:root{
  --bg:#f6f7f9;
  --panel:#ffffff;
  --line:#e5e7eb;
  --line-soft:#eef0f3;
  --text:#1f2328;
  --muted:#6b7280;
  --accent:#2f6feb;
  --accent-soft:#eaf1fe;
  --danger:#d64545;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,40,.05), 0 4px 14px rgba(16,24,40,.05);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}

/* ---------- 登录页：不规则艺术 · 已公开笔记浮现 ---------- */
.stage{
  position:relative;min-height:100vh;overflow:hidden;
  background:
    radial-gradient(1100px 620px at 10% 6%,  #e6eeff 0%, rgba(230,238,255,0) 62%),
    radial-gradient(920px 720px at 92% 16%,  #f4e9ff 0%, rgba(244,233,255,0) 64%),
    radial-gradient(1000px 780px at 62% 96%, #e4fbf3 0%, rgba(228,251,243,0) 60%),
    linear-gradient(158deg,#f8fafd 0%,#f2f5fb 46%,#f7f4fb 100%);
}
.stage::after{ /* 细颗粒质感 */
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
}
.blob{
  position:absolute;border-radius:50%;filter:blur(64px);opacity:.5;mix-blend-mode:multiply;
  animation:blobdrift 22s ease-in-out infinite alternate;pointer-events:none;
}
.blob.b1{width:340px;height:340px;left:-80px;top:6%;background:#8fb4ff}
.blob.b2{width:300px;height:300px;right:6%;top:-60px;background:#d9b8ff;animation-duration:26s}
.blob.b3{width:380px;height:380px;left:36%;bottom:-140px;background:#9fe8d3;animation-duration:30s}
.blob.b4{width:220px;height:220px;right:22%;bottom:8%;background:#ffd9a8;animation-duration:19s;opacity:.42}
@keyframes blobdrift{
  from{transform:translate3d(0,0,0) scale(1)}
  to{transform:translate3d(36px,-28px,0) scale(1.12)}
}

.sc-lead{position:absolute;left:6vw;top:46px;z-index:4;pointer-events:none}
.sc-lead-t{font-size:40px;font-weight:800;letter-spacing:-1px;color:#1b2436;line-height:1.05}
.sc-lead-t::after{content:'';display:block;width:52px;height:5px;border-radius:3px;margin-top:10px;
  background:linear-gradient(90deg,#2f6feb,#8b5cf6 45%,#10b981)}
.sc-lead-s{margin-top:10px;font-size:13.5px;color:#6b7280;letter-spacing:2px}

.sc-layer{position:absolute;inset:0;z-index:2}
/* 不规则装饰形状：填补右侧留白，纯装饰 */
.sc-deco{position:absolute;z-index:1;pointer-events:none;--dr:0deg;transform:rotate(var(--dr));
  animation:decofloat 26s ease-in-out infinite alternate}
.sc-deco.d1{
  right:-110px;bottom:-140px;width:430px;height:390px;--dr:-9deg;
  background:linear-gradient(135deg,rgba(47,111,235,.16),rgba(139,92,246,.19) 55%,rgba(16,185,129,.14));
  border-radius:63% 37% 55% 45%/48% 60% 40% 52%;filter:blur(6px);
}
.sc-deco.d2{
  right:14%;top:-80px;width:240px;height:210px;--dr:7deg;
  background:linear-gradient(135deg,rgba(236,72,153,.13),rgba(245,158,11,.16));
  border-radius:42% 58% 63% 37%/58% 42% 58% 42%;filter:blur(4px);animation-duration:21s;
}
@keyframes decofloat{
  from{transform:rotate(var(--dr)) translate3d(0,0,0)}
  to{transform:rotate(calc(var(--dr) + 5deg)) translate3d(-18px,-16px,0)}
}
.sc-slot{
  position:absolute;left:var(--x);top:var(--y);width:var(--w);
  transform:translate3d(var(--px,0px),var(--py,0px),0);
  transition:transform .7s cubic-bezier(.2,.7,.2,1);will-change:transform;
}
.sc-slot[data-id]{cursor:pointer}
.sc-card{transform:rotate(var(--r));animation:floaty var(--dur) ease-in-out var(--delay) infinite alternate;will-change:transform}
.sc-in{
  animation:cardin .9s cubic-bezier(.2,.85,.25,1) var(--in) both;
  background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.92);border-radius:14px;
  padding:12px 14px 10px;opacity:var(--op);filter:blur(var(--b));
  box-shadow:0 12px 30px rgba(22,36,74,.10),0 2px 6px rgba(22,36,74,.06);
  backdrop-filter:blur(10px) saturate(1.3);-webkit-backdrop-filter:blur(10px) saturate(1.3);
  transition:transform .28s cubic-bezier(.2,.8,.2,1),box-shadow .28s,opacity .28s,filter .28s;
}
.sc-slot:hover .sc-in{transform:translateY(-7px) scale(1.035);opacity:1;filter:blur(0);
  box-shadow:0 22px 48px rgba(22,36,74,.17),0 3px 10px rgba(22,36,74,.08)}
@keyframes floaty{
  from{transform:rotate(var(--r)) translate3d(0,0,0)}
  to{transform:rotate(var(--r)) translate3d(0,-16px,0)}
}
@keyframes cardin{
  from{opacity:0;transform:translateY(26px) scale(.94)}
  to{opacity:var(--op);transform:none}
}
.sc-thumb{height:88px;border-radius:10px;overflow:hidden;margin-bottom:9px;background:#eef1f6}
.sc-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.sc-title{
  font-size:13.5px;font-weight:700;color:#1b2436;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.sc-ex{
  font-size:12px;color:#6b7280;line-height:1.55;margin-top:5px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.sc-foot{display:flex;align-items:center;gap:6px;margin-top:9px;font-size:11px;color:#8b93a1}
.sc-dot{width:6px;height:6px;border-radius:50%;background:var(--c,#2f6feb);flex:0 0 6px}
.sc-t{color:#aab2bf}
.sc-in.ghost{
  border:1px dashed #c3cbd8;background:rgba(255,255,255,.5);color:#7b8493;
  font-size:12.5px;line-height:1.8;text-align:center;padding:16px 14px;box-shadow:none;
}
.sc-in.ghost b{color:#4b5563}

