:root{
  --study-ink:#18233f;
  --study-muted:#73809b;
  --study-blue:#3f5dc1;
  --study-green:#318066;
  --study-coral:#ec856b;
  --study-line:rgba(75,92,135,.16);
  --study-glass:rgba(255,255,255,.86);
}

html{scroll-behavior:smooth}
body.study-page{
  min-height:100vh;
  color:var(--study-ink);
  background:
    radial-gradient(circle at 8% 4%,rgba(117,151,234,.28),transparent 32rem),
    radial-gradient(circle at 92% 8%,rgba(247,171,145,.30),transparent 30rem),
    linear-gradient(145deg,#eef3ff 0%,#faf6f7 52%,#f4f1ff 100%);
  background-attachment:fixed;
  padding:24px 16px 48px;
}
body.study-page::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.16;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
  z-index:-1;
}

.study-topbar{
  width:min(1200px,100%);
  margin:0 auto 18px;
  padding:10px 12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  border:1px solid rgba(255,255,255,.72);
  border-radius:20px;
  background:rgba(255,255,255,.58);
  box-shadow:0 18px 45px rgba(41,52,89,.10);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  font-family:"Microsoft YaHei","PingFang SC",sans-serif;
}
.study-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--study-ink);
  font-size:15px;
  font-weight:800;
  text-decoration:none;
  white-space:nowrap;
}
.study-brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  color:#fff;
  background:linear-gradient(145deg,#718be2,#3f5dc1);
  box-shadow:0 8px 18px rgba(63,93,193,.25);
  font:700 22px/1 Georgia,serif;
}
.study-switch{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.study-switch a{
  min-width:64px;
  padding:9px 14px;
  border-radius:12px;
  color:#fff;
  text-align:center;
  text-decoration:none;
  font-size:13px;
  font-weight:800;
  box-shadow:0 7px 18px rgba(44,57,96,.12);
  transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease;
}
.study-switch a:nth-child(1){background:var(--study-blue)}
.study-switch a:nth-child(2){background:var(--study-green)}
.study-switch a:nth-child(3){background:var(--study-coral)}
.study-switch a:hover{transform:translateY(-2px);box-shadow:0 11px 24px rgba(44,57,96,.19)}
.study-switch a[aria-current="page"]{outline:3px solid rgba(255,255,255,.9);outline-offset:-5px}

body.study-page .paper,
body.study-page .container{
  border:1px solid rgba(255,255,255,.82);
  border-radius:26px;
  background:var(--study-glass);
  box-shadow:0 28px 70px rgba(45,55,89,.14);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
}
body.study-page .paper{overflow:visible}
body.paper-view .head,
body.analysis-view .head{
  border-bottom-color:rgba(52,66,103,.28);
}
body.paper-view .head h1,
body.analysis-view .head h1,
body.table-view .header h1{color:var(--study-ink)}
body.paper-view .sec-title,
body.analysis-view .sec-title{
  color:var(--study-ink);
  border-bottom-color:rgba(52,66,103,.24);
}
body.paper-view .q,
body.analysis-view .a{
  border:1px solid var(--study-line);
  border-radius:16px;
  padding:16px 18px;
  background:rgba(255,255,255,.72);
  box-shadow:0 8px 24px rgba(47,60,98,.05);
}
body.analysis-view .divider{display:none}
body.analysis-view .wbtn{border-radius:999px;padding:3px 11px}
body.table-view .container{max-width:1200px}
body.table-view .header{background:linear-gradient(120deg,rgba(238,243,255,.9),rgba(255,244,240,.86))}
body.table-view .toolbar{background:rgba(255,255,255,.64)}
body.table-view tbody tr{scroll-margin-top:92px;transition:filter .2s ease}
body.table-view tbody tr:target{
  position:relative;
  outline:4px solid rgba(236,133,107,.52);
  outline-offset:-4px;
  animation:study-target 1.2s ease 2;
}
body.table-view tbody tr:target td:first-child{background:#fff0ea}
@keyframes study-target{0%,100%{filter:none}50%{filter:drop-shadow(0 0 14px rgba(236,133,107,.62))}}

