/* ===== NexusMind · 数字记忆库 ===== */
/* 毛玻璃 · 蓝紫渐变 · 极简未来感 */

:root {
  --bg-start: #0f0c29;
  --bg-mid: #1a1542;
  --bg-end: #2d1b4e;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.7);
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.35);
  --accent-cyan: #5ce1e6;
  --radius: 16px;
  --radius-sm: 10px;
  --font-sans: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(160deg, var(--bg-start) 0%, var(--bg-mid) 45%, var(--bg-end) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  padding: 0 12px;
}

/* 背景装饰（可选光晕） */
.bg-gradient {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 92, 255, 0.2), transparent),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(92, 124, 255, 0.12), transparent),
    radial-gradient(ellipse 50% 30% at 0% 80%, rgba(92, 200, 255, 0.08), transparent);
  pointer-events: none;
  z-index: 0;
}

.app {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(16px, 4vw, 24px) 0 24px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 右上角：登录 / 用户状态 ===== */
.top-bar {
  position: absolute;
  top: clamp(16px, 4vw, 24px);
  right: clamp(16px, 4vw, 24px);
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
}

.btn-login {
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.2s, border-color 0.2s;
}

.btn-login:hover {
  opacity: 0.95;
  border-color: var(--accent);
}

.user-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-name {
  font-size: 0.9rem;
  color: var(--accent-cyan);
}

.btn-logout {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.2s;
}

.btn-logout:hover {
  opacity: 0.9;
}

.btn-account {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.2s, border-color 0.2s;
}

.btn-account:hover {
  opacity: 0.95;
  border-color: var(--accent);
}

.auth-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  margin: 0;
  padding: 0;
  min-width: 280px;
  max-width: 90vw;
  border-radius: var(--radius);
  overflow: hidden;
}

.auth-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px 0;
  margin-bottom: 8px;
}

.auth-panel-close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, color 0.2s;
}

.auth-panel-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.auth-panel .auth-tabs {
  display: flex;
  gap: 0;
  padding: 0;
  margin: 0;
  flex: 1;
}

.auth-panel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 16px 4px;
}

.auth-panel-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0 16px 12px;
  line-height: 1.4;
}

.auth-panel-body {
  min-height: 152px;
  padding: 0 16px 8px;
  position: relative;
}

.auth-panel .auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
  margin: 0;
  width: 100%;
  box-sizing: border-box;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  left: 16px;
  right: 16px;
  top: 0;
  transition: opacity 0.2s ease;
}

.auth-panel .auth-form.auth-form--active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
  left: 0;
  right: 0;
}

.auth-panel .auth-form input,
.auth-panel .auth-form .btn {
  width: 100%;
  box-sizing: border-box;
  max-width: 100%;
}

.auth-panel .auth-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0 16px 16px;
  padding: 0;
  line-height: 1.4;
}

/* ===== 系统设置按钮（右上角，与用户栏同一行） ===== */
.btn-settings {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.2s, border-color 0.2s;
}

.btn-settings:hover {
  opacity: 0.95;
  border-color: var(--accent);
}

/* ===== 用户设置面板 ===== */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}

.settings-overlay[hidden],
.settings-panel[hidden] {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.settings-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  margin: 0;
  min-width: 320px;
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.settings-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--glass-border);
}

.settings-panel-close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s, color 0.2s;
}

.settings-panel-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.settings-panel-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.settings-panel-body {
  padding: 16px;
  overflow-y: auto;
  flex: 1;
}

.settings-section {
  margin-bottom: 20px;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin: 0 0 10px;
}

.settings-data-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

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

.settings-api-value {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
  word-break: break-all;
  flex: 1;
  min-width: 120px;
}

.settings-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 6px 0 0;
  line-height: 1.4;
}

.settings-account p {
  margin: 0 0 6px;
  font-size: 0.9rem;
}

.settings-account p:last-child {
  margin-bottom: 0;
}

.settings-label {
  color: var(--text-secondary);
  margin-right: 4px;
}

.settings-curl {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin: 0 0 10px;
  overflow-x: auto;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.settings-curl code {
  white-space: pre;
  font-family: ui-monospace, monospace;
}

