:root {
  --bg: #0f1117;
  --card: #171a23;
  --border: #262b38;
  --text: #e6e9f0;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.14);
  --green: #34c98a;
  --green-soft: rgba(52, 201, 138, 0.14);
  --red: #ff5c6c;
  --red-soft: rgba(255, 92, 108, 0.14);
  --amber: #f5b64c;
  --amber-soft: rgba(245, 182, 76, 0.14);
}

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

.hidden { display: none !important; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

.container { max-width: 860px; margin: 0 auto; padding: 0 16px; }

.topbar {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(79,140,255,0.06), transparent);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 22px 16px; flex-wrap: wrap; gap: 12px; }
.brand h1 { font-size: 22px; font-weight: 700; }
.brand p { color: var(--muted); margin-top: 2px; }

.status-pills { display: flex; gap: 8px; }
.pill {
  padding: 5px 12px; border-radius: 999px; font-size: 12px;
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
}
.pill.active { color: var(--green); border-color: rgba(52,201,138,0.4); background: var(--green-soft); }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; margin-top: 20px;
}
.notice-card {
  border-color: rgba(52,201,138,0.45);
  background: linear-gradient(180deg, rgba(52,201,138,0.08), var(--card));
}
.notice-content {
  white-space: pre-line; line-height: 1.7; font-size: 14px; color: var(--text);
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }
.card-head h2 { font-size: 16px; }
.hint { color: var(--muted); font-size: 12px; }

.field-row { display: flex; gap: 10px; margin-bottom: 12px; }
.field-row input[type="text"] {
  flex: 1; background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: 14px; outline: none;
}
.field-row input[type="text"]:focus { border-color: var(--accent); }
select {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 0 10px; outline: none; cursor: pointer;
}
.search-row input[type="text"] { flex: 0 1 300px; }

.btn {
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  border-radius: 8px; padding: 10px 18px; cursor: pointer; font-size: 14px;
  white-space: nowrap; transition: 0.15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.primary:disabled { opacity: 0.5; cursor: not-allowed; filter: none; }
.btn.ghost { padding: 10px 14px; }
.btn.small { padding: 5px 12px; font-size: 12px; border-radius: 6px; }
.btn.dl { background: var(--green); border-color: var(--green); color: #06120d; font-weight: 600; }
.btn.dl:hover { filter: brightness(1.1); color: #06120d; }

.search-results { display: flex; flex-direction: column; gap: 8px; }
.search-results.hidden { display: none; }
.result-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
}
.result-item .meta { overflow: hidden; }
.result-item .title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-item .sub { color: var(--muted); font-size: 12px; }
.result-item .book-id { font-size: 11px; color: var(--muted); opacity: 0.7; }

.msg { margin-top: 4px; font-size: 13px; min-height: 20px; }
.msg.ok { color: var(--green); }
.msg.err { color: var(--red); }

.task-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.task-col { min-width: 0; }
.task-col-title { font-size: 14px; color: var(--muted); font-weight: 600; margin-bottom: 10px; }

.task-list { display: flex; flex-direction: column; gap: 10px; }
.empty { color: var(--muted); text-align: center; padding: 30px 0; }

.task-item {
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
}
.task-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.task-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-title .book-id { color: var(--muted); font-weight: 400; font-size: 12px; margin-left: 6px; }
.task-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.badge {
  flex-shrink: 0; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 500;
}
.badge.queued { color: var(--amber); background: var(--amber-soft); border: 1px solid rgba(245,182,76,0.35); }
.badge.running { color: var(--accent); background: var(--accent-soft); border: 1px solid rgba(79,140,255,0.35); }
.badge.done { color: var(--green); background: var(--green-soft); border: 1px solid rgba(52,201,138,0.35); }
.badge.failed, .badge.canceled { color: var(--red); background: var(--red-soft); border: 1px solid rgba(255,92,108,0.35); }

.progress-wrap { margin-top: 10px; }
.progress-bar {
  height: 6px; background: var(--border); border-radius: 3px; overflow: hidden;
}
.progress-fill {
  height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.6s ease;
}
.progress-label { font-size: 12px; color: var(--muted); margin-top: 4px; }

.task-error { color: var(--red); font-size: 12px; margin-top: 8px; word-break: break-all; }
.task-actions { margin-top: 10px; display: flex; gap: 8px; align-items: center; }
.expired-tip { color: var(--muted); font-size: 12px; }
.task-user { color: var(--muted); font-size: 12px; margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border); }

