:root { color-scheme:only light; --bg:#f7faf8; --bg-elevated:#fff; --surface:#fff; --surface-2:#f7faf8; --ink:#24372f; --muted:#5f7067; --accent:#207a56; --accent-2:#185d42; --accent-ink:#fff; --line:#e1eae5; --shadow:none; --font-body:"PingFang SC","Microsoft YaHei",sans-serif; --font-display:"Songti SC",SimSun,serif; }
body.app-shell { background:#fff; font-size:15px; line-height:1.7; }
.app-frame { margin-left:0; }
.topbar { min-height:78px; padding:0 4%; gap:24px; background:#fff; backdrop-filter:none; position:relative; }
.brand { align-items:center; font-size:26px; font-weight:500; letter-spacing:3px; gap:10px; }
.brand-seal { display:grid; place-items:center; width:33px; height:35px; border:1px solid var(--accent); border-radius:7px 7px 11px 7px; font-size:23px; }
.top-nav { align-self:stretch; gap:30px; }
.top-nav a { display:flex; align-items:center; border-bottom:2px solid transparent; padding:8px 2px; }
.top-nav a[aria-current="page"] { color:var(--accent); border-bottom-color:var(--accent); }
.account-name { color:var(--muted); font-size:13px; max-width:120px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.avatar-link { background:#edf8f1; color:var(--accent); border:0; box-shadow:none; }
.workspace { width:100%; max-width:1200px; margin:0 auto; padding:40px 36px 64px; flex:1; }
.mobile-nav { display:none; }
.skip-link { position:absolute; left:20px; top:-80px; z-index:100; background:#fff; padding:12px; }.skip-link:focus { top:8px; }
.knowledge-page { max-width:880px; margin:auto; }
.reading-page { max-width:680px; margin:auto; overflow-wrap:anywhere; }
.reading-heading { margin-bottom:30px; }
.eyebrow { color:var(--accent); font-size:12px; letter-spacing:2px; margin:0 0 8px; }
.reading-heading h1,.book-heading h1 { font-family:var(--font-display); font-size:32px; line-height:1.5; font-weight:500; margin:8px 0 13px; }
.reading-heading p { margin:8px 0; }.muted { color:var(--muted); }
.knowledge-tools { display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; padding-bottom:18px; border-bottom:1px solid var(--line); }
.reading-tabs,.reading-subtabs { display:flex; gap:5px; flex-wrap:wrap; }.reading-tabs a,.reading-subtabs a { display:flex; align-items:center; min-height:42px; padding:7px 14px; border-radius:6px; color:var(--muted); text-decoration:none; }
.reading-tabs a[aria-current="page"] { background:var(--accent); color:#fff; }.reading-subtabs a[aria-current="page"] { background:#edf8f1; color:var(--accent); }.reading-subtabs { margin-top:16px; }
.knowledge-search { display:flex; border:1px solid var(--line); border-radius:8px; background:#f7faf8; max-width:100%; width:290px; }
.knowledge-search input { flex:1; min-width:0; width:100%; border:0; background:transparent; font:inherit; padding:10px 12px; color:var(--ink); font-size:13px; }.knowledge-search button { border:0; background:transparent; color:var(--accent); padding:9px 12px; font:inherit; font-size:13px; cursor:pointer; }
.reading-section-head { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; margin:28px 0 4px; font-size:12px; }.reading-section-head h2 { font-size:16px; margin:0; font-weight:600; }
.book-row { display:flex; align-items:center; justify-content:space-between; gap:24px; padding:26px 0; border-bottom:1px solid var(--line); }.book-row:last-child { border:0; }.book-row>div { min-width:0; }.book-row h2 { font-family:var(--font-display); font-size:26px; font-weight:500; margin:6px 0; }.book-row h2 a,.article-row h2 a { color:var(--ink); }.book-row p { color:var(--muted); margin:8px 0 10px; }.book-open { flex-shrink:0; padding:10px 0; }.book-open span { margin-left:10px; }
.reading-meta { font-size:12px; color:var(--muted); }.article-row { padding:24px 0; border-bottom:1px solid var(--line); }.article-row h2 { font-size:19px; margin:6px 0 8px; line-height:1.6; }.article-row p { color:var(--muted); font-size:14px; margin:8px 0 12px; }.brief-line { display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }.brief-label { color:var(--accent); font-size:12px; margin-right:8px; }
