*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;overflow:hidden}
body{
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
  background:#efe7d6;
  color:#3a3226;
  display:flex;flex-direction:column;
  -webkit-tap-highlight-color:transparent;
}
button{touch-action:manipulation}
/* ---------- 顶栏 ---------- */
.topbar{
  height:58px;flex:0 0 58px;
  background:linear-gradient(180deg,#6b4a2b,#5a3d23);
  color:#f6ecd8;
  display:flex;align-items:center;gap:14px;padding:0 14px;
  box-shadow:0 2px 8px rgba(0,0,0,.25);z-index:10;
}
.menu-btn{display:none;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:7px 12px;font-size:16px;cursor:pointer}
.menu-btn:hover{background:rgba(255,255,255,.24)}
.brand{font-size:20px;font-weight:700;letter-spacing:1px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.date-label{font-size:17px;font-weight:600;min-width:230px;text-align:center;white-space:nowrap}
.topbar button{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  border-radius:8px;padding:7px 14px;font-size:14px;cursor:pointer;
}
.topbar button:hover{background:rgba(255,255,255,.24)}
.topbar button.ghost{background:transparent}
.status{display:flex;align-items:center;gap:10px;font-size:14px;white-space:nowrap}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.dot.on{background:#7ee787;box-shadow:0 0 6px #7ee787}
.dot.off{background:#ff7b72}
.activity{color:#ffd9a0;font-size:13px;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.who-dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:4px;vertical-align:1px}
/* ---------- 主体 ---------- */
.main{flex:1;display:flex;min-height:0}
/* 左侧目录 */
.sidebar{
  width:230px;flex:0 0 230px;background:#f7f1e3;border-right:1px solid #d8cdb4;
  overflow-y:auto;padding:14px 10px;
}
.side-title{font-size:15px;font-weight:700;color:#6b4a2b;padding:4px 8px 12px}
#pageList{list-style:none}
#pageList li{
  padding:9px 10px;border-radius:8px;cursor:pointer;margin-bottom:4px;
  border:1px solid transparent;
}
#pageList li:hover{background:#efe4cc}
#pageList li.active{background:#6b4a2b;color:#fff}
#pageList .pl-date{display:block;font-size:14px;font-weight:700}
#pageList .pl-prev{display:block;font-size:12px;opacity:.75;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#pageList li.active .pl-prev{opacity:.85}
#drawerOverlay{display:none}
/* 中间纸页 */
.stage{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:26px 18px 90px}
.page{
  position:relative;width:min(860px,94%);height:1180px;background:#fffdf7;transform-origin:top center;
  box-shadow:0 10px 34px rgba(60,45,20,.28);border-radius:6px;
  overflow:hidden;
}

.page-head{padding:38px 60px 10px 60px}
.page-title{
  width:100%;border:none;background:transparent;outline:none;
  font-size:30px;font-weight:700;color:#2f2a20;font-family:inherit;
}
.page-title::placeholder{color:#c4b99f}
.page-date{font-size:15px;color:#a08a62;margin-top:6px}
.page-body{
  position:relative;padding:16px 60px 40px 60px;
  height:calc(100% - 120px);overflow-y:auto;
}
/* 文字：直接在日记页上编辑 */
.page-text{
  font-size:19px;line-height:2.05;color:#3a3226;white-space:pre-wrap;word-break:break-word;
  outline:none;min-height:60px;cursor:text;
}
.page-text:focus{caret-color:#b08d57}
.page-text:empty::before{content:"点击这里，直接在日记上写……";color:#c4b99f}
.page-media{margin-top:14px;display:flex;flex-direction:column;gap:14px}
.media-item{position:relative;display:block;max-width:560px}
.media-item img{max-width:100%;border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.18);display:block}
.media-item video{max-width:100%;border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.18);display:block;background:#111}
.media-del{
