/* ===================== 各功能视图 ===================== */
/* 包含：
   - 账号中心：.pc-*、.ac-*（ac-page/ac-hero/ac-upgrade/ac-stats/ac-section/ac-list/ac-row/ac-sel/ac-seg/ac-theme-*/ac-mode-*）
   - 图片：.img-grid、.img-card、.img-*、.img-preview-*、.up-tile*
   - 回收站：.recycle-item、.recycle-batch、.rb-*、#rbCount、#dbCount、.rc-cb
   - 密钥/分享：.key-*、.limit-*、.lg-*（limit-group 系列）、.share-*、.fmt-*、.card-soft、.copy-row、.switch、.panel、.sel-doc、.field
   - 备份：.bk-*、.backup-status、.progress
   - AI 助手：.ai-*（ai-doc-tools/ai-doc-btn/ai-doc-result-*/ai-doc-stop-btn/ai-ctx/ai-quota/ai-clear/ai-pick/ai-msgs/
     ai-empty/ai-bar/ai-input-*/ai-expand/ai-send/ai-pick-panel/ai-expand-overlay/ae-*/ai-wide/ai-split/ai-doc*/ai-ctx-list/
     ai-chat/ai-view-btn 等）、.bubble、.bubble-wrap、.msg-acts、.codeblk、.sel-float、.cursor、@keyframes aiStopPulse/selFloatIn
   - 会员：.upg-*（upg-features/upg-feat/upg-pricing/upg-price/upg-qr）、.m-doc-list、.m-doc-item
*/

/* ===================== 个人中心 modal（顶部按钮打开） ===================== */
/* 个人中心复用账号中心 .ac-hero / .ac-ava / .ac-info / .ac-vip-tag 结构，
   .ac-hero.is-vip 为会员用户使用柔和渐变（账号中心 .ac-hero 未用 is-vip，此处单独定义）。 */
.ac-hero.is-vip{background:var(--grad-primary-soft);color:var(--md-on-primary-container);box-shadow:0 4px 14px rgba(var(--brand-rgb),.18)}
.ac-hero.is-vip .ac-ava{background:var(--md-primary-container);color:var(--md-primary);border-color:var(--md-primary)}
.ac-hero.is-vip .ac-info .ac-vip-tag{background:var(--md-primary-container);color:var(--md-primary)}
/* ===================== 用户名行（b + 编辑按钮 + 内联编辑表单） =====================
   .ac-hero .ac-info b 默认 display:block，此处重置为 inline 让 b 与编辑按钮共处一行。 */
.pc-name-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:3px}
.ac-hero .ac-info .pc-name-row b{display:inline;margin-bottom:0}
.pc-edit-btn{display:grid;place-items:center;width:24px;height:24px;border:none;border-radius:50%;background:transparent;color:inherit;cursor:pointer;transition:all .15s;opacity:.85}
.pc-edit-btn:hover{background:rgba(255,255,255,.22);opacity:1}
.ac-hero.is-vip .pc-edit-btn:hover{background:var(--md-primary-container);color:var(--md-primary)}
.pc-edit-btn:disabled{opacity:.4;cursor:not-allowed}
.pc-edit-btn svg{width:13px;height:13px}
.pc-name-edit{display:flex;align-items:center;gap:6px;flex:1;min-width:160px}
.pc-name-edit input{flex:1;min-width:0;padding:5px 10px;border:1.5px solid var(--md-primary);border-radius:var(--md-rs-sm);background:var(--md-surface);color:var(--ink);font-size:14px;font-family:inherit;outline:none}
.pc-name-ok{padding:5px 12px;border:none;border-radius:var(--md-rs-sm);background:var(--grad-primary);color:#fff;font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit;white-space:nowrap}
.pc-name-cancel{padding:5px 12px;border:1.5px solid var(--md-outline-var);border-radius:var(--md-rs-sm);background:transparent;color:var(--muted);font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit;white-space:nowrap}

/* ===================== 信息列表：邮箱 / 会员状态 / 用户名修改次数 ===================== */
/* 每行带图标 + 标签 + 值，清晰分层，避免数据堆叠 */
.pc-info-list{display:flex;flex-direction:column;gap:2px;background:var(--md-surface-container);border:1px solid var(--md-outline-var);
  border-radius:var(--md-rs-md);padding:4px 14px;margin-bottom:14px}
.pc-info-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--md-outline-var)}
.pc-info-row:last-child{border-bottom:none}
.pc-ir-ic{width:30px;height:30px;border-radius:8px;background:var(--md-primary-container);color:var(--md-primary);
  display:grid;place-items:center;flex:none}
.pc-ir-ic svg{width:16px;height:16px}
.pc-ir-label{font-size:13px;color:var(--md-muted);flex:none;min-width:72px}
.pc-ir-val{font-size:13.5px;color:var(--ink);font-weight:500;flex:1;min-width:0;word-break:break-all;text-align:right}

.pc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.pc-stat{background:var(--md-surface-container);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);padding:16px 12px;text-align:center}
.pc-stat b{font-size:22px;font-weight:700;color:var(--md-primary);display:block}
.pc-stat span{font-size:12.5px;color:var(--muted)}

.ac-page{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.ac-hero,.ac-stats{flex:none}
.ac-grid{display:flex;flex-direction:column;gap:16px}

.ac-hero{position:relative;overflow:hidden;background:var(--grad-primary);border:none;border-radius:var(--md-rs-lg);padding:24px;color:var(--md-on-primary);display:flex;align-items:center;gap:16px}
.ac-hero::before{content:"";position:absolute;top:-40%;right:-20%;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.1);pointer-events:none}
.ac-hero::after{content:"";position:absolute;bottom:-30%;left:-10%;width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,.08);pointer-events:none}
.ac-hero .ac-ava{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.2);backdrop-filter:blur(8px);
  display:grid;place-items:center;font-weight:700;font-size:24px;color:#fff;flex:none;border:2px solid rgba(255,255,255,.3);z-index:1;overflow:hidden}
.ac-hero .ac-ava img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.ac-hero .ac-info{flex:1;min-width:0;z-index:1}
.ac-hero .ac-info b{font-size:18px;font-weight:700;display:block;margin-bottom:3px}
.ac-hero .ac-info .ac-email{font-size:12px;opacity:.85;display:block;margin-bottom:6px;word-break:break-all}
.ac-hero .ac-info .ac-vip-tag{font-size:11px;font-weight:600;padding:3px 10px;border-radius:var(--md-rs-full);background:rgba(255,255,255,.22);display:inline-flex;align-items:center;gap:4px;backdrop-filter:blur(4px)}
.ac-hero .ac-info .ac-vip-tag.not-vip{background:rgba(0,0,0,.15)}
.ac-hero .ac-info small{font-size:11.5px;opacity:.8;display:block;margin-top:4px}

.ac-hero .ac-donate{position:relative;z-index:1;flex:none;display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 12px;border-radius:var(--md-rs-md);background:rgba(255,255,255,.18);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.25);cursor:pointer;transition:background .2s,transform .15s;color:#fff}
.ac-hero .ac-donate:hover{background:rgba(255,255,255,.28)}
.ac-hero .ac-donate:active{transform:scale(.96)}
.ac-hero .ac-donate svg{width:22px;height:22px}
.ac-hero .ac-donate span{font-size:11px;font-weight:600;line-height:1.2;text-align:center}

