:root {
  --ink: #17211f;
  --muted: #61706c;
  --subtle: #8b9894;
  --line: #dfe7e4;
  --surface: #ffffff;
  --canvas: #f5f7f6;
  --primary: #0f766e;
  --primary-dark: #0b5e58;
  --primary-soft: #e4f3f1;
  --amber: #b45309;
  --amber-soft: #fff6e7;
  --danger: #b42318;
  --danger-soft: #fff0ee;
  --blue: #2563a6;
  --blue-soft: #eaf2fb;
  --shadow: 0 10px 30px rgba(24, 43, 38, 0.07);
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  letter-spacing: 0;
}
button, input, textarea, select { font: inherit; letter-spacing: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
svg { width: 18px; height: 18px; stroke-width: 1.8; flex: 0 0 auto; }

.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 238px;
  padding: 24px 16px 18px;
  background: #152824;
  color: #dfeae7;
  display: flex;
  flex-direction: column;
  z-index: 30;
}
.brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 8px; display: grid; place-items: center;
  background: #e7b65c; color: #18312b; font-weight: 800; font-size: 18px;
}
.brand > span:last-child { display: grid; gap: 2px; }
.brand strong { font-size: 15px; color: #fff; }
.brand small { font-size: 11px; color: #91a8a2; }
.main-nav { display: grid; gap: 6px; margin-top: 42px; }
.main-nav a {
  min-height: 43px; display: flex; align-items: center; gap: 12px;
  padding: 0 13px; color: #aec0bc; border-radius: 6px;
  transition: color 180ms ease, background 180ms ease;
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.07); }
.main-nav a.active { color: #fff; background: #255147; }
.sidebar-user {
  margin-top: auto; border-top: 1px solid rgba(255,255,255,.1); padding-top: 17px;
  display: flex; align-items: center; gap: 10px;
}
.avatar {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: #dcece8; color: #135e56; font-weight: 700;
}
.avatar.small { width: 30px; height: 30px; font-size: 12px; }
.user-copy { display: grid; gap: 2px; min-width: 0; flex: 1; }
.user-copy strong { color: #fff; font-size: 13px; overflow: hidden; text-overflow: ellipsis; }
.user-copy small { color: #91a8a2; font-size: 11px; }
.sidebar-user form { margin: 0; }
.sidebar .icon-button { color: #91a8a2; }

.page-shell { min-height: 100vh; margin-left: 238px; }
.page-content { width: min(1180px, 100%); margin: 0 auto; padding: 42px 38px 60px; }
.mobile-header { display: none; }
.page-heading {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
  margin-bottom: 30px;
}
.page-heading h1 { margin: 5px 0 7px; font-size: 28px; line-height: 1.3; letter-spacing: 0; }
.page-heading p { margin: 0; color: var(--muted); line-height: 1.65; }
.eyebrow { color: var(--primary); font-size: 11px; font-weight: 800; text-transform: uppercase; }

.button {
  min-height: 40px; padding: 0 16px; border: 1px solid transparent; border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 700; cursor: pointer; transition: background 180ms ease, border 180ms ease, color 180ms ease;
  white-space: nowrap;
}
.button.primary { background: var(--primary); color: #fff; }
.button.primary:hover { background: var(--primary-dark); }
.button.secondary { background: #fff; border-color: #cfdad7; color: #29433d; }
.button.secondary:hover, .button.ghost:hover { background: #edf3f1; border-color: #b9cbc6; }
.button.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.button.wide { width: 100%; }
.button.small { min-height: 34px; padding: 0 11px; font-size: 12px; }
.button:focus-visible, .icon-button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid rgba(15,118,110,.22); outline-offset: 2px;
}
.button:disabled { opacity: .68; cursor: wait; }
.button.loading svg { animation: spin 1s linear infinite; }
.icon-button {
  width: 36px; height: 36px; border: 0; border-radius: 6px; background: transparent;
  color: var(--muted); display: grid; place-items: center; cursor: pointer;
}
.icon-button:hover { background: rgba(15,118,110,.1); color: var(--primary); }

