/* 浅形案例图库 · 骨白底色 / 黑字 / 细线网格 / 方角 */
:root {
  --bg: #FAF9F6;
  --card: #FFFFFF;
  --ink: #141414;
  --muted: #6E6A62;
  --line: rgba(20, 20, 20, 0.16);
  --line-strong: #141414;
  --danger: #A32D2D;
  --radius: 2px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); }
body {
  font: 14px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
button { font: inherit; cursor: pointer; }
img { display: block; }

/* ---------- 按钮 ---------- */
.btn {
  border: 1px solid var(--line-strong); background: transparent; color: var(--ink);
  padding: 7px 16px; border-radius: var(--radius); font-size: 13px; letter-spacing: 0.05em;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.72; }
.btn-dark { background: var(--ink); color: var(--bg); }
.btn-ghost { border-color: var(--line); }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; padding-top: max(24px, env(safe-area-inset-top)); padding-bottom: max(24px, env(safe-area-inset-bottom)); }
.login-card {
  width: 100%; max-width: 360px; background: var(--card);
  border: 1px solid var(--line-strong); padding: 40px 36px 28px;
}
.brand { text-align: center; margin-bottom: 30px; }
.brand-mark { font-size: 22px; font-weight: 700; letter-spacing: 0.34em; text-indent: 0.34em; }
.brand-sub { font-size: 11px; color: var(--muted); letter-spacing: 0.22em; margin-top: 8px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; letter-spacing: 0.1em; }
.field input {
  width: 100%; border: none; border-bottom: 1px solid var(--line-strong);
  background: transparent; padding: 8px 2px; font-size: 15px; outline: none; border-radius: 0;
}
.field input:focus { border-bottom-width: 2px; }
.login-err { color: var(--danger); font-size: 12px; min-height: 18px; margin-bottom: 8px; }
.login-tip { font-size: 11px; color: var(--muted); margin-top: 20px; text-align: center; line-height: 1.8; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; border-bottom: 1px solid var(--line-strong);
  background: var(--bg); position: sticky; top: 0; z-index: 20;
}
.topbar-left { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 24px; width: auto; display: block; }
.logo { font-size: 16px; font-weight: 700; letter-spacing: 0.12em; }
.logo-en { font-size: 10px; color: var(--muted); letter-spacing: 0.3em; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.whoami { font-size: 12px; color: var(--muted); margin-left: 6px; }

/* ---------- 筛选区 ---------- */
.filter-bar { padding: 16px 28px 8px; border-bottom: 1px solid var(--line); }
.tag-row { display: flex; align-items: flex-start; gap: 14px; padding: 7px 0; }
.tag-row-label {
  flex: 0 0 44px; font-size: 12px; color: var(--muted); letter-spacing: 0.2em;
  padding-top: 6px; text-align: justify; text-align-last: justify;
}
.tag-row-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line-strong); background: transparent; color: var(--ink);
  padding: 3px 14px; font-size: 12.5px; border-radius: var(--radius); line-height: 1.6;
}
.chip.on { background: var(--ink); color: var(--bg); }
.filter-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 8px 0 6px; }

/* ---------- 常用组合 ---------- */
.saved-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 10px 28px; border-bottom: 1px solid var(--line);
}
.saved-label { font-size: 11px; color: var(--muted); letter-spacing: 0.2em; }
.saved-list { display: flex; flex-wrap: wrap; gap: 8px; }
.saved-chip {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px dashed var(--line-strong); padding: 3px 8px 3px 14px; font-size: 12px; border-radius: var(--radius);
}
.saved-chip .x { color: var(--muted); font-size: 13px; padding: 0 4px; }
.saved-chip .x:hover { color: var(--danger); }

/* ---------- 结果条 ---------- */
.result-bar {
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
  padding: 14px 28px 4px;
}
.result-count { font-size: 13px; font-weight: 600; letter-spacing: 0.04em; }
.result-hint { font-size: 12px; color: var(--muted); }

/* ---------- 图墙 ---------- */
.gallery {
  display: flex; align-items: flex-start; gap: 18px;
  padding: 14px 28px 60px;
}
.masonry-col {
  flex: 1 1 0; min-width: 0;
  display: flex; flex-direction: column; gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line); cursor: pointer; position: relative;
}
.card:hover { border-color: var(--line-strong); }
.card img { width: 100%; }
.card-tags { display: flex; flex-wrap: wrap; gap: 5px; padding: 9px 10px 10px; }
.mini-tag {
  font-size: 10.5px; color: var(--muted); border: 1px solid var(--line);
  padding: 1px 7px; border-radius: var(--radius); letter-spacing: 0.03em;
}
.mini-tag.hit { color: var(--bg); background: var(--ink); border-color: var(--ink); }
.hit-badge {
  position: absolute; top: 8px; left: 8px; background: var(--ink); color: var(--bg);
  font-size: 11px; padding: 2px 9px; border-radius: var(--radius); letter-spacing: 0.06em;
}
.hit-badge.full { background: var(--danger); }
.empty {
  text-align: center; color: var(--muted); padding: 80px 20px; font-size: 15px; line-height: 2.2;
}
.empty span { font-size: 12px; }
.load-more {
  display: flex; justify-content: center; padding: 4px 16px 56px;
}
.load-more .btn { min-width: 180px; }
@media (max-width: 420px) {
  .load-more .btn { width: 100%; }
}

/* ---------- 弹层 ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal-mask { position: absolute; inset: 0; background: rgba(20, 20, 20, 0.5); }
.modal-card {
  position: relative; background: var(--card); border: 1px solid var(--line-strong);
  width: min(560px, calc(100vw - 32px)); max-height: calc(100vh - 48px); display: flex; flex-direction: column;
}
.modal-wide { width: min(860px, calc(100vw - 32px)); }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line-strong); font-weight: 600; letter-spacing: 0.08em;
}
.modal-x { background: none; border: none; font-size: 22px; line-height: 1; color: var(--muted); }
.modal-x:hover { color: var(--ink); }
.modal-body { padding: 20px; overflow-y: auto; }
.ui-dialog-msg { font-size: 14px; line-height: 1.6; color: var(--ink); margin-bottom: 14px; }
.ui-dialog-input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line-strong); background: var(--bg);
  font-size: 14px; color: var(--ink); border-radius: 0; outline: none;
}
.ui-dialog-input:focus { border-color: var(--ink); }
.ui-dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

/* 大图弹层 */
.lightbox-body {
  position: relative; display: flex; width: min(1180px, calc(100vw - 32px));
  height: min(760px, calc(100vh - 32px)); background: var(--card); border: 1px solid var(--line-strong);
}
.lightbox-img-wrap { flex: 1; min-width: 0; display: flex; align-items: center; justify-content: center; background: #F1EFE9; padding: 16px; }
.lightbox-img-wrap img { max-width: 100%; max-height: 100%; object-fit: contain; }
.lightbox-side {
  flex: 0 0 340px; display: flex; flex-direction: column; border-left: 1px solid var(--line); overflow-y: auto;
}
.lightbox-title { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.lb-meta { font-size: 12px; color: var(--muted); }
.lb-section { padding: 16px; }
.lb-section-title { font-size: 12px; color: var(--muted); letter-spacing: 0.15em; margin-bottom: 12px; }
.lb-tag-editor .tag-row { padding: 5px 0; }
.lb-actions { margin-top: auto; display: flex; flex-wrap: nowrap; gap: 6px; border-top: 1px solid var(--line); }
.lb-actions > .btn, .lb-actions > a.btn {
  flex: 1 1 0; min-width: 0; padding: 8px 6px; font-size: 12.5px; line-height: 1.3;
  text-align: center; white-space: nowrap;
}

/* 上传 */
.dropzone {
  border: 1px dashed var(--line-strong); padding: 44px 20px; text-align: center; cursor: pointer;
}
.dropzone.dragover { background: #F1EFE9; }
.dz-title { font-size: 15px; font-weight: 600; letter-spacing: 0.08em; }
.dz-sub { font-size: 12px; color: var(--muted); margin-top: 8px; }
#fileInput { display: none; }
.upload-status { padding: 14px 4px; font-size: 13px; }
.upload-status .ok { color: #0F6E56; }
.upload-status .err { color: var(--danger); }
.batch-panel { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 8px; }
.batch-panel .lb-tag-editor { max-height: 300px; overflow-y: auto; }
.batch-preview { display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 8px; margin: 12px 0 4px; }
.batch-thumb { position: relative; aspect-ratio: 1 / 1; background: var(--paper-2, #F5F3EE); border: 1px solid var(--line); overflow: hidden; }
.batch-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 管理 */
.admin-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line-strong); margin-bottom: 18px; }
.admin-tab {
  background: none; border: none; padding: 8px 18px; font-size: 13px; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px; letter-spacing: 0.06em;
}
.admin-tab.active { color: var(--ink); border-bottom-color: var(--ink); font-weight: 600; }
.admin-dim { margin-bottom: 18px; }
.admin-dim-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.admin-dim-title { font-size: 12px; color: var(--muted); letter-spacing: 0.15em; }
.admin-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.admin-chip {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--line); padding: 3px 8px 3px 12px; font-size: 12.5px; border-radius: var(--radius);
}
.admin-chip .x { color: var(--muted); }
.admin-chip .x:hover { color: var(--danger); }
.admin-add-row { display: flex; gap: 8px; flex-wrap: wrap; }
.admin-add-row input, .admin-add-row select {
  border: 1px solid var(--line); background: transparent; padding: 5px 10px; font-size: 13px; border-radius: var(--radius); outline: none;
  flex: 1 1 160px; min-width: 0;
}
.admin-add-row input:focus, .admin-add-row select:focus { border-color: var(--line-strong); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.actions-cell { display: flex; gap: 6px; flex-wrap: wrap; }
.admin-table th, .admin-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.admin-table th { font-size: 11px; color: var(--muted); letter-spacing: 0.12em; font-weight: 500; }
.log-line { padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 12.5px; display: flex; gap: 12px; }
.log-time { color: var(--muted); flex: 0 0 150px; font-size: 12px; }

/* toast */
#toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--bg); padding: 9px 22px; font-size: 13px;
  border-radius: var(--radius); z-index: 200; letter-spacing: 0.05em;
  opacity: 0; transition: opacity 0.2s; pointer-events: none;
}
#toast.show { opacity: 1; }

/* ---------- 响应式：平板 / 手机 ---------- */
/* 手机大图右上角浮层关闭键：桌面隐藏 */
.lb-close-mobile { display: none; }

/* 平板 iPad（768~1024）：主力查看设备，单独适配 */
@media (max-width: 1024px) {
  .topbar { padding: 12px 20px; }
  .filter-bar { padding: 14px 20px 8px; }
  .result-bar { padding: 12px 20px 4px; }
  .saved-bar { padding: 10px 20px; }
  .gallery { padding: 14px 20px 56px; gap: 14px; }
  /* 触摸目标适度放大，避免误触，但保持与页面协调 */
  .chip { padding: 4px 14px; font-size: 13px; line-height: 1.5; min-height: 32px; }
  .btn { padding: 7px 16px; font-size: 13px; min-height: 34px; }
  .btn-sm { padding: 4px 12px; min-height: 30px; }
  .admin-table th, .admin-table td { padding: 10px 8px; }
  /* 筛选 chip 行改为可横向滑动，不堆满整屏 */
  .tag-row { flex-direction: column; gap: 6px; }
  .tag-row-label { flex-basis: auto; }
  .tag-row-chips { flex-wrap: wrap; gap: 6px; }
}
/* iPad 横屏列数由 JS 按宽度计算（galleryColumns） */

/* 手机（≤720）：图墙最大化 + 安全区（筛选区保持常显，不折叠） */
@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; gap: 8px; padding-top: calc(12px + env(safe-area-inset-top)); }
  .topbar-right { flex-wrap: wrap; }
  .result-bar { padding: 10px 12px 2px; }
  .saved-bar { padding: 10px 12px; }
  .gallery { padding: 10px 12px 48px; gap: 10px; }
  /* 团队成员表：手机转卡片列表，避免多列挤压溢出 */
  .admin-table thead { display: none; }
  .admin-table, .admin-table tbody, .admin-table tr, .admin-table td { display: block; width: 100%; }
  .admin-table tr { border: 1px solid var(--line); margin-bottom: 12px; padding: 2px 0; }
  .admin-table td { border: none; padding: 9px 12px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
  .admin-table td::before { content: attr(data-label); color: var(--muted); font-size: 12px; flex: 0 0 auto; }
  .admin-table td.actions-cell { justify-content: flex-end; flex-wrap: wrap; }
  .admin-table td.actions-cell::before { flex: 0 0 100%; margin-bottom: 6px; }
  /* 新增标签 / 新增成员表单：手机纵向堆叠，所有控件占满整行（覆盖行内 flex:1） */
  .admin-add-row { flex-wrap: wrap; gap: 8px; }
  .admin-add-row input, .admin-add-row select, .admin-add-row button { flex: 1 1 100% !important; }
  /* 操作日志：手机改为「时间在上、内容在下」堆叠，避免固定时间列挤压正文 */
  .log-line { flex-direction: column; align-items: flex-start; gap: 2px; }
  .log-time { flex: 0 0 auto; }
  /* 大图查看器：图片撑满屏高，标签区下滑 */
  .lightbox-body {
    flex-direction: column; width: calc(100vw - 12px);
    height: calc(100vh - 12px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  }
  .lightbox-img-wrap { flex: 1; min-height: 0; padding: 10px; position: relative; }
  .lightbox-side { flex: 0 0 auto; max-height: 46vh; border-left: none; border-top: 1px solid var(--line); }
  /* 大图操作按钮：手机改为 2×2 排布，避免一行四按钮临界点溢出 */
  .lb-actions { flex-wrap: wrap; }
  .lb-actions > .btn, .lb-actions > a.btn { flex: 1 1 44%; white-space: nowrap; }
  .lb-close-mobile {
    display: block; position: absolute; top: 10px; right: 10px; width: 40px; height: 40px; z-index: 5;
    border: none; border-radius: 50%; background: rgba(20, 20, 20, 0.55); color: #fff; font-size: 24px; line-height: 1;
  }
  .modal-card { width: calc(100vw - 16px); }
  .batch-preview { grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); }
}
/* 小屏手机：2 列等比例缩小（不再单列放大） */
@media (max-width: 420px) {
  .gallery { gap: 8px; }
  /* 极窄屏：英文副标题字号兜底缩小，避免与标题挤（不再隐藏） */
  .topbar-left .logo-en { font-size: 9px; letter-spacing: 0.22em; }
  /* 管理 Tab 收窄，避免三个标签临界溢出 */
  .admin-tabs { gap: 0; }
  .admin-tab { padding: 8px 12px; font-size: 12.5px; }
  /* 顶栏按钮在极窄屏也允许换行，不挤压 */
  .topbar-right { width: 100%; justify-content: flex-start; }
}
/* 横屏手机：顶部状态条压缩，留出更多图墙高度 */
@media (max-height: 480px) and (orientation: landscape) {
  .lightbox-side { max-height: 60vh; }
}