.reading-back { display:inline-flex; padding:8px 0; margin-bottom:22px; }.book-heading { padding-bottom:28px; border-bottom:1px solid var(--line); }.book-heading h1 { font-size:36px; }.book-description { max-width:640px; color:var(--muted); margin:20px 0 24px; }.chapter-row { display:flex; align-items:center; gap:24px; padding:24px 0; border-bottom:1px solid var(--line); color:var(--ink); }.chapter-row-copy { flex:1; min-width:0; }.chapter-row-copy strong { display:block; font-size:18px; font-weight:500; }
.ai-brief { margin:28px 0; padding:20px 23px; background:#edf8f1; border-radius:9px; }.ai-brief-heading { display:flex; align-items:center; justify-content:space-between; gap:12px; color:var(--accent); }.ai-brief-heading h2 { font-size:14px; margin:0; }.ai-brief-heading span { color:var(--muted); font-size:12px; }.ai-brief p { font-size:15px; line-height:1.9; margin:10px 0 0; }
.classic-original h2,.reading-interpretation h2 { font:500 16px var(--font-body); margin:28px 0 16px; }.classic-original p { font-family:var(--font-display); font-size:22px; line-height:2.05; margin:20px 0; }.reading-interpretation { border-top:1px solid var(--line); margin-top:28px; padding-top:18px; }.reading-interpretation summary { cursor:pointer; color:var(--accent); padding:8px 0; }.reading-prose { font-size:16px; line-height:1.95; }.reading-interpretation .reading-prose { color:var(--muted); }.reading-prose img { max-width:100%; height:auto; }.reading-prose table { display:block; overflow-x:auto; max-width:100%; }.reading-prose pre { white-space:pre-wrap; overflow-wrap:anywhere; }
.reading-source { margin:28px 0; color:var(--muted); font-size:12px; }.reading-actions { display:flex; flex-wrap:wrap; gap:12px; border-top:1px solid var(--line); margin-top:30px; padding-top:22px; align-items:center; }.reading-actions form { margin:0; }.reading-actions>.btn:last-child { margin-left:auto; }.chapter-navigation,.reading-pagination { display:flex; justify-content:space-between; flex-wrap:wrap; gap:16px; padding:22px 0; border-top:1px solid var(--line); margin-top:30px; font-size:14px; }
.btn,.btn.secondary,.cta { border-radius:7px; box-shadow:none; min-height:44px; font-size:14px; font-family:var(--font-body); }.btn.secondary { color:var(--ink); background:#fff; border:1px solid var(--line); }.btn { color:#fff; background:var(--accent); }.reading-empty { text-align:center; padding:65px 10px; color:var(--muted); }.reading-empty h2 { font-size:19px; font-weight:500; }.reading-notice { padding:12px 18px; background:#edf8f1; color:var(--accent); margin-bottom:24px; border-radius:8px; }
.account-page { max-width:760px; margin:auto; }.account-heading { display:flex; align-items:center; gap:18px; margin-bottom:28px; }.account-heading h1 { margin:0; font-size:24px; font-weight:500; }.account-avatar { width:64px; height:64px; display:grid; place-items:center; font-size:26px; border-radius:50%; color:var(--accent); background:#edf8f1; }.account-points { display:flex; justify-content:space-between; gap:16px; align-items:center; background:#edf8f1; border-radius:10px; padding:22px; margin-bottom:24px; }.account-points strong { font:32px Georgia,serif; }.account-menu a { display:flex; align-items:center; justify-content:space-between; min-height:64px; border-bottom:1px solid var(--line); color:var(--ink); }.account-menu span { color:var(--muted); font-size:13px; }.auth-card { max-width:430px; margin:30px auto; border:1px solid var(--line); border-radius:12px; padding:28px; background:#fff; }.auth-card h1 { font-size:25px; font-weight:500; margin-top:0; }.auth-card label { display:block; margin:18px 0; }.auth-card input { width:100%; display:block; border:1px solid var(--line); background:#f7faf8; border-radius:6px; padding:11px 12px; margin-top:7px; font:inherit; }.auth-card .btn { width:100%; }.auth-foot { display:flex; justify-content:space-between; margin-top:18px; font-size:13px; }.errorlist { color:var(--danger); padding-left:20px; font-size:13px; }
.chat-page-body .workspace-chat { max-width:1200px; }.chat-page-body .chat-page { background:#fff; border:0; box-shadow:none; }.chat-history { background:#f7faf8; border-color:var(--line); }.chat-page-composer { background:#fff; border-color:var(--line); box-shadow:none; }.chat-page-welcome h1 { font-family:var(--font-display); color:var(--ink); }.chat-page-welcome p { color:var(--muted); }.reading-reference { padding:14px 18px; background:#edf8f1; border-radius:8px; margin-bottom:18px; font-size:13px; }.reading-reference p { margin:6px 0; }.reading-reference label { display:block; margin-top:10px; }.reading-reference input { width:auto; }.reading-reference .reference-title { font-weight:600; }