.stage-panel{
  position:relative;z-index:6;min-height:100vh;display:flex;align-items:center;justify-content:flex-end;
  padding:36px 7vw 36px 24px;
}
.auth-card{
  width:100%;max-width:372px;background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.95);
  border-radius:20px;padding:30px 28px 22px;
  box-shadow:0 26px 64px rgba(20,32,70,.16),0 2px 8px rgba(20,32,70,.06);
  backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);
}
.brand{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:700;margin-bottom:4px}
.brand span{font-size:20px}
.brand.in-panel{display:none}
.auth-sub{color:var(--muted);font-size:13px;margin:0 0 20px}
.sc-count{margin-top:12px;text-align:center}
.sc-n{font-size:11.5px;color:#8b93a1;background:rgba(255,255,255,.7);border:1px solid #eceff4;
  border-radius:999px;padding:4px 12px;display:inline-block}
.sc-n b{color:var(--accent)}
.field{margin-bottom:12px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field input{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.btn{
  width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;
  transition:background .15s,border-color .15s;
}
.btn:hover{background:#f3f4f6}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn-primary:hover{background:#2559c9;border-color:#2559c9}
.btn:disabled{opacity:.6;cursor:not-allowed}
.auth-switch{margin-top:14px;text-align:center;font-size:13px;color:var(--muted)}
.auth-switch a{color:var(--accent);cursor:pointer;text-decoration:none}
.err{
  margin-top:12px;padding:8px 10px;border-radius:8px;background:#fdecec;color:var(--danger);
  font-size:13px;display:none;
}
.err.show{display:block}

/* ---------- 主界面 ---------- */
.layout{display:flex;height:100vh;overflow:hidden}

.sidebar{
  width:280px;flex:0 0 280px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;min-height:0;
}
.side-head{padding:14px 14px 10px;border-bottom:1px solid var(--line-soft)}
.side-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.search{
  width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#f9fafb;outline:none;
}
.search:focus{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.tabs{display:flex;gap:6px;margin-top:10px}
.tab{
  flex:1;padding:6px 0;border:1px solid var(--line);background:#f9fafb;border-radius:8px;
  font-size:12.5px;color:var(--muted);
}
.tab:hover{background:#f3f4f6}
.tab.on{background:var(--accent-soft);border-color:#cddffc;color:var(--accent);font-weight:600}
.tab-badge{
  display:none;min-width:16px;height:16px;line-height:16px;padding:0 4px;margin-left:4px;
  background:var(--danger);color:#fff;border-radius:8px;font-size:10px;font-weight:700;
}
.tab-badge:not(:empty){display:inline-block}
.chips{display:flex;gap:6px;margin-top:8px}
.chip{
  flex:1;padding:4px 0;border:1px solid var(--line);background:#fff;border-radius:6px;
  font-size:11.5px;color:var(--muted);
}
.chip.on{background:#fff7e6;border-color:#f3d19b;color:#a15c07;font-weight:600}
.btn-new{
  padding:6px 12px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;
  font-size:13px;font-weight:600;white-space:nowrap;
}
.btn-new:hover{background:#2559c9}