/* ===================== 开通会员横幅 ===================== */
.ac-upgrade{display:flex;align-items:center;gap:14px;width:100%;padding:14px 18px;border-radius:var(--md-rs-md);
  background:var(--grad-primary);color:var(--md-on-primary);border:none;cursor:pointer;text-align:left;
  box-shadow:var(--shadow-brand);transition:transform .15s,box-shadow .2s;font-family:inherit}
.ac-upgrade:hover{transform:translateY(-1px);box-shadow:var(--shadow-brand-hover)}
.ac-upgrade:active{transform:scale(.99)}
.ac-upgrade .up-ic{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.25);display:grid;place-items:center;flex:none}
.ac-upgrade .up-ic svg{width:21px;height:21px;color:var(--md-on-primary)}
.ac-upgrade .up-meta{flex:1;min-width:0}
.ac-upgrade .up-meta b{display:block;font-size:14.5px;font-weight:700;color:inherit;line-height:1.3}
.ac-upgrade .up-meta small{display:block;font-size:11.5px;color:rgba(255,255,255,.88);margin-top:2px;line-height:1.4}
.ac-upgrade .up-arrow{flex:none;color:var(--md-on-primary);display:grid;place-items:center}
.ac-upgrade .up-arrow svg{width:18px;height:18px}
/* ===================== 已开通会员：柔和主题色 ===================== */
.ac-upgrade.is-vip{background:var(--grad-primary-soft);color:var(--md-on-primary-container);box-shadow:0 4px 14px rgba(var(--brand-rgb),.18)}
.ac-upgrade.is-vip .up-ic{background:rgba(var(--brand-rgb),.14)}
.ac-upgrade.is-vip .up-ic svg{color:var(--md-primary)}
.ac-upgrade.is-vip .up-meta b{color:var(--md-on-primary-container)}
.ac-upgrade.is-vip .up-meta small{color:var(--md-primary)}
.ac-upgrade.is-vip .up-arrow{color:var(--md-primary)}
/* ===================== 永久会员卡片：信息展示态，无点击反馈 ===================== */
.ac-upgrade[data-forever="1"]{cursor:default}
.ac-upgrade[data-forever="1"]:hover{transform:none;box-shadow:0 4px 14px rgba(var(--brand-rgb),.18)}
.ac-upgrade[data-forever="1"]:active{transform:none}

.ac-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:var(--md-surface-container);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-md);overflow:hidden}
.ac-stat-item{padding:14px 8px;text-align:center;position:relative}
.ac-stat-item:not(:last-child)::after{content:"";position:absolute;right:0;top:20%;height:60%;width:1px;background:var(--md-outline-var)}
.ac-stat-item b{font-size:20px;font-weight:700;color:var(--md-primary);display:block;line-height:1.2}
.ac-stat-item span{font-size:11.5px;color:var(--md-muted)}

.ac-section{display:flex;flex-direction:column}
.ac-sec-title{font-size:12.5px;font-weight:700;color:var(--md-muted);margin-bottom:8px;letter-spacing:.04em;padding:0 4px}

.ac-list{display:flex;flex-direction:column;gap:6px}
.ac-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;background:var(--md-surface);
  border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);cursor:pointer;transition:all .15s;
  font-size:13.5px;font-weight:600;color:var(--md-on-surface);text-align:left;min-height:56px;line-height:1.5}
.ac-row:hover{background:var(--md-primary-container);border-color:var(--md-primary)}
.ac-row .r-ic{width:32px;height:32px;border-radius:var(--md-rs-sm);background:var(--md-primary-container);color:var(--md-primary);
  display:grid;place-items:center;flex:none;transition:all .15s}
.ac-row:hover .r-ic{background:var(--md-primary);color:var(--md-on-primary)}
.ac-row .r-ic svg{width:16px;height:16px}
.ac-row .r-meta{flex:1;min-width:0}
/* ===================== 显式 line-height 确保 button 与 div 卡片高度一致 ===================== */
/* <button> 默认 line-height:normal (~1.2)，<div> 继承 ~1.5，会导致 .r-meta 内 b+small 高度不同，
   从而使快捷功能（button）与文档偏好（div）卡片高度不对齐。显式设置 line-height 统一。 */
.ac-row .r-meta b{font-size:13.5px;font-weight:600;display:block;line-height:1.4}
.ac-row .r-meta small{font-size:11.5px;color:var(--md-muted);font-weight:400;line-height:1.4}
.ac-row .r-arrow{color:var(--md-muted);flex:none;transition:transform .15s}
.ac-row:hover .r-arrow{transform:translateX(3px);color:var(--md-primary)}
.ac-row .r-arrow svg{width:16px;height:16px}
.ac-row.danger{color:var(--md-error)}
.ac-row.danger .r-ic{background:var(--md-error-container);color:var(--md-error)}
.ac-row.danger:hover{background:var(--md-error-container);border-color:var(--md-error)}
.ac-row.danger:hover .r-ic{background:var(--md-error);color:#fff}

.ac-row.ac-setting{cursor:default}
.ac-row.ac-setting:hover{background:var(--md-surface);border-color:var(--md-outline-var)}
.ac-row.ac-setting > span:not(.r-ic):not(.ac-seg){flex:1;min-width:0}
.ac-row.ac-setting .ac-seg{flex:none}
.ac-sel{padding:7px 10px;border:1.5px solid var(--md-outline-var);border-radius:9px;background:var(--md-surface);color:var(--md-on-surface);font-size:13px;outline:none;cursor:pointer}
.ac-sel:focus{border-color:var(--md-primary)}
.ac-seg{display:inline-flex;align-items:stretch;gap:0;background:var(--md-surface);border:1.5px solid var(--md-outline-var);border-radius:9px;overflow:hidden;height:32px}
.ac-seg button{padding:0 12px;font-size:13px;font-weight:600;color:var(--md-muted);background:transparent;cursor:pointer;transition:all .15s;border:none;min-height:0;line-height:1}
.ac-seg button.active{background:var(--md-primary-container);color:var(--md-primary)}

.ac-theme-grid{display:flex;flex-wrap:wrap;gap:10px;padding:12px 14px;background:var(--md-surface);
  border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm)}
.ac-theme-btn{width:36px;height:36px;border-radius:50%;border:2px solid transparent;cursor:pointer;
  position:relative;padding:0;box-shadow:0 2px 6px rgba(0,0,0,.12);transition:transform .15s,border-color .15s}
.ac-theme-btn:hover{transform:scale(1.1)}
.ac-theme-btn.active{border-color:var(--md-on-surface)}
.ac-theme-btn.active::after{content:"";position:absolute;top:50%;left:50%;width:13px;height:7px;
  border-left:2.5px solid #fff;border-bottom:2.5px solid #fff;
  transform:translate(-50%,-70%) rotate(-45deg)}

.ac-mode-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;background:var(--md-surface);
  border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);cursor:pointer;transition:all .15s}
.ac-mode-row:hover{background:var(--md-primary-container);border-color:var(--md-primary)}
.ac-mode-row .r-ic{width:32px;height:32px;border-radius:var(--md-rs-sm);background:var(--md-primary-container);color:var(--md-primary);
  display:grid;place-items:center;flex:none;transition:all .15s}
.ac-mode-row:hover .r-ic{background:var(--md-primary);color:var(--md-on-primary)}
.ac-mode-row .r-ic svg{width:16px;height:16px}
.ac-mode-row .r-meta{flex:1;min-width:0}
.ac-mode-row .r-meta b{font-size:13.5px;font-weight:600;display:block}
.ac-mode-row .r-meta small{font-size:11.5px;color:var(--md-muted);font-weight:400}
.ac-mode-seg{display:inline-flex;gap:0;background:var(--md-surface);border:1.5px solid var(--md-outline-var);border-radius:9px;overflow:hidden;flex:none}
.ac-mode-seg button{padding:6px 12px;font-size:13px;font-weight:600;color:var(--md-muted);background:transparent;cursor:pointer;transition:all .15s;border:none}
.ac-mode-seg button.active{background:var(--md-primary-container);color:var(--md-primary)}

/* ===================== 图片 ===================== */
.img-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.img-card{background:var(--md-surface);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);overflow:hidden;
  position:relative;transition:all .15s;touch-action:manipulation}
.img-card:hover{border-color:var(--md-primary);box-shadow:none}
.img-card .thumb{aspect-ratio:1/1;background:var(--md-surface-container-high);display:grid;place-items:center;overflow:hidden;cursor:pointer}
.img-card .thumb img{width:100%;height:100%;object-fit:cover}
.img-card .thumb img.img-broken{width:48px;height:48px;object-fit:contain;opacity:.35;filter:grayscale(1)}
.img-card .cap-actions{display:flex;gap:0;border-top:1px solid var(--md-outline-var)}
.img-card .img-act{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;padding:9px 4px;border:none;background:var(--md-surface-container);
  color:var(--muted);font-size:11.5px;font-weight:600;cursor:pointer;transition:background .12s}
.img-card .img-act svg{width:14px;height:14px;flex:none}
.img-card .img-act:hover{background:var(--md-surface-container-high);color:var(--md-primary)}
.img-card .img-act.danger:hover{background:var(--md-error-container);color:var(--err)}
.img-card .img-act + .img-act{border-left:1px solid var(--md-outline-var)}
.up-tile{border:2px dashed var(--md-primary);border-radius:var(--md-rs-sm);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  color:var(--md-primary);cursor:pointer;aspect-ratio:1/1;transition:all .18s;font-size:13px;text-align:center;background:var(--grad-primary-soft)}
.up-tile:hover{border-color:var(--md-primary);color:var(--md-primary);background:var(--md-primary-container)}
.up-tile svg{width:26px;height:26px;flex:none}
/* 空状态上传按钮：限定宽度，避免 aspect-ratio:1/1 撑满整个区域 */
.up-tile-empty{max-width:180px;margin:8px auto 0}
.up-tile-empty .up-tile{aspect-ratio:auto;min-height:120px;padding:20px}