@media(max-width:768px){
  body.study-page{padding:10px 7px 28px}
  .study-topbar{margin-bottom:10px;border-radius:16px;align-items:flex-start}
  .study-brand{font-size:0}
  .study-brand-mark{width:36px;height:36px}
  .study-switch{gap:5px}
  .study-switch a{min-width:54px;padding:8px 10px;font-size:12px;border-radius:10px}
  body.study-page .paper,body.study-page .container{border-radius:18px}
  body.paper-view .q,body.analysis-view .a{padding:12px 12px;border-radius:13px}
  body.table-view .toolbar>div[style*="margin-left:auto"]{margin-left:0!important;width:100%;justify-content:flex-start}
}

@media(max-width:600px){
  .study-topbar{padding:8px;gap:0}
  .study-brand{display:none}
  .study-switch{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .study-switch a{min-width:0;width:100%;padding:9px 6px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

@media print{
  body.study-page{padding:0;background:#fff;color:#111}
  body.study-page::before,.study-topbar{display:none!important}
  body.study-page .paper,body.study-page .container{border:0;border-radius:0;background:#fff;box-shadow:none;backdrop-filter:none;overflow:visible}
  body.paper-view .q,body.analysis-view .a{border:0;border-radius:0;padding:0;background:#fff;box-shadow:none}
  body.analysis-view .divider{display:block}
}
.score-editor{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}.score-editor label{display:inline-flex;align-items:center;gap:5px}.score-editor input{width:52px;border:0;border-bottom:1.5px solid currentColor;background:transparent;text-align:center;font:inherit;outline:none}.score-editor input:focus{border-color:#3f5dc1;background:#f4f7ff}.score-editor .score-sync{width:100%;min-height:16px;color:#2d8b68;font:600 11px/1.3 "Microsoft YaHei",sans-serif}@media print{.score-editor input{appearance:none}.score-editor .score-sync{display:none}}@media(max-width:560px){.score-editor{gap:5px;font-size:12px!important}.score-editor input{width:38px}}
.wrong-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:18px;background:rgba(23,32,56,.42);backdrop-filter:blur(8px);z-index:1200}.wrong-modal.show{display:flex}.wrong-modal-card{position:relative;width:min(420px,100%);padding:24px;border:1px solid rgba(255,255,255,.8);border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(246,248,255,.92));box-shadow:0 26px 70px rgba(34,47,85,.25);font-family:"Microsoft YaHei",sans-serif}.wrong-modal-card h3{margin:0 0 6px;color:#162341;font-size:20px}.wrong-modal-ref{margin:0 0 14px;color:#73809a;font-size:13px}.wrong-modal-close{position:absolute;right:14px;top:10px;border:0;background:transparent;color:#93a0b8;font-size:26px;cursor:pointer}.wrong-types{display:grid;grid-template-columns:1fr 1fr;gap:9px}.wrong-types button,.wrong-sub,.wrong-custom button{border:1px solid #d9e0ef;border-radius:12px;background:#fff;color:#33415f;padding:10px;cursor:pointer;font-weight:700}.wrong-types button:hover,.wrong-sub.active{border-color:#ff8066;background:#fff2ee;color:#d94e35}.wrong-subs{margin:0 0 14px}.wrong-subs p{margin:0 0 8px;color:#66738e;font-size:13px}.wrong-subs>div{display:flex;gap:7px;flex-wrap:wrap}.wrong-sub{padding:7px 11px}.wrong-custom{display:flex;gap:8px;margin-top:12px}.wrong-custom input{min-width:0;flex:1;border:1px solid #d9e0ef;border-radius:12px;padding:10px 12px;outline:none}.wrong-custom input:focus{border-color:#7387df}.wrong-custom button{background:#334eb0;color:#fff}.wrong-save-state{min-height:20px;margin:10px 0 0;color:#2f8a68;font-size:12px}.wrong-toast{position:fixed;left:50%;bottom:28px;z-index:1300;transform:translate(-50%,90px);padding:10px 18px;border-radius:14px;background:#15213e;color:#fff;box-shadow:0 14px 34px rgba(21,33,62,.28);font-family:"Microsoft YaHei",sans-serif;transition:transform .25s}.wrong-toast.show{transform:translate(-50%,0)}