.footer { color: var(--muted); font-size: 12px; text-align: center; padding: 24px 16px 96px; }
.footer #site-owner { white-space: pre-line; }
.footer-links { margin-top: 6px; }
.footer-links a { color: var(--accent); text-decoration: none; }
.footer-links a:active { opacity: 0.7; }

body.maintenance .topbar,
body.maintenance main,
body.maintenance .footer {
  display: none !important;
}

.maintenance-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.maintenance-box { text-align: center; max-width: 420px; }
.maintenance-box h1 { font-size: 24px; font-weight: 700; }
.maintenance-box p { color: var(--muted); font-size: 15px; margin: 12px 0 24px; }

.topbar-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.user-area { display: flex; align-items: center; gap: 8px; }
.user-info { color: var(--muted); font-size: 13px; }

.muted { color: var(--muted); }

.modal {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
  display: flex; align-items: center; justify-content: center; z-index: 100;
  padding: 16px;
}
.modal.hidden { display: none; }
.modal-box {
  width: 340px; max-width: 100%; position: relative;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 22px; display: flex; flex-direction: column; gap: 12px;
}
.modal-close {
  position: absolute; top: 10px; right: 10px; width: 28px; height: 28px;
  border: none; background: transparent; color: var(--muted); font-size: 20px;
  line-height: 1; cursor: pointer; border-radius: 6px; z-index: 1;
}
.modal-close:hover { color: var(--text); background: var(--border); }
.modal-box h2 { font-size: 18px; }
.modal-box h3 { font-size: 13px; color: var(--muted); margin-top: 8px; }
.modal-box input {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: 14px; outline: none;
}
.modal-box input:focus { border-color: var(--accent); }
.modal-box .msg { min-height: 0; margin: 0; }
.agree-row {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin: 12px 0 4px; font-size: 13px; color: var(--muted);
  cursor: pointer; user-select: none; -webkit-user-select: none;
}
.agree-row input[type="checkbox"] {
  width: 15px; height: 15px; margin: 0; flex: none;
  accent-color: var(--accent); cursor: pointer;
}
.agree-row span { text-align: left; line-height: 1.5; }
.agree-row a { color: var(--accent); text-decoration: none; }
.agree-row a:active { opacity: 0.7; }
.modal-foot { text-align: center; font-size: 13px; color: var(--muted); }
.modal-foot a { color: var(--accent); cursor: pointer; }
.disabled-tip { margin: 0; text-align: center; font-size: 14px; line-height: 1.7; }
#disabled-modal .btn { align-self: center; min-width: 120px; }

.btn.danger { background: var(--red); border-color: var(--red); color: #fff; font-weight: 600; }
.btn.danger:hover { filter: brightness(1.1); color: #fff; }
.btn.danger:disabled { opacity: 0.5; cursor: not-allowed; filter: none; }

.user-list { display: flex; flex-direction: column; gap: 8px; max-height: 260px; overflow-y: auto; }
.user-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px;
}
.user-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.admin-tag { color: var(--amber); font-style: normal; font-size: 11px; margin-left: 4px; }

@media (max-width: 640px) {
  .field-row { flex-direction: column; }
  .field-row input[type="text"] { flex: 1 1 auto; }
  .search-row input[type="text"] { flex: 1; }
  select { padding: 10px; }
  .task-columns { grid-template-columns: 1fr; }
}

/* ---------------- App 结构 ---------------- */

.app-main {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px 100px;
}

.app-page { display: none; }
.app-page.active { display: block; }

.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--card);
  border-top: 1px solid var(--border);
  z-index: 50;
}
.tab-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 9px 0 8px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); }
.tab-btn svg {
  width: 22px; height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.maintenance .tabbar {
  display: none !important;
}

/* TXT 预览正文 */
.txt-body {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.95;
  font-size: 17px;
}

.search-box-row {
  position: relative;
  display: flex;
  align-items: center;
  margin: 18px 0 6px;
}
.search-box-row input[type="text"] {
  flex: 1;
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 13px 44px 13px 16px;
  font-size: 16px;
  outline: none;
  transition: border-color 0.15s;
}
.search-box-row input[type="text"]:focus { border-color: var(--accent); }
.search-clear {
  position: absolute;
  right: 8px;
  width: 28px; height: 28px;
  border: none;
  background: var(--bg);
  color: var(--muted);
  border-radius: 50%;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
}
.search-clear:hover { color: var(--text); background: var(--border); }

.welcome-box { padding: 30px 4px 14px; }
.welcome-greet {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.5px;
}
.welcome-box .btn { margin-top: 14px; }
#page-download .download-tabs { margin-top: 12px; }