.img-preview-scrim{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.82);
  display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;pointer-events:none;transition:opacity .22s}
.img-preview-scrim.show{opacity:1;pointer-events:auto}
.img-preview-box{position:relative;max-width:90vw;max-height:90vh;display:flex;align-items:center;justify-content:center}
.img-preview-box img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:var(--md-rs-sm);box-shadow:0 8px 32px rgba(0,0,0,.5);transition:opacity .2s ease}
.img-preview-loading{position:absolute;width:32px;height:32px;border:3px solid rgba(255,255,255,.15);border-top-color:rgba(255,255,255,.8);border-radius:50%;animation:img-spin .8s linear infinite}
@keyframes img-spin{to{transform:rotate(360deg)}}

/* ===================== 回收站 ===================== */
.recycle-item{display:flex;align-items:center;gap:14px;background:var(--md-surface);border:1px solid var(--md-outline-var);
  border-radius:var(--md-rs-sm);padding:14px 16px;margin-bottom:8px;transition:all .15s}
.recycle-item:hover{background:var(--md-surface-container-high);border-color:var(--md-primary)}
/* 多选模式下禁用回收站卡片的单篇恢复/永久删除按钮，点击穿透到卡片切换选中 */
body.multi-on [data-restore],
body.multi-on [data-purge]{pointer-events:none;opacity:.3}
.recycle-item .ic{width:36px;height:36px;border-radius:var(--md-rs-sm);background:var(--md-error-container);color:var(--err);display:grid;place-items:center;flex:none}
.recycle-item .ic svg{width:18px;height:18px}
.recycle-item .info{flex:1;min-width:0}
.recycle-item .info b{font-size:14px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600}
.recycle-item .info small{font-size:11.5px;color:var(--muted)}
.recycle-item .acts{display:flex;gap:6px;flex:none}

.recycle-batch{display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:transparent;border:0 solid transparent;border-radius:var(--md-rs-sm);
  max-height:0;padding:0 20px;margin:0 20px 0;overflow:hidden;
  box-shadow:none;opacity:0;pointer-events:none;transform:translateY(-16px);
  transition:max-height .25s cubic-bezier(.2,.9,.3,1),transform .25s cubic-bezier(.2,.9,.3,1),padding .25s cubic-bezier(.2,.9,.3,1),margin .25s cubic-bezier(.2,.9,.3,1),border-color .2s ease,opacity .2s ease}
.recycle-batch.show{
  max-height:220px;padding:10px 20px;margin:0 20px 10px;
  border:1px solid var(--md-outline-var);border-top:none;border-radius:0 0 var(--md-rs-sm) var(--md-rs-sm);
  opacity:1;pointer-events:auto;transform:translateY(0);

  position:sticky;top:64px;z-index:4;background:var(--md-surface);
  transition:max-height .25s cubic-bezier(.2,.9,.3,1),transform .25s cubic-bezier(.2,.9,.3,1),padding .25s cubic-bezier(.2,.9,.3,1),margin .25s cubic-bezier(.2,.9,.3,1),border-color .2s ease,opacity .2s ease}

body.topbar-hide .recycle-batch.show{top:0;transition:max-height .25s cubic-bezier(.2,.9,.3,1),transform .25s cubic-bezier(.2,.9,.3,1),padding .25s cubic-bezier(.2,.9,.3,1),margin .25s cubic-bezier(.2,.9,.3,1),border-color .2s ease,opacity .2s ease,top .25s cubic-bezier(.2,.9,.3,1)}
.recycle-batch #rbCount{font-size:13px;font-weight:500;color:var(--ink)}
.recycle-batch #rbCount.hint{color:var(--muted);font-weight:500}
.recycle-batch #dbCount.hint{color:var(--muted);font-weight:500}
.recycle-batch .rb-acts{display:flex;gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.recycle-batch .rb-acts::-webkit-scrollbar{display:none}
.recycle-batch .rb-acts .mini{flex:none;white-space:nowrap}
.recycle-batch .rb-acts .mini:disabled{opacity:.45;cursor:not-allowed}

.rc-cb{flex:none;width:18px;height:18px;border:2px solid var(--md-outline);border-radius:4px;cursor:pointer;
  transition:.12s;display:grid;place-items:center}
.rc-cb.checked{background:var(--md-primary);border-color:var(--md-primary)}
.rc-cb.checked::after{content:'';width:10px;height:6px;border-left:2.5px solid #fff;border-bottom:2.5px solid #fff;
  transform:rotate(-45deg) translate(1px,-1px)}

/* ===================== 密钥/分享 ===================== */
.panel{padding:2px;max-width:920px;width:100%;margin:0 auto;border-radius:var(--md-rs-lg)}
.p-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.p-head-acts{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap}
.p-head h2{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;color:var(--md-primary)}
.p-head h2 svg{width:19px;height:19px;color:var(--md-primary);flex:none}
.p-head .p-sub{font-size:12px;color:var(--md-muted-2);margin-left:auto}

.sel-doc{width:100%;max-width:340px;padding:10px 12px;font-size:13.5px;border:1.5px solid var(--md-outline);
  border-radius:9px;background:var(--md-surface);outline:none;color:var(--md-ink);cursor:pointer;transition:border-color .15s}
.sel-doc:focus{border-color:var(--md-primary)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--md-muted);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;font-size:14px;border:1.5px solid var(--md-outline);
  border-radius:9px;background:var(--md-surface);outline:none;transition:border-color .15s;color:var(--md-ink);font-family:inherit}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--md-primary);background:var(--md-surface)}
.row2{display:flex;gap:12px;flex-wrap:wrap}
.row2>*{flex:1;min-width:210px}

.limit-group{margin-bottom:20px;border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);overflow:hidden;background:var(--md-surface);transition:border-color .15s}
.limit-group:hover{border-color:var(--md-primary)}
.lg-head{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;gap:10px;min-height:44px;
  background:var(--md-surface);border-bottom:1px solid var(--md-outline-var);transition:border-bottom-color .25s}
.lg-head-l{display:flex;align-items:center;gap:8px}
.lg-head-r{display:flex;align-items:center;gap:8px;flex:none}
.lg-name{font-size:14px;font-weight:700;color:var(--md-ink);cursor:pointer;user-select:none;display:flex;align-items:center;gap:6px}
.lg-name:hover{color:var(--md-primary)}
.lg-count{font-size:11.5px;color:var(--md-muted);font-weight:600;background:var(--md-surface-container);padding:2px 8px;border-radius:999px}
.lg-fold{width:32px;height:32px;border:none;border-radius:var(--md-rs-xs);background:var(--md-surface-container);color:var(--md-muted);display:grid;place-items:center;cursor:pointer;transition:background .12s;flex:none}
.lg-fold:hover{background:var(--md-surface-container-high)}
.lg-fold svg{transition:transform .25s cubic-bezier(.2,.9,.3,1)}
.limit-group.folded .lg-fold svg{transform:rotate(-90deg)}
.lg-body{padding:0;overflow:hidden;transition:max-height .25s cubic-bezier(.2,.9,.3,1),opacity .2s}
.lg-foot{display:flex;align-items:center;gap:10px;padding:11px 16px;min-height:44px;flex-wrap:wrap;background:var(--md-surface);border-top:1px solid var(--md-outline-var);overflow:hidden;transition:max-height .25s cubic-bezier(.2,.9,.3,1),opacity .2s}
.limit-group.folded .lg-body{max-height:0;padding-top:0;padding-bottom:0;opacity:0}
.limit-group.folded .lg-foot{max-height:0;min-height:0;padding-top:0;padding-bottom:0;opacity:0;border-top-color:transparent}