.alert {
  padding: 11px 13px; border: 1px solid; border-radius: 6px; display: flex; align-items: center;
  gap: 8px; margin-bottom: 18px; line-height: 1.5;
}
.alert.success { background: var(--primary-soft); border-color: #badcd6; color: #0c625b; }
.alert.danger { background: var(--danger-soft); border-color: #f0c3bd; color: var(--danger); }
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 34px; }
.stat {
  min-height: 104px; padding: 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 7px; display: flex; align-items: center; gap: 14px;
}
.stat-icon { width: 42px; height: 42px; border-radius: 7px; display: grid; place-items: center; }
.stat-icon.teal { background: var(--primary-soft); color: var(--primary); }
.stat-icon.green { background: #eaf5e8; color: #3d7b36; }
.stat-icon.amber { background: var(--amber-soft); color: var(--amber); }
.stat-icon.blue { background: var(--blue-soft); color: var(--blue); }
.stat div { display: grid; gap: 2px; }
.stat strong { font-size: 25px; line-height: 1; }
.stat span:last-child { color: var(--muted); font-size: 12px; }

.section-block { background: var(--surface); border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.section-heading {
  min-height: 76px; padding: 17px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.section-heading h2, .form-section h2, .variant-header h2 { margin: 0; font-size: 16px; }
.section-heading p, .form-section-heading p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.text-link { display: inline-flex; align-items: center; gap: 5px; color: var(--primary); font-weight: 700; font-size: 12px; }
.text-link svg { width: 15px; }
.draft-list { display: grid; }
.draft-row {
  min-height: 72px; display: grid; align-items: center;
  grid-template-columns: 36px minmax(0, 1fr) auto auto 20px; gap: 13px;
  padding: 12px 18px; border-bottom: 1px solid var(--line);
  transition: background 160ms ease;
}
.draft-row:last-child { border-bottom: 0; }
.draft-row:hover { background: #f7faf9; }
.draft-row.expanded { grid-template-columns: 36px minmax(0, 1fr) auto auto 20px; }
.track-badge {
  width: 30px; height: 30px; border-radius: 6px; display: inline-grid; place-items: center;
  font-weight: 800; font-size: 12px; flex: 0 0 auto;
}
.track-a { background: #f7e6c5; color: #7b4b00; }
.track-b { background: #dff0ed; color: #0f655d; }
.draft-main { min-width: 0; display: grid; gap: 5px; }
.draft-main strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.draft-main small, .draft-meta small { color: var(--muted); }
.draft-meta { display: grid; gap: 6px; justify-items: end; }
.status {
  display: inline-flex; width: max-content; align-items: center; min-height: 24px; padding: 0 8px;
  border-radius: 4px; font-size: 11px; font-weight: 700;
}
.status.ready { background: #e8f4ec; color: #367143; }
.status.failed { background: var(--danger-soft); color: var(--danger); }
.status.generating { background: var(--blue-soft); color: var(--blue); }
.warning-count { color: var(--amber); background: var(--amber-soft); border-radius: 4px; padding: 5px 7px; font-size: 11px; }
.row-arrow { color: #9ba7a4; width: 16px; }
.empty-state { padding: 54px 20px; text-align: center; display: grid; justify-items: center; }
.empty-icon { width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.empty-state h3 { margin: 16px 0 5px; font-size: 16px; }
.empty-state p { margin: 0 0 18px; color: var(--muted); }

