:root {
  --bg: #0d1117;
  --bg-soft: #131a23;
  --card: #161d27;
  --card-hover: #1a2330;
  --border: #263140;
  --border-strong: #33445c;
  --text: #e8edf4;
  --muted: #8b96a5;
  --accent: #4da3ff;
  --accent-2: #7c6cff;
  --accent-grad: linear-gradient(135deg, #4da3ff, #7c6cff);
  --ok: #3fd08a;
  --warn: #e8b03f;
  --bad: #f06a6a;
  --gray: #79828d;
  --radius: 12px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scrollbar-color: var(--border-strong) var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(124, 108, 255, 0.14), transparent 60%),
    radial-gradient(900px 460px at -10% 0%, rgba(77, 163, 255, 0.12), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 32px 18px 56px; }

/* ===== 头部 ===== */
header { text-align: center; margin-bottom: 28px; }
.logo {
  width: 58px; height: 58px;
  margin: 0 auto 12px;
  border-radius: 16px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 22px rgba(96, 130, 255, 0.35);
}
.logo svg { width: 30px; height: 30px; }
header h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: 1px;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
header .sub { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.platforms { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  padding: 3px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 12px;
}

/* ===== 卡片 ===== */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent 40%), var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--border-strong); }
.card h2 {
  margin: 0 0 16px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.step {
  flex: none;
  width: 24px; height: 24px;
  border-radius: 8px;
  background: var(--accent-grad);
  color: #fff;
  font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ===== 表单 ===== */
.field { display: block; margin-bottom: 12px; }
.field span { display: block; margin-bottom: 5px; color: var(--muted); font-size: 13px; }
.field code {
  background: #1e2733;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: #a8c7f0;
}
.field input[type="text"] {
  width: 100%;
  background: #0f151d;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.15);
}

/* 密钥说明下拉框 */
.key-help {
  margin: -4px 0 14px;
  padding: 10px 14px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 13px;
}
.key-help summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 500;
  user-select: none;
}
.key-help summary:hover { color: var(--accent-2); }
.key-help p { margin: 10px 0 4px; }
.key-help ul { margin: 4px 0 4px; padding-left: 20px; }
.key-help li { margin: 4px 0; }
.key-help code { background: #1e2733; padding: 1px 6px; border-radius: 4px; font-size: 12px; color: #a8c7f0; }
.key-help .key-tip { color: var(--warn); font-size: 12px; margin: 8px 0 0; }

/* 选择密钥文件按钮（与其它按钮同款） */
.field-file { display: inline-block; margin-bottom: 0; }
.file-btn {
  display: inline-block;
  background: var(--bg-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  transition: background 0.15s, transform 0.12s;
}
.file-btn:hover { background: #16202c; transform: translateY(-1px); }
.check {
  display: flex; align-items: center; gap: 8px;
  margin: 4px 0 16px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.check input { accent-color: var(--accent); width: 15px; height: 15px; }

button.primary {
  background: var(--accent-grad);
  color: #fff;
  font-weight: 600;
  border: 0;
  border-radius: 8px;
  padding: 10px 28px;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(96, 130, 255, 0.3);
  transition: transform 0.12s, box-shadow 0.12s, opacity 0.12s;
}
button.primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(96, 130, 255, 0.4); }
button.primary:disabled { opacity: 0.45; cursor: default; }

/* ===== 拖拽区 ===== */
.dropzone {
  position: relative;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 38px 24px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  background: var(--bg-soft);
  transition: border-color 0.18s, background 0.18s, transform 0.18s;
}
.dropzone:hover { border-color: var(--accent); background: #16202c; }
.dropzone.drag {
  border-color: var(--accent);
  background: rgba(77, 163, 255, 0.1);
  transform: scale(1.01);
}
.dropzone.drag::after {
  content: "松开即上传";
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 600;
  color: var(--accent);
  background: rgba(13, 17, 23, 0.72);
  border-radius: inherit;
}
.dropzone.busy { border-color: var(--gray); opacity: 0.65; cursor: default; }
.dropzone.busy:hover { border-color: var(--gray); background: var(--bg-soft); }
.dropzone .dz-icon { width: 44px; height: 44px; margin-bottom: 10px; color: var(--accent); }
.dropzone p { margin: 0 0 6px; color: var(--text); font-size: 15px; }
.dropzone p.hint { color: var(--muted); font-size: 12px; margin: 0; }
.dropzone .dz-exts { margin-top: 12px; font-size: 12px; color: var(--muted); }
.dropzone .dz-exts code {
  background: #1e2733; border-radius: 4px; padding: 1px 6px; margin: 0 2px;
  display: inline-block; margin-top: 4px;
}

/* 上传进度 */
.upload-queue { margin-top: 12px; font-size: 13px; color: var(--muted); }
.upload-queue .q-state { margin-bottom: 6px; }
.upload-queue .q-state.ok { color: var(--ok); }
.upload-queue .q-state.bad { color: var(--bad); }

/* ===== 通用进度条 ===== */
.progress {
  height: 8px;
  border-radius: 999px;
  background: #0f151d;
  border: 1px solid var(--border);
  overflow: hidden;
  margin: 8px 0;
}
.progress > div {
  height: 100%;
  width: 0%;
  background: var(--accent-grad);
  border-radius: inherit;
  transition: width 0.25s ease;
}

/* ===== 结果区 ===== */
.legend { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; font-size: 12px; color: var(--muted); }
.dot { display: inline-flex; align-items: center; }
.dot::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 5px;
}
.dot.done::before { background: var(--ok); }
.dot.skipped::before { background: var(--gray); }
.dot.missing-key::before { background: var(--warn); }
.dot.failed::before { background: var(--bad); }
.dot.unsupported::before { background: #555e68; }

.table-wrap { overflow-x: auto; border-radius: 8px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 12px; white-space: nowrap; }
tbody tr { transition: background 0.12s; }
tbody tr:hover { background: var(--card-hover); }
tr .status { white-space: nowrap; }
tr.st-done .status { color: var(--ok); }
tr.st-skipped .status { color: var(--gray); }
tr.st-missing-key .status { color: var(--warn); }
tr.st-failed .status { color: var(--bad); }
tr.st-unsupported .status { color: #555e68; }
tr.processing .status { color: var(--muted); }
td.detail { color: var(--muted); word-break: break-all; font-size: 13px; }

/* 处理中 spinner */
.spinner {
  display: inline-block;
  width: 11px; height: 11px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  vertical-align: -1px;
  margin-right: 6px;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.summary { margin-top: 14px; font-weight: 600; }
.summary p.hint { margin: 6px 0 0; color: var(--muted); font-weight: 400; font-size: 12px; }

.downloads { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.downloads .dl-title { color: var(--muted); font-size: 13px; margin: 0; }
.downloads .dl-btn {
  align-self: flex-start;
  background: var(--bg-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  transition: background 0.15s, transform 0.12s;
}
.downloads .dl-btn:hover { background: #16202c; transform: translateY(-1px); }
.downloads .dl-btn[hidden] { display: none; }
.downloads a {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-soft);
  transition: border-color 0.15s, background 0.15s;
  width: fit-content;
}
.downloads a:hover { border-color: var(--accent); background: #16202c; }

.hidden { display: none; }

/* ===== 页脚 ===== */
footer { color: var(--muted); font-size: 12px; line-height: 1.9; margin-top: 28px; text-align: center; }
footer p { margin: 0; }

@media (max-width: 560px) {
  .wrap { padding: 20px 12px 40px; }
  header h1 { font-size: 24px; }
  .card { padding: 16px; }
}