.limit-group.folded .lg-head{border-bottom-color:transparent;background:var(--md-surface)}
.lg-batch{display:flex;gap:6px}
.limit-row{display:flex;align-items:center;gap:10px;padding:9px 16px;border:1.5px solid transparent;border-bottom:1px solid var(--md-outline-var);transition:all .15s;cursor:pointer}
.limit-row:hover{background:var(--md-surface-container-high)}
.limit-row.selected{border-color:var(--md-surface-container-high);background:var(--md-surface-container-high)}
.limit-row:last-child{border-bottom:none}
.limit-name{flex:1;font-size:13.5px;font-weight:600;color:var(--md-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.limit-badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--md-surface-container);color:var(--muted);flex:none}
/* ===================== 仅HTML访问开启状态使用主题色 ===================== */
/* 原来用固定绿色 --md-ok，改为主题色 --md-primary，随主题切换动态变化。 */
.limit-badge.on{background:var(--md-primary-container);color:var(--md-primary);flex:none}
.lg-sel{font-size:12px;color:var(--md-muted);font-weight:600}
.lg-sep{margin-left:auto} 
.card-soft{background:var(--md-surface);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-lg);padding:18px 20px;margin-bottom:14px;animation:fadeUp .35s ease both}
.card-soft h3{font-size:14.5px;margin-bottom:4px;display:flex;align-items:center;gap:8px;font-weight:700}
.card-soft h3 svg{width:17px;height:17px;color:var(--md-primary)}
.card-soft .sub{font-size:12px;color:var(--md-muted);margin-bottom:14px;line-height:1.6}
.copy-row{display:flex;gap:8px;align-items:center}
.copy-row input{flex:1;background:var(--md-surface);border:1.5px solid var(--md-outline);font-size:12.5px;color:var(--md-ink);padding:10px 12px;border-radius:9px;outline:none}
.copy-row input:focus{border-color:var(--md-primary)}

.panel-wide{max-width:none}
.limit-grid{display:flex;gap:16px;margin-top:4px;align-items:flex-start}
.limit-grid>.mcol{flex:1;min-width:0;display:flex;flex-direction:column;gap:16px}
.limit-grid>.mcol>.limit-group{margin-bottom:0}
/* 仅一个分组时(applyMasonry 跳过,.limit-group 直接作为 .limit-grid 子元素),撑满容器宽度 */
.limit-grid>.limit-group{flex:1;min-width:0;margin-bottom:0}

.share-note{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:9px 12px;margin-bottom:14px;line-height:1.6}
.share-note b{color:var(--primary)}
.fmt-list{display:flex;flex-direction:column;gap:9px}
.fmt-row{display:flex;align-items:center;gap:10px}
.fmt-badge{flex:none;width:56px;text-align:center;font-size:11.5px;font-weight:700;padding:7px 0;border-radius:8px;
  background:var(--md-secondary-container);color:var(--md-on-secondary-container);font-family:ui-monospace,Menlo,Consolas,monospace}
/* ===================== HTML 格式标签使用主题色 ===================== */
/* 原 --md-ok-container 绿色改为 --md-primary-container，与主题色一致。 */
.fmt-badge.fmt-html{background:var(--md-primary-container);color:var(--md-on-primary-container)}
.fmt-badge.fmt-txt{background:var(--md-surface-container-high);color:var(--md-on-surface-variant)}
.fmt-badge.fmt-css{background:var(--md-primary-container);color:var(--md-on-primary-container)}
.fmt-badge.fmt-js{background:var(--md-warn-container);color:var(--md-on-warn-container)}
.fmt-badge.fmt-json{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}
.fmt-badge.fmt-lua{background:var(--md-error-container);color:var(--md-on-error-container)}
.fmt-mid{flex:1;min-width:0}
.fmt-link{display:flex;gap:7px;align-items:center}
.fmt-link input{flex:1;min-width:0;background:var(--bg);border:1.5px solid var(--line);font-size:12px;
  color:var(--ink);padding:8px 10px;border-radius:9px;outline:none;font-family:ui-monospace,Menlo,Consolas,monospace}
.fmt-lock{display:inline-block;font-size:11px;color:var(--muted-2);margin-top:4px}
.fmt-row.is-dis{opacity:.55}
.fmt-row.is-dis .fmt-link input{text-decoration:line-through}
.fmt-copy{flex:none}
.fmt-copy[disabled]{opacity:.5;cursor:not-allowed}

.keys-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:12px}
.key-card{background:var(--md-surface);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);padding:14px 16px;position:relative;animation:fadeUp .35s ease both;box-shadow:none;transition:all .18s ease}
.key-card:hover{border-color:var(--md-primary);box-shadow:none;transform:translateY(-1px)}
.key-card.k-on{border-color:var(--md-primary-container)}
.key-card .k-head{display:flex;align-items:center;gap:9px;min-width:0;margin-bottom:0}
.key-card .k-ic{width:28px;height:28px;border-radius:7px;background:var(--md-primary-container);color:var(--md-primary);display:grid;place-items:center;flex:none}
.key-card .k-ic svg{width:15px;height:15px}
.key-card .k-name{flex:1;min-width:0;font-size:13.5px;font-weight:700;color:var(--md-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.key-card .k-clear-x{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;flex:none;padding:0;font-size:16px;line-height:1;border:none;background:var(--md-surface-container);color:var(--md-error);cursor:pointer;transition:background .15s}
.key-card .k-clear-x:hover{background:var(--md-error-container)}

.key-card .k-pc-only{display:none !important}

.key-card .k-inline-fields{flex-direction:column;gap:10px;margin-top:12px;padding-top:12px;border-top:1px solid var(--md-outline-var)}
.key-card .k-inline-fields .key-field input{font-size:12.5px}

.switch{position:relative;width:44px;height:24px;border-radius:999px;background:var(--md-surface-container-high);cursor:pointer;
  transition:background .2s;flex:none;border:none;padding:0}
.switch.on{background:var(--md-primary)}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;
  transition:left .2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch.on::after{left:22px}

.key-fields{display:flex;flex-direction:column;gap:16px}
.key-field{position:relative;display:flex;align-items:center}
.key-field input{width:100%;padding:14px 56px 14px 14px;font-size:13.5px;background:var(--md-surface);
  border:1.5px solid var(--md-outline);border-radius:var(--md-rs-sm);outline:none;color:var(--md-ink);
  transition:border-color .15s;font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace;letter-spacing:.5px}
.key-field input:focus{border-color:var(--md-primary)}
.key-field .switch{position:absolute;right:9px;top:50%;transform:translateY(-50%);width:36px;height:20px;flex:none}
.key-field .switch::after{top:2px;left:2px;width:16px;height:16px}
.key-field .switch.on::after{left:18px}
.key-field .kf-label{position:absolute;left:13px;top:-7px;font-size:10px;font-weight:700;color:var(--md-primary);
  background:var(--md-surface);padding:0 5px;pointer-events:none;letter-spacing:.02em;z-index:1;display:none}

.key-field.has-val .kf-label{display:block}
.key-hint{font-size:12px;color:var(--md-muted);line-height:1.6;padding:0 2px;margin-top:14px}
.key-hint b{color:var(--md-on-surface);font-weight:600}
.key-acts-row{display:flex;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--md-outline-var)}
.key-acts-row .mini{flex:1;height:38px;font-size:13px}

/* ===================== 备份 ===================== */
.bk-grid{display:grid;grid-template-columns:1fr 300px;gap:16px;align-items:start}
.bk-card{background:var(--md-surface);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);padding:20px 22px;animation:fadeUp .35s ease both;transition:border-color .15s}
.bk-card:hover{border-color:var(--md-primary)}
.bk-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.bk-ic{width:40px;height:40px;border-radius:12px;background:var(--md-primary-container);color:var(--md-primary);display:grid;place-items:center;flex:none}
.bk-ic svg{width:20px;height:20px}
.bk-info{flex:1;min-width:0}
.bk-info b{font-size:16px;font-weight:700;color:var(--md-ink);display:block}
.bk-info small{font-size:12.5px;color:var(--md-muted);display:block;margin-top:2px}
.bk-body{margin-bottom:16px}
.bk-status{font-size:13px;color:var(--md-muted);margin-bottom:8px;flex-wrap:wrap;display:flex;align-items:center;gap:8px}
.bk-status b{color:var(--md-ink);font-weight:600}
.bk-acts{display:flex;gap:10px;flex-wrap:wrap;padding-top:16px;border-top:1px solid var(--md-outline-var)}
.bk-acts .btn-new{flex:0 0 auto;min-width:auto;padding:0 18px;justify-content:center}
.bk-tips{background:var(--md-surface-container-low);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);padding:16px 18px;animation:fadeUp .35s ease both}
.bk-tips-title{font-size:13px;font-weight:600;color:var(--md-ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.bk-tips-title svg{width:15px;height:15px;color:var(--md-primary)}
.bk-tip-row{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--md-muted);line-height:1.6;margin-bottom:10px}
.bk-tip-row:last-child{margin-bottom:0}
.bk-dot{width:5px;height:5px;border-radius:50%;background:var(--md-primary);flex:none;margin-top:7px}
.backup-status{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:6px;flex-wrap:wrap}
.backup-status b{color:var(--ink)}
.progress{height:8px;border-radius:999px;background:var(--line-2);overflow:hidden;margin:10px 0 4px;max-width:420px}
.progress>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--md-primary),var(--brand-cyan));border-radius:999px;transition:width .3s}

