*,*:before,*:after{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:#f4f6fb;color:#1f2733;font-size:14px;-webkit-font-smoothing:antialiased}
button{font-family:inherit}

/* 顶栏 */
.hd{height:52px;display:flex;align-items:center;justify-content:space-between;
  padding:0 14px;background:#fff;border-bottom:1px solid #e8ecf5;position:sticky;top:0;z-index:20}
.hd-l{display:flex;align-items:center;gap:8px;min-width:0}
.logo{font-size:18px}
.hd-l b{font-size:15px;letter-spacing:.2px}
.hd-l .sub{font-size:12px;color:#98a2b3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hd-r{display:flex;gap:8px;flex:0 0 auto}
.btn{border:1px solid #dde4f0;background:#fff;color:#2b3441;border-radius:9px;padding:7px 12px;
  font-size:13px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;white-space:nowrap}
.btn:hover{border-color:#b9c6e6;background:#f8faff}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.primary{background:#4f63d8;border-color:#4f63d8;color:#fff;font-weight:600}
.btn.primary:hover{background:#4457c9}
.btn.ghost{color:#8b94a3}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 三栏 */
.wrap{display:grid;grid-template-columns:344px minmax(0,1fr) 240px;gap:12px;padding:12px;
  height:calc(100% - 52px);position:relative}
.side,.edit,.chat,.mine{background:#fff;border:1px solid #e8ecf5;border-radius:14px;
  display:flex;flex-direction:column;overflow:hidden;min-height:0}
.mine{display:none}
.wrap[data-pane="Mine"] .mine{display:flex}
@media (min-width:901px){
  .wrap[data-pane="Mine"]{grid-template-columns:344px minmax(0,1fr) 240px}
  .wrap[data-pane="Mine"] .mine{display:flex;position:absolute;inset:0;z-index:15;
    box-shadow:0 18px 50px rgba(15,23,42,.16);border-radius:14px}
}

/* 文件栏 */
.side-hd{display:flex;justify-content:space-between;align-items:center;padding:11px 12px;
  border-bottom:1px solid #eef1f7;font-size:13px;color:#4b5666}
.side-hd i{font-style:normal;color:#98a2b3}
.side-hd .size{font-size:11px;color:#98a2b3}
.drop{margin:10px;padding:14px 10px;border:1.5px dashed #ccd6ea;border-radius:12px;
  text-align:center;color:#7a8698;font-size:12px;background:#fafcff;transition:.15s}
.drop.on{border-color:#4f63d8;background:#f2f5ff;color:#4f63d8}
.drop-ic{font-size:18px;line-height:1;margin-bottom:4px;color:#9fb0e8}
.drop-sub{color:#a9b3c2;font-size:11px;margin-top:2px}
.drop-btns{display:flex;gap:6px;justify-content:center;margin-top:9px}
.mini{border:1px solid #dde4f0;background:#fff;border-radius:8px;padding:5px 9px;font-size:12px;
  color:#4b5666;cursor:pointer}
.mini:hover{border-color:#b9c6e6;color:#4f63d8}
.files{list-style:none;margin:0;padding:0 6px 10px;overflow:auto;flex:1;min-height:0}
.files li{display:flex;align-items:center;gap:6px;padding:7px 8px;border-radius:8px;cursor:pointer;
  font-size:12.5px;color:#3d4757;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.files li:hover{background:#f4f7fd}
.files li.on{background:#eef2ff;color:#3f52c4;font-weight:600}
.files li .fi{opacity:.7;font-size:11px}
.files li .p{overflow:hidden;text-overflow:ellipsis;flex:1 1 auto}
.files li .del{opacity:0;border:0;background:transparent;color:#c25a5a;cursor:pointer;font-size:13px}
.files li:hover .del{opacity:1}
.empty{padding:18px 12px;color:#a9b3c2;font-size:12px;text-align:center}

