*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#f6f6f7;--card:#fff;--ink:#15171b;--ink2:#5c6270;--ink3:#9096a3;
  --line:#e9eaed;--line2:#f2f3f5;
  --red:#e8404a;--red-soft:#fdeef0;
  --blue:#3b6ef0;--blue-soft:#eef3ff;
  --green:#0e9b6e;--green-soft:#e8f7f1;
  --amber:#b8730a;--amber-soft:#fdf4e4;
  --purple:#6b4de0;--purple-soft:#f1eeff;
}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
  padding-bottom:calc(32px + env(safe-area-inset-bottom));
  overscroll-behavior-y:none;
}
.app{max-width:620px;margin:0 auto}
[hidden]{display:none!important}

/* ---------- 登录 ---------- */
.gate{
  position:fixed;inset:0;z-index:100;background:var(--bg);
  display:flex;align-items:center;justify-content:center;padding:28px;
}
.gate-card{width:100%;max-width:340px;text-align:center}
.gate-mark{
  width:54px;height:54px;border-radius:16px;margin:0 auto 20px;
  background:linear-gradient(145deg,#ff5a63,#e8404a);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px -10px rgba(232,64,74,.7);
}
.gate h1{font-size:21px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.gate p{font-size:13.5px;color:var(--ink3);margin-bottom:24px}
.gate input{
  width:100%;height:46px;border:1px solid var(--line);border-radius:12px;
  background:#fff;padding:0 15px;font-size:16px;font-family:inherit;color:var(--ink);
  outline:none;text-align:center;letter-spacing:.06em;transition:.15s;
}
.gate input:focus{border-color:var(--red);box-shadow:0 0 0 3px var(--red-soft)}
.gate button{
  width:100%;height:46px;margin-top:12px;border:none;border-radius:12px;
  background:var(--ink);color:#fff;font-size:15px;font-weight:600;
  font-family:inherit;cursor:pointer;transition:.15s;
}
.gate button:active{transform:scale(.985);opacity:.9}
.gate button:disabled{opacity:.45}
.gate .err{font-size:13px;color:var(--red);margin-top:12px;min-height:19px}

/* ---------- 顶栏 ---------- */
.top{
  position:sticky;top:0;z-index:50;
  background:rgba(246,246,247,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:calc(10px + env(safe-area-inset-top)) 16px 10px;
}
.title-row{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.title-row h1{font-size:17px;font-weight:700;letter-spacing:-.01em;flex:1}
.sync{
  display:inline-flex;align-items:center;gap:5px;font-size:11.5px;color:var(--ink3);
  flex:none;
}
.sync i{width:6px;height:6px;border-radius:99px;background:var(--green);display:block}
.sync.off i{background:var(--amber)}
.sync.err i{background:var(--red)}

.search{
  display:flex;align-items:center;gap:8px;background:#fff;
  border:1px solid var(--line);border-radius:11px;height:40px;padding:0 12px;transition:.15s;
}
.search:focus-within{border-color:var(--red);box-shadow:0 0 0 3px var(--red-soft)}
.search svg{flex:none;opacity:.4}
.search input{flex:1;border:none;outline:none;background:none;font-size:15px;color:var(--ink);font-family:inherit;min-width:0}
.search input::placeholder{color:var(--ink3)}

.seg{display:flex;gap:6px;margin-top:10px;overflow-x:auto;scrollbar-width:none}
.seg::-webkit-scrollbar{display:none}
.seg button{
  flex:none;border:1px solid var(--line);background:#fff;color:var(--ink2);
  font-size:13px;padding:7px 14px;border-radius:99px;font-family:inherit;
  cursor:pointer;transition:.15s;white-space:nowrap;
}
.seg button .c{opacity:.5;margin-left:5px;font-size:12px;font-variant-numeric:tabular-nums}
.seg button.on{background:var(--ink);border-color:var(--ink);color:#fff}

.prog{display:flex;align-items:center;gap:9px;margin-top:9px}
.prog .bar{flex:1;height:4px;background:#e6e7ea;border-radius:99px;overflow:hidden}
.prog .bar i{display:block;height:100%;background:var(--green);border-radius:99px;width:0;transition:width .3s}
.prog .txt{font-size:11.5px;color:var(--ink3);font-variant-numeric:tabular-nums;flex:none}

/* ---------- 列表 ---------- */
.list{padding:12px 14px 0}
.grp{margin-bottom:22px}
.gh{display:flex;align-items:center;gap:9px;padding:2px 2px 9px;cursor:pointer}
.gh .dot{width:3px;height:15px;border-radius:99px;background:var(--red);flex:none}
.gh h2{font-size:15.5px;font-weight:650;letter-spacing:-.01em;flex:1}
.gh .cnt{font-size:11.5px;color:var(--ink3);background:#eceef1;border-radius:99px;padding:1px 8px;font-variant-numeric:tabular-nums}
.gh .cv{transition:transform .2s;color:var(--ink3);flex:none}
.grp.fold .cv{transform:rotate(-90deg)}
.grp.fold .items{display:none}

.items{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.it{display:flex;gap:11px;padding:13px 13px 13px 12px;border-bottom:1px solid var(--line2);align-items:flex-start}
.it:last-child{border-bottom:none}
.it.open{background:#fcfcfd}

.ck{
  flex:none;width:21px;height:21px;border-radius:99px;border:1.6px solid #d3d6dc;
  background:none;margin-top:1px;padding:0;cursor:pointer;position:relative;transition:.15s;
}
.ck::after{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/12px no-repeat;
  opacity:0;transition:.15s;
}
.it.done .ck{background:var(--green);border-color:var(--green)}
.it.done .ck::after{opacity:1}
.it.done .tx a{color:var(--ink3);text-decoration:line-through;text-decoration-color:#c9ccd3}

.body{flex:1;min-width:0}
.tx a{
  color:var(--ink);text-decoration:none;font-size:14.5px;font-weight:500;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.45;
}
.meta{display:flex;align-items:center;gap:6px;margin-top:6px;flex-wrap:wrap}
.sec{font-size:11px;color:var(--ink3);background:#f4f5f7;padding:2px 7px;border-radius:5px}
.hb{font-size:11px;padding:2px 7px;border-radius:5px;background:var(--blue-soft);color:var(--blue)}
.hb.h电商带货{background:var(--red-soft);color:var(--red)}
.hb.h虚拟产品{background:var(--green-soft);color:var(--green)}
.hb.hAI提效{background:var(--purple-soft);color:var(--purple)}
.hb.h矩阵工具{background:var(--amber-soft);color:var(--amber)}
.hb.h案例复盘{background:#eef0f2;color:#4b5260}
.dirbadge{font-size:11px;color:var(--red);font-weight:600}
mark{background:#fff0a8;border-radius:2px;padding:0 1px}

/* 右侧操作列 */
.acts{flex:none;display:flex;flex-direction:column;gap:1px;margin-top:-3px}
.acts button{
  width:26px;height:26px;border:none;background:none;padding:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;cursor:pointer;color:#c3c7ce;transition:.15s;position:relative;
}
.acts button:active{background:#f0f1f3}
.acts .star.on{color:#efa01d}
.nb.has{color:var(--blue)}
.nb.has::after{
  content:"";position:absolute;top:3px;right:3px;width:5px;height:5px;
  border-radius:99px;background:var(--blue);
}
.note-preview{
  margin-top:7px;font-size:12.5px;color:var(--ink2);background:#f7f8fa;
  border-left:2px solid #dfe2e7;border-radius:0 6px 6px 0;padding:6px 9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  white-space:pre-wrap;word-break:break-word;
}
.note-box{display:none;margin-top:8px}
.it.open .note-box{display:block}
.it.open .note-preview{display:none}
.note-box textarea{
  width:100%;min-height:76px;border:1px solid var(--line);border-radius:10px;
  padding:9px 11px;font-size:14px;line-height:1.6;font-family:inherit;color:var(--ink);
  background:#fff;outline:none;resize:none;transition:.15s;
}
.note-box textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,110,240,.1)}
.note-bar{display:flex;align-items:center;justify-content:space-between;margin-top:6px;gap:8px}
.note-bar .hint{font-size:11px;color:var(--ink3)}
.note-bar button{
  border:none;background:var(--blue);color:#fff;font-size:12.5px;font-weight:600;
  padding:6px 14px;border-radius:8px;font-family:inherit;cursor:pointer;
}
.note-bar button:active{opacity:.85}

/* 自定义标签 */
.utag{
  font-size:11px;padding:2px 7px;border-radius:5px;
  background:#f1f0ff;color:#6b4de0;border:1px solid #e6e3ff;
}
.tag-row{
  display:flex;align-items:center;gap:6px;margin-top:7px;
  border:1px solid var(--line);border-radius:9px;padding:0 9px;height:34px;background:#fff;
  transition:.15s;
}
.tag-row:focus-within{border-color:#6b4de0;box-shadow:0 0 0 3px rgba(107,77,224,.08)}
.tag-ico{font-size:13px;color:#b8bcc5;flex:none;line-height:1}
.tag-in{
  flex:1;border:none;outline:none;background:none;font-size:13px;
  font-family:inherit;color:var(--ink);min-width:0;
}
.tag-in::placeholder{color:#b8bcc5}

/* 我的笔记 */
.notes-wrap{padding:14px 14px 0}
.scratch{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:18px}
.scratch h3{font-size:13px;font-weight:650;color:var(--ink2);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.scratch h3 span{font-size:11px;font-weight:400;color:var(--ink3)}
.scratch textarea{
  width:100%;min-height:96px;border:none;outline:none;resize:none;background:none;
  font-size:14px;line-height:1.7;font-family:inherit;color:var(--ink);
}
.scratch textarea::placeholder{color:#b8bcc5}
.scratch .foot{display:flex;justify-content:flex-end;font-size:11px;color:var(--ink3);margin-top:4px}

.tools{display:flex;gap:8px;margin-bottom:18px}
.tools button{
  flex:1;height:40px;border:1px solid var(--line);background:#fff;border-radius:11px;
  font-size:13px;font-family:inherit;color:var(--ink2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:6px;
}
.tools button:active{background:#f7f8fa}
.tools button.danger{color:var(--red);border-color:#f6dfe1}

.empty{padding:60px 20px;text-align:center;color:var(--ink3);font-size:14px;line-height:1.9}
.empty b{display:block;color:var(--ink2);font-size:15px;margin-bottom:4px}
.foot{padding:10px 20px 24px;text-align:center;font-size:11.5px;color:#b0b4bd;line-height:1.7}

.toast{
  position:fixed;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));
  transform:translateX(-50%) translateY(14px);opacity:0;
  background:rgba(21,23,27,.92);color:#fff;font-size:13px;
  padding:9px 16px;border-radius:99px;z-index:200;pointer-events:none;
  transition:.22s;white-space:nowrap;max-width:88vw;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}