/* ===================== AI 助手 ===================== */
/* AI 文档工具：在 .d-tools-row 卡片内贴边，与 .d-foot-tools 一致 flex:none */
.ai-doc-tools{display:flex;align-items:center;gap:0;padding:0;flex:none}
.ai-doc-btn{display:inline-flex;align-items:center;gap:5px;height:38px;padding:0 14px;border:none;border-radius:0;
  background:transparent;color:var(--md-on-primary-container);font-size:12.5px;font-weight:600;cursor:pointer;
  transition:all .15s;font-family:inherit;white-space:nowrap;flex:none}
/* ===================== 编辑器底部 AI 按钮 hover =====================
   * 用 .d-tool-pill.ai-doc-btn 双类选择器提高特异性，覆盖下方 AI 助手 .ai-doc-btn:hover
   * hover 样式与 .d-tool-pill:hover 一致（浅紫容器），不用深紫填充避免突兀 */
.d-tool-pill.ai-doc-btn:hover{background:var(--md-primary-container);color:var(--md-primary)}
.ai-doc-btn:active{transform:scale(.96)}
.ai-doc-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.ai-doc-btn svg{width:14px;height:14px;flex:none}
.ai-doc-btn.loading{pointer-events:none;opacity:.7}

/* ===================== AI 文档处理结果展示区 ===================== */
.ai-doc-result-wrap{margin-top:14px;flex:1;min-height:0;display:flex;flex-direction:column;gap:10px;overflow:hidden}
.ai-doc-result-view{flex:1;min-height:280px;max-height:62vh;overflow:auto;padding:14px 16px;border:1.5px solid var(--md-outline-var);
  border-radius:var(--md-rs-sm);background:var(--md-surface-container-low);transition:border-color .15s}
.ai-doc-result-view.streaming{border-color:var(--md-primary)}
.ai-doc-result-view.editing{display:none}
.ai-doc-result-area{width:100%;flex:1;min-height:280px;max-height:62vh;padding:12px 14px;border:1.5px solid var(--md-outline-var);
  border-radius:var(--md-rs-sm);background:var(--md-surface);color:var(--ink);font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;line-height:1.6;resize:none;outline:none;transition:border-color .15s;box-sizing:border-box}
.ai-doc-result-area:focus{border-color:var(--md-primary)}
.ai-doc-result-wrap.editing .ai-doc-result-view{display:none}
.ai-doc-result-wrap.editing .ai-doc-result-area{display:block}

/* 复用 AI 助手 .bubble.ai .md 的渲染样式 */
.ai-doc-result-view .md p{margin:0 0 9px;word-wrap:break-word;overflow-wrap:break-word}
.ai-doc-result-view .md p:last-child{margin-bottom:0}
.ai-doc-result-view .md h1,.ai-doc-result-view .md h2,.ai-doc-result-view .md h3{margin:14px 0 7px;line-height:1.35;font-weight:700;color:var(--ink)}
.ai-doc-result-view .md h1{font-size:18px;padding-bottom:.35em;border-bottom:2px solid var(--md-outline-var);position:relative}
.ai-doc-result-view .md h1::after{content:'';position:absolute;left:0;bottom:-2px;width:54px;height:2px;background:var(--grad-primary);border-radius:999px}
.ai-doc-result-view .md h2{font-size:16px;padding-left:.8em;border-left:3px solid var(--md-primary);border-radius:3px}
.ai-doc-result-view .md h3{font-size:14.5px}
.ai-doc-result-view .md ul,.ai-doc-result-view .md ol{margin:7px 0 11px;padding-left:1.6rem}
.ai-doc-result-view .md li{margin:.32rem 0}
.ai-doc-result-view .md li::marker{color:var(--md-primary)}
.ai-doc-result-view .md a{color:var(--md-primary);text-decoration:none;border-bottom:1.5px solid rgba(var(--brand-rgb),.3)}
.ai-doc-result-view .md blockquote{margin:10px 0;padding:.6rem 1rem;border-left:3px solid var(--md-primary);border-radius:0 var(--md-rs-md) var(--md-rs-md) 0;background:var(--md-primary-container);color:var(--md-on-primary-container);font-size:.95em}
.ai-doc-result-view .md blockquote p{margin:.4em 0}
.ai-doc-result-view .md :not(pre)>code{background:var(--md-primary-container);color:var(--md-on-primary-container);padding:1.5px 6px;border-radius:5px;font-size:12.5px;font-family:ui-monospace,Menlo,Consolas,monospace}
.ai-doc-result-view .md pre{background:var(--md-surface-container-highest);border:1px solid var(--md-outline-var);border-radius:var(--md-rs-md);padding:12px 14px;overflow-x:auto;margin:11px 0}
.ai-doc-result-view .md pre code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.6;color:var(--ink);background:none;padding:0}
.ai-doc-result-view .md hr{border:none;height:1.5px;background:linear-gradient(90deg,transparent,var(--md-outline-var) 20%,var(--md-outline-var) 80%,transparent);margin:13px 0;border-radius:999px}
/* 表格横向滚动:由 .md-table-wrap 提供 overflow-x:auto,table 不再自带 overflow:hidden */
.ai-doc-result-view .md .md-table-wrap{margin:11px 0;overflow-x:auto;border-radius:var(--md-rs-md);border:1px solid var(--md-outline-var);box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch}
.ai-doc-result-view .md table{border-collapse:separate;border-spacing:0;font-size:12.5px;width:100%;min-width:280px;margin:0}
.ai-doc-result-view .md th,.ai-doc-result-view .md td{border-bottom:1px solid var(--md-outline-var);border-right:1px solid var(--md-outline-var);padding:7px 11px;text-align:left;vertical-align:top}
.ai-doc-result-view .md th:last-child,.ai-doc-result-view .md td:last-child{border-right:none}
.ai-doc-result-view .md tr:last-child td{border-bottom:none}
.ai-doc-result-view .md thead th{background:var(--md-primary-container);color:var(--md-on-primary-container);font-weight:700}
.ai-doc-result-view .md tbody tr:nth-child(even){background:var(--md-surface-container-low)}

/* 暂停按钮样式 */
.ai-doc-stop-btn{display:inline-flex;align-items:center;gap:6px;padding:0 18px;height:40px;border:none;border-radius:20px;
  background:rgba(179,38,38,.12);color:var(--err);font-size:13.5px;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;flex:none}
.ai-doc-stop-btn:hover{background:rgba(179,38,38,.2)}
.ai-doc-stop-btn svg{width:14px;height:14px;flex:none}
.ai-doc-stop-btn[hidden]{display:none}

