:root{color-scheme:light;--bg:#F4F3ED;--surface:#FCFBF7;--ink:#29302B;--muted:#566159;--line:#D4D9D0;--accent:#385B46;--control-on-accent:#FFFFFF;--notice-bg:#EDF2EA;--tag-bg:#E3ECE3;--tag-ink:#385B46;--danger:#A23D3E}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font: var(--weight-normal) var(--text-body)/var(--leading-ui) var(--font-ui)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}main{max-width:1000px;margin:42px auto;padding:0 24px;min-height:65vh}small,.muted{color:var(--muted);font-size: var(--text-small)}nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}nav form{margin:0}input,textarea,select{max-width:100%;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:9px;font:var(--weight-normal) var(--text-body)/var(--leading-ui) var(--font-ui)}label{display:block;font-weight: var(--weight-medium);margin-top:12px}textarea{width:100%}form p{margin:12px 0}.helptext{display:block;color:var(--muted);font-size: var(--text-meta)}.errorlist{color:var(--danger)}.card{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:9px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.narrow{max-width:470px;margin:45px auto}.notice{background:var(--notice-bg);border-left:3px solid var(--accent);padding:12px 18px;margin-bottom:20px}.row{display:flex;align-items:center;gap:14px;justify-content:space-between}.stack>*{margin-bottom:16px}table{width:100%;border-collapse:collapse}td,th{padding:12px 8px;text-align:left;border-bottom:1px solid var(--line)}.tag{font-size: var(--text-caption);background:var(--tag-bg);color:var(--tag-ink);border-radius:4px;padding:3px 7px}.toc{list-style:none;padding:0}.toc li{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid var(--line)}.danger{color:var(--danger)}img{max-width:100%;height:auto}.reader{max-width:760px;margin:auto}.protected{user-select:none;-webkit-user-select:none}.watermark{position:fixed;inset:0;pointer-events:none;z-index:10;display:grid;grid-template-columns:repeat(3,1fr);align-content:space-around;opacity:.065;overflow:hidden}.watermark span{transform:rotate(-25deg);white-space:nowrap;font: var(--text-small) var(--font-ui)}.reader-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:22px 0;padding:16px;border:1px solid var(--line);border-radius:8px}.reader-tools label{margin:0;font-size: var(--text-meta)}.reader-tools input{width:80px}.comment{padding:18px 0;border-bottom:1px solid var(--line)}dialog{max-width:600px;width:90%;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:10px}dialog::backdrop{background:#0005}pre{white-space:pre-wrap;overflow-wrap:anywhere}.empty{padding:60px 20px;text-align:center;color:var(--muted)}@media(max-width:600px){main{padding:0 18px;margin:25px auto}nav{gap:10px;font-size: var(--text-meta)}.card{padding:18px}.row{flex-wrap:wrap}.watermark{grid-template-columns:repeat(2,1fr)}}@media print{body>*{display:none!important}body:after{content:"本站内容不提供打印。"}}
/* Shared UI typography. Named content styles override the reading font. */
:root {
  --font-ui: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-reading: "Source Han Serif CN VF", serif;
  --font-kai: "LXGW WenKai", var(--font-reading);
  --text-caption: .75rem;
  --text-meta: .8125rem;
  --text-small: .875rem;
  --text-body: 1rem;
  --text-subtitle: 1.125rem;
  --text-section: 1.25rem;
  --text-title: clamp(1.5rem, 3vw, 1.75rem);
  --text-reading-title: clamp(1.5rem, 3.5vw, 2rem);
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-strong: 600;
  --leading-ui: 1.65;
  --leading-heading: 1.4;
  --leading-control: 1.4;
  --leading-note: 1.5;
  --notice-bg: #EDF2EA;
  --tag-bg: #E3ECE3;
  --tag-ink: #385B46;
  --danger: #A23D3E;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-ui);
  font-weight: var(--weight-strong);
  line-height: var(--leading-heading);
}
h1 { font-size: var(--text-title); }
h2 { font-size: var(--text-section); }
h3 { font-size: var(--text-subtitle); }
h4, h5, h6 { font-size: var(--text-body); }
th, strong, b { font-weight: var(--weight-strong); }
.site-nav, .header-actions, .workspace-tabs { font-weight: var(--weight-medium); }
.personal-points dd, .reader-setting-row output { font-variant-numeric: tabular-nums; }
/* Explicit control fonts must still fit nested labels in narrow filter rows. */
form.row > label { min-width: 0; max-width: 100%; }

