:root{
  --bg:#0b0c10;
  --card:#121318;
  --muted:#9aa3b2;
  --text:#e8edf7;
  --line:#23263a;
  --accent:#4f7cff;
  --accent2:#25c2a0;
  --danger:#ff5470;
  --shadow: 0 10px 25px rgba(0,0,0,.35);
  --radius:16px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:linear-gradient(180deg,#080910,#0b0c10 40%, #07080d);
  color:var(--text);
  font-family:var(--sans);
}

body.modal-open{
  overflow:hidden;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--line);
  background: rgba(8,9,16,.88);
  backdrop-filter: blur(14px);
}

.topbar-main{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  padding: 12px 18px;
}

.topbar-left{
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark{
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  flex: none;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .6px;
  color: #fff;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.35), transparent 35%),
    linear-gradient(135deg, rgba(79,124,255,.95), rgba(37,194,160,.9));
  box-shadow: 0 10px 24px rgba(79,124,255,.2);
}

.h1{
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-right{
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.top-icon-btn{
  height: 46px;
  min-width: 46px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.top-icon-btn:hover{
  transform: translateY(-1px);
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  box-shadow: 0 10px 22px rgba(0,0,0,.22);
}

.top-icon-btn svg{
  width: 18px;
  height: 18px;
  flex: none;
}

.coffee-btn{
  background: linear-gradient(180deg, rgba(255,166,77,.18), rgba(255,140,66,.10));
  border-color: rgba(255,166,77,.28);
}

.status .badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  font-size:12px;
  color:var(--muted);
  white-space: nowrap;
}

.topbar-sub{
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 18px 10px;
  border-top: 1px solid rgba(255,255,255,.04);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
}

.api-label{
  flex: none;
}

.api-link{
  font-family: var(--mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mono{
  font-family:var(--mono);
}

.container{
  max-width:1100px;
  margin:18px auto;
  padding:0 14px 40px;
}

.card{
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(79,124,255,.08), transparent 45%),
    radial-gradient(900px 600px at 120% 0%, rgba(37,194,160,.06), transparent 38%),
    var(--card);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
  margin:14px 0;
}

.card h2{
  margin:0 0 10px 0;
  font-size:16px;
}

.row{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}

.row-between{
  justify-content:space-between;
}

.row-inline{
  display:flex;
  gap:10px;
  align-items:center;
}

.grid2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}

.grid3{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:12px;
}

.lab{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin:10px 0 6px;
}

.input,.textarea,select{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  background:#0d0f14;
  border:1px solid rgba(255,255,255,.10);
  color:var(--text);
  outline:none;
}

.textarea{
  resize:vertical;
  min-height:80px;
}

.input:focus,.textarea:focus,select:focus{
  border-color: rgba(79,124,255,.65);
  box-shadow: 0 0 0 3px rgba(79,124,255,.15);
}

.btn{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:#0d0f14;
  color:var(--text);
  cursor:pointer;
}

.btn:hover{
  border-color: rgba(255,255,255,.22);
}

.btn.primary{
  background: linear-gradient(180deg, rgba(79,124,255,.95), rgba(79,124,255,.7));
  border-color: rgba(79,124,255,.65);
}

.btn.danger{
  background: linear-gradient(180deg, rgba(255,84,112,.95), rgba(255,84,112,.7));
  border-color: rgba(255,84,112,.7);
}

.chk{
  display:flex;
  gap:8px;
  align-items:center;
  font-size:12px;
  color:var(--muted);
}

.chk input{
  transform: translateY(1px);
}

.hint{
  margin-top:10px;
  color:var(--muted);
  font-size:12px;
  line-height:1.45;
  border-left:3px solid rgba(79,124,255,.35);
  padding-left:10px;
}

.model-panel{
  display:none;
}

.output{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:12px;
}

.item{
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
  padding:12px;
  background:#0d0f14;
}

.item h3{
  margin:0 0 8px 0;
  font-size:14px;
}

.item .meta{
  font-size:12px;
  color:var(--muted);
  margin:6px 0;
}

.item img{
  max-width:100%;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
}

.item video{
  width:100%;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
}

.item pre{
  white-space:pre-wrap;
  word-break:break-word;
  background:#090a0f;
  border:1px solid rgba(255,255,255,.06);
  padding:10px;
  border-radius:12px;
  color:#cbd5e1;
  font-size:12px;
  max-height:260px;
  overflow:auto;
}

.footer{
  border-top:1px solid var(--line);
  padding:16px 18px;
  color:var(--muted);
  font-size:12px;
  background:rgba(8,9,16,.78);
  backdrop-filter: blur(10px);
}

/* ===== 赞助弹窗：默认隐藏 ===== */
.donate-modal{
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}

.donate-modal.show{
  display: block;
}

.donate-mask{
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(6px);
}

.donate-panel{
  position: relative;
  width: min(92vw, 420px);
  margin: 8vh auto 0;
  padding: 22px 22px 18px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  background:
    radial-gradient(900px 500px at 20% -10%, rgba(255,166,77,.1), transparent 40%),
    radial-gradient(700px 480px at 120% 0%, rgba(79,124,255,.1), transparent 34%),
    #121318;
  box-shadow: 0 28px 60px rgba(0,0,0,.4);
}

.donate-close{
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.donate-eyebrow{
  color:#ffb45c;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  margin-bottom:8px;
}

.donate-panel h3{
  margin:0 0 8px;
  font-size:24px;
}

.donate-text{
  margin:0 0 14px;
  color:var(--muted);
  font-size:14px;
  line-height:1.6;
}

.donate-image{
  display:block;
  width:100%;
  max-width:300px;
  margin:0 auto 16px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.08);
  background:#fff;
}

.donate-download{
  width:100%;
  justify-content:center;
  text-decoration:none;
  display:inline-flex;
}

@media (max-width: 880px){
  .grid2,.grid3{
    grid-template-columns:1fr;
  }

  .output{
    grid-template-columns:1fr;
  }

  .topbar-main{
    min-height: 64px;
    padding: 10px 14px;
    gap: 10px;
    align-items: center;
  }

  .brand-mark{
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .h1{
    font-size: 16px;
  }

  .topbar-right{
    gap: 8px;
    flex-wrap: nowrap;
  }

  .top-icon-btn{
    width: 42px;
    min-width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
  }

  .top-icon-btn span{
    display: none;
  }

  .status{
    display: flex;
    align-items: center;
  }

  .status .badge{
    padding: 6px 8px;
    font-size: 11px;
    max-width: 132px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .topbar-sub{
    min-height: 30px;
    padding: 0 14px 8px;
    font-size: 11px;
  }
}

@media (max-width: 520px){
  .topbar-main{
    min-height: 60px;
    padding: 10px 12px;
    gap: 8px;
  }

  .topbar-left{
    gap: 10px;
    min-width: 0;
  }

  .h1{
    font-size: 15px;
  }

  .topbar-right{
    gap: 6px;
  }

  .top-icon-btn{
    width: 40px;
    min-width: 40px;
    height: 40px;
  }

  .status .badge{
    max-width: 104px;
    padding: 5px 7px;
    font-size: 10px;
  }

  .topbar-sub{
    padding: 0 12px 8px;
    font-size: 10px;
  }
}