:root{
  --paper:#f4efe4;
  --paper-2:#faf7ef;
  --ink:#1f1c19;
  --ink-2:#4a443c;
  --ink-3:#8a8175;
  --cinnabar:#9c2b2b;
  --line:#ddd4c2;
  --gold:#a8843c;
}

*{box-sizing:border-box;margin:0;padding:0}

body{
  background:var(--paper);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.7), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(200,185,155,.25), transparent 50%);
  color:var(--ink);
  font-family:"Songti SC","STSong","SimSun","Noto Serif CJK SC",serif;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding:0 0 4rem;
}

.paper{max-width:920px;margin:0 auto;padding:2.5rem 1.5rem 0}

/* ---------- 抬头 ---------- */
.masthead{text-align:center;padding:1rem 0 2rem;position:relative}

.seal{
  width:52px;height:52px;margin:0 auto 1rem;
  background:var(--cinnabar);color:#fff;
  font-size:1.6rem;line-height:52px;border-radius:6px;
  box-shadow:0 2px 10px rgba(156,43,43,.3);
  letter-spacing:0;
}

h1{font-size:2rem;font-weight:500;letter-spacing:.22em;margin-bottom:.35rem}

.sub{color:var(--ink-3);font-size:.9rem;letter-spacing:.5em;margin-bottom:1.4rem}

.progress-wrap{max-width:340px;margin:0 auto}
.progress-bar{height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.progress-bar span{display:block;height:100%;background:var(--cinnabar);width:0;transition:width .8s ease}
.progress-text{font-size:.75rem;color:var(--ink-3);margin-top:.5rem;letter-spacing:.1em}

/* ---------- 工具条 ---------- */
.toolbar{margin-bottom:1.8rem}

#search{
  width:100%;padding:.9rem 1.1rem;
  border:1px solid var(--line);border-radius:4px;
  background:var(--paper-2);color:var(--ink);
  font-family:inherit;font-size:1rem;
  outline:none;transition:border-color .2s,box-shadow .2s;
}
#search:focus{border-color:var(--cinnabar);box-shadow:0 0 0 3px rgba(156,43,43,.08)}
#search::placeholder{color:var(--ink-3)}

.filters{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.8rem}

.chip{
  padding:.28rem .8rem;border:1px solid var(--line);border-radius:99px;
  background:transparent;color:var(--ink-2);
  font-family:inherit;font-size:.8rem;cursor:pointer;transition:all .18s;
}
.chip:hover{border-color:var(--ink-3)}
.chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- 章节网格 ---------- */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(150px,1fr));
  gap:.85rem;
}

.card{
  position:relative;
  padding:1rem 1rem .85rem;
  border:1px solid var(--line);border-radius:5px;
  background:var(--paper-2);
  cursor:pointer;transition:all .2s;
  min-height:104px;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(60,45,20,.09);border-color:var(--gold)}

.card .num{
  font-size:.72rem;color:var(--cinnabar);letter-spacing:.12em;margin-bottom:.3rem;
  display:flex;justify-content:space-between;align-items:center;
}
.card .num .dot{width:5px;height:5px;border-radius:50%;background:var(--line);flex:0 0 auto}
.card.done .num .dot{background:var(--cinnabar)}

.card .title{font-size:1.05rem;margin-bottom:.4rem;letter-spacing:.1em}

.card .excerpt{
  font-size:.76rem;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

.card .tags{margin-top:auto;padding-top:.5rem;display:flex;gap:.3rem;flex-wrap:wrap}
.card .tag{font-size:.65rem;color:var(--gold);border:1px solid rgba(168,132,60,.35);border-radius:3px;padding:0 .3rem}

.empty{text-align:center;color:var(--ink-3);padding:3rem 0}

/* ---------- 详情 ---------- */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:2rem 1rem;overflow-y:auto}
.modal[hidden]{display:none}
.modal-bg{position:fixed;inset:0;background:rgba(30,25,18,.55);backdrop-filter:blur(2px)}

.sheet{
  position:relative;z-index:1;
  width:100%;max-width:720px;
  background:var(--paper-2);
  border-radius:6px;
  padding:2.5rem 2rem 3rem;
  box-shadow:0 20px 60px rgba(0,0,0,.28);
  animation:rise .28s ease;
}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.close{
  position:absolute;top:.7rem;right:1rem;
  background:none;border:none;font-size:1.8rem;color:var(--ink-3);
  cursor:pointer;line-height:1;padding:.2rem .5rem;
}
.close:hover{color:var(--cinnabar)}

.d-head{text-align:center;padding-bottom:1.4rem;border-bottom:1px solid var(--line);margin-bottom:1.6rem}
.d-num{font-size:.78rem;color:var(--cinnabar);letter-spacing:.2em}
.d-title{font-size:1.4rem;margin:.3rem 0 1rem;letter-spacing:.15em;font-weight:500}
.d-original{
  font-size:1.02rem;line-height:2.1;color:var(--ink-2);
  text-align:justify;letter-spacing:.04em;
}

.d-tags{display:flex;gap:.4rem;justify-content:center;flex-wrap:wrap;margin-top:1rem}
.d-tags span{font-size:.7rem;color:var(--gold);border:1px solid rgba(168,132,60,.35);border-radius:3px;padding:.05rem .5rem}

.sec{margin-bottom:1.8rem}
.sec h3{
  font-size:.95rem;font-weight:500;letter-spacing:.18em;
  color:var(--cinnabar);margin-bottom:.7rem;
  display:flex;align-items:center;gap:.6rem;
}
.sec h3::before{content:'';width:16px;height:1px;background:var(--cinnabar)}
.sec h3 em{font-style:normal;font-size:.68rem;color:var(--ink-3);letter-spacing:.1em}

.sec .body{font-size:.95rem;line-height:2;color:var(--ink-2);text-align:justify}
.sec .body p{margin-bottom:.7rem}
.sec .body ul{margin:.5rem 0 .8rem 1.2rem}
.sec .body li{margin-bottom:.45rem;line-height:1.95}
.sec .body strong{color:var(--ink);font-weight:600}

.pending{
  background:rgba(168,132,60,.07);border-left:2px solid var(--gold);
  padding:1rem 1.2rem;font-size:.85rem;color:var(--ink-3);line-height:1.9;
}

.d-foot{margin-top:2rem;padding-top:1.2rem;border-top:1px solid var(--line);font-size:.74rem;color:var(--ink-3);text-align:center}

.foot{text-align:center;color:var(--ink-3);font-size:.76rem;padding:3rem 0 1rem;letter-spacing:.15em}

@media(max-width:600px){
  .paper{padding:1.5rem 1rem 0}
  h1{font-size:1.6rem}
  .sheet{padding:2rem 1.2rem 2.5rem}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.6rem}
}