:root{
  --teal:#0F6E56; --teal-50:#E1F5EE; --teal-900:#04342C;
  --ink:#1c1c1a; --muted:#6b6b66; --line:rgba(0,0,0,.10);
  --bg:#f6f7f6; --card:#ffffff; --chip-bg:#E6F1FB; --chip-ink:#0C447C;
  --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.7;
  padding:52px 0 60px}
.hidden{display:none!important}
.muted{color:var(--muted);font-size:13px}

.topbar{position:fixed;top:0;left:0;right:0;height:52px;background:#fff;
  border-bottom:.5px solid var(--line);display:flex;align-items:center;
  justify-content:space-between;padding:0 16px;z-index:20}
.brand{font-weight:500;display:flex;align-items:center;gap:8px}
.logo{width:28px;height:28px;border-radius:8px;background:#fff;border:.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;overflow:hidden;flex:0 0 auto}
.logo img{width:100%;height:100%;object-fit:cover;display:block}
.top-actions{display:flex;align-items:center;gap:8px}
.new-chat{height:30px;border:.5px solid var(--line);border-radius:15px;background:#fff;color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:0 9px;font-size:12px;font-weight:500}
.new-chat .ti{font-size:16px}
.quota{font-size:13px;color:var(--teal);background:var(--teal-50);padding:3px 10px;border-radius:20px}

.view{max-width:560px;margin:0 auto;padding:12px 14px}
.card{background:var(--card);border:.5px solid var(--line);border-radius:var(--radius);
  padding:16px;margin-bottom:12px}
.card h3{margin:0 0 8px;font-size:16px;font-weight:500}

/* 空状态 */
.empty{text-align:center;padding:30px 8px 8px}
.empty-title{font-size:18px;font-weight:500}
.empty-sub{font-size:13px;color:var(--muted);margin:6px 0 18px}
.examples{display:flex;flex-direction:column;gap:8px}
.ex{background:#fff;border:.5px solid var(--line);border-radius:12px;padding:11px 14px;font-size:14px;text-align:left;color:var(--ink);cursor:pointer}
.history{margin-top:18px;text-align:left}
.section-title{font-size:12px;color:var(--muted);margin:0 0 8px}
.history-list{display:flex;flex-direction:column;gap:7px}
.hist{width:100%;background:transparent;border:.5px solid var(--line);border-radius:10px;padding:8px 11px;
  font-size:13px;color:var(--muted);text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.history-more{width:100%;border:.5px dashed rgba(15,110,86,.32);border-radius:10px;background:rgba(225,245,238,.38);
  color:var(--teal);padding:8px 11px;font-size:13px;text-align:center}

/* 历史页 / 文件夹 */
.history-page{background:#fff;border:.5px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:14px}
.history-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.history-head h3{margin:0;font-size:18px;font-weight:650;color:var(--teal-900)}
.history-head p{margin:3px 0 0;color:var(--muted);font-size:12.5px;line-height:1.55}
.history-browser{display:flex;flex-direction:column;gap:10px}
.history-filterbar{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.history-filter{height:38px;border:.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:center;gap:6px;font-size:13px}
.history-filter .ti{font-size:17px}
.history-filter.active{border-color:rgba(15,110,86,.32);background:var(--teal-50);color:var(--teal-900);font-weight:650}
.folder-panel{border:.5px solid rgba(15,110,86,.14);border-radius:12px;background:rgba(225,245,238,.22);padding:10px}
.folder-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;max-height:230px;overflow:auto;padding:0;margin:0}
.folder-chip{width:100%;border:.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
  min-height:34px;padding:7px 9px;font-size:13px;display:flex;align-items:center;gap:6px;text-align:left}
.folder-chip span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.folder-chip.active{border-color:rgba(15,110,86,.32);background:var(--teal-50);color:var(--teal-900)}
.folder-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:2px 0 12px}
.folder-actions button{height:38px;border:.5px solid rgba(15,110,86,.22);border-radius:10px;background:#fff;color:var(--teal);
  display:flex;align-items:center;justify-content:center;gap:6px;font-size:13px}
.history-results{min-width:0}
.history-page-list,.folder-item-list{display:flex;flex-direction:column;gap:9px}
.history-card{border:.5px solid var(--line);border-radius:12px;background:#fff;padding:11px 12px;text-align:left}
.history-card-title{font-size:14px;font-weight:600;color:var(--ink);line-height:1.45;margin-bottom:5px}
.history-card-meta{font-size:11.5px;color:var(--muted);margin-bottom:8px}
.history-card-actions{display:flex;gap:8px;flex-wrap:wrap}
.history-card-actions button{height:30px;border:.5px solid var(--line);border-radius:8px;background:#fff;color:var(--teal);
  display:inline-flex;align-items:center;gap:4px;padding:0 9px;font-size:12px}
.history-empty{border:.5px dashed rgba(15,110,86,.25);border-radius:12px;background:rgba(225,245,238,.28);
  color:var(--muted);font-size:13px;text-align:center;padding:18px 12px}
@media (max-width:640px){
  .history-filterbar{grid-template-columns:1fr 1fr}
  .folder-strip{grid-template-columns:repeat(2,minmax(0,1fr));max-height:178px}
  .folder-chip{min-height:36px}
}

