*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#f5f6f8;--card:#fff;--line:#e7eaef;--line-2:#eff1f4;
  --txt:#14171f;--txt-2:#5b6472;--mut:#6b7280;--dim:#9ca3af;--faint:#b4b2a9;
  --accent:#2f6bff;--accent-soft:#eaf0ff;--accent-ink:#1f4fd0;
  --warn:#ba7517;--warn-soft:#faeeda;--ok:#1d9e75;--danger:#e24b4a;
  --r-sm:7px;--r-md:10px;--r-lg:14px;
}
html,body{height:100%;width:100%;max-width:100%;overflow-x:hidden}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overscroll-behavior:none;
  -webkit-text-size-adjust:100%;text-size-adjust:100%;
}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;padding:0}
input,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
[hidden]{display:none!important}
.svg{display:block;flex:0 0 auto}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{width:100%;max-width:330px;background:var(--card);border:.5px solid var(--line);border-radius:18px;padding:26px 22px}
.login-logo{width:44px;height:44px;border-radius:13px;background:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.login-card h1{font-size:18px;font-weight:500;margin:0 0 4px}
.login-card p{font-size:12px;color:var(--mut);margin:0 0 18px}
.field{width:100%;height:42px;border:.5px solid var(--line);border-radius:var(--r-md);padding:0 12px;background:#fbfcfd;outline:none;font-size:14px}
.field:focus{border-color:var(--accent);background:#fff}
.btn{height:40px;border-radius:var(--r-md);border:.5px solid var(--line);display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 14px;font-size:13px;font-weight:500;background:#fff;transition:background .15s}
.btn:hover{background:#f7f8fa}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:#2a60e6}
.btn-block{width:100%;margin-top:12px}
.btn-sm{height:30px;font-size:12px;padding:0 10px;border-radius:var(--r-sm)}
.btn-danger{color:var(--danger);border-color:#f3d6d6}
.login-err{font-size:12px;color:var(--danger);margin-top:10px;min-height:16px}

/* ---------- 主框架 ---------- */
.app{display:grid;grid-template-columns:208px minmax(0,1fr) 340px;height:100%}
.app.no-detail{grid-template-columns:208px minmax(0,1fr)}

/* 侧栏 */
.sidebar{background:#fafbfc;border-right:.5px solid var(--line);display:flex;flex-direction:column;padding:14px 10px;min-height:0}
.brand{display:flex;align-items:center;gap:8px;padding:0 6px 14px}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center}
.brand-name{font-size:13px;font-weight:500;line-height:1.2}
.brand-sub{font-size:11px;color:var(--faint);line-height:1.3}
.nav-item{display:flex;align-items:center;gap:8px;height:32px;padding:0 9px;border-radius:var(--r-sm);font-size:13px;color:var(--txt-2);width:100%;text-align:left}
.nav-item:hover{background:#f1f3f7}
.nav-item.on{background:var(--accent-soft);color:var(--accent);font-weight:500}
.nav-item .n{margin-left:auto;font-size:11px;color:var(--faint)}
.nav-item.on .n{color:#7c9be0}
.side-sep{height:.5px;background:var(--line);margin:12px 4px}
.side-label{font-size:11px;color:var(--dim);padding:0 9px 6px}
.date-list{overflow:auto;min-height:0;flex:1}
.date-item{display:flex;align-items:center;gap:8px;height:30px;padding:0 9px;border-radius:var(--r-sm);font-size:12px;color:var(--txt-2);width:100%;text-align:left}
.date-item:hover{background:#f1f3f7}
.date-item.on{background:#eef2fc;color:var(--accent-ink)}
.date-item .d{width:5px;height:5px;border-radius:50%;background:#d3d1c7;flex:0 0 auto}
.date-item.on .d{background:var(--accent)}
.date-item .n{margin-left:auto;font-size:11px;color:var(--faint)}
.side-foot{padding:10px 6px 0;border-top:.5px solid var(--line)}
.storage-row{display:flex;justify-content:space-between;font-size:11px;color:var(--dim);margin-bottom:5px}
.storage-bar{height:3px;background:#edf0f5;border-radius:2px;overflow:hidden}
.storage-bar i{display:block;height:3px;background:var(--accent);border-radius:2px}
.side-actions{display:flex;gap:6px;margin-top:10px}
.side-actions .btn{flex:1;height:30px;font-size:12px;padding:0}