/* ===================== 开通会员弹窗 ===================== */
.upg-features{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;margin:0 0 16px;padding:14px 14px 12px;
  background:var(--md-surface-container);border-radius:var(--md-rs-md);border:1px solid var(--md-outline-var)}
.upg-feat{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--md-on-surface)}
.upg-feat svg{width:15px;height:15px;color:var(--md-primary);flex:none}
.upg-pricing{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.upg-price{display:flex;flex-direction:column;align-items:center;gap:2px;padding:11px 4px 9px;
  background:var(--md-surface);border:1.5px solid var(--md-outline-var);border-radius:var(--md-rs-md);transition:all .15s;
  cursor:pointer;font-family:inherit;width:100%}
.upg-price:focus-visible{outline:2px solid var(--md-primary);outline-offset:2px}
.upg-price:hover{transform:translateY(-2px);border-color:var(--md-primary);box-shadow:0 2px 8px rgba(103,80,164,.15)}
.upg-price:active{transform:translateY(0)}
.upg-price:disabled{opacity:.6;cursor:wait;transform:none}
.upg-price b{font-size:12px;font-weight:600;color:var(--md-muted)}
.upg-price span{font-size:17px;font-weight:800;color:var(--md-primary);line-height:1.1}
.upg-price span small{font-size:11px;font-weight:600;color:var(--md-muted)}
.upg-price.hot{border-color:var(--md-primary);background:var(--md-primary-container);position:relative}
.upg-price.hot::before{content:'推荐';position:absolute;top:-8px;left:50%;transform:translateX(-50%);
  font-size:9.5px;font-weight:700;color:#fff;background:var(--md-primary);padding:1px 7px;border-radius:999px;white-space:nowrap}
.upg-price.hot span{color:var(--md-primary)}
.upg-qr{display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px;
  background:var(--md-surface-container);border-radius:var(--md-rs-md);border:1px solid var(--md-outline-var)}
.upg-qr img{width:170px;height:170px;object-fit:contain;border-radius:var(--md-rs-sm);background:#fff;padding:6px;cursor:zoom-in;transition:transform .15s}
.upg-qr img:hover{transform:scale(1.02)}
.upg-qr p{margin:0;font-size:12px;color:var(--md-muted);text-align:center;line-height:1.5}
.upg-qr p b{display:block;color:var(--md-on-surface);font-size:13px;margin-bottom:2px}

.ai-ctx{display:flex;align-items:center;gap:10px;padding:10px 18px;background:var(--md-surface);flex:none;border-bottom:1.5px solid var(--line);height:60px}
.ai-ctx-label{font-size:12px;color:var(--muted);font-weight:600;flex:none}
.ctx-chip{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:var(--md-rs-full);font-size:12.5px;font-weight:600;
  background:var(--md-primary-container);color:var(--md-on-primary-container);cursor:pointer;border:none;transition:all .15s;font-family:inherit;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}
.ctx-chip:hover{filter:brightness(.97)}
.ctx-chip.empty{background:var(--md-surface-container-high);color:var(--md-primary);border:1.5px dashed var(--md-outline-var);border-radius:var(--md-rs-full)}
.ctx-chip.active{background:var(--md-primary);color:#fff}
.ctx-chip svg{width:13px;height:13px;flex:none}
.ctx-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}

/* ===================== 顶栏额度次数（移动端 AI 视图） ===================== */
.ai-quota-top{display:none;font-size:11.5px;font-weight:600;color:var(--muted);background:var(--md-surface-container);padding:4px 10px;border-radius:999px;white-space:nowrap;flex:none}
.ai-quota-top.low{color:var(--err);background:rgba(179,38,38,.08)}
.ai-quota-top.vip{color:var(--md-primary);background:var(--md-primary-container)}

.ai-quota{font-size:11.5px;font-weight:600;color:var(--muted);background:var(--md-surface-container);padding:4px 10px;border-radius:999px;white-space:nowrap;flex:none;margin-left:auto}
.ai-quota.low{color:var(--err);background:rgba(179,38,38,.08)}
.ai-quota.vip{color:var(--md-primary);background:var(--md-primary-container)}
.ai-clear{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--muted-2);background:var(--md-surface);
  border:1.5px solid var(--line);padding:7px 13px;border-radius:10px;cursor:pointer;transition:all .15s;flex:none;white-space:nowrap}

.ai-clear:hover{border-color:var(--md-error);color:var(--md-error);background:var(--md-error-container)}
.ai-clear svg{width:13px;height:13px}

.ai-pick{display:inline-flex;align-items:center;gap:8px;width:100%;padding:9px 14px;border-radius:var(--md-rs-sm);
  background:var(--md-surface-container-high);border:1.5px solid var(--md-outline-var);cursor:pointer;
  font-size:13.5px;color:var(--md-primary);font-weight:600;transition:all .15s;user-select:none}
.ai-pick:hover{background:var(--md-primary-container);border-color:transparent}
.ai-pick-ic{display:grid;place-items:center;flex:none}
.ai-pick-ic svg{width:17px;height:17px}
.ai-pick-txt{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ai-msgs{flex:1;min-height:0;overflow-y:auto;padding:18px;display:flex;flex-direction:column;background:var(--md-surface-container-low)}

.ai-empty{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;text-align:center;flex:1;min-height:220px;gap:14px;padding:20px 20px 8vh;color:var(--muted)}
.ai-empty .ae-icon{width:58px;height:58px;border-radius:18px;background:var(--md-primary-container);color:var(--md-primary);display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.ai-empty .ae-icon svg{width:28px;height:28px}
.ai-empty b{font-size:15px;color:var(--ink);font-weight:700}
.ai-empty p{font-size:13px;line-height:1.7;max-width:280px;margin:0}
.ai-empty-tips{display:flex;flex-direction:column;gap:8px;width:100%;max-width:300px;margin-top:4px}
.ai-empty-tip{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;background:var(--md-surface);border:1.5px solid var(--line);font-size:13px;color:var(--ink);cursor:pointer;transition:all .15s;text-align:left}
.ai-empty-tip:hover{border-color:var(--md-primary);background:var(--md-primary-container);color:var(--md-primary)}
.ai-empty-tip svg{width:16px;height:16px;flex:none;color:var(--md-primary)}
.bubble{max-width:86%;padding:12px 15px;border-radius:14px;font-size:14px;line-height:1.7;margin-bottom:12px;
  white-space:pre-wrap;word-break:break-word;animation:fadeUp .25s ease both}
.bubble.user{align-self:flex-end;background:var(--grad-primary);color:#fff;border-bottom-right-radius:5px;box-shadow:var(--shadow-brand)}
.bubble.ai{align-self:flex-start;background:var(--md-surface);border:1.5px solid var(--line);border-bottom-left-radius:5px;box-shadow:var(--shadow-sm)}
.bubble.ai code{font-family:ui-monospace,Menlo,Consolas,monospace}
.bubble.ai .raw-text{white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:12.5px;line-height:1.6;color:var(--md-muted)}
.cursor{display:inline-block;width:7px;height:15px;background:var(--primary);border-radius:2px;vertical-align:text-bottom;
  animation:blink 1s steps(2) infinite;margin-left:2px}
.ai-bar{display:flex;flex-direction:column;gap:10px;padding:12px 18px;background:var(--md-surface);border-top:1.5px solid var(--line);margin-top:auto}
.ai-input-row{display:flex;align-items:flex-end;gap:10px}
.ai-input-wrap{flex:1;display:flex;align-items:center;gap:4px;background:var(--md-surface-container);border:1.5px solid transparent;border-radius:16px;padding:4px 6px 4px 18px;transition:border-color .18s,background-color .18s;min-width:0}
.ai-input-wrap:focus-within{border-color:var(--md-primary);background:var(--md-surface-container-high)}
.ai-input-wrap textarea{flex:1;resize:none;border:none;outline:none;background:transparent;padding:8px 0;font-size:14.5px;line-height:1.5;height:auto;min-height:44px;max-height:160px;font-family:inherit;color:var(--ink);min-width:0;overflow-y:auto;transition:height .1s ease}
.ai-input-wrap textarea::placeholder{color:var(--md-muted)}
.ai-expand{display:grid;place-items:center;width:34px;height:34px;flex:none;border:none;border-radius:50%;background:transparent;color:var(--md-muted);cursor:pointer;transition:all .15s}
.ai-expand:hover{background:var(--md-primary-container);color:var(--md-primary)}
.ai-expand svg{width:19px;height:19px}
.ai-send{display:grid;place-items:center;width:44px;height:44px;flex:none;border:none;border-radius:50%;background:var(--grad-primary);color:#fff;cursor:pointer;transition:all .15s;box-shadow:var(--shadow-brand)}
.ai-send:hover{background:var(--grad-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-brand-hover)}
.ai-send svg{width:18px;height:18px}
.ai-send:disabled{opacity:.55;cursor:wait;transform:none}

.ai-send.stop{background:var(--md-surface-container-high);color:var(--md-error);box-shadow:var(--shadow-sm);animation:aiStopPulse 1.6s ease-in-out infinite}
.ai-send.stop:hover{background:var(--md-error-container);color:var(--md-error);transform:none}
.ai-send.stop svg{width:14px;height:14px}
@keyframes aiStopPulse{0%,100%{box-shadow:var(--shadow-sm)}50%{box-shadow:0 0 0 6px rgba(var(--error-rgb),.12)}}