/* Keep table headings legible inside the existing horizontal scroll containers. */
th{white-space:nowrap}
.paragraph-count{font: var(--text-caption)/var(--leading-note) var(--font-ui);padding:2px 9px;margin:0 0 8px auto;border-radius:12px;display:block;opacity:.8}.paragraph-count[hidden]{display:none}#paragraph-dialog{max-height:85vh;overflow-y:auto}[data-form-status]{font-size: var(--text-meta);color:var(--muted)}



/* Reader and management headers share one visual layout. */
.site-header{display:flex;align-items:center;gap:32px;padding:16px 28px;min-height:79px;border-bottom:1px solid var(--line);background:var(--surface)}
.brand{font: var(--weight-strong) var(--text-subtitle)/1.7 var(--font-ui);color:var(--ink);white-space:nowrap}
.site-wordmark{font-family:var(--font-kai);font-weight:400;letter-spacing:.08em}
.site-nav{flex:1;gap:24px;font-size: var(--text-body)}
.site-nav a{padding:8px 0;border-bottom:2px solid transparent;white-space:nowrap;text-decoration:none}
.site-nav a[aria-current="page"]{border-bottom-color:var(--accent)}
.header-actions{gap:16px;white-space:nowrap;font-size: var(--text-body);margin-left:auto}
.header-actions a{padding:8px 0;border-bottom:2px solid transparent;white-space:nowrap;text-decoration:none}
.header-actions a[aria-current="page"]{border-bottom-color:var(--accent)}
.studio-header~main{margin:28px auto}
@media(max-width:760px){.site-header{flex-wrap:wrap;gap:12px;padding:14px 18px}.brand{font-size: var(--text-body)}.site-nav{order:3;flex-basis:100%;gap:20px}.site-nav,.header-actions{font-size: var(--text-small)}}

/* Shared actions: default primary, outlined secondary, and lightweight text. */
:root {
  --control-radius: 6px;
  --control-height: 42px;
  --control-height-small: 34px;
  --control-font-size: var(--text-small);
  --control-font-size-small: var(--text-meta);
  --control-on-accent: #FFFFFF;
  --control-hover-bg: color-mix(in srgb, var(--accent) 9%, transparent);
  --control-active-bg: color-mix(in srgb, var(--accent) 14%, transparent);
}
:root[data-theme-mode="dark"] .watermark { opacity: .09; }
button, .button, .link, input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .35em;
  min-height: var(--control-height);
  max-width: 100%;
  padding: 9px 16px;
  border: 1px solid var(--accent);
  border-radius: var(--control-radius);
  background: var(--accent);
  color: var(--control-on-accent);
  font: var(--weight-medium) var(--control-font-size)/var(--leading-control) var(--font-ui);
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  overflow-wrap: anywhere;
  cursor: pointer;
}
:where(button:not(:disabled), .button:not([aria-disabled="true"]), input[type="submit"]:not(:disabled)):hover {
  background: color-mix(in srgb, var(--accent) 88%, var(--ink));
}
a.button:hover { text-decoration: none; }
:where(button, .button, input[type="submit"]).secondary {
  border-color: var(--line);
  background: transparent;
  color: var(--accent);
}
:where(button, .button, input[type="submit"]).secondary:hover {
  background: var(--control-hover-bg);
}
.link {
  border-color: transparent;
  background: transparent;
  color: var(--accent);
}
.link:hover { background: var(--control-hover-bg); text-decoration: none; }
.button-small {
  min-height: var(--control-height-small);
  padding: 6px 10px;
  font-size: var(--control-font-size-small);
}
:where(button, .button, input[type="submit"])[aria-pressed="true"],
:where(button, .button, input[type="submit"])[aria-pressed="true"]:hover {
  background: var(--control-active-bg);
  border-color: var(--accent);
  color: var(--accent);
}
:where(button, .button, .link, input[type="submit"]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
:where(button, .button, input[type="submit"]):disabled,
.button[aria-disabled="true"] {
  opacity: .5;
  cursor: not-allowed;
}
/* The explicit HTML hidden state must survive component display overrides. */
:where(button, .button, .link, input[type="submit"])[hidden] { display: none !important; }