.settings-prefs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-pref-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
}

.settings-pref-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* 未登录时上传区：引导登录 */
.upload-login-prompt {
  text-align: center;
  padding: 28px 20px;
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.upload-login-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.upload-login-prompt .btn-primary {
  margin: 0;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}

.auth-tabs {
  display: flex;
  gap: 0;
}

.auth-tab {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s;
}

.auth-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.auth-tab.active {
  background: linear-gradient(135deg, var(--accent), #5c7cff);
  color: #fff;
}

.auth-tab.active:hover {
  opacity: 0.95;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.auth-form input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
}

.auth-form input::placeholder {
  color: var(--text-secondary);
}

.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-block {
  width: 100%;
  margin-top: 4px;
}

.auth-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 12px;
  margin-bottom: 0;
}

/* ===== 毛玻璃卡片 ===== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

/* ===== Header ===== */
.header {
  text-align: center;
  padding: clamp(24px, 5vw, 32px) 0 20px;
  padding-top: 52px;
}

.logo {
  font-size: clamp(1.3rem, 5vw, 1.4rem); /* 约 21–22px */
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.tagline {
  font-size: 0.875rem; /* 约 14px */
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.6;
  margin-top: 8px;
}

/* ===== Main ===== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.app--embedded .top-bar,
.app--embedded .header,
.app--embedded .memory-section,
.app--embedded .footer {
  display: none;
}

.app--embedded .chat-section,
.app--embedded .upload-section {
  padding: 12px;
}

.app--embedded .main {
  gap: 12px;
}

@media (max-width: 600px) {
  .app--embedded .chat-messages {
    max-height: 220px;
  }
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--glass-border);
}

/* ===== Chat 区域 ===== */
.chat-section {
  padding: 20px;
}

.chat-messages {
  min-height: 120px;
  max-height: 280px;
  overflow-y: auto;
  margin-bottom: 12px;
}

.chat-welcome {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.chat-welcome p + p {
  margin-top: 8px;
}

.chat-msg {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.chat-msg.user {
  background: var(--accent-soft);
  margin-left: 0;
  margin-right: 24px;
}

.chat-msg.ai {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  margin-left: 24px;
  margin-right: 0;
  overflow-x: auto;
}

.chat-msg-ai-body {
  font-size: 0.9rem;
  line-height: 1.6;
}

.chat-msg-ai-body h1,
.chat-msg-ai-body h2,
.chat-msg-ai-body h3 {
  font-size: 1rem;
  margin: 0.4em 0 0.3em;
  font-weight: 600;
}

.chat-msg-ai-body p {
  margin: 0.25em 0;
}

.chat-msg-ai-body ul,
.chat-msg-ai-body ol {
  margin: 0.25em 0 0.25em 1.2em;
  padding-left: 1em;
}

.chat-msg-ai-body li + li {
  margin-top: 0.1em;
}

.chat-msg-ai-body strong {
  font-weight: 600;
}

.chat-msg-ai-body code {
  font-family: "SF Mono", "Monaco", "Consolas", monospace;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.1em 0.3em;
  border-radius: 4px;
  font-size: 0.8em;
}

.chat-msg-ai-body pre {
  background: rgba(0, 0, 0, 0.55);
  border-radius: 6px;
  padding: 10px 12px;
  margin: 0.4em 0;
  overflow-x: auto;
}

.chat-msg-ai-body pre code {
  background: transparent;
  padding: 0;
  font-size: 0.8em;
}

.chat-msg-ai-body hr {
  border: none;
  border-top: 1px solid var(--glass-border);
  margin: 0.6em 0;
}

.chat-input-wrap {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.chat-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chat-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.8;
}

.chat-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn-send {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), #5c7cff);
  border: none;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn-send:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px var(--accent-soft);
}