.list{flex:1;overflow-y:auto;padding:6px}
.item{
  padding:10px 12px;border-radius:var(--radius);cursor:pointer;border:1px solid transparent;margin-bottom:2px;
}
.item:hover{background:#f4f6f8}
.item.active{background:var(--accent-soft);border-color:#cddffc}
.item-title{
  font-weight:600;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  display:flex;align-items:center;gap:6px;
}
.pin{color:#e0a11b;font-size:12px}
.item-excerpt{color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.item-time{color:#9ca3af;font-size:11.5px;margin-top:3px;display:flex;align-items:center;gap:6px}
.badge{background:#eaf7ee;color:#1a7f37;border-radius:4px;padding:0 5px;font-size:10.5px}
.badge.wait{background:#fff7e6;color:#a15c07}
.badge.rej{background:#fdecec;color:var(--danger)}
.badge-user{background:#eef2ff;color:#4338ca;border-radius:4px;padding:0 5px;font-size:10.5px}
.ro-tip{
  max-width:760px;margin:0 0 12px;padding:7px 12px;border:1px solid #cddffc;
  background:var(--accent-soft);color:var(--accent);border-radius:8px;font-size:12.5px;
}
.ro-tip.wait{background:#fff7e6;border-color:#f3d19b;color:#a15c07}
.ro-tip.rej{background:#fdecec;border-color:#f5c6c6;color:var(--danger)}
.title-input[readonly]{color:var(--muted)}
.empty{padding:28px 16px;text-align:center;color:var(--muted);font-size:13px}

.side-foot{
  border-top:1px solid var(--line-soft);padding:10px 14px;display:flex;
  align-items:center;justify-content:space-between;gap:8px;font-size:13px;
}
.who{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.link{cursor:pointer;color:var(--accent);text-decoration:none;font-size:12.5px;white-space:nowrap}

.main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.main-head{
  padding:12px 20px;border-bottom:1px solid var(--line);background:var(--panel);
  display:flex;align-items:center;gap:8px;
}
.title-input{
  flex:1;min-width:0;border:none;outline:none;background:transparent;
  font-size:17px;font-weight:600;padding:4px 0;
}
.tools{display:flex;gap:6px;align-items:center}
.tool{
  padding:5px 10px;border:1px solid var(--line);background:#fff;border-radius:7px;font-size:12.5px;color:var(--muted);
}
.tool:hover{background:#f3f4f6;color:var(--text)}
.tool.on{background:var(--accent-soft);border-color:#cddffc;color:var(--accent)}
.tool.wait{background:#fff7e6;border-color:#f3d19b;color:#a15c07}
.tool.rej{background:#fdecec;border-color:#f5c6c6;color:var(--danger)}
.tool.danger:hover{background:#fdecec;border-color:#f5c6c6;color:var(--danger)}
.status{font-size:12px;color:var(--muted);min-width:52px;text-align:right}

/* 管理员审核条 */
.review-bar{
  display:flex;align-items:center;gap:8px;padding:8px 20px;
  background:#fffbf0;border-bottom:1px solid #f3d19b;font-size:12.5px;
}
.review-info{flex:1;color:#7a5200;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.review-info .wait{color:#a15c07}
.review-info .ok{color:#1a7f37}
.btn{
  padding:5px 12px;border-radius:7px;border:1px solid var(--line);background:#fff;
  font-size:12.5px;color:var(--text);
}
.btn-ok{border-color:#1a7f37;background:#1a7f37;color:#fff;font-weight:600}
.btn-ok:hover{background:#166534}
.btn-no{border-color:#f5c6c6;background:#fff;color:var(--danger)}
.btn-no:hover{background:#fdecec}

.body{flex:1;overflow:auto;padding:18px 20px;transition:background .15s}
.body.drag-over{background:#eaf1fe;box-shadow:inset 0 0 0 2px var(--accent)}
.body.drag-over .editor::placeholder{color:var(--accent)}