/* 聊天 */
.chat{padding-bottom:140px;min-height:40vh}
.bubble-q{align-self:flex-end;background:var(--teal-50);color:var(--teal-900);
  padding:9px 13px;border-radius:14px;margin:14px 0 14px auto;max-width:85%;width:fit-content}
.answer{background:#fff;border:.5px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;margin-bottom:16px}
.answer h1{font-size:22px;font-weight:700;color:var(--teal-900);margin:20px 0 8px}
.answer h2{font-size:19px;font-weight:600;color:var(--teal-900);margin:18px 0 7px}
.answer h3{font-size:17px;font-weight:600;color:var(--teal);margin:16px 0 6px}
.answer h1,.answer h2,.answer h3{line-break:strict;word-break:keep-all;overflow-wrap:anywhere}
.answer h4{font-size:15.5px;font-weight:600;color:var(--teal);margin:14px 0 5px}
.answer p{margin:6px 0}
.answer table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%;width:100%;border-collapse:collapse;font-size:12.5px;line-height:1.45;margin:8px 0}
.answer th,.answer td{border:1px solid #b7c2bd;padding:4px 8px;text-align:left;max-width:130px;word-break:break-word}
.answer td{min-width:52px;white-space:normal}
.answer th{background:var(--teal-50);color:var(--teal-900);font-weight:600;white-space:nowrap;max-width:none}
.answer td .cite{font-size:9px;height:14px;padding:0 3px}
.answer ul,.answer ol{padding-left:20px;margin:6px 0}
.answer-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:-2px 0 10px}
.answer-actions-left{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:wrap}
.table-tools{display:flex;justify-content:flex-end;margin:8px 0 -2px}
.icon-btn{width:32px;height:32px;border:.5px solid var(--line);border-radius:8px;background:#fff;color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.answer-chip{width:auto;height:32px;min-width:0;padding:0 10px;gap:4px;font-size:12px;line-height:1;white-space:nowrap}
.answer-chip .ti{font-size:16px;flex:0 0 auto}
.answer-chip span{display:inline-block;white-space:nowrap}
.copy-one-table{height:28px}
.share-answer{border-color:rgba(15,110,86,.28);background:var(--teal-50)}
.cache-notice{display:flex;gap:9px;align-items:flex-start;background:rgba(225,245,238,.55);
  border:.5px solid rgba(15,110,86,.18);border-radius:10px;padding:9px 10px;margin:0 0 12px;color:var(--teal-900)}
.cache-notice>.ti{color:var(--teal);font-size:18px;margin-top:1px;flex:0 0 auto}
.cache-notice div{flex:1;min-width:0}
.cache-notice b{display:block;font-size:13px;font-weight:500;line-height:1.35}
.cache-notice span{display:block;font-size:12px;color:var(--muted);line-height:1.5;margin-top:2px}
.refresh-answer{height:28px;border:.5px solid rgba(15,110,86,.22);border-radius:9px;background:#fff;color:var(--teal);
  display:inline-flex;align-items:center;gap:4px;padding:0 8px;font-size:12px;white-space:nowrap}
.cache-notice.outdated{background:#fff4df;border-color:#e7b85e;color:#4f3410}
.cache-notice.outdated>.ti{color:#b8860b}
.prior-better{display:flex;gap:9px;align-items:flex-start;background:#fff4df;
  border:.5px solid #e7b85e;border-radius:10px;padding:9px 10px;margin:0 0 12px;color:#4f3410}
.prior-better>.ti{color:#b8860b;font-size:18px;margin-top:1px;flex:0 0 auto}
.prior-better div{flex:1;min-width:0}
.prior-better b{display:block;font-size:13px;font-weight:500;line-height:1.35}
.prior-better span{display:block;font-size:12px;color:#6b5a30;line-height:1.5;margin-top:2px}
.view-prior{height:28px;border:.5px solid #e7b85e;border-radius:9px;background:#fff;color:#8a6d1f;
  display:inline-flex;align-items:center;gap:4px;padding:0 8px;font-size:12px;white-space:nowrap}
.prior-compare{margin:10px 0 4px;border:.5px solid var(--line);border-radius:12px;overflow:hidden;animation:fade .3s both}
.prior-compare-head{display:flex;align-items:center;gap:7px;padding:9px 12px;background:var(--teal-50);
  font-size:13px;color:var(--teal-900)}
.prior-compare-head .ti{color:var(--teal)}
.prior-compare-head b{flex:1}
.prior-compare-close{height:26px;border:.5px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;gap:3px;padding:0 8px;font-size:12px}
.prior-compare-cols{display:flex;gap:0}
.prior-col{flex:1;min-width:0;padding:12px 14px}
.prior-col+.prior-col{border-left:.5px solid var(--line)}
.prior-col-tag{font-size:12px;font-weight:600;padding:3px 9px;border-radius:7px;display:inline-block;margin-bottom:9px}
.prior-col-new{background:rgba(15,110,86,.1);color:var(--teal-900)}
.prior-col-old{background:#fff4df;color:#8a6d1f}
.prior-col-body{font-size:13px;line-height:1.6}
@media (max-width:640px){.prior-compare-cols{flex-direction:column}
  .prior-col+.prior-col{border-left:none;border-top:.5px solid var(--line)}}
.followups{margin:-6px 0 18px;display:flex;flex-direction:column;gap:7px;animation:fade .3s both}
.followups-title{font-size:12px;color:var(--muted);padding-left:2px}
.followup{background:#fff;border:.5px solid var(--line);border-radius:12px;padding:10px 13px;
  font-size:13px;line-height:1.45;text-align:left;color:var(--ink);animation:fade .35s both}
.followup:active{background:var(--teal-50);border-color:rgba(15,110,86,.25)}
.followup.fresh{display:flex;align-items:center;justify-content:center;gap:6px;color:var(--teal);
  border-style:dashed;background:rgba(225,245,238,.34);font-weight:500}
.followup.fresh .ti{font-size:17px}
.pro-banner{background:#fff4df;border:1px solid #e7b85e;color:#4f3410;border-radius:10px;
  padding:10px 12px;margin:0 0 12px;font-size:13px;line-height:1.55;font-weight:500}
.evidence-boundary{display:flex;gap:9px;align-items:flex-start;background:rgba(225,245,238,.55);
  border:.5px solid rgba(15,110,86,.18);border-radius:10px;padding:10px 11px;margin:0 0 12px;color:var(--teal-900)}
.evidence-boundary .ti{color:var(--teal);font-size:18px;margin-top:1px;flex:0 0 auto}
.evidence-boundary b{display:block;font-size:13px;font-weight:500;line-height:1.35}
.evidence-boundary span{display:block;font-size:12.5px;color:var(--muted);line-height:1.55;margin-top:2px}

