:root {
  --bg: #fbfbfa;
  --panel: #ffffff;
  --ink: #1f2933;
  --ink-soft: #55606b;
  --muted: #8a929b;
  --line: #e6e8ea;
  --line-soft: #f0f1f2;
  --accent: #2f6f4e;
  --accent-soft: #eef5f0;
  --warn: #9a5b1a;
  --warn-soft: #fdf4e7;
  --danger: #a4342c;
  --danger-soft: #fbeeed;
  --info-soft: #eef2f7;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.6 -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-weight: 600; margin: 0; line-height: 1.35; }
h1 { font-size: 21px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }
h4 { font-size: 14px; }
p { margin: 0 0 10px; }
a { color: var(--accent); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand-title { font-size: 15px; font-weight: 600; }
.brand-sub { font-size: 12px; color: var(--muted); }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.container { max-width: 1080px; margin: 0 auto; padding: 28px 24px 72px; }

.hidden { display: none !important; }
.muted { color: var(--muted); }
.soft { color: var(--ink-soft); }
.small { font-size: 13px; }
.tiny { font-size: 12px; }
.row { display: flex; gap: 12px; align-items: center; }
.row-between { display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.stack > * + * { margin-top: 8px; }
.grow { flex: 1 1 auto; }

section.panel, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.panel + .panel, .panel + section, section + section { margin-top: 18px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.section-note { font-size: 13px; color: var(--muted); }

.page-head { margin-bottom: 20px; }
.page-head h1 { margin-bottom: 4px; }

.progress-bar { height: 6px; background: var(--line-soft); border-radius: 99px; overflow: hidden; }
.progress-bar > span { display: block; height: 100%; background: var(--accent); }

.meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin: 16px 0; }
.meta-item .meta-label { font-size: 11px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.meta-item .meta-value { font-size: 14px; }

.task-list { border-top: 1px solid var(--line-soft); }
.task-row {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 4px; border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 92px;
}
.task-row:last-child { border-bottom: 0; }
.task-index { width: 22px; color: var(--muted); font-size: 13px; padding-top: 2px; }
.task-main { flex: 1 1 auto; min-width: 0; }
.task-title { font-size: 14.5px; }
.official-title { font-size: 15px; }
.task-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }

.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); margin-top: 7px; flex-shrink: 0; }
.status-dot.done { background: var(--accent); }

.chip {
  display: inline-block; padding: 2px 8px; border-radius: 99px;
  font-size: 11.5px; line-height: 1.7; white-space: nowrap;
  background: var(--line-soft); color: var(--ink-soft);
}
.chip.done { background: var(--accent-soft); color: var(--accent); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.danger { background: var(--danger-soft); color: var(--danger); }
.chip.info { background: var(--info-soft); color: #3c5a7a; }

button { font: inherit; cursor: pointer; }
.btn {
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  padding: 7px 14px; border-radius: 6px; font-size: 13.5px;
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.subtle { background: transparent; color: var(--ink-soft); border-color: var(--line); }
.btn.small { padding: 5px 10px; font-size: 12.5px; }
.btn.cta { padding: 10px 20px; font-size: 14px; box-shadow: 0 4px 10px rgba(47, 111, 78, .18); }
.text-btn { border: 0; background: transparent; color: var(--ink-soft); font-size: 13px; padding: 4px 6px; }
.text-btn:hover { color: var(--ink); }

input[type="text"], input[type="password"], input[type="date"], textarea, select {
  width: 100%; font: inherit; color: var(--ink);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 10px; background: #fff;
}
textarea { min-height: 82px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
label.field { display: block; margin-bottom: 12px; }
label.field > .field-label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 5px; }

.user-chip { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-soft); }

.notice {
  border-left: 3px solid var(--line); background: #f7f8f8;
  padding: 10px 12px; border-radius: 0 6px 6px 0; font-size: 13px; color: var(--ink-soft);
}
.notice.warn { border-color: #d8a75f; background: var(--warn-soft); color: var(--warn); }
.notice.placeholder { border-color: #b9c2cc; background: #f6f7f9; }
.notice.accent { border-color: var(--accent); background: var(--accent-soft); color: #235c3f; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table-wrap { overflow-x: auto; }
.table-wrap table { min-width: 940px; }
th { text-align: left; font-weight: 600; font-size: 11.5px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 11px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: #fafbfb; }

.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.filter-bar { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 14px; }
.tab { border: 0; background: transparent; padding: 9px 14px; color: var(--muted); font-size: 14px; border-bottom: 2px solid transparent; }
.tab.active { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }

.queue-item { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 4px; border-bottom: 1px solid var(--line-soft); }
.queue-item:last-child { border-bottom: 0; }

.workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 18px; align-items: start; }
@media (max-width: 900px) { .workspace { grid-template-columns: 1fr; } }

.evidence-block { border-top: 1px solid var(--line-soft); padding-top: 12px; margin-top: 12px; }
.evidence-block:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.evidence-text { white-space: pre-wrap; font-size: 13.5px; color: var(--ink); background: #fafbfb; border-radius: 6px; padding: 10px 12px; margin-top: 6px; }
.timeline-item { padding: 9px 0; border-bottom: 1px solid var(--line-soft); }
.timeline-item:last-child { border-bottom: 0; }
.feedback-item { padding: 14px 0; border-top: 1px solid var(--line-soft); }
.feedback-item:first-of-type { border-top: 0; padding-top: 0; }
.follow-up-status { margin-top: 10px; }

.question-block { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; background: #fff; }
.question-block h4 { margin-bottom: 2px; }
.question-zh { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 8px; }
.question-prompt { font-size: 13px; color: var(--muted); background: #fafbfb; border-radius: 6px; padding: 9px 11px; margin-bottom: 10px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.divider { height: 1px; background: var(--line-soft); margin: 16px 0; }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: #24313c; color: #fff; padding: 9px 16px; border-radius: 6px;
  font-size: 13.5px; max-width: 80vw;
}
.toast.error { background: #8f2f28; }

.login-wrap { max-width: 420px; margin: 40px auto; }
.login-hint { font-size: 12.5px; color: var(--muted); line-height: 1.8; margin-top: 14px; }

.outline-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.outline-item { display: block; border: 1px solid var(--line-soft); border-radius: 6px; padding: 9px 11px; font-size: 13px; color: var(--muted); text-decoration: none; }
a.outline-item:hover { border-color: var(--accent); color: var(--ink); background: #fafbfb; }
.outline-item.current { border-color: var(--accent); color: var(--ink); background: var(--accent-soft); }

.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 14px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

.empty { padding: 22px 4px; color: var(--muted); font-size: 13.5px; }

.kicker {
  font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 3px; font-weight: 600;
}

.practice-progress { margin: 12px 0 0; }
.practice-progress-row {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 8px 0; border-bottom: 1px solid var(--line-soft); font-size: 13.5px;
}
.practice-progress-row:last-child { border-bottom: 0; }

.practice-block { border-top: 1px solid var(--line-soft); margin-top: 18px; padding-top: 16px; scroll-margin-top: 92px; }
.practice-block:first-of-type { border-top: 0; margin-top: 0; padding-top: 4px; }

.practice-record {
  background: #fafbfb; border: 1px solid var(--line-soft);
  border-radius: 6px; padding: 12px 14px; margin-top: 10px;
}
.practice-record-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.practice-record .evidence-text { background: #fff; border: 1px solid var(--line-soft); margin-top: 4px; }

.practice-form {
  background: #fafbfb; border: 1px solid var(--line);
  border-radius: 6px; padding: 14px; margin-top: 12px;
}
.practice-form .field:last-of-type { margin-bottom: 0; }

input.field-error, textarea.field-error { border-color: var(--danger); }

.objective {
  margin-top: 8px; padding: 8px 11px;
  border-left: 2px solid var(--line); background: #fafbfb; border-radius: 0 4px 4px 0;
}
.objective .tiny { margin-top: 3px; }

.resource-links { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.resource-links .btn { margin: 0; }

.objective-text { white-space: pre-line; }

.phase-group + .phase-group { margin-top: 24px; }
.phase-title {
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); padding: 8px 0 6px; border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}

.video-wrap { width: 100%; max-width: 720px; margin: 4px 0 12px; }
.video-wrap video { width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: 6px; }
.video-caption { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 6px; font-size: 13px; }
.doc-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

.prompt-block {
  border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px;
  margin: 10px 0 14px; background: #fcfcfb;
}
.prompt-block > summary, .prompt-group > summary {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  cursor: pointer; font-size: 13.5px;
}
.prompt-group {
  border-top: 1px solid var(--line-soft); margin-top: 10px; padding-top: 8px;
}
.prompt-group:first-of-type { border-top: 0; margin-top: 4px; padding-top: 0; }
.prompt-group .field { margin-top: 10px; }
.prompt-text { display: block; margin: 3px 0 6px; line-height: 1.55; }
.prompt-footer {
  display: flex; justify-content: space-between; gap: 12px; align-items: baseline;
  margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--line-soft);
}
.prompt-readonly .evidence-group { margin-top: 10px; }
.prompt-readonly .evidence-group:first-child { margin-top: 0; }