.btn-send:active {
  transform: scale(0.98);
}

/* ===== Upload 区域 ===== */
.upload-section {
  padding: 20px;
}

.local-mode-banner {
  margin-bottom: 10px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.local-toggle-wrap {
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.local-toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
}

.local-toggle-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.local-toggle-hint {
  margin: 0;
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: right;
}

.memory-section {
  padding: 20px;
}

.memory-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.memory-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.memory-tabs {
  display: flex;
  gap: 4px;
}

.memory-tab {
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s;
}

.memory-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.memory-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.memory-all-button {
  padding: 8px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.memory-all-button:hover,
.memory-all-button.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--accent);
}

.memory-admin-button {
  padding: 8px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background: linear-gradient(135deg, var(--accent), #5c7cff);
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.15s;
}

.memory-admin-button:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.memory-category-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-align: center;
  padding: 0 8px;
}

.memory-list-wrap {
  margin-top: 0;
}

.memory-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 8px;
  box-sizing: border-box;
}

.memory-list-empty {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  padding: 12px 0;
}

.memory-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.memory-item-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.memory-item-name {
  font-size: 0.9rem;
  color: var(--text-primary);
  word-break: break-all;
  text-align: left;
  padding: 0;
  margin: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.memory-item-name:hover {
  color: var(--accent-cyan);
}

.memory-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.memory-meta-time {
  opacity: 0.9;
}

.memory-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
}

.memory-tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 0.7rem;
  background: rgba(124, 92, 255, 0.18);
  color: #e0d4ff;
  white-space: nowrap;
}

.upload-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.upload-tags-empty {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.memory-tag--core {
  background: rgba(124, 92, 255, 0.28);
  color: #e0d4ff;
}

.memory-tag--customer {
  background: rgba(245, 158, 11, 0.25);
  color: #fde68a;
}

.memory-tag--knowledge {
  background: rgba(16, 185, 129, 0.25);
  color: #bbf7d0;
}

.memory-tag--template {
  background: rgba(59, 130, 246, 0.25);
  color: #bfdbfe;
}

.memory-tag--chat {
  background: rgba(244, 114, 182, 0.25);
  color: #fbcfe8;
}

.memory-tag--system {
  background: rgba(148, 163, 184, 0.3);
  color: #e5e7eb;
}

.btn-memory-delete {
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 100, 100, 0.2);
  border: 1px solid rgba(255, 100, 100, 0.4);
  color: #ff9999;
  cursor: pointer;
  font-family: inherit;
}

.btn-memory-delete:hover {
  background: rgba(255, 100, 100, 0.3);
}

.memory-item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-memory-ai {
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(124, 92, 255, 0.25);
  border: 1px solid rgba(124, 92, 255, 0.5);
  color: #c4b5fd;
  cursor: pointer;
  font-family: inherit;
}

.btn-memory-ai:hover {
  background: rgba(124, 92, 255, 0.35);
}

.memory-preview-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}

.memory-preview-overlay[hidden],
.memory-preview-panel[hidden] {
  display: none !important;
  pointer-events: none;
}

.memory-preview-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  min-width: 320px;
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.memory-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--glass-border);
}

.memory-preview-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.memory-preview-body {
  padding: 16px;
  overflow: auto;
  flex: 1;
  min-height: 120px;
}

.memory-preview-content {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, monospace;
}

.memory-preview-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--glass-border);
}

.upload-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.upload-zone {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 20px;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.upload-zone-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.upload-icon {
  font-size: 1.75rem;
  color: var(--accent-cyan);
  opacity: 0.9;
}

.upload-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 分类选择 */
.form-step {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.category-card {
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.category-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.category-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.category-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.category-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.input-tags {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 0.9rem;
  font-family: inherit;
}

.input-tags:focus {
  outline: none;
  border-color: var(--accent);
}

.md-preview {
  width: 100%;
  min-height: 100px;
  max-height: 200px;
  overflow: auto;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 0.8rem;
  font-family: "SF Mono", "Monaco", "Consolas", monospace;
  color: var(--accent-cyan);
  white-space: pre-wrap;
  word-break: break-word;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem; /* 按钮文字 15px 左右 */
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.2s;
}

