:root {
  --ink: #132a28;
  --muted: #60716f;
  --paper: #f4f2eb;
  --surface: rgba(255, 255, 252, .86);
  --line: rgba(19, 42, 40, .13);
  --primary: #0d6b5e;
  --primary-dark: #084a42;
  --accent: #d28b46;
  --success: #1e786a;
  --warning: #976122;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow: 0 22px 70px rgba(32, 51, 47, .10);
  --font-sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", STSong, serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--paper); }
body { margin: 0; min-height: 100vh; color: var(--ink); font-family: var(--font-sans); line-height: 1.65; overflow-x: hidden; }
button, textarea, input { font: inherit; }
button { cursor: pointer; }
button:focus-visible, textarea:focus-visible, input:focus-visible { outline: 3px solid rgba(13, 107, 94, .25); outline-offset: 3px; }
.ambient { position: fixed; border-radius: 50%; filter: blur(2px); pointer-events: none; z-index: -1; }
.ambient-one { width: 520px; height: 520px; right: -160px; top: -180px; background: radial-gradient(circle, rgba(114, 176, 151, .28), transparent 67%); }
.ambient-two { width: 480px; height: 480px; left: -180px; bottom: -220px; background: radial-gradient(circle, rgba(210, 139, 70, .16), transparent 65%); }
.topbar { max-width: 1240px; margin: auto; padding: 26px 30px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; gap: 12px; align-items: center; color: inherit; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 14px 14px 14px 4px; color: #fff; background: var(--primary); font-family: var(--font-serif); font-size: 20px; }
.brand strong { display: block; letter-spacing: .16em; font-family: var(--font-serif); font-size: 18px; }
.brand small { display: block; margin-top: -3px; color: var(--muted); font-size: 9px; letter-spacing: .13em; }
.top-actions { display: flex; gap: 18px; align-items: center; }
.privacy-pill { padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; background: rgba(255,255,255,.5); }
.dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #4ba68f; }
.text-button { padding: 6px 0; border: 0; color: var(--muted); background: transparent; }
.shell { max-width: 1180px; margin: 16px auto 70px; padding: 0 30px; }
.welcome-panel { max-width: 1020px; margin: 55px auto 0; text-align: center; }
.eyebrow, .section-kicker { color: var(--primary); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
h1 { margin: 18px 0 22px; font-family: var(--font-serif); font-size: clamp(42px, 6.5vw, 76px); font-weight: 600; line-height: 1.16; letter-spacing: -.04em; }
h1 em { color: var(--primary); font-style: normal; }
.lede { max-width: 720px; margin: auto; color: var(--muted); font-size: 17px; }
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 54px 0 24px; text-align: left; }
.promise-grid article { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,252,.6); }
.promise-grid article span { color: var(--accent); font-family: var(--font-serif); font-size: 13px; }
.promise-grid h3 { margin: 10px 0 5px; font-family: var(--font-serif); font-size: 19px; }
.promise-grid p { margin: 0; color: var(--muted); font-size: 13px; }
.consent-box { display: flex; gap: 24px; align-items: center; padding: 22px 24px; border-radius: var(--radius-md); background: var(--ink); color: #eef5f2; text-align: left; box-shadow: var(--shadow); }
.consent-box label { display: flex; flex: 1; gap: 10px; align-items: flex-start; font-size: 13px; color: #c7d5d1; }
.consent-box input { margin-top: 5px; accent-color: #d9b076; }
.primary-button { min-width: 164px; padding: 13px 20px; border: 0; border-radius: var(--radius-sm); color: white; background: var(--primary); font-weight: 700; transition: transform .2s, background .2s; }
.primary-button:hover:not(:disabled) { transform: translateY(-2px); background: #138172; }
.primary-button:disabled { opacity: .42; cursor: not-allowed; }
.primary-button span { margin-left: 18px; }
.coach-layout { display: grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: start; }
.journey-card, .conversation-card { border: 1px solid rgba(255,255,255,.7); background: var(--surface); backdrop-filter: blur(16px); box-shadow: var(--shadow); }
.journey-card { position: sticky; top: 20px; padding: 26px; border-radius: var(--radius-lg); }
.journey-card h2 { margin: 2px 0 24px; font-family: var(--font-serif); font-size: 25px; }
.stage-list { margin: 0; padding: 0; list-style: none; }
.stage-list li { position: relative; display: flex; gap: 12px; padding: 0 0 21px; color: #8a9694; font-size: 13px; }