.consultation-page { max-width:760px; }.consultation-balance { display:flex; align-items:center; gap:12px; padding:18px 20px; margin-bottom:20px; border-radius:10px; background:#edf8f1; color:var(--muted); }.consultation-balance strong { color:var(--ink); font:28px Georgia,serif; }.consultation-balance a { margin-left:auto; white-space:nowrap; }.consultation-card { padding:22px; margin:18px 0; border:1px solid var(--line); border-radius:10px; background:#fff; }.consultation-card-head { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:16px; }.consultation-card-head h2 { margin:0; font-size:18px; font-weight:500; }.consultation-card-head .eyebrow { margin-bottom:2px; }.field-label { display:block; margin-bottom:7px; font-size:13px; font-weight:600; color:var(--ink); }.field-control { display:block; width:100%; min-height:46px; padding:10px 12px; border:1px solid var(--line); border-radius:7px; background:var(--surface-2); color:var(--ink); font:inherit; }.consultation-form { display:grid; gap:20px; }.consultation-form textarea { min-height:140px; resize:vertical; }.consultation-form fieldset { margin:0; padding:14px 16px; border:1px solid var(--line); border-radius:8px; background:#f7faf8; }.consultation-form fieldset input { width:auto; }.consultation-form fieldset p { margin:7px 0 0; color:var(--muted); font-size:13px; }.consultation-form .reading-meta { margin:0; }.consultation-actions { display:flex; flex-wrap:wrap; gap:10px; }.consultation-status:not(:empty) { padding:12px 16px; margin:18px 0; border-radius:8px; background:#f7faf8; color:var(--muted); }.consultation-page #fixedMessages:not(:empty) { margin:20px 0; }.consultation-page select:disabled,.consultation-page textarea:disabled { cursor:not-allowed; opacity:.7; }.consultation-page button:disabled { cursor:not-allowed; opacity:.55; }
@media(max-width:640px) {
  .topbar { min-height:66px; padding:0 20px; justify-content:space-between; }.top-nav,.account-name { display:none; }.brand { font-size:24px; }.app-frame { margin:0; padding-bottom:70px; }.workspace { padding:26px 20px 36px; }.mobile-nav { display:flex; position:fixed; left:0; right:0; bottom:0; z-index:50; background:#fff; border-top:1px solid var(--line); padding:8px 12px calc(8px + env(safe-area-inset-bottom)); justify-content:space-around; }.mobile-nav a { color:var(--muted); min-height:44px; display:flex; align-items:center; padding:8px 16px; font-size:13px; }.mobile-nav a[aria-current="page"] { color:var(--accent); background:#edf8f1; border-radius:7px; }
  .reading-heading h1 { font-size:27px; }.knowledge-tools { flex-direction:column-reverse; align-items:stretch; gap:14px; }.knowledge-search { width:100%; }.knowledge-search input { font-size:16px; }.reading-tabs a { padding:7px 12px; }.book-row { gap:16px; align-items:flex-start; padding:23px 0; }.book-row h2 { font-size:25px; }.book-open { margin-top:18px; font-size:13px; }.book-open span { margin-left:4px; }.book-row p { font-size:14px; }.reading-heading { margin-bottom:24px; }.book-heading h1 { font-size:32px; }.classic-original p { font-size:21px; }.ai-brief { padding:18px; }.reading-prose { font-size:17px; }.chapter-row { gap:14px; }.chapter-row>.reading-meta { max-width:82px; }.reading-actions { gap:8px; }.reading-actions>.btn:last-child { margin-left:0; }.auth-card { padding:22px; margin:16px auto; }.auth-card input { font-size:16px; }.chat-page-body .workspace-chat { padding:16px 12px; }.chat-history { display:none; }.chat-page { grid-template-columns:minmax(0,1fr); }.chat-page-main { width:100%; min-width:0; }.chat-page-composer textarea { font-size:16px; }.consultation-balance { align-items:flex-start; flex-wrap:wrap; }.consultation-balance a { width:100%; margin-left:0; }.consultation-card { padding:18px; }.consultation-card-head { align-items:flex-start; }.consultation-form textarea { font-size:16px; }.consultation-actions .btn { width:100%; }
}