.rating-row {
  display: flex; justify-content: space-between; gap: 12px;
  font-size: 13px; padding: 4px 0; border-bottom: 1px solid var(--line-soft);
}
.rating-row:last-child { border-bottom: 0; }

.checkin-questions { margin: 10px 0 16px; }
.checkin-evidence-questions { margin-top: 8px; }
.checkin-question-group { margin-top: 12px; }
.checkin-question-list {
  margin: 4px 0 0 18px; padding: 0;
  font-size: 13px; color: var(--ink-soft);
}
.checkin-question-list li + li { margin-top: 4px; }

.sami-comparison { margin-top: 18px; }
.sami-comparison.embedded {
  margin: 14px 0; padding: 14px;
  border: 1px solid var(--line); border-radius: 6px; background: #fcfcfb;
}
.sami-reflection { margin-top: 14px; }
.sami-reflection-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; margin-top: 6px;
}
.sami-average {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line-soft);
}
.sami-average strong { display: block; font-size: 16px; margin: 2px 0; }

.position-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin: 0 0 18px; padding: 12px 16px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  position: sticky; top: 0; z-index: 8;
  box-shadow: 0 8px 18px rgba(31, 41, 51, .06);
}
.position-step { font-size: 15px; font-weight: 600; }

.task-row.current { background: #fbfcfb; box-shadow: inset 3px 0 0 var(--accent); padding-left: 12px; }
.task-row.focused { background: #f7faf8; }
.current-badge { margin-right: 2px; background: var(--accent); color: #fff; }
.viewing-badge { background: #fff; border: 1px solid #b9c8d8; color: #3c5a7a; }

.step-row { display: block; padding: 0; }
.step-row.current { padding-left: 0; }
.step-row.current .task-summary,
.step-row.current .task-detail-wrap { padding-left: 12px; }
.task-summary {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 4px; cursor: pointer; list-style: none;
}
.task-summary::-webkit-details-marker { display: none; }
.task-detail-wrap { padding: 0 4px 14px 4px; }
.step-row.completed:not([open]) { background: #fcfcfb; }
.step-row.completed:not([open]) .task-summary:hover { background: #f7f9f8; }
.step-row.completed:not([open]) .task-title { color: var(--ink-soft); }
.details-toggle {
  color: var(--muted); font-size: 12px; line-height: 1.6;
  transition: transform .15s ease;
}
.step-row[open] .details-toggle { transform: rotate(180deg); }

.step-kicker {
  font-size: 13px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 2px;
}
.do-block {
  margin: 12px 0 2px 22px; padding: 12px 14px;
  background: var(--accent-soft); border-left: 3px solid var(--accent);
  border-radius: 6px;
}
.do-label { font-size: 13.5px; font-weight: 600; margin-bottom: 4px; }
.do-detail { font-size: 13.5px; color: var(--ink-soft); white-space: pre-line; }
.do-list { margin: 6px 0 0; padding-left: 18px; font-size: 13px; color: var(--ink-soft); }
.do-list li + li { margin-top: 4px; }
.do-practice-link { color: var(--accent); font-weight: 600; padding: 0; }
.completion-inline {
  margin: 12px 0 2px 22px; padding: 12px 14px;
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: var(--accent-soft); border: 1px solid var(--accent); border-radius: 6px;
}

.completion-banner { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; margin-bottom: 18px; }
.next-action { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }

form.inline-deadline { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; align-items: end; }
form.inline-deadline .full { grid-column: 1 / -1; }

@media (max-width: 640px) {
  .container { padding: 20px 14px 60px; }
  .topbar { padding: 12px 14px; }
  .kv { grid-template-columns: 1fr; }
  form.inline-deadline { grid-template-columns: 1fr; }
  .position-bar { flex-wrap: wrap; }
  .do-block, .completion-inline { margin-left: 0; }
  .sami-reflection-grid { grid-template-columns: 1fr; }
  .sami-average { grid-template-columns: 1fr; }
  .step-row .task-summary { flex-wrap: wrap; }
  .step-row .task-actions { flex-wrap: wrap; justify-content: flex-end; }
}