.editor-layout { display: grid; gap: 16px; }
.form-section { background: #fff; border: 1px solid var(--line); border-radius: 7px; padding: 23px; }
.form-section-heading { display: flex; gap: 13px; margin-bottom: 22px; }
.form-section-heading > span {
  width: 29px; height: 29px; border-radius: 50%; display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary); font-size: 11px; font-weight: 800;
}
.segmented-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.choice-card {
  position: relative; min-height: 76px; display: flex; align-items: center; gap: 12px;
  padding: 14px; border: 1px solid var(--line); border-radius: 7px; cursor: pointer;
}
.choice-card input {
  position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; pointer-events: none;
}
.choice-card > span:nth-of-type(2) { display: grid; gap: 4px; }
.choice-card small { color: var(--muted); }
.choice-card > svg { margin-left: auto; color: #c4cfcc; }
.choice-card:has(input:checked) { border-color: var(--primary); background: #f5fbfa; box-shadow: 0 0 0 2px rgba(15,118,110,.08); }
.choice-card:has(input:checked) > svg { color: var(--primary); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field > span { color: #33443f; font-size: 12px; font-weight: 700; }
.field > span small, .field > small { color: var(--subtle); font-weight: 400; }
.field b { color: var(--danger); }
input, textarea, select {
  width: 100%; border: 1px solid #cad6d2; border-radius: 6px; color: var(--ink);
  background: #fff; transition: border 160ms ease, box-shadow 160ms ease;
}
input, select { height: 42px; padding: 0 11px; }
input[type="file"] {
  height: 42px; padding: 0; overflow: hidden; line-height: 42px;
}
input[type="file"]::file-selector-button {
  height: 100%; margin: 0 12px 0 0; padding: 0 14px;
  border: 0; border-right: 1px solid var(--line); background: rgba(255,255,255,.68);
  color: var(--ink); cursor: pointer;
}
textarea { padding: 11px; resize: vertical; min-height: 88px; line-height: 1.7; }
input:hover, textarea:hover, select:hover { border-color: #9fb3ad; }
input:focus, textarea:focus, select:focus { border-color: var(--primary); outline: 0; box-shadow: 0 0 0 3px rgba(15,118,110,.1); }
::placeholder { color: #9aa6a3; }
.variant-selector { display: flex; gap: 10px; }
.variant-selector label { cursor: pointer; }
.variant-selector input {
  position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; pointer-events: none;
}
.variant-selector span {
  min-width: 110px; height: 40px; padding: 0 14px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 6px; background: #fff; font-weight: 700;
}
.variant-selector input:checked + span { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; padding: 8px 0 0; }

.filter-bar {
  display: flex; align-items: end; gap: 10px; background: #fff; border: 1px solid var(--line);
  border-radius: 7px; padding: 13px; margin-bottom: 14px;
}
.filter-bar label { display: grid; gap: 5px; }
.filter-bar label > span { color: var(--muted); font-size: 11px; font-weight: 700; }
.filter-bar select { width: 160px; height: 38px; }
.breadcrumb { display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 12px; margin-bottom: 16px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb svg { width: 14px; }
.detail-heading { align-items: center; }
.detail-heading h1 { font-size: 23px; max-width: 800px; }
.heading-labels { display: flex; align-items: center; gap: 8px; }
.source-summary {
  background: #fff; border: 1px solid var(--line); border-radius: 7px; padding: 16px 19px;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-bottom: 16px;
}
.source-summary span, .block-label { color: var(--muted); font-size: 11px; font-weight: 800; }
.source-summary p { margin: 6px 0 0; line-height: 1.6; }
.failure-panel {
  margin-bottom: 16px; padding: 14px; background: #fff; border: 1px solid #f0c3bd;
  border-radius: 7px; display: flex; align-items: center; justify-content: space-between; gap: 14px;
}
.failure-panel .alert { margin: 0; flex: 1; }
.variant-stack { display: grid; gap: 17px; }
.variant-card { background: #fff; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.variant-header { min-height: 62px; padding: 13px 17px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.variant-header > div { display: flex; align-items: center; gap: 9px; }
.variant-number { color: var(--primary); font-weight: 800; font-size: 11px; }
.variant-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .75fr); }
.copy-block { padding: 22px; border-right: 1px solid var(--line); }
.moment-copy { margin-top: 12px; white-space: pre-wrap; line-height: 1.9; font-size: 15px; }
.sub-copy { margin-top: 20px; padding: 12px 14px; border-left: 3px solid var(--primary); background: #f4f8f7; }
.sub-copy strong { font-size: 11px; color: var(--primary); }
.sub-copy p { margin: 5px 0 0; white-space: pre-wrap; line-height: 1.6; }
.review-panel { background: #fafcfb; padding: 7px 16px; }
.review-item { padding: 13px 0; border-bottom: 1px solid var(--line); }
.review-item:last-child { border-bottom: 0; }
.review-item > span { display: flex; align-items: center; gap: 7px; font-size: 11px; color: var(--muted); font-weight: 800; }
.review-item p { margin: 7px 0 0; line-height: 1.55; font-size: 12px; }
.review-item.warning > span, .review-item.warning p { color: var(--amber); }
.review-item.passed > span { color: #397646; }
.revision-form { border-top: 1px solid var(--line); padding: 18px 22px; background: #fcfdfd; }
.revision-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 12px; }
.revision-actions small { color: var(--muted); }