.btn:hover {
  opacity: 0.95;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #5c7cff);
  border: none;
  color: #fff;
}

.btn-primary:hover {
  box-shadow: 0 4px 16px var(--accent-soft);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

/* Footer */
.footer {
  padding: 20px 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.app-footer {
  position: static;
  margin-top: 24px;
  font-size: 12px;
  color: #888;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-start;
}

.footer-link {
  color: #888;
  text-decoration: none;
  cursor: pointer;
}

.footer-link:hover {
  color: #666;
  text-decoration: underline;
}

.footer-separator {
  color: #aaa;
}

.footer-text {
  color: #888;
}

@media (max-width: 400px) {
  .app-footer {
    font-size: 11px;
    bottom: 8px;
    left: 8px;
  }
}

/* ===== 管理员后台 ===== */
.admin-section {
  padding: 20px;
}

.admin-guard-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.admin-user-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.admin-user-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.admin-user-email {
  font-size: 0.95rem;
  color: var(--text-primary);
  word-break: break-all;
}

.admin-user-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.admin-empty {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  padding: 12px 0;
}

.admin-user-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.admin-user-info-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.admin-user-info-row span:first-child {
  color: var(--text-secondary);
}

.admin-points-row {}
.admin-points-input {}
.admin-points-reason {}

.admin-files-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.admin-files-tabs {
  flex-wrap: wrap;
}

.admin-upload-row {
  margin-bottom: 10px;
}

.admin-upload-form {
  margin-bottom: 12px;
}

.admin-files-list {
  margin-top: 8px;
}

.admin-file-item .memory-item-meta {
  font-size: 0.75rem;
}

/* ===== 桌面版：我的数字大脑 ===== */
.desktop-body {
  font-family: var(--font-sans);
  background: linear-gradient(160deg, var(--bg-start) 0%, var(--bg-mid) 45%, var(--bg-end) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  padding: 0 12px;
}

.desktop-app {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(20px, 4vw, 32px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.desktop-header {
  text-align: left;
  margin-bottom: 4px;
}

.desktop-title {
  font-size: 1.7rem; /* 约 27px */
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.desktop-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.desktop-section {
  padding: 20px 20px 18px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

.desktop-section + .desktop-section {
  margin-top: 4px;
}

.desktop-section-title {
  font-size: 1.2rem; /* 约 19px */
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.desktop-section-desc {
  font-size: 0.9rem;
  color: #a0aec0;
  margin-bottom: 14px;
}

.desktop-core .desktop-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.desktop-core-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.desktop-core-preview {
  background: rgba(0, 0, 0, 0.28);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  min-height: 80px;
  font-size: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.desktop-core-placeholder {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.desktop-core-text {
  margin: 0;
  font-size: 1rem;
}

.desktop-upload-zone {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 18px;
}

.desktop-upload-zone--dragover,
.desktop-upload-zone:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.desktop-upload-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.desktop-upload-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.25);
}

.desktop-upload-text {
  text-align: left;
  font-size: 0.9rem;
  color: #a0aec0;
}

.desktop-upload-hint {
  font-size: 0.88rem;
  color: #a0aec0;
  opacity: 0.9;
  margin-top: 4px;
}

.desktop-files {
  margin-top: 6px;
}

.desktop-files-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.desktop-files-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.desktop-files-count {
  font-size: 0.9rem;
  color: #a0aec0;
}

.desktop-files-table-wrap {
  max-height: 280px;
  overflow: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
}

.desktop-files-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.desktop-files-table thead tr {
  background: rgba(255, 255, 255, 0.04);
}

.desktop-files-table th,
.desktop-files-table td {
  padding: 9px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: left;
}

.desktop-files-table th {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.desktop-files-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.desktop-files-empty td {
  text-align: center;
  color: var(--text-secondary);
}