/* ===================== AI 选文档面板（移动端抽屉 / PC 居中 modal） =====================
 * 遮罩用 opacity 过渡（与长按菜单 .doc-sheet-scrim 一致），与 .pp-card 动画同步。
 * 原方案用 visibility 瞬时切换会导致"遮罩瞬间显示再显示弹窗"的视觉不同步。 */
.ai-pick-panel{position:fixed;inset:0;z-index:55;background:rgba(20,28,44,.42);
  display:flex;align-items:flex-start;justify-content:center;padding:24px;overflow:auto;
  opacity:0;pointer-events:none;transition:opacity .22s cubic-bezier(.2,.9,.3,1)}
.ai-pick-panel.open{opacity:1;pointer-events:auto}

.pp-card{position:relative;display:flex;flex-direction:column;width:100%;max-width:min(1000px,calc(100vw - 48px));max-height:min(780px,calc(100vh - 48px));margin:auto;overflow:hidden;background:var(--md-surface);
  border-radius:var(--md-rs-lg);box-shadow:var(--shadow-lg);padding:24px 24px 18px;
  opacity:0;transform:scale(.98);transition:opacity .22s cubic-bezier(.2,.9,.3,1),transform .22s cubic-bezier(.2,.9,.3,1)}
.ai-pick-panel.open .pp-card{opacity:1;transform:scale(1)}
#ppBody{flex:1;overflow:auto;min-height:0;padding:14px 0}
.ai-pick-panel .pp-card .doc-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
/* PC 端 AI 选文档弹窗是居中 modal，隐藏底部抽屉的拖拽把手 */
.ai-pick-panel .pp-card .ds-handle{display:none}
.ai-pick-panel .pp-card .doc-card{min-width:0}

.ai-pick-panel .pp-card .m-acts{display:flex;justify-content:space-between;align-items:center;gap:12px;position:relative;flex:none;background:var(--md-surface-container);border-radius:var(--md-rs-md);padding:10px 14px;margin:14px 0 0;box-shadow:var(--shadow-sm);flex-wrap:wrap;row-gap:8px}
.ai-pick-panel .pp-card .m-acts .m-acts-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ai-pick-panel .pp-card .m-acts .m-acts-right{display:flex;align-items:center;gap:8px;margin-left:auto}
.ai-pick-panel .pp-card .m-acts .m-acts-count{font-size:12.5px;color:var(--md-on-surface-variant);font-weight:500;padding:0 4px;min-width:62px}
.ai-pick-panel .pp-card .m-acts .m-mini{flex:none;min-width:auto;height:32px;padding:0 12px;border-radius:16px;font-size:13px;font-weight:600;cursor:pointer;border:1px solid var(--md-outline);background:transparent;color:var(--md-on-surface);transition:all .2s}
.ai-pick-panel .pp-card .m-acts .m-mini:hover{background:var(--md-surface-container-highest)}
.ai-pick-panel .pp-card .m-acts button:not(.m-mini){flex:none;min-width:96px;height:40px;border-radius:20px;font-size:14px;font-weight:600;cursor:pointer;border:none;line-height:1;transition:all .2s}

.ai-pick-panel .pp-card .pp-sticky-head{flex:none;position:static;background:var(--md-surface);padding-bottom:10px;border-bottom:1px solid var(--md-outline-var)}
.ai-pick-panel .pp-card .pp-sticky-head .m-head,
.ai-pick-panel .pp-card .pp-sticky-head .m-tabs{position:static}

.ai-expand-overlay{position:fixed;inset:0;z-index:60;background:var(--md-surface);display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(8px) scale(.99);
  transition:opacity .22s ease,transform .22s ease,visibility 0s linear .22s}
.ai-expand-overlay.open{opacity:1;visibility:visible;transform:translateY(0) scale(1);transition:opacity .22s ease,transform .22s ease,visibility 0s}
.ae-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;border-bottom:1.5px solid var(--line)}
.ae-head > span{font-size:15px;font-weight:700;color:var(--ink)}
.ae-close{display:flex;align-items:center;gap:6px;border:none;background:var(--grad-primary);color:#fff;border-radius:var(--radius-sm);
  padding:9px 16px;font-size:13.5px;font-weight:700;cursor:pointer;box-shadow:var(--shadow-brand)}
.ae-close svg{width:16px;height:16px}
.ae-input{flex:1;width:100%;border:none;outline:none;resize:none;padding:18px;font-size:16px;line-height:1.7;
  font-family:inherit;background:transparent;color:var(--ink)}

.ai-wide{display:flex;flex-direction:column;flex:1;min-height:0;padding:0;max-width:none}
.ai-split{display:flex;width:100%;min-height:0;
  
  flex-direction:row-reverse;
  border:1px solid var(--md-outline-var);border-radius:var(--md-rs-lg);overflow:hidden;background:var(--md-surface)}
.content.ai-view{padding:0;display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}
.content.ai-view > #viewBox{flex:1;min-height:0;display:flex;flex-direction:column}
.content.ai-view .ai-split{flex:1;min-height:0;border-radius:0;border:none}
.ai-doc{display:flex;flex-direction:column;width:50%;min-width:0;min-height:0;background:var(--md-surface-container-low)}
.ai-doc-head{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1.5px solid var(--line);background:var(--md-surface);height:60px}
.ai-doc-sel{display:flex;align-items:center;gap:7px;flex:1;min-width:0}
.ai-doc-sel svg{width:17px;height:17px;color:var(--md-primary);flex:none}
.ai-doc-sel select{flex:1;min-width:0;max-width:100%;border:1.5px solid var(--line);border-radius:9px;
  padding:8px 10px;font-size:13px;font-family:inherit;background:var(--md-surface);color:var(--ink);outline:none;
  white-space:nowrap;text-overflow:ellipsis;overflow:hidden}
.ai-doc-sel select:focus{border-color:var(--primary)}
.ai-doc-acts{display:flex;gap:7px;flex:none}
.ai-doc-close{display:none;width:34px;height:34px;border:none;border-radius:9px;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--muted);background:var(--md-surface-container-high);cursor:pointer;flex:none;transition:all .15s}
.ai-doc-close:hover{background:var(--md-error-container);color:var(--md-error)}
.ai-doc-btn{border:1.5px solid var(--line);background:var(--md-surface);color:var(--muted);font-size:12.5px;font-weight:600;
  padding:6px 12px;border-radius:9px;cursor:pointer;transition:all .15s;white-space:nowrap;display:inline-flex;align-items:center;gap:4px}
.ai-doc-btn:hover{border-color:var(--md-primary);color:var(--md-primary)}
.ai-doc-btn.primary{background:var(--grad-primary);color:#fff;border-color:transparent;box-shadow:var(--shadow-brand)}
.ai-doc-btn.primary:hover{background:var(--grad-primary-hover);color:#fff}
.ai-doc-editor{flex:1;width:100%;min-height:0;border:none;outline:none;resize:none;padding:16px 18px;font-size:14px;line-height:1.7;
  font-family:inherit;background:transparent;color:var(--ink);overflow:auto}
.ai-doc-foot{padding:8px 18px;border-top:1px solid var(--md-outline-var);font-size:12px;color:var(--muted-2);
  background:var(--md-surface);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.ai-ctx-list{flex:1;min-height:0;overflow:auto;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.ai-ctx-list-head{font-size:12px;font-weight:700;color:var(--md-muted);padding:0 4px 6px;border-bottom:1px solid var(--md-outline-var);margin-bottom:6px;letter-spacing:.02em}
.ai-ctx-list-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--md-outline-var);border-radius:var(--md-rs-sm);background:var(--md-surface);cursor:pointer;transition:all .15s;text-align:left;font-family:inherit;width:100%}
.ai-ctx-list-item:hover{border-color:var(--md-primary);background:var(--md-primary-container)}
.ai-ctx-list-item .cl-ic{width:28px;height:28px;border-radius:8px;background:var(--md-primary-container);color:var(--md-primary);display:grid;place-items:center;flex:none}
.ai-ctx-list-item .cl-ic svg{width:15px;height:15px}
.ai-ctx-list-item .cl-name{flex:1;min-width:0;font-size:13.5px;font-weight:600;color:var(--md-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ai-ctx-list-item .cl-arrow{color:var(--md-muted);flex:none}
.ai-ctx-list-item .cl-arrow svg{width:16px;height:16px}
.ai-ctx-list-empty{padding:24px 16px;text-align:center;color:var(--md-muted);font-size:13px}
.ai-chat{display:flex;flex-direction:column;flex:1;min-width:0;min-height:0;background:var(--md-surface);border-right:1.5px solid var(--line)}
.ai-doc-toggle{display:none}