.stage-list li::before { content: ''; position: absolute; left: 10px; top: 21px; bottom: 0; width: 1px; background: var(--line); }
.stage-list li:last-child::before { display: none; }
.stage-index { position: relative; z-index: 1; display: grid; place-items: center; flex: 0 0 21px; height: 21px; border: 1px solid var(--line); border-radius: 50%; background: #fafaf5; font-size: 10px; }
.stage-list li.active { color: var(--ink); font-weight: 700; }
.stage-list li.active .stage-index { color: white; border-color: var(--primary); background: var(--primary); }
.stage-list li.done .stage-index { color: var(--primary); border-color: #7eb6a9; background: #e5f1ec; }
.journey-note { margin-top: 6px; padding: 15px; border-radius: 13px; background: #edf2ed; }
.journey-note strong { font-family: var(--font-serif); font-size: 13px; }
.journey-note p { margin: 3px 0 0; color: var(--muted); font-size: 11px; }
.conversation-card { min-height: 650px; padding: 34px 42px; border-radius: var(--radius-lg); }
.progress-row { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.progress-track { height: 4px; margin-top: 12px; overflow: hidden; border-radius: 99px; background: #e3e7e2; }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary), #60aa93); transition: width .35s ease; }
.question-block { max-width: 720px; margin: 62px auto 0; }
.question-number { color: var(--accent); font-family: var(--font-serif); font-size: 13px; }
.question-block h1 { margin: 12px 0 13px; font-size: clamp(29px, 4vw, 43px); letter-spacing: -.02em; }
.question-hint { color: var(--muted); font-size: 14px; }
.options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 26px 0 14px; }
.option-button { padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: #fff; text-align: left; transition: .2s; }
.option-button:hover, .option-button.selected { border-color: var(--primary); background: #edf6f2; }
.answer-box { width: 100%; min-height: 128px; resize: vertical; padding: 17px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: #fff; }
.answer-box::placeholder { color: #a5afad; }
.answer-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; }
.answer-actions small { color: var(--muted); }
.confirm-panel { padding: 24px; border: 1px solid #c9ded7; border-radius: 16px; background: #edf6f2; }
.confirm-panel h3 { margin: 0 0 8px; font-family: var(--font-serif); }
.confirm-quote { padding-left: 15px; border-left: 3px solid var(--primary); color: #34534e; }
.button-row { display: flex; gap: 12px; margin-top: 22px; }
.secondary-button { padding: 12px 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink); background: white; }
.report { max-width: 820px; margin: 38px auto; }
.report-header { padding: 34px; border-radius: 22px; color: #f3f7f5; background: var(--ink); }
.report-header h1 { margin: 7px 0 12px; font-size: 38px; }
.report-header p { color: #bfcfca; }
.report-section { margin-top: 16px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.report-section h2 { margin: 0 0 14px; font-family: var(--font-serif); font-size: 23px; }
.report-section ul { padding-left: 20px; }
.report-section li { margin: 8px 0; }
.tag { display: inline-block; margin: 3px 4px 3px 0; padding: 5px 9px; border-radius: 99px; background: #e7f1ed; color: var(--primary-dark); font-size: 12px; }
.action-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.action-card { padding: 17px; border-radius: 13px; background: #f2f4ef; }
.action-card strong { color: var(--primary); }
.action-card p { margin: 5px 0; }
.action-card small { color: var(--muted); }
.evidence-link { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--primary-dark); text-decoration: none; }
.evidence-link:last-child { border: 0; }
.evidence-link small { display: block; color: var(--muted); }
.answer-review { display: grid; gap: 8px; }
.review-answer-button { display: grid; grid-template-columns: minmax(180px, .8fr) 1.2fr; gap: 18px; width: 100%; padding: 13px 0; border: 0; border-bottom: 1px solid var(--line); color: var(--ink); background: transparent; text-align: left; }
.review-answer-button:hover span { color: var(--primary); }
.review-answer-button small { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.disclaimer { color: var(--muted); font-size: 12px; }
.empty-error { margin: 80px auto; max-width: 560px; text-align: center; }

@media (max-width: 800px) {
  .topbar { padding: 18px; }