/* 主区 */
.main{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}
.topbar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:rgba(245,246,248,.92);backdrop-filter:blur(8px);position:sticky;top:0;z-index:5;border-bottom:.5px solid transparent}
.topbar.scrolled{border-bottom-color:var(--line)}
.top-title{font-size:16px;font-weight:500;letter-spacing:-.2px}
.top-meta{font-size:12px;color:var(--dim)}
.spacer{flex:1}
.search{display:flex;align-items:center;gap:6px;height:32px;padding:0 10px;border:.5px solid var(--line);border-radius:var(--r-sm);background:#fff;width:150px;color:var(--dim)}
.search input{border:none;outline:none;background:none;width:100%;font-size:12px}
.pills{display:flex;gap:6px;padding:0 16px 10px;overflow:auto;-webkit-overflow-scrolling:touch}
.pill{font-size:12px;padding:5px 12px;border-radius:20px;border:.5px solid var(--line);background:#fff;color:var(--txt-2);white-space:nowrap}
.pill.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:500}
.list-wrap{flex:1;overflow:auto;padding:0 16px 90px;min-height:0}
.group-head{display:flex;align-items:center;justify-content:space-between;padding:12px 2px 8px;font-size:12px;color:var(--mut)}
.group-head b{font-weight:500;color:var(--txt-2)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));grid-auto-flow:row dense;gap:10px}
.card{background:var(--card);border:.5px solid var(--line);border-radius:var(--r-md);overflow:hidden;position:relative;transition:border-color .15s,transform .12s}
.card:hover{border-color:#d6dbe4}
.card:active{transform:scale(.995)}
.card-file{height:0;padding-bottom:72%;background:#eef1f6;cursor:pointer}
.card-file img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .25s}
.card-file img.ready{opacity:1}
.ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.ph.image{background:#e6f1fb;color:#378add}
.ph.video{background:#eef1f6;color:#5b6472}
.ph.audio{background:#e1f5ee;color:#1d9e75}
.ph.file{background:#f1f3f7;color:#888780}
.badge{position:absolute;left:6px;bottom:6px;font-size:11px;padding:1px 6px;border-radius:5px;background:rgba(255,255,255,.9);color:#4b5563;max-width:calc(100% - 12px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;z-index:2}
.badge.dur{left:auto;right:6px;background:rgba(20,23,31,.72);color:#fff}
.play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:1}
.play i{width:34px;height:34px;border-radius:50%;background:rgba(20,23,31,.55);display:flex;align-items:center;justify-content:center}
.card-text{padding:11px 12px;cursor:pointer;border-left:2.5px solid var(--accent);display:flex;flex-direction:column;min-height:112px;grid-column:span 2}
.ct-head{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--accent);font-weight:500;margin-bottom:5px}
.ct-time{margin-left:auto;color:var(--faint);font-weight:400}
.ct-title{font-size:13px;font-weight:500;line-height:1.5;margin-bottom:3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ct-ex{font-size:11.5px;color:var(--mut);line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ct-foot{margin-top:auto;padding-top:8px;display:flex;gap:12px;font-size:11px;color:var(--dim)}
.ct-foot .act{color:var(--accent)}
.ct-foot .del{color:#b0a9a0}
.ct-foot .del:hover{color:var(--danger)}
.ct-foot .n{margin-left:auto}
.empty{text-align:center;padding:70px 20px;color:var(--dim);font-size:12.5px;line-height:2}
.empty svg{margin:0 auto 10px;opacity:.5}