.cite{display:inline-flex;align-items:center;font-size:10px;padding:0 4px;height:15px;
  border-radius:5px;background:var(--chip-bg);color:var(--chip-ink);font-weight:500;
  margin:0 1px;vertical-align:1px;cursor:pointer}

.srcbar{margin-top:12px;padding-top:10px;border-top:.5px solid var(--line);
  font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;justify-content:space-between;cursor:pointer}
.srcbar .ti{color:var(--teal)}
.sources{border:.5px solid var(--line);border-radius:10px;margin-top:8px;overflow:hidden}
.source-summary{padding:11px 12px;background:#f7fbf9;border-bottom:.5px solid var(--line);color:var(--muted);font-size:12px;line-height:1.55}
.source-summary-title{display:flex;align-items:center;gap:7px;color:var(--ink);margin-bottom:7px}
.source-summary-title .ti{color:var(--teal)}
.source-stats{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:7px}
.source-stats span{background:#e9f6f1;color:#0d6b55;border:.5px solid #cce8de;border-radius:7px;padding:3px 7px;line-height:1.3}
.source-summary p{margin:0}
.source-row{display:flex;gap:8px;align-items:flex-start;padding:9px 10px;border-top:.5px solid var(--line);font-size:12px;color:var(--muted)}
.source-row:first-child{border-top:none}
.source-row .ti{color:var(--teal);margin-top:2px}
.source-row a{color:var(--chip-ink);text-decoration:none;word-break:break-all}
.source-private{background:#fffdf7}
.disclaimer{font-size:11.5px;color:var(--muted);margin-top:8px;line-height:1.5}
.retry{background:#fff;border:.5px solid var(--line);border-radius:var(--radius);padding:13px 15px;margin-bottom:16px}
.retry p{margin:0 0 10px;color:var(--muted);font-size:13px}
.retry button{background:var(--teal);color:#fff;border:none;border-radius:10px;padding:9px 14px;font-size:13px}