.member-table-wrap { overflow-x: auto; }
.member-table { width: 100%; min-width: 760px; border-collapse: collapse; }
.member-table th { height: 44px; padding: 0 17px; color: var(--muted); font-size: 11px; text-align: left; background: #f8faf9; border-bottom: 1px solid var(--line); }
.member-table td { height: 68px; padding: 10px 17px; border-bottom: 1px solid var(--line); }
.member-table tr:last-child td { border-bottom: 0; }
.member-cell { display: flex; align-items: center; gap: 10px; }
.member-cell > span:last-child { display: grid; gap: 3px; }
.member-cell small { color: var(--muted); }
.role-badge { background: #eef2f1; color: #475a55; padding: 5px 8px; border-radius: 4px; font-size: 11px; }
.table-actions { display: flex; justify-content: flex-end; align-items: center; gap: 3px; }
.table-actions form { margin: 0; }
.dialog {
  width: min(460px, calc(100vw - 32px)); border: 0; border-radius: 8px; padding: 0;
  box-shadow: 0 20px 70px rgba(20,39,34,.22);
}
.dialog::backdrop { background: rgba(16,31,27,.52); }
.dialog-form { padding: 22px; display: grid; gap: 16px; }
.dialog-form header, .dialog-form footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.dialog-form h2 { margin: 4px 0 0; font-size: 19px; }
.dialog-form footer { justify-content: flex-end; padding-top: 4px; }
.form-note, .muted { margin: 0; color: var(--muted); line-height: 1.6; }
.error-state { min-height: 70vh; display: grid; place-content: center; justify-items: center; text-align: center; }
.error-state h1 { margin: 12px 0 6px; font-size: 26px; }
.error-state p { margin: 0 0 20px; color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.auth-body { background: #edf2f0; min-height: 100vh; }
.auth-layout { min-height: 100vh; display: grid; grid-template-columns: minmax(420px, 1.08fr) minmax(430px, .92fr); }
.auth-intro {
  position: relative; overflow: hidden; padding: clamp(42px, 7vw, 90px);
  background: #17322c; color: #fff; display: flex; flex-direction: column; justify-content: center;
}
.auth-intro::after {
  content: ""; position: absolute; width: 420px; height: 420px; right: -210px; bottom: -210px;
  border: 70px solid rgba(231,182,92,.11); border-radius: 50%;
}
.auth-brand { position: absolute; top: 42px; left: clamp(42px, 7vw, 90px); }
.auth-intro h1 { margin: 0 0 18px; font-size: clamp(36px, 4vw, 58px); line-height: 1.15; max-width: 720px; letter-spacing: 0; }
.auth-intro > p { color: #b7cac5; font-size: 16px; line-height: 1.8; max-width: 560px; }
.auth-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.auth-points span { border: 1px solid rgba(255,255,255,.16); color: #d6e4e0; border-radius: 5px; padding: 8px 10px; font-size: 12px; }
.auth-panel { padding: 40px; display: grid; place-items: center; }
.auth-form { width: min(390px, 100%); display: grid; gap: 19px; padding: 32px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
.auth-form h2 { margin: 5px 0; font-size: 25px; }
.auth-layout.compact .auth-intro h1 { font-size: clamp(34px, 4vw, 50px); }