/* 编辑器 */
.ed-bar{display:flex;align-items:center;gap:8px;padding:9px 12px;border-bottom:1px solid #eef1f7;
  font-size:12.5px;color:#4b5666;flex:0 0 auto}
.ed-name{font-weight:600;color:#26313f;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:46%}
.dot{color:#e0a03a}
.ed-meta{color:#a9b3c2;font-size:11.5px}
.ed-bar .sp{flex:1}
.ed-body{display:flex;flex:1;min-height:0;background:#1e2430;position:relative}
.gutter{margin:0;padding:12px 8px 12px 12px;text-align:right;color:#5d6a80;font:12.5px/1.65
  ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;user-select:none;overflow:hidden;background:#1a202b;
  min-width:44px;border-right:1px solid #232a37}
#editor{flex:1;border:0;outline:none;resize:none;background:#1e2430;color:#d7e0ea;padding:12px;
  font:12.5px/1.65 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;tab-size:2;white-space:pre;overflow:auto}
#editor::placeholder{color:#5d6a80}

/* 对话 */
.chat-hd{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid #eef1f7;flex:0 0 auto}
.chat-hd .ava{width:28px;height:28px;border-radius:9px;background:#4f63d8;color:#fff;font-size:11px;
  font-weight:700;display:flex;align-items:center;justify-content:center}
.chat-hd b{font-size:13px;display:block}
.chat-hd i{font-style:normal;font-size:11px;color:#98a2b3}
.chat-hd .mode{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:12px;color:#5b6678}
.chat-body{flex:1;overflow:auto;padding:12px;background:#f7f9fc;display:flex;flex-direction:column;gap:9px}
.msg{max-width:88%;padding:9px 11px;border-radius:12px;font-size:13px;line-height:1.6;white-space:pre-wrap;
  word-break:break-word}
.msg.pet{background:#fff;border:1px solid #e9eef7;align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:#4f63d8;color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.typing{color:#98a2b3;animation:pulse 1.1s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}
.msg .acts{display:flex;gap:6px;margin-top:8px}
.msg .acts button{border:1px solid #cfd8ee;background:#fff;border-radius:8px;padding:5px 9px;
  font-size:12px;cursor:pointer;color:#3f52c4}
.msg .acts button:hover{background:#eef2ff}
.chat-ft{display:flex;gap:8px;padding:9px;border-top:1px solid #eef1f7;flex:0 0 auto;align-items:flex-end}
.chat-ft textarea{flex:1;border:1px solid #e3e9f3;border-radius:10px;padding:9px 11px;font-size:13px;
  resize:none;outline:none;max-height:120px;line-height:1.5;font-family:inherit;background:#fbfcfe}
.chat-ft textarea:focus{border-color:#9fb0e8;background:#fff}

/* toast */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);
  background:rgba(30,36,48,.94);color:#fff;font-size:13px;padding:9px 16px;border-radius:10px;
  opacity:0;pointer-events:none;transition:.24s;z-index:99;max-width:86vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* 移动端 */
.tabs{display:none}
@media (max-width:900px){
  .hd-l .sub{display:none}
  .hd{height:48px;padding:0 10px}
  .wrap{display:block;padding:8px;height:calc(100% - 48px - 52px)}
  .side,.edit,.chat{display:none;height:100%}
  .wrap[data-pane="Files"] .side{display:flex}
  .wrap[data-pane="Edit"] .edit{display:flex}
  .wrap[data-pane="Chat"] .chat{display:flex}
  .tabs{display:flex;position:fixed;left:0;right:0;bottom:0;height:52px;background:#fff;
    border-top:1px solid #e8ecf5;z-index:30;padding-bottom:env(safe-area-inset-bottom)}
  .tabs button{flex:1;border:0;background:transparent;font-size:13px;color:#7a8698;cursor:pointer}
  .tabs button.on{color:#4f63d8;font-weight:700}
  .hd-r .btn{padding:6px 9px;font-size:12px}
}