.download-tabs {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 18px 0 14px;
}
.download-tab {
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  transition: 0.15s;
}
.download-tab:hover { color: var(--text); border-color: var(--accent); }
.download-tab.active {
  color: var(--accent);
  border-color: rgba(79, 140, 255, 0.45);
  background: var(--accent-soft);
}
#page-download .task-list { margin-top: 0; }
#page-download .list-hint { margin-left: auto; }

/* 我的区 */

#page-mine { padding-top: 30px; }
#mine-login-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 60px 20px;
}
.mine-tip { color: var(--muted); font-size: 16px; }
.mine-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 50px 20px;
}
.mine-user .user-info { font-size: 18px; color: var(--text); font-weight: 600; }
.mine-info .btn { min-width: 160px; }

/* 关于本站 */

.about-body { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.about-icon { width: 72px; height: 72px; border-radius: 16px; }
.about-title { font-size: 18px; margin: 2px 0 4px; }
.about-row { display: flex; justify-content: space-between; width: 100%; font-size: 14px; padding: 2px 0; }
.about-label { color: var(--muted); }
.about-value { color: var(--text); }

/* 格式选择对话框 */

.format-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.format-opt {
  width: 100%;
  text-align: center;
  padding: 12px;
  font-size: 15px;
}
.format-opt:hover { border-color: var(--accent); color: var(--accent); }
#format-modal .modal-box { width: 300px; }
#format-book-sub {
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#format-modal .msg { min-height: 0; margin: 0; }

/* 搜索结果行带下载按钮 */
.result-item .btn.small { min-width: 76px; }
.result-item .btn.preview {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.result-item .btn.preview:hover { filter: brightness(1.1); color: #fff; }
.result-item .btn.preview:disabled { opacity: 0.6; cursor: not-allowed; }

/* 日夜模式切换按钮 */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 20px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 日间模式变量覆盖 */
body.day-mode {
  --bg: #f5f5f0;
  --card: #ffffff;
  --border: #e0e0e0;
  --text: #333333;
  --muted: #666666;
  --accent-soft: rgba(79, 140, 255, 0.1);
  --green-soft: rgba(52, 201, 138, 0.1);
  --red-soft: rgba(255, 92, 108, 0.1);
  --amber-soft: rgba(245, 182, 76, 0.1);
}
body.day-mode .topbar {
  background: rgba(245,245,240,0.95);
  backdrop-filter: blur(10px);
}
body.day-mode .search-box-row input {
  background: #fff;
  color: #333;
  border-color: #ddd;
}
body.day-mode .card {
  background: #fff;
  border-color: #e0e0e0;
}
body.day-mode .pill {
  background: rgba(0,0,0,0.04);
  border-color: #ddd;
  color: #666;
}
body.day-mode .btn {
  background: #fff;
  color: #333;
  border-color: #ddd;
}
body.day-mode .btn.primary {
  background: var(--accent);
  color: #fff;
}
body.day-mode .tab-btn {
  color: #666;
}
body.day-mode .tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}


/* 书架页面 */
#bookshelf-list { margin-top: 12px; }
#bookshelf-list .empty { color: var(--muted); text-align: center; padding: 40px 0; }
#bookshelf-list .empty.hidden { display: none; }
#shelf-count { color: var(--muted); font-size: 14px; margin: 4px 0 12px; }
.btn-row { display: flex; gap: 8px; margin-top: 8px; }
.btn.danger { background: transparent; color: #e74c3c; border-color: #e74c3c; }
.btn.shelf { color: var(--accent); border-color: var(--accent); }
.btn.shelf:disabled { opacity: 0.6; }

/* 日间模式 */
[data-theme="light"] {
  --bg: #f5f6fa;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2430;
  --muted: #6b7280;
  --accent-soft: rgba(79, 140, 255, 0.1);
  --green-soft: rgba(52, 201, 138, 0.1);
  --red-soft: rgba(255, 92, 108, 0.1);
  --amber-soft: rgba(245, 182, 76, 0.1);
}

[data-theme="light"] .topbar {
  background: linear-gradient(180deg, rgba(79,140,255,0.04), transparent);
}

[data-theme="light"] .modal {
  background: rgba(0, 0, 0, 0.4);
}

/* 维护模式 */
.maintenance-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  padding: 20px;
}
.maintenance-box {
  text-align: center;
  max-width: 400px;
}
.maintenance-box h2 {
  font-size: 28px;
  margin-bottom: 16px;
  color: var(--text);
}
.maintenance-box p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 8px;
  line-height: 1.6;
}
.maintenance-notice {
  font-size: 14px !important;
  margin-bottom: 24px !important;
}