  .privacy-pill { display: none; }
  .shell { margin-top: 0; padding: 0 16px 45px; }
  .welcome-panel { margin-top: 25px; }
  h1 { font-size: 42px; }
  .promise-grid { grid-template-columns: 1fr; margin-top: 35px; }
  .consent-box { align-items: stretch; flex-direction: column; }
  .coach-layout { grid-template-columns: 1fr; }
  .journey-card { position: static; padding: 18px; }
  .journey-card > div:first-child, .journey-note { display: none; }
  .stage-list { display: flex; overflow-x: auto; }
  .stage-list li { flex: 0 0 auto; padding: 0 18px 0 0; }
  .stage-list li::before { display: none; }
  .conversation-card { min-height: 560px; padding: 24px 20px; }
  .question-block { margin-top: 40px; }
  .question-block h1 { font-size: 31px; }
  .options, .action-grid { grid-template-columns: 1fr; }
  .answer-actions { align-items: stretch; flex-direction: column; gap: 12px; }
  .answer-actions .primary-button { width: 100%; }
  .report-header, .report-section { padding: 22px; }
  .review-answer-button { grid-template-columns: 1fr; gap: 2px; }
  .confirm-quote { overflow-wrap: anywhere; }
  .button-row { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

.intro{max-width:760px;margin:48px auto 28px;text-align:center}.intro h1{font-size:clamp(38px,6vw,64px)}.intro p{color:var(--muted);font-size:17px}.chat{max-width:820px;margin:auto;background:rgba(255,255,252,.9);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}.contract{display:flex;gap:16px;align-items:center;padding:13px 16px;background:#edf5f1;border-radius:12px;color:var(--primary-dark);font-size:13px}.contract span{color:var(--muted)}.messages{min-height:360px;padding:24px 6px}.turn{display:flex;gap:12px;margin:20px 0}.turn.user{flex-direction:row-reverse}.avatar{flex:0 0 32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:12px}.user .avatar{background:var(--accent)}.bubble{max-width:78%;padding:14px 17px;border-radius:16px;background:#f3f5f0}.user .bubble{background:#e6f1ec}.bubble p{margin:0 0 8px}.bubble p:last-child{margin:0}.empty{padding:70px 20px;text-align:center;color:var(--muted)}.empty strong{color:var(--ink)}#chat-form{display:flex;gap:12px;border-top:1px solid var(--line);padding-top:18px}.chat textarea{flex:1;min-height:64px;border:1px solid var(--line);border-radius:12px;padding:12px;resize:vertical}.send,.memo-button{border:0;border-radius:10px;padding:12px 20px;background:var(--primary);color:#fff;font-weight:700}.memo-button{display:block;margin:20px auto}.memo{max-width:820px;margin:42px auto;background:#fff;padding:42px;border-radius:20px;box-shadow:var(--shadow)}.memo section{margin-top:28px;border-top:1px solid var(--line);padding-top:20px}.memo h1{font-size:42px}.memo h2{font-family:var(--font-serif)}blockquote{margin:0;padding:16px 20px;border-left:3px solid var(--primary);background:#f1f6f2}.back{border:0;background:transparent;color:var(--muted);padding:0}.muted{color:var(--muted)}.space{height:8px}@media(max-width:700px){.chat{padding:14px}.contract{display:block}.contract span{display:block;margin-top:5px}.bubble{max-width:86%}#chat-form{flex-direction:column}.send{width:100%}.memo{padding:24px}.memo h1{font-size:32px}}
.runtime{display:inline-block;margin-top:10px;padding:6px 11px;border-radius:999px;font-size:12px}.runtime.live{background:#e3f4eb;color:#176542}.runtime.demo{background:#fff0db;color:#8b5713}
.bubble h2{margin:22px 0 10px;font-family:var(--font-serif);font-size:20px}.bubble h3{margin:18px 0 8px;font-size:16px}.bubble hr{margin:20px 0;border:0;border-top:1px solid var(--line)}.bubble blockquote{margin:12px 0}.list-item{margin:7px 0;padding-left:8px}.trace{margin-top:15px;padding-top:10px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.trace summary{cursor:pointer;color:var(--primary)}
.table-wrap{margin:14px 0;overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:#fff}.bubble table{width:100%;border-collapse:collapse;font-size:13px}.bubble th,.bubble td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.bubble th{background:#edf5f1;color:var(--primary-dark);font-weight:700}.bubble tbody tr:last-child td{border-bottom:0}
.memo-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.memo-grid section{margin-top:14px;border:1px solid var(--line);border-radius:14px;padding:18px}.memo li{margin:7px 0}@media(max-width:700px){.memo-grid{grid-template-columns:1fr}}

/* 顶栏右侧：返回官网 + 新对话 */
.topbar-right { display: flex; align-items: center; gap: 12px; }