/* Short reading summaries and chapter catalogues use their available width. */
.resume-summary { display:flex; align-items:center; gap:20px; padding:18px 20px; }
.resume-info { flex:1; min-width:0; overflow-wrap:anywhere; }
.resume-info h2 { font-size: var(--text-body); margin:0 0 5px; }
.resume-info p { margin:0; }
.resume-book { font-weight: var(--weight-strong); }
.resume-info .muted { display:inline-block; margin-left:8px; }
.resume-actions { display:flex; align-items:center; flex-wrap:wrap; gap:14px; flex-shrink:0; }
.resume-unavailable p { margin:0 0 8px; }
.shelf-book h2 { margin:0; font-size: var(--text-section); }
.shelf-book p { margin:10px 0 0; overflow-wrap:anywhere; }
.catalog-heading h2 { margin:0; font-size: var(--text-section); }
.catalog-volume { margin-top:24px; }
.catalog-volume h3 { margin:0 0 12px; font-size: var(--text-subtitle); }
.catalog-access { margin:16px 0 5px; color:var(--muted); font: var(--weight-medium) var(--text-meta)/1.7 var(--font-ui); }
.catalog-chapters { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:24px; list-style:none; padding:0; margin:0; }
.catalog-chapter { display:flex; align-items:center; gap:10px; min-width:0; border-bottom:1px solid var(--line); }
.catalog-chapter:only-child { grid-column:1/-1; }
.catalog-chapter-main { display:flex; align-items:baseline; flex-wrap:wrap; gap:4px 10px; flex:1; min-width:0; padding:10px 0; }
.catalog-title { display:block; flex:1 1 190px; min-width:0; min-height:34px; font-size: var(--text-body); font-weight: var(--weight-medium); overflow-wrap:anywhere; padding:4px 0; }
.catalog-title:focus-visible { outline:2px solid var(--accent); outline-offset:3px; border-radius:3px; }
.catalog-chapter-meta { display:flex; flex-wrap:wrap; gap:4px 12px; font-size: var(--text-caption); }
.catalog-chapter-meta:empty { display:none; }
.catalog-unavailable .catalog-title { color:var(--muted); }
.catalog-discussion { flex-shrink:0; font-size: var(--text-meta); padding:10px 0 10px 6px; }
.personal-summary { display:flex; align-items:center; flex-wrap:wrap; gap:20px 32px; }
.personal-identity { flex:1; min-width:0; overflow-wrap:anywhere; }
.personal-identity h2 { margin:0; font-size: var(--text-section); }
.personal-identity p { margin:5px 0 0; }
.personal-points { display:flex; flex-wrap:wrap; align-items:flex-start; gap:20px 32px; margin:0; }
.personal-points dt { color:var(--muted); font-size: var(--text-meta); }
.personal-points dd { margin:0; font-size: var(--text-title); line-height:1.4; }
.personal-points small { font-size: var(--text-caption); }
.studio-filters { display:grid; grid-template-columns:minmax(0,2fr) minmax(0,1.3fr) minmax(0,.9fr) minmax(0,.9fr) auto; gap:12px; align-items:end; }
.studio-filters > * { min-width:0; margin:0; }
.studio-filters > p > label { display:grid; gap:4px; margin:0; font-size:var(--text-meta); line-height:var(--leading-control); }
.studio-filters input:not([type="hidden"]), .studio-filters select { width:100%; min-width:0; }
.studio-filter-actions { display:flex; align-items:center; flex-wrap:wrap; gap:8px 12px; }
.studio-reader-search { grid-template-columns:minmax(0,28rem) auto; justify-content:start; }
.studio-reader-search > label { min-width:0; margin:0; font-size:var(--text-meta); line-height:var(--leading-control); }
.studio-reader-search input:not([type="hidden"]) { display:block; margin-top:4px; }
.studio-comment-filters > p:first-of-type { min-width:0; }
.task-summary { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px 24px; }
.task-summary dt { color:var(--muted); font-size: var(--text-meta); }
.task-summary dd { margin:0; overflow-wrap:anywhere; }
.task-error { grid-column:1/-1; }
.action-group { display:flex; align-items:center; flex-wrap:wrap; gap:12px; }
.action-group form { margin:0; }
.theme-options { display:grid; grid-template-columns:repeat(auto-fit,minmax(105px,1fr)); gap:14px; }
.theme-card { display:grid; grid-template-columns:auto 1fr; gap:8px; align-items:center; padding:12px; margin:0; border:1px solid var(--line); border-radius:8px; cursor:pointer; font-size:var(--text-small); }
.theme-card-preview { grid-column:1/-1; display:flex; align-items:center; justify-content:space-between; padding:16px 10px; border:1px solid; border-radius:5px; }
.theme-card-mark { width:20px; height:20px; border-radius:50%; }
.theme-card input { margin:0; accent-color:var(--accent); }
.theme-card:has(input:checked) { border-color:var(--accent); box-shadow:0 0 0 1px var(--accent); }
.theme-card:has(input:focus-visible) { outline:2px solid var(--accent); outline-offset:3px; }
[data-theme-picker][hidden] { display:none; }
.appearance-picker { margin:0 0 16px; min-width:0; }
.appearance-picker legend { font-size:var(--text-section); font-weight:var(--weight-strong); padding:0 8px; }