/* 上传条 */
.transfer{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom));width:min(680px,calc(100% - 24px));background:#fff;border:.5px solid var(--line);border-radius:12px;box-shadow:0 6px 24px rgba(20,23,31,.09);z-index:60;overflow:hidden}
.transfer-head{display:flex;align-items:center;gap:8px;padding:9px 12px;font-size:12px;border-bottom:.5px solid var(--line-2)}
.transfer-head .grow{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.transfer-body{max-height:190px;overflow:auto}
.tr-item{display:flex;gap:9px;padding:9px 12px;align-items:center;border-bottom:.5px solid var(--line-2)}
.tr-item:last-child{border-bottom:none}
.tr-ico{width:32px;height:32px;border-radius:7px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;background:#f1f3f7;color:#5b6472}
.tr-main{flex:1;min-width:0}
.tr-name{font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tr-sub{font-size:11px;color:var(--dim);margin-top:1px}
.tr-bar{height:3px;background:#edf0f5;border-radius:2px;margin-top:6px;overflow:hidden}
.tr-bar i{display:block;height:3px;background:var(--accent);border-radius:2px;transition:width .3s}
.tr-item.pause .tr-bar i{background:#ef9f27}
.tr-item.done .tr-bar i{background:var(--ok)}
.tr-item.err .tr-bar i{background:var(--danger)}

/* 详情面板 */
.detail{border-left:.5px solid var(--line);background:#fff;display:flex;flex-direction:column;min-height:0}
.detail-head{display:flex;align-items:center;gap:8px;padding:14px 14px 10px;font-size:11px;color:var(--dim)}
.detail-body{flex:1;overflow:auto;padding:0 16px 16px;min-height:0}
.detail-title{font-size:15px;font-weight:500;line-height:1.5;margin-bottom:8px}
.rich{font-size:13.5px;line-height:1.9;color:#1f2430;overflow-wrap:anywhere;word-break:break-word}
.rich p{margin:0 0 .7em}
.rich div{margin:0}
.rich ul,.rich ol{margin:.4em 0 .8em;padding-left:1.4em}
.rich li{margin:.15em 0}
.rich h1,.rich h2,.rich h3,.rich h4{font-size:1.05em;font-weight:500;margin:.9em 0 .4em}
.rich blockquote{margin:.6em 0;padding:.2em 0 .2em .9em;border-left:3px solid #dfe4ee;color:var(--txt-2)}
.rich hr{border:none;border-top:.5px solid var(--line);margin:1em 0}
.rich code{background:#f3f5f8;padding:1px 5px;border-radius:4px;font-size:.92em}
.rich a{word-break:break-all}
.detail-foot{display:flex;gap:8px;padding:10px 14px calc(12px + env(safe-area-inset-bottom));border-top:.5px solid var(--line-2)}
.detail-foot .btn{flex:1;height:34px;font-size:12.5px}
.meta-row{display:flex;gap:10px;font-size:11px;color:var(--faint);margin-bottom:12px;flex-wrap:wrap}
.file-actions{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.file-actions .btn{height:32px;font-size:12px}

/* 遮罩 / 查看器 */
.overlay{position:fixed;inset:0;background:#080a0d;z-index:80;display:flex;flex-direction:column;color:#fff}
.viewer-top{display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;font-size:12px}
.viewer-top .grow{flex:1;min-width:0}
.viewer-name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.viewer-sub{font-size:11px;color:rgba(255,255,255,.5);margin-top:2px}
.viewer-stage{flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:0;padding:0 8px}
.viewer-stage img,.viewer-stage video{max-width:100%;max-height:100%;object-fit:contain}
.viewer-foot{display:flex;justify-content:space-around;padding:12px 14px calc(16px + env(safe-area-inset-bottom))}
.viewer-count{font-size:11px;color:rgba(255,255,255,.6);padding:0 4px;flex:0 0 auto}
.viewer-tip{text-align:center;font-size:11px;color:rgba(255,255,255,.42);padding:0 14px 8px;line-height:1.5}
.viewer-tip span{display:none}
@media(min-width:1024px){.viewer-tip .tip-desk{display:inline}}
@media(max-width:1023px){.viewer-tip .tip-mob{display:inline}}
.vnav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;background:rgba(20,23,31,.45);display:flex;align-items:center;justify-content:center;z-index:2;transition:background .15s,opacity .15s;backdrop-filter:blur(2px)}
.vnav:hover{background:rgba(20,23,31,.7)}
.vnav[disabled]{opacity:0;pointer-events:none}
.vnav-prev{left:10px}
.vnav-next{right:10px}
.vbtn{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:11px;color:rgba(255,255,255,.72);min-width:64px}
.vbtn:active{opacity:.6}

/* 编辑器抽屉 */
.sheet{position:fixed;left:0;right:0;top:var(--vv-top,0px);height:var(--vv-h,100%);z-index:90;display:flex;align-items:flex-end;justify-content:center;background:rgba(15,18,24,.4)}
.sheet-panel{width:min(720px,100%);max-width:100%;max-height:92vh;background:#fff;border-radius:16px 16px 0 0;display:flex;flex-direction:column;overflow:hidden}
@media(min-width:900px){.sheet{align-items:center}.sheet-panel{border-radius:16px;max-height:86vh}}
.sheet-head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:.5px solid var(--line-2)}
.sheet-title{font-size:14px;font-weight:500;white-space:nowrap}
.sheet-body{flex:1;overflow:auto;padding:12px 16px 14px;min-height:260px}
@media(min-width:900px){.sheet-body{min-height:340px}}
.toolbar{display:flex;gap:2px;padding:6px 10px calc(6px + env(safe-area-inset-bottom));border-top:.5px solid var(--line-2);overflow:auto}
body.modal .transfer{display:none!important}
.tbtn{width:32px;height:30px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:var(--txt-2);font-size:13px;flex:0 0 auto}
.tbtn:hover{background:#f1f3f7}
.tbtn:active,.tbtn.on{background:#e7ecf7;color:var(--accent)}
.title-row{display:flex;align-items:center;gap:8px;padding-bottom:9px;border-bottom:.5px solid var(--line-2);margin-bottom:11px}
.title-input{flex:1;min-width:0;height:30px;border:none;outline:none;background:none;font-size:15px;font-weight:500;letter-spacing:-.1px;padding:0}
.title-input::placeholder{color:var(--faint);font-weight:400;font-size:13px;letter-spacing:0}
.cnt{font-size:11px;color:var(--faint);flex:0 0 auto;font-variant-numeric:tabular-nums;letter-spacing:-.2px}
.cnt.warn{color:var(--danger)}
.body-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 16px 0;font-size:11px;color:var(--faint);flex:0 0 auto}
.bf-hint{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.editor{min-height:200px;outline:none;font-size:14px;line-height:1.85;color:#1f2430;overflow-wrap:anywhere;word-break:break-word}
.editor:empty:before{content:attr(data-ph);color:var(--faint)}
.editor img{max-width:100%}
.sheet-foot{display:flex;gap:8px;padding:10px 16px calc(12px + env(safe-area-inset-bottom));border-top:.5px solid var(--line-2)}
.sheet-foot .btn{height:38px}
.sheet-foot .grow{flex:1}
.hint{font-size:11px;color:var(--dim);padding:0 16px 8px}

/* 多选条（作为 .main 的 flex 子元素，不用 fixed，避免 iOS Safari 底部工具栏遮挡） */
.selbar{display:flex;align-items:center;gap:8px;padding:9px 14px calc(9px + env(safe-area-inset-bottom));background:#fff;border-top:.5px solid var(--line);flex:0 0 auto;box-shadow:0 -3px 14px rgba(20,23,31,.05)}
.selbar-n{font-size:12.5px;color:var(--txt-2);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}
.selbar .btn{height:32px;font-size:12.5px;padding:0 12px;flex:0 0 auto}
.sel-close{width:26px;height:26px;border-radius:50%;background:#f1f3f7;color:var(--txt-2);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.sel-close:active{background:#e6e9ef}

/* 文件卡片右上角的勾选圈：一直可见，点圈即选中，不用先进入多选模式 */
.selcheck{position:absolute;right:0;top:0;width:44px;height:44px;padding:7px;display:flex;align-items:flex-start;justify-content:flex-end;z-index:4;background:none;border:none}
.sc-dot{width:21px;height:21px;border-radius:50%;background:rgba(255,255,255,.94);border:.5px solid rgba(20,23,31,.16);box-shadow:0 1px 4px rgba(20,23,31,.18);display:flex;align-items:center;justify-content:center;color:transparent;transition:background .15s,border-color .15s,transform .12s}
.sc-dot svg{width:12px;height:12px;stroke-width:3.2}
.selcheck:active .sc-dot{transform:scale(.9)}
.card.sel-on{border-color:var(--accent);box-shadow:0 0 0 2px rgba(47,107,255,.32)}
.card.sel-on .sc-dot{background:var(--accent);border-color:var(--accent);color:#fff}

/* 本机直连提示 */
.direct-hint{padding:0 4px 10px;font-size:11px;line-height:1.5;color:var(--dim)}
.direct-hint a{display:inline-block;font-weight:500;text-decoration:none}
.direct-hint span{display:block;color:var(--faint);margin-top:1px}

.toast{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(20,23,31,.9);color:#fff;font-size:13px;padding:10px 18px;border-radius:10px;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s}
.toast.show{opacity:1}

@media(max-width:1023px){
  .app,.app.no-detail{grid-template-columns:1fr;height:100%}
  /* 关掉的侧栏 / 详情用 display:none，而不是 translateX(100%) 停在屏幕外：
     iOS Safari 会把停在右侧的 fixed 元素算进横向滚动范围，页面就比浏览器宽了 */
  .sidebar{position:fixed;left:0;top:0;bottom:0;width:240px;max-width:82vw;z-index:70;display:none}
  .sidebar.open{display:flex;animation:slideInLeft .22s ease;box-shadow:0 8px 40px rgba(20,23,31,.18)}
  .detail{position:fixed;inset:0;z-index:75;border-left:none;display:none}
  .detail.open{display:flex;animation:slideInRight .22s ease}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .list-wrap{padding:0 18px 28px}
  .topbar{padding:10px 18px;gap:6px}
  .topbar .spacer{display:none}
  .pills{padding:0 18px 10px}
  .search{width:auto;flex:1 1 auto;min-width:0;max-width:118px}
  .search input{min-width:0}
  #btnNewText{width:32px;padding:0;justify-content:center}
  #btnNewText .btn-label{display:none}
  .group-head{padding:14px 2px 10px}
  .detail-head{padding:14px 20px 10px}
  .detail-body{padding:0 20px 20px}
  .detail-foot{padding:10px 20px calc(12px + env(safe-area-inset-bottom))}
  .sheet-head{padding:12px 20px}
  .sheet-body{padding:14px 20px}
  .hint{padding:0 20px 8px}
  .card-text{min-height:104px}
  .transfer{width:calc(100% - 24px)}
  .viewer-stage{padding:0 6px}
}
@media(max-width:380px){.grid{gap:7px}}
@keyframes slideInLeft{from{transform:translateX(-100%)}to{transform:none}}
@keyframes slideInRight{from{transform:translateX(100%)}to{transform:none}}
/* 小屏（iPhone SE 375 及更窄）：再收一点，保证一屏装得下、不出现横向滚动 */
@media(max-width:400px){
  .topbar{padding:10px 16px;gap:5px}
  .pills{padding:0 16px 9px}
  .list-wrap{padding:0 16px 26px}
  .search{max-width:104px}
  .top-title{font-size:15px}
  .group-head{padding:13px 2px 9px}
  .selbar{padding:8px 12px calc(8px + env(safe-area-inset-bottom));gap:6px}
  .selbar .btn{padding:0 10px;font-size:12px}
  .title-input{font-size:14px}
  .sheet-body{padding:12px 14px 14px}
  .sheet-head{padding:11px 14px;gap:7px}
  .hint{padding:0 14px 8px}
  .detail-head{padding:13px 16px 10px}
  .detail-body{padding:0 16px 16px}
  .detail-foot{padding:10px 16px calc(12px + env(safe-area-inset-bottom));gap:6px}
  .detail-foot .btn{font-size:12px}
}
.mob-only{display:none}
@media(max-width:1023px){.mob-only{display:flex}}
.btn[disabled]{opacity:.45;cursor:not-allowed}