/* ---------- 登录 / 我的 ---------- */
.hide-sm{display:inline-flex}
.userbtn{padding:6px 10px}
.userbtn img{width:22px;height:22px;border-radius:50%;display:block}
.mine{padding:16px;overflow:auto}
.mine-card{max-width:520px;margin:0 auto;width:100%}
.mine-empty{text-align:center;padding:40px 16px;color:#7a8698}
.mi-ic{font-size:40px;line-height:1;margin-bottom:10px;opacity:.6}
.mine-empty p{margin:6px 0 14px;font-size:14px}
.mi-tip{margin-top:12px;font-size:12px;color:#a9b3c2}
.mi-top{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid #eef1f7;
  border-radius:14px;background:#f9fbff}
.mi-top img{width:56px;height:56px;border-radius:50%;background:#e8edf7;object-fit:cover}
.mi-top b{display:block;font-size:16px;color:#26313f}
.mi-top span{font-size:12px;color:#98a2b3}
.mi-list{list-style:none;margin:14px 0;padding:0;border:1px solid #eef1f7;border-radius:14px;overflow:hidden}
.mi-list li{display:flex;justify-content:space-between;gap:10px;padding:12px 14px;font-size:13px;
  border-bottom:1px solid #f2f5fa;color:#4b5666}
.mi-list li:last-child{border-bottom:0}
.mi-list i{font-style:normal;color:#26313f;font-weight:600;word-break:break-all;text-align:right}
.mi-btns{display:flex;gap:8px;flex-wrap:wrap}

/* 弹窗 */
.mask{position:fixed;inset:0;background:rgba(17,22,32,.5);display:none;align-items:center;
  justify-content:center;z-index:80;padding:16px}
.mask.on{display:flex}
.sheet{background:#fff;border-radius:16px;width:100%;max-width:380px;overflow:hidden;
  box-shadow:0 24px 60px rgba(10,15,25,.3)}
.sheet-hd{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;
  border-bottom:1px solid #eef1f7}
.sheet-hd b{font-size:15px}
.sheet-hd .x{border:0;background:transparent;font-size:22px;line-height:1;color:#9aa4b2;cursor:pointer}
.sheet-bd{padding:16px}
.lg-tip{font-size:12.5px;color:#7a8698;margin-bottom:12px}
.providers{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.providers button{border:1px solid #dde4f0;background:#fff;border-radius:11px;padding:11px;font-size:13.5px;
  color:#2b3441;cursor:pointer;font-weight:600}
.providers button:hover{border-color:#9fb0e8;color:#3f52c4;background:#f7f9ff}
.providers button:disabled{opacity:.5;cursor:wait}
.lg-state{margin-top:12px;font-size:12.5px;color:#c25a5a;min-height:16px}

@media (max-width:900px){
  .wrap[data-pane="Mine"] .mine{display:flex}
  .mine{display:none;height:100%}
  .hide-sm{display:none}
}


/* 登录：官方图标按钮 + 邮箱 */
.providers{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.prov{display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid #dde4f0;
  background:#fff;border-radius:11px;padding:11px 8px;font-size:13.5px;font-weight:600;
  color:#2b3441;cursor:pointer;transition:.15s}
.prov svg{width:19px;height:19px;flex:0 0 auto}
.prov.qq{color:#12b7f5;border-color:#bfe8fb;background:#f5fcff}
.prov.qq:hover{background:#eaf8ff;border-color:#7fd4f5}
.prov.wx{color:#07c160;border-color:#c3f0d8;background:#f5fffa}
.prov.wx:hover{background:#eafaf1;border-color:#79dfa9}
.prov:disabled{opacity:.5;cursor:wait}
.lg-or{display:flex;align-items:center;gap:10px;margin:16px 0 12px;color:#a9b3c2;font-size:12px}
.lg-or:before,.lg-or:after{content:"";flex:1;height:1px;background:#eef1f7}
.lg-mail{display:flex;flex-direction:column;gap:9px}
.lg-mail input{border:1px solid #e3e9f3;border-radius:10px;padding:10px 12px;font-size:13.5px;
  outline:none;background:#fbfcfe;color:#2b3441;width:100%}
.lg-mail input:focus{border-color:#9fb0e8;background:#fff}
.lg-row{display:flex;gap:8px}
.lg-row input{flex:1 1 auto;min-width:0}
.lg-row .btn{flex:0 0 auto;white-space:nowrap}
.btn.block{width:100%;justify-content:center;padding:11px}
.btn.primary.block{background:#4f63d8;border-color:#4f63d8;color:#fff}


/* 上传入口：+ 号 与 编辑器遮罩 */
.chat-ft .plus{flex:0 0 auto;width:38px;height:38px;border-radius:11px;border:1px solid #dde4f0;
  background:#fff;color:#4f63d8;font-size:20px;line-height:1;font-weight:600;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.15s}
.chat-ft .plus:hover{background:#eef2ff;border-color:#9fb0e8}
.ed-drop{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:6px;color:#8595b5;cursor:pointer;z-index:5;text-align:center;
  background:radial-gradient(ellipse at 50% 45%,rgba(79,99,216,.12),transparent 62%)}
.ed-drop.hide{display:none}
.ed-drop.on{background:radial-gradient(ellipse at 50% 45%,rgba(79,99,216,.3),rgba(79,99,216,.06) 70%)}
.ed-drop-ic{font-size:30px;line-height:1;color:#5f7be8;animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.ed-drop-t{font-size:14px;color:#c9d5ef;font-weight:600}
.ed-drop-s{font-size:12px;color:#7f8dab}

.proj-chip{margin:8px 10px 0;padding:7px 10px;border-radius:9px;background:#eef2ff;color:#3f52c4;
  font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}


/* 会员 */
.mem-card{display:flex;align-items:center;gap:10px;padding:13px 14px;margin-bottom:12px;
  border-radius:14px;background:linear-gradient(135deg,#4f63d8,#6f86f0);color:#fff}
.mem-card.off{background:linear-gradient(135deg,#8b94a3,#a9b3c2)}
.mem-l{flex:1;min-width:0}
.mem-l b{display:block;font-size:14px}
.mem-l span{font-size:12px;opacity:.85}
.mem-card .btn{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.4);color:#fff}
.mem-card .btn:hover{background:rgba(255,255,255,.28)}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.plan{position:relative;border:1.5px solid #e3e9f3;border-radius:12px;padding:14px 12px;cursor:pointer;
  display:block;text-align:center;background:#fbfcfe;transition:.15s}
.plan input{position:absolute;opacity:0}
.plan b{display:block;font-size:14px;color:#26313f}
.plan i{display:block;font-style:normal;font-size:22px;font-weight:800;color:#4f63d8;margin:4px 0 2px}
.plan span{font-size:11.5px;color:#98a2b3}
.plan em{position:absolute;top:-8px;right:8px;background:#ff9500;color:#fff;font-style:normal;
  font-size:10px;padding:2px 6px;border-radius:8px}
.plan:has(input:checked){border-color:#4f63d8;background:#f2f5ff;box-shadow:0 4px 14px rgba(79,99,216,.16)}
.payways{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.payway{border:1px solid #dde4f0;background:#fff;border-radius:11px;padding:12px;font-size:13.5px;
  font-weight:600;cursor:pointer;transition:.15s}
.payway.wx{color:#07c160;border-color:#c3f0d8;background:#f5fffa}
.payway.wx:hover{background:#eafaf1}
.payway.ali{color:#1677ff;border-color:#c7ddff;background:#f5f9ff}
.payway.ali:hover{background:#eaf3ff}
.payway:disabled{opacity:.55;cursor:wait}

.msg.sys{align-self:stretch;max-width:100%;background:#fff;border:1px dashed #d7e0f5;
  color:#3d4757;font:12px/1.7 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  white-space:pre-wrap;border-radius:12px}