  position:absolute;top:6px;right:6px;width:26px;height:26px;border-radius:50%;
  border:none;background:rgba(0,0,0,.55);color:#fff;font-size:13px;cursor:pointer;line-height:1;
}
.media-del:hover{background:rgba(180,30,30,.85)}
/* 画布 */
#drawCanvas{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;touch-action:none;cursor:crosshair}
#drawCanvas.drawing{pointer-events:auto}
.draw-hint{
  position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  background:rgba(60,45,20,.82);color:#fff;font-size:14px;
  padding:8px 18px;border-radius:999px;pointer-events:none;white-space:nowrap;z-index:5;
}
/* ---------- 底部工具栏 ---------- */
.toolbar{
  height:60px;flex:0 0 60px;
  background:#5a3d23;color:#f6ecd8;
  display:flex;align-items:center;gap:10px;padding:0 16px;overflow-x:auto;
  box-shadow:0 -2px 8px rgba(0,0,0,.25);z-index:10;
}
.tool{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  border-radius:9px;padding:9px 16px;font-size:15px;cursor:pointer;white-space:nowrap;
}
.tool:hover{background:rgba(255,255,255,.24)}
.tool.small{padding:8px 11px;font-size:14px}
.tool.active{background:#e8a33d;color:#4a3008;border-color:#e8a33d;font-weight:700}
.draw-tools{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border-radius:10px;padding:6px 10px}
.draw-tools .brush-btn{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  border-radius:7px;padding:6px 12px;font-size:14px;cursor:pointer;white-space:nowrap;
}
.draw-tools .brush-btn:hover{background:rgba(255,255,255,.24)}
.draw-tools .brush-btn.active{background:#e8a33d;color:#4a3008;border-color:#e8a33d;font-weight:700}
.draw-tools .swatch{width:26px;height:26px;border-radius:50%;cursor:pointer;border:2px solid transparent;display:inline-block;flex:0 0 auto}
.draw-tools .swatch.active{border-color:#fff;box-shadow:0 0 0 2px #e8a33d}
.draw-tools button{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  border-radius:7px;padding:6px 12px;font-size:14px;cursor:pointer;white-space:nowrap;
}
.draw-tools button:hover{background:rgba(255,255,255,.24)}
.draw-tools button.active{background:#e8a33d;color:#4a3008;border-color:#e8a33d}
.sep{width:1px;height:22px;background:rgba(255,255,255,.25);margin:0 2px}
.progress{
  background:rgba(255,255,255,.15);color:#fff;font-size:14px;
  border-radius:999px;padding:7px 14px;white-space:nowrap;
}
.hidden{display:none!important}
/* ---------- 手机 & 平板适配 ---------- */
@media (max-width:900px){
  .topbar{height:54px;flex:0 0 54px;gap:8px;padding:0 8px}
  .menu-btn{display:block}
  .brand{font-size:15px}
  .date-label{min-width:0;font-size:14px;flex:1}
  .nav{flex:1;gap:6px}
  .nav .ghost{padding:7px 9px;font-size:13px}
  .status{font-size:12px;gap:6px}
  .activity{display:none}
  /* 目录变成左侧抽屉 */
  .sidebar{
    position:fixed;left:0;top:54px;bottom:0;width:270px;z-index:40;
    transform:translateX(-105%);transition:transform .25s ease;
    box-shadow:6px 0 20px rgba(0,0,0,.28);
  }
  .sidebar.open{transform:translateX(0)}
  #drawerOverlay{
    position:fixed;inset:0;background:rgba(40,30,15,.45);z-index:35;
    display:none;
  }
  #drawerOverlay.show{display:block}
  /* 纸页占满宽度，高度保持稳定（保证两边画的坐标一致） */
  .stage{padding:14px 8px 80px}
  .page{width:100%;height:1180px}
  .page-head{padding:26px 24px 8px 24px}
  .page-title{font-size:24px}
  .page-body{padding:16px 24px 30px 24px;height:calc(100% - 116px)}
  .page-text{font-size:17px}
    /* 工具栏自动换行，按钮加大便于手指点击 */
  .toolbar{flex-wrap:wrap;height:auto;padding:8px;gap:8px;overflow:visible}
  .tool{padding:9px 13px;font-size:14px}
  .draw-tools{flex-wrap:wrap}
  .draw-tools button,.draw-tools .brush-btn{padding:8px 12px}
  .draw-hint{white-space:normal;max-width:92%;text-align:center;line-height:1.5}
}