.ai-view-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:var(--md-rs-full);
  font-size:12.5px;font-weight:600;background:var(--md-surface-container-high);color:var(--md-primary);
  border:1.5px solid var(--md-outline-var);cursor:pointer;transition:all .15s;font-family:inherit;white-space:nowrap;flex:none}
.ai-view-btn:hover{border-color:var(--md-primary);background:var(--md-primary-container)}
.ai-view-btn:disabled{opacity:.4;cursor:not-allowed}
.ai-view-btn svg{width:14px;height:14px;flex:none}
.ai-view-btn .cnt{min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:var(--md-primary);color:#fff;
  font-size:10.5px;font-weight:700;display:grid;place-items:center;flex:none}
.ai-view-btn:disabled .cnt{background:var(--md-outline)}

.m-doc-list{display:flex;flex-direction:column;gap:6px;margin-top:4px}
.m-doc-item{display:flex;align-items:center;gap:10px;width:100%;padding:12px 14px;border-radius:var(--md-rs-sm);
  background:var(--md-surface);border:1px solid var(--md-outline-var);cursor:pointer;transition:all .15s;
  font-family:inherit;font-size:13.5px;font-weight:600;color:var(--ink);text-align:left}
.m-doc-item:hover{background:var(--md-surface-container-high);border-color:var(--md-primary)}
.m-doc-item .v-ic{width:30px;height:30px;border-radius:8px;background:var(--md-primary-container);color:var(--md-primary);
  display:grid;place-items:center;flex:none}
.m-doc-item .v-ic svg{width:15px;height:15px}
.m-doc-item .v-name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m-doc-item .v-arrow{color:var(--md-muted);flex:none}
.m-doc-item .v-arrow svg{width:16px;height:16px}

.bubble.ai .md p{margin:0 0 9px;word-wrap:break-word;overflow-wrap:break-word}
.bubble.ai .md p:last-child{margin-bottom:0}
.bubble.ai .md h1,.bubble.ai .md h2,.bubble.ai .md h3{margin:14px 0 7px;line-height:1.35;font-weight:700;color:var(--ink)}
.bubble.ai .md h1{font-size:18px;padding-bottom:.35em;border-bottom:2px solid var(--md-outline-var);position:relative}
.bubble.ai .md h1::after{content:'';position:absolute;left:0;bottom:-2px;width:54px;height:2px;background:var(--grad-primary);border-radius:999px}
.bubble.ai .md h2{font-size:16px;padding-left:.8em;border-left:3px solid var(--md-primary);border-radius:3px;transition:all .2s}
.bubble.ai .md h2:hover{padding-left:1em;border-left-color:var(--brand-cyan)}
.bubble.ai .md h3{font-size:14.5px;transition:all .2s}
.bubble.ai .md h3::before{content:'';display:inline-block;width:7px;height:7px;margin-right:.5em;vertical-align:middle;background:var(--md-primary);border-radius:50%;opacity:.55;transition:all .2s}
.bubble.ai .md h3:hover::before{opacity:1;transform:scale(1.3)}
.bubble.ai .md ul,.bubble.ai .md ol{margin:7px 0 11px;padding-left:1.6rem}
.bubble.ai .md li{margin:.32rem 0}
.bubble.ai .md li::marker{color:var(--md-primary)}
.bubble.ai .md a{color:var(--md-primary);text-decoration:none;border-bottom:1.5px solid rgba(var(--brand-rgb),.3);transition:all .2s}
.bubble.ai .md a:hover{background:var(--md-primary-container);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.bubble.ai .md blockquote{margin:10px 0;padding:.6rem 1rem;border-left:3px solid var(--md-primary);border-radius:0 var(--md-rs-md) var(--md-rs-md) 0;background:var(--md-primary-container);color:var(--md-on-primary-container);font-size:.95em}
.bubble.ai .md blockquote p{margin:.4em 0;opacity:1}
.bubble.ai .md :not(pre)>code{background:var(--md-primary-container);color:var(--md-on-primary-container);padding:1.5px 6px;border-radius:5px;font-size:12.5px;font-family:ui-monospace,Menlo,Consolas,monospace}
.bubble.ai .md hr{border:none;height:1.5px;background:linear-gradient(90deg,transparent,var(--md-outline-var) 20%,var(--md-outline-var) 80%,transparent);margin:13px 0;border-radius:999px}

.bubble.ai .md .md-table-wrap{margin:11px 0;overflow-x:auto;border-radius:var(--md-rs-md);border:1px solid var(--md-outline-var);box-shadow:var(--shadow-sm)}
.bubble.ai .md table{border-collapse:separate;border-spacing:0;font-size:12.5px;width:100%;min-width:280px;overflow:hidden;border-radius:var(--md-rs-md)}
.bubble.ai .md th,.bubble.ai .md td{border-bottom:1px solid var(--md-outline-var);border-right:1px solid var(--md-outline-var);padding:7px 11px;text-align:left;vertical-align:top;transition:background-color .2s}
.bubble.ai .md th:last-child,.bubble.ai .md td:last-child{border-right:none}
.bubble.ai .md tr:last-child td{border-bottom:none}
.bubble.ai .md thead th{background:var(--md-primary-container);color:var(--md-on-primary-container);font-weight:700;white-space:nowrap;border-bottom:2px solid var(--md-primary-container)}
.bubble.ai .md tbody tr:nth-child(even){background:var(--md-surface-container-low)}
.bubble.ai .md tbody tr:hover td{background:var(--md-primary-container)}

.codeblk{position:relative;margin:10px 0;border-radius:var(--md-rs-md);overflow:hidden;border:1.5px solid var(--md-outline-var);background:var(--md-surface-container-low)}
.codeblk .cb-top{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;background:var(--md-surface-container);border-bottom:1.5px solid var(--md-outline-var)}
.codeblk .cb-lang{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.4px;text-transform:uppercase;font-family:ui-monospace,Menlo,Consolas,monospace}
.codeblk .cb-acts{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.codeblk .cb-copy,.codeblk .cb-write{display:flex;align-items:center;gap:4px;background:var(--md-surface);border:1.5px solid var(--md-outline-var);
  color:var(--md-primary);font-size:11px;font-weight:600;padding:5px 9px;border-radius:var(--md-rs-sm);cursor:pointer;transition:all .14s}
.codeblk .cb-copy:hover,.codeblk .cb-write:hover{background:var(--md-primary-container);border-color:var(--md-primary)}
.codeblk .cb-copy svg,.codeblk .cb-write svg{width:12px;height:12px}
.codeblk pre{margin:0;background:var(--md-surface-container-low);color:var(--ink);padding:12px 14px;overflow:auto;
  font-size:12.5px;line-height:1.6;font-family:ui-monospace,Menlo,Consolas,monospace}

.bubble-wrap{display:flex;flex-direction:column;max-width:86%;align-self:flex-start;margin-bottom:12px}
.bubble-wrap.user-msg{align-self:flex-end;align-items:flex-end}
.bubble-wrap .bubble{max-width:100%;margin-bottom:0}
.msg-acts{display:flex;gap:7px;margin-top:6px;padding-left:4px;opacity:0;transition:opacity .16s}
.bubble-wrap:hover .msg-acts{opacity:1}
.msg-acts button{display:flex;align-items:center;gap:4px;background:var(--md-surface);border:1.5px solid var(--line);
  color:var(--muted-2);font-size:11.5px;padding:4px 10px;border-radius:8px;cursor:pointer;transition:all .14s}
.msg-acts button:hover{border-color:var(--primary);color:var(--primary);background:var(--md-secondary-container)}
.msg-acts button svg{width:12px;height:12px}

.sel-float{position:absolute;z-index:60;display:inline-flex;align-items:center;gap:5px;
  background:var(--primary);color:#fff;border:none;border-radius:8px;
  padding:6px 12px;font-size:12.5px;font-weight:600;cursor:pointer;
  box-shadow:var(--shadow-brand);opacity:0;transform:translateY(4px);
  animation:selFloatIn .12s ease forwards;font-family:inherit}
.sel-float:hover{filter:brightness(1.08)}
.sel-float svg{width:13px;height:13px}
@keyframes selFloatIn{to{opacity:1;transform:translateY(0)}}