@media(max-width:650px) {
  .catalog-chapters { grid-template-columns:minmax(0,1fr); }
  .catalog-title { min-height:42px; padding:8px 0; }
  .resume-summary { flex-wrap:wrap; gap:12px; padding:16px; }
  .resume-info { flex-basis:100%; }
  .resume-info .muted { margin-left:0; }
  .resume-actions { flex-shrink:1; }
  .personal-identity { flex-basis:100%; }
}
@media(max-width:960px) {
  .studio-comment-filters { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .studio-comment-filters > p:first-of-type, .studio-comment-filters > .studio-filter-actions { grid-column:1/-1; }
}
@media(max-width:650px) {
  .studio-comment-filters { grid-template-columns:minmax(0,1fr); }
  .studio-comment-filters > p:first-of-type, .studio-comment-filters > .studio-filter-actions { grid-column:auto; }
  .studio-reader-search { grid-template-columns:minmax(0,1fr) auto; }
}

/* A centered wordmark replaces navigation on the focused sign-in page. */
.login-shell { max-width:420px; margin:clamp(40px,10vh,96px) auto; }
.login-wordmark { margin:0 0 28px; text-align:center; font-size:clamp(2.25rem,6vw,3rem); line-height:1.5; }
.login-card { margin:0; padding:30px; }
.login-heading { margin:0 0 22px; }
.login-heading h2 { margin:0; font-size:var(--text-section); }
.login-heading p { margin:8px 0 0; color:var(--muted); font-size:var(--text-small); }
.login-form { display:grid; gap:14px; min-width:0; }
.login-field { display:grid; gap:6px; min-width:0; }
.login-field label { margin:0; font-size:var(--text-small); }
.login-field input { width:100%; min-width:0; }
.login-form .errorlist { margin:0; padding-left:1.25em; font-size:var(--text-meta); line-height:1.5; overflow-wrap:anywhere; }
.login-form button { width:100%; margin-top:4px; }
.login-help { margin:22px 0 0; padding-top:15px; border-top:1px solid var(--line); color:var(--muted); font-size:var(--text-small); }
.login-help p { margin:0; line-height:1.7; overflow-wrap:anywhere; }
@media(max-width:650px) {
  .login-shell { margin:clamp(32px,7vh,56px) auto; }
  .login-wordmark { margin-bottom:22px; }
  .login-card { padding:22px 18px; }
}