/* 推理等待态 */
.thinking{background:#fff;border:.5px solid var(--line);border-radius:var(--radius);padding:13px 15px;margin-bottom:16px}
.stage{display:flex;align-items:center;gap:8px;font-size:13px;padding:4px 0;color:var(--muted);animation:fade .28s both}
.stage.is-hidden,.reasons.is-hidden{display:none}
.stage.active{color:var(--ink);font-weight:500}
.stage.pending{color:#b9b9b3}
.stage .dot{width:17px;height:17px;border-radius:50%;background:var(--teal-50);color:var(--teal);
  display:flex;align-items:center;justify-content:center;font-size:11px;flex:0 0 auto}
.stage.active .dot{animation:pulse 1.1s infinite}
.stage.pending .dot{background:#eee;color:#b9b9b3}
.reasons{margin-top:8px;padding-top:8px;border-top:.5px solid var(--line)}
.reasons-h{font-size:11px;color:#9a9a94;margin-bottom:4px;display:flex;align-items:center;justify-content:space-between}
.elapsed{font-variant-numeric:tabular-nums;color:var(--muted)}
.reason{font-size:12.5px;color:var(--muted);margin:3px 0;animation:fade .4s both}
.cursor{display:inline-block;width:6px;height:13px;background:var(--muted);vertical-align:-2px;margin-left:3px;animation:blink 1s infinite}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
.bar{height:3px;border-radius:2px;background:#eee;overflow:hidden;margin-top:8px;position:relative}
.bar i{position:absolute;left:0;width:var(--progress,6%);height:100%;background:var(--teal);border-radius:2px;transition:width 1s linear}
@keyframes pulse{0%,100%{opacity:.4}50%{opacity:1}}
@keyframes fade{from{opacity:0;transform:translateY(3px)}to{opacity:1}}
@keyframes shim{0%{transform:translateX(-100%)}100%{transform:translateX(330%)}}

/* 输入 */
.composer{position:fixed;bottom:60px;left:0;right:0;background:#fff;border-top:.5px solid var(--line);
  padding:8px 12px;display:flex;gap:8px;align-items:flex-end;max-width:560px;margin:0 auto}
.composer textarea{flex:1;min-height:40px;max-height:142px;border:.5px solid var(--line);border-radius:20px;
  padding:9px 14px;font-size:14px;line-height:20px;outline:none;resize:none;overflow-y:hidden}
.composer textarea:focus{border-color:var(--teal)}
.composer textarea:disabled,.composer button:disabled{opacity:.45;cursor:not-allowed}
button{font-family:inherit;cursor:pointer}
.composer button{background:var(--teal);color:#fff;border:none;border-radius:20px;width:44px;height:40px;flex:0 0 44px;font-size:18px;font-weight:500;
  display:flex;align-items:center;justify-content:center}
.ghost{display:block;width:100%;background:#fff;border:.5px solid var(--line);border-radius:12px;
  padding:12px;margin-bottom:10px;font-size:14px;color:var(--ink)}
.phone-bind{display:flex;gap:8px;margin:10px 0}
.phone-bind input{flex:1;border:.5px solid var(--line);border-radius:10px;padding:0 10px;font-size:14px}
.phone-bind button{background:var(--teal);color:#fff;border:none;border-radius:10px;padding:0 12px;font-size:13px;white-space:nowrap}
.phone-bind-stack{display:flex;flex-direction:column;gap:8px}
.phone-bind-stack input{height:40px}
.phone-code-row{display:flex;gap:8px}
.phone-code-row input{min-width:0}
.phone-code-row button{min-width:96px}
.invite-gate{background:#fff;border:.5px solid var(--line);border-radius:var(--radius);padding:18px 16px;margin:18px 0;animation:fade .3s both}
.invite-gate h3{margin:0 0 8px;font-size:17px;font-weight:500;color:var(--teal-900)}
.invite-gate p{margin:0 0 12px;color:var(--muted);font-size:13px;line-height:1.7}
.account-gate{text-align:left;padding:20px 18px}
.account-gate-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.account-gate-head h3{font-size:20px;font-weight:650;margin-bottom:5px}
.account-gate-head p{font-size:13px;line-height:1.65;margin:0;color:var(--muted)}
.phone-login-card{border:.5px solid rgba(15,110,86,.22);border-radius:12px;background:rgba(225,245,238,.42);padding:13px;margin:12px 0}
.phone-login-title{font-size:15px;font-weight:600;color:var(--teal-900);margin-bottom:4px}
.phone-login-card p{font-size:12.5px;margin-bottom:10px}
.account-terms{font-size:11.5px;line-height:1.55;color:var(--muted);margin-top:8px}
.account-divider{display:flex;align-items:center;gap:10px;margin:14px 0 10px;color:var(--muted);font-size:12px}
.account-divider:before,.account-divider:after{content:"";height:.5px;background:var(--line);flex:1}
.wechat-entry{border:.5px solid var(--line);border-radius:12px;background:#fff;padding:11px 12px;margin:0 0 10px}
.wechat-entry b{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.wechat-entry span{display:block;font-size:12.5px;color:var(--muted);line-height:1.55}
.invite-entry{display:flex;gap:8px;margin:10px 0}
.invite-entry input{flex:1;height:42px;border:.5px solid var(--line);border-radius:12px;padding:0 12px;font-size:15px;text-transform:uppercase;outline:none}
.invite-entry input:focus{border-color:var(--teal)}
.invite-entry button{background:var(--teal);color:#fff;border:none;border-radius:12px;padding:0 18px;font-size:14px;white-space:nowrap}
.invite-follow{margin:12px 0 12px;padding:13px;border:.5px solid rgba(15,110,86,.18);border-radius:12px;background:rgba(225,245,238,.34);text-align:center}
.invite-follow-title{font-size:14px;font-weight:500;color:var(--teal-900);margin-bottom:8px}
.invite-qr-wrap{width:168px;height:168px;margin:0 auto 8px;border-radius:10px;background:#fff;border:.5px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.invite-qr-wrap img{width:156px;height:156px;object-fit:contain;display:block}
.invite-follow p{margin:0 0 10px;font-size:12.5px;line-height:1.6;color:var(--muted);text-align:left}
.invite-follow button{height:34px;border:.5px solid rgba(15,110,86,.28);border-radius:9px;background:#fff;color:var(--teal);padding:0 12px;font-size:13px}
.invite-code-box{border:.5px solid rgba(15,110,86,.22);border-radius:12px;background:rgba(225,245,238,.42);padding:12px;margin:10px 0;text-align:center}
.invite-code-box span{display:block;font-size:12px;color:var(--muted);margin-bottom:3px}
.invite-code-box b{display:block;font-size:24px;line-height:1.2;letter-spacing:0;color:var(--teal-900)}
.invite-bind{margin:12px 0 10px;padding:12px;border:.5px solid var(--line);border-radius:12px;background:#fff}
.invite-bind-title{font-size:14px;font-weight:500;color:var(--teal-900);margin-bottom:4px}
.feedback-text{width:100%;min-height:108px;resize:vertical;border:.5px solid var(--line);border-radius:12px;padding:10px 12px;font-size:14px;line-height:1.6;outline:none;box-sizing:border-box}
.feedback-text:focus,.feedback-contact:focus{border-color:var(--teal)}
.feedback-contact{width:100%;height:40px;border:.5px solid var(--line);border-radius:10px;padding:0 10px;font-size:14px;margin:8px 0 10px;box-sizing:border-box}
.skeleton{height:14px;border-radius:7px;background:linear-gradient(90deg,#eee,#f8f8f8,#eee);
  background-size:200% 100%;animation:skel 1.1s infinite;margin:10px 0}
@keyframes skel{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* tabbar */
.tabbar{position:fixed;bottom:0;left:0;right:0;height:60px;background:#fff;border-top:.5px solid var(--line);
  display:flex;max-width:560px;margin:0 auto}
.tab{flex:1;background:none;border:none;font-size:12px;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px}
.tab .ti{font-size:20px}
.tab.active{color:var(--teal);font-weight:500}

@media (max-width:360px){
  .new-chat{width:30px;padding:0}
  .new-chat span{display:none}
}