.nav-backdrop { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (max-width: 1024px) {
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .variant-grid { grid-template-columns: 1fr; }
  .copy-block { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 768px) {
  .sidebar {
    width: min(280px, 86vw); transform: translateX(-102%); transition: transform 220ms ease;
  }
  .sidebar.open { transform: translateX(0); }
  .nav-backdrop { position: fixed; inset: 0; z-index: 20; background: rgba(11,28,24,.48); }
  .nav-backdrop.visible { display: block; }
  .page-shell { margin-left: 0; }
  .mobile-header {
    height: 58px; padding: 0 16px; display: flex; align-items: center; justify-content: space-between;
    background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 15;
  }
  .page-content { padding: 26px 16px 44px; }
  .page-heading { align-items: flex-start; }
  .page-heading h1 { font-size: 23px; }
  .stat-grid { gap: 10px; }
  .draft-row, .draft-row.expanded {
    grid-template-columns: 34px minmax(0,1fr) 18px;
  }
  .draft-row > .status, .draft-row > .warning-count, .draft-row > .draft-meta { display: none; }
  .segmented-cards, .form-grid, .source-summary { grid-template-columns: 1fr; }
  .variant-selector { display: grid; grid-template-columns: repeat(3, 1fr); }
  .variant-selector span { min-width: 0; padding: 0 8px; }
  .filter-bar { display: grid; grid-template-columns: 1fr 1fr; }
  .filter-bar label, .filter-bar select { width: 100%; }
  .filter-bar .button { grid-column: 1 / -1; }
  .auth-layout { grid-template-columns: 1fr; }
  .auth-intro { min-height: 310px; padding: 95px 28px 36px; justify-content: flex-end; }
  .auth-brand { top: 28px; left: 28px; }
  .auth-intro h1 { font-size: 34px; }
  .auth-panel { padding: 24px 16px 40px; }
  .auth-form { padding: 25px 20px; }
}

@media (max-width: 480px) {
  .page-heading { display: grid; }
  .page-heading > .button { width: 100%; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat { min-height: 90px; padding: 13px; gap: 10px; }
  .stat-icon { width: 35px; height: 35px; }
  .stat strong { font-size: 21px; }
  .section-heading { align-items: flex-start; }
  .text-link { margin-top: 2px; }
  .form-section { padding: 18px 15px; }
  .segmented-cards { gap: 9px; }
  .choice-card { min-height: 70px; padding: 11px; }
  .choice-card small { font-size: 11px; }
  .form-actions { display: grid; grid-template-columns: 1fr 1.6fr; }
  .detail-heading .button { display: none; }
  .variant-header { padding: 12px 14px; }
  .copy-block, .revision-form { padding: 17px 15px; }
  .review-panel { padding: 6px 15px; }
  .revision-actions { align-items: flex-start; flex-direction: column; }
  .revision-actions .button { width: 100%; }
  .failure-panel { align-items: stretch; flex-direction: column; }
  .failure-panel .button { width: 100%; }
  .auth-points { display: none; }
}

/* 选题库与多人 IP */
.speaker-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.choice-card.is-disabled { opacity: .55; cursor: not-allowed; }
.choice-card em { display: inline-flex; margin-top: 6px; color: var(--muted); font-size: 11px; font-style: normal; }
.empty-inline { padding: 18px; color: var(--muted); text-align: center; }
.topic-filter { grid-template-columns: minmax(220px, 1.5fr) minmax(150px, .8fr) minmax(140px, .7fr) auto; }
.topic-filter input, .topic-filter select { min-height: 42px; }
.topic-library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 18px; }
.topic-library-card { display: flex; min-height: 250px; padding: 20px; flex-direction: column; gap: 13px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card, 12px); }
.topic-library-card h2 { margin: 0; font-size: 18px; line-height: 1.45; }
.topic-library-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.topic-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.topic-card-top small { color: var(--muted); }
.category-badge { display: inline-flex; padding: 5px 9px; color: var(--primary-dark); background: var(--primary-soft); border-radius: 999px; font-size: 12px; font-weight: 700; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-list span { padding: 4px 7px; color: var(--muted); background: var(--canvas); border-radius: 7px; font-size: 11px; }
.card-actions { display: flex; gap: 8px; margin-top: auto; }

@media (max-width: 1050px) {
  .topic-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .speaker-grid, .topic-library-grid { grid-template-columns: 1fr; }
  .topic-filter { grid-template-columns: 1fr; }
}