/* ============================================================
   管理后台样式 (PC 端)
   ============================================================ */

/* ---------- 布局 ---------- */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex: none;
  background: var(--gray-900);
  color: #e5e7eb;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  padding: 20px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.brand-icon {
  margin-right: 4px;
}
.nav {
  padding: 12px 10px;
  flex: 1;
}
.nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 8px;
  color: #d1d5db;
  font-size: 14px;
  transition: all 0.15s;
}
.nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}
.nav a.active {
  background: var(--primary);
  color: #fff;
}
.sidebar-foot {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.user {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  color: #e5e7eb;
}
.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex: none;
}
.sidebar .btn-ghost {
  color: #d1d5db;
}
.sidebar .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.main {
  flex: 1;
  min-width: 0;
  padding: 28px 32px;
  max-width: 1280px;
}

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #eef2f7 0%, #e0e7f1 100%);
  padding: 20px;
}
.login-card {
  background: #fff;
  border-radius: 18px;
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 50px rgba(16, 24, 40, 0.12);
  text-align: center;
}
.login-logo {
  font-size: 40px;
  margin-bottom: 8px;
}
.login-title {
  font-size: 22px;
  color: var(--gray-900);
}
.login-sub {
  color: var(--gray-500);
  margin: 8px 0 24px;
}
.login-form {
  text-align: left;
}

/* ---------- 页面头部 ---------- */
.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.page-head h2 {
  font-size: 22px;
  color: var(--gray-900);
}
.page-head .btn-ghost {
  margin-bottom: 4px;
}

/* ---------- 问卷列表 ---------- */
.q-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.q-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.q-card-main {
  flex: 1;
  min-width: 240px;
}
.q-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.q-card-meta {
  display: flex;
  gap: 16px;
  color: var(--gray-500);
  font-size: 13px;
  flex-wrap: wrap;
}
.q-link-row {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.q-link-row input {
  flex: 1;
  max-width: 420px;
  padding: 6px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  background: var(--gray-50);
  font-size: 13px;
  color: var(--gray-600);
}
.q-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-content: flex-start;
}

/* ---------- 编辑器 ---------- */
.editor-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.editor-title-input {
  flex: 1;
  min-width: 220px;
  font-size: 20px;
  font-weight: 600;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--gray-900);
}
.editor-title-input:hover {
  border-color: var(--gray-200);
  background: #fff;
}
.editor-title-input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
}

.editor-body {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 20px;
  align-items: start;
}
.editor-main {
  min-width: 0;
}
.editor-tools {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  align-items: center;
}
.editor-tools-label {
  color: var(--gray-500);
  font-size: 13px;
}
.questions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.question-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.qcard-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.q-index {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}
.q-type {
  font-size: 13px;
  color: var(--gray-500);
}
.qcard-tools {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.icon-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  background: #fff;
  color: var(--gray-600);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
}
.icon-btn:hover {
  background: var(--gray-100);
}
.icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.icon-btn-danger:hover {
  background: #fef2f2;
  color: var(--danger);
  border-color: #fecaca;
}
.q-title-input {
  width: 100%;
  font-size: 15px;
  font-weight: 600;
  padding: 8px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  margin-bottom: 8px;
}
.q-title-input:focus {
  outline: none;
  border-color: var(--primary);
}
.q-desc-input {
  width: 100%;
  font-size: 13px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--gray-600);
  margin-bottom: 10px;
}
.q-desc-input:hover,
.q-desc-input:focus {
  border-color: var(--gray-200);
  outline: none;
}
.q-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}
.option-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.option-bullet {
  color: var(--gray-400);
  font-size: 16px;
  width: 16px;
}
.option-input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 7px;
  font-size: 13px;
}
.option-input:focus {
  outline: none;
  border-color: var(--primary);
}
.q-note {
  font-size: 13px;
  color: var(--gray-500);
  background: var(--gray-50);
  border-radius: 8px;
  padding: 10px 12px;
}
.q-rules {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 10px;
  border-top: 1px dashed var(--gray-200);
}
.rule-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray-700);
}
.rule-num {
  width: 52px;
  padding: 4px 6px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  text-align: center;
}

/* ---------- 侧栏 ---------- */
.editor-side {
  position: sticky;
  top: 20px;
}
.side-section {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.side-section h3 {
  font-size: 15px;
  margin-bottom: 14px;
}
.side-sub {
  padding: 10px;
  border: 1px dashed var(--gray-200);
  border-radius: 8px;
  margin-bottom: 12px;
}
.prize-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}
.prize-row {
  display: flex;
  gap: 6px;
  align-items: center;
}
.prize-row input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  font-size: 13px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
}
.redeemer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}
.redeemer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  background: var(--gray-50);
  border-radius: 6px;
  font-size: 13px;
}
.redeemer-name {
  color: var(--gray-800);
}
.redeemer-add {
  display: flex;
  gap: 6px;
}
.redeemer-add input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  font-size: 13px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
}
.link-box input {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  background: var(--gray-50);
  font-size: 13px;
  margin: 6px 0 8px;
}

.theme-preview {
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gray-200);
}
.theme-preview-card {
  width: 100%;
  padding: 14px;
  box-shadow: var(--shadow-sm);
}
.theme-preview-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.theme-preview-desc {
  font-size: 12px;
  margin-bottom: 8px;
}
.theme-preview-q {
  font-size: 13px;
  margin-bottom: 10px;
}
.theme-preview-btn {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 6px;
  font-size: 13px;
}

/* ---------- 结果页 ---------- */
.stat-total {
  text-align: center;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 14px 26px;
  min-width: 110px;
}
.stat-total-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
}
.stat-total-label {
  font-size: 13px;
  color: var(--gray-500);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}
.text-answers {
  max-height: 260px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.text-answer-item {
  background: var(--gray-50);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--gray-700);
  word-break: break-word;
}
.upload-stat {
  font-size: 15px;
  color: var(--gray-700);
}
.detail-meta {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-200);
}
.detail-q {
  margin-bottom: 16px;
}
.detail-q-title {
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}
.detail-a {
  color: var(--gray-700);
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
}
.detail-file {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

/* ---------- 文件页 ---------- */
.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.file-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.file-thumb {
  height: 130px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  overflow: hidden;
}
.file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.file-info {
  padding: 12px;
}
.file-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-800);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 6px;
}
.file-meta {
  display: flex;
  gap: 10px;
  font-size: 12px;
  color: var(--gray-500);
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.file-actions {
  display: flex;
  gap: 8px;
}
.file-preview-body {
  text-align: center;
}
.file-preview-body img {
  max-width: 100%;
  border-radius: 8px;
}

/* ---------- 答卷列表 (结果页) ---------- */
.page-head-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.table-answers th,
.table-answers td {
  max-width: 260px;
  vertical-align: top;
  word-break: break-word;
}
.table-answers th {
  white-space: normal;
  min-width: 90px;
}
.nowrap {
  white-space: nowrap;
}
.ans-text {
  max-height: 130px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  min-width: 120px;
}
.ans-img {
  display: inline-block;
  margin: 2px;
}
.ans-img img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
}
.ans-file {
  margin: 2px 0;
  font-size: 12px;
}
.pager-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}
.pager-size {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray-600);
}
.pager-size select {
  padding: 5px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: #fff;
}
.pager-info {
  font-size: 13px;
  color: var(--gray-500);
}
.pager {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

/* ---------- 题目设置 (展示形式 / 选项关联) ---------- */
.qcard-settings {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.q-setting {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray-600);
}
.q-setting select {
  padding: 5px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
}
.option-group {
  border: 1px dashed var(--gray-300);
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 8px;
  background: var(--gray-50);
}
.group-header {
  font-size: 12px;
  color: var(--gray-600);
  margin-bottom: 6px;
  font-weight: 500;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .editor-body {
    grid-template-columns: 1fr;
  }
  .editor-side {
    position: static;
  }
}
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }
  .brand span:not(.brand-icon),
  .nav a span,
  .user,
  .sidebar-foot .btn {
    display: none;
  }
  .nav a {
    justify-content: center;
  }
  .main {
    padding: 18px 14px;
  }
}