/* 付费墙 */
.paywall{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:40;display:flex;align-items:flex-end}
.paywall-box{background:#fff;width:100%;max-width:560px;margin:0 auto;border-radius:18px 18px 0 0;padding:18px 16px 24px}
.pw-head{display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:500;margin-bottom:14px}
.pw-head button{background:none;border:none;font-size:22px;color:var(--muted)}
.products{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.prod{border:.5px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.prod.beta-pay-note{grid-column:1/-1;text-align:left;background:var(--teal-50);border-color:rgba(15,110,86,.2)}
.prod.member{border:1.5px solid var(--teal)}
.prod .name{font-size:13px}
.prod .price{font-size:18px;font-weight:500;color:var(--teal);margin:4px 0}
.privacy{background:var(--teal-50);color:var(--teal-900);font-size:12px;padding:9px 11px;border-radius:10px;margin:10px 0}
input[type=file]{display:block;margin:10px 0;font-size:13px}
#submitCert{background:var(--teal);color:#fff;border:none;border-radius:10px;padding:10px 18px;font-size:14px}
.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.8);color:#fff;
  padding:9px 16px;border-radius:20px;font-size:13px;z-index:60}
.maintenance-notice{position:fixed;inset:0;z-index:95;background:rgba(246,247,246,.92);
  backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:22px}
.maintenance-card{width:100%;max-width:430px;background:#fff;border:.5px solid var(--line);border-radius:16px;
  padding:20px;display:flex;gap:14px;box-shadow:0 18px 50px rgba(20,38,32,.12)}
.maintenance-icon{width:42px;height:42px;flex:0 0 auto;border-radius:12px;background:var(--teal-50);
  color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:22px}
.maintenance-card h3{margin:0 0 8px;font-size:19px;font-weight:600;color:var(--teal-900)}
.maintenance-card p{margin:0;color:var(--ink);font-size:14px;line-height:1.7}
.maintenance-card span{display:block;margin-top:8px;color:var(--muted);font-size:12px;line-height:1.6}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.48);z-index:70;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{width:100%;max-width:420px;background:#fff;border-radius:14px;padding:18px;border:.5px solid var(--line)}
.modal-box h3{margin:0 0 8px;font-size:17px;font-weight:500}
.modal-box p{margin:0 0 14px;font-size:13px;color:var(--muted);line-height:1.7}
.modal-box button:not(.ghost){width:100%;background:var(--teal);color:#fff;border:none;border-radius:10px;padding:12px;font-size:14px;margin-bottom:8px}
.collect-box{max-height:86vh;overflow:auto}
.collect-folder-list{display:flex;flex-direction:column;gap:8px;margin:0 0 12px;max-height:42vh;overflow:auto}
.collect-folder-list button{width:100%;min-height:40px;border:.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 11px;font-size:13px;text-align:left;margin:0}
.collect-folder-list button span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.collect-folder-list button i{color:var(--teal);font-size:17px;flex:0 0 auto}
.collect-folder-count{color:var(--muted);font-size:12px;flex:0 0 auto}
.collect-empty{border:.5px dashed rgba(15,110,86,.25);border-radius:10px;background:rgba(225,245,238,.28);
  color:var(--muted);font-size:13px;text-align:center;padding:14px 10px}
.collect-new{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;margin:4px 0 8px}
.collect-new input{min-width:0;height:40px;border:.5px solid var(--line);border-radius:10px;padding:0 11px;font-size:14px;outline:none}
.collect-new input:focus{border-color:var(--teal)}
.collect-new button{width:auto!important;height:40px;padding:0 12px!important;margin:0!important;white-space:nowrap}
@media (max-width:380px){.collect-new{grid-template-columns:1fr}.collect-new button{width:100%!important}}

/* ---------- 分享海报弹层 ---------- */
.poster-modal{position:fixed;inset:0;z-index:80;display:flex;align-items:flex-end;justify-content:center}
.poster-mask{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.poster-sheet{position:relative;width:100%;max-width:480px;background:#f6f7f6;border-radius:16px 16px 0 0;
  padding:16px 14px calc(14px + env(safe-area-inset-bottom));max-height:88vh;display:flex;flex-direction:column}
.poster-loading{color:var(--muted);font-size:13px;text-align:center;padding:30px 0}
.poster-loading .spin{display:inline-block;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.poster-preview{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;border-radius:12px;background:#fff}
.poster-img{display:block;width:100%;height:auto;border-radius:12px}
.poster-err{padding:40px 0;text-align:center;color:#c0392b;font-size:13px}
.poster-tip{font-size:12px;color:var(--muted);text-align:center;margin:10px 0 4px}
.poster-actions{display:flex;gap:10px;margin-top:8px}
.poster-actions button{flex:1;border:none;border-radius:10px;padding:12px;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
.poster-actions button i{font-size:16px}
.poster-actions button:not(.ghost){background:var(--teal);color:#fff}
.poster-actions .ghost{background:#fff;border:.5px solid var(--line);color:var(--ink)}
.poster-actions .ghost.copied{background:var(--teal-50);border-color:rgba(15,110,86,.28);color:var(--teal)}
/* ---------- 离屏海报画布（被 html2canvas 截图）---------- */
.poster-canvas{width:690px;background:#fff;color:#1c1c1a;font-size:22px;line-height:1.75;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.poster-canvas .pc-head{display:flex;align-items:center;justify-content:space-between;
  background:linear-gradient(135deg,#0F6E56,#04342C);color:#fff;padding:28px 32px}
.poster-canvas .pc-brand{display:flex;align-items:center;gap:16px}
.poster-canvas .pc-logo{width:64px;height:64px;border-radius:14px;background:#fff;object-fit:cover}
.poster-canvas .pc-name{font-size:30px;font-weight:600}
.poster-canvas .pc-slogan{font-size:19px;opacity:.85;margin-top:4px}
.poster-canvas .pc-date{font-size:18px;opacity:.8}
.poster-canvas .pc-q{display:flex;gap:14px;padding:28px 32px 8px}
.poster-canvas .pc-q-tag{flex:0 0 auto;width:44px;height:44px;border-radius:10px;background:var(--teal-50);
  color:var(--teal);font-size:22px;font-weight:600;display:flex;align-items:center;justify-content:center}
.poster-canvas .pc-q-text{font-size:26px;font-weight:600;color:var(--teal-900);padding-top:6px}
.poster-canvas .pc-a{padding:8px 32px 24px}
.poster-canvas .pc-a h1,.poster-canvas .pc-a h2,.poster-canvas .pc-a h3{font-size:24px;font-weight:600;
  color:var(--teal-900);margin:22px 0 8px;border-left:5px solid var(--teal);padding-left:12px}
.poster-canvas .pc-a h1,.poster-canvas .pc-a h2,.poster-canvas .pc-a h3{line-break:strict;word-break:keep-all;overflow-wrap:anywhere}
.poster-canvas .pc-a p{margin:8px 0}
.poster-canvas .pc-a ul,.poster-canvas .pc-a ol{padding-left:30px;margin:8px 0}
.poster-canvas .pc-a li{margin:4px 0}
.poster-canvas .pc-a table{width:100%;border-collapse:collapse;font-size:18px;margin:12px 0}
.poster-canvas .pc-a th,.poster-canvas .pc-a td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.poster-canvas .pc-a th{background:var(--teal-50);color:var(--teal-900)}
.poster-canvas .pc-a .cite{color:var(--teal);font-size:16px;vertical-align:super}
.poster-canvas .pc-foot{display:flex;align-items:center;gap:18px;background:var(--teal-50);
  padding:24px 32px;margin-top:8px}
.poster-canvas .pc-qr{width:120px;height:120px;border-radius:10px;background:#fff;object-fit:contain;flex:0 0 auto}
.poster-canvas .pc-foot-title{font-size:22px;font-weight:600;color:var(--teal-900)}
.poster-canvas .pc-foot-sub{font-size:16px;color:var(--muted);margin-top:6px;line-height:1.6}
.poster-canvas .pc-src{margin:0 32px 16px;padding:16px 18px;background:#f7fbf9;border:1px solid var(--line);border-radius:12px}
.poster-canvas .pc-src-title{font-size:18px;font-weight:600;color:var(--teal-900);margin-bottom:10px}
.poster-canvas .pc-src-row{font-size:15px;color:var(--muted);line-height:1.6;margin:6px 0;word-break:break-all}
.poster-canvas .pc-src-row b{color:var(--teal)}
.poster-canvas .pc-src-private{color:var(--ink);opacity:.85}

/* ---------- PDF 文件生成画布 ---------- */
.pdf-canvas{position:fixed;left:-9999px;top:0;width:794px;background:#fff;color:#1c1c1a;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-size:18px;line-height:1.72;padding:42px}
.pdf-canvas h1{font-size:28px;color:#04342C;margin:0 0 22px;font-weight:700}
.pdf-canvas h2{font-size:24px;color:#04342C;margin:26px 0 10px;font-weight:650}
.pdf-canvas h3{font-size:21px;color:#0F6E56;margin:22px 0 8px;font-weight:650}
.pdf-canvas p{margin:8px 0}
.pdf-canvas ul,.pdf-canvas ol{padding-left:28px;margin:8px 0}
.pdf-canvas li{margin:4px 0}
.pdf-canvas table{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0;display:table;overflow:visible}
.pdf-canvas th,.pdf-canvas td{border:1px solid #b7c2bd;padding:7px 9px;text-align:left;vertical-align:top;max-width:none;word-break:break-word}
.pdf-canvas th{background:#E1F5EE;color:#04342C;font-weight:650}
.pdf-table-page{min-height:1123px}
.pdf-table-page h1{margin-bottom:26px}
.pdf-table-page table{width:auto;max-width:none;font-size:16px;margin:0;table-layout:auto}
.pdf-table-page th,.pdf-table-page td{padding:9px 10px}
.pdf-question{border-left:5px solid #0F6E56;background:#E1F5EE;padding:13px 16px;margin:0 0 22px;color:#04342C}
.pdf-canvas .source-summary,.pdf-canvas .source-row,.pdf-canvas .evidence-boundary{border:1px solid #d8e5df;border-radius:10px;padding:12px 14px;margin:9px 0;background:#f7fbf9}
.pdf-canvas .cite{color:#0C447C;font-size:12px}
.pdf-canvas .srcbar,.pdf-canvas .answer-actions,.pdf-canvas .table-tools,.pdf-canvas button{display:none!important}
.pdf-sources{margin-top:22px}
.pdf-disclaimer{margin-top:22px;color:#6b6b66;font-size:14px;border-top:1px solid #ddd;padding-top:12px}

/* ---------- 分享落地页 share.html ---------- */
.share-body{padding:0}
.share-wrap{max-width:560px;margin:0 auto;padding:16px 14px 40px}
.share-head{display:flex;align-items:center;gap:12px;padding:14px 4px 18px}
.share-name{font-size:17px;font-weight:600}
.share-slogan{font-size:12px;color:var(--muted);margin-top:2px}
.share-loading{padding:60px 0;text-align:center;color:var(--muted);font-size:14px}
.share-err{padding:60px 0;text-align:center;color:#c0392b;font-size:14px}
.share-q{display:flex;gap:10px;background:var(--card);border:.5px solid var(--line);
  border-radius:var(--radius);padding:14px;margin-bottom:12px}
.share-q-tag{flex:0 0 auto;width:30px;height:30px;border-radius:8px;background:var(--teal-50);
  color:var(--teal);font-weight:600;display:flex;align-items:center;justify-content:center}
.share-q-text{font-size:16px;font-weight:600;color:var(--teal-900);padding-top:3px}
.share-a{background:var(--card);border:.5px solid var(--line);border-radius:var(--radius);padding:16px}
.share-a .cite{color:var(--teal);font-size:11px}
.share-sources{background:var(--card);border:.5px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-top:12px}
.share-ref-head{padding:13px 14px 10px;background:#f7fbf9;border-bottom:.5px solid var(--line)}
.share-ref-title{display:flex;align-items:center;gap:7px;color:var(--teal-900);font-size:15px}
.share-ref-title .ti{color:var(--teal)}
.share-ref-sub{font-size:12px;color:var(--muted);line-height:1.6;margin-top:5px}
.share-ref-row{font-size:12px;line-height:1.65}
.share-ref-row b{color:var(--teal)}
.share-disclaimer{font-size:12px;color:var(--muted);line-height:1.7;margin:14px 4px}
.share-cta{display:flex;align-items:center;gap:14px;background:var(--teal-50);
  border-radius:var(--radius);padding:16px;margin-top:18px}
.share-qr{width:84px;height:84px;border-radius:10px;background:#fff;object-fit:contain;flex:0 0 auto}
.share-cta-title{font-size:15px;font-weight:600;color:var(--teal-900)}
.share-cta-sub{font-size:13px;color:var(--muted);margin-top:4px}
.share-open{display:block;text-align:center;margin-top:16px;padding:13px;border-radius:10px;
  background:var(--teal);color:#fff;text-decoration:none;font-size:14px}

.share-body{background:#eef3f1}
.share-wrap{max-width:640px;padding:0 14px 36px}
.share-head{margin:0 -14px 0;padding:18px 18px 42px;background:linear-gradient(135deg,#0F6E56,#04342C);color:#fff}
.share-head .logo{border:none;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.share-name{font-size:19px;font-weight:600}
.share-slogan{color:rgba(255,255,255,.78)}
#shareContent{margin-top:-24px}
.share-q{border:none;border-radius:16px;padding:16px 16px 14px;box-shadow:0 10px 28px rgba(4,52,44,.10)}
.share-q-tag{width:34px;height:34px;border-radius:10px;font-size:15px}
.share-q-text{font-size:18px;line-height:1.5}
.share-a{border:none;border-radius:16px;padding:18px 18px 20px;box-shadow:0 10px 28px rgba(4,52,44,.08)}
.share-a h1,.share-a h2,.share-a h3{font-size:16px;font-weight:600;color:var(--teal-900);margin:18px 0 8px;
  border-left:4px solid var(--teal);padding-left:10px}
.share-a h1,.share-a h2,.share-a h3{line-break:strict;word-break:keep-all;overflow-wrap:anywhere}
.share-a p{margin:8px 0}
.share-a table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:13px;margin:10px 0}
.share-a thead,.share-a tbody,.share-a tr{width:100%}
.share-a th,.share-a td{min-width:92px;vertical-align:top}
.share-disclaimer{background:#fff;border:.5px solid var(--line);border-radius:12px;padding:10px 12px;margin:12px 0 0}
.share-cta{box-shadow:0 8px 22px rgba(4,52,44,.07);border:.5px solid rgba(15,110,86,.12)}
.share-open{box-shadow:0 8px 18px rgba(15,110,86,.18);font-weight:500}