/* Task pages share context, section columns and action groups. Reading stays separate. */
.page-heading { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px 24px; margin-bottom:20px; }
.page-heading h1, .page-heading h2 { margin:0; min-width:0; overflow-wrap:anywhere; }
.page-context { margin:0 0 8px; color:var(--muted); font-size:var(--text-small); overflow-wrap:anywhere; }
.section-list { display:grid; gap:0; min-width:0; }
.section-list > * { margin-block:0; }
.settings-section { display:grid; grid-template-columns:180px minmax(0,1fr); gap:20px 28px; padding:24px 0; border-top:1px solid var(--line); min-width:0; }
.settings-intro, .settings-content { min-width:0; }
.settings-intro h2 { margin:0; font-size:var(--text-subtitle); }
.settings-intro p { margin:6px 0 0; color:var(--muted); font-size:var(--text-small); overflow-wrap:anywhere; }
.settings-content { display:grid; align-content:start; gap:16px; }
.settings-content > * { min-width:0; margin-block:0; }
.settings-content > :is(button, .button, .link) { justify-self:start; }
.settings-content.action-group { display:flex; gap:12px; }
.settings-content .studio-form-actions { display:flex; flex-wrap:wrap; align-items:center; gap:12px; }
.data-summary { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px 24px; margin:0; }
.data-summary > div { min-width:0; }
.data-summary dt { color:var(--muted); font-size:var(--text-small); font-weight:var(--weight-normal); }
.data-summary dd { margin:4px 0 0; overflow-wrap:anywhere; }
.table-scroll { max-width:100%; overflow-x:auto; }
.table-scroll table { font-size:var(--text-small); }
.table-scroll td { overflow-wrap:anywhere; }
.table-scroll :is(.button, button) { white-space:normal; }
.record-list { display:grid; gap:0; }
.record-row { display:flex; align-items:baseline; flex-wrap:wrap; gap:6px 24px; padding:14px 0; border-bottom:1px solid var(--line); overflow-wrap:anywhere; }
.record-row > * { margin:0; min-width:0; }
.record-row > div { flex:1; }
.record-row p { margin:4px 0 0; color:var(--muted); font-size:var(--text-small); }
.record-row > :is(time, small) { margin-left:auto; font-size:var(--text-small); color:var(--muted); }
.form-page { max-width:900px; margin:0 auto; min-width:0; }
.confirmation-page { max-width:900px; margin:0 auto; min-width:0; }
.source-comparison { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px; align-items:start; }
.source-pane { min-width:0; }
.source-pane :is(h2,h3) { margin:0 0 10px; font-size:var(--text-subtitle); }
.source-pane > .row { align-items:baseline; gap:10px; flex-wrap:wrap; }
.source-pane pre { max-height:32rem; overflow:auto; margin:0; padding:14px; border:1px solid var(--line); border-radius:6px; background:var(--surface); font-size:var(--text-small); }
.studio-book-list { border-top:1px solid var(--line); }
.studio-book-row { display:flex; flex-wrap:wrap; gap:12px 24px; align-items:center; padding:14px 0; border-bottom:1px solid var(--line); }
.studio-book-main, .studio-book-task { min-width:0; overflow-wrap:anywhere; }
.studio-book-main { display:flex; align-items:center; flex-wrap:wrap; gap:8px 12px; flex:1 1 16rem; }
.studio-book-main h2 { margin:0; font-size:var(--text-subtitle); }
.studio-book-status { display:flex; align-items:center; flex-wrap:wrap; gap:6px; font-size:var(--text-small); }
.studio-book-task { display:flex; align-items:center; flex-wrap:wrap; gap:8px 12px; margin-left:auto; max-width:55%; }
@media(max-width:720px) {
  .studio-book-task { flex-basis:100%; max-width:none; margin-left:0; }
  .settings-section { grid-template-columns:minmax(0,1fr); gap:16px; padding:20px 0; }
  .source-comparison { grid-template-columns:minmax(0,1fr); }
}
@media(max-width:480px) {
  .data-summary { grid-template-columns:minmax(0,1fr); }
  .record-row > :is(time, small) { flex-basis:100%; margin-left:0; }
}

/* Unlock B: one horizontal points summary, followed by an explicit confirmation. */
.unlock-page { max-width:980px; margin:0 auto; }
.unlock-offer { min-width:0; padding:24px 0; border-block:1px solid var(--line); }
.unlock-scope { margin:0 0 18px; }
.unlock-summary { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); margin:0 0 12px; border:1px solid var(--line); border-radius:6px; background:var(--surface); }
.unlock-summary > div { min-width:0; padding:16px; }
.unlock-summary > div + div { border-left:1px solid var(--line); }
.unlock-summary dt { color:var(--muted); font-size:var(--text-small); margin-bottom:6px; }
.unlock-summary dd { margin:0; font-size:clamp(1.125rem,3.5vw,1.625rem); font-weight:var(--weight-strong); font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
.unlock-summary small { font-size:var(--text-small); font-weight:var(--weight-normal); }
.unlock-offer > p.muted { margin:12px 0 0; }
.unlock-footer { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px 24px; margin-top:20px; }
.unlock-points { font-size:var(--text-small); }
@media(max-width:480px) {
  .unlock-summary > div { padding:12px 10px; }
  .unlock-summary dt { font-size:var(--text-meta); }
  .unlock-footer .action-group { order:-1; flex-basis:100%; }
}

/* Keep chapter context from displacing the comment excerpt in management tables. */
.studio-comments-table { table-layout:fixed; min-width:880px; }
.studio-comments-table th:nth-child(1) { width:36px; }
.studio-comments-table th:nth-child(2) { width:104px; }
.studio-comments-table th:nth-child(3) { width:96px; }
.studio-comments-table th:nth-child(4) { width:20%; }
.studio-comments-table th:nth-child(5) { width:72px; }
.studio-comments-table th:nth-child(7) { width:80px; }
.studio-comments-table th:nth-child(8) { width:48px; }
.studio-comments-table .tag { display:inline-block; white-space:nowrap; }
.studio-comment-context { display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.studio-comment-excerpt { display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }