prussian); }
.nav { display: flex; gap: 2px; }
.nav a { padding: 6px 12px; border-radius: 7px; color: var(--ink-2); text-decoration: none; font-size: var(--t-s); font-weight: 500; }
.nav a:hover { background: var(--paper-2); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--prussian); background: var(--prussian-soft); }
.badge, .tabbar .dot { display: inline-block; min-width: 18px; padding: 0 5px; margin-left: 5px; border-radius: 9px; background: var(--prussian); color: var(--on-prussian); font-size: 11px; line-height: 18px; text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; }
.search { margin-left: auto; position: relative; flex: 0 1 260px; min-width: 0; }
.search input { width: 100%; height: 36px; padding: 0 12px 0 32px; border-radius: 9px; border: 1px solid var(--rule); background: var(--sheet); font-size: var(--t-s); }
.search svg { position: absolute; left: 10px; top: 50%; translate: 0 -50%; color: var(--ink-3); pointer-events: none; }
.icon-btn { flex: none; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 9px; border: 1px solid transparent; background: none; color: var(--ink-2); }
.icon-btn:hover { background: var(--paper-2); color: var(--ink); }

.tabbar { display: none; }
@media (max-width: 780px) {
  .nav { display: none; }
  .brand span { display: none; }
  .search { flex: 1 1 auto; }
  input, textarea, select { font-size: 16px !important; } /* iPhone：小于 16px 的输入框一点就放大页面 */
  .tabbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 25; background: color-mix(in srgb, var(--sheet) 94%, transparent); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-top: 1px solid var(--rule);
    padding: 6px var(--gr) calc(6px + env(safe-area-inset-bottom, 0px)) var(--gl); justify-content: space-around; }
  .tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 4px 0; color: var(--ink-3); text-decoration: none; font-size: 11.5px; position: relative; }
  .tabbar a[aria-current="page"] { color: var(--prussian); }
  .tabbar .dot { position: absolute; top: 0; left: calc(50% + 6px); margin: 0; min-width: 16px; line-height: 16px; font-size: 10px; }
  main { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)) !important; }
}

/* ---------- 页面通用 ---------- */
main { max-width: 1160px; margin: 0 auto; padding: 32px var(--gr) 72px var(--gl); }
.note { display: flex; gap: 10px; align-items: center; justify-content: space-between; padding: 10px 14px; border-radius: 9px; background: var(--brass-soft); color: var(--ink); font-size: var(--t-s); margin-bottom: 20px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 42px; padding: 0 18px; border-radius: 9px; border: 1px solid var(--rule); background: var(--sheet); font-weight: 500; font-size: var(--t-s); text-decoration: none; color: var(--ink); white-space: nowrap; }
.btn:hover { border-color: var(--ink-3); }
.btn.primary { background: var(--prussian); border-color: var(--prussian); color: var(--on-prussian); }
.btn.primary:hover { background: var(--prussian-2); border-color: var(--prussian-2); }
.btn.ghost { border-color: transparent; background: transparent; color: var(--ink-2); padding: 0 10px; }
.btn.ghost:hover { background: var(--paper-2); color: var(--ink); }
.btn.small { height: 32px; padding: 0 12px; font-size: 13px; border-radius: 7px; }
.btn.block { width: 100%; height: 48px; font-size: var(--t-m); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.danger { color: var(--again); }
.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 30px; padding: 3px 12px; border-radius: 15px; border: 1px solid var(--rule); background: var(--sheet); font-size: 13px; color: var(--ink-2); text-align: left; }
.chip:hover:not(:disabled) { border-color: var(--ink-3); }
.chip[aria-pressed="true"] { border-color: var(--prussian); color: var(--prussian); background: var(--prussian-soft); }
.chip:disabled { cursor: default; }
.label { font-size: var(--t-xs); color: var(--ink-3); font-weight: 500; }
.src { display: inline-block; font-size: 11.5px; padding: 1px 7px; border-radius: 4px; background: var(--paper-2); color: var(--ink-2); white-space: nowrap; }
.src.chat { background: var(--brass-soft); color: var(--brass); }
.src.article { background: var(--prussian-soft); color: var(--prussian); }
.spinner { flex: none; width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--rule); border-top-color: var(--prussian); animation: spin .9s linear infinite; }
@keyframes spin { to { rotate: 360deg; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: var(--t-s); font-weight: 500; color: var(--ink-2); }
.field input, .field select, .field textarea, .input { width: 100%; min-height: 40px; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--rule); background: var(--paper); font-size: var(--t-s); }
.field textarea { min-height: 150px; resize: vertical; line-height: 1.5; }
.hint { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }

/* ---------- 今天 ---------- */
.today { display: grid; grid-template-columns: minmax(0, 1fr) 348px; gap: 56px; align-items: start; }
@media (max-width: 940px) { .today { grid-template-columns: minmax(0, 1fr); gap: 36px; } }
.date-line { font-family: var(--serif); font-style: italic; color: var(--ink-3); font-size: var(--t-m); margin-bottom: 18px; }
.hero-q { font-family: var(--serif); font-size: clamp(27px, 4.3vw, var(--t-3xl)); line-height: 1.24; letter-spacing: -0.018em; font-weight: 400; max-width: 20em; margin-top: 10px; }
.blank { display: inline-block; min-width: 3em; padding: 0 .1em; border-bottom: 2px solid var(--prussian); color: var(--prussian); font-style: italic; text-align: center; letter-spacing: .02em; }
.hero-q mark, .card-prompt mark { background: none; color: var(--prussian); border-bottom: 2px solid var(--brass); }
.hero-meta { margin-top: 16px; color: var(--ink-2); font-size: var(--t-s); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.hero-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
.section-h { font-family: var(--serif); font-size: var(--t-l); margin-bottom: 10px; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.section-h a { font-family: var(--sans); font-size: 13px; text-decoration: none; font-weight: 500; }
.article-card { margin-top: 52px; padding: 22px 24px; background: var(--sheet); border: 1px solid var(--rule); border-radius: 12px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 20px; align-items: center; }
.article-card h3 { font-size: var(--t-xl); margin: 6px 0; }
.article-card p { color: var(--ink-2); font-size: var(--t-s); }
@media (max-width: 560px) { .article-card { grid-template-columns: minmax(0, 1fr); } }
.side { display: flex; flex-direction: column; gap: 28px; min-width: 0; }
.mini { position: relative; display: block; aspect-ratio: 1 / 1; max-width: 100%; border-radius: 14px; overflow: hidden; border: 1px solid var(--rule); background: #101211; text-decoration: none; }
.mini .cap { position: absolute; z-index: 2; left: 12px; bottom: 10px; font-size: 12.5px; color: #c9d6df; background: #0d1210c0; padding: 3px 8px; border-radius: 6px; }
.mini:hover { border-color: var(--ink-3); }
@media (max-width: 940px) { .mini { aspect-ratio: 16 / 10; } }
.ledger { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); }
.ledger div { padding: 12px 0 10px; }
.ledger div + div { padding-left: 14px; border-left: 1px solid var(--rule); }
.ledger b { display: block; font-family: var(--serif); font-size: var(--t-2xl); font-weight: 500; line-height: 1.1; font-variant-numeric: tabular-nums; }
.ledger span { font-size: var(--t-xs); color: var(--ink-3); }
.recent { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.recent li { border-bottom: 1px solid var(--rule); }
.recent button { all: unset; box-sizing: border-box; cursor: pointer; display: block; width: 100%; padding: 11px 0; }
.recent button:focus-visible { outline: 2px solid var(--prussian-2); }
.recent button:hover .w { color: var(--prussian); }
.recent .w { font-family: var(--serif); font-size: var(--t-l); font-weight: 500; }
.recent .zh { color: var(--ink-2); font-size: var(--t-s); margin-left: 8px; }
.recent .ctx { display: block; font-size: 13.5px; color: var(--ink-3); margin-top: 2px; font-style: italic; font-family: var(--serif); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty { padding: 12px 0 28px; color: var(--ink-2); max-width: 34em; }
.empty h2 { font-size: clamp(26px, 4vw, 38px); line-height: 1.2; margin-bottom: 14px; color: var(--ink); }
.empty p + p { margin-top: 10px; }

/* ---------- 复习 ---------- */
.review { max-width: 720px; margin: 0 auto; }
.progress { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; font-size: 13px; color: var(--ink-3); }
.progress .bar { flex: 1; height: 3px; background: var(--rule); border-radius: 2px; overflow: hidden; }
.progress .bar i { display: block; height: 100%; background: var(--prussian); transition: width .3s ease; }
.rcard { background: var(--sheet); border: 1px solid var(--rule); border-radius: 16px; padding: clamp(22px, 5vw, 44px); box-shadow: var(--shadow); }
.card-prompt { font-family: var(--serif); font-size: clamp(24px, 3.6vw, 34px); line-height: 1.36; font-weight: 400; letter-spacing: -0.012em; }
.card-hint { margin-top: 16px; color: var(--ink-2); display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font-size: 15px; }
.answer-row { margin-top: 28px; display: flex; gap: 10px; }
.answer-row input { flex: 1; min-width: 0; height: 48px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--rule); background: var(--paper); font-family: var(--serif); font-size: var(--t-l); }
.answer-row input.ok { border-color: var(--good); background: var(--good-soft); }
.answer-row input.no { border-color: var(--again); background: var(--again-soft); }
.answer-row input.near { border-color: var(--brass); background: var(--brass-soft); }
.answer-row .btn { height: 48px; }
.verdict-line { margin-top: 8px; font-size: var(--t-s); }
.verdict-line.ok { color: var(--good); } .verdict-line.no { color: var(--again); } .verdict-line.near { color: var(--brass); }
.reveal { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--rule); }
.reveal .head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.reveal .word { font-family: var(--serif); font-size: var(--t-2xl); font-weight: 600; }
.phon { font-family: var(--serif), "Segoe UI", sans-serif; color: var(--ink-3); }
.zh-lines { margin-top: 8px; color: var(--ink); }
.en-lines { margin-top: 6px; color: var(--ink-2); font-size: 15px; font-family: var(--serif); font-style: italic; }
.grades { margin-top: 26px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.grade { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 11px 6px; border-radius: 10px; border: 1px solid var(--rule); background: var(--paper); }
.grade:hover { border-color: var(--ink-3); }
.grade b { font-weight: 600; font-size: 15px; }
.grade span { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.grade.g1 b { color: var(--again); } .grade.g3 b { color: var(--good); }
.grade.suggest { border-color: var(--prussian); box-shadow: 0 0 0 1px var(--prussian) inset; }
.grade kbd { font-size: 10.5px; color: var(--ink-3); font-family: var(--sans); }
.keys-hint { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); text-align: center; }
@media (max-width: 780px), (hover: none) { .grade kbd, .keys-hint { display: none; } }
.done-box h2 { font-size: var(--t-2xl); margin-bottom: 10px; }
.tally { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; font-size: var(--t-s); color: var(--ink-2); }
.tally b { font-family: var(--serif); font-size: var(--t-xl); font-weight: 500; color: var(--ink); margin-right: 4px; }

/* ---------- 星图（样式在 map.css） ---------- */
.view-map { width: 100vw; margin: -32px 0 0 calc(50% - 50vw); }
@media (max-width: 780px) { .view-map { margin-bottom: calc(-84px - env(safe-area-inset-bottom, 0px)); } }
@media (min-width: 781px) { .view-map { margin-bottom: -72px; } }

/* ---------- 阅读 ---------- */
.read { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 48px; align-items: start; }
@media (max-width: 940px) { .read { grid-template-columns: minmax(0, 1fr); gap: 28px; } }
.shelf { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.shelf h2 { font-size: var(--t-l); }
.topics { display: flex; flex-wrap: wrap; gap: 6px; }
.shelf-list { list-style: none; margin: 10px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.shelf-list li { border-bottom: 1px solid var(--rule); }
.shelf-list button { all: unset; box-sizing: border-box; cursor: pointer; display: block; width: 100%; padding: 10px 2px; }
.shelf-list button:focus-visible { outline: 2px solid var(--prussian-2); }
.shelf-list button[aria-current="true"] .t, .shelf-list button:hover .t { color: var(--prussian); }
.shelf-list .t { font-family: var(--serif); font-size: 15.5px; line-height: 1.35; display: block; }
.shelf-list .m { font-size: 12px; color: var(--ink-3); }
.gen-status { display: flex; align-items: center; gap: 12px; color: var(--ink-2); font-size: var(--t-s); }
.paper { background: var(--sheet); border: 1px solid var(--rule); border-radius: 14px; padding: clamp(22px, 5.5vw, 64px); box-shadow: var(--shadow); min-width: 0; }
.paper .kicker { font-family: var(--serif); font-style: italic; color: var(--ink-3); margin-bottom: 10px; }
.paper h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.14; letter-spacing: -0.02em; max-width: 18em; }
.paper .tools { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 18px 0 30px; }
.prose { font-family: var(--serif); font-size: var(--t-l); line-height: 1.74; max-width: 36em; }
.prose p + p { margin-top: 1.05em; }
.prose .w { cursor: pointer; border-radius: 3px; }
.prose .w:hover, .prose .w.on { background: var(--prussian-soft); }
.prose .w.t { border-bottom: 1.5px dotted var(--brass); }
.prose .w.mine { border-bottom: 1px solid var(--chart-faint); }
.lesson { margin-top: 32px; padding: 14px 16px; border-left: 3px solid var(--brass); background: var(--brass-soft); font-size: 15px; max-width: 38em; border-radius: 0 8px 8px 0; }
.quiz { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--ink); max-width: 38em; }
.quiz > h2 { font-size: var(--t-xl); margin-bottom: 6px; }
.quiz > p { color: var(--ink-2); font-size: var(--t-s); }
.q { margin-top: 28px; }
.q .qs { font-family: var(--serif); font-size: 17px; line-height: 1.55; margin-top: 4px; }
.q .qs mark { background: none; font-weight: 600; color: var(--prussian); }
.q .opts { margin-top: 12px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
@media (max-width: 560px) { .q .opts { grid-template-columns: minmax(0, 1fr); } }
.opt { text-align: left; padding: 11px 13px; border-radius: 9px; border: 1px solid var(--rule); background: var(--paper); font-size: var(--t-s); line-height: 1.4; }
.opt:hover:not(:disabled) { border-color: var(--ink-3); }
.opt.right { border-color: var(--good); background: var(--good-soft); }
.opt.wrong { border-color: var(--again); background: var(--again-soft); }
.opt:disabled { cursor: default; color: var(--ink); }
.q textarea, .practice textarea { width: 100%; min-height: 96px; margin-top: 12px; padding: 12px; border-radius: 9px; border: 1px solid var(--rule); background: var(--paper); font-family: var(--serif); font-size: 16.5px; line-height: 1.55; resize: vertical; }
.feedback { margin-top: 12px; padding: 12px 14px; border-radius: 9px; background: var(--paper-2); font-size: var(--t-s); }
.feedback .better { margin-top: 8px; font-family: var(--serif); font-size: 16px; color: var(--ink); }
.verdict { font-weight: 600; }
.verdict.got_it { color: var(--good); } .verdict.partly { color: var(--brass); } .verdict.missed { color: var(--again); }
.newwords { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* ---------- 词库 ---------- */
.words-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.words-head h1 { font-size: var(--t-2xl); }
.words-tools { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.words-tools input { height: 36px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--rule); background: var(--sheet); width: min(240px, 100%); font-size: var(--t-s); }
.words-tools select { height: 36px; padding: 0 8px; border-radius: 8px; border: 1px solid var(--rule); background: var(--sheet); font-size: var(--t-s); }
.table-wrap { overflow-x: auto; background: var(--sheet); border: 1px solid var(--rule); border-radius: 12px; }
table.words { width: 100%; border-collapse: collapse; font-size: var(--t-s); }
table.words th { text-align: left; font-weight: 500; font-size: var(--t-xs); color: var(--ink-3); padding: 10px 14px; border-bottom: 1px solid var(--rule); white-space: nowrap; }
table.words td { padding: 11px 14px; border-bottom: 1px solid var(--rule); vertical-align: middle; }
table.words tr:last-child td { border-bottom: 0; }
table.words tbody tr { cursor: pointer; }
table.words tbody tr:hover td { background: var(--paper); }
table.words .w { font-family: var(--serif); font-size: 17px; font-weight: 500; white-space: nowrap; }
table.words .zhc { color: var(--ink-2); max-width: 26em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meter { width: 64px; height: 5px; background: var(--rule); border-radius: 3px; overflow: hidden; display: inline-block; vertical-align: middle; }
.meter i { display: block; height: 100%; background: var(--prussian); }
.meter.strong i { background: var(--brass); }
@media (max-width: 620px) { table.words .hide-s { display: none; } table.words .zhc { max-width: 9em; } }

/* ---------- 抽屉、浮层 ---------- */
.scrim { position: fixed; inset: 0; background: rgba(8, 13, 21, .38); z-index: 40; }
.drawer { position: fixed; z-index: 41; top: 0; right: 0; bottom: 0; width: min(480px, 100%); background: var(--sheet); border-left: 1px solid var(--rule); box-shadow: var(--shadow);
  padding: calc(22px + env(safe-area-inset-top, 0px)) max(26px, env(safe-area-inset-right, 0px)) calc(32px + env(safe-area-inset-bottom, 0px)) 26px; overflow-y: auto; overscroll-behavior: contain; }
@media (max-width: 560px) { .drawer { top: auto; width: 100%; max-height: 90dvh; border-left: 0; border-top: 1px solid var(--rule); border-radius: 18px 18px 0 0; padding: 22px var(--gr) calc(28px + env(safe-area-inset-bottom, 0px)) var(--gl); } }
.drawer .close { position: absolute; right: max(14px, env(safe-area-inset-right, 0px)); top: calc(14px + env(safe-area-inset-top, 0px)); }
@media (max-width: 560px) { .drawer .close { top: 12px; } }
.drawer h2 { font-size: 36px; font-weight: 600; padding-right: 56px; overflow-wrap: anywhere; letter-spacing: -0.02em; line-height: 1.15; }
.drawer h2.plain { font-size: 28px; }
.drawer .block { margin-top: 26px; }
.drawer .block > .label { display: block; margin-bottom: 8px; }
.drawer .block h3 { font-size: var(--t-l); margin-bottom: 10px; }
.drawer .stack { display: flex; flex-direction: column; gap: 12px; }
.drawer .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.ctx-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.ctx-list li { font-family: var(--serif); font-size: 16.5px; line-height: 1.5; padding-left: 12px; border-left: 2px solid var(--rule); }
.ctx-list li mark { background: none; color: var(--prussian); font-weight: 600; }
.ctx-list .meta { display: block; font-family: var(--sans); font-size: 12px; color: var(--ink-3); margin-top: 5px; }
.ctx-list .fix { display: block; font-family: var(--sans); font-size: 13px; color: var(--ink-2); margin-top: 4px; }
.memline { display: flex; gap: 18px; flex-wrap: wrap; font-size: var(--t-s); color: var(--ink-2); }
.memline b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.related { display: flex; flex-wrap: wrap; gap: 6px; }
.bd { font-size: var(--t-s); display: flex; flex-direction: column; gap: 12px; }
.bd .core { font-family: var(--serif); font-size: 17px; color: var(--ink); }
.bd ul { margin: 4px 0 0; padding-left: 18px; }
.bd .ex { font-family: var(--serif); font-size: 16px; }
.bd .ex span { display: block; font-family: var(--sans); font-size: 13px; color: var(--ink-3); }
.codebox { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; line-height: 1.55; background: var(--paper); border: 1px solid var(--rule); border-radius: 8px; padding: 10px 12px; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--ink-2); }
.paircode { font-family: var(--serif); font-size: 40px; letter-spacing: .2em; font-variant-numeric: tabular-nums; color: var(--prussian); }
.seg { display: inline-flex; align-self: flex-start; border: 1px solid var(--rule); border-radius: 9px; overflow: hidden; }
.seg button { border: 0; background: var(--paper); padding: 7px 14px; font-size: var(--t-s); color: var(--ink-2); }
.seg button + button { border-left: 1px solid var(--rule); }
.seg button[aria-pressed="true"] { background: var(--prussian-soft); color: var(--prussian); font-weight: 500; }
.imp-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.imp-list li { border-bottom: 1px solid var(--rule); }
.imp-list label { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 4px 8px; padding: 10px 0; cursor: pointer; align-items: baseline; }
.imp-list input { width: 16px; height: 16px; margin: 0; align-self: center; }
.imp-list .w { font-family: var(--serif); font-size: 17px; font-weight: 500; }
.imp-list .zh { color: var(--ink-2); font-size: var(--t-s); margin-left: 8px; }
.imp-list .s { grid-column: 2; font-family: var(--serif); font-style: italic; font-size: 13.5px; color: var(--ink-3); }
.pop { position: fixed; z-index: 45; width: min(340px, calc(100vw - 32px)); background: var(--sheet); border: 1px solid var(--rule); border-radius: 12px; box-shadow: var(--shadow); padding: 16px; }
.pop .pw { font-family: var(--serif); font-size: var(--t-xl); font-weight: 600; }
.pop .from { font-size: 12px; color: var(--ink-3); margin-top: 2px; }
.pop .zh-lines { font-size: var(--t-s); max-height: 9em; overflow: auto; }
.pop .acts { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.toast { position: fixed; z-index: 90; left: 50%; translate: -50% 0; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 9px; font-size: var(--t-s); box-shadow: var(--shadow); max-width: calc(100vw - 32px); text-align: center; }
@media (max-width: 780px) { .toast { bottom: calc(86px + env(safe-area-inset-bottom, 0px)); } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation-duration: 0s !important; } }

/* ---------- AI 讲解、图片、笔记、AI 学伴 ---------- */
.xp { display: flex; flex-direction: column; gap: 12px; font-size: var(--t-s); }
.xp .xp-zh { font-size: 17px; color: var(--ink); font-weight: 500; }
.xp .xp-en { font-family: var(--serif); font-style: italic; color: var(--ink-2); font-size: 15.5px; }
.xp p { margin: 0; line-height: 1.6; }
.xp .label { display: block; margin-bottom: 4px; }
.xp-ex, .xp-cmp { padding: 8px 0 8px 12px; border-left: 2px solid var(--rule); margin-top: 6px; }
.xp-ex .en, .xp-cmp .en { font-family: var(--serif); font-size: 16px; color: var(--ink); }
.xp-ex .zh, .xp-cmp .zh { color: var(--ink-2); }
.xp-ex .use { color: var(--ink-3); font-size: 12.5px; margin-top: 2px; }
.xp-cmp .chip { margin-bottom: 4px; }
.ai-intro-note { font-size: 13.5px; color: var(--ink-2); margin-bottom: 10px; }
.img-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 6px 0 10px; }
.img-grid figure { margin: 0; }
.img-grid img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; display: block; background: var(--paper-2); }
.img-grid figcaption { font-size: 11px; color: var(--ink-3); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.img-grid.pick { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.img-pick { padding: 0; border: 2px solid transparent; border-radius: 10px; background: none; overflow: hidden; }
.img-pick[aria-pressed="true"] { border-color: var(--prussian); box-shadow: 0 0 0 2px var(--prussian-soft); }
.note-box { width: 100%; min-height: 70px; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--rule); background: var(--paper); font-size: 15px; line-height: 1.55; resize: vertical; }
.coach { padding: 16px 18px; border-radius: 12px; background: var(--sheet); border: 1px solid var(--rule); }
.coach .section-h { margin-bottom: 8px; }
.coach-sum { font-size: 14.5px; line-height: 1.65; color: var(--ink); }
.coach-next { font-size: 14px; line-height: 1.6; color: var(--ink-2); margin-top: 8px; }
.coach-new { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--rule); display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.coach-new b { font-family: var(--serif); font-size: 17px; }