.btn-xs {
  padding: 6px 10px;
  font-size: 0.82rem;
}

.btn-danger {
  background: rgba(255, 100, 100, 0.2);
  border-color: rgba(255, 100, 100, 0.5);
  color: #ffb3b3;
}

.btn-danger:hover {
  background: rgba(255, 100, 100, 0.3);
}

.desktop-chat-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.desktop-chat-messages {
  min-height: 140px;
  max-height: 280px;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 10px 6px;
  border: 1px solid var(--glass-border);
}

.desktop-chat-welcome {
  font-size: 0.9rem;
  color: #a0aec0;
}

.desktop-chat-input-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.desktop-chat-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 0.98rem;
  font-family: inherit;
  resize: none;
  min-height: 52px;
  max-height: 140px;
}

.desktop-chat-input::placeholder {
  color: var(--text-secondary);
}

.desktop-chat-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.desktop-chat-send {
  flex-shrink: 0;
  padding-inline: 22px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.desktop-chat-msg {
  margin-bottom: 10px;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
}

.desktop-chat-msg.user {
  background: var(--accent-soft);
  margin-right: 40px;
}

.desktop-chat-msg.ai {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  margin-left: 40px;
}

.desktop-chat-msg-ai-body {
  font-size: 0.98rem;
  line-height: 1.7;
}

.desktop-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.desktop-modal-overlay[hidden] {
  display: none !important;
}

.desktop-modal {
  max-width: 720px;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
}

.desktop-modal--wide {
  max-width: 880px;
}

.desktop-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px 0;
}

.desktop-modal-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.desktop-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.desktop-modal-body {
  padding: 10px 16px 4px;
}

.desktop-modal-tip {
  font-size: 0.9rem;
  color: #a0aec0;
  margin-bottom: 10px;
}

.desktop-modal-textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-primary);
  padding: 10px 12px;
  font-size: 0.98rem;
  font-family: inherit;
}

.desktop-modal-footer {
  padding: 8px 16px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.desktop-modal-status {
  flex: 1;
  font-size: 0.85rem;
  color: #a0aec0;
}

.desktop-modal-preview {
  max-height: 380px;
  overflow: auto;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  padding: 10px 12px;
  font-size: 0.9rem;
  white-space: pre-wrap;
}

.desktop-settings-row {
  margin-bottom: 12px;
}

.desktop-settings-label {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.desktop-settings-api {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "SF Mono", "Monaco", "Consolas", monospace;
  font-size: 0.85rem;
}

.desktop-settings-api-text {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.35);
  border: 1px dashed var(--glass-border);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.desktop-settings-hint {
  margin-top: 4px;
  font-size: 0.8rem;
  color: #a0aec0;
}

.desktop-settings-quota {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

@media (max-width: 768px) {
  .desktop-app {
    max-width: 100%;
    padding: 16px 8px calc(24px + env(safe-area-inset-bottom, 0px));
  }

  .desktop-section {
    padding: 16px;
  }

  .desktop-title {
    font-size: 1.5rem;
  }

  .desktop-chat-msg.user {
    margin-right: 16px;
  }

  .desktop-chat-msg.ai {
    margin-left: 16px;
  }

  .desktop-section + .desktop-section {
    margin-top: 16px;
  }

  .desktop-modal {
    max-width: 100%;
  }
}

/* 移动端 */
@media (max-width: 600px) {
  .logo {
    font-size: 1.3rem;
  }

  .tagline {
    font-size: 0.85rem;
  }

  .section-title {
    font-size: 1rem;
  }

  .upload-login-prompt .btn-primary {
    width: 90%;
    height: 48px;
  }

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

  .chat-msg.user {
    margin-right: 12px;
  }

  .chat-msg.ai {
    margin-left: 12px;
  }

  .form-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .memory-item {
    padding: 12px 8px;
    font-size: 14px;
  }

  .memory-category-desc {
    font-size: 0.78rem;
    padding: 0 4px;
  }

  .admin-files-header {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-user-row {
    flex-direction: column;
    align-items: stretch;
  }
}