/* ---------- 附件 ---------- */
.files{margin-top:18px}
.files-head{font-size:12.5px;color:var(--muted);margin-bottom:8px;font-weight:600}
.files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.file-card{border:1px solid var(--line);border-radius:10px;background:var(--panel);overflow:hidden;box-shadow:var(--shadow)}
.file-media{background:#f4f6f8;display:flex;align-items:center;justify-content:center;min-height:120px;overflow:hidden}
.file-media.image{background:#fafafa}
.thumb{width:100%;max-height:220px;object-fit:cover;display:block;cursor:zoom-in}
.player{width:100%;display:block;background:#000}
.pkg{padding:16px 12px;text-align:center;width:100%}
.pkg-icon{font-size:28px}
.pkg-name{font-size:12.5px;margin-top:6px;word-break:break-all;color:#374151}
.pkg-size{font-size:11.5px;color:var(--muted);margin-top:2px}
.file-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 10px;border-top:1px solid var(--line-soft)}
.file-name{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.file-ops{display:flex;gap:8px;flex:0 0 auto}
.op{font-size:12px;color:var(--accent);cursor:pointer;text-decoration:none;white-space:nowrap}
.op:hover{text-decoration:underline}
.op.danger{color:var(--danger)}

.lightbox{position:fixed;inset:0;background:rgba(16,24,40,.82);z-index:80;display:flex;align-items:center;justify-content:center;cursor:zoom-out;padding:24px}
.lightbox img{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.preview img{max-width:100%;border-radius:8px}
.editor{
  width:100%;height:100%;min-height:420px;resize:none;border:none;outline:none;background:transparent;
  font:14.5px/1.75 ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;
  tab-size:4;
}
.preview{
  max-width:760px;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:22px 26px;box-shadow:var(--shadow);
}
.preview h1,.preview h2,.preview h3{line-height:1.35;margin:.9em 0 .5em}
.preview h1{font-size:22px}.preview h2{font-size:18px}.preview h3{font-size:15.5px}
.preview p{margin:.6em 0}
.preview ul,.preview ol{padding-left:22px}
.preview code{background:#f1f3f5;padding:2px 5px;border-radius:4px;font-size:13px}
.preview pre{background:#f8f9fa;border:1px solid var(--line-soft);padding:12px;border-radius:8px;overflow:auto}
.preview pre code{background:none;padding:0}
.preview blockquote{margin:.7em 0;padding:2px 14px;border-left:3px solid var(--line);color:var(--muted)}
.preview a{color:var(--accent)}
.preview hr{border:none;border-top:1px solid var(--line);margin:1.2em 0}
.preview table{border-collapse:collapse}
.preview td,.preview th{border:1px solid var(--line);padding:6px 10px}

.placeholder{
  height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--muted);gap:8px;
}
.placeholder .big{font-size:40px}

.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(10px);
  background:#1f2328;color:#fff;padding:9px 16px;border-radius:8px;font-size:13px;
  opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;z-index:60;
}
.toast.show{opacity:.95;transform:translateX(-50%) translateY(0)}

@media (max-width:720px){
  .sidebar{position:absolute;z-index:20;height:100%;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}
  .sidebar.open{transform:translateX(0)}
  .btn-menu{display:inline-block !important}
  .main{margin-left:0}
}
.btn-menu{display:none;padding:5px 9px;border:1px solid var(--line);background:#fff;border-radius:7px}
.mask{position:fixed;inset:0;background:rgba(16,24,40,.35);z-index:15;display:none}
.mask.show{display:block}

/* ---------- 登录页响应式 / 动效降级 ---------- */
@media (max-width:1080px){
  .sc-slot:nth-child(n+7){display:none}
  .stage-panel{padding-right:5vw}
}
@media (max-width:860px){
  .sc-lead{display:none}
  .brand.in-panel{display:flex}
  .stage-panel{justify-content:center;padding:24px 18px}
  .sc-slot:nth-child(n+5){display:none}
  .sc-slot{--op:.5 !important}
}
@media (max-width:560px){
  .sc-slot:nth-child(n+4){display:none}
  .sc-slot:nth-child(2),.sc-slot:nth-child(3){--y:76% !important}
}
@media (prefers-reduced-motion:reduce){
  .sc-card,.blob,.sc-deco{animation:none !important}
  .sc-in{animation:none !important}